Converter-based generators and method for feeding in electrical power

A wind power system for feeding electrical power into an electrical supply network having a network voltage with a network frequency, comprising:

• a controller configured to determine a converter proportion of a network section of the electrical supply network, wherein the converter proportion represents a ratio of power fed in using converters to a total power fed in;
• and
• an inverter configured to feed the electrical power into the electrical supply network in a normal mode, wherein:
• the controller is configured to activate at least one support control for supporting the electrical supply network depending on the converter proportion,
• the at least one support control is adjustable using a degree of activation,
• the degree of activation of the at least one support control is dependent on the converter proportion,
• the degree of activation has a value profile dependent on the converter proportion,
• the degree of activation has values in a range of 0 to 100% continuously or in more than two steps,
• a support control of the at least one support control is fully activated if the degree of activation associated with the support control is 100%, and
• the support control of the at least one support control is deactivated if the degree of activation associated with the support control is 0%.