Different types of PWM strategies have been used in speed control of SPIMD's, most widely sinusoidal PWM & space vector PWM strategies. Recently remarkable efforts have been made in adjustable speed-single phase induction motor drives (SPIMD's). In home appliances and in small scale industries, single phase induction motors are commonly used. The converter is mainly used, where load is very sensitive (battery-powered products), it provides variation of _1% only. In this work simulation and then hardware implementation is done with results. In this converter IGBT switch is digitally controlled by PIC microcontroller. In order to control the output voltage of the converter, the controller is designed to change the duty cycle of the converter. It requires power supplies with high efficiency, low cost and smaller size. Meanwhile, the demand for compact power supplies grows significantly. Rising energy intensity leads to a higher cost of delivering power and low power density. The converters are electronic devices, it has an output voltage magnitude that is either greater than or less than the input voltage magnitude. DC converters are devices designed specially for the purpose of changing DC voltage levels efficiently. Many existing and developing electrical and electronic technologies require voltages of different levels supplied from a singular available source voltage such as a battery.
0 kommentar(er)
