Enhanced Instantaneous Power Theory with Average Algorithm for Indirect Current Controlled Three-Level Inverter-Based Shunt Active Power Filter under Dynamic State Conditions

An enhanced harmonics extraction algorithm based on Instantaneous Power (PQ) Theory is proposed for indirect current controlled (ICC) three-level neutral point diode clamped (NPC) inverter-based shunt active power filter (SAPF). SAPF is famous in current harmonics mitigation for its flexibility in dealing with dynamic state conditions. As for its controller, PQ Theory has served the major role in harmonics extraction algorithm due to its simple implementation features. However, it suffers from serious time delay due to its dependency on sluggish numerical filters. Furthermore, the algorithm is mostly designed to suit the operation of direct current controlled (DCC) SAPF which requires the knowledge of actual SAPF current (injection current). This leads to inaccurate mitigation as the injection current does not possess the exact information on actual source current which suffers from switching ripples problems. Therefore, two major modifications are introduced involving the development of mathematical average algorithm to replace numerical filter for fundamental real power computation and the formation of mathematical current relationship to change DCC to ICC based operation. The proposed algorithm is developed and evaluated in MATLAB/Simulink. From the simulation results, significant improvement in terms of Total Harmonic Distortion (THD) and response time is presented in comparison to conventional algorithm.

[1]  Alexandru Bitoleanu,et al.  A DSP-Based Implementation of the p-q Theory in Active Power Filtering Under Nonideal Voltage Conditions , 2013, IEEE Transactions on Industrial Informatics.

[2]  K. Al-Haddad,et al.  Performance comparison of two current control techniques applied to an active filter , 1998, 8th International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.98EX227).

[3]  D. Soto,et al.  A comparison of high-power converter topologies for the implementation of FACTS controllers , 2002, IEEE Trans. Ind. Electron..

[4]  J. H. Marks,et al.  Predictive transient-following control of shunt and series active power filters , 2002 .

[5]  Mohd Amran Mohd Radzi,et al.  Neural Network and Bandless Hysteresis Approach to Control Switched Capacitor Active Power Filter for Reduction of Harmonics , 2009, IEEE Transactions on Industrial Electronics.

[6]  Shahrokh Farhangi,et al.  Improvement of Dynamic Behavior of Shunt Active Power Filter Using Fuzzy Instantaneous Power Theory , 2014 .

[7]  Gustavo Ramos,et al.  Instantaneous p-q theory for harmonic compensation via shunt active power filter , 2013, 2013 Workshop on Power Electronics and Power Quality Applications (PEPQA).

[8]  S. Afsharnia,et al.  Online Wavelet Transform-Based Control Strategy for UPQC Control System , 2007, IEEE Transactions on Power Delivery.

[9]  Chin E. Lin,et al.  Reactive and harmonic current compensation for unbalanced three-phase systems using the synchronous detection method , 1993 .

[10]  Dong-Seok Hyun,et al.  A novel PWM scheme for a three-level voltage source inverter with GTO thyristors , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[11]  Hirofumi Akagi,et al.  Active Harmonic Filters , 2005, Proceedings of the IEEE.

[12]  P.L. So,et al.  Improvement of power quality using adaptive shunt active filter , 2005, IEEE Transactions on Power Delivery.

[13]  Haibing Hu,et al.  Design and Implementation of Three-Level Space Vector PWM IP Core for FPGAs , 2007, IEEE Transactions on Power Electronics.

[14]  Ashwin M. Khambadkone,et al.  A Space Vector PWM Scheme for Multilevel Inverters Based on Two-Level Space Vector PWM , 2006, IEEE Transactions on Industrial Electronics.

[15]  Review of Causes and Effect of Harmonics on Power System , 2014 .

[16]  R. D. Henderson,et al.  Harmonics: the effects on power quality and transformers , 1994, [Proceedings] IEEE 1993 Annual Textile, Fiber and Film Industry Technical Conference.

[17]  Bhim Singh,et al.  Neural Network-Based Selective Compensation of Current Quality Problems in Distribution System , 2007, IEEE Transactions on Industrial Electronics.

[18]  G. Bhuvaneswari,et al.  Comparison of Synchronous Detection and I. Cosϕ Shunt Active Filtering Algorithms , 2006, 2006 International Conference on Power Electronic, Drives and Energy Systems.

[19]  S. R. Wagh,et al.  A Comparative Study on Compensating Current Generation Algorithms for Shunt Active Filter under Non-linear Load Conditions , 2013 .

[20]  Avik Bhattacharya,et al.  A Shunt Active Power Filter With Enhanced Performance Using ANN-Based Predictive and Adaptive Controllers , 2011, IEEE Transactions on Industrial Electronics.

[21]  K.H. Bhalodi,et al.  Space Vector Modulation with DC-Link Voltage Balancing Control for Three-Level Inverters , 2006, 2006 International Conference on Power Electronic, Drives and Energy Systems.

[22]  Krishna Busawon,et al.  Fast-individual-harmonic-extraction technique , 2005 .

[23]  O. Vodyakho,et al.  Three-Level Inverter-Based Shunt Active Power Filter in Three-Phase Three-Wire and Four-Wire Systems , 2009, IEEE Transactions on Power Electronics.

[24]  Chennai Salim,et al.  Three-level (NPC) Shunt Active Power Filter Performances based on Fuzzy Controller for Harmonic Currents Compensation under Non-Ideal Voltage Conditions , 2014 .

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

[26]  B. S. Ram,et al.  INSTANTANEOUS POWER THEORY BASED ACTIVE POWER FILTER: A MATLAB/ SIMULINK APPROACH , 2008 .

[27]  Reza Ghazi,et al.  Modified PWM Technique for Harmonic Reduction , 2012 .

[28]  Juntao Fei,et al.  A Novel Sliding Mode Control Technique for Indirect Current Controlled Active Power Filter , 2012 .

[29]  T. Kulworawanichpong,et al.  The DQ Axis With Fourier (DQF) Method for Harmonic Identification , 2007, IEEE Transactions on Power Delivery.

[30]  A. Pigazo,et al.  A Recursive Park Transformation to Improve the Performance of Synchronous Reference Frame Controllers in Shunt Active Power Filters , 2009, IEEE Transactions on Power Electronics.

[31]  Viktor Valouch,et al.  Analytical Modeling and Simulation of Four-Switch Hybrid Power Filter Working with Sixfold Switching Symmetry , 2012 .

[32]  Fang Zheng Peng,et al.  Multilevel inverters: a survey of topologies, controls, and applications , 2002, IEEE Trans. Ind. Electron..

[33]  Dongsheng Zhou,et al.  Experimental comparisons of space vector neutral point balancing strategies for three-level topology , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[34]  Josep M. Guerrero,et al.  A New Synchronous Reference Frame-Based Method for Single-Phase Shunt Active Power Filters , 2013 .

[35]  Hirofumi Akagi,et al.  Instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components , 1984, IEEE Transactions on Industry Applications.

[36]  K. Al-Haddad,et al.  Experimental design and simulation of a modified PWM with an indirect current control technique applied to a single-phase shunt active power filter , 2005, Proceedings of the IEEE International Symposium on Industrial Electronics, 2005. ISIE 2005..

[37]  Bharti Dwivedi,et al.  POWER QUALITY ISSUES, PROBLEMS, STANDARDS & THEIR EFFECTS IN INDUSTRY WITH CORRECTIVE MEANS , 2011 .

[38]  S.J. Finney,et al.  Three-Phase, Three-Wire, Five-Level Cascaded Shunt Active Filter for Power Conditioning, Using Two Different Space Vector Modulation Techniques , 2007, IEEE Transactions on Power Delivery.

[39]  Mohamed Adel,et al.  Improved Active Power Filter Performance Based on an Indirect Current Control Technique , 2011 .