| 引用本文: | 姚舜,罗安,范瑞祥,唐杰.低压配电网智能无功补偿系统软硬件设计[J].电力自动化设备,2006,(12):90-93 |
| .Software & hardware design of intelligent var compensation system for low-voltage distribution system[J].Electric Power Automation Equipment,2006,(12):90-93 |
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| 摘要: |
| 根据晶闸管投切并联电容器（TSC）的无功补偿原理，介绍了以16位工业级单片机80C196KC为核心的智能无功优化控制器。该控制器硬件由单片80C196KC、存储器与I／O接口、电量测量、温度检测、执行机构、键盘／液晶显示器、通信等模块组成。控制器软件采用模块化结构设计．使用KC196汇编语言编程，包括显示、模数转换、看门狗、键盘扫描、参数计算、投切电容、通信等模块。该智能无功优化控制器采用电压一无功综合补偿自适应控制方式．在满足电压合格的前提下使功率因数最优为目标函数，根据低压配电网的电压和无功功率变化，具备自动调整相关控制系统参数以实现控制目标的能力。实现电客先投先切的功能。并且可避免投切振荡和过补偿。该控制器装置挂网运行后．效果良好。 |
| 关键词: TSC 无功补偿 电能质量 80C196KC |
| DOI： |
| 分类号:TM761.1 TP399 |
| 基金项目:国家863引导计划项目（2004AA001032） |
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| Software & hardware design of intelligent var compensation system for low-voltage distribution system |
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YAO Shun LUO An FAN Rui-xiang TANG Jie
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| Abstract: |
| According to the reactive power compensation theory of TSC(Thyristor Switched Capacitor),an intelligent reactive power compensation controller based on 16-bit Intel 80C196 KC is introduced.Its hardware is composed of modules:80C196 KC,memorizer and I /O interface,parameter measuring,temperature detection,actuator,keyboard /liquid crystal display,communication and so on.Its soft-ware is modularized and programmed with KC196 assemble language,including modules of display,analog-to-digital conversion,watchdog,keyboard scanning,parameter calculation,capacitor switching,communication and so on.It uses adaptive control of integrated V-var compensation,taking the optimal power factor as objective function with the precondition of qualified voltage.According to voltage and var changes in low-voltage distribution system,the controller adjusts automatically parameters of control system to approach the optimal objective:switching on /off the capacitor first to avoid oscillation and over compensation.The site operation proves its effectiveness.This project is supported by the National High Technology Research and Development Foundation of China(863 Program)(2004AA001032). |
| Key words: TSC reactive power compensation power quality 80C196KC |
