作者: Ping-Yi Lin , Yen-Shin Lai
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摘要: This paper presents a new voltage control technique which extends dc-link utilization for finite-speed surface-mounted permanent magnet synchronous motor drives. Therefore, significantly increasing the output power and torque under flux-weakening operation can be achieved. The switching period summation of active times inverter pulsewidth modulation are used to modify -axis current reference region such that trajectory extended move hexagon space vector modulation, thereby extending voltage. Moreover, it will shown proposed has some additional special features, as not sensitive parameter, no need feedback, lookup table. presented method is realized by software does require hardware. Comparisons experimental results confirming technique.