船电技术2025，Vol.45Issue(9)：24-29,34,7.
电动船永磁电机推进逆变器过流保护方法研究
Research on overcurrent protection method for permanent magnet motor propulsion inverters in electric ships
罗潇 1柯常国 2王宏星3
作者信息
- 1. 海军装备部驻广州地区军事代表局,广州 510300
- 2. 武汉船用电力推进装置研究所,武汉 430064
- 3. 上海船舶运输科学研究所有限公司,上海 200135
- 折叠
摘要
Abstract
In order to solve the overcurrent fault of the permanent magnet motor propulsion inverter in electric ships and ensure the safe and stable operation of the permanent magnet propulsion motor,this study carried out the research on the overcurrent protection method of the permanent magnet motor propulsion inverter in electric ships.In the aspect of hardware,the protection design includes STM32 microcontroller,current detection and overcurrent protection modules for the permanent magnet motor propulsion inverter of the electric ships,which can effectively detect the current signal,and with the assistance of the software system,complete the overcurrent fault judgment of the motor inverter,and implement the corresponding protection.The software includes putting forward the inverse time limit overcurrent protection strategy adapted to the motor inverter,constructing the inverse time limit overcurrent protection model of the permanent magnet motor propulsion inverter,cooperating with the hardware of the motor inverter to complete the operation of overcurrent fault judgment,and completing the overcurrent protection work of the motor inverter with high quality.The experimental results show that this method has good overcurrent protection effect.After the overcurrent protection,the motor inverter can drive the motor better,and the motor can still resume stable operation within 0.2s even under inverter overcurrent conditions.关键词
永磁电机/推进逆变器/过流保护/电流检测/反时限/电流采样Key words
permanent magnet motor/populsion inverter/over current protection/current detection/inverse time limit/current sampling分类
信息技术与安全科学引用本文复制引用
罗潇,柯常国,王宏星..电动船永磁电机推进逆变器过流保护方法研究[J].船电技术,2025,45(9):24-29,34,7.
