CVT光伏泵水系统瞬态工作点特性分析  

ANALYSIS ON INSTANTANEOUS WORKING POINT OF A 2.5 kWp CVT-PV WATER PUMPING SYSTEM

作　　者：苑进社[1] 余世杰[2] 何慧若[2] 

机构地区：[1]西安理工大学应用物理系,西安710048 [2]合肥工业大学能源研究所,合肥230009

出　　处：《太阳能学报》2002年第5期554-556,共3页Acta Energiae Solaris Sinica

摘　　要：采用定电压跟踪器 (CVT)的光伏水泵系统在不同地区已成功地投入实际应用。实地运行数据表明 ,CVT不能适应太阳电池阵列伏安特性的变化 ,使系统瞬态工作点偏离阵列输出最大功率点 ,导致系统功率损失。该文报道 2 .5kWp光伏水泵系统的基本构成和典型实地运行数据 。Photovoltaic (PV) water pumping systems equipped with constant voltage tracker (CVT) have been put into practical application. The operating data of the system on the spot show that CVT can not be adapted to the change of PV array I-V characteristic that depends on solar radiation and temperature, thus the instantaneous working point of the system deviates from the maximal power point of PV array, which leads to loss of output power. The basic structure and typical operating data of 2.5kWp CVT-PV water pumping system were presented. Based on the operating data on the spot in a typical summer day, the characteristic of instantaneous working point of the system was described.

关 键 词：CVT 光伏水泵系统 瞬态工作点 定电压跟踪器 光机电一体化 

分 类 号：TH3[机械工程—机械制造及自动化] TK513[动力工程及工程热物理—热能工程]