| 提高系统暂态稳定性的柔性直流受端电网故障穿越策略整定 |
| |
| 引用本文： | 于钊,李兆伟,张怡,谭真,贺静波,崔晓丹,丁平,何飞,张剑云.提高系统暂态稳定性的柔性直流受端电网故障穿越策略整定[J].电力系统自动化,2018,42(22):78-84. |
| |
| 作者姓名： | 于钊 李兆伟 张怡 谭真 贺静波 崔晓丹 丁平 何飞 张剑云 |
| |
| 作者单位： | 国家电力调度控制中心, 北京市100031,南瑞集团(国网电力科学研究)有限公司, 江苏省南京市211106; 国电南瑞科技股份有限公司, 江苏省南京市211106,国家电力调度控制中心, 北京市100031,南瑞集团(国网电力科学研究)有限公司, 江苏省南京市211106; 国电南瑞科技股份有限公司, 江苏省南京市211106,国家电力调度控制中心, 北京市100031,南瑞集团(国网电力科学研究)有限公司, 江苏省南京市211106; 国电南瑞科技股份有限公司, 江苏省南京市211106,中国电力科学研究院有限公司, 北京市 100192,国家电力调度控制中心, 北京市100031,国家电力调度控制中心, 北京市100031 |
| |
| 基金项目： | 国家电网公司科技项目“柔性直流输电系统交直流故障穿越及孤岛运行能力提升研究”；已申请国家发明专利(申请号:201711391303.0) |
| |
| 摘 要： | 随着大容量柔性直流输电技术日趋成熟，其在大电网中的应用愈发广泛。充分利用柔性直流灵活、快速的调节性能，设计合理的控制策略，有利于提升系统的安全稳定特性。文中重点针对柔性直流的交流故障穿越策略，利用扩展等面积法则(EEAC)分析了其影响系统暂态稳定性的机理。提出一种提高系统暂态稳定性的故障穿越策略工程优化整定方法。通过优化柔直在故障穿越期间的无功控制目标、低穿电压阈值、故障穿越期间的有功和无功电流限值以及故障穿越的恢复电压阈值，可显著提升柔性直流接入系统的暂态稳定特性。在规划系统仿真中验证了所提方法的有效性，可为实际柔性直流接入系统的控制策略优化及方式安排提供技术支撑。
|
| 关 键 词： | 高压直流 柔性直流输电 暂态稳定 故障穿越 动态无功支撑 |
| 收稿时间： | 2018/5/31 0:00:00 |
| 修稿时间： | 2018/10/19 0:00:00 |
Fault Ride-through Strategy Setting of Flexible HVDC Receiving-end Power Grid for Transient Stability Improvement |
| |
| YU Zhao,LI Zhaowei,ZHANG Yi,TAN Zhen,HE Jingbo,CUI Xiaodan,DING Ping,HE Fei and ZHANG Jianyun.Fault Ride-through Strategy Setting of Flexible HVDC Receiving-end Power Grid for Transient Stability Improvement[J].Automation of Electric Power Systems,2018,42(22):78-84. |
| |
| Authors: | YU Zhao LI Zhaowei ZHANG Yi TAN Zhen HE Jingbo CUI Xiaodan DING Ping HE Fei and ZHANG Jianyun |
| |
| Affiliation: | National Electric Power Dispatching and Control Center, Beijing 100031, China,NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; NARI Technology Co. Ltd., Nanjing 211106, China,National Electric Power Dispatching and Control Center, Beijing 100031, China,NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; NARI Technology Co. Ltd., Nanjing 211106, China,National Electric Power Dispatching and Control Center, Beijing 100031, China,NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; NARI Technology Co. Ltd., Nanjing 211106, China,China Electric Power Research Institute, Beijing 100192, China,National Electric Power Dispatching and Control Center, Beijing 100031, China and National Electric Power Dispatching and Control Center, Beijing 100031, China |
| |
| Abstract: | With the development of large-capacity flexible high voltage direct current(HVDC)transmission technology, its application in large power grid is more and more extensive. It is helpful to design reasonable control strategy to improve the safety and stability of the power system by making full use of the flexible and fast adjustment performance of flexible HVDC. In this paper, the influence of AC fault ride-through strategy of flexible HVDC on the transient stability of the system is analyzed by extended equal-area criterion(EEAC). An AC fault ride-through strategy of flexible HVDC engineering optimization method is proposed. By optimizing flexible HVDC reactive power target-control, low voltage threshold, the active and reactive current limit during fault crossing and fault ride-through recovery voltage threshold, the transient stability of the system with flexible HVDC can be improved remarkably. The effectiveness of the proposed method is verified in the planning system simulation. The proposed method can provide technical support for the control strategy optimization and mode arrangement of flexible HVDC system. |
| |
| Keywords: | high voltage direct current(HVDC) flexible HVDC transient stability fault ride-through dynamic reactive support |
|
| 点击此处可从《电力系统自动化》浏览原始摘要信息 |
|
点击此处可从《电力系统自动化》下载全文 |
|
