The Design of High Power Motor Driver with Intelligent Protection Functions

• Main Authors: Chang-Hsien Yang, 楊昌憲
• Other Authors: Lon-Kou Chang
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/69253965039462805933

碩士 === 國立交通大學 === 電機與控制工程系 === 91 === This thesis proposes a complete design of the high power motor driver. The whole design includes a full-bridge rectifier which can convert alternating current into direct current, an inverter for driving motor, and the circuits for current and position feedback. The maximum power of the motor driver is 4650 watt, since large noise will be generated in high power operation, proper circuit design and layout technique for eliminating noise are also the important studying items in this thesis. The inverter is designed to operate with 220 ac line voltage. Therefore, IGBTs, which can bear high voltage and high current, are used as power switches of the inverter. However, the requirement of high power output operation also brings the inverter to an unsafe situation that the inverter may be burnt out under improper operation. Therefore, a circuit with current limit, over-temperature, over-line voltage and short-circuit protection functions is proposed in this thesis. The experiment results have taken and compare to the results from a commercial inverter. The results show that our inverter works very as well as our expectation.