公开(公告)号：US20160294316A1

公开(公告)日：2016-10-06

申请号：US14877943

申请日：2015-10-08

Applicant: RHYMEBUS CORPORATION

Inventor： Ming-Shi HUANG ,  Chang-Ming WANG ,  Kuan-Cheng CHEN ,  Ming-Chang CHOU

IPC: H02P27/08

CPC classification number: H02P27/08 ,  H02M1/4216 ,  H02M3/1582 ,  H02P23/26 ,  H02P29/50 ,  H02P2201/07 ,  H02P2201/15 ,  Y02B70/126 ,  Y02P80/116

Abstract: AC motor driving system and driving method thereof are provided. The driving system and method are capable of increasing power factor, adjusting waveform of the DC ripple voltage for increasing driving efficiency. The driving system is basically constructed by connecting three circuits. The first circuit is a three-phase full wave rectifying circuit and is used to transfer commercial electricity to a first DC voltage. Then, the second circuit is used to transfer the first DC voltage to a second DC voltage that ripples voltage thereof having a semi-sinusoidal waveform. The third circuit is an AC driving circuit, and receives the second AC voltage for driving the AC motor. Thereby, the driving efficiency can be increased. The capacitance used in the present disclosure has low capacitance value, thus the power factor can be increased, and usage time of the AC motor driving apparatus can also be increased.

Abstract translation: 提供交流电动机驱动系统及其驱动方法。 驱动系统和方法能够提高功率因数，调整直流纹波电压的波形，提高驱动效率。 驱动系统基本上通过连接三个电路构成。 第一电路是三相全波整流电路，用于将商用电力转移到第一直流电压。 然后，第二电路用于将第一直流电压传送到具有半正弦波形的波纹电压的第二直流电压。 第三电路是AC驱动电路，并且接收用于驱动AC电动机的第二AC电压。 由此，能够提高驱动效率。 本公开中使用的电容器具有低电容值，因此可以提高功率因数，并且还可以增加AC电动机驱动装置的使用时间。