The invention provides a control method of a polar-axis-based
photovoltaic power generation double-axis tracking structure, and belongs to the technical field of
solar power generation. The invention is characterized in that the control method of the polar-axis-based
photovoltaic power generation double-axis tracking structure comprises (1) setting an initial value, (2) calculating n and
delta, (3) calculating w<sr>, w<ss>, t<ss>, t<sr> and [
delta]B, (4) calculating t<z>, if t<z>>=t<sr>, a step (5) is executed, otherwise the step (4) is returned to, (5) if weather is cloudy, the step (5) is returned to, otherwise a step (6) is executed, (6) if a
limit switch is touched, the structure is stop, otherwise a step (7) is executed, (7) calculating [gamma]<s>, [alpha]<s> and [gamma]<s> are adjusted, and a step (8) is executed, (8) R<2>, R<2>', R<2>'' and R<2>''' are compared, if R<2>= R<2>'= R<2>''=R<2>''', the [alpha]<s> and the [gamma]<s> are kept, and a step (13) is executed, otherwise a step (9) is executed, (9) if the R<2> is not equal to the R<2>', the R<2>' is not equal to the R<2>'', and the R<2>'' is not equal to the R<2>''', the [alpha]<s> and the [gamma]<s> are successively adjusted, and the step (13) is executed, otherwise the step (10) is executed, (10) if the R<2> is equal to the R<2>', the R<2>' is not equal to the R<2>'', and the R<2>'' is equal to the R<2>''', the [alpha]<s> is adjusted, and the step (13) is executed, otherwise a step (11) is executed, (11) if the R<2> is equal to the R<2>'', the R<2>' is not equal to the R<2>'', and the R<2>' is equal to the R<2>''', the [gamma]<s> is adjusted through combination with S, and the step (13) is executed, otherwise a step (12) is executed, (12) an R<min> is searched, the [alpha]<s> and the [gamma]<s> are successively adjusted, and the step (13) is executed, (13) if [
delta] is ended, a step (14) is executed, otherwise the step (13) is returned to, and (14) if t<z>>= t<ss>, the structure is stopped, otherwise the step (5) is executed.