构网型静止无功发生器冷却系统流量延时定值研究

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摘要本文以构网型静止无功发生器（SVG）配套的冷却系统为研究对象,在阀组结温可承受的低流量范围内,针对双泵切换过程中的起泵切泵时间、双泵重叠运行时间和流量跌落再建立时间开展测试,从而确定冷却系统的流量延时。本文旨在准确测定构网型SVG系统在极端工况下冷却介质低流量的持续时间,并据此计算流量延时,然后合理设置流量延时参数,确保在切泵等单一故障发生时不影响系统稳定运行;同时,考虑阀组功率模块的热耐受能力,避免因短时低流量而危及功率器件的运行可靠性。

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	段小辉
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	张潆月

关键词 ：构网, 冷却, 切泵, 流量延时

Abstract：This paper focuses on the cooling system of a grid-forming static var generator (SVG). Within the low-flow range that the junction temperature of the valve group can be withstood, tests are conducted on the pump switching process, including the start-stop time of pumps, the overlapping operation time of dual pumps, and the flow drop restablishment time, to determine the flow delay time of the cooling system. The research aims to accurately measure the duration of low coolant flow under extreme operating conditions in the grid-forming SVG system. Based on this, the flow delay can be calculated and then reasonable flow delay parameters can be set to ensure that single faults such as pump switching do not affect the system's stable operation. Meanwhile, considering the thermal tolerance of the valve group's power modules, the study ensures that short-term low flow does not compromise the operational reliability of the power devices.

Key words： grid-forming cooling pump switching flow delay

收稿日期: 2025-10-31

作者简介: 段小辉（1990—）,男,河南省周口市人,硕士,从事电力设备冷却系统研究工作。

引用本文:

段小辉, 陈宇曦, 张辉亮, 顾守华, 张潆月. 构网型静止无功发生器冷却系统流量延时定值研究[J]. 电气技术, 2026, 27(3): 81-84. DUAN Xiaohui, CHEN Yuxi, ZHANG Huiliang, GU Shouhua, ZHANG Yingyue. Research on flow delay setting of grid-forming static var generator cooling systems. Electrical Engineering, 2026, 27(3): 81-84.

链接本文:

https://dqjs.cesmedia.cn/CN/Y2026/V27/I3/81

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