摘要
为解决车载永磁同步发电机(PMSG)稳定输出电压的问题,提出弱磁矢量控制与无位置传感器控制相结合的控制策略.在原动机转速范围较大或负载变化较大情况下,研究矢量控制与弱磁控制相结合的控制策略,调节发电机气隙磁场从而进行稳压控制;通过模型参考自适应(MRAS)无传感器控制代替机械式传感器的使用.建立永磁同步发电机数学模型,通过定子电流矢量轨迹确定稳压控制的直轴与交轴电流.利用MRAS系统估计转子位置与转速信息,推导自适应律.仿真结果表明:设计的控制策略可使PMSG在无传感器时对转速和负载的变化做出快速响应,并输出稳定的电压,验证了控制策略的有效性.
In order to meet the requirement that a permanent magnet synchronous generator(PMSG)installed in a vehicle can emit a constant voltage during vehicle field operation,a control strategy combining flux-weakening vector control with position sensorless control has been proposed.When the prime mover speed range or load change is large,the generator air gap is adjusted using a control strategy that combines vector control and flux weakening control for the pressure stability control,By model reference adaptation(MRAS),position sensorless is used to replace control mechanical sensors.A mathematical models of PMSG is established,and dq axis current of voltage stability control are determined by stator current vector trajectory.The MRAS system is used for estimating the position and speed of the rotor,and the adaptive law is derived.The simulation results show that the PMSG planned control strategy can respond quickly to the changes in the speed and load without sensors and outputs a stable voltage,which verifies the effectiveness of the control strategy.
作者
陈忠华
苏泽宇
王巍
赵春雨
CHEN Zhonghua;SU Zeyu;WANG Wei;ZHAO Chunyu(Faculty of Electrical and Control Engineering,Liaoning Technical University,Huludao125105,China;Ground Support Equipment Research and Development Center,Shenyang Aerospace Xinguang Group Limited Company,Shenyang 110861,China)
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2022年第6期549-557,共9页
Journal of Liaoning Technical University (Natural Science)
基金
辽宁省教育厅基础项目(LJ2019JL011)
关键词
永磁同步发电机
电流矢量控制
弱磁控制
无位置传感器
模型参考自适应
permanent magnet synchronous generator
current vector control
flux weakening control
position sensorless
model reference adaptive
