继电器控制在智能电表中的应用

Application of Relay Control in Smarter Meters

随着智能电网的建设,智能电表的应用也越来越广泛。磁保持继电器是智能电表的重要控制部分,单片机通过读取智能电表的当前状态来控制继电器H桥驱动电路,实现继电器的切换。该文针对继电器驱动电路做了降成本方案设计,并在原理上做了详细说明。在控制方面,各个国家和电力局都会提出特殊要求,针对国外某电力局提出的特殊拉闸方式,该文在电路上做了巧妙的设计方案,并对电路进行了详细说明和分析,结合软件设计满足了技术需求,并很好地应用于电力控制系统中。

With the construction of smart grid,smart meter applications are more and more widely. Magnetic latching relay is an important part of the smart table,the MCU read the current state of the smart meter to control the relay H bridge drive circuit to achieve the relay switch. A cost reduction scheme is designed for the relay driver circuit,and the principle is described in this article. Each country and the electric power bureau will make the special request in control. This article did a clever circuit design for special switch mode for a foreign power bureau,the circuit was described and analyzed in detail,meet the technical requirements,and applied in the electric control system very well.