The invention discloses a roof type photovoltaic array
pitch optimizing method based on shadow
radiation analysis.The roof type photovoltaic array
pitch optimizing method based on shadow
radiation analysis comprises the steps that firstly, a
building model and geographic position attributes of the
building model are obtained; secondly, according to the geographic position attributes of the
building model, a laying area of photovoltaic equipment is determined; thirdly, according to the geographic position attributes of the building model and parameters of the photovoltaic equipment, an installation
pitch initial value of a photovoltaic array is calculated; fourthly, a static investment target function for unit
electric energy is established; fifthly, the photovoltaic array pitch is adjusted to make the static investment of unit
electric energy be minimum, and the photovoltaic array pitch with the minimum static investment of unit
electric energy is the actual laying pitch of the photovoltaic equipment.By means of the optimizing method, more photovoltaic equipment is laid in a limited area by adjusting the photovoltaic array pitch, the total
electricity generating amount is increased, and the static investment of unit electric energy is reduced.