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基于嵌入式的分布式电源节能控制系统的设计与实现

2017-04-10蒋俊祁

现代电子技术 2017年6期

蒋俊祁

摘 要: 分布式电源改变了传统节能调度方法的刚性特征,使传统节能调度模式无法适应分布式电源的功耗管理的多样性需求,节能效果较差。因此,设计基于嵌入式的分布式电源节能控制系统,系统中的控制器通过温度采集模块获取电源温度,传递给控制执行电路,调控电源运行状态。充电电路将采集到的蓄电池电压值反馈给控制器,微控制器对电压值进行A/D变换,按照蓄电池电压值分析蓄电池电量,对蓄电池充电、放电过程进行管理。通过CAN总线接口,完成CAN总线数据的收发,实现电源功耗的网络化远程控制。软件设计中,给出LPC11C14控制器软件流程,电源控制软件流程图以及关键代码。实验结果表明,所设计系统对分布式电源进行节能控制的控制能力高、节能效果显著。

关键词: LPC11C14; 分布式电源; 节能控制; 温度采集模块

中图分类号: TN86?34; TP211 文献标识码: A 文章编号: 1004?373X(2017)06?0088?05

Abstract: Distributed power has changed the rigidity characteristic of the traditional energy saving scheduling method, which makes the traditional energy?saving scheduling mode unable to meet the needs of the diversity of power consumption management of distributed power supply, and makes the energy?saving effect poor. Therefore, a distributed power supply energy?saving control system based on embedded controller was designed. The system controller collects power supply temperature through the temperature acquisition module, and transmits it to the control execution circuit to regulate and control the power supply running state. The charging circuit is used to feed the collected battery voltage value back to the controller. The micro?controller is used to execute the AD conversion of voltage value, and analyze the battery electric quantity according to the battery power voltage to supervise and control the battery charging and discharging process. The CAN bus data transceiving is achieved through CAN bus interface to realize the power network remote control of the power consumption. In the Paragraph of Software Design, LPC11C14 controller software flow, power control software flow chart and key code are given. The experimental results indicate that the designed system has a better ability of energy?saving control for distributed power supply.

Keywords: LPC11C14; distributed power; energy saving control; temperature acquisition module

0 引 言

随着社会经济的快速发展,电源系统在人们的生产和生活中具有重要应用价值,但是其对电力的供应和环境污染带来了较大的威胁。节能、环保成为当前电源的主题。分布式电源具有近距离供电、降低集中输变电成本、增强供电稳定性等优点,在电网中具有重要的应用价值[1?2]。智能化、分布式电源节能控制系统是当前提倡环保、节能大背景下的一项重要应用技术。因此,寻求有效方法对分布式电源系统进行节能控制,成为当前相关人员分析的热点方向[3?5]。

以往的电源节能控制方法存在一定的弊端,如文献[6]提出了组合式补偿的电源节能控制方案,对输入电源的功率变化进行组合式补偿,完成电源功率的控制。……

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