Research of Photovoltaic Charging System with Mazimum Power Point Tracking

摘要：

According to the output characteristics of photovoltaic (PV) array and battery charging characteristics, designed a PV charging system with maximum power point tracking (MPPT). This paper proposes a MPPT strategy based on DC/DC converter output current, which adopts variable step of duty cycle to implement MPPT of PV array. This perturbation and observation (P&O) method simplified the structure of the system, improved the speed and accuracy of tracking. In battery charging management, this paper adopts optimal charging strategy, charging controller combined MPPT charging and variable intermittent current charging increases the charge speed, raises the state of charge. Uses an efficient and reliable rules to determine the end of charging, avoids the over charging of battery and extends the lifetime of battery.

关键词： solar photovoltaic mazimum power point tracking battery charging variable intermittent current charging closed-loop control.

作者: Jun Pan Chenghua Wang Feng Hong

作者单位: College of Information Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing,210016,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 3706-3709

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）