太阳能光伏汇流箱监测系统设计

光伏汇流箱是光伏发电的重要组成部分,主要用于太阳能光伏组件与直流控制柜间的连接。文中设计的光伏汇流箱主电路以单片机STC12C5A60S2为控制核心,由电流检测电路、温度检测电路、通信电路和电源电路等组成,主要实现光伏汇流箱温度检测;利用霍尔传感器实现了太阳能光伏组件阵列的电流巡检;同时利用DC-DC原理实现了高电压到低电压的转换,并以此为主控电路提供电源。此外,还实现了光伏汇流箱与PC机的通信。该设计简单实用,且具有成本低、可靠性高的优点。

Design of a Solar Photovoltaic Junction Box Monitoring System

Photovoltaic junction box plays an important role in photovoltaic power,which is mainly used for the connection between solar photovoltaic component and the DC control cabinet.The main circuit of photovoltaic junction box designed in this paper uses the single chip microcomputer STC12C5A60S2 as the control core,consisting of the current detection circuit,temperature detection circuit,communication circuit and power supply circuit,so as to achieve the photovoltaic junction box temperature detection.The Holzer sensor is used to make the current patrol of the solar photovoltaic module array;DC-DC principle is used to achieve the conversion of high voltage to the low voltage,and provides power for the main control circuit;in addition,the communication of photovoltaic junction box with the PC is achieved.The design is simple and practical with the advantages of low cost and high reliability.