| 引用本文: | 李锋,樊艳芳,王晓飞,等.限流串抗器接入电网对继电保护的影响及整定原则研究[J].电力系统保护与控制,2017,45(17):118-123.[点击复制] |
| LI Feng,FAN Yanfang,WANG Xiaofei,et al.Influence of current limiting series reactor connected to the power grid on relay protection and research on the principle of the corresponding setting[J].Power System Protection and Control,2017,45(17):118-123[点击复制] |
|
| 摘要: |
| 串抗的接入极大地抑制了电力系统的短路电流，与此同时给电力系统的继电保护带来了一定的负面影响。利用电磁暂态仿真软件PSCAD/EMTDC仿真正常状态下以及故障状态下串联电抗器对继电保护的影响，分析找出其对继电保护影响的机理。以此为基础，提出了基于串联电抗器不同安装位置的继电保护整定方案，在同一安装位置的整定方案中又进一步提出了不同的整定原则。通过对比分析出不同原则整定方案的优缺点，找出能最大限度降低串联电抗器接入后对继电保护影响的最优整定原则，为后期工程应用提供了理论基础。 |
| 关键词: 串联电抗器 短路电流 不同安装位置 继电保护 整定原则 |
| DOI：10.7667/PSPC161285 |
| 投稿时间：2016-08-11修订日期：2016-09-23 |
| 基金项目:国家自然科学基金项目(51467019) |
|
| Influence of current limiting series reactor connected to the power grid on relay protection and research on the principle of the corresponding setting |
| LI Feng,FAN Yanfang,WANG Xiaofei,LIN Xuefeng |
| (School of Electrical Engineering, Xinjiang University, Urumqi 830047, China;State Grid Xinjiang Communication Center for Power Dispatching, Urumqi 830002, China;Xinjiang Electric Power Design Institute, Urumqi 830001, China) |
| Abstract: |
| Access of series reactor greatly restrains the short circuit current of power system. At the same time, it brings some negative effects to the relay protection of power system. In this paper, electromagnetic transient simulation software PSCAD/EMTDC is used to simulate the influence of series reactor in normal state and fault state on relay protection. And the mechanism of its influence on relay protection is analyzed and found out. On this basis, the relay protection setting scheme based on the different installation position of series reactor is proposed, and different setting principles in the setting scheme of the same installation position are put forward further. Through the comparison and analysis of the advantages and disadvantages of different principles of setting schemes, the optimal setting principle which can minimize the influence of series reactor on relay protection is found out, which provides theoretical basis for the later engineering application. This work is supported by National Natural Science Foundation of China (No.51467019). |
| Key words: series reactor short-circuit current different installation position relay protection setting principle |
