Procedure and distribution for the supply of electrical energy from a wind power plant to an alternating voltage network

摘要

Procedure for supplying electrical energy to a wind power plant (2,3) through an energy transmission section (8, 9) to an alternating voltage network (11) through a common coupling point (10) of the section transmission system (8, 9) and the alternating voltage network (11), in which * the voltage (Uk) is detected at the coupling point (10) and supplied to a tap selector regulator (16, 17), * the voltage (Us) at the output of the wind power plant (2, 3) is detected and supplied to the tap selector regulator (16, 17) and * depending on the level of the detected voltages (Uk, Us ) by the tap selector regulator (16, 17), in a power transformer (14, 15) arranged in the power transmission section (8, 9) and provided with taps, the taps are occupied in such a way that at the output of the wind power plant (2, 3) a voltage (Us) appears, which leads to a predetermined voltage (Uk) at the common coupling point (10), where * the voltage (Uk) detected a at the coupling point (10) is controlled as to which of several predetermined voltage ranges (Ukmin1-Ukmax1, Ukmin2-Ukmax2, Ukmin3-Ukmax3) it is, and * according to the result of this control by means of a selector of area (34, 38, 41) of several area selectors (34, 38, 41), associated to each voltage range (Ukmin1-Ukmax1, Ukmin2-Ukmax2, Ukmin3-Ukmax3) of the voltage at the coupling point ( 10), for the output voltage (Us) in the wind power plant (2, 3) the tap selector regulator (14, 15) is loaded in such a way that the voltage (Uk) at the output of the wind power plant (2, 3) is in the voltage range (Ukmin1-Ukmax1, Ukmin2-Ukmax2, Ukmin3-Ukmax3) of the respective area selector (34, 38, 41).