Photovoltaic power generation calculation
The power generation forecast of PV power station should be calculated and determined based on the solar energy resources at the site and taking into account various factors such as PV power station system design, PV array arrangement and environmental conditions.
Attention: the power of different module sizes and types of modules may vary
Light irradiance
Photovoltaic power generation = installed capacity * light irradiation * integrated efficiency. Installed capacity: the number of installed modules * peak power of each module.
Integrated efficiency
The efficiency of the received light into electricity, can be understood as the conversion efficiency. It is related to system design, equipment and so on. Also often referred to as “system efficiency”
For example:
15KW PV power system installed in Shenzhen, assuming that the tilted surface of the Shenzhen side of the light is 1250kWh/m2/year, the integrated efficiency of 82%, then the power generation of this system is：
Ep = 15 * 1250 * 82% = 15375KWh. Shenzhen installed a 15kW system can send 15375 degrees of electricity a year. Of course, the PV system will have decay, power generation will decline year by year.
4. High voltage system testing
Component 1W (watt) is measured in the irradiance 1000W/m2, cell temperature 25 degrees in the standard test environment, the above formula can be understood as follows:
Note:
Component 1W (watt) is measured in the irradiance 1000W/m2, cell temperature 25 degrees in the standard test environment, the above formula can be understood as follows:
PV people often say:
equivalent hours = light * system efficiency
if the equivalent hours is 1100, then 1kW PV system, the annual power generation is 1000 degrees of electricity, this is also the easiest calculation method.
6.6 The energy storage battery shall be operated out of the energy storage system, disconnected from the electrical connection in the system and reported for overhaul treatment when the following conditions occur
(a) battery single under-voltage, over-voltage, should be operated out of the energy storage system, cut off the system within the electric battery management system protection action.
(b ) battery shell breakage, pressure relief valve rupture, electrolyte leakage.
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