Photovoltaic array combiner box
A photovoltaic array and combiner box technology, applied in the field of photovoltaic power generation, can solve the problems that the output power of the input branch cannot reach the maximum, the maximum power point is different, etc., to simplify the thermal structure design and device selection, reduce heat loss, and improve The effect of overall efficiency
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[0040] Example 1:
[0041] Such as figure 1 As shown, the photovoltaic array combiner box includes multiple DC input branches, multiple voltage compensation units, and a comparison calculation unit. Wherein, each of the DC input branches has a maximum power tracking function. Here, the DC input branch has a maximum power tracking function, which can be realized by adding DC / DC boost modules to each input branch of the photovoltaic array combiner box. Of course, other ones that can achieve maximum power tracking can also be used. Functional modules are implemented.
[0042] After the multiple DC input branches are connected in parallel, they are combined into one DC output. The multiple DC input branches may be connected in parallel and combined into one by a bus bar. Preferably, the bus bars are copper bus bars. The positive and negative poles of the input end of each DC input branch are respectively connected to the positive and negative poles of the output end of a photovoltaic...
Example Embodiment
[0064] Example 2:
[0065] The difference between this embodiment and embodiment 1 is:
[0066] In this embodiment, the voltage compensation unit does not include an inverter module, a step-down module, and a rectifier module, that is, the voltage compensation unit only includes a control module and a voltage regulation module.
[0067] The other structures and functions in this embodiment are the same as those in Embodiment 1, and will not be repeated here.
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