A four-level hierarchical control method for a tandem double-wind turbine wind turbine

Abstract

The invention discloses a four-level hierarchical control method for a tandem double-wind turbine wind turbine, belonging to the technical field of wind power control. Using four-level hierarchical control logic, through the four-level control architecture of single wind turbine control level, two wind turbine coordination control level, double wind turbine system control level and network source coordination level, from the network source side of the double wind turbine set, and then To the unit side, the coordinated control side, and the single wind turbine side, the layers are progressive to form a complete protection control logic. The four-level hierarchical control aims at the optimal output of the unit and the lowest load. Coordinated control of the output of the dual wind turbines will result in higher unit efficiency, more friendly grid connection, improved wind energy utilization, and a significant reduction in the cost per kilowatt-hour of wind turbines. Improve the grid-connected characteristics of the unit.

Description

technical field [0001] The invention belongs to the technical field of wind power control, and in particular relates to a four-level hierarchical control method for a tandem double wind turbine wind turbine. Background technique [0002] With the rapid development of wind power installed capacity, the current mainstream wind turbines adopt the form of single wind turbine horizontal axis, and are developing towards large-scale development. However, with the large-scale development of wind turbines, their core key technologies are subject to many restrictions, and there is an urgent need to develop new forms. High-efficiency wind energy conversion device. [0003] The tandem double-wind rotor structure is valued for its high efficiency and mature key core equipment. The tandem double wind turbine unit has two front and rear wind rotors, and the two wind rotors are coupled to each other, interact and work together, so the operation of the double wind turbine unit is very diffe...

AI Technical Summary

Problems solved by technology

The tandem double wind turbine unit has two front and rear wind rotors, and the two wind rotors are coupled to each other, interact and work together, so the operation of the double wind turbine unit is very different from the single wind turbine unit, but the existing reports of double wind turbines The control logic of the wind turbines still adopts the traditional control logic of the single wind turbines, resulting in the failure of the wind energy utilization efficiency of the double wind turbines to be optimal, and poor grid friendliness

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