具有功率要求的开关量采集回路设计和实现  

Design and Implementation of Switch Data Acquisition Circuit with Power Requirement

作　　者：吴焱[1] WU Yan(Guodian Nanjing Automation Co.,Ltd.,Nanjing 210003,China)

机构地区：[1]国电南京自动化股份有限公司,江苏南京210003

出　　处：《电工技术》2021年第8期131-133,共3页Electric Engineering

摘　　要：由于变电站中控制电缆具有分布电容等原因,可能有误开入动作的风险。为了应对此问题,介绍了一种带功率要求的开关量采集回路解决方案,并对回路的设计原理做了详尽说明,同时对回路进行了仿真和实物验证。由于此回路具有使用的器件简单、模块体积较小、功耗小等优点,可方便地集成到继电保护装置中,具有很好的实际应用价值。Due to the distributed capacitance of the control cable in the substation,there may be the risk of misoperation.In order to cope with this problem,a solution for switching value acquisition loop with power requirements is introduced.The design principle of the loop is introduced in detail,and the loop is simulated and verified by the physical object at the same time.Because this circuit has the advantages of simple devices,small module size and low power consumption,it can be easily integrated into the relay protection device,and has good practical application value.

关 键 词：功率开入量采集 微机保护 长电缆 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]