特高压直流干式平波电抗器多谐波特征参量测试技术及应用

发布时间：2018-06-25 06:41

本文选题：特高压直流输电 + 伏安特性　；参考：《高电压技术》2017年03期

【摘要】：特高压直流(UHVDC)干式平波电抗器的谐波特征参量直接影响着它的安全稳定运行。为准确测量平波电抗器各次谐波特征参量,从而评估它的性能,通过理论及仿真分析,验证了小电流下的等效测量原理并获得了平波电抗器在双12脉动换流工况下的谐波电流频谱;提出了多谐波特征参量测量系统,并开展了±800 k V特高压平波电抗器特征参量的实测研究。结果表明:电压和电流准确度为0.03%、功率因数角准确度为0.05%时,在95%置信水平下谐波电抗测量不确定度为0.11%,提出的系统能够准备测量平波电抗器特征参量。研究结果可为特高压直流平波电抗器产品设计、性能考核和评估提供方法和指导依据。
[Abstract]:The harmonic characteristic parameters of UHVDC dry flat-wave reactor directly affect its safe and stable operation. In order to accurately measure the characteristic parameters of every harmonic wave of the flat-wave reactor and evaluate its performance, the theoretical and simulation analysis are carried out. The principle of equivalent measurement under low current is verified and the harmonic current spectrum of the flat-wave reactor under the condition of double 12 pulsating commutation is obtained, and a multi-harmonic characteristic parameter measurement system is proposed. The measurement of characteristic parameters of 卤800kV UHV flat-wave reactor has been carried out. The results show that when the accuracy of voltage and current is 0.03 and the accuracy of power factor angle is 0.05, the uncertainty of harmonic reactance measurement is 0.11 at 95% confidence level. The proposed system can be prepared to measure the characteristic parameters of flat-wave reactor. The results can provide the method and guidance basis for the product design, performance evaluation and evaluation of UHV DC flat-wave reactor.
【作者单位】：西南交通大学电气工程学院;中国电力科学研究院;中国能建集团装备有限公司北京技术中心;
【基金】：国家电网公司科技项目(XTB17201300087)~~
【分类号】：TM47

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