构网型静止无功发生器冷却系统流量延时定值研究

Abstract
Figure/Table
References
Related Citation (13)

Download: PDF (689 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

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

Received: 31 October 2025

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	DUAN Xiaohui
	CHEN Yuxi
	ZHANG Huiliang
	GU Shouhua
	ZHANG Yingyue

Cite this article:

DUAN Xiaohui,CHEN Yuxi,ZHANG Huiliang等. Research on flow delay setting of grid-forming static var generator cooling systems[J]. Electrical Engineering, 2026, 27(3): 81-84.

URL:

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

[1] 谢震, 杨曙昕, 代鹏程, 等. 构网型全功率风电机组网侧变流器耦合分析及抑制策略[J]. 电工技术学报, 2023, 38(14): 3745-3758.
[2] 吴珊, 边晓燕, 张菁娴, 等. 面向新型电力系统灵活性提升的国内外辅助服务市场研究综述[J]. 电工技术学报, 2023, 38(6): 1662-1677.
[3] 郭小龙, 杨桂兴, 张彦军, 等. 构网型储能变流器并网系统SISO环路增益建模与重塑控制[J]. 电气技术, 2023, 24(2): 24-31.
[4] 孙东伟, 张旸, 温步瀛, 等. 增强同步稳定的构网型变流器虚拟惯量限流方法[J]. 电气技术, 2025, 26(4): 1-6.
[5] 董熙, 刘东川, 江楠, 等. 换流阀冷却系统数字化技术应用研究[J]. 电气技术, 2024, 25(12): 73-79.
[6] 刘杉, 高冲, 侯俊义, 等. 基于去离子水冷却±800 kV换流变压器阀侧套管的冷却效果和参数的影响[J]. 电工技术学报, 2024, 39(12): 3884-3894.
[7] 常州博瑞电力自动化设备有限公司, 南京南瑞继保电气有限公司, 南京南瑞继保工程技术有限公司. 一种构网型冷却系统流量延时测试方法: CN202411244633.7[P].2024-11-22.
[8] 肖佳伟, 张辉亮, 段小辉, 等. 密闭式纯水冷却设备切泵过程水力特性研究[J]. 电工技术, 2022(16): 1-5.
[9] 杨寿源, 耿成通. 永仁换流站阀冷主泵切泵逻辑风险分析与改进[J]. 云南电业, 2022(3): 7-10.
[10] 郑登升, 陈宇曦, 赵盛国, 等. 换流阀冷却系统主循环泵的运行特性研究[J]. 机械设计与制造工程, 2023, 52(11): 96-100.
[11] Korsakova S, Protopopov A.Obtaining of dependence of sustained angular rotor speed of centrifugal pump with hydrostatic bearings[J]. IOP Conference Series: Materials Science and Engineering, 2019, 492: 012032.
[12] Elaoud S, Hadj-Taieb E.Influence of pump starting times on transient flows in pipes[J]. Nuclear Engi- neering and Design, 2011, 241(9): 3624-3631.