WIND POWER PLANT WITH ASYNCHRONOUS DUAL POWER SUPPLY MACHINE AND METHOD OF OPERATION OF SUCH WIND POWER PLANT

摘要

1. A method of operating a wind power plant, comprising an asynchronous dual-power machine, as well as a converter on the network side and a converter on the generator side, controlled by a control means, the method includes the following operations:! - in normal operation, the converters are controlled by means of a control using controlled variables for normal operation,! - in the event of a network failure, the converters are controlled by at least one control module which, through controlled variables, controls (i) the torque and / or active power and (ii) the reactive current and / or reactive power so that the shutdown an asynchronous machine from the network will be produced only if the voltage in the network drops below a predetermined voltage-time characteristic, the shape of which is determined by the set of pre-selected parameters contained in at least one control module, when They create at least one first function of the controlled variable, which in the event of a failure provides a controlled variable for torque and / or active power and which includes at least two basic functions, the first of which determines the set point for torque and / or active power after a failure occurs, and the second - the setting for torque and / or active power after the failure, and also create at least one second function of the controlled variable for reactive a and / or reactive power, which in case of failure provides a controlled variable for controlling