Modeling the Operation of a Wind Power Plant with Full Energy Conversion

The article provides an analysis of the operation of a wind power plant with full energy conversion based on an asynchronous generator with a short-circuited rotor. The possibility of optimizing the operation of the asynchronous generator at low speeds of shaft rotation allows to expand the range of effective use of the wind power plant at unstable wind speed and opens up wide opportunities for the application of intelligent control systems for the asynchronous generator, in contrast to the generator based on a synchronous machine with permanent magnets. These advantages are achieved due to the use of converting technology, which in turn requires the use of a complex control system, the sequence of turning on the converters and the separation of control and feedback loops. The use of an asynchronous generator with a short-circuited rotor requires the presence of an initial magnetization of the machine for further operation, this can be achieved in several ways either from the network or from the storage, in the case of an autonomous system with a wind energy installation. In the course of the work, it was shown that non-compliance with the start-up procedure of the wind energy installation may result in abnormal modes accompanied by significant current and dynamic mechanical overloads of the machine and the installation's converters. The resulting simulation model can be used for research and comparative analysis of the operating modes of wind turbines with different types of generators and optimization of their control system in order to maximize the generated power from wind energy in various conditions.