Method of Parallel Active Power Filter Compensation on 3-Phase 3-Wire Nonlinear Unbalanced Load System

Abstract:

The parallel active power filter has been accepted by users because of its’ installing and removing without disturbing other users and so its’ detecting and controlling algorithms have been studied with large efforts .A method about direction of active power flow (DAPF ) was raised in present paper under condition of the 3-phase asymmetrical voltage and 3-wire nonlinear unbalanced load. It’s means that detected currents on the point of common coupling can be put into two parts according the active power flow direction ,one of which is called positive direction current and another is called negative direction current .then decompose the asymmetrical voltage and positive directional current with Symmetrical Component Method. We can obtain the reference current components with clear physical meaning for the paralleled active power filter .The method shows there are several harmful power components could not be eliminated with parallel active power filter.

• Periodical: Applied Mechanics and Materials (Volumes 128-129)
• Pages: 185-189
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.128-129.185
• Online since: October 2011
• Authors: Wen Xue Zou, Sheng Hui Liu
• Keywords: Asymmetrical 3-Phase Voltage, Current Physical Component Theory, Direction of Active Power Follow, Parallel Active Power Filter, Symmetrical Component Method

References

[1] WANG mao-hai, SUN yuan-zhang. Analysis of Power Phenomenon and Classification of Reactive Power in Three-Phase Circuit[J]. Proceeding of the CSEE 2003, 23(10): 63-66.

[2] CHEN Yun-ping., PENG hui, FAN you-ping The Definition Theory and Mathematical Model of Reactive Power for Arbitrarily Periodical Voltage and Current Waveform[J] Proceeding of the CSEE 2006, 26(4): 105-112.

[3] Jacques L. Willems. Reflection on Power Theories for Poly-Phase Non-sinusoidal Voltages and Currents [C]/International School on Non-sinusoidal Currents and Compensation[C]/. June 15-18, 2010, LAGOW, POLAND 5-16.

DOI: 10.1109/isncc.2010.5524474

[4] Li kuang, Liu jinjun, Wang zhaoan, and Wei biao. Strategies and Operating Point Optimization of STATCOM Control for Voltage Unbalance Mitigation in Three-Wire Systems IEEE Transactions on Power Delievery. 2007, 22(1): 413-422.

DOI: 10.1109/tpwrd.2006.876655

[5] L S. Czarnecki . Currents Physical Components(CPC) Concept: a Fundamental of Power Theory[c]/ International School on Non-sinusoidal Currents and Compensation Lagow, Poland. 2008: 1-11.

DOI: 10.1109/isncc.2008.4627483

[6] L S. czarnecki. Orthogonal decomposition of the currents in a 3-phsae nonlinear asymmetrical circuit with a non-sinusoidal voltage source[J]. IEEE Transactions Instrum Measurment. 1988, 37(1): 30-34.

DOI: 10.1109/19.2658

[7] L. S. czarnecki. Power in non-sinuesoidal networks: Their interpretation, analysis, and measurement[J]. IEEE Transactions Instrum. Measuement. 1990, 39(2): 340-345.

[8] Krishnaswarmy Srinivasan. On separating customer and supply side harmonic contributions. IEEE Transactions on Power Delievery. 1996, 11(2): 1003-1012.

DOI: 10.1109/61.489362

[9] Zhang Gui-bin, XU Zheng, WANG Guang-zhu. Study and Simulation of Real-Time Detecting Method for Fundamental Positive ，Negative Sequence Components and Harmonic Components Based on Space Vecto[J]. Proceeding of the CSEE 2001，21（10）：1-5.

DOI: 10.1109/tdc.2006.1668586

[10] Staudt, V. Fryze-Buchholz-Depenbrock: a time-domain power theory[cc]/ . ISNCC 2008. International School on Issue Date: 10-13 June 2008 Lagow Poland.

DOI: 10.1109/isncc.2008.4627481

[11] Fryze S. Active, Reactive and Apparent Power in circuit with non-sinusoidal voltage and current[J]. (in polish) Przegl. Elecktrotech 1931, (7): 193-203.