基于虚拟惯量和频率下垂控制的双馈风电机组一次调频策略

doi:10.19595/j.cnki.1000-6753.tces.L70681

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摘要针对双馈风电机组（DFIGs）不具备调频控制能力的问题,设计DFIG一次调频控制策略,实现了DFIG参与电网一次调频。研究DFIG功率控制原理和频率响应过程,并考虑虚拟惯量、频率下垂控制对应的响应时间尺度不同,提出基于虚拟惯量和频率下垂控制的DFIG一次调频策略,增强了DFIG应对频率变化时的暂态和稳态功率调节能力。基于RT-LAB软件搭建了DFIG频率响应控制的半实物仿真平台,仿真与实测结果验证了该方法能够有效提高DFIG电网频率适应性。

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	张冠锋
	杨俊友
	孙峰
	戈阳阳
	邢作霞

关键词 ：双馈风电机组, 一次调频, 频率响应, 虚拟惯量, 下垂控制, RT-LAB

Abstract：A doubly-fed induction generator (DFIG) primary frequency control strategy was designed for the problem that DFIG does not have the ability of frequency regulation, to achieve participation in primary frequency process of the grid. The power control principle and frequency response process of DFIG were analyzed. Considering different response time scales of virtual inertia and primary frequency regulation, a DFIG primary frequency regulation strategy was proposed based on virtual inertia and frequency droop control, which could improve the transient and steady-state power regulation abilities of DFIG to response the frequency change. DFIG frequency response control semi-physical simulation platform was built in RT-LAB simulation software. The simulation and experimental results show that the proposed method effectively improves the DFIG grid frequency adaptability.

Key words： Doubly-fed induction generators (DFIGs), primary frequency regulation, frequency response, virtual inertia, droop control, RT-LAB

收稿日期: 2016-08-20 出版日期: 2017-12-05

PACS:

TM614

基金资助:国家能源应用技术研究及工程示范项目（NY20150303）和沈阳市科学技术项目（F16-093-1-00）资助

通讯作者: 杨俊友男,1963年生,教授,博士生导师,研究方向为新能源发电技术、特种电机及其控制等。E-mail: junyouyang@sut.edu.cn。

作者简介: 张冠锋男,1986年生,博士研究生,研究方向为新能源并网技术。E-mail: zguanf@126.com。

引用本文:

张冠锋, 杨俊友, 孙峰, 戈阳阳, 邢作霞. 基于虚拟惯量和频率下垂控制的双馈风电机组一次调频策略[J]. 电工技术学报, 2017, 32(22): 225-232. Zhang Guanfeng, Yang Junyou, Sun Feng, Ge Yangyang, Xing Zuoxia. Primary Frequency Regulation Strategy of DFIG Based on Virtual Inertia and Frequency Droop Control. Transactions of China Electrotechnical Society, 2017, 32(22): 225-232.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.L70681 https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I22/225

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