山东电力技术2025，Vol.52Issue(6)：95-104,10.DOI:10.20097/j.cnki.issn1007-9904.2025.06.010
调相机空冷岛风机故障仿真分析及措施建议
Fault Simulation Analysis and Measures for the Synchronous Condenser Air Cooling Island Fan
摘要
Abstract
The closed external cold water system(dry and wet combination)is mainly used in the water shortage area in northwest China,which is mainly composed of air cooling island and evaporative cooling tower.Since the air cooling island fan of some stations has been put into operation,the motor has been burned seriously,resulting in a significant decrease in heat transfer effect,which seriously affects the safe and stable operation of the unit.Through the field investigation and test of the operation condition of the air cooling island,it is found that there is a difference in the number of burnout between the frequency conversion fan and the power frequency motor.The following problems are found in the study and analysis:the frequency converter+conventional motor is used in the design of the inverter,because the frequency converter is a multi-mode,the pulse voltage is too large to destroy the winding insulation;The site is located in the northwest of China,the air cooling island lacks protective measures,and the heat exchanger fins are clogged seriously.Crosswind has a serious effect,and the airflow structure backfilling leads to poor heat transfer effect.Motor selection does not meet the requirements,the motor protection level is low,resulting in motor water rust.In view of the above situation,it is proposed to replace the special frequency conversion motor with long bearing life and higher protection grade,and remove the air duct and air valve of the air cooling island fan to install an anti-freezing shed.关键词
调相机/空冷岛/风机/变频器Key words
synchronous condenser/air cooling island/fan/converter分类
化学工程引用本文复制引用
郝亚楠,王俊,颜庆,李贵海,郭语..调相机空冷岛风机故障仿真分析及措施建议[J].山东电力技术,2025,52(6):95-104,10.基金项目
国网山东省电力公司电力科学研究院自主研发项目(ZY-2023-10). Independent Research and Development Project of State Grid Shandong Electric Power Research Institute(ZY-2023-10). （ZY-2023-10）
