公共自行车租赁系统智能电源设计

发布时间：2018-03-22 15:11

本文选题：光伏储能　切入点：同步整流　出处：《安徽大学》2017年硕士论文　论文类型：学位论文

【摘要】：本文针对传统的公共自行车租赁系统电源所存在的问题,设计出基于光伏储能技术的智能电源。光伏发电系统,利用的是可再生资源太阳能,使公共自行车租赁系统不再消耗电网能量,能够节省大量电能,符合节能减排绿色环保的要求。通过两节电池串联将电压提升到21.6V至27.6V之间。然后通过同步整流BUCK电路将电压稳定在12V。同步整流的BUCK电路具有损耗低、运行效率高的特点。电源自带GPRS无线通信模块以及485接口,便于远程控制和监控,便于实时维护,从而实现智能管理。本文的主要介绍了我国公共自行车系统发展历程,以及发展的状况。分析了公共自行车租赁系统电源所存在的问题与智能电源研究的意义,光伏发电原理,蓄电池充放电原理,同步整流BUCK电路拓扑结构及工作原理。同时对智能电源的控制策略进行相应的仿真和分析。包括电池充放电策略,MPPT控制策略,同步整流BUCK电路控制策略。根据理论基础和控制策略,设计智能电源系统。主要包括硬件系统和软件系统的设计。硬件系统设计包括CPU方案,控制器供电单元,光伏充电控制单元,电池供电单元,通信单元,液晶显示单元,其他电路。智能电源的软件设计包括主程序,光伏充电控制子程序,同步整流控制放电程序,电压,电流采样控制子程序,按键、显示屏控制子程序。在实验平台的上对样机进行相应的实验,最后经过测试结果的分析。
[Abstract]:According to the existing public bicycle rental system problems of the traditional power supply, design of intelligent power photovoltaic energy storage technology based on the photovoltaic power generation system, the use of solar energy is a renewable resource, the public bicycle rental system no longer consumes energy, can save a lot of energy, energy-saving emission reduction in line with the requirements of green environmental protection. Through two batteries series the voltage up to 21.6V to 27.6V. Then through the synchronous rectifier BUCK circuit for voltage stability in BUCK circuit 12V. synchronous rectifier with low loss, high efficiency characteristics. The power supply with GPRS wireless communication module and the 485 interface for remote control and monitoring, real-time maintenance, so as to realize intelligent management. This paper mainly introduces the the development process of China's public bicycle system, as well as the development of the situation. Analyzes the existing power public bicycle rental system. Intelligent power supply problem and the significance of the study, principle of photovoltaic power generation, battery charging and discharging principle, synchronous rectifier BUCK circuit topology and working principle of intelligent power control strategy. At the same time, the corresponding simulation and analysis. Including the battery charge and discharge strategy, MPPT control strategy, synchronous rectification BUCK circuit control strategy based on the basic theory and control. Strategy design of intelligent power system. It mainly includes the design of hardware system and software system. The hardware design includes CPU program controller, power supply unit, photovoltaic charging control unit, a battery power supply unit, communication unit, liquid crystal display unit, other circuit. Software design of intelligent power supply including the main program, the PV charging control subroutine, synchronous rectifier to control the discharge process, voltage and current sampling control subroutine button, display control subroutine. The corresponding experiments on the sample machine in the experiment platform, Finally, the test results are analyzed.

【学位授予单位】：安徽大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN86;U491.225

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