复合型晶闸管投切电容器装置设计  

The Design of Compound Thyristor Switched Capacitor Device

作　　者：农为踊[1] 程汉湘[1] 陈发纲[1] 周海霞[2] 

机构地区：[1]广东工业大学自动化学院,广东广州510006 [2]中水北方勘测设计研究有限责任公司,天津300222

出　　处：《电力电容器与无功补偿》2009年第6期45-47,65,共4页Power Capacitor & Reactive Power Compensation

摘　　要：为了解决晶闸管投切电容器成本高,导通损耗大等问题,笔者结合无触点开关和交流接触器各自的优点,设计了一种由单片机80C196KC控制的复合型晶闸管投切电容器装置,并且分析了晶闸管投切电容器装置常用主电路的特点,介绍了该装置主电路的结构特点、信号检测、晶闸管电压过零检测、触发电路以及电容器投切时刻的选择等关键问题的解决方案。In order to solve the problem of high cost of TSC and conduction losses, the authors combine respective advantages of non-contact switch and AC contactor, design a kind of compound thyristor switched capacitor device controlled by the microcontroller 80C196KC, and analyze the main circuit characteristics of the TSC device. This article also introduces solutions to such key issues as structural characteristics, signal detection, thyristor voltage zero-crossing detection, trigger circuit, selection of capacitor switching time of main circuit.

关 键 词：晶闸管投切电容器 复合开关 80C196KC 过零触发 

分 类 号：TM761[电气工程—电力系统及自动化]