How detailed is the power converter modeled in OpenFAST?

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Jiuyang.Zhou
Posts: 2
Joined: Thu Feb 27, 2020 1:42 am
Organization: National Tsing Hua University
Location: Taiwan

How detailed is the power converter modeled in OpenFAST?

Postby Jiuyang.Zhou » Thu Feb 27, 2020 7:33 am

Dear all

I am a PhD student majoring in power electronics. Our laboratory has a lot of research on the design and operation of wind power converters.

We are new to this open source simulator and are still evaluating the feasibility of using OpenFAST for our research. Since our research is mainly focused on the power converter, we wonder how is the "Control and electrical system (servo) model" established?

What is the topology of the power converter, is it DFIG or back-to-back converters. Is the converter topology described in the simulator?

Is the converter modeled with detailed structures, e.g. power switches with pulse-width modulation method.

Or are there any files that we can refer to for more detials about these questions.

Thanks!

Jason.Jonkman
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Joined: Thu Nov 03, 2005 4:38 pm
Location: Boulder, CO
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Re: How detailed is the power converter modeled in OpenFAST?

Postby Jason.Jonkman » Thu Feb 27, 2020 9:04 am

Dear Jiuyang.Zhou,

The simple built in generator and variable-speed control models within OpenFAST are quite simple...being able to calculate the generator torque, but not modeling the power conversion in any detail.

However, OpenFAST has been interfaced with, e.g., MATLAB/SImulink, where detailed models, e.g. DFIG, have been implemented. The following paper is likely of interest to you: https://www.nrel.gov/docs/fy14osti/59195.pdf.

Best regards,
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)

National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov

Jiuyang.Zhou
Posts: 2
Joined: Thu Feb 27, 2020 1:42 am
Organization: National Tsing Hua University
Location: Taiwan

Re: How detailed is the power converter modeled in OpenFAST?

Postby Jiuyang.Zhou » Thu Feb 27, 2020 7:27 pm

Hi Jason

Thanks a lot for your kind reply and it's really helpful, I will check this paper.

Best regards,
Jiuyang Zhou


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