Low Voltage Reactive Power Compensation And Realization

This paper introduced the principle and objective of var compensation, present the model of reactive power optimization planning about low voltage system. According as radiant or other power system, the compensatory capability was gained. On real time compensation, aimed at different load condition, based the former research, this paper deduced the linear integer model for capacitor switching and gave the resolving. And introduced the simple model direct on reactive power to some load where the reactive power changed rapidly.This paper analyzed the function of harmonic currents about parallel connection capacitor to power system. And analyzed the harmonic currents effect on "Y" or "triangle" connection.An intelligent device was designed for var compensation. The device took the 80C196KB singlechip micro-controller as main control chip, took reactive power as control target and took voltage as restricting condition. In this paper, it expounded the principle and electric circuits of hardware, the design of software and some program.