站用磷酸铁锂直流操作电源的研究与应用  

Research and application of lithium iron phosphate DC operating power supply for substation

作　　者：赵景 张伟刚[2] ZHAO Jing;ZHANG Weigang(Henan Network Engineering Intelligent Service Engineering Research Center,Xuchang 461000,China;Xuchang Vocational Technical College,Xuchang 461000,China)

机构地区：[1]河南省网络工程智能服务工程研究中心,河南许昌461000 [2]许昌职业技术学院,河南许昌461000

出　　处：《现代电子技术》2025年第6期68-72,共5页Modern Electronics Technique

基　　金：2021年河南省高等学校重点科研项目计划立项项目:基于无线组网技术的花园智能生态管理系统的研究(22B520030);许昌职业技术学院“5G工程技术中心”科研平台;2023年度河南省职业教育教育教学改革研究项目(省级重点)《新课标背景下高职《信息技术》课程改革与实践》(豫教(2024)05760)。

摘　　要：为了解决磷酸铁锂电池在直流操作电源中长期浮充和运维工作量大的问题,提出一种适用于此系统的控制策略。首先,给出磷酸铁锂直流操作电源的主电路拓扑结构,阐述其运行工作原理;然后,提出间歇式充电控制策略,避免电池长期处于浮充状态,并引入有源并网放电技术的放电控制以降低电池运维工作量,通过串联二极管的温控风冷散热设计,实现了负荷的独立不间断供电;最后,根据系统运行工况的分析,给出系统电压和电流参数的运行变化曲线。研制了站用磷酸铁锂直流操作电源系统样机,实验结果表明,所提控制策略正确且有效,可为磷酸铁锂电池在变电站的应用及推广提供参考。In order to solve the problem of long-term floating charge and large operation and maintenance workload of lithium iron phosphate battery in DC operating power supply,a novel control strategy suitable for this system is proposed.The main circuit topology of lithium iron phosphate DC operating power supply is given,and its operating principle is described.The internal charging control strategy is proposed to avoid the battery being in floating charging state for a long time,and the discharge control of active grid-connected discharge technology is introduced to reduce the workload of battery operation and maintenance.The independent uninterrupted power supply of the load is realized by means of the temperature controlled and aircooled heat dissipation design with series diode.According to the analysis of the operating condition of the system,the operating curves of the system voltage and current parameters are given.The prototype of the lithium iron phosphate DC operating power supply for substation is developed.The experimental results show that the proposed control strategy is correct and effective,which can provide reference for the application and popularization of lithium iron phosphate battery in substation.

关 键 词：磷酸铁锂电池 直流操作电源 有源并网放电技术 间歇式充电 核容式放电 独立不间断供电 

分 类 号：TN86-34[电子电信—信息与通信工程]