MPPT control method suitable for photovoltaic cell
A photovoltaic cell and control method technology, applied in the field of solar photovoltaic power generation, can solve the problems of difficulty in implementation, slow tracking speed, and high hardware requirements, and achieve the effects of strong engineering achievability, overcoming slow tracking speed, and low controller requirements.
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[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] figure 1 Shown is a preferred embodiment of the present invention, including the following implementation steps:
[0033] Step S1, according to the equivalent model of photovoltaic cells actually used, establish the maximum power point voltage and sunlight intensity S i The approximate straight line V′ between mpp (S i ), and an approximate straight line V between the maximum power point voltage and temperature T mpp (T).
[0034] The inference process is as follows:
[0035] The mathematical expression of the photovoltaic cell equivalent model is as follows:
[0036] I = I ph - I sat [ exp ( qV kTA ) - 1 ...
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