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首页> 外文期刊>Russian electrical engineering >Minimization of High Harmonics in the Current of a Biasing Controlled Arc Suppressing Reactor
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Minimization of High Harmonics in the Current of a Biasing Controlled Arc Suppressing Reactor

机译：偏置控制电弧抑制电抗器电流中的高次谐波最小化

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摘要

Compensation of single-phase earth fault currents in 6- to 35-kV networks is one of the purposes of using arc suppressing reactors (ASRs). Nonlinear distortion current of the reactor contributes to the residual fault current, for which reason its minimization is a critical task during ASR design. Operation under the technical saturation mode of electrotechnical steel is a characteristic feature of biasing controlled ASRs. Moreover, the biasing current of the device contains the high harmonics components; the share of these components depends on the structure of the magnetic system and on the properties of the electrotechnical steel. This paper proposes an approach to optimization of the magnetic system of a biasing controlled ASR based on adjustment of the biasing characteristics of the magnetic core according to the results of experimental measurements of the harmonic composition of reactor currents within a wide biasing range. Analysis of the influence of the parameters of the combined shell—core magnetic system on the reactor distortion current is carried out. Results of experiments for obtaining a biasing characteristic aiming at calculation of the harmonic composition of the reactor current with minimum 10% error are given. An optimization calculation of the parameters of the RUOM reactor magnetic system sections was carried out that allowed reducing the distortion current to 4% within the whole control range (10—120%) of the reactor nominal power and to 1% within the range of 60-100% of the reactor nominal power.
机译：补偿6至35 kV网络中的单相接地故障电流是使用消弧电抗器（ASR）的目的之一。电抗器的非线性畸变电流会导致残余故障电流，因此，使其最小化是ASR设计中的关键任务。在电工钢的技术饱和模式下运行是偏置受控ASR的特征。此外，该器件的偏置电流包含高次谐波成分。这些成分的份额取决于磁性系统的结构以及电工钢的性能。根据对宽偏置范围内电抗器电流的谐波成分进行实验测量的结果，提出了一种通过调整磁芯的偏置特性来优化偏置受控ASR的磁系统的方法。进行了壳-铁心组合系统参数对电抗器畸变电流的影响分析。给出了用于获得偏置特性的实验结果，该偏置特性旨在以最小的10％误差计算电抗器电流的谐波成分。进行了RUOM反应堆磁系统部分参数的优化计算，以使畸变电流在反应堆标称功率的整个控制范围（10-120％）范围内降低至4％，在60范围内降低至1％ -100％电抗器额定功率。

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