Thermal Control Based Active Anti-condensation Strategy for Offshore Wind Power Converters

被引：0

作者：

Zhang J. ^{[1
]}

Chen G. ^{[1
]}

Cai X. ^{[1
]}

Shi G. ^{[1
]}

机构：

[1] Wind Power Research Center, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Minhang District, Shanghai

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Active anti-condensation; Active thermal control; Electro-thermal model; Offshore wind power converter; Reliability;

D O I：

10.13334/j.0258-8013.pcsee.171815

中图分类号：

学科分类号：

摘要：

Offshore wind power converters are usually installed in a closed cabinet equipped with water cooling to meet the requirements of high humidity and salt spray prevention. When the wind speed suddenly decreases and the output power decreases dramatically, the temperature of the cooling water and heatsinks decreases rapidly. However, the temperature of the air in the cabinet drops slowly due to its heat dissipation condition. Therefore, when the heatsink and water pipes' temperature drops below the air dew point temperature in the cabinet, the condensation will occur; and the dew formed on the surface will damage the electrical and mechanical components of the converter, even lead to short circuit faults. In view of parallel topology of MW level offshore wind power converter at present, an active thermal control strategy was proposed based on reactive power circulating current. Through this thermal control technology, the temperature of the coldest point can be always higher than the air dew point temperature in the cabinet. Therefore, anti-condensation was achieved without other external devices such as a heater or dehumidifier. In this paper, the proposed method was modeled and theoretically analyzed, and the validity of the control strategy was verified by the simulation and test platform of 3MW wind power generation system. © 2019 Chin. Soc. for Elec. Eng.

引用

页码：2748 / 2756

页数：8

共 24 条

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