Invention Grant
- Patent Title: Driving apparatus and method of three phase induction motor
- Patent Title (中): 三相感应电机的驱动装置及方法
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Application No.: US10414400Application Date: 2003-04-16
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Publication No.: US06876171B2Publication Date: 2005-04-05
- Inventor: Jae-Choon Lee
- Applicant: Jae-Choon Lee
- Applicant Address: KR Seoul
- Assignee: LG Electronics
- Current Assignee: LG Electronics
- Current Assignee Address: KR Seoul
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: KR10-2002-0063555 20021017
- Main IPC: H02M7/12
- IPC: H02M7/12 ; H02M1/14 ; H02M5/458 ; H02P27/06 ; H02P29/00 ; H02P1/26 ; H02P5/34 ; H02P7/36

Abstract:
A driving apparatus of a three-phase induction motor includes: a three-phase power supply unit for supplying three-phase power; a rectifier for rectifying the three phase voltage supplied from the three phase power supply unit; a voltage reducing unit for reducing a DC voltage generated from the rectifier and outputting a stabilized DC voltage; and an inverter unit for varying the DC voltage outputted from the voltage reducing unit to a three-phase AC voltage and driving a three-phase induction motor. A power-factor degradation generated during supplying a DC voltage to the inverter to drive the three-phase induction motor is prevented, a harmonic wave is removed, and because a high-priced inverter component is not necessary, its relevant expense is reduced.
Public/Granted literature
- US20040075414A1 Driving apparatus and method of three phase induction motor Public/Granted day:2004-04-22
Information query
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