yun's profile - activity

overview network karma followed questions activity

2021-04-19 01:53:59 -0500	received badge	● Famous Question (source)
2021-04-08 03:02:46 -0500	received badge	● Enthusiast
2021-04-04 19:49:03 -0500	received badge	● Editor (source)
2021-04-04 19:47:49 -0500	answered a question	voltage rise check due to renewable power (Pgen) increase in psse 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 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 or 0.95), schedule voltage (1 or 1.04pu)
2021-04-04 19:24:08 -0500	commented question	voltage rise check due to renewable power (Pgen) increase in psse Thank you for your reply. I use; 1. +-Q limits based on WPF mode. 2. Power factor: 0.95 3. scheduled voltage: 1 anyway what i want to see in pss/e is that; bus voltage should rise when I increase active power from RE plant.
2021-04-04 19:13:10 -0500	commented answer	voltage rise check due to renewable power (Pgen) increase in psse Thank you for your reply. please refer to the below.
2021-04-04 19:05:46 -0500	received badge	● Notable Question (source)
2021-04-02 20:10:48 -0500	received badge	● Popular Question (source)
2021-04-01 03:28:09 -0500	asked a question	voltage rise check due to renewable power (Pgen) increase in psse Hello. I am trying to verify power network's voltage rise from increasing renewable power such as wind, solar, etc in PSS/E. I am checking only sav file in PSS/E, since I don't need dynamic simulation with (reec+repc+regc). It is apparent that voltage will rise when RE generation is increased. (Now this is one of the biggest problem in power network in my area.) But although I increase RE generation (Pgen) in PSS/E, it shows that voltage is decreased after power flow analysis. The problem is that; when I increase Pgen of RE generator, it absorbs more reactive power from power network after P/F analysis. If I increase Pgen from RE Generator, it absorbs more and voltage is decreased more. This is not actual situation, and I doubt which part I should check. It will be helpful if you give me a advice. Thank you in advance. http://staic simulation (image description)
2021-03-31 03:32:36 -0500	asked a question	how can make a model for renewable energy in pss/e to verify voltage rise? Hello. I am trying to verify power network's voltage rise from increasing renewable power such as wind, solar, etc in PSS/E. I am checking only sav file in PSS/E, since I don't need dynamic simulation with (reec+repc+regc). It is apparent that voltage will rise when RE generation is increased. (Now this is one of the biggest problem in power network in my area.) But although I increase RE generation (Pgen) in PSS/E, it shows that voltage is decreased after power flow analysis. The problem is that; when I increase Pgen of RE generator, it absorbs more reactive power from power network after P/F analysis. If I increase Pgen from RE Generator, it absorbs more and voltage is decreased more. This is not actual situation, and I doubt which part I should check. It will be helpful if you give me a advice. Thank you in advance.