风电叶片覆冰特点及除冰技术研究OA

Issues such as faults,damages,and power generation capacity losses caused by icing on wind turbine blades have become significant factors limiting stable operation of wind turbines.To address the problem of icing on wind turbine blades and ensure safe and reliable operation of wind turbines,this paper first elaborates on the types and characteristics of icing on wind turbine blades based on existing research findings.Then,the hazards and monitoring techniques caused by icing are analyzed.It summarizes the principles and advantages/disadvantages of current wind turbine blade anti-/de-icing technologies,and proposes reasonable recommendations by considering the challenges and existing problems faced by current operation of wind turbines.The research results show that:1)According to the different mechanisms of icing,wind turbine blade icing can be divided into three types:alternating cold and hot icing,glaze,and rime.2)Current prevention measures for icing on wind turbine blades primarily include adopting safety protection modes,blade adopt anti-icing design,and the anemometer adopts anti icing design.3)De-icing technologies mainly consist of air-thermal de-icing and electric heating de-icing.Electric heating de-icing technology outperforms air-thermal de-icing technology in terms of power consumption,heating efficiency,reliability,and de-icing effectiveness.Therefore,both de-icing technologies can be selected for short-term icing,but electric heating de-icing is recommended for prolonged icing periods.It is suggested to consider the impacts of wind turbine blade icing and corresponding icing prevention measures during the wind farm site investigation and design phase,helping to reduce economic losses caused by technical modifications of wind turbines after grid connection.The results provide a theoretical basis and technical support for optimizing wind turbine blade icing prevention strategies.