虚拟同步风电场协同光伏电站附加阻尼控制方法

doi:10.11930/j.issn.1004-9649.202011043

中国电力 ›› 2022, Vol. 55 ›› Issue (3): 177-186.DOI: 10.11930/j.issn.1004-9649.202011043

虚拟同步风电场协同光伏电站附加阻尼控制方法

盛师贤¹, 周鑫², 王德林¹, 廖佳思¹, 李婧祺¹, 康积涛¹

1. 西南交通大学电气工程学院, 四川成都 611756;
2. 云南电网有限责任公司电力科学研究院, 云南昆明 650217

收稿日期:2020-11-11 修回日期:2021-10-12 出版日期:2022-03-28 发布日期:2022-03-29
作者简介:盛师贤(1995—)，男，硕士研究生，从事新能源并网、低频振荡等研究，E-mail：1373591113@qq.com;周鑫(1984—)，男，硕士，工程师，从事频率稳定与控制、网源协调等研究，E-mail：zhouxin8421@126.com;王德林(1970—)，男，博士，博士生导师，教授，从事电力系统机电动态、扰动传播、频率稳定与控制、风力发电等研究，E-mail：dlwang@swjtu.cn
基金资助:
云南电网有限责任公司科技项目(056200KK52180067)；国家自然科学基金资助项目(51477143)。

Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations

SHENG Shixian¹, ZHOU Xin², WANG Delin¹, LIAO Jiasi¹, LI Jingqi¹, KANG Jitao¹

1. School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China;
2. Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China

Received:2020-11-11 Revised:2021-10-12 Online:2022-03-28 Published:2022-03-29
Supported by:
This work is supported by Science and Technology Project of Yunnan Power Grid Co., Ltd. (No.056200KK52180067) and National Natural Science Foundation of China (No.51477143).

摘要/Abstract

摘要： 迅速增长的新能源并网容量可能会导致电力系统的低频振荡现象，以风电和光伏为主的新能源机组应具备抑制低频振荡的能力。以含风电场和光伏电站的系统为研究对象，阐明双馈风机（doubly fed induction generator, DFIG）虚拟同步控制和附加阻尼控制增加系统阻尼的原理，以DFIG并网点处有功功率变化量为输入，分别在虚拟同步风电场有功控制环和光伏电站控制器上设计附加阻尼控制器。然后，根据DFIG运行区域，设计两者的协同控制策略。当DFIG运行在转速恒定区时，考虑到风机变桨距控制响应速度慢、抑制振荡效果不理想的特点，使DFIG不再参与附加阻尼控制，而是控制光伏电站输出额外的附加功率来弥补DFIG的不足。最后，建立包含风电场和光伏电站的仿真系统，通过Prony分析和时域仿真验证该协同控制方法的有效性和正确性。

关键词: 虚拟同步风电场, 光伏电站, 附加阻尼控制, 低频振荡

Abstract: The rapidly growing grid-connected capacity of new energy units may cause low-frequency oscillations in the power system, and thus new energy units based on wind power and photovoltaic (PV) should have the ability to restrain low-frequency oscillations. This paper takes the system including wind farm and PV power stations as the research object and clarifies the principle of virtual synchronous generator (VSG) control and additional damping control for doubly-fed induction generator (DFIG) to increase system damping. With the change of active power at the grid-connection point of DFIG as input, additional damping controllers are designed on the active power control loop of the VSG wind farm and the controller of PV power stations respectively. Then, the cooperative control strategies are designed according to the operating areas of DFIG. When DFIG is operating in the constant speed zone, considering the slow response speed of the pitch control and the unsatisfactory effect of suppressing oscillations, DFIG no longer participates in the additional damping control, and the PV power station outputs additional power to compensate the shortcomings of DFIG. Finally, a simulation system including wind farm and PV power stations is established, and the effectiveness and correctness of the cooperative control method are verified through Prony analysis and time-domain simulation verification.

Key words: virtual synchronous wind farm, PV power stations, additional damping control, low-frequency oscillation

盛师贤, 周鑫, 王德林, 廖佳思, 李婧祺, 康积涛. 虚拟同步风电场协同光伏电站附加阻尼控制方法[J]. 中国电力, 2022, 55(3): 177-186.

SHENG Shixian, ZHOU Xin, WANG Delin, LIAO Jiasi, LI Jingqi, KANG Jitao. Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations[J]. Electric Power, 2022, 55(3): 177-186.

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https://www.electricpower.com.cn/CN/Y2022/V55/I3/177

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虚拟同步风电场协同光伏电站附加阻尼控制方法

Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations

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虚拟同步风电场协同光伏电站附加阻尼控制方法

Additional Damping Cooperative Control Method of Virtual Synchronous Wind Farm and Photovoltaic Power Stations

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