KIEE International Transaction on Electrical Machinery and Energy Conversion Systems

The Korean Institute of Electrical Engineers (대한전기학회)
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Over Current Protection Schemes for Active Filters with Series Compensators

  • Lee, Woo-Cheol (Dept. of Electrical and Electronic Engineering, Hankyong National University) ;
  • Lee, Taeck-Kie (Dept. of Electrical and Electronic Engineering, Hankyong National University)
  • Published : 2004.09.01
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Abstract

This paper presents and analyses protection schemes for a series active compensator, which consists of a Unified Power Quality Conditioner (UPQC) or a hybrid active power filter. The proposed series active compensator operates as a high impedance "k(D)" for the fundamental components of the power frequency during over current conditions in the distribution system. Two control strategies are proposed in this paper. The first strategy detects the fundamental source current using the p-q theory. The second strategy detects the fundamental component of the load current in the Synchronous Reference Frame (SRF). When over currents occur in the power distribution system momentarily, the proposed schemes protect the series active compensator without the need for additional protection circuits, and achieves excellent transient response. The validity of the proposed protection schemes is investigated through simulation and compared with experimental results using a hybrid active power filter systems.

Keywords

References

  1. B. Singh, K. AI-Haddad, 'A Review of Active Filters f or Power Quality Improvement,' IEEE Trans. On Industrial Electronics, vol. 46, no. 5, pp. 960-971, Oct. 1999
  2. Luis A. Moran, I. Pastorini, and Juan Dixon, 'A Fault Protection Scheme for Series Active Power Filters,' IEEE Trans. on Power Electronics, vol. 14, no. 5, pp. 928-938, Sep. 1998
  3. H. Fujita and H. Akagi, 'The Unified Power Quality Conditioner: The Integration of Series- and ShuntActive Filters,' IEEE Trans. on Power Electronics, vol. 13, no. 2, pp. 315-322, Mar. 1998
  4. H. Akagi, 'New Trends in Active Filters for Power Conditioning,' IEEE Trans. on Industry Applications, vol. 32, no. 6 pp. 1312-1322, Nov./Dec. 1996
  5. L. Moran, I. Pastorini, and R. Wallace, 'Series active power filter compensates current harmonics and voltage unbalance simultaneously,' lEE Proc.-Gener. Trans. Distrib., vol. 147, no. 1, Jan. 2000
  6. F. Z. Peng, H. Akagi, and A. Nabae, 'Compensation Characteristics of the Combined System of Shunt Passive and Series Active Filters,' IEEE Trans. on Industry Applications, vol. 29, no. 1 pp. 144-152, Jan./Feb. 1993
  7. F. Z. Peng, H. Akagi, and A. Nabae, 'A New Approach to Harmonic Compensation in Power systems - A Combined System of Shunt Passive and Series Active Filter,' IEEE Trans. on Industry Applications, vol. 26, no. 6, pp. 983-990, Nov./Dec. 1990
  8. H. Fujita and H. Akagi, 'A Practical Approach to Harmonic Compensation in Power System-Series Connection of Passive and Active Filters,' IEEE Trans. on Industry Applications, vol. 27, no. 6, pp. 1020-1025, Nov./Dec. 1991
  9. F. Z. Peng, 'Application Issues of Active Power Filters,' IEEE Industrial Applications Magazine, pp. 21-30, Sep./Oct. 1998
  10. Da Silva, S.A.O.; Ponoso-Garcia, P.F.;Cortizo, P.C.; Seixas, P.F. 'A Comparative Analysis of Control Algorithms for Three-Phase Line-Interactive UPS Systems with Series-Parallel Active Power Conditioning Using SRF Method,' Proc. IEEE/PESC, vol. 2, pp. 1023-1028, 2000