Method for controlling a wind turbine including reversing an energy flow through a generator

摘要

Controlling operation of a wind turbine coupled to a power grid is disclosed. The power grid is monitored in order to determine whether or not there is a match between a demand for energy defined by power consumers connected to the power grid and supply of energy from power producers connected to the power grid. For instance, the price of energy may be monitored. In the case that the supply of energy from power producers exceeds the demand for energy, and a deficiency between the demand for energy and the supply of energy exceeds a first threshold value, the energy flow through the generator is reversed, thereby causing the generator to consume power received from the power grid. Thereby the deficiency can be reduced and the power grid can be stabilised.

主权项

1. A method for controlling operation of a wind turbine, the wind turbine comprising a rotor carrying one or more wind turbine blades, and a generator arranged to be coupled to a power grid, the method comprising:
monitoring the power grid in order to determine whether or not there is a match between a demand for energy defined by power consumers connected to the power grid and supply of energy from power producers connected to the power grid, in the case that (1) the supply of energy from power producers exceeds the demand for energy and (2) a deficiency between the demand for energy and the supply of energy exceeds a first threshold value, generating a reversing signal for the wind turbine, and reversing an energy flow through the generator upon receipt of the reversing signal, thereby causing the generator to consume power received from the power grid.