Comparative Study between Classical P-Q Method and Modern Fuzzy Controller Method to Improve the Power Quality of an Electrical Network

This article presents two methods for the compensation of harmonics generated by a nonlinear load. The first is the classic method P-Q. The second is the controller by modern method of artificial intelligence specifically fuzzy logic. Both methods are applied to a shunt Active Power Filter (sAPF) based on a three-phase voltage converter at five levels NPC topology. In calculating the harmonic currents of reference, we use the algorithm P-Q and pulse generation, we use the intersective PWM. For flexibility and dynamics, we use fuzzy logic. The results give us clear that the rate of Harmonic Distortion issued by fuzzy logic is better than P-Q. Keywords—Fuzzy logic controller, P-Q method, Pulse Width Modulation (PWM), shunt Active Power Filter (sAPF), Total Harmonic Distortion (THD).

[1]  L. Barazane,et al.  Comparative Study between Different Modulation Strategies for Five Levels NPC Topology Inverter , 2011 .

[2]  C. Sharmeela,et al.  Line harmonics reduction using neural based controller for shunt active filters , 2003, TENCON 2003. Conference on Convergent Technologies for Asia-Pacific Region.

[3]  G.-H. Choe,et al.  A new injection method for AC harmonic elimination by active power filter , 1988 .

[4]  S. Saadi,et al.  Apparent power ratio of the Shunt Active Power Filter , 2008, 2008 13th International Power Electronics and Motion Control Conference.

[5]  P Karuppanan,et al.  Cascaded multilevel inverter based active filter for power line conditioners using instantaneous real-power theory , 2011, India International Conference on Power Electronics 2010 (IICPE2010).

[6]  M. S. Boucherit,et al.  Control of capacitor voltage of three phase five-level NPC voltage source inverter. Application to inductor motor drive. , 2007, 2007 International Aegean Conference on Electrical Machines and Power Electronics.

[7]  George C. Verghese,et al.  Principles of Power Electronics , 2023 .

[8]  L. Barazane,et al.  A five level NPC inverter controlled by using SHEPWM strategy , 2011 .

[9]  R. Guedouani,et al.  Modelling and control of three-phase PWM voltage source rectifiers- five-level NPC voltage source inverter-induction machine system , 2010, 18th Mediterranean Conference on Control and Automation, MED'10.

[10]  H. Djeghloud,et al.  Shunt Active Filter Controlled by Fuzzy Logic , 2006 .

[11]  Pradyumn Chaturvedi,et al.  A Study of Neutral Point Potential and Common Mode Voltage Control in Multilevel SPWM Technique , 2008 .

[12]  L.S. Czarnecki,et al.  Instantaneous reactive power p-q theory and power properties of three-phase systems , 2006, IEEE Transactions on Power Delivery.