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Thank you for your reply. In my understanding, voltage will rise due to reverse active power from renewable power plant (PV, WT, etc), not due to reactive power from RE. SO what I want to do is that; I want to see voltage rise when increasing Pgen from RE plant regardless of reactive power from RE.

But in PSS/E, when I put more RE plant, it absorbs or supplies more reactive power, and when reactive power is consumed at RE plant, voltage is of course dropped, which is not my expectation. Anyway the following is my test condition for RE; 1. common condition: q Limits based on WPF 2. changing condition: PF(1/0.95), schedule voltage (1/1.04pu) 3. result 1) PF=1: reactive power=0, when I increase Pgen from RE, regardless of active power, it does not supply or absorb reacitve power of course. But the bus voltage is decreased more. This is very strange to me, since voltage should be increased when I increase RE active power, As i mentioned, voltage rise is due to reverse active power from RE, not from reactive power.

Thank you for your reply. In my understanding, voltage will rise due to reverse active power from renewable power plant (PV, WT, etc), not due to reactive power from RE. SO what I want to do is that; I want to see voltage rise when increasing Pgen from RE plant plant, regardless of reactive power from RE.

But in PSS/E, when I put more RE plant, it absorbs or supplies more reactive power, and when reactive power is consumed at RE plant, voltage is of course dropped, which is not my expectation. Anyway the following is my test condition for RE; 1. common condition: q Limits based on WPF 2. changing condition: PF(1/0.95), schedule voltage (1/1.04pu) 3. result 1) PF=1: reactive power=0, when I increase Pgen from RE, regardless of active power, it does not supply or absorb reacitve power of course. But the bus voltage is decreased more. This is very strange to me, since voltage should be increased when I increase RE active power, As i mentioned, voltage rise is due to reverse active power from RE, not from reactive power.

Thank you for your reply. In my understanding, voltage will rise due to reverse active power from renewable power plant (PV, WT, etc), not due to reactive power from RE. SO what I want to do is that; I want to see voltage rise when increasing Pgen from RE plant, regardless of reactive power from RE.

But in PSS/E, when I put more RE plant, Pgen, it absorbs or supplies more reactive power, and when reactive power is consumed at RE plant, voltage is of course dropped, which is not matched with my expectation. In addition, when I set Pf=1, it does not generate or absorb any reactive power, but bus voltage is also dropped with increased Pgen. ( When I set Pf=1 and increase Pgen from RE, step-up TR consumes more reactive power and it absorbs those from power network) Anyway the following is my test condition for RE; 1. common condition: q Limits based on WPF 2. changing condition: PF(1/0.95), PF(1 or 0.95), schedule voltage (1/1.04pu) 3. result 1) PF=1: reactive power=0, when I increase Pgen from RE, regardless of active power, it does not supply (1 or absorb reacitve power of course. But the bus voltage is decreased more. This is very strange to me, since voltage should be increased when I increase RE active power, As i mentioned, voltage rise is due to reverse active power from RE, not from reactive power.1.04pu)