Method for feeding in electrical power by means of a wind power installation

A wind power installation or storage system for feeding electrical power into an electrical supply network, comprising

• an inverter arrangement having a plurality of inverters for generating an output power and for feeding the output power into the electrical supply network, wherein
• each inverter of the plurality of inverters has an associated isolating switch of a plurality of isolating switches to galvanically isolate the inverter from the electrical supply network,
• each inverter of the plurality of inverters has a circuit including switches to generate a sinusoidal output current using pulsed actuation of the circuit,
• each inverter of the plurality of inverters is configured to generate a variable partial power of a plurality of partial powers, and
• the inverter arrangement is coupled in that the output power is produced as the sum of the plurality of partial powers;
• and
• a central controller configured to:
• control the inverter arrangement and the inverter arrangement;
• depending on the output power, operate one or more first inverters of the plurality of inverters as active inverters that respectively generate a partial power;
• and
• depending on the output power, operate one or more second inverters of the plurality of inverters as passive inverters that respectively do not generate a partial power, wherein one or more of the passive inverters are operated as blocked inverters and remain galvanically coupled to the electrical supply network.