摘要
针对SVPWM调制的VSI的死区效应,该文提出了一种对一相电路进行补偿的方法。利用电流重构技术,判断电流在两相静止坐标系所处的扇区决定所要施加的补偿信号,提高电流极性检测的准确性。此外,采用了一种新颖的补偿策略用于抑制零电流钳位现象。通过TMS320F2808DSP芯片实现补偿算法,并在1kW永磁同步电机控制系统中验证了死区补偿算法的有效性,结果表明该补偿方法具有很好的低速性能。
For the dead-time effect of SVPWM modulation VSI,this paper proposes a compensation method which only uses one phase circuit.The paper determines the compensation signal by current reconstruction techniques.In addition,a novel compensation strategy is used to suppress the phenomenon of zero current clamping.The proposed compensation method is realized with TMS320F2808 DSP chip.Experimental results demonstrate the feasibility of the dead-time compensation method in 1kW vector controlled PMSM drive system.
出处
《杭州电子科技大学学报(自然科学版)》
2012年第6期101-104,共4页
Journal of Hangzhou Dianzi University:Natural Sciences
作者简介
任彧(1963-),男,浙江上虞人,教授,计算机智能控制.