HCPV Sun Tracking Study at INER

A 150 Wp high concentration photovoltaic (HCPV) power generation system was implemented and under testing at INER. Its main purposes include (1) measurement of the characteristics and efficiency for 150 Wp high concentration photovoltaic system with III-V solar cells, (2) development of sun tracking technology and maximum peak power tracking algorithm, (3) design of power generation monitoring system. There are three phases for tracking sun position precisely and getting the maximum peak power output from the system, i.e. scanning, locking and fine tuning. Since the photo sensor mechanism for sensing sun position and the sun track learning algorithm is still under development at INER, the fine tuning and precise sun tracking only can be effective in sunny days. INER future planning is to develop a workable sensor mechanism combined with complete sun position learning algorithm to meet the HCPV sun tracking system requirements