摘要
设计和开发了一套对电动汽车充电站进行监测、分析和评估的系统。该系统采用基于PCI总线的多DSP设计结构,硬件由多DSP采集终端、车载终端、嵌入式工控机和接口电路组成。实时采集充电站公共连接点和各充电机的电压、电流,以此计算出各项电能质量数据,通过PCI总线汇集各项监测数据后对变压器、充电机的运行特性进行分析。利用GPRS接收电动汽车运行状态和充电信息,采用雷达图法对电动汽车状态进行综合评估,并统计分析电动汽车起始充电时间、起始荷电状态和日行驶里程的概率分布。实际挂网运行结果表明,该系统稳定可靠,能为充电站的运行与规划提供大量可靠的实际运行评估数据。
An online monitoring,analysis and evaluation system for EV（Electric Vehicle） charging station is designed and developed,which adopts the PCI-bus-based muhi-DSP structure and consists of muhi-DSP acquisition terminal,vehicular terminal,industrial PC and interfacing circuits. The voltages and currents of PCC（Point of Common Coupling） and chargers are collected in real time,based on which,different power quality indices are calculated. All monitoring data are gathered via PCI bus,based on which,the operational characteristics of transformers and chargers are analyzed. The operating and charging information of EV is received via GPRS and the radar map method is applied to comprehensively evaluate the conditions of EV. The probability distributions of EVs＇ start charging time,initial state of charge and daily mileage are statistically analyzed. The results of practical operation show that,the system is stable and reliable,providing huge practical and reliable data of operation and evaluation for the operation and planning of EV charging station.
出处
《电力自动化设备》
EI
CSCD
北大核心
2014年第11期14-21,共8页
Electric Power Automation Equipment
基金
国家自然科学基金资助项目(51277184)
输配电装备及系统安全与新技术国家重点实验室自主研究项目(2007DA10512711209)~~
关键词
电动汽车
充电站
监测
起始充电时间
荷电状态
日行驶里程
评估
electric vehicles
charging station
monitoring
start charging time
SOC
daily mileage
evaluation
