TEMPERATURE FIELD FEA OF WIND TURBINE BLADES BASED ON ELECTRIC HEATING ANTI-ICE TECHNOLOGY

Abstract

Abstract: For wind-turbine and lives nearby, active anti-icing can avoid all kinds of risk caused by passive de-icing. So, based on the principle of electric heating method, a anti-ice thermodynamics computational model is established for MW wind turbine blades. The model is used to calculate the steady-state temperature of composite surface in different heating power density. The results show good agreements between the mathematical model and FEA. Then a blade electric heating system with accurate distribution of heating power density along the lengthwise direction, designed by means of FEA, is equipped in a 2 MW wind turbine. The tests in wind-farm show that, in -15 ℃ environment, the whole heating area of blades can reach 1 ℃ to anti-ice state in 360 s. This system could be applied to anti-icing of wind turbine blades.

Key words: electric anti-ice, wind turbine blade, thermo dynamics, finite element

CLC Number:

TB332

YANG Wen-tao, CAI Ming, YAN Yong-jun, GAO Kang. TEMPERATURE FIELD FEA OF WIND TURBINE BLADES BASED ON ELECTRIC HEATING ANTI-ICE TECHNOLOGY[J]. Fiber Reinforced Plastics/Composites, 2019, 0(2): 63-68.

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TEMPERATURE FIELD FEA OF WIND TURBINE BLADES BASED ON ELECTRIC HEATING ANTI-ICE TECHNOLOGY

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