电网信息化运维模式方案及优化

摘要

In this paper,the current transformer(CT)is used to get power from the high voltage transmission line directly,so as to solve the power supply problem of the transmission line high voltage side monitoring system under the information operation and maintenance mode of the power grid. The output power of coil induced voltage from the transmission line,the analog output pulse width modulation(PWM)wave control using SCM charging module,3.4V provides a stable voltage for the load,easy to solve the core problem of saturation,power grid operation mode optimization scheme of information. The power supply based on the output power coil is tested comprehensively,and it is verified that it can work normally in the current range of 50-1000A,and it can pro?vide stable output. The protection circuit is also designed to improve the reliability of power grid operation and maintenance,and ef?fectively solve the power supply problem of grid information operation and maintenance online monitoring system.%论文利用电流互感器(CT)直接从高压输电线路获取电能,解决电网信息化运维模式下输电线路高压侧监控系统供电问题.取能线圈可以从传输线诱导电压,利用单片机模拟输出脉冲宽度调制(PWM)波控制充电模块,为负载提供稳定的3.4V直流电压,解决了核心容易饱和的问题,优化了电网信息化运维模式方案.基于这种取能线圈的电源进行全面的测试,并验证了它能在50-1000A的电流范围内正常工作,且可以提供稳定的输出.论文还设计了保护电路,以提高脉冲电流或短路电流对电网运维的可靠性影响,有效地解决了电网信息化运维在线监测系统供电问题.