| Issue |
E3S Web Conf.
Volume 252, 2021
2021 International Conference on Power Grid System and Green Energy (PGSGE 2021)
|
|
|---|---|---|
| Article Number | 02001 | |
| Number of page(s) | 5 | |
| Section | Research and Development of Electrical Equipment and Energy Nuclear Power Devices | |
| DOI | https://doi.org/10.1051/e3sconf/202125202001 | |
| Published online | 23 April 2021 | |
Research on improving low frequency oscillation characteristics of wind power system with DFIG-PSS-VI
College of Electric and Information Engineering Zhengzhou University of Light Industry, Zhengzhou, Henan China
* Corresponding author:
a hplkz@126.com
b 314764631@qq.com
The new energy represented by strong random wind power connecting to the power system may make the problem of inter-area low-frequency oscillation more serious. In this paper, a DFIG-PSS controller based on virtual impedance is constructed to solve the low-frequency oscillation problem in the wind power system. The step response of PSS-VI was carried out to test the effect of the controller to verify the advantages of PSS-VI than traditional PSS. The input signal of PSS-VI which is a controller based on PSS installed virtual impedance is the active power of DFIG. The output signal of PSS-VI is added to the reactive power control loop of rotor side controller of DFIG. DFIG-PSS-VI was built in Digsilent/Powerfactory software, and the simulation was carried out on the system of 4 machines and 2 regions. It is verified that PSS-VI can improve the low-frequency oscillation of wind power system.
© The Authors, published by EDP Sciences, 2021
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