Circuit for Balancing Harmonic-Polluted Three-Phase Networks

• Autorzy: Saied M. M.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a new circuit capable of balancing harmonics-polluted three-phase power networks supplying single-phase loads. It takes into account the negative and positive sequences exhibited by the fifth and seventh harmonics, respectively. The concept extends the relations of the Steinmetz circuit, which are based exclusively on fundamental frequency considerations. The Steinmetz circuit does not, therefore, guarantee the balancing of the different harmonics in the line currents. Furthermore, it can lead to resonances between the capacitive and inductive elements in the two added balancing branches. A procedure for identifying the topology and the circuit parameters of the proposed connection is given. The results of a detailed case study are presented in order to demonstrate the superiority of the proposed circuit over the conventional Steinmetz connection.

Słowa kluczowe

EN

harmonic analysis; power quality; load balancing; frequency scan; Steinmetz circuit

• Wydawca: AGH University of Science and Technology ; Lodz University of Technology
• Czasopismo: Electrical Power Quality and Utilisation. Journal
• Rocznik: 2013
• Tom: Vol. 16, iss. 1
• Strony: 19--24
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Saied M. M.

• Electrical Engineering Department, College of Engineering and Petroleum, Kuwait University

Bibliografia

• 1. M i l l e r T. J .: Reactive Power Control in Electric Systems. Book, Wiley-Interscience, 1982, Chapter 1.
• 2. G y u g y i L . , O t t o R . , P u t m a n T. : Principles and Application of Static Thyristor-Controlled Shunt Compensators. IEEE Trans.on Power Apparatus & Systems, Vol. 97, Sept. /Oct. 1978, pp. 1935–1945.
• 3. C h e n T.: Criteria to Estimate the Voltage Unbalances due to High Speed Railway Demands. IEEE Trans. on Power Systems, Vol. 9, No. 3, August 1994, pp. 1672–1678.
• 4. L e e S . , Wu C .: On-line Reactive Power Compensation Schemes for Unbalanced three-phase four Wire Distribution Feeders. IEEE Trans. on Power Delivery, Vol. 8, No. 4, Oct. 1993, pp. 1958–1965.
• 5. J o r d i O . , S a i n z L . , C h i n d r i s M . : Steinmetz System Design under Unbalanced Conditions. European Transactions on Electric Power, Vol. 12, No. 4, 2007, pp. 283–290.
• 6. C z a r n e c k i L . : Reactive and Unbalanced Currents Compensation in three-phase asymmetrical Circuits under non-sinusoidal Conditions. IEEE Trans. Instrum. Meas., Vol. 38, No. 3, Jan. 1989, pp. 754–759.
• 7. C z a r n e c k i L . Minimization of Unbalanced and Reactive Currents in asymmetrical Circuits with non-sinusoidal Voltage. Proc. Inst. Elect. Eng. B, Vol. 139, No. 4, July 1992, pp. 347–354.
• 8. C a r o M . , S a i n z L . , P e d r a J . : Study of the Power System Harmonic Response in the Presence of the Steinmetz Circuit. Electric Power Systems Research 2006, Vol. 76, No.12, pp. 1055-1063.
• 9. S a i n z L . , P e d r a J . , C a r o M . : Background Voltage Distortion Influence on Power Electric Systems in the Presence of the Steinmetz Circuit. Electric Power Systems Research 2009, Vol. 79, No. 1, pp. 161–169.
• 10. S a i n z L . , P e d r a J . , C a r o M . : Steinmetz Circuit Influence on Electric System Harmonic Response. IEEE Trans.on Power Delivery, Vol. 20(1), No. 2, 2005, pp. 1143–1150.
• 11. S a i n z L . , C a r o M . , C a r o E .: Analytical Study of the Series Resonance in Power Systems With the Steinmetz Circuit . IEEE Trans. on Power Delivery, Vol. 24, No. 4, 2009, pp. 2090–2098.
• 12. Ab d e l a z i z A.Y. , Mekhamer S. F. , I s mael S.M. : Sources and Mitigation of Harmonics in Industrial Electrical Power Systems: State of the Art. Online Journal on Power and Energy Engineering (OJPEE), Vol. 3, No. 4, pp. 320–332, 2012.
• 13. S a i e d M . : Effect of the Background Harmonics and the Network’s Impedance Characteristics on the Operation of Shunt Capacitors. STM Journal of Power Electronics and Power Systems, Vol. 3, Issue1, pp. 22–32, 2013.