基于惯量响应的双馈风电机组动态协调机理研究

doi:10.11930/j.issn.1004-9649.202108078

中国电力 ›› 2022, Vol. 55 ›› Issue (7): 142-151.DOI: 10.11930/j.issn.1004-9649.202108078

基于惯量响应的双馈风电机组动态协调机理研究

刘櫂芮¹, 贾祺¹, 严干贵¹, 翟文超¹, 孙勇², 李宝聚²

1. 现代电力系统仿真控制与绿色电能新技术教育部重点实验室（东北电力大学），吉林吉林 132012;
2. 国网吉林省电力有限公司，吉林长春 130021

收稿日期:2021-08-22 修回日期:2022-04-27 出版日期:2022-07-28 发布日期:2022-07-20
作者简介:刘櫂芮（1997—），男，硕士研究生，从事大规模新能源联网系统电网频率调节控制技术研究，E-mail：18704537350@163.com;贾祺（1991—），男，通信作者，博士，从事新能源联网运行控制与稳定性分析研究，E-mail：15948692960@163.com;严干贵（1971—），男，博士，教授，博士生导师，从事新能源发电运行控制、大规模储能技术和电力系统稳定与控制技术研究，E-mail：yyangui@neepu.edu.cn
基金资助:
吉林省电网公司科技项目（典型场景下高比例可再生能源电网调频需求及风电调频可行性评估，2020-38）。

Dynamic Coordination Mechanism of DFIGs Based on Inertia Response

LIU Zhaorui¹, JIA Qi¹, YAN Gangui¹, ZHAI Wenchao¹, SUN Yong², LI Baoju²

1. Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology Ministry of Education (Northeast Electric Power University), Jilin 132012, China;
2. State Grid Jilinsheng Electric Power Supply Company, Changchun 130021, China

Received:2021-08-22 Revised:2022-04-27 Online:2022-07-28 Published:2022-07-20
Supported by:
This work is supported by Science and Technology Project of State Grid Jilinsheng Electric Power Supply Company (Frequency Regulation Demand of High Proportion Renewable Energy Grid and Feasibility Evaluation of Wind Power Frequency Regulation Under Typical Scenarios, No.2020-38).

摘要/Abstract

摘要： 大规模风力发电联网挤占了具有转动惯量的同步发电机组容量空间，削弱了电力系统惯量水平与调频能力，迫切需要风力发电参与系统频率调节。基于双馈风电机组频率响应模型，解析得到惯量表达式，并分析锁相环控制参数对双馈风电机组惯量特性影响，提出当系统发生不平衡功率扰动时，可通过优化锁相环控制参数实现双馈风电机组惯量响应。以2台双馈风电机组并联系统为例，分析惯量响应期间不平衡功率在各双馈风电机组间的分配规律，并拓展到多机并联系统。建立双馈风电机组、同步机组联网系统频率响应模型，分析系统发生功率扰动各阶段频率响应特性。最后，通过时域仿真验证了理论分析的有效性。

关键词: 风力发电, 不平衡功率, 频率响应, 锁相环, 惯量特性

Abstract: Large-scale wind power integration occupies the capacity space of synchronous generators with moments of inertia and weakens the inertia level and frequency regulation ability of the power system. Therefore, the participation of wind power generation in system frequency regulation is urgently needed. On the basis of the frequency response model of the doubly-fed induction generator (DFIG), an inertia expression is obtained analytically, and the influence of phase-locked loop (PLL) control parameters on the inertia characteristics of DFIG is analyzed. It is then concluded that the inertia response of DFIG can be achieved by optimizing PLL control parameters when unbalanced power disturbance occurs in the system. With a parallel system of two DFIGs as an example, the law of unbalanced power distribution between the DFIGs during inertia response is analyzed and extended to multi-machine parallel systems. A frequency response model of a system of integrated DFIGs and synchronous generators is built, and the frequency response characteristics in each stage of power disturbance are analyzed. Finally, the effectiveness of the theoretical analysis is verified by time-domain simulation.

Key words: wind power generation, unbalanced power, frequency response, phase-locked loop, inertia characteristics

刘櫂芮, 贾祺, 严干贵, 翟文超, 孙勇, 李宝聚. 基于惯量响应的双馈风电机组动态协调机理研究[J]. 中国电力, 2022, 55(7): 142-151.

LIU Zhaorui, JIA Qi, YAN Gangui, ZHAI Wenchao, SUN Yong, LI Baoju. Dynamic Coordination Mechanism of DFIGs Based on Inertia Response[J]. Electric Power, 2022, 55(7): 142-151.

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基于惯量响应的双馈风电机组动态协调机理研究

Dynamic Coordination Mechanism of DFIGs Based on Inertia Response

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Dynamic Coordination Mechanism of DFIGs Based on Inertia Response

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