| 力矩电机的弱磁控制策略 |
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| 引用本文： | 王玉凯,曾理湛,李小清,王俊,金建新. 力矩电机的弱磁控制策略[J]. 微电机, 2012, 45(7): 40-44 |
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| 作者姓名： | 王玉凯 曾理湛 李小清 王俊 金建新 |
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| 作者单位： | 华中科技大学,武汉,430074 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目，国家高技术研究发展计划(863计划)资助项目 |
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| 摘 要： | 介绍了力矩电机直接传动在起重机提升机构中的应用,针对提升机构的快速下放控制,分析了力矩电机弱磁调速控制原理以及影响其运行范围的主要因素,考虑dq轴电流环限幅参数的影响,提出了一种基于改进电流环的电压外环弱磁控制策略。结合空间矢量脉宽调制(SVPWM)过调制算法,进一步扩大了弱磁调速运行范围。最后利用STM32微控制器实现了力矩电机弱磁调速控制系统,并通过实验验证其有效性。
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| 关 键 词： | 力矩电机 弱磁控制 电流环 过调制算法 |
Flux-weakening Control Strategy for Torque Motors |
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| WANG Yukai , ZENG Lizhan , LI Xiaoqing , WANG Jun , JIN Jianxin. Flux-weakening Control Strategy for Torque Motors[J]. Micromotors, 2012, 45(7): 40-44 |
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| Authors: | WANG Yukai ZENG Lizhan LI Xiaoqing WANG Jun JIN Jianxin |
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| Affiliation: | (Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | This paper introduced the application of direct-drive low-speed torque motors in cranes.To achieve the rapid down control of cranes,the principle of flux-weakening control of torque motors and its main influencing factors were analyzed.Considering the effects of the amplitude limit parameters in dq axis current loop,the voltage-loop flux-weakening control scheme based on the improved current-loop was proposed.Then,the operating region of flux-weakening speed control for the torque motors was further extended with the overmodulation algorithm of SVPWM.The proposed flux-weakening speed-control system of the torque motors was realized by STM32 microcontroller,and it was verified with experiments. |
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| Keywords: | torque motor flux-weakening control current loop overmodulation algorithm |
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