| VSC-HVDC在电网黑启动时负荷恢复阶段提高系统频率稳定性研究 |
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| 引用本文： | 郭丽,赵成勇,李广凯,胡冬良. VSC-HVDC在电网黑启动时负荷恢复阶段提高系统频率稳定性研究[J]. 华北电力大学学报(自然科学版), 2007, 34(5): 22-26,31 |
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| 作者姓名： | 郭丽 赵成勇 李广凯 胡冬良 |
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| 作者单位： | 华北电力大学,电力系统保护与动态安全监控教育部重点实验室,河北,保定,071003;山西省电力勘测设计院,山西,太原,030001;华北电力大学,电力系统保护与动态安全监控教育部重点实验室,河北,保定,071003 |
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| 摘 要： | 在电网黑启动的负荷恢复阶段,提高系统的频率稳定性对电网的快速恢复具有重要意义。提出基于电压源换流器的高压直流输电系统(VSC-HVDC)作为电网大停电的黑启动电源,建立了交直流混合系统的物理模型,采用VSC-HVDC与发电机调速器协调控制方法,设计了频率作为控制量的有功功率控制器。通过PSCAD/EMTDC环境下仿真,结果表明在电网恢复时采用VSC-HVDC与调速器协调控制可以大幅度恢复负荷,且速度较快,对系统频率具有很好的稳定性。
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| 关 键 词： | VSC-HVDC 黑启动 负荷恢复 调速器 频率稳定性 |
| 文章编号： | 1007-2691（2007）05-0022-05 |
| 修稿时间： | 2006-12-26 |
VSC-HVDC for enhancing power system frequency stability in the load restoration stage of black start |
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| GUO Li,ZHAO Cheng-yong,LI Guang-kai,HU Dong-liang. VSC-HVDC for enhancing power system frequency stability in the load restoration stage of black start[J]. Journal of North China Electric Power University, 2007, 34(5): 22-26,31 |
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| Authors: | GUO Li ZHAO Cheng-yong LI Guang-kai HU Dong-liang |
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| Affiliation: | 1. Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education, North China Electric Power University, Baoding 071003, China; 2. Shanxi Electric Power Exploration and Design Institution, Taiyuan 030001, China |
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| Abstract: | In the load restoration stage of power system black start it is very important to enhance the restoration speed for frequency stability.This paper presents Voltage Source Converter based HVDC(VSC-HVDC) used as black start source.The physical model of AC system and VSC-HVDC is founded and analyzed.Based on the simulation software PSCAD/EMTDC,a coordinated control method of VSC-HVDC and generator is presented to improve stability of AC/DC hybrid system.Simulation results show that the coordinated control method has excellent dynamic characteristic such as controlling active quickly,and improving the frequency stability of AC system. |
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| Keywords: | VSC-HVDC Black start Load restoration Governor Frequency stability |
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