Abstract
The article studies functioning of the scheme of transformation power through the converter wind-power installations during emergency operation. The main types of emergencies for this converter are considered. An approach to the calculation of short-circuit current of a synchronous generator and short-circuit current of an LC-circuit is presented. Protection elements (voltage limiters, fuses, fast current sensors) are given for circuit protection and the reliability in emergency conditions is offered. Unlike classic circuit diagrams for wind-power installations, the circuit diagrams without multiplying gear for turbo-generator wind-рower installations have a self-stabilization effect of electromechanical system under optimal conditions in a wide range of a wind flow. In order to improve its effectiveness and implement an offline mode, you need to use converters to match the frequency of the generator voltage and that the frequency of network. Circuit diagrams of such converters have a complex structure, they contain a number of power supplies and rectifiers, capacitive storages, pulse converters and multi-level inverters.
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