微机型PT并列及切换装置的设计与实现  

The Design and Implementation of PT Juxtaposition and Switch Device

作　　者：丁健[1] 

机构地区：[1]合肥学院电子与电气工程系,合肥230601

出　　处：《电气技术》2010年第8期125-128,共4页Electrical Engineering

摘　　要：本装置是针对电厂、变电站自动化等系统的要求设计而成。本设计介绍了以高性能单片机ATMEGA64为核心的PT并列及切换装置系统,系统根据电压互感器实时采样PT二次回路的各相电压及零序电压,采取必要的抗干扰措施,按照傅立叶变换算法对采集的两路PT的电压值进行处理,并通过LCD实时显示两路PT的八相电压值,然后本装置根据测量的结果,结合PT的过、低压等到各种保护措施和PT切换相关条件,进行实时处理,如通过指示灯发光来报警、通过继电器驱动相关装置发出相应动作以达到告警、保护和切换的各项功能。The device is targeted at power plants,substation automation systems from the requirements of design,Introduced to the design of high-performance single-chip microcomputer as the core ATMEGA64 the PT switching device protection and intelligence systems,the system basis phase voltage transformer real-time sampling PT secondary circuit various phase voltages and the zero foreword voltage,takes the essential antijamming measures,in accordance with the Fourier transform algorithm to the two collection PT values of the voltage processing,and real-time through the LCD display of the eight two-phase PT voltage value,and then the device in accordance with the results of measurements,combined with the PT,the low-voltage protection measures and wait until the PT switching conditions,real-time processing,If the LED indicator light to come through the police,through the relay device driver related issue the corresponding actions to achieve the alarm,protection and switching functions.

关 键 词：PT并列 电压切换 ATMEGA64 电压互感器 TV1013 通信接口 

分 类 号：TM762[电气工程—电力系统及自动化]