Abstract: Abstract:The experiences of photovoltaic power station construction were introduced. The best tilt angle and the economical optimal tilt angle of photovoltaic array design were expounded. The optimized design method of photovoltaic array of largescale photovoltaic power station was researched. The feasibility to adopt lowtemperature and lowsolar irradiance condition in calculation of module string design was analyzed. Based on this, an optimized design scheme of the array spaces in southnorth direction and in eastwest direction and the supports was proposed.

Key words: Keywords:photovoltaic power station, array design, module string design, array spacing, tilt angle of module