Solar inverter and photovoltaic installation comprising several solar inverters
A technology for optoelectronic equipment and inverters, which is used in photovoltaic power generation, irreversible DC power input conversion to AC power output, and optical radiation generators.
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[0032] FIG. 1 shows a photovoltaic system PVA according to the invention, which schematically has three photovoltaic generators SM1-SM3. For clarity, their internal structures are not further shown. Here, the photovoltaic generators SM1-SM3 feed the respective solar inverters M1-M3. In the example of FIG. 1, each solar inverter M1-M3 has an inverter module WR whose input is connected to a photovoltaic generator SM1-SM3. Here, the solar direct current is converted into a single-phase alternating voltage. As already realized in this example, for safety reasons these voltages are potential free with respect to the levels of the photoelectric generators SM1-SM3.
[0033]In the example of FIG. 1 , three solar inverters M1 - M3 each feed a phase line R, S, T of the grid SN in order to achieve an approximately uniform power distribution in the grid SN. Such a grid SN is in particular a public three-phase 50 Hz / 400 V voltage grid. N denotes the common neutral of all three feeding ...
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Abstract
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