Ask Your Question
0

REPCA compensation

asked Aug 13 '1

pff gravatar image

If between POI (bus 1000) where you are regulating and measurement point (bus 5), there is a interconnection line, should REPCA model filled as follow? 5 Remote bus number or 0 for local voltage control 5 Monitored branch FROM bus 1000 Monitored branch TO bus '1' Monitored branch ID (enter within single quotes) 0 VCFlag, droop flag (0: with droop,1: line drop compensation) 1 RefFlag, flag for V or Q control(0: Q control, 1: V control) 1 Fflag, 0: disable frequency control, 1: enable

Altough your regulating point is 1000, you only have measurement feedback from 5.

Is Rc, Xc and Kc used to compensate the differenve between points? I see it exist for V but not for Q control. Maybe I understand wrongly for what Rc, Xc and Kc are implemented.

Should these values modified from thegiven by the manufacturer based on plant characteristics?

Thanks in advance

2 answers

Sort by » oldest newest most voted
0

answered Aug 16 '1

perolofl gravatar image

As I understand it you are measuring the voltage at bus 5 and want to control the voltage at bus 1000.

Select RefFlag = 1 and VCFlag = 1. Rc and Xc shall be the impedance of the line (in pu system base) between bus 5 and bus 1000. Note, Kc is not used here.

link

Comments

But in REPCA model: A) ICONS: M=1000, M+1=1000, M+2=5 B) ICONS: M=5, M+1=5, M+2=1000 Which option a) or b) should be modelled?

pff gravatar imagepff (Sep 22 '1)
0

answered Aug 16 '1

pff gravatar image

updated Aug 16 '1

Thanks. So, everything should be referred to the measurement point and Rc and Xc adjusted to compensate. When should kc be used? What is the use of kc?

Other doubt is that Rc and Xc are available for voltage control but not for Q control.

link

Comments

Kc is only used in voltage control if you want to compensate the measured voltage with the branch reactive power flow.

perolofl gravatar imageperolofl (Aug 16 '1)

If measurement point is the same that the regulation point, should VCFlag=1 and Rc=Xc=0? Or Vcflag=0 and kc=0?

pff gravatar imagepff (Aug 18 '1)

It doesn't matter. In both cases the measured voltage will be used.

perolofl gravatar imageperolofl (Aug 19 '1)

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.
Want to format code in your answer? Here is a one minute demo on Youtube

Add Answer

[hide preview]

Question Tools

2 followers

Stats

Asked: Aug 13 '1

Seen: 424 times

Last updated: Aug 16 '21