Real-time measurement approach for tracking the actual coefficient of ΔV/ΔV10 of electric arc furnace

被引:15
作者
Guan, JL [1 ]
Gu, JC [1 ]
Wu, CJ [1 ]
机构
[1] Natl Taiwan Univ Sci & Technol, Taipei 106, Taiwan
关键词
arc furnace; flicker; voltage fluctuation;
D O I
10.1109/TPWRD.2003.820182
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 investigation develops a new definition of the voltage fluctuation (AV) electric arc furnace. Analysis of voltage flicker spectrum in the 0.25-30-Hz range reveals that the magnitude of each modulation frequency component decreases with frequency, while the standard deviation of each frequency component is high. From the statistics of electric arc furnace real time test data, the loads can be classified as weakly stationary processes, but lack a Gauss probability distribution. Traditionally, the equivalent 10-Hz voltage fluctuation (DeltaV(10)) value can be obtained from DeltaV/3.6. However, the real world tests and statistics indicate that the ratios of DeltaV/DeltaV(10) are 1.8, not 3.6.
引用
收藏
页码:309 / 315
页数:7
相关论文
共 14 条
[1]  
GU JC, 1994, EFFECTS HIGH VOLTAGE
[2]   Stochastic voltage-flicker power flow [J].
Hong, YY ;
Lee, LH .
IEEE TRANSACTIONS ON POWER DELIVERY, 2000, 15 (01) :407-411
[3]   Analysis of equivalent 10 Hz voltage flicker in power systems [J].
Hong, YY ;
Lee, LH .
IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 1999, 146 (05) :447-452
[4]  
KADAR LI, 1990, P C REC IEEE IND APP, V2, P2031
[5]   REAL-TIME MEASUREMENT OF ELECTRIC ARC-FURNACE DISTURBANCES AND PARAMETER VARIATIONS [J].
LAVERS, JD ;
BIRINGER, PP .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 1986, 22 (04) :568-577
[6]  
LAVERS JD, 1985, P I ELECT ENG C, V132, P82
[7]   DEVELOPMENT OF A MODEL FOR PREDICTING FLICKER FROM ELECTRIC-ARC FURNACES [J].
MANCHUR, G ;
ERVEN, CC .
IEEE TRANSACTIONS ON POWER DELIVERY, 1992, 7 (01) :416-426
[8]  
Papoulis A., 2002, PROBABILITY RANDOM V
[9]  
WU CJ, 1995, ELECT POWER QUALITY
[10]  
1988, INSTRUCTION MANUAL U