Patent ID: 8472222
Filing Date: 2013-06-25
Classification: H02J,H02M,Y02E

Abstract:
1. A method for operating an inverter for converting a direct current voltage of a solar generator into an alternating current voltage for supplying power to a network, the inverter including a step-up converter circuit, a dynamic intermediate circuit, and a step-down converter circuit, comprising: increasing, by the step-up converter circuit, the direct current voltage if the direct current voltage is lower than a peak-to-peak maximum of the network voltage; lowering, by the step-down converter circuit, an intermediate circuit voltage, as needed, to a lower voltage currently required in the network; and dynamically increasing, by the step-up converter circuit, the direct voltage to a value currently required in the network and temporarily supplying an approximately sinusoidal voltage curve for the intermediate circuit voltage.