Discussion on the Design of Distributed PV System for Commercial Buildings
Based on project case,the content of electrical design of roof distributed generation photovoltaic system for a commercial building is introduced,including the selection of PV-related main equipment,the design of PV array,and the connection of 0.4 kV low-voltage grid to existing distribution system.Meanwhile,lightning protection and grounding for the system are improved according to the actual situation on site.Finally,the overall efficiency coefficient is corrected to estimate the electric energy production.
distributed PV systemPV rackinverterPV power to inverter power ratiolow-voltage grid connectionlightning protection and groundingoverall efficiency coefficientelectric energy production
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