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maximum power point (solar cell) (MPP)

Maximum Power Point(MPP) is a characteristic value of solar cells. It is the operating point of a solar cell at which it delivers its maximum power. The theoretical power results from the short-circuit current and the open-circuit voltage of the solar cell and is greater than the MPP value. The ratio of the MPP value to the theoretical power, is the fill factor( FF).

Since the power of a solar cell depends on the output voltage, which in turn depends on the solar irradiation and the cell temperature, the position of the maximum power point changes constantly with the irradiation and the temperature. The inverter connected downstream of the solar cell or the grid-feeding device or alternatively the Micro Inverter continuously determines the MPP value and regulates the operating point of the solar module by changing the load resistance. This function of the Module Level Power Management( MLPM) is called Maximum Power Point Tracking( MPPT).

Maximum Power Point (MPP) of a solar cell

Maximum Power Point (MPP) of a solar cell

The maximum power point can be determined by MPP trackers. These draw currents of different strengths from the solar modules and determine the current power from the measured voltage. The voltage values and current values are recorded by the MPP tracker.

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Englisch: maximum power point (solar cell) - MPP
Updated at: 19.02.2013
#Words: 205
Links: massive parallel processing (MPP), operating point, solar cell, power (P), current
Translations: DE
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