长沙理工大学电气与信息工程学院,长沙 410004
华园园(1999—),女,硕士研究生,研究方向为高电压与绝缘技术(通信作者)(E-mail:1433476951@qq.com)。
罗日成(1969—),男,博士后,副教授,硕士研究生导师,主要从事电力设备的在线监测与故障诊断、阵列信号处理的研究(E-mail:luorich@126.com)。
收稿:2026-02-02,
修回:2026-04-26,
纸质出版:2026-08-16
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叶片覆冰会降低风力机的发电效率,采用电加热防冰技术可以维护风机的安全稳定运行。由于叶片在电加热防冰时叶表的温升情况存在差异,会出现叶表不同部位温差过大、局部温度过高等问题。针对上述情况,以H型垂直轴风机叶片为研究对象,对风机静止状态下叶表流场分布及叶表散热情况进行分析。建立了基于流体—热力场的叶片电加热防冰二维耦合数值仿真模型,提出按照迎、背风侧叶表平均风速的比值来分配两侧防冰功率的策略,并对处于不同攻角下的风机叶片进行了仿真验证。结果表明,当叶片一直处于0°或180°攻角下时,叶表温度分布较均衡。其余攻角下,叶表不同位置温度相差较大,相比于不分区防冰,差异化防冰策略在缩小叶表温差、降低叶表局部最高温度方面取得了较好的效果。
The ice-coating of the blade can reduce the power generation efficiency of the wind turbine
and the doption of electric heating anti-icing technology can maintain the safe and stable operation of the wind turbine. Due to the difference in the temperature rise of the blade surface during the electric heating and anti-icing of the blade
such issues as excessive the temperature difference between different parts of the blade surface and high local temperature can occur. In view of above issues
the H-type vertical axis fan blade is taken as the research object
the flow field distribution and heat dissipation of the blade surface under the static state of the fan are analyzed. A two-dimensional coupling numerical simulation model of blade electric heating and anti-icing based on fluid-thermal field is set up. A strategy of distributing anti-icing power on both sides according to the ratio of the average wind speed of the blade surface on the windward and leeward sides is proposed
and the wind turbine blades at different angles of attack are simulated and verified. The results show that when the blade has always been at 0°or 180°angle of attack
the blade surface temperature distribution is more balanced. At the other angles of attack
compared with the non-partition antiicing
the differential anti-icing strategy has achieved good results in reducing the temperature difference of the blade surface and reducing the local maximum temperature of the blade surface.
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