| 基于改进型积分器的永磁同步电机直接转矩控制 |
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| 引用本文： | 许峻峰,徐英雷,冯江华,许建平.基于改进型积分器的永磁同步电机直接转矩控制[J].电工技术学报,2004,19(7):77-80,94. |
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| 作者姓名： | 许峻峰 徐英雷 冯江华 许建平 |
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| 作者单位： | 1. 西南交通大学电气工程学院,成都,610031
2. 株洲电力机车研究所,株洲,412001 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目 |
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| 摘 要： | 将改进型积分器用于永磁同步电机的定子磁链观测环节,目的在于解决纯积分器存在直流偏移的缺陷.对于系统不同的给定值,固定的截止频率导致改进型积分器的磁链幅值和最佳限幅值不恒定,针对这一缺点本文提出了根据永磁同步电机状态方程来获得磁链比较环节的定子磁链给定值,从而提高了系统的性能,使系统不再受外界给定值的影响.
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| 关 键 词： | 积分器 永磁同步电机 直接转矩控制 |
| 修稿时间： | 2003年7月10日 |
Direct Torque Control of Permanent Magnet Synchronous Machines Based on Modified Integrator |
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| Xu Junfeng,Xu Yinglei,Feng Jianghua,Xu Jianping.Direct Torque Control of Permanent Magnet Synchronous Machines Based on Modified Integrator[J].Transactions of China Electrotechnical Society,2004,19(7):77-80,94. |
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| Authors: | Xu Junfeng Xu Yinglei Feng Jianghua Xu Jianping |
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| Affiliation: | Xu Junfeng1 Xu Yinglei1 Feng Jianghua2 Xu Jianping1 (1. Southwest Jiaotong University Chengdu 610031 China) (2. Zhuzhou Electrical Locomotive Research Institute Zhuzhou 412001 China) |
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| Abstract: | This paper presents a new direct torque control (DTC) scheme for permanent magnet synchronous machine (PMSM) based on modified integrator with an amplitude limiter, which is used to overcome the shortage of dc drift caused by using pure integrator. In practice, it is difficult to set the proper stator flux given value and limited amplitude for the modified integrator when given value changed. So a new stator flux observer based on the stator equations of the permanent magnet synchronous is proposed and is used as the input of the stator flux compare unit with the modified integrator reserved as the sector decision. Good performance has been achieved by simulation. |
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| Keywords: | Integrator permanent magnet synchronous machine (PMSM) direct torque control (DTC) |
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