静止无功发生器谐波模型及其对谐振影响分析

doi:10.11930/j.issn.1004-9649.202203061

中国电力 ›› 2022, Vol. 55 ›› Issue (9): 174-182.DOI: 10.11930/j.issn.1004-9649.202203061

静止无功发生器谐波模型及其对谐振影响分析

刘可¹, 王轩¹, 王杨², 王昕³, 杨放南⁴, 李剑武⁴, 刘冬平⁵, 郭财⁵, 张启晟⁵, 陈海盟²

1. 国网青海省电力公司电力科学研究院，青海西宁 810008;
2. 四川大学电气工程学院，四川成都 610065;
3. 深圳市中电电力技术股份有限公司，广东深圳 518000;
4. 国网青海省电力公司，青海西宁 810008;
5. 国网青海省电力公司检修公司，青海西宁 810008

收稿日期:2022-03-21 修回日期:2022-06-08 发布日期:2022-09-20
作者简介:刘可（1988—），男，工程师，从事电压管理与电能质量监测研究，E-mail：1king01@126.com;王杨（1990—），男，通信作者，博士，研究员，博士生导师，从事电能质量、新能源并网、电力系统广域监测与控制技术研究，E-mail ：fwang@scu.edu.cn
基金资助:
国网青海省电力公司科技项目(青海电网典型变电站35(10)kV不接地系统谐振分析及排除技术研究与应用, 52280720002Q)；国家自然科学基金资助项目(暂态扰动激励下交直流系统谐波振荡动态过程刻画与失稳机理研究，52177104)。

Harmonic Model of Static Var Generator and Analysis of Its Resonance Influence

LIU Ke¹, WANG Xuan¹, WANG Yang², WANG Xin³, YANG Fangnan⁴, LI Jianwu⁴, LIU Dongping⁵, GUO Cai⁵, ZHANG Qisheng⁵, CHEN Haimeng²

1. Electric Power Research Institute, State Grid Qinghai Electric Power Company, Xining 810008, China;
2. College of Electrical Engineering, Sichuan University, Chengdu 610065, China;
3. CEIEC Shenzhen Electric Technology Inc., Shenzhen 518000, China;
4. State Grid Qinghai Electric Power Company, Xining 810008, China;
5. Maintenance Company of State Grid Qinghai Electric Power Company, Xining 810008, China

Received:2022-03-21 Revised:2022-06-08 Published:2022-09-20
Supported by:
This work is supported by Science and Technology Project of State Grid Qinghai Electric Power Company (Resonance Analysis and Elimination Technology Research and Application of 35 (10) kV Ungrounded System in Typical Substation of Qinghai Power Grid, No.52280720002Q), National Natural Science Foundation of China (Study on Dynamic Process Characterization and Instability Mechanism of Harmonic Oscillation in AC/DC System Under Transient Disturbance Excitation, No.52177104).

摘要/Abstract

摘要： 静止无功发生器（static var generator，SVG）因响应速度快和调节范围广等优点被广泛应用于光伏场站，从而满足系统动态无功补偿等需求。然而现有研究缺乏SVG与光伏场站及电网谐波交互作用的分析，往往忽略其对光伏场站谐波谐振问题的影响。针对这一问题，基于多频谐波响应建立一种新型谐波耦合阻抗形式的SVG模型，该模型能够充分揭示系统中的频率耦合效应，可用于定量分析SVG对光伏场站谐波谐振的影响。最后，通过对实际光伏场站的时域仿真，验证所提谐波阻抗模型的正确性及频率耦合在谐波谐振分析中的重要性。

关键词: 静止无功发生器, 多频谐波响应, 谐波阻抗, 频率耦合, 谐波谐振

Abstract: Static var generators (SVGs) are widely used in photovoltaic (PV) stations because of their fast response speed and wide regulation range, which can meet such needs of the system as dynamic reactive power compensation. However, the existing research lacks the analysis of the harmonic interaction between SVGs and PV stations and power grids, and it often ignores the impact of SVGs on the harmonic resonance of PV stations. To solve this problem, this paper builds a new SVG model in the form of harmonic coupling impedance on the basis of multi-frequency harmonic response. The model can fully reveal the frequency coupling effect in the system and can be used to quantitatively analyze the influence of SVGs on the harmonic resonance of PV stations. Finally, the time-domain simulations of an actual PV station verify the correctness of the proposed harmonic impedance model and the importance of frequency coupling in harmonic resonance analysis.

Key words: static var generator, multi-frequency harmonic response, harmonic impedance, frequency coupling, harmonic resonance

刘可, 王轩, 王杨, 王昕, 杨放南, 李剑武, 刘冬平, 郭财, 张启晟, 陈海盟. 静止无功发生器谐波模型及其对谐振影响分析[J]. 中国电力, 2022, 55(9): 174-182.

LIU Ke, WANG Xuan, WANG Yang, WANG Xin, YANG Fangnan, LI Jianwu, LIU Dongping, GUO Cai, ZHANG Qisheng, CHEN Haimeng. Harmonic Model of Static Var Generator and Analysis of Its Resonance Influence[J]. Electric Power, 2022, 55(9): 174-182.

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静止无功发生器谐波模型及其对谐振影响分析

Harmonic Model of Static Var Generator and Analysis of Its Resonance Influence

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静止无功发生器谐波模型及其对谐振影响分析

Harmonic Model of Static Var Generator and Analysis of Its Resonance Influence

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