基于宽速滑模观测器的新型自减速永磁轮毂电机无传感器直接转矩控制

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摘要研究了一种基于宽速滑模观测器的新型自减速永磁轮毂电机无传感器直接转矩控制方法,解决了传统直接转矩中转矩和磁链脉动大以及电机运行于空载或突加负载时直轴电流分量较大等问题;并解决了传统滑模观测器相位延迟的问题,有效改善系统抖振并提高了低速时转子位置估算精度。建立新型自减速永磁轮毂电机无传感器直接转矩控制调速系统并进行仿真和实验测试。仿真和实验结果验证了所提方法的可行性和有效性。

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关键词 ：自减速永磁轮毂电机, 直接转矩控制, 磁链自适应, 滑模观测器, 无传感器控制

Abstract：In this paper, a wide-speed sliding mode observer(SMO) for sensorless direct torque control(DTC) of a new self-decelerating permanent magnet(SDPM) in-wheel motor is investigated. The problems in traditional DTC including big torque and flux linkage ripples, and large direct axis current due to the operating of the motor under light load or sudden increased load are resolved. Moreover, the problem of phase delay in conventional SMO is solved, the system chattering is improved validly, and the performance in estimating the rotor position at low speed is optimized. Then the SDPM in-wheel motor sensorless DTC system is set up, and the simulation and experiment are implemented on this platform. The simulation and experimental results verify the feasibility and effectiveness of the proposed method.

Key words： Self-decelerating permanent magnet in-wheel motor direct torque control flux linkage adaptive approach sliding mode observer sensorless control

收稿日期: 2013-08-02 出版日期: 2014-11-05

PACS:

TM315

基金资助:国家自然科学基金（51177012）和江苏省自然科学基金（BK2011458）资助项目

作者简介: 樊英女,1970年生,博士,副教授,博士生导师,研究方向为电动车驱动控制技术、风力发电技术、电力电子与电机驱动控制系统等。张丽女,1987年生,博士研究生,研究方向为电动汽车控制技术。

引用本文:

樊英, 张丽, 程明. 基于宽速滑模观测器的新型自减速永磁轮毂电机无传感器直接转矩控制[J]. 电工技术学报, 2014, 29(5): 141-148. Fan Ying, Zhang Li. A Wide-Speed Sliding Mode Observer for Sensorless Direct Torque Control of a New Self-Decelerating Permanent Magnet In-Wheel Motor. Transactions of China Electrotechnical Society, 2014, 29(5): 141-148.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2014/V29/I5/141

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