An optimized wind turbine blade deicing method

Abstract

The invention is applicable to the field of wind turbine blade anti-icing, and in particular relates to an optimized wind turbine blade deicing method, which divides the wind turbine blade into high / low power continuous heating zone and periodic heating zone; by setting the blade surface temperature Calculate the required current heat from the initial value; use the current heat rate to conduct experiments, adjust the current heat rate value, and obtain the best electric heat flow rate required for the low / high power continuous heating zone; then use the two most The best value test obtained the accumulated ice shape in the periodic heating zone, and calculated the resultant ice coating force based on the accumulated ice shape, and made the ice accretion adhesion force equal to the resultant ice coating force, calculated the surface temperature of the periodic heating zone, and then obtained the periodic heating The electric heat flow rate required by each zone; finally, the optimal heat flow rate value of each zone obtained through experiments and simulations is used to control each zone for deicing. The invention can reduce energy consumption on the basis of achieving the purpose of effective deicing, and improve the economic benefits of the wind farm.

Description

technical field [0001] The invention relates to the field of anti-icing and deicing of wind turbine blades, in particular to an optimized wind turbine blade deicing method. Background technique [0002] In recent years, with the rapid development of the wind power market, the utilization of wind energy resources in cold climates has received more and more attention. However, in cold climate regions, the reduction of aerodynamic performance of wind turbine blades due to icing, additional vibration of wind rotors, failure of control strategies, threat of ice shedding, etc. have become the core bottlenecks that limit the utilization of wind energy in cold climates. [0003] There are many problems in the long-term freezing of the blades of the wind turbine: the ice of the blades increases the weight of the wind turbine, increases the force on the suspension mechanism of the wind turbine, and at the same time affects the shape of the blades, increases the rotational resistance, ...

AI Technical Summary

Problems solved by technology

However, in cold climate regions, the reduction of aerodynamic performance of wind turbine blades due to icing, additional vibration of wind rotors, failure of control strategies, threat of ice shedding, etc. have become the core bottlenecks that limit the utilization of wind energy in cold climates.

[0003] There are many problems in the long-term freezing of the blades of the wind turbine: the ice of the blades increases the weight of the wind turbine, increases the force on the suspension mechanism of the wind turbine, and at the same time affects the shape of the blades, increases the rotational resistance, and greatly reduces the wind turbine power generation efficiency

Generally, it will affect the power generation of wind turbines and wind farms, and increase the power consumption of the wind farms, affecting the economic benefits of wind farms

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