交替极永磁无轴承电机的直接悬浮力控制 - 电工技术学报.pdfVIP

20 11 年 9 月 电 工 技 术 学 报 Vol.26 No. 9 第 26 卷第 9 期 TRAN SACTION S OF CHINA ELECTROTECHNICAL SOCIETY Sep . 20 11 交替极永磁无轴承电机的直接悬浮力控制 1 2 1 仇志坚 邓智泉 章跃进 ( 1. 上海大学机电工程与自动化学院 上海 200072 2. 南京航空航天大学自动化学院 南京 2 100 16) 摘要 通过借鉴永磁同步电机直接转矩 制 （PMSM-DTC）的思想，将直接转矩 制的理 论和方法应用到永磁型无轴承电机磁悬浮力的 制上去，提出了一种新颖的基于空间矢量脉宽 调制 （SVPWM）方法的直接悬浮力 制算法，并在一台交替极无轴承永磁电机上进行了实验 验证，结果表明该 制思想的正确性和有效性。 关键词：交替极永磁电机 无轴承电机 空间矢量脉宽调制 悬浮力 直接 制 中图分类号：TM30 1 Direct Levitation Force Control of a Consequent-Pole Permanent Magnet Bearingless Motor Qiu Zhij ian 1 D eng Zhiquan2 Zhang Yuej in 1 ( 1. Shanghai University Shanghai 200072 China 2. Nanj ing University of Aeronautics and Astronautics Nanj ing 2 100 16 China) Abstract With the reference of direct torque control of conventional permanent magnet synchronous motor, a novel direct levitation force control algorithm based on space vector pulse width modulation method is proposed in this paper . To control radial magnetic levitation forces in permanent magnet-type bearingless motors directly, a profound theoretical analysis on mechanism of direct force control is presented and a real-time levitation force and torque control system is also designed. The experimental results of a consequent-pole permanent magnet bearingless machine show good performance of static and dynamic suspension and confirm the validity and availability of this new arithmetic. Keywords ：Consequent-pole permanent magnet motor, bearingless motor, space vector pulse width modulation (SVPWM), levitation force, direct control