Simulation on Step-Mode InverterVoltage Regulator Technology of Independent DC

doi:10.16182/j.issn1004731x.joss.201801011

Abstract

Abstract: Pulse width modulation (PWM) is employed to control the delivery of independent power supply,and applied in the field of inverter with combination of the ladder wave modulation technology.The closed loop control of output voltage is realized by changing the PWM duty cycle with the PI controller. The output voltage of the inverter can be automatically adjusted by the set value, which enables the application in power system and medium/large power motor speed control system.This article introduces the topology of step-mode inverter and design method of 31-levelinverter.The step-mode inverter has characteristics of simple circuit structure, flexible control mode, fewer power electronic devices, and good performance of output waveform.

Key words: step-mode inverter, PWM, PID controller, independent DC, closed-cycle control

CLC Number:

TM614

Liu Ximei, Li Xiao, Sun Qingle. Simulation on Step-Mode InverterVoltage Regulator Technology of Independent DC[J]. Journal of System Simulation, 2018, 30(1): 91-95.

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