새로운 변형 Trapezoidal PWM 인버어터 제어회로 개발

다국어 초록 (Multilingual Abstract)

It is suggested that the PWM inverter is controlled by Digital Software Programming.
VVVF(Variable Voltage Variable Frequency) inverter control being used by PWM control for driving the motor with speed-varying, makes the PWM pattern with calculation the output voltage and frequency, and with controlling the carrier and signal, so actually this method is difficult to correspond with driving the motor by using voltage-varying and frequency-varying.
Therefore this research suggested the new algorithm controlled by micro processor which is already stored by various PWM form of output voltage by using fundamental data of the carrier and signal.
The determined PWM pattern is not concerned with the signal wave form and the new algorithm can obtain the desired pulse width by synchronous of carrier.
The PWM wave can be controlled with real time by using extra hardware and digital software and to speed up program processing, the control signals to switch the power semi-conductor of three phase PWM inverter, simultaneously use the output signal by microprocessor and extra hardware, and control signal by software.
In the endl, this method was proved by applying to Three Phase Voltage-type Inverter.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 인버어터 디지털 제어
• 3. 실험 및 고찰
• 4. 결론
• 참고문헌