| 引用本文: | 朱良合,袁志昌,盛超,骆潘钿,杨汾艳,刘正富,郭敬梅.基于柔性直流输电的异步互联系统频率支援控制方法综述[J].电力自动化设备,2019,39(2): |
| ZHU Lianghe,YUAN Zhichang,SHENG Chao,LUO Pandian,YANG Fenyan,LIU Zhengfu,GUO Jingmei.Review of frequency support control methods for asynchronous interconnection system based on VSC-HVDC[J].Electric Power Automation Equipment,2019,39(2): |
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| 摘要: |
| 利用基于电压源换流器的柔性直流输电(VSC-HVDC)的快速功率控制能力实现异步互联的交流电网间的频率支援，可以充分发挥全系统备用容量的调节能力，提高互联系统的安全性和稳定性。综述了国内外该领域的研究现状，详细介绍了基于通信的主从控制、利用电压传递频率波动的主从控制、附加频率调节的下垂控制以及基于虚拟同步机特性的控制等不同方法的基本原理。通过统一的仿真模型对比分析了各种方法的控制特点和性能，从工程应用角度总结了这些方法的优缺点以及进一步研究的方向。 |
| 关键词: 柔性直流输电 异步互联系统 频率支援控制 主从控制 下垂控制 虚拟同步机 |
| DOI：10.16081/j.issn.1006-6047.2019.02.013 |
| 分类号:TM721.1 |
| 基金项目:“广东电网柔性直流背靠背异步联网控制保护策略与系统特性研究”项目(GDKJQQ20152052) |
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| Review of frequency support control methods for asynchronous interconnection system based on VSC-HVDC |
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ZHU Lianghe1, YUAN Zhichang2, SHENG Chao1, LUO Pandian1, YANG Fenyan1, LIU Zhengfu1, GUO Jingmei1
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1.Electric Power Research Institute of Guangdong Power Grid Co.,Ltd.,Guangzhou 510075, China;2.Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
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| Abstract: |
| The fast power control ability of VSC-HVDC(Voltage Source Converter based High Voltage Direct Current) can realize the frequency support among asynchronous AC systems, which makes full use of the regulation capacity of the whole system reserve capacity and improves the safety and stability of the interconnection system. The research status of this field at home and abroad is summarized. The basic principles of different methods, such as the master-slave control based on communication, the master-slave control based on frequency fluctuation delivery by voltage, the droop control with additional frequency regulation, the control based on the characteristics of virtual synchronous generator, etc.,are introduced in detail. The control features and performances of different methods are analyzed and compared by a unified simulation model, and their advantages, disadvantages and the further research directions are summarized from the engineering application point of view. |
| Key words: VSC-HVDC asynchronous interconnection system frequency support control master-slave control droop control virtual synchronous generator |
