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	一种新颖的基于死区时间在线调整的SVPWM补偿算法
	何正义 ; 季学武 ; 瞿文龙 ; He Zhengyi ; Ji Xuewu ; Qu Wenlong
	2010-06-04 ; 2010-06-04
关键词	死区补偿 死区效应 死区扰动电压矢量 SVPWM Dead-time compensation, dead-time effects, dead-time disturbance voltage vector, SVPWM TM464
其他题名	A Novel SVPWM Compensation Strategy Based on Regulating Dead Time On-Line
中文摘要	提出了一种逆变器的死区补偿算法,以改善永磁同步电动机的电流波形。传统的SV-PWM死区补偿算法的前提是逆变器三个桥臂的死区时间相同并且不变,若要正确地消除死区效应必须准确地检测出电流的方向。本文所提出的补偿方案是分别独立地改变三个桥臂各自的死区时间,且死区大小由对应相电流的大小实时地计算出来,目的是使由死区引起的扰动电压矢量跟随电流矢量同步旋转。这种情况下,死区扰动电压矢量在d-q坐标系下的分量可由id和iq算得,死区补偿不再需要检测电流方向,这就避免了传统的补偿算法在相电流处于零附近时由于电流方向检测的不准而使得补偿效果下降。实验结果表明,所提出的方案能够有效地改善电流波形的正弦程度,且消除了传统方案需要检测电流方向的弊端,同时算法实现简单,具有工程实用价值。; This paper presents a novel dead-time compensation method for improving the phase current waveform of permanent magnet synchronous motor. The traditional dead-time compensation methods for space vector PWM (SVPWM) are based on the assumption that the dead-time in three inverter legs are fixed, which require accurate current direction information so as to eliminate dead-time effect correctly. In this paper, a new method which independently regulates the dead-time of three inverter legs and the value of dead time is adjusted on-line by the value of corresponding phase current is proposed. With the proposed method, the dead-time disturbance voltage vector rotates synchronously with current vector and no longer depends on current direction. Furthermore, the dead-time disturbance voltage vector in d-q coordinate can be calculated from id and iq without detecting current direction. The experimental results validate that the proposed algorithm can minimize the phase current distortion.; 国家863基金资助项目(2006AA110101)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/36506]
专题	清华大学
推荐引用方式 GB/T 7714	何正义,季学武,瞿文龙,等. 一种新颖的基于死区时间在线调整的SVPWM补偿算法[J],2010, 2010.
APA	何正义,季学武,瞿文龙,He Zhengyi,Ji Xuewu,&Qu Wenlong.(2010).一种新颖的基于死区时间在线调整的SVPWM补偿算法..
MLA	何正义,et al."一种新颖的基于死区时间在线调整的SVPWM补偿算法".(2010).

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