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Direct current regulator for integrated network coupling of photovoltaic generator, has single or multi-phase transformer less inverter provided for coupling photovoltaic generator at direct current voltage intermediate circuit
Direct current regulator for integrated network coupling of photovoltaic generator, has single or multi-phase transformer less inverter provided for coupling photovoltaic generator at direct current voltage intermediate circuit
The regulator (1) has a single or multi-phase transformerless inverter (3) provided for coupling a photovoltaic generator at a direct current voltage intermediate circuit (2). Two independently controllable and potentially connected boost converters are used for forming the regulator. A control unit maintains potentials (U1E, U2E) of the photovoltaic generator symmetric to the reference potential using a suitable control method. An independent claim is also included for a transformerless Inverter-circuit arrangement for coupling the photovoltaic generators to an alternating current network.
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