Study of Heat Dissipation of Frequency Converter of Wind Turbine Tower Bottom

doi:10.11985/2018.05.006

Abstract

Abstract:

For the current wind power industry, the more common converter cabinet and other electrical components under the program, the advantages of analysis and comparison of shortcomings. Based on the law of mass, momentum and energy conservation and the standard turbulence model, the velocity field and temperature field of the working environment of the converter cabinet at the bottom of the tower are analyzed by CFD fluid software. Through the analysis of the results can be obtained, the installation of axial fan for forced ventilation heat transfer tower bottom space temperature environment to meet the frequency cabinet and other electrical components of the normal work requirements, combined with structural design and layout of the unreasonable To make suggestions for improvement. The calculation of air cooling and cooling scheme in the bottom of the tower is not only important for the rationality of the wind turbine structure, but also has some reference value for the calculation of the heat dissipation parts in the engine room.

Key words: Tower bottom, wind turbine, frequency converter, temperature field

CLC Number:

TM614

Chen Ming,Chen Yongjun,Li Lisen. Study of Heat Dissipation of Frequency Converter of Wind Turbine Tower Bottom[J]. Journal of Electrical Engineering, 2018, 13(5): 33-39.

Figures/Tables 8

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References 6

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	压力差/Pa	最大出风量/(m³/h)	速度/(m/s)	散失系数	散热功率/(W/m²)	导热系数/(W/m²·K)
变频柜内风扇1	793	6 620	5.86	5.82	22 761	2 267
变频柜内风扇2	839	2 200	2.54	6.49	7 639	1 800
变频柜内风扇3	817	3 827	4.11	6.18	12 187	2 016
出风口			11.9
辅助变压器					1 166
塔基控制柜					890

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