A Study of PWM Digital Technologies for Static Var Generator Based on FPGA Technology

Abstract

Digital pulse width modulation can improve the output accuracy of PWM control signal, shorten the response time of SVG device, and increase the safety and stability of the system. Combined with the characteristics of the inverter circuit of high-power static var generator, this paper studies the digital theory of sinusoidal pulse width modulation (PWM). The full digitalization framework of field programmable gate array (FPGA) is constructed, and the realization method of regular sampling PWM digitalization is studied. This paper uses very high speed integrated circuit hardware description language (VHDL) and Xilinx XC6SLX16 FPGA chip to program the theoretical research content. The experimental results prove the correctness and feasibility of the digital theory in this paper.