| 一种考虑负载转矩的异步电机弱磁控制策略 |
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| 引用本文： | 樊扬,瞿文龙,陆海峰,程小猛,张星,伍理勋,蒋时军.一种考虑负载转矩的异步电机弱磁控制策略[J].清华大学学报(自然科学版),2009(4). |
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| 作者姓名： | 樊扬 瞿文龙 陆海峰 程小猛 张星 伍理勋 蒋时军 |
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| 作者单位： | 清华大学电机工程与应用电子技术系;电力系统及大型发电设备安全控制和仿真国家重点实验室;株洲电力机车研究所; |
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| 基金项目： | 国家“八六三”高技术项目(2005AA501130) |
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| 摘 要： | 从高速弱磁区内电动汽车对电驱动系统的实际要求出发,提出一种考虑负载转矩的异步电机弱磁控制策略。该策略根据转矩指令动态调节电机转矩电流和励磁电流大小,既能满足宽范围调速的需要又能提高驱动系统在高速弱磁区内的运行效率。此外,通过对转矩电流的补偿控制,能够保证转矩响应的动态性能。文中介绍了该控制策略的基本原理、控制框图和实现方法,并进行了计算仿真和实验验证。计算仿真和实验结果验证了所提出的弱磁控制策略的有效性。
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| 关 键 词： | 异步电机 弱磁控制 转矩系数 运行效率 |
Induction machine flux weakening control strategy based on the load torque |
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| FAN Yang,QU Wenlong,LU Haifeng,CHENG Xiaomeng,ZHANG Xing,WU Lixun,JIANG Shijun.Induction machine flux weakening control strategy based on the load torque[J].Journal of Tsinghua University(Science and Technology),2009(4). |
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| Authors: | FAN Yang QU Wenlong LU Haifeng CHENG Xiaomeng ZHANG Xing WU Lixun JIANG Shijun |
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| Institution: | 1.State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment;Department of Electrical Engineering;Tsinghua University;Beijing 100084;China;2.Zhuzhou Electric Locomotive Research Institute;Zhuzhou 412001;China |
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| Abstract: | A flux weakening control strategy based on the load torque was developed for induction machine drive systems for practical electrical vehicles.In the flux weakening region,the stator current flux and torque components are regulated based on the torque instruction.The output torque can be controlled over a wide speed range and the motor efficiency is increased for some conditions.The dynamic torque response is guaranteed by using torque component compensation of the stator current.All the principle,the contr... |
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| Keywords: | induction machine flux weakening control torque coefficient operation efficiency |
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