柔性限流控制技术研究与现场应用
王涛涛，刘叶杰，钱恩良，邵堃侠，徐邦凯
(浙江省送变电工程有限公司，浙江 杭州 310020)
摘 要：针对电网短路电流超标的问题，结合天一变 220 kV 正母分段改造的工程实际提出了一种柔性限流控制技术。该技术主要基于高速开断技术，实现动态调整系统拓扑，达到降低短路电流的目的。阐述了构成柔性限流控制技术的快速保护装置和快速开关的原理，给出了工程现场的应用及组网方式，并通过两次人工短路试验测试快速开关与常规开关动作的时序和对短路电流的抑制效果，论证了柔性限流控制技术在工程上应用的可行性。
关键词： 柔性限流控制技术；高速开断技术；斥力机构；人工短路试验；电流瞬时采样值
中图分类号：TM721.2 ；TM771 文献标识码：B 文章编号：1007-3175(2023)08-0035-07
Research and Engineering Application of Flexible
Current Limiting Control Technology
WANG Tao-tao, LIU Ye-jie, QIAN En-liang, SHAO Kun-xia, XU Bang-kai
（Zhejiang Electric Transmission & Transformation Engineering Co., Ltd, Hangzhou 310020, China）
Abstract: Aiming at the problem of short-circuit current exceeding the standard, a flexible current limiting control technology is proposed based on the practical engineering of 220 kV bus section breaker of Tianyi transformer substation. This technology, mainly based on high-speed interruption technology, can dynamically adjust the system topology to reduce short-circuit current. In this paper, the principle of fast protection and fast switching of flexible current limiting control technology is expounded, and the application and networking mode of engineering field are given. The time sequence of fast switching and conventional switching action and the suppression of short circuit current are tested by two artificial short circuit tests, and the feasibility of flexible current limiting control technology in engineering application is verified.
Key words: flexible current limiting control technology; high speed interruption technology; repulsion agencies; artificial short circuit test;current instantaneous sample value
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