一种电网故障时补偿设备的限流控制策略

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关键词：SVG；无功补偿；限流控制；功率特性；电压波动

中图分类号：TM77 文献标志码：A 文章编号：1003-5168(2025)20-0011-04

DOI: 10.19968/j.cnki.hnkj.1003-5168.2025.20.002

Current Limiting Control Strategy for Compensation Equipment During Power Grid Faults

HUANG ShipengCHEN Riyao LIU Nan SHI HuakaiZHANG Wei (Liaoning Rongxin Power Electronics Technology Co.,Ltd.,Anshan 114O51,China)

Abstract: [Purposes] With the continuous development of power systems,the requirements for current limiting control technology are increasingly high.To address the limitations of traditional current limiting methods in handling complex fault scenarios,a current limiting control strategy for compensation equipment during power grid faults is proposed.[Methods]First,by analyzing the main circuit topology and control principles of the Static Var Generator (SVG),a calculation method based on instantaneous fault sampling of the power grid system was designed.Second,the relationship between the system output current and the reactor terminal voltage Was analyzed. Output current limiting control was designed according to the SVG characteristics,including relevant current limiting strategies,thecoordination between current limiting and protection control,and grid characteristics under output current limiting conditions.Combined with actual field conditions,the activeand reactive power status of the system was calculated.Finally,simulations and experiments were conducted to verify its effectiveness.[Findings]The research results show that this current limitingcontrol strategy demonstrates significant effectiveness in limiting the output current of the SVG during grid-side system faults.[Conclusions] This strategy provides a new solution for the safe and stable operation of power systems and can serve as a reference for subsequent related research.

Keywords: SVG; reactive power compensation; current limiting control; power characteristics; voltage fluctuation

0 引言

随着煤矿井下引进更多新的大型掘进、采煤设备，其电网结构更加复杂。（剩余5667字）