MOTOR DRIVING SYSTEM

• Main Authors: YOSHIZU RIKIYA, HARA TAKAFUMI, AJIMA TOSHIYUKI, AOYAGI SHIGEHISA
• Format: Patent
• Language: English; Korean
• Published: 05.11.2015
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MOTOR VEHICLES; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; TRAILERS; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLE SUSPENSION ARRANGEMENTS; VEHICLES IN GENERAL

The present invention is to provide a driving system of a synchronous motor which reduces vibration caused by a time secondary element of a radial electron exciting force of a three-phase synchronous motor, and controls a d-axis current and a q-axis current to reduce noise generated by resonance of a vibrating device accompanying the vibration. The motor driving system of the present invention has a q-axis current value or less, allows a minus d-axis current to flow with respect to a motor d-axis inductance approximately matches q-axis inductance, allows a minus d-axis current to flow with respect to a motor where the d-axis inductance is different from q-axis inductance, and increases the q-axis current and the minus d-axis current together. 본 발명의 과제는, 3상 동기 전동기의 직경 방향 전자 가진력의 시간 2차 성분에 의한 진동을 저감하고, 진동에 수반하는 기구와의 공진에서 발생하는 소음을 저감하도록, d축 전류와 q축 전류를 제어하는 동기 전동기의 구동 시스템을 제공하는 것이다. 본 발명의 모터 구동 시스템은, 소정의 q축 전류값 이하이고, d축 인덕턴스와 q축 인덕턴스가 대략 일치하는 모터에 대해서는 소정의 마이너스의 d축 전류를 흘리고, d축 인덕턴스와 q축 인덕턴스가 다른 모터에 대해서는 소정의 마이너스의 d축 전류를 흘리고, q축 전류의 증대와 함께 상기 마이너스의 d축 전류를 증대시킨다.