Design a grid tie PV system using the modules and power conditioning specs given

Question

Design a grid tie PV system using the modules and power conditioning specs given below Grid-tie PV system parameters . Size and Location: o Yearly average electric power usage: 4000 kWh per year o Location: Richland, WA System Specification o PV provides 100% of power o Tilt: Latitude 15 Annual average peak sun hours per day: 4.81 hours (Check using PVWatts) Module and Power Conditioning Unit (PCU) Details PV Module Max module Temperature Min module Temperature NEC Low Temp coefficient Module selection PCU Specification DC input Voltage range: 250V-550v Maximum current 11.2 A AC output: . NEC 690: Multiply Voc by . Voltage 240V ( phase) for minimum temperature operation Array Isc limited to: Nominal power 2200W o 1.25 Isc Imax (PCU) To use PCU: ·Peak power 2500 w . oMax Voc= Total Harmonic Dis.

Explanation / Answer

Need to properly analyze the presence of sun light in a day based on the solar energy outputting from panel per day should be calculated. on very hot session temperature can go high and more power generation possible. There for power share by PCU will be less shared.

So, you need to calculate the power delivered such that PCU should not be overloaded for long time.

Provide good amount of separation for better cooling .

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