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I have an equivalent system with 5 buses. two of the buses are hydro generator buses and two are modeled as equivalent sources with given short circuit MVA as machine with GENCLS dynamic model and base MVA as per the given MVA. this was followed by the answer in one of the queries in this forum. the steady state simulation is stable and initial condition is ok, but after applying 3 phase fault one of the equivalent source modelled is not recovering after fault and there are continuous power oscillations, because of that other machines also giving oscillating power. can any one please help me how can I solve this problem. please suggest how can i share the raw and dyr files for further investigation.

I have an equivalent system with 5 buses. two of the buses are hydro generator buses and two are modeled as equivalent sources with given short circuit MVA as machine with GENCLS dynamic model and base MVA as per the given MVA. this was followed by the answer in one of the queries in this forum. the steady state simulation is stable and initial condition is ok, but after applying 3 phase fault one of the equivalent source modelled is not recovering after fault and there are continuous power oscillations, because of that other machines also giving oscillating power. can any one please help me how can I solve this problem. please suggest how can i share the raw and dyr files for further investigation.

I have an equivalent system with 5 buses. two of the buses are hydro generator buses and two are modeled as equivalent sources with given short circuit MVA as machine with GENCLS dynamic model and base MVA as per the given MVA. this was followed by the answer in one of the queries in this forum. the steady state simulation is stable and initial condition is ok, but after applying 3 phase fault one of the equivalent source modelled is not recovering after fault and there are continuous power oscillations, because of that other machines also giving oscillating power. can any one please help me how can I solve this problem. please suggest how can i share the raw and dyr files for further investigation.

---Raw Data File--- @!IC,SBASE,REV,XFRRAT,NXFRAT,BASFRQ 0, 100.00, 36, 0, 1, 50.00 / PSS(R)E Xplore-36.1 WED, MAR 04 2026 15:04

GENERAL, THRSHZ=0.0001, PQBRAK=0.7, BLOWUP=5.0, MaxIsolLvls=4, CAMaxReptSln=20, ChkDupCntLbl=0 GAUSS, ITMX=1000, ACCP=1.6, ACCQ=1.6, ACCM=1.0, TOL=0.0001 NEWTON, ITMXN=1000, ACCN=1.0, TOLN=0.1, VCTOLQ=0.1, VCTOLV=0.00001, DVLIM=0.99, NDVFCT=0.99 ADJUST, ADJTHR=0.005, ACCTAP=1.0, TAPLIM=0.05, SWVBND=100.0, MXTPSS=99, MXSWIM=10 TYSL, ITMXTY=20, ACCTY=1.0, TOLTY=0.00001 SOLVER, FNSL, ACTAPS=0, AREAIN=0, PHSHFT=0, DCTAPS=0, SWSHNT=0, FLATST=0, VARLIM=99, NONDIV=0 RATING, 1, "RATE1 ", "RATING SET 1 " RATING, 2, "RATE2 ", "RATING SET 2 " RATING, 3, "RATE3 ", "RATING SET 3 " RATING, 4, "RATE4 ", "RATING SET 4 " RATING, 5, "RATE5 ", "RATING SET 5 " RATING, 6, "RATE6 ", "RATING SET 6 " RATING, 7, "RATE7 ", "RATING SET 7 " RATING, 8, "RATE8 ", "RATING SET 8 " RATING, 9, "RATE9 ", "RATING SET 9 " RATING,10, "RATE10", "RATING SET 10 " RATING,11, "RATE11", "RATING SET 11 " RATING,12, "RATE12", "RATING SET 12 " SWDRATNAM, 1, "RATE1 ", 0, "MVA", "SWD RATING SET 1 " SWDRATNAM, 2, "RATE2 ", 0, "MVA", "SWD RATING SET 2 " SWDRATNAM, 3, "RATE3 ", 0, "MVA", "SWD RATING SET 3 " SWDRATNAM, 4, "RATE4 ", 0, "MVA", "SWD RATING SET 4 " SWDRATNAM, 5, "RATE5 ", 0, "MVA", "SWD RATING SET 5 " SWDRATNAM, 6, "RATE6 ", 0, "MVA", "SWD RATING SET 6 " SWDRATNAM, 7, "RATE7 ", 0, "MVA", "SWD RATING SET 7 " SWDRATNAM, 8, "RATE8 ", 0, "MVA", "SWD RATING SET 8 " SWDRATNAM, 9, "RATE9 ", 0, "MVA", "SWD RATING SET 9 " SWDRATNAM, 10, "RATE10", 0, "MVA", "SWD RATING SET 10 " SWDRATNAM, 11, "RATE11", 0, "MVA", "SWD RATING SET 11 " SWDRATNAM, 12, "RATE12", 0, "MVA", "SWD RATING SET 12 " 0 / END OF SYSTEM-WIDE DATA, BEGIN BUS DATA @! I,'NAME ', BASKV, IDE,AREA,ZONE,OWNER, VM, VA, NVHI, NVLO, EVHI, EVLO 174445,'MUZAFRN4 ', 400.0000,2, 72, 171, 55,1.00000, -2.6734,1.10000,0.90000,1.10000,0.90000 194001,'KANPRAYAG ', 400.0000,1, 72, 191, 1,0.99960, 0.7184,1.10000,0.90000,1.10000,0.90000 194052,'SRINAGARPT ', 400.0000,3, 72, 191, 2,1.00000, 0.0000,1.10000,0.90000,1.10000,0.90000 194054,'PIPALKOTI SW', 400.0000,1, 72, 191, 1,0.99935, 1.4211,1.10000,0.90000,1.10000,0.90000 194056,'TPVNVISHNUGD', 400.0000,2, 72, 191, 1,1.00000, 1.4576,1.10000,0.90000,1.10000,0.90000 194057,'PIPALKOTI ', 400.0000,2, 72, 191, 1,1.00000, 1.4831,1.10000,0.90000,1.10000,0.90000 0 / END OF BUS DATA, BEGIN LOAD DATA @! I,'ID',STAT,AREA,ZONE, PL, QL, IP, IQ, YP, YQ, OWNER,SCALE,INTRPT, DGENP, DGENQ,DGENF,' LOAD TYPE ', 'N A M E' 0 / END OF LOAD DATA, BEGIN FIXED SHUNT DATA @! I,'ID',STATUS, GL, BL, 'N A M E' 0 / END OF FIXED SHUNT DATA, BEGIN VOLTAGE DROOP CONTROL DATA @!'NAME', STATUS,REGBUS, QDB, QMIN, QMAX, VDBLOW,VDBHIGH, VLOW, VHIGH 0 / END OF VOLTAGE DROOP CONTROL DATA, BEGIN GENERATOR DATA @! I,'ID', PG, QG, QT, QB, VS, IREG,NREG, MBASE, ZR, ZX, RT, XT, GTAP,STAT, RMPCT, PT, PB,BASLOD,O1, F1, O2, F2, O3, F3, O4, F4,WMOD, WPF 'DROOPNAME' 'N A M E' 174445,'1 ', -150.000, 20.270, 222.000, -222.000,1.00000,174445, 0, 33113.000, 0.00000E+0, 1.00000E+0, 0.00000E+0, 0.00000E+0,1.00000,1, 100.0, 200.000, -200.000, 0, 55,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','MUZAFRN4 400.00 ' 194052,'1 ', -616.247, 72.403, 222.000, -111.000,1.00000,194052, 0, 16697.000, 0.00000E+0, 1.00000E+0, 0.00000E+0, 0.00000E+0,1.00000,1, 100.0, 500.000, -500.000, 0, 2,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','SRINAGARPT 400.00 ' 194056,'1 ', 65.000, 4.045, 65.000, -32.500,1.00000,194056, 0, 152.940, 0.00000E+0, 2.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 130.000, 0.000, 0, 1,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','TPVNVISHNUGD1 400.00 ' 194056,'2 ', 65.000, 4.045, 65.000, -32.500,1.00000,194056, 0, 152.940, 0.00000E+0, 2.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 130.000, 0.000, 0, 1,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','TPVNVISHNUGD2 400.00 ' 194056,'3 ', 65.000, 4.045, 65.000, -32.500,1.00000,194056, 0, 152.940, 0.00000E+0, 2.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 130.000, 0.000, 0, 1,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','TPVNVISHNUGD3 400.00 ' 194056,'4 ', 130.000, 8.089, 65.000, -32.500,1.00000,194056, 0, 152.940, 0.00000E+0, 2.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 130.000, 0.000, 0, 1,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','TPVNVISHNUGD4 400.00 ' 194057,'1 ', 111.000, -21.566, 55.500, -27.750,1.00000,194057, 0, 130.590, 0.00000E+0, 1.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 111.000, 0.000, 0,1954,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','PIPALKOTI1 400.00 ' 194057,'2 ', 111.000, -21.566, 55.500, -27.750,1.00000,194057, 0, 130.590, 0.00000E+0, 1.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 111.000, 0.000, 0,1954,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','PIPALKOTI2 400.00 ' 194057,'3 ', 111.000, -21.566, 55.500, -27.750,1.00000,194057, 0, 130.590, 0.00000E+0, 1.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 111.000, 0.000, 0,1954,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','PIPALKOTI3 400.00 ' 194057,'4 ', 111.000, -21.566, 55.500, -27.750,1.00000,194057, 0, 130.590, 0.00000E+0, 1.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 111.000, 0.000, 0,1954,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','PIPALKOTI4 400.00 ' 0 / END OF GENERATOR DATA, BEGIN SWITCHING DEVICE RATING SET DATA @! 'N A M E' , 'DESCRIPTION', RATE1, RATE2, RATE3, RATE4, RATE5, RATE6, RATE7, RATE8, RATE9, RATE10, RATE11, RATE12 0 / END OF SWITCHING DEVICE RATING SET DATA, BEGIN BRANCH DATA @! I, J,'CKT', R, X, B, 'N A M E' , RATE1, RATE2, RATE3, RATE4, RATE5, RATE6, RATE7, RATE8, RATE9, RATE10, RATE11, RATE12, GI, BI, GJ, BJ,STAT,MET, LEN, O1, F1, O2, F2, O3, F3, O4, F4 174445,194054,'1 ', 4.22000E-03, 4.70000E-02,0.00000,' ', 517.00, 852.00, 852.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1,226.50, 55,1.0000 194001,194052,'1 ', 8.30000E-04, 8.85000E-03,0.00020,' ', 681.00,1714.00,1714.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1, 46.00, 1,1.0000 194001,194052,'2 ', 8.30000E-04, 8.85000E-03,0.00020,' ', 681.00,1714.00,1714.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1, 46.00, 1,1.0000 194001,194054,'1 ', 8.10000E-04, 8.65000E-03,0.00020,' ', 681.00,1714.00,1714.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1, 45.00, 1,1.0000 194001,194054,'2 ', 8.10000E-04, 8.65000E-03,0.00020,' ', 681.00,1714.00,1714.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1, 45.00, 1,1.0000 194052,194054,'1 ', 9.70000E-04, 1.46300E-02,0.00020,' ', 695.00,1600.00,1600.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 92.00, 1,1.0000 194052,194054,'2 ', 9.70000E-04, 1.46300E-02,0.00020,' ', 695.00,1600.00,1600.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 92.00, 1,1.0000 194054,194056,'1 ', 3.72000E-04, 4.15000E-04,0.00000,' ', 560.00, 857.00, 857.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 20.00, 1,1.0000 194054,194056,'2 ', 3.72000E-04, 4.15000E-04,0.00000,' ', 500.00, 857.00, 857.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 20.00, 1,1.0000 194054,194057,'1 ', 3.72000E-04, 4.15000E-04,0.00002,' ', 560.00, 857.00, 857.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 2.00, 1,1.0000 194054,194057,'2 ', 3.72000E-04, 4.15000E-04,0.00002,' ', 560.00, 857.00, 857.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 2.00, 1,1.0000 0 / END OF BRANCH DATA, BEGIN SYSTEM SWITCHING DEVICE DATA @! I, J,'CKT', X, 'RATING SET NAME' , STAT,NSTAT, MET,STYPE,'NAME' 0 / END OF SYSTEM SWITCHING DEVICE DATA, BEGIN TRANSFORMER DATA @! I, J, K,'CKT',CW,CZ,CM, MAG1, MAG2,NMETR, 'N A M E', STAT,O1, F1, O2, F2, O3, F3, O4, F4, 'VECGRP', ZCOD @! R1-2, X1-2, SBASE1-2, R2-3, X2-3, SBASE2-3, R3-1, X3-1, SBASE3-1, VMSTAR, ANSTAR @!WINDV1, NOMV1, ANG1, RATE1-1, RATE1-2, RATE1-3, RATE1-4, RATE1-5, RATE1-6, RATE1-7, RATE1-8, RATE1-9,RATE1-10,RATE1-11,RATE1-12,COD1,CONT1,NOD1, RMA1, RMI1, VMA1, VMI1, NTP1,TAB1, CR1, CX1, CNXA1 @!WINDV2, NOMV2, ANG2, RATE2-1, RATE2-2, RATE2-3, RATE2-4, RATE2-5, RATE2-6, RATE2-7, RATE2-8, RATE2-9,RATE2-10,RATE2-11,RATE2-12,COD2,CONT2,NOD2, RMA2, RMI2, VMA2, VMI2, NTP2,TAB2, CR2, CX2, CNXA2 @!WINDV3, NOMV3, ANG3, RATE3-1, RATE3-2, RATE3-3, RATE3-4, RATE3-5, RATE3-6, RATE3-7, RATE3-8, RATE3-9,RATE3-10,RATE3-11,RATE3-12,COD3,CONT3,NOD3, RMA3, RMI3, VMA3, VMI3, NTP3,TAB3, CR3, CX3, CNXA3 0 / END OF TRANSFORMER DATA, BEGIN AREA DATA @! I, ISW, PDES, PTOL, 'ARNAME' 0 / END OF AREA DATA, BEGIN TWO-TERMINAL DC DATA @! 'NAME', MDC, RDC, SETVL, VSCHD, VCMOD, RCOMP, DELTI,METER DCVMIN,CCCITMX,CCCACC @! IPR,NBR, ANMXR, ANMNR, RCR, XCR, EBASR, TRR, TAPR, TMXR, TMNR, STPR, ICR,NDR, IFR, ITR,'IDR', XCAPR @! IPI,NBI, ANMXI, ANMNI, RCI, XCI, EBASI, TRI, TAPI, TMXI, TMNI, STPI, ICI,NDI, IFI, ITI,'IDI', XCAPI 0 / END OF TWO-TERMINAL DC DATA, BEGIN VSC DC LINE DATA @! 'NAME', MDC, RDC, O1, F1, O2, F2, O3, F3, O4, F4 @!IBUS,TYPE,MODE, DCSET, ACSET, ALOSS, BLOSS,MINLOSS, SMAX, IMAX, PWF, MAXQ, MINQ, VSREG,NREG, RMPCT 0 / END OF VSC DC LINE DATA, BEGIN IMPEDANCE CORRECTION DATA @!I, T1, Re(F1), Im(F1), T2, Re(F2), Im(F2), T3, Re(F3), Im(F3), T4, Re(F4), Im(F4), T5, Re(F5), Im(F5), T6, Re(F6), Im(F6) @! T7, Re(F7), Im(F7), T8, Re(F8), Im(F8), T9, Re(F9), Im(F9), T10, Re(F10),Im(F10), T11, Re(F11),Im(F11), T12, Re(F12),Im(F12) @! ... 0 / END OF IMPEDANCE CORRECTION DATA, BEGIN MULTI-TERMINAL DC DATA @! 'NAME', NCONV,NDCBS,NDCLN, MDC, VCONV, VCMOD, VCONVN @! IB, N, ANGMX, ANGMN, RC, XC, EBAS, TR, TAP, TPMX, TPMN, TSTP, SETVL, DCPF, MARG,CNVCOD @!IDC, IB,AREA,ZONE, 'DCNAME', IDC2, RGRND,OWNER @!IDC,JDC,'DCCKT',MET, RDC, LDC 0 / END OF MULTI-TERMINAL DC DATA, BEGIN MULTI-SECTION LINE DATA @! I, J,'ID',MET,DUM1, DUM2, DUM3, DUM4, DUM5, DUM6, DUM7, DUM8, DUM9 0 / END OF MULTI-SECTION LINE DATA, BEGIN ZONE DATA @! I, 'ZONAME' 0 / END OF ZONE DATA, BEGIN INTER-AREA TRANSFER DATA @!ARFROM,ARTO,'TRID',PTRAN 0 / END OF INTER-AREA TRANSFER DATA, BEGIN OWNER DATA @! I, 'OWNAME' 0 / END OF OWNER DATA, BEGIN FACTS DEVICE DATA @! 'NAME', I, J,MODE,PDES, QDES, VSET, SHMX, TRMX, VTMN, VTMX, VSMX, IMX, LINX, RMPCT,OWNER, SET1, SET2,VSREF, FCREG,NREG, 'MNAME' 0 / END OF FACTS DEVICE DATA, BEGIN SWITCHED SHUNT DATA @! I,'ID',MODSW,ADJM,ST, VSWHI, VSWLO, SWREG,NREG, RMPCT, 'RMIDNT', BINIT, 'N A M E' ,S1,N1, B1, S2,N2, B2, S3,N3, B3, S4,N4, B4, S5,N5, B5, S6,N6, B6, S7,N7, B7, S8,N8, B8 0 / END OF SWITCHED SHUNT DATA, BEGIN GNE DATA @! 'NAME', 'MODEL', NTERM,BUS1...BUSNTERM,NREAL,NINTG,NCHAR @!ST,OWNER,NMETR @! REAL1...REAL(MIN(10,NREAL)) @! INTG1...INTG(MIN(10,NINTG)) @! CHAR1...CHAR(MIN(10,NCHAR)) 0 / END OF GNE DATA, BEGIN INDUCTION MACHINE DATA @! I,'ID',ST,SC,DC,AREA,ZONE,OWNER, 'N A M E' ,TC,BC, MBASE,RATEKV,PC, PSET, H, A, B, D, E, RA, XA, XM, R1, X1, R2, X2, X3, E1, SE1, E2, SE2, IA1, IA2, XAMULT 0 / END OF INDUCTION MACHINE DATA, BEGIN LOAD TYPE DATA @! 'NAME', 'DESCRIPTION' 0 / END OF LOAD TYPE DATA, BEGIN INTERFACE DATA @! ' NAME ', I,TYPE,RATMAX1, RATMAX2, RATMAX3, RATMAX4, RATMAX5, RATMAX6 ,RATMAX7, RATMAX8, RATMAX9, RATMAX10,RATMAX11,RATMAX12,RATMIN1, RATMIN2, RATMIN3, RATMIN4, RATMIN5, RATMIN6 ,RATMIN7, RATMIN8, RATMIN9, RATMIN10,RATMIN11,RATMIN12 0 / END OF INTERFACE DATA, BEGIN INTERFACE ELEMENT DATA @! 'NAME' TYPE, IBUS, JBUS, KBUS, 'DEVNAMEID',DIRECTION, METER, WF 0 / END OF INTERFACE ELEMENT DATA, BEGIN SUBSTATION DATA 0 / END OF SUBSTATION DATA Q

------ DYR File ----------- 194057 'GENSAL' 1 8.6 0.75000E-01 0.1740 4.378 0.0000 1.0600 0.67000 0.26000 0.15000 0.11000 0.0800 0.75000 / 194057 'ST5B' 1 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194057 'IEEEG3' 1 0.2000 0.0400 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.6540 0.5000 1.0000 1.500 1.000 / 194057 'PSS3B' 1 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194057 'GENSAL' 2 8.6 0.75000E-01 0.1740 4.378 0.0000 1.0600 0.67000 0.26000 0.15000 0.11000 0.0800 0.75000 / 194057 'ST5B' 2 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194057 'IEEEG3' 2 0.2000 0.0400 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.6540 0.5000 1.0000 1.500 1.000 / 194057 'PSS3B' 2 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194057 'GENSAL' 3 8.6 0.75000E-01 0.1740 4.378 0.0000 1.0600 0.67000 0.26000 0.15000 0.11000 0.0800 0.75000 / 194057 'ST5B' 3 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194057 'IEEEG3' 3 0.2000 0.0400 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.6540 0.5000 1.0000 1.500 1.000 / 194057 'PSS3B' 3 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194057 'GENSAL' 4 8.6 0.75000E-01 0.1740 4.378 0.0000 1.0600 0.67000 0.26000 0.15000 0.11000 0.0800 0.75000 / 194057 'ST5B' 4 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194057 'IEEEG3' 4 0.2000 0.0400 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.6540 0.5000 1.0000 1.500 1.000 / 194057 'PSS3B' 4 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194056 'GENSAL' 1 8.6000 0.44000E-01 0.20000 2.9100 0.0000 1.1700 0.65600 0.33000 0.25000 0.14900 0.0500 0.30000 / 194056 'ST5B' 1 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194056 'IEEEG3' 1 0.5000 0.0500 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.0000 0.5000 1.5000 1.000 1.000 / 194056 'PSS3B' 1 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194056 'GENSAL' 2 8.6000 0.44000E-01 0.20000 2.9100 0.0000 1.1700 0.65600 0.33000 0.25000 0.14900 0.0500 0.30000 / 194056 'ST5B' 2 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194056 'IEEEG3' 2 0.5000 0.0500 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.0000 0.5000 1.5000 1.000 1.000 / 194056 'PSS3B' 2 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194056 'GENSAL' 3 8.6000 0.44000E-01 0.20000 2.9100 0.0000 1.1700 0.65600 0.33000 0.25000 0.14900 0.0500 0.30000 / 194056 'ST5B' 3 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194056 'IEEEG3' 3 0.5000 0.0500 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.0000 0.5000 1.5000 1.000 1.000 / 194056 'PSS3B' 3 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194056 'GENSAL' 4 8.6000 0.44000E-01 0.20000 2.9100 0.0000 1.1700 0.65600 0.33000 0.25000 0.14900 0.0500 0.30000 / 194056 'ST5B' 4 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194056 'IEEEG3' 4 0.5000 0.0500 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.0000 0.5000 1.5000 1.000 1.000 / 194056 'PSS3B' 4 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194052 'GENCLS' 1 2.5000 0.0000 / 174445 'GENCLS' 1 2.5000 0.0000 /

--- Can any one please suggest how can I reduce oscillations at bus 174445 after recovery from 3 phase fault. i have applied 3-phase fault for 100 ms and cleared it after that the power output from this equivalent source is oscillating very high.

please help

I have an equivalent system with 5 buses. two of the buses are hydro generator buses and two are modeled as equivalent sources with given short circuit MVA as machine with GENCLS dynamic model and base MVA as per the given MVA. this was followed by the answer in one of the queries in this forum. the steady state simulation is stable and initial condition is ok, but after applying 3 phase fault one of the equivalent source modelled is not recovering after fault and there are continuous power oscillations, because of that other machines also giving oscillating power. can any one please help me how can I solve this problem. please suggest how can i share the raw and dyr files for further investigation.

---Raw Data File--- @!IC,SBASE,REV,XFRRAT,NXFRAT,BASFRQ 0, 100.00, 36, 0, 1, 50.00 / PSS(R)E Xplore-36.1 WED, MAR 04 2026 15:04

GENERAL, THRSHZ=0.0001, PQBRAK=0.7, BLOWUP=5.0, MaxIsolLvls=4, CAMaxReptSln=20, ChkDupCntLbl=0 GAUSS, ITMX=1000, ACCP=1.6, ACCQ=1.6, ACCM=1.0, TOL=0.0001 NEWTON, ITMXN=1000, ACCN=1.0, TOLN=0.1, VCTOLQ=0.1, VCTOLV=0.00001, DVLIM=0.99, NDVFCT=0.99 ADJUST, ADJTHR=0.005, ACCTAP=1.0, TAPLIM=0.05, SWVBND=100.0, MXTPSS=99, MXSWIM=10 TYSL, ITMXTY=20, ACCTY=1.0, TOLTY=0.00001 SOLVER, FNSL, ACTAPS=0, AREAIN=0, PHSHFT=0, DCTAPS=0, SWSHNT=0, FLATST=0, VARLIM=99, NONDIV=0 RATING, 1, "RATE1 ", "RATING SET 1 " RATING, 2, "RATE2 ", "RATING SET 2 " RATING, 3, "RATE3 ", "RATING SET 3 " RATING, 4, "RATE4 ", "RATING SET 4 " RATING, 5, "RATE5 ", "RATING SET 5 " RATING, 6, "RATE6 ", "RATING SET 6 " RATING, 7, "RATE7 ", "RATING SET 7 " RATING, 8, "RATE8 ", "RATING SET 8 " RATING, 9, "RATE9 ", "RATING SET 9 " RATING,10, "RATE10", "RATING SET 10 " RATING,11, "RATE11", "RATING SET 11 " RATING,12, "RATE12", "RATING SET 12 " SWDRATNAM, 1, "RATE1 ", 0, "MVA", "SWD RATING SET 1 " SWDRATNAM, 2, "RATE2 ", 0, "MVA", "SWD RATING SET 2 " SWDRATNAM, 3, "RATE3 ", 0, "MVA", "SWD RATING SET 3 " SWDRATNAM, 4, "RATE4 ", 0, "MVA", "SWD RATING SET 4 " SWDRATNAM, 5, "RATE5 ", 0, "MVA", "SWD RATING SET 5 " SWDRATNAM, 6, "RATE6 ", 0, "MVA", "SWD RATING SET 6 " SWDRATNAM, 7, "RATE7 ", 0, "MVA", "SWD RATING SET 7 " SWDRATNAM, 8, "RATE8 ", 0, "MVA", "SWD RATING SET 8 " SWDRATNAM, 9, "RATE9 ", 0, "MVA", "SWD RATING SET 9 " SWDRATNAM, 10, "RATE10", 0, "MVA", "SWD RATING SET 10 " SWDRATNAM, 11, "RATE11", 0, "MVA", "SWD RATING SET 11 " SWDRATNAM, 12, "RATE12", 0, "MVA", "SWD RATING SET 12 " 0 / END OF SYSTEM-WIDE DATA, BEGIN BUS DATA @! I,'NAME ', BASKV, IDE,AREA,ZONE,OWNER, VM, VA, NVHI, NVLO, EVHI, EVLO 174445,'MUZAFRN4 ', 400.0000,2, 72, 171, 55,1.00000, -2.6734,1.10000,0.90000,1.10000,0.90000 194001,'KANPRAYAG ', 400.0000,1, 72, 191, 1,0.99960, 0.7184,1.10000,0.90000,1.10000,0.90000 194052,'SRINAGARPT ', 400.0000,3, 72, 191, 2,1.00000, 0.0000,1.10000,0.90000,1.10000,0.90000 194054,'PIPALKOTI SW', 400.0000,1, 72, 191, 1,0.99935, 1.4211,1.10000,0.90000,1.10000,0.90000 194056,'TPVNVISHNUGD', 400.0000,2, 72, 191, 1,1.00000, 1.4576,1.10000,0.90000,1.10000,0.90000 194057,'PIPALKOTI ', 400.0000,2, 72, 191, 1,1.00000, 1.4831,1.10000,0.90000,1.10000,0.90000 0 / END OF BUS DATA, BEGIN LOAD DATA @! I,'ID',STAT,AREA,ZONE, PL, QL, IP, IQ, YP, YQ, OWNER,SCALE,INTRPT, DGENP, DGENQ,DGENF,' LOAD TYPE ', 'N A M E' 0 / END OF LOAD DATA, BEGIN FIXED SHUNT DATA @! I,'ID',STATUS, GL, BL, 'N A M E' 0 / END OF FIXED SHUNT DATA, BEGIN VOLTAGE DROOP CONTROL DATA @!'NAME', STATUS,REGBUS, QDB, QMIN, QMAX, VDBLOW,VDBHIGH, VLOW, VHIGH 0 / END OF VOLTAGE DROOP CONTROL DATA, BEGIN GENERATOR DATA @! I,'ID', PG, QG, QT, QB, VS, IREG,NREG, MBASE, ZR, ZX, RT, XT, GTAP,STAT, RMPCT, PT, PB,BASLOD,O1, F1, O2, F2, O3, F3, O4, F4,WMOD, WPF 'DROOPNAME' 'N A M E' 174445,'1 ', -150.000, 20.270, 222.000, -222.000,1.00000,174445, 0, 33113.000, 0.00000E+0, 1.00000E+0, 0.00000E+0, 0.00000E+0,1.00000,1, 100.0, 200.000, -200.000, 0, 55,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','MUZAFRN4 400.00 ' 194052,'1 ', -616.247, 72.403, 222.000, -111.000,1.00000,194052, 0, 16697.000, 0.00000E+0, 1.00000E+0, 0.00000E+0, 0.00000E+0,1.00000,1, 100.0, 500.000, -500.000, 0, 2,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','SRINAGARPT 400.00 ' 194056,'1 ', 65.000, 4.045, 65.000, -32.500,1.00000,194056, 0, 152.940, 0.00000E+0, 2.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 130.000, 0.000, 0, 1,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','TPVNVISHNUGD1 400.00 ' 194056,'2 ', 65.000, 4.045, 65.000, -32.500,1.00000,194056, 0, 152.940, 0.00000E+0, 2.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 130.000, 0.000, 0, 1,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','TPVNVISHNUGD2 400.00 ' 194056,'3 ', 65.000, 4.045, 65.000, -32.500,1.00000,194056, 0, 152.940, 0.00000E+0, 2.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 130.000, 0.000, 0, 1,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','TPVNVISHNUGD3 400.00 ' 194056,'4 ', 130.000, 8.089, 65.000, -32.500,1.00000,194056, 0, 152.940, 0.00000E+0, 2.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 130.000, 0.000, 0, 1,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','TPVNVISHNUGD4 400.00 ' 194057,'1 ', 111.000, -21.566, 55.500, -27.750,1.00000,194057, 0, 130.590, 0.00000E+0, 1.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 111.000, 0.000, 0,1954,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','PIPALKOTI1 400.00 ' 194057,'2 ', 111.000, -21.566, 55.500, -27.750,1.00000,194057, 0, 130.590, 0.00000E+0, 1.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 111.000, 0.000, 0,1954,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','PIPALKOTI2 400.00 ' 194057,'3 ', 111.000, -21.566, 55.500, -27.750,1.00000,194057, 0, 130.590, 0.00000E+0, 1.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 111.000, 0.000, 0,1954,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','PIPALKOTI3 400.00 ' 194057,'4 ', 111.000, -21.566, 55.500, -27.750,1.00000,194057, 0, 130.590, 0.00000E+0, 1.50000E-1, 0.00000E+0, 1.45000E-1,1.00000,1, 100.0, 111.000, 0.000, 0,1954,1.0000, 0, 1.0, 0, 1.0, 0, 1.0, 0, 0.000,' ','PIPALKOTI4 400.00 ' 0 / END OF GENERATOR DATA, BEGIN SWITCHING DEVICE RATING SET DATA @! 'N A M E' , 'DESCRIPTION', RATE1, RATE2, RATE3, RATE4, RATE5, RATE6, RATE7, RATE8, RATE9, RATE10, RATE11, RATE12 0 / END OF SWITCHING DEVICE RATING SET DATA, BEGIN BRANCH DATA @! I, J,'CKT', R, X, B, 'N A M E' , RATE1, RATE2, RATE3, RATE4, RATE5, RATE6, RATE7, RATE8, RATE9, RATE10, RATE11, RATE12, GI, BI, GJ, BJ,STAT,MET, LEN, O1, F1, O2, F2, O3, F3, O4, F4 174445,194054,'1 ', 4.22000E-03, 4.70000E-02,0.00000,' ', 517.00, 852.00, 852.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1,226.50, 55,1.0000 194001,194052,'1 ', 8.30000E-04, 8.85000E-03,0.00020,' ', 681.00,1714.00,1714.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1, 46.00, 1,1.0000 194001,194052,'2 ', 8.30000E-04, 8.85000E-03,0.00020,' ', 681.00,1714.00,1714.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1, 46.00, 1,1.0000 194001,194054,'1 ', 8.10000E-04, 8.65000E-03,0.00020,' ', 681.00,1714.00,1714.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1, 45.00, 1,1.0000 194001,194054,'2 ', 8.10000E-04, 8.65000E-03,0.00020,' ', 681.00,1714.00,1714.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 1, 45.00, 1,1.0000 194052,194054,'1 ', 9.70000E-04, 1.46300E-02,0.00020,' ', 695.00,1600.00,1600.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 92.00, 1,1.0000 194052,194054,'2 ', 9.70000E-04, 1.46300E-02,0.00020,' ', 695.00,1600.00,1600.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 92.00, 1,1.0000 194054,194056,'1 ', 3.72000E-04, 4.15000E-04,0.00000,' ', 560.00, 857.00, 857.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 20.00, 1,1.0000 194054,194056,'2 ', 3.72000E-04, 4.15000E-04,0.00000,' ', 500.00, 857.00, 857.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 20.00, 1,1.0000 194054,194057,'1 ', 3.72000E-04, 4.15000E-04,0.00002,' ', 560.00, 857.00, 857.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 2.00, 1,1.0000 194054,194057,'2 ', 3.72000E-04, 4.15000E-04,0.00002,' ', 560.00, 857.00, 857.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00000, 0.00000, 0.00000, 0.00000, 1, 0, 2, 2.00, 1,1.0000 0 / END OF BRANCH DATA, BEGIN SYSTEM SWITCHING DEVICE DATA @! I, J,'CKT', X, 'RATING SET NAME' , STAT,NSTAT, MET,STYPE,'NAME' 0 / END OF SYSTEM SWITCHING DEVICE DATA, BEGIN TRANSFORMER DATA @! I, J, K,'CKT',CW,CZ,CM, MAG1, MAG2,NMETR, 'N A M E', STAT,O1, F1, O2, F2, O3, F3, O4, F4, 'VECGRP', ZCOD @! R1-2, X1-2, SBASE1-2, R2-3, X2-3, SBASE2-3, R3-1, X3-1, SBASE3-1, VMSTAR, ANSTAR @!WINDV1, NOMV1, ANG1, RATE1-1, RATE1-2, RATE1-3, RATE1-4, RATE1-5, RATE1-6, RATE1-7, RATE1-8, RATE1-9,RATE1-10,RATE1-11,RATE1-12,COD1,CONT1,NOD1, RMA1, RMI1, VMA1, VMI1, NTP1,TAB1, CR1, CX1, CNXA1 @!WINDV2, NOMV2, ANG2, RATE2-1, RATE2-2, RATE2-3, RATE2-4, RATE2-5, RATE2-6, RATE2-7, RATE2-8, RATE2-9,RATE2-10,RATE2-11,RATE2-12,COD2,CONT2,NOD2, RMA2, RMI2, VMA2, VMI2, NTP2,TAB2, CR2, CX2, CNXA2 @!WINDV3, NOMV3, ANG3, RATE3-1, RATE3-2, RATE3-3, RATE3-4, RATE3-5, RATE3-6, RATE3-7, RATE3-8, RATE3-9,RATE3-10,RATE3-11,RATE3-12,COD3,CONT3,NOD3, RMA3, RMI3, VMA3, VMI3, NTP3,TAB3, CR3, CX3, CNXA3 0 / END OF TRANSFORMER DATA, BEGIN AREA DATA @! I, ISW, PDES, PTOL, 'ARNAME' 0 / END OF AREA DATA, BEGIN TWO-TERMINAL DC DATA @! 'NAME', MDC, RDC, SETVL, VSCHD, VCMOD, RCOMP, DELTI,METER DCVMIN,CCCITMX,CCCACC @! IPR,NBR, ANMXR, ANMNR, RCR, XCR, EBASR, TRR, TAPR, TMXR, TMNR, STPR, ICR,NDR, IFR, ITR,'IDR', XCAPR @! IPI,NBI, ANMXI, ANMNI, RCI, XCI, EBASI, TRI, TAPI, TMXI, TMNI, STPI, ICI,NDI, IFI, ITI,'IDI', XCAPI 0 / END OF TWO-TERMINAL DC DATA, BEGIN VSC DC LINE DATA @! 'NAME', MDC, RDC, O1, F1, O2, F2, O3, F3, O4, F4 @!IBUS,TYPE,MODE, DCSET, ACSET, ALOSS, BLOSS,MINLOSS, SMAX, IMAX, PWF, MAXQ, MINQ, VSREG,NREG, RMPCT 0 / END OF VSC DC LINE DATA, BEGIN IMPEDANCE CORRECTION DATA @!I, T1, Re(F1), Im(F1), T2, Re(F2), Im(F2), T3, Re(F3), Im(F3), T4, Re(F4), Im(F4), T5, Re(F5), Im(F5), T6, Re(F6), Im(F6) @! T7, Re(F7), Im(F7), T8, Re(F8), Im(F8), T9, Re(F9), Im(F9), T10, Re(F10),Im(F10), T11, Re(F11),Im(F11), T12, Re(F12),Im(F12) @! ... 0 / END OF IMPEDANCE CORRECTION DATA, BEGIN MULTI-TERMINAL DC DATA @! 'NAME', NCONV,NDCBS,NDCLN, MDC, VCONV, VCMOD, VCONVN @! IB, N, ANGMX, ANGMN, RC, XC, EBAS, TR, TAP, TPMX, TPMN, TSTP, SETVL, DCPF, MARG,CNVCOD @!IDC, IB,AREA,ZONE, 'DCNAME', IDC2, RGRND,OWNER @!IDC,JDC,'DCCKT',MET, RDC, LDC 0 / END OF MULTI-TERMINAL DC DATA, BEGIN MULTI-SECTION LINE DATA @! I, J,'ID',MET,DUM1, DUM2, DUM3, DUM4, DUM5, DUM6, DUM7, DUM8, DUM9 0 / END OF MULTI-SECTION LINE DATA, BEGIN ZONE DATA @! I, 'ZONAME' 0 / END OF ZONE DATA, BEGIN INTER-AREA TRANSFER DATA @!ARFROM,ARTO,'TRID',PTRAN 0 / END OF INTER-AREA TRANSFER DATA, BEGIN OWNER DATA @! I, 'OWNAME' 0 / END OF OWNER DATA, BEGIN FACTS DEVICE DATA @! 'NAME', I, J,MODE,PDES, QDES, VSET, SHMX, TRMX, VTMN, VTMX, VSMX, IMX, LINX, RMPCT,OWNER, SET1, SET2,VSREF, FCREG,NREG, 'MNAME' 0 / END OF FACTS DEVICE DATA, BEGIN SWITCHED SHUNT DATA @! I,'ID',MODSW,ADJM,ST, VSWHI, VSWLO, SWREG,NREG, RMPCT, 'RMIDNT', BINIT, 'N A M E' ,S1,N1, B1, S2,N2, B2, S3,N3, B3, S4,N4, B4, S5,N5, B5, S6,N6, B6, S7,N7, B7, S8,N8, B8 0 / END OF SWITCHED SHUNT DATA, BEGIN GNE DATA @! 'NAME', 'MODEL', NTERM,BUS1...BUSNTERM,NREAL,NINTG,NCHAR @!ST,OWNER,NMETR @! REAL1...REAL(MIN(10,NREAL)) @! INTG1...INTG(MIN(10,NINTG)) @! CHAR1...CHAR(MIN(10,NCHAR)) 0 / END OF GNE DATA, BEGIN INDUCTION MACHINE DATA @! I,'ID',ST,SC,DC,AREA,ZONE,OWNER, 'N A M E' ,TC,BC, MBASE,RATEKV,PC, PSET, H, A, B, D, E, RA, XA, XM, R1, X1, R2, X2, X3, E1, SE1, E2, SE2, IA1, IA2, XAMULT 0 / END OF INDUCTION MACHINE DATA, BEGIN LOAD TYPE DATA @! 'NAME', 'DESCRIPTION' 0 / END OF LOAD TYPE DATA, BEGIN INTERFACE DATA @! ' NAME ', I,TYPE,RATMAX1, RATMAX2, RATMAX3, RATMAX4, RATMAX5, RATMAX6 ,RATMAX7, RATMAX8, RATMAX9, RATMAX10,RATMAX11,RATMAX12,RATMIN1, RATMIN2, RATMIN3, RATMIN4, RATMIN5, RATMIN6 ,RATMIN7, RATMIN8, RATMIN9, RATMIN10,RATMIN11,RATMIN12 0 / END OF INTERFACE DATA, BEGIN INTERFACE ELEMENT DATA @! 'NAME' TYPE, IBUS, JBUS, KBUS, 'DEVNAMEID',DIRECTION, METER, WF 0 / END OF INTERFACE ELEMENT DATA, BEGIN SUBSTATION DATA 0 / END OF SUBSTATION DATA Q

------ DYR File ----------- 194057 'GENSAL' 1 8.6 0.75000E-01 0.1740 4.378 0.0000 1.0600 0.67000 0.26000 0.15000 0.11000 0.0800 0.75000 / 194057 'ST5B' 1 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194057 'IEEEG3' 1 0.2000 0.0400 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.6540 0.5000 1.0000 1.500 1.000 / 194057 'PSS3B' 1 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194057 'GENSAL' 2 8.6 0.75000E-01 0.1740 4.378 0.0000 1.0600 0.67000 0.26000 0.15000 0.11000 0.0800 0.75000 / 194057 'ST5B' 2 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194057 'IEEEG3' 2 0.2000 0.0400 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.6540 0.5000 1.0000 1.500 1.000 / 194057 'PSS3B' 2 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194057 'GENSAL' 3 8.6 0.75000E-01 0.1740 4.378 0.0000 1.0600 0.67000 0.26000 0.15000 0.11000 0.0800 0.75000 / 194057 'ST5B' 3 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194057 'IEEEG3' 3 0.2000 0.0400 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.6540 0.5000 1.0000 1.500 1.000 / 194057 'PSS3B' 3 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194057 'GENSAL' 4 8.6 0.75000E-01 0.1740 4.378 0.0000 1.0600 0.67000 0.26000 0.15000 0.11000 0.0800 0.75000 / 194057 'ST5B' 4 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194057 'IEEEG3' 4 0.2000 0.0400 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.6540 0.5000 1.0000 1.500 1.000 / 194057 'PSS3B' 4 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194056 'GENSAL' 1 8.6000 0.44000E-01 0.20000 2.9100 0.0000 1.1700 0.65600 0.33000 0.25000 0.14900 0.0500 0.30000 / 194056 'ST5B' 1 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194056 'IEEEG3' 1 0.5000 0.0500 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.0000 0.5000 1.5000 1.000 1.000 / 194056 'PSS3B' 1 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194056 'GENSAL' 2 8.6000 0.44000E-01 0.20000 2.9100 0.0000 1.1700 0.65600 0.33000 0.25000 0.14900 0.0500 0.30000 / 194056 'ST5B' 2 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194056 'IEEEG3' 2 0.5000 0.0500 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.0000 0.5000 1.5000 1.000 1.000 / 194056 'PSS3B' 2 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194056 'GENSAL' 3 8.6000 0.44000E-01 0.20000 2.9100 0.0000 1.1700 0.65600 0.33000 0.25000 0.14900 0.0500 0.30000 / 194056 'ST5B' 3 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194056 'IEEEG3' 3 0.5000 0.0500 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.0000 0.5000 1.5000 1.000 1.000 / 194056 'PSS3B' 3 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194056 'GENSAL' 4 8.6000 0.44000E-01 0.20000 2.9100 0.0000 1.1700 0.65600 0.33000 0.25000 0.14900 0.0500 0.30000 / 194056 'ST5B' 4 0.0200 0.0200 0.0138 1.0 3.6300 200.00 4.3900 -4.3900 0.003 0.0800 0 0 0 0 0 0 0 0 / 194056 'IEEEG3' 4 0.5000 0.0500 0.300 -0.300 1.0000 0.0000 0.0400 1.000 40.00 1.0000 0.5000 1.5000 1.000 1.000 / 194056 'PSS3B' 4 3 0 1 0 0.3000 0.0200 1.5000 0.100 0.020 1.5000 1.5000 10.000 10.00 10.00 10.000 10.000 10.000 10.00 10.00 0.2000 -0.2000 / 194052 'GENCLS' 1 2.5000 0.0000 / 174445 'GENCLS' 1 2.5000 0.0000 /

--- Can any one please suggest how can I reduce oscillations at bus 174445 after recovery from 3 phase fault. i have applied 3-phase fault for 100 ms and cleared it after that the power output from this equivalent source is oscillating very high.

please help