Title :
A control strategy of three-phase PWM inverter with fluctuating input voltage
Author :
Funabiki, Shigeyuki
Author_Institution :
Dept. of Electr. & Electron. Eng., Okayama Univ., Japan
Abstract :
A digital control strategy for the three-phase PWM inverter is proposed for a sinusoidal output with a fluctuating input voltage. The pulse width is computed by sampling and predicting the fluctuating input voltage every time the pulse generates. Three predictive methods are proposed. The errors and the waveform distortion of the output voltage are analyzed and discussed, along with the proposed predictive methods. The validity of the control method was experimentally verified using a microprocessor-based control system.<>
Keywords :
computerised control; invertors; microcomputer applications; pulse width modulation; 3-phase PWM invertor; digital control; fluctuating input voltage; microprocessor-based control system; sinusoidal output; Control systems; Digital control; Frequency; Leg; Pulse inverters; Pulse width modulation inverters; Space vector pulse width modulation; Switches; Voltage control; Voltage fluctuations;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96790
