基于ZigBee新型太阳能LED路灯控制器设计.pdf

Smart Grid 智能电网, 2012, 2, 10-15 doi:10.4236/sg.2012.21003 Published Online March 2012 (/journal/sg) Design of a New Solar LED Lamp Controller * Based on ZigBee Yongsheng Lian, Shuying Cheng College of Physics and Information Engineering, Institute of Micro-Nano Devices Solar Cells, Fuzhou University, Fuzhou Email: chengsying@ Received: Dec. 1st, 2011; revised: Dec. 10th, 2011; accepted: Dec. 20th, 2011 Abstract: There are some problems in photovoltaic lighting systems, such as low efficiency, instabilities, short battery life, etc. To solve these problems, a novel type of ZigBee solar street lamp controller with wireless networking function is designed in this paper. The controller consists of five main parts: charging circuit, sensor module, LED driving circuit, wireless communication module and power management module. The real-time working state of battery is monitored and switched accurately to improve the efficiency of charging. Perturbation and Observation Method is used to realize maximum power point tracking (MPPT) of the solar panel. A constant-current control is taken to achieve energy-saving. The networking strategy combined ZigBee, GPRS, Internet is applied, so the solar lamps can establish network by themselves and be monitored and controlled by remote center. By testing the experimental result, it is proven that the solar LED lamps with this new controller can operate efficiently, stably, and be managed intelligently. It has a broad application prospect. Keywords: ZigBee; Charging Control; MPPT; Constant-Current Control; Networking Monitor 基于ZigBee 的新型太阳能LED 路灯控制器设计* 连永圣，程树英 福州大学物理与信息工程学院，微纳