Author(s): 1Le Tien Phong, 2Nguyen Minh Cuong, 3Thai Quang Vinh, 4Ngo Duc Minh
Affiliation(s): 1,2,4Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen, Viet Nam,3 Institute of Information Technology, Vietnam Academy of Science and Technology, Hanoi
This paper introduces a new method that no previous study has been done in this photovoltaic power generation similar to this paper to harness maximum potential power from photovoltaic power generation. The completely mathematical model added the relation between diode factor of the generation and p-n junction temperature is proposed to use in this method. The maximum power point tracker combines the iterative and bisectional technique, the completely mathematical model of PVgPVG and the system of equations that converts value of parameters from standard test condition to any working condition, measuring sensors to measure power of solar irradiance and p-n junction temperature to determine parameters at maximum power point at any working condition. The voltage controller is designed to drive this generation to expect working state to harness maximum power. An experimental model corresponding to this method was designed and operated in real conditions in Viet Nam. Experimental results show the high accuracy of analyzing in theory and high capability to bring this method out real applications to harness all available energy of this generation.