Title :
Boosting the fundamental output voltage in delta modulated inverters
Author :
Maswood, Ali I. ; Rahman, M.A.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
fDate :
12/1/2000 12:00:00 AM
Abstract :
This letter presents an improved delta modulator with a proportional integral controller that generates a switching pattern that can handle inverter switching requirements with minimum complexity. The new delta modulator also optimizes the slope of the feedback signal, window width, and magnitude of the delta modulator (DM) reference signal. It has been found that proper selection of these parameters plays a vital role in the design of voltage source inverters with special applications in adjustable speed drives.
Keywords :
DC-AC power convertors; control system synthesis; delta modulation; invertors; switching circuits; two-term control; voltage control; VSI; adjustable speed drives; delta modulated inverters; delta modulator reference signal magnitude; feedback signal; fundamental output voltage boosting; inverter switching requirements; proportional integral controller; switching pattern generation; voltage source inverters; window width; Boosting; Circuits; Delta modulation; Feedback; Frequency; Inverters; Pi control; Proportional control; Resistors; Voltage control;
Journal_Title :
Power Engineering Review, IEEE
