附加频率控制双馈风电场频率响应特性建模与参数辨识

doi:10.19595/j.cnki.1000-6753.tces.210117

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Abstract With the increasing penetration of wind power into power system, wind turbines participating in frequency regulation has become a consensus for wind power consumption. In order to realize the efficient and accurate analysis of frequency response characteristic in power system with high proportion wind power, the paper firstly establishes the double input(the wind speed and frequency) and single output(the grid-connected power) frequency response model of doubly-fed induction generator (DFIG). Then by using Routh approximation method, the fourth-order and second-order reduction models of DFIG frequency response are sequentially derived. Furthermore, to satisfy the need of building the frequency response model for doubly-fed wind farm, a parameter identification algorithm for the frequency response characteristics of doubly-fed wind farm is designed by combining matrix pencil method and least square method. Finally, the test results based on the DFIG grid-connected system demonstrate the accuracy of the derived frequency response reduce-order model. The effectiveness of parameter identification method is verified by comparing the electromagnetic transient simulation results of MATLAB/Simulink in DFIG grid-connected system and modified IEEE 30 node system with wind farm.

Key words： Doubly-fed wind farm additional frequency control frequency response model reduction-order parameters identification

Received: 22 January 2021

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TM614

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	Chen Pengwei
	Qi Chenchen
	Chen Xin
	Chen Jie
	Li Zhaohui

Cite this article:

Chen Pengwei,Qi Chenchen,Chen Xin等. Frequency Response Modeling and Parameter Identification of Doubly-Fed Wind Farm with Additional Frequency Control[J]. Transactions of China Electrotechnical Society, 2021, 36(15): 3293-3307.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210117 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I15/3293

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