Method for improving the quality of electrical distribution networks

摘要

The invention relates to a method for stabilizing an electrical distribution network (1) having a plurality, in particular a plurality of electrical consumers (3, 4), of which at least one consumer (4) has a variable-speed electromotive drive unit (5, 6), in particular a pump unit ( 5, 6). In this case, the power of the drive unit (5, 6) in response to a deviation of the grid frequency of the distribution network (1) of a nominal frequency and / or as a function of a deviation of the mains voltage (UNet (t)) of the distribution network (1) of a nominal voltage or pure sinusoidal set. The invention further relates to a variable speed electromotive drive unit (5, 6) for carrying out the method and an electrical distribution network with at least one such drive unit.