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2019-01-31 08:41:04 -0500 commented answer How to simulate secondary frequency control in pss/e

Hi Yunzhi, Thank you for your reply. Your suggestion sounds good, really appreciate that! Cheers! Yuchuan (Gary)

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2019-01-24 05:03:22 -0500 commented answer How to mimic the stochastic of wind power in dynamic simulation

Hi SqFKYo, thank you for your patiently reply, yes I want to do the former. In addition, to study the dynamic behaviour of wind power plants in different output scenarios in pss/e, , is this reasonable to set a 100MW-rated wind power plants in different output scenarios before apply a fault?

2019-01-23 09:25:24 -0500 commented answer How to mimic the stochastic of wind power in dynamic simulation

Hi SqFKYo, thank you for that. But I think there might be a difference between the two questions; I didn't find the way to change the govern reference of wind power plant.

2019-01-23 06:49:01 -0500 commented question How to mimic the stochastic of wind power in dynamic simulation

Hi gajendra, you can find it by searching the question "Renewable Plant Modeling - Solar PV - Wind", which is provided by jconto, from which you can learn how to model the renewable plants; and you can replace more conventional generators by wind power to increase the penetration.

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2019-01-22 12:32:30 -0500 asked a question How to mimic the stochastic of wind power in dynamic simulation

Hi,

Thanks for coming to see my question. I updated my question. sorry for the ambiguity.

I am doing dynamic simulations with wind power penetration. I tried to mimic the stochastic behaviour of wind power plants, so I need to set different output scenarios in tons of cases for a wind farm with fixed capacity (i.e., a 100 MW wind power plant may not always produce the rated power since the wind velocity is stochastic, for example, when the wind is weak, the 100MW-rated wind farm might only generate 20 MW, and increases with the wind velocity.....)

I not sure how to simulate this behavior of wind power in pss/e, because it seems that the wind power model in pss/e is designed for simulating the wind farm working at around 100% of its rated power?

Thank you for your help.

Gary

-----------below is the original question-------------------

Hi,

Thanks for coming to see my question.

I am doing dynamic simulations in a case with high wind power penetration. I tried to mimic the stochastic behaviour of wind power plants, i.e., for example, a wind power plant whose capacity is 100 MW may not always produce the rated power since the wind velocity is changing from time to time. Unfortunately, I don't know how to do it in pss/e.

Can you please let me know is there any method to do it in pss/e?

Any help would be appreciated.

cheers, Gary

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2019-01-21 11:54:42 -0500 commented answer How to simulate secondary frequency control in pss/e

Hi Perolofl, Thank you for your guidance, let me have a try! Gary

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2019-01-21 09:56:36 -0500 asked a question How to simulate secondary frequency control in pss/e

Hi,

Thank you for looking my question.

I used some cases which equipped with governs and have carried out some simulations. I observed that the after disconnecting the load/generator, the frequency response in my case is the result of the inertial response and preliminary control, since the frequency never goes back to the initial value and stay at somewhere else.

How can I simulate the secondary frequency control in pss/e, to increase the output of synchronous generators reasonably then make the frequency go back to the initial value?

sorry to ask the basic question. Any help would be appreciated.

Thanks, Gary

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2018-10-12 16:54:52 -0500 commented answer what's the difference between using REGCAU1 series and WT3G(WT4G) series ?

Thank you, I found the file you mentioned, it's really helpful

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2018-10-10 14:37:15 -0500 asked a question what's the difference between using REGCAU1 series and WT3G(WT4G) series ?

Hi everyone,

I am wondering that what's the difference between using REGCAU1 series and WT3G(WT4G) series at the modeling of Type 3(Type 4) wind turbines?

I check some files like models.pdf and know that there are some differences in control blocks, but I am wondering the detail of the difference, why there are two series in PSS/E that can be used as Type 3(Type 4) wind turbines?

any comments would be appreciated!

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2018-09-18 11:13:52 -0500 commented answer why we need to perform TYSL before running dynamic simulation?

Thank you so much for your guidances!

2018-09-17 21:32:54 -0500 answered a question Renewable Plant Modeling - Solar PV - Wind

Thank you for sharing this! All the best.

2018-09-17 21:30:10 -0500 asked a question why we need to perform TYSL before running dynamic simulation?

Dear everyone,

I have a question regarding the API: TYSL. As we know we need to perform CONG, CONL, ORDR, FACT, TYSL, etc.,prior to running the transient stability program. What makes me confused is what is the purpose of performing TYSL? The help documents said "Use this API to run switching study network solutions", but I still confused.

Thank you all in advance!

Gary

2018-09-03 21:50:25 -0500 commented answer Does Python 3.6 can work with psse

Good to know that! Thank you, Mr Conto.

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2018-09-03 11:48:35 -0500 commented answer Does Python 3.6 can work with psse

Thank you jfconroy, yes now in my experience, only v2.X, 32 bit of Python can work with PSSe API.

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2018-08-23 18:59:53 -0500 asked a question Does Python 3.6 can work with psse

Dear everyone,

I know PSSe33 was built as a 32-bit application. and python2.7 of 32-bit works fine with PSSe33.04 in my work.

Does anyone know can PSSe work with python 3.6 of 32-bit? I tried but failed, the problem first happened at "import psspy", and the console indicates "bad magic number in psspy..."

Maybe there are problems in my settings, or there are restrictions in PSSe version?

And I also failed to make python of 64-bit (either 3.6 or 2.7) work with PSSe.

Thanks in advance!

Gary

2018-07-10 16:25:10 -0500 asked a question How to close the OPF output using APIļ¼Ÿ

Hello everyone,

I am solving the OPF before each dynamic simulation by API, but there is too much text output in my IDE window, which slow down the simulation speed.

Does anyone know how to close the OPF output?

Any help is much appreciated!

Gary

2018-07-10 16:18:10 -0500 answered a question How to include active power as control variable in OPF for loss reduction in GUI ?

Hi, in GUI, you can click OPF on the menu bar, then 'parameters', then check the "Minimize active power loss", finally, click ok.

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2018-03-19 13:25:07 -0500 asked a question What's the unit of reactive power that generated from WT3G2 (Type3 wind machien)?

Hello everyone,

I've been doing dynamic simulations in my case in which DFIGs wind farms are integrated.

In my mind, in PSS/E, the unit of the power output from generators should be p.u. on SBASE (100MW).

What makes me confused is, during dynamic simulations, the maximum reactive power output of DFIG wind farms remains at around 0.6, no matter how much the installed capacities of the DFIGs wind farms are (e.g., 100MW, 200MW or 500WM, these values are also the power outputs of DFIG wind farms in each power flow case).

I think the maximum reactive power output of DFIG wind farms would be affected as the capacities of the DFIGs wind farms increase, and if the DFIG wind farms are under reactive power control (for instance, setting VARFLG=1 in WT3G2 model ), the DFIGs would output their maximum reactive power during the fault to provide support for voltage recovery.

If you are interested, my simulation files are attached on https://drive.google.com/drive/folder..., in which the capacities of each wind farms are 100wm and modifiable.

Any help will be appreciated!

Thanks, Gary

2018-03-19 12:08:42 -0500 answered a question Slow Initialisation Time PSSE V34

I also have the same experience, early V34 of PSSE seems works much slower than V33 so I go back to the latter one. I am not sure if it's due to the updated functions slow down the simulation...

Anyway, I think V34.3.1, V33.4 and V33.6 are good choices.

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