摘要
针对单一的无位置传感器技术无法有效控制船舶永磁同步推进电机的问题,给出了一种可在全转速区域实现混合无位置传感器控制的策略,分析了传统反电动势法(back electromotive force,BEMF)的缺陷,提出了一种改进的带补偿校正的BEMF,并将流频比(I/F)控制策略应用于解决BEMF不能在零速和低速下使用的问题,为了保证开环起动的带载能力和可靠性,增加了转子预定位算法,最后,提出了一种融合过渡方案来解决2种算法之间的切换问题。仿真和实验结果表明,该算法提高了永磁同步电动机转子位置和转速估计的精度,解决了船舶电力推进永磁同步电机全转速范围无法实现无位置传感器控制的难题。
Aiming at the problem that a single position sensorless technology cannot effectively control the permanent magnet synchronous propulsion motor of a ship,a position sensorless hybrid control scheme for the full speed range was proposed.The disadvantages of the traditional back electromotive force(BEMF)method was analyzed,an improved BEMF method with compensation correction was proposed,the flow-frequency ratio(I/F)control strategy was applied to solve the problem that the BEMF method cannot be used at zero speed and low speed,and in order to ensure the load capacity and reliability of open-loop starting,a rotor pre-positioning algorithm was added.Finally,a fusion transition scheme was proposed to solve the problem of switching between the two algorithms.Simulation and experimental results show that the algorithm improves the accuracy of rotor position and speed estimation of permanent magnet synchronous motors,and solves the problem that position sensorless control cannot be achieved in the full speed range of marine electric propulsion permanent magnet synchronous motors.
作者
陈再发
刘彦呈
卢亨宇
CHEN Zai-fa;LIU Yan-cheng;LU Heng-yu(Marine Engineering College,Dalian Maritime University,Dalian 116026,China;Zhejiang International Maritime College,Zhoushan 316021,China)
出处
《电机与控制学报》
EI
CSCD
北大核心
2020年第5期58-67,共10页
Electric Machines and Control
基金
浙江省基础公益研究计划项目(LGG20E070001)
舟山市公益类科技项目(2017C33110)
国家自然科学基金(51709028)。
作者简介
陈再发(1982-),男,博士,研究方向为船舶电力推进技术;刘彦呈(1963-),男,博士,教授,博士生导师,研究方向为机电一体化、智能电气与控制网络;卢亨宇(1992-),男,硕士,研究方向为交流电机控制技术。
