1、英文 1300 单词, 7000 英文 字符 , 中文 2150 汉字 出处: Khatib T T N, Mohamed A, Amin N. A new controller scheme for photovoltaics power generation systemsJ. European Journal of Scientific Research, 2009, 33(3): 515-524. 外文文献: A New Controller Scheme for Photovoltaics Power Generation Systems Khatib T T N, Mohamed
2、A, Amin N Abstract This paper presents a new controller scheme for photovoltaic (PV) power generation systems. The proposed PV controller scheme controls both the boost converter and the battery charger by using a microcontroller in order to extract maximum power from the PV array and control the ch
3、arging process of the battery. The objective of the paper is to present a cost effective boost converter design and an improved maximum power point tracking algorithm for the PV system. A MATLAB based simulation model of the proposed standalone PV system has been developed to evaluate the feasibilit
4、y of the system in ensuring maximum power point operation. 1.Introduction Recently, the installation of PV generation systems is rapidly growing due to concerns related to environment, global warming, energy security, technology improvements and decreasing costs. PV generation system is considered a
5、s a clean and environmentally-friendly source of energy. The main applications of PV systems are in either standalone or grid connected configurations. Standalone PV generation systems are attractive as indispensable electricity source for remote areas. However, PV generation systems have two major
6、problems which are related to low conversion efficiency of about 9 to 12 % especially in low irradiation conditions and the amount of electric power generated by PV arrays varies continuously with weather conditions. Therefore, many research works are done to increase the efficiency of the energy produced from the PV arrays. The solar cell V-I characteristics is nonlinear and varies with irradiation and temperature. But there is a unique point on the V-I and P-V curves, called as the m