安全、健康和环境2026，Vol.26Issue(3)：26-33,8.DOI:10.3969/j.issn.1672-7932.2026.03.004
电源快速切换下电动机群启动的安全稳定分析方法
Safety Stability Analysis Method for Motor Group Start-up During Fast Bus Transfer
雷召 1刘维功 2钱志红2
作者信息
- 1. 中国石油化工股份有限公司炼油事业部,北京 100020
- 2. 中石化(大连)石油化工研究院有限公司,辽宁 大连 116045
- 折叠
摘要
Abstract
The fast bus transfer can cause busbar voltage sags when the motor group starts,which poses a threat to power supply security and production stability.Aiming at the problem that it is difficult to accurately quantify the bus voltages at all levels in the motor group start-up under complex power supply networks during this process,the theoretical calculation process of the start-up of a single motor was discussed,and the calcula-tion method of the motor group start-up under the complex power supply network was derived.A quantitative calculation and safety stability analysis method for bus voltages at all levels during the start-up of a motor group under fast bus transfer was proposed.Taking a 110 kV industrial substation as a case study,calculations were performed to determine the busbar voltages(at medium-voltage and low-voltage sides)and the terminal voltages of the motors during group starting triggered by FBT operation on the high-voltage side of a three-winding trans-former.The impact on supply security was analyzed,and corresponding countermeasures were proposed.The feasibility of using per-unit values for conducting quantification calculations and safety stability analysis of bus voltages at all levels in complex network while motor group started was verified.This method provides a techni-cal reference for industrial enterprises to implement security and stability analysis of motor group start-up within complex power supply networks.关键词
复杂供电网络/电源快速切换/电动机群/母线电压/三绕组变压器Key words
complex power supply networks/fast bus transfer/motor group/busbar voltage/three-winding transformer分类
信息技术与安全科学引用本文复制引用
雷召,刘维功,钱志红..电源快速切换下电动机群启动的安全稳定分析方法[J].安全、健康和环境,2026,26(3):26-33,8.
