Minimum inverter capacity design for LC-hybrid active power filters in three-phase four-wire distribution systems

This study presents a minimum inverter capacity design for three-phase four-wire centre-split inductor-capacitor (LC) coupling hybrid active power filters (LC-HAPFs). Based on its equivalent circuit models in d - q -0 coordinate, the coupling part filtering characteristics of the LC-HAPF without or with neutral inductor can be more clearly illustrated and easily understood, compared with the past analysis based on the generic filter structure. According to the current quality data, the minimum dc-link voltage expressions for the LC-HAPF without and with neutral inductor are deduced and compared. Conventionally, the coupling LC is usually tuned at a higher fifth- or seventh-order harmonic frequency to reduce its cost and size compared with third-order case. When triplen harmonic currents exist significantly, the LC-HAPF with a small tuned neutral inductor can further reduce its minimum dc-link voltage requirement. Thus, the initial cost, switching loss and switching noise of the LC-HAPF can be lowered. Representative simulation and experimental results of the three-phase four-wire LC-HAPF with neutral inductor are presented to verify the filtering characteristics analysis and minimum dc-link voltage expressions, to show the effectiveness of reducing its inverter capacity, switching loss and switching noise in current quality compensation compared with the conventional LC-HAPF.

[1]  Chi-Seng Lam,et al.  Voltage Swell and Overvoltage Compensation With Unidirectional Power Flow Controlled Dynamic Voltage Restorer , 2008, IEEE Transactions on Power Delivery.

[2]  Hirofumi Akagi,et al.  A medium-voltage transformerless AC/DC power conversion system consisting of a diode rectifier and a shunt hybrid filter , 2002 .

[3]  Wei Zhao,et al.  A Novel Three-Phase Hybrid Active Power Filter With a Series Resonance Circuit Tuned at the Fundamental Frequency , 2009, IEEE Transactions on Industrial Electronics.

[4]  P. Rodriguez,et al.  Current Harmonics Cancellation in Three-Phase Four-Wire Systems by Using a Four-Branch Star Filtering Topology , 2009, IEEE Transactions on Power Electronics.

[5]  Keiji Wada,et al.  Design and Performance of a Transformerless Shunt Hybrid Filter Integrated Into a Three-Phase Diode Rectifier , 2007, IEEE Transactions on Power Electronics.

[6]  Wei Zhao,et al.  Dividing Frequency Control of Hybrid Active Power Filter With Multi-Injection Branches Using Improved $i_{p}$--$i_{q}$ Algorithm , 2009, IEEE Transactions on Power Electronics.

[7]  L. E. Conrad,et al.  Electric shock and elevated EMF levels due to triplen harmonics , 1996 .

[8]  Mariusz Malinowski,et al.  Active Power Filter , 2014 .

[9]  Fang Zheng Peng,et al.  A Combined System of Shunt Passive and Series Active Filters , 1990 .

[10]  Richard S. Zhang,et al.  High Performance Power Converter Systems for Nonlinear and Unbalanced Load/Source , 1998 .

[11]  D. Boroyevich,et al.  Small-signal modeling and control of three-phase PWM converters , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[12]  Man-Chung Wong,et al.  Cylindrical coordinate control of three-dimensional PWM technique in three-phase four-wired trilevel inverter , 2003 .

[13]  Kamal Al-Haddad,et al.  A review of active filters for power quality improvement , 1999, IEEE Trans. Ind. Electron..

[14]  Hurng-Liahng Jou,et al.  Novel power converter topology for threephase four-wire hybrid power filter , 2008 .

[15]  Chi-Seng Lam,et al.  Adaptive DC-Link Voltage-Controlled Hybrid Active Power Filters for Reactive Power Compensation , 2012, IEEE Transactions on Power Electronics.

[16]  Ned Mohan,et al.  Active filtering of harmonic currents in three-phase, four-wire systems with three-phase and single-phase nonlinear loads , 1992, [Proceedings] APEC '92 Seventh Annual Applied Power Electronics Conference and Exposition.

[17]  Z.J. Shen,et al.  Design Considerations for Maintaining DC-Side Voltage of Hybrid Active Power Filter With Injection Circuit , 2009, IEEE Transactions on Power Electronics.

[18]  Hirofumi Akagi,et al.  New trends in active filters for power conditioning , 1996 .

[19]  Hirofumi Akagi,et al.  A hybrid active filter for damping of harmonic resonance in industrial power systems , 1998, PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196).

[20]  R.F. de Camargo,et al.  Three-phase Four-Wire Shunt Active Filter to Reduce Voltage and Current Distortions in Distribution Systems , 2006, IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics.

[21]  J.S. Subjak,et al.  Harmonics-causes, effects, measurements and analysis-update , 1989, Conference Record. Industrial and Commercial Power Systems Technical Conference.

[22]  Kwanghee Nam,et al.  A new parallel hybrid filter configuration minimizing active filter size , 1998, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[23]  J. S. Subjak,et al.  Harmonics-causes, effects, measurements and analysis-update , 1989, IEEE Record of Conference Papers on Cement Industry Technical Conference.

[24]  H. Akagi,et al.  A practical approach to harmonic compensation in power systems-series connection of passive and active filters , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[25]  José R. Espinoza,et al.  Improving passive filter compensation performance with active techniques , 2003, IEEE Trans. Ind. Electron..

[26]  L.H.S. Duarte,et al.  The degradation of power capacitors under the influence of harmonics , 2002, 10th International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.02EX630).

[27]  H. Akagi,et al.  A 6.6-kV transformerless shunt hybrid active filter for installation on a power distribution system , 2005, IEEE Transactions on Power Electronics.

[28]  Patricio Salmer.  A Control Strategy for Hybrid Power Filter to Compensate Four-Wires Three-Phase Systems , 2010 .

[29]  M.G. Villalva,et al.  Four-wire Shunt Active Power Filter with Adaptive Selective Current Compensation , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.

[30]  Ambrish Chandra,et al.  Generalised single-phase p-q theory for active power filtering: simulation and DSP-based experimental investigation , 2009 .

[31]  Peter Wolfs,et al.  Systematic identification and review of hybrid active filter topologies , 2002, 2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289).