智能无功补偿器的设计和实现

Design and Implementation of Intelligent Compensator for Reactive Power

针对电力系统中无功补偿装置的发展现状,通过对无功补偿原理和方式的分析研究,设计了基于PIC18F4520单片机的智能无功功率补偿控制仪。该控制仪以九域图原理作为投切电容器的依据,并通过RS-232/485串行口与GPRS模块连接,实现与主控中心进行实时数据的传输和交换。实测应用证明,该系统避免了复杂的参数计算,简化了系统结构,且价格低廉、软件编程简单、抗干扰能力强。

In accordance with the current status of reactive power compensation in electric power system,through analysis and research on the compensation principle and mode,the compensation controller based on PIC18F4520 single chip computer has been designed.The controller adopts the nine-zone graphic theory as the criteria of connecting or disconnecting the capacitor,and through RS-232/485 serial port to connect with GPRS module to implement real-time data transmission and exchange with main control center.The real test verifies that the complicated calculation of the parameters is avoided by the system;and the systematic structure is simplified.The system features low cost,ease programming and offers high anti-interference capability.