特高压受端电网直流闭锁故障下机组一次调频性能分析

doi:10.11930/j.issn.1004-9649.2016.11.140.05

中国电力 ›› 2016, Vol. 49 ›› Issue (11): 140-144.DOI: 10.11930/j.issn.1004-9649.2016.11.140.05

特高压受端电网直流闭锁故障下机组一次调频性能分析

宣晓华¹, 尹峰¹, 张永军¹, 张宝¹, 卢敏², 陈利跃²

1. 国网浙江省电力公司电力科学研究院,浙江杭州 310014;
2. 国网浙江省电力公司电力调度控制中心,浙江杭州 310007

收稿日期:2016-07-15 出版日期:2016-11-10 发布日期:2016-12-09
作者简介:宣晓华（1965—）,男,浙江杭州人,高级工程师,从事电网分析与控制方面的研究。E-mail: 13858078083@139.com

Analysis on Primary Frequency Regulation Performance of the Units under DC Blocking Fault in UHV Receiving End Power Grid

XUAN Xiaohua¹, YIN Feng¹, ZHANG Yongjun¹, ZHANG Bao¹, LU Min², CHEN Liyue²

1. State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China;
2. State Grid Zhejiang Electric Power Dispatching & Control Center, Hangzhou 310007, China;

Received:2016-07-15 Online:2016-11-10 Published:2016-12-09

摘要/Abstract

摘要： 华东电网已逐步形成特高压大受端电网,而特高压直流闭锁故障时有发生,给电网频率安全带来较大风险,几次故障结果显示全网机组一次调频性能不能很好满足新的要求,频率跌幅超出预期。结合2015年9月19日的锦苏直流双极闭锁故障,对华东电网机组理想一次调频能力与实际响应情况作了对比分析,以浙江电网机组为例提出一次调频能力不足的影响因素,并给出了火电机组一次调频能力提升的技术需求与措施,为新的电网格局下优化机组一次调频控制策略提供参考。

关键词: 特高压, 受端电网, 直流闭锁, 一次调频, 性能分析

Abstract: The East China power grid has gradually formed a UHV (Ultra High Voltage) large receiving end grid. However, high voltage DC block faults occur occasionally, which brings high risk to the safety of power grid frequency. The consequences of some of the faults show that the primary frequency regulation performance of the units in the grid is not able to meet the new requirements, and the drop of the frequency is out of expectation. In this paper, the ideal primary frequency regulation capability and the actual response of the units in the grid are analyzed based on the DC bipolar blocking fault happened on September 19, 2015. Taking the units in Zhejiang Power Grid as an example, the factors that would affect the primary frequency regulation capability are proposed, and the technical requirements and measures for improving the primary frequency regulation ability of the thermal power units are put forward accordingly to provide reference for the optimization of the primary frequency regulation control strategy in the new power grid pattern.

Key words: UHV, receiving end power grid, DC blocking, primary frequency regulation, performance analysis

中图分类号:

TM621

宣晓华, 尹峰, 张永军, 张宝, 卢敏, 陈利跃. 特高压受端电网直流闭锁故障下机组一次调频性能分析[J]. 中国电力, 2016, 49(11): 140-144.

XUAN Xiaohua, YIN Feng, ZHANG Yongjun, ZHANG Bao, LU Min, CHEN Liyue. Analysis on Primary Frequency Regulation Performance of the Units under DC Blocking Fault in UHV Receiving End Power Grid[J]. Electric Power, 2016, 49(11): 140-144.

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特高压受端电网直流闭锁故障下机组一次调频性能分析

Analysis on Primary Frequency Regulation Performance of the Units under DC Blocking Fault in UHV Receiving End Power Grid

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特高压受端电网直流闭锁故障下机组一次调频性能分析

Analysis on Primary Frequency Regulation Performance of the Units under DC Blocking Fault in UHV Receiving End Power Grid

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