±800 kV雁淮特高压直流送端电网安全稳定特性及控制策略

doi:10.11930/j.issn.1004-9649.201707130

中国电力 ›› 2018, Vol. 51 ›› Issue (4): 7-14.DOI: 10.11930/j.issn.1004-9649.201707130

±800 kV雁淮特高压直流送端电网安全稳定特性及控制策略

潘捷¹, 郑惠萍², 张红丽³, 王超³, 薛志伟¹, 刘福锁³, 吴晨曦³

1. 山西省电力公司, 山西太原 030001;
2. 国网山西省电力公司电力科学研究院, 山西太原 030001;
3. 南瑞集团有限公司(国网电力科学研究院有限公司), 江苏南京 211106

收稿日期:2017-07-19 修回日期:2017-12-18 出版日期:2018-04-05 发布日期:2018-04-12
作者简介:潘捷(1966-),男,上海人,高级工程师,从事电力系统调度运行控制工作,E-mail:panjie@sx.sgcc.com.cn。
基金资助:
国家电网公司科技项目（特高压交直流混联电网量化分析和第三道防线协调控制技术研究）。

Security Stability Analysis and Control Strategy of Sending-End Power Grid of ±800 kV Yan-Huai UHVDC

PAN Jie¹, ZHENG Huiping², ZHANG Hongli³, WANG Chao³, XUE Zhiwei¹, LIU Fusuo³, WU Chenxi³

1. Shanxi Electric Power Company, Taiyuan 030001, China;
2. Shanxi Electric Power Research Institute, Taiyuan 030001, China;
3. NARI Group Co. Ltd., Nanjing 211106, China

Received:2017-07-19 Revised:2017-12-18 Online:2018-04-05 Published:2018-04-12
Supported by:
This work is supported by Science and Technology Project of State Grid Corporation of China (Research on Quantitative Analysis of UHV AC and DC Hybrid Power Grid and Third Line Control Coordinated Control Technology).

摘要/Abstract

摘要： 为深入研究无配套火电支撑的风火打捆特高压直流配套稳控系统控制策略，分析了雁淮直流投运初期送端电网安全稳定特性，研究了近区风电不同接线方式对直流换相失败后风机暂态过电压的影响。提出了综合应对直流近区及山西北部电网潮流转移和电压稳定的切机控制策略，实现了多区域分散可切机组的协调配合，设计了稳控装置配置及实现功能。通过研究雁淮直流送端稳控系统与山西北部交流稳控系统的耦合特性，量化了两套稳控装置相继动作带来的可切容量不足风险，提出不同停机备用水平下雁淮直流预控功率。仿真结果验证了所提策略的有效性与合理性，研究结论可为无配套火电支撑的风火打捆直流外送系统的安全稳定分析及控制策略制定提供参考。

关键词: 风火打捆, 特高压直流, 暂态过电压, 控制策略, 稳控装置

Abstract: Security and stability characteristics of sending-end grid of Yan-Huai UHVDC is analyzed in detail. The UHVDC system is a wind-thermal-bundled system without support of thermal power generation. The influence of different connection methods on transient voltage of wind generator after one-time commutation failure of Yan-Huai UHVDC is analyzed. Generator tripping control strategy is proposed with consideration of power transfer and voltage stability in areas close to converter station and north Shanxi area. A deployment scheme of stability control devices is designed to realize cooperative control of tripping generators in different areas. Considering different spare levels of generators, pre-control operation powers of Yan-Huai UHVDC are proposed after analyzing coupling characteristic of stability control systems between sending-end system of Yan-Huai UHVDC and North Shanxi. Risk of generator tripping due to insufficient capacity is quantified after success operation of two sets of stability control device. Simulation results and analysis based on real-sized power grid in China prove rationality and effectiveness of proposed control strategies. The simulation and analysis result provides references for stability analysis and control strategy development of the similar sending-end system of UHVDC projects.

Key words: wind-thermal-bundled, UHVDC, transient voltage, control strategy, security and stability control device

中图分类号:

TM721.1

潘捷, 郑惠萍, 张红丽, 王超, 薛志伟, 刘福锁, 吴晨曦. ±800 kV雁淮特高压直流送端电网安全稳定特性及控制策略[J]. 中国电力, 2018, 51(4): 7-14.

PAN Jie, ZHENG Huiping, ZHANG Hongli, WANG Chao, XUE Zhiwei, LIU Fusuo, WU Chenxi. Security Stability Analysis and Control Strategy of Sending-End Power Grid of ±800 kV Yan-Huai UHVDC[J]. Electric Power, 2018, 51(4): 7-14.

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https://www.electricpower.com.cn/CN/Y2018/V51/I4/7

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±800 kV雁淮特高压直流送端电网安全稳定特性及控制策略

Security Stability Analysis and Control Strategy of Sending-End Power Grid of ±800 kV Yan-Huai UHVDC

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±800 kV雁淮特高压直流送端电网安全稳定特性及控制策略

Security Stability Analysis and Control Strategy of Sending-End Power Grid of ±800 kV Yan-Huai UHVDC

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