Analysis of interharmonics in DC arc furnace installations

被引：0
|
作者：
Mattavelli, P [1 ]
Fellin, L [1 ]
Bordignon, P [1 ]
Perna, M [1 ]
机构：
[1] Univ Padua, Dept Elect Engn, I-35131 Padua, Italy
来源：
8TH INTERNATIONAL CONFERENCE ON HARMONICS AND QUALITY OF POWER, PROCEEDINGS, VOLS 1 AND 2 | 1998年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper deals with interharmonic disturbances encountered during the operation of a DC are furnace installation. The main cause of the nicker-like disturbances has been identified in a strong harmonic interaction between AC and DC sides of the thyristor converters. Id order to analyze the effects of the various system parameters, the frequency response of the entire system has been derived. This approach allows the analysis of the harmonic amplification taking into account the line impedance, resonances introduced by harmonic filters, current regulator parameters, and the synchronizing procedure. Based on this analysis suitable provisions have been tal;en to mitigate the 125Hz voltage distortion on a 50Hz system. The frequency domain analysis has been verified by a time domain EMTP model of the system. Finally, measurements has been taken on the DC are furnace installation using different control and filter parameters, which show the effectiveness of the adopted provision.
引用
收藏
页码：1092 / 1099
页数：8
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