微特电机 ›› 2023, Vol. 51 ›› Issue (1): 45-49.

• 驱动控制 • 上一篇    下一篇

船用五相感应电机模型预测电流控制研究

张庆飞, 赵镜红, 严思念, 许浩   

  1. 海军工程大学 电气工程学院,武汉 430000
  • 收稿日期:2022-06-07 发布日期:2023-02-02
  • 作者简介:张庆飞(1997-),男,硕士研究生,研究方向为多相电机控制。

Research on Model Predictive Current Control of MarineFive-Phase Induction Motor

ZHANG Qingfei, ZHAO Jinghong, YAN Sinian, XU Hao   

  1. College of Electrical Engineering, Naval University of Engineering,Wuhan 430000, China
  • Received:2022-06-07 Published:2023-02-02

摘要: 传统五相感应电机矢量控制中包含多个PI参数需整定,且存在电压调制环节而造成控制系统结构复杂。引入模型预测电流控制代替矢量控制以解决该问题。获得预测模型后,在预测电流控制器中对五相逆变器输出的32个电压矢量进行遍历寻优,得到最优电压矢量的开关状态。为解决五相感应电机谐波空间电流影响,在代价函数中使用权重因子对谐波电流项进行调节,实现对谐波电流的抑制,并给出谐波含量与转速及权重因子之间关系。仿真结果表明,应用模型预测电流控制策略的五相感应电机动态响应速度快,在工况切换时依然具有良好的控制效果。

关键词: 五相感应电机, 模型预测控制, 谐波电流, 权重因子

Abstract: The traditional vector control of five-phase induction motor contains multiple PI parameters to be set, and there is a voltage modulation link, resulting in complex control system structure. Model predictive current control was introduced to replace vector control to solve the above problems. After the prediction model was obtained, the 32 voltage vectors output by the five-phase inverter were traversed and optimized in the predictive current controller to obtain the switching state of the optimal voltage vector. In order to solve the influence of the five-phase induction motor harmonic current space, the cost function used the weight factor to adjust the harmonic current term, to achieve harmonic current suppression,the influence of rotational speed and weight factor on phase current harmonics was given. The simulation results show that the five-phase induction motor with the model predictive current control strategy has fast dynamic response speed and good control effect when switching mode.

Key words: five-phase induction motor, model predictive control(MPC), harmonic current, weighting factor

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