FIELD: electric power engineering.
SUBSTANCE: invention relates to a method of supplying electric power to power supply network (320), having network voltage (U) with network frequency (f), with rated network frequency, by means of supply unit controlled by converters (300), in particular by means of wind farm (112) or one wind power plant (100), note here that this supply unit for electric power supply feeds supply current (I) in network in the form of alternating current (I) with frequency, phase (φ) and supply voltage (U), and at least one of values from the following list: supply current (I) frequency (f), supply current (I) phase (φ), supplied power and supply voltage (U), is adjustable, and this method includes the following stages: estimating the fraction of converters on one section of power supply network (320), wherein said portion of converters is the ratio of power supplied by converters to all power supplied; and control of electric power supply depending on estimated fraction of converters.
EFFECT: support of mains voltage at changes of power supply network properties.
21 cl, 6 dwg
