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Electric arc furnace power quality improvement using shunt active filter and series inductor

Esfandiari, A ; Sharif University of Technology | 2004

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  1. Type of Document: Article
  2. Publisher: 2004
  3. Abstract:
  4. This paper presents an investigation of power quality problems arising from electric arc furnace (EAF) operation, and the required compensating system capabilities. It also proposes a compensation system using a shunt active filter and a series inductor. A shunt active filter compensates for the reactive power and the current harmonics of the highly varying load. Reference signals for the compensation logic are obtained from the instantaneous current vector components on a rotating reference frame. Due to noninteger harmonics on voltages at the point of common coupling, conventional methods for the inverter dc bus voltage regulation fail to perform properly. Hence, a new method is introduced for the active filter dc voltage regulation under flickery and unbalanced conditions. A series inductor is also employed to limit the variations of the load current. A real system is simulated using a three-phase EAF model to validate the performance of the compensation system. © 2004IEEE
  5. Keywords:
  6. Furnaces ; Logic ; Power system harmonics ; Reactive power ; Voltage control ; Power harmonic filters ; Active inductors ; Active filters ; Shunt (electrical) ; Power quality
  7. Source: IEEE TENCON 2004 - 2004 IEEE Region 10 Conference: Analog and Digital Techniques in Electrical Engineering, Chiang Mai, 21 November 2004 through 24 November 2004 ; Volume D , 2004 , Pages D105-D108
  8. URL: https://ieeexplore.ieee.org/abstract/document/1414879