无线型无功信号采集器的设计与开发

DESIGN AND DEVELOPMENT OF A WIRELESS REACTIVE POWER SIGNAL ACQUIRING DEVICE

无功补偿是降低电网损耗、提高输配电效率的有效手段。在对当前农电网户外柱上无功补偿的现状分析利弊的基础上,提出了测量点与补偿点相分离的自动补偿方式。为降低无功测量装置的成本,借鉴自给式电流传感器的设计思想,并结合单片机应用技术和无线通信技术设计了无线型无功信号采集器。利用电磁感应原理和静电感应原理取得电流、电压信号,经单片机处理后得到功率因数值,再由无线发射模块传出。从而为解决配电网分支线路无功参数不易测量的问题提供了新的方法。

Reactive power compensation is an effective measure to reduce power system loss and improve its efficiency. Based on an analysis of the advantages and disadvantages of reactive power compensation on the outdoor poles used in rural power systems, an automatic compensation measure of detaching the measuring position from the compensation position is proposed. In order to reduce the cost of the reactive power measure device, in the reference of the design idea of the self-supported current sensor and combining it with the technique of applying the SCM and wireless communication technology, a wireless reactive power signal acquiring device is designed. According to the electromagnetic induction principle and electrostatic induction principle, the voltage signal and current signals are received and transmitted by a wireless transmission module after obtaining the power factor value by SCM processing, providing a new method for solving the problem of measuring the reactive parameters of offset lines in the distribution network.