WIND ENERGY AND TIDAL CURRENT ENERGY COUPLED POWER GENERATION METHOD AND SYSTEM BASED ON OFFSHORE HORIZONTAL AXIS WIND TURBINE PLATFORM

摘要

A wind energy and tidal current energy coupling power generation method and system based on an offshore horizontal axis wind turbine platform. The method comprises: calculating, by monitoring and collecting an active power of a wind generating set (1-2) in a wind power generation platform (1) in real time, the difference between the active power and the rated power of the wind generating set (1-2); controlling a running state and power output of a tidal current energy power generation unit (2) according to a calculated capacity difference signal, so as to achieve wind-tide coupled power generation. On the basis of the existing offshore wind power generation platform (1), an existing power transmission equipment of offshore wind power is fully utilized to integrate the tidal current energy power generation and wind power, the shortage of offshore wind power capacity is filled by means of tidal current energy power generation, by combining a wind-tide coupled control strategy, the fluctuation of the wind power is compensated, and the offshore wind energy and tidal current energy coupled power generation system with stable output is constructed, so as to reduce the construction cost, improve the comprehensive utilization rate of offshore renewable energy and the reliability of the power generation system, and improve the economic benefits of the whole power generation.