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Digital signal processor implementation and performance evaluation of split capacitor, four-leg and three H-bridge-based three-phase four-wire shunt active filters

Digital signal processor implementation and performance evaluation of split capacitor, four-leg and three H-bridge-based three-phase four-wire shunt active filters

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  • Author(s): V. Khadkikar 1 ; A. Chandra 2 ; B. Singh 3
    • View affiliations
    • Affiliations: 1: Electrical Power Engineering Program, Masdar Institute, Abu Dhabi, United Arab Emirates
      2: Department of Electrical Engineering, Ecole de Technologie Superieure, University of Québec, Montréal, Canada
      3: Department of Electrical Engineering, Indian Institute of Technology Delhi, New Delhi, India
  • Source: Volume 4, Issue 4, April 2011, p. 463 – 470
    DOI:  10.1049/iet-pel.2010.0198 , Print ISSN 1755-4535, Online ISSN 1755-4543
© The Institution of Engineering and Technology
Published

In this paper a comprehensive study on the three-phase four-wire (3P4W) shunt active power filter (APF) is carried out on the basis of three system configurations. These three two-level voltage source inverter topologies are compared for 3P4W shunt APF, namely, split capacitor (2C), four-leg (4L) and three single-phase H-bridges (3HB). The performance of all three topologies, under an unbalanced non-linear load condition, is evaluated with a detailed digital signal processor (DSP)-based experimental investigation. The steady-state as well as dynamic performance of APF is studied to compensate for current harmonics, reactive power, current unbalance and neutral current. The advantages and limitations offered by each of the topologies are also discussed in brief.

Inspec keywords: digital signal processing chips; invertors; active filters; power capacitors; power harmonic filters; load (electric)

Other keywords: two-level voltage source inverter topology; four-leg H-bridge-based three-phase four-wire shunt active filters; neutral current; digital signal processor; 3P4W shunt APF; reactive power; split capacitor performance evaluation; current harmonics; unbalanced nonlinear load condition

Subjects: Power supply quality and harmonics; Digital signal processing chips; Other power apparatus and electric machines; Power convertors and power supplies to apparatus

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