| 低脉动恒开关频率直线永磁同步电机推力控制 |
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| 引用本文： | 王华,张震宇,邹积浩. 低脉动恒开关频率直线永磁同步电机推力控制[J]. 浙江科技学院学报, 2006, 18(1): 23-27 |
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| 作者姓名： | 王华 张震宇 邹积浩 |
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| 作者单位： | 浙江科技学院,自动化与电气工程学院,杭州,310023;浙江大学,电气工程学院,杭州,310027 |
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| 摘 要： | 针对直线永磁同步电机直接推力滞环控制在稳态运行时会有明显的推力、磁链和电流脉动产生,从而影响速度的估计,且由于不连续电压矢量的作用,增加了开关的次数,从而带来较强的电磁噪音,造成电损增加等问题,在分析电压空间矢量对推力的直接作用的基础上,提出了一种低脉动恒开关频率的无速度传感器直接推力控制方法。仿真结果表明,与传统方法相比,稳态运行时的磁链、推力脉动得到明显的改善,电流谐波及开关频率明显减少,而且可以根据需要在一定范围内选取不同的开关频率。
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| 关 键 词： | 直线永磁同步电机 直接推力控制 推力脉动 |
| 文章编号： | 1671-8798(2006)01-0023-05 |
| 收稿时间： | 2005-05-23 |
| 修稿时间： | 2005-05-23 |
Thrust Control of Permanent Magnet Linear Synchronous Motor with Low Ripple and Constant Switching Frequency |
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| WANG Hua,ZHANG Zhen-yu,ZOU Ji-hao. Thrust Control of Permanent Magnet Linear Synchronous Motor with Low Ripple and Constant Switching Frequency[J]. Journal of Zhejiang University of Science and Technology, 2006, 18(1): 23-27 |
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| Authors: | WANG Hua ZHANG Zhen-yu ZOU Ji-hao |
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| Affiliation: | 1. School of Automation and Electrical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023,China; 2. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | During steady-state operation,notable torque,flux and current pulsations will occur in direct thrust control with hysteresis comparator.They are reflected in the estimate of speed,speed response,and also in increased acoustical noise.This paper introduced a new direct thrust and flux control method based on space-vector modulation(DTC-SVM) for interior permanent magnet linear synchronous motor(IPMLSM) without sensors drives.It is able to reduce the acoustical noise,the thrust,flux,current,and speed pulsations during steady state.With DTC transient merits preserved,this method gives better steady-state performance for a wide speed range. |
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| Keywords: | IPMLSM DTC-SVM thrust ripple |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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