The Software Design of Var Compensator Used in Low Voltage Distribution System

Reactive power compensation is meaningful for the stable and economic running of the electric power system. As the development of electrical and electronics technology and the instantaneous reactive power theory, an advanced static Var generator (SVG) which adopts self-adaptive phase AC circuit appears. A new SVG used in low voltage distribution system is designed in this paper. It mainly introduced the software of this system, including: 1) PWM pulse generator; 2) Design of the grid frequency tracing module; 3) A/D conversion module.