A method for feeding electrical power into an electrical supply network having a network voltage with a network frequency by means of a converter-based generator , in particular by means of a wind power system , comprising the following steps: - estimating a converter proportion of a network section of the electrical supply network , wherein the converter proportion denotes a ratio of power fed in by means of converters to total power fed in, - feeding electrical power into the electrical supply network in a normal mode, - activating at least one support control for supporting the electrical supply network , wherein - the activating is effected depending on the converter proportion, wherein - the at least one support control is adjustable in each case by way of a degree of activation, and - the degree of activation of the at least one support control is dependent in each case on the estimated converter proportion, characterized in that - a potential proportion range for the estimated converter proportion can be classified in a lower, middle and upper proportion range, wherein - the lower proportion range lies below a first reference value, - the middle proportion range begins at the first reference value and extends as far as a second reference value, which is greater than the first reference value, and - the upper proportion range lies above the second reference value, and with a maximum degree of activation in the middle proportion range - an emulation function is activated, which reacts to a frequency change of the network frequency with a power change of fed-in power, wherein the power change as a reaction to the frequency change emulates a behavior of a synchronous machine coupled directly to the electrical supply network , wherein preferably a virtual centrifugal mass with adjustable mass moment of inertia is used. - estimating a converter proportion of a network section of the electrical supply network , wherein the converter proportion denotes a ratio of power fed in by means of converters to total power fed in, - feeding electrical power into the electrical supply network in a normal mode, - activating at least one support control for supporting the electrical supply network , wherein - the activating is effected depending on the converter proportion, wherein - the at least one support control is adjustable in each case by way of a degree of activation, and - the degree of activation of the at least one support control is dependent in each case on the estimated converter proportion, - the activating is effected depending on the converter proportion, wherein - the at least one support control is adjustable in each case by way of a degree of activation, and - the degree of activation of the at least one support control is dependent in each case on the estimated converter proportion, - a potential proportion range for the estimated converter proportion can be classified in a lower, middle and upper proportion range, wherein - the lower proportion range lies below a first reference value, - the middle proportion range begins at the first reference value and extends as far as a second reference value, which is greater than the first reference value, and - the upper proportion range lies above the second reference value, and with a maximum degree of activation in the middle proportion range - an emulation function is activated, which reacts to a frequency change of the network frequency with a power change of fed-in power, wherein the power change as a reaction to the frequency change emulates a behavior of a synchronous machine coupled directly to the electrical supply network , wherein preferably a virtual centrifugal mass with adjustable mass moment of inertia is used. <EOS>