有限元法分析隔声装置对特高压并联电抗器散热性能的影响

发布时间：2018-05-26 20:27

本文选题：并联电抗器 + 温度场　；参考：《高电压技术》2017年03期

【摘要】：特高压并联电抗器噪声问题日益突出,加装隔声装置能有效降低特高压并联电抗器噪声;但隔声装置可能造成特高压并联电抗器散热不足,使内部绝缘系统性能劣化,影响特高压并联电抗器运行可靠性与经济性,因此需对加装隔声装置后的特高压并联电抗器散热性能进行分析。通过有限元方法建立特高压并联电抗器模型,模拟其产热与散热过程,研究加装隔声装置前后的特高压并联电抗器散热性能,分析了油箱内温度分布情况以及温升值。研究表明,安装该隔声装置会导致特高压并联电抗器内部温升值增大2~3 K,但不会影响其安全稳定运行;仿真结果与试验结果有很好的一致性。电抗器内部热量散出主要依赖绝缘油的循环流动;在电抗器散热性能良好的前提下,安装隔声装置不会对其温升有较大影响。
[Abstract]:The noise problem of UHV shunt reactor is becoming more and more serious, the noise of UHV shunt reactor can be effectively reduced by adding sound isolator, but the sound insulation device may cause insufficient heat dissipation of UHV shunt reactor and make the performance of internal insulation system worse. The operation reliability and economy of UHV shunt reactor are affected, so it is necessary to analyze the heat dissipation performance of UHV shunt reactor. The model of UHV shunt reactor is established by finite element method. The heat production and heat dissipation process is simulated. The heat dissipation performance of UHV shunt reactor before and after the installation of sound isolator is studied. The temperature distribution in the tank and the temperature appreciation are analyzed. The results show that the installation of the sound insulation device will increase the internal temperature of the UHV shunt reactor by 2K, but will not affect its safe and stable operation, and the simulation results are in good agreement with the experimental results. The internal heat dissipation of the reactor mainly depends on the circulating flow of the insulating oil, and the installation of the sound insulation device will not have a great effect on the temperature rise of the reactor when the heat dissipation performance of the reactor is good.
【作者单位】：中国电力科学研究院;华中科技大学电气与电子工程学院;
【分类号】：TM472

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