Shunt active power filter control for compensating current power quality problems in three-phase three-wire systems based on an adaptive notch filter

In this paper, a scheme is presented for properly compensating current power quality problems in a network. In this method, only by measuring grid current and using an adaptive notch filter (ANF), a reference sinusoidal current that is in phase with the grid voltage is created for the control system. Using ANFs guarantees the proper efficiency of the network when its frequency changes. A proportional controller and a resonance bank along with pulse width modulation are used in the shunt active power filter (SAPF) control system. One of the features of the resonant controller is its extremely high open-loop gain at its resonance frequency. This high gain causes the controller to accurately track the harmonic components. Simulations are carried out in MATLAB software under various conditions of load and network voltage, such as unbalanced and distortional voltage and changing load. These simulations verify the capabilities of this scheme.

PDF

___

[1] Tey LH, So PL, Chu YC. Improvement of power quality using adaptive SAPF. IEEE T Power Del 2005; 20: 1558-1568.
[2] Jintakosonwit P, Fujita H, Akagi H. Control and performance of a fully-digital-controlled SAPF for installation on a power distribution system. IEEE T Power Elec 2002; 17: 132-140.
[3] Pal Y, Swarup A, Singh B. A control strategy based on UTT and ISCT for 3p4w UPQC. J World Academy of Sci Eng and Tech 2011; 75: 1284-1289.
[4] Li H, Zhou F, Wang Z, Lei W, Wu L. A novel time-domain current-detection algorithm for SAPF. IEEE T Power Sys 2005; 20: 644-651.
[5] Akagi H, Kanazawa Y, Nabae A. Instantaneous reactive power compensators comprising switching devices without energy storage components. IEEE T Ind Appl 1984; 20: 625-630.
[6] Watanabe EH, Stephan RM, Aredes M. New concepts of instantaneous active and reactive powers in electrical systems with generic load. IEEE T Power Del 1993; 8: 697-703.
[7] Fang ZP, Lai JS. Generalized instantaneous reactive power theory for three-phase power systems. IEEE T Instr Meas 1996; 45: 293-297.
[8] Asadi M, Jalilian A, Farahani HF. Compensation of unbalanced non linear load and neutral currents using stationary reference frame in SAPFs. In: IEEE 2010 14th Int Conf on Harmonics and Quality of Power; 2629 Sept; Bergamo, Italy, New York, NY, USA: IEEE. pp. 1-5.
[9] Bhattacharya A, Chakraborty C. A shunt active power filter with enhanced performance using ANN-based predictive and adaptive controllers. IEEE T Ind Elec 2011; 58: 421-428.
[10] Bojoi RI, Griva G, Bostan V, Guerriero M, Farina F, Profumo F. Current control strategy for power conditioners using sinusoidal signal integrators in synchronous reference frame. IEEE T Power Elec 2005; 20: 1402-1412.
[11] Holmes DG, Lipo TA, McGrath BP, Kong WY. Optimized design of stationary frame three phase ac current regulators. IEEE T Power Elec 2009; 24: 2417-2426.
[12] Popescu M, Bitoleanu A, Suru V. A DSP-based implementation of the p-q theory in active power filtering under nonideal voltage conditions. IEEE T Ind Elec 2013; 9: 880-889.
[13] Miret J, Castilla M, Matas J, Guerrero JM, Vasquez JC. Selective harmonic-compensation control for single-phase active power filter with high harmonic rejection. IEEE T Ind Elec 2009; 56: 3117-3127.
[14] Tang Y, Loh PC, Wang P, Choo FH, Gao F, Blaabjerg F. Generalized design of high performance shunt active power filter with output LCL filter. IEEE T Ind Elec 2012; 59: 1443-1452.
[15] Yazdani D, Bakhshai A, Jain P. A three phase adaptive notch filter based approach to harmonic/reactive current extraction and harmonic decomposition. IEEE T Power Elec 2010; 25: 914-923.
[16] Mojiri M, Karimi-Ghartemani M, Bakhshai A. Time-domain signal analysis using adaptive notch filter. IEEE T Signal Proc 2007; 55: 85-93.
[17] Tabatabaei SH, Jalilian A, Gharaei S. Shunt active power filter control by using adaptive notch filter and proportional-integral controller. In: 27th Int power system conference; 1214 Nov 2012; Tehran, Iran.
[18] Rahmani S, Al-Haddad K, Fnaiech F. A model reference generating an optimal dc bus voltage level for a three-phase shunt active power filter. In: IEEE 2004 11th Int Conf on Harmonics and Quality of Power; 1215 Sept 2004; Lake Placid, New York, USA: IEEE. pp. 22-27.
[19] Ogata K. Modern Control Engineering. 5th Ed. New Jersey, USA: Prentice Hall, 2010.
[20] Bhattacharya A, Chakraborty C. A shunt active power filter with enhanced performance using ANN-based predictive and adaptive controllers. IEEE T Ind Elec 2011; 58: 421-428.
[21] Akagi H, Watanabe EH, Aredes M. Instantaneous Power Theory and Application to Power Conditioner. New York, NY, USA: Wiley-IEEE Press, 2007.