Adaptive Fuzzy Hysteresis Band Current Controller for Four-Wire Shunt Active Filter

This paper presents an adaptive fuzzy hysteresis band current controller for four‐wire shunt active power filters to eliminate harmonics and to compensate reactive power in distribution systems in order to keep currents at the point of common coupling sinusoidal and in phase with the corresponding voltage and the cancel neutral current. The conventional hysteresis band known for its robustness and its advantage in current controlled applications is adapted with a fuzzy logic controller to change the bandwidth according to the operating point in order to keep the frequency modulation at tolerable limits. The algorithm used to identify the reference currents is based on the synchronous reference frame theory (dqγ). Finally, simulation results using Matlab/Simulink are given to validate the proposed control.

[1]  Júlio S. Martins,et al.  Active filters for power quality improvement , 2001 .

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

[3]  Josef Tlustý,et al.  Optimal control of shunt active power filters in multibus industrial power systems for harmonic voltage mitigation , 2006, Math. Comput. Simul..

[4]  Mehmet Uçar,et al.  Control of a 3-phase 4-leg active power filter under non-ideal mains voltage condition , 2008 .

[5]  F. Blaabjerg,et al.  Performance Improvement of Shunt Active Power Filter With Dual Parallel Topology , 2007, IEEE Transactions on Power Electronics.

[6]  J. G. Khor,et al.  Neural and Fuzzy Logic Control of Drives and Power Systems , 2002 .

[7]  Bor-Ren Lin,et al.  Shunt active filter with three-phase four-wire NPC inverter , 2004, The 2004 47th Midwest Symposium on Circuits and Systems, 2004. MWSCAS '04..

[8]  Alfred Rufer,et al.  Unified power quality conditioner based on current source converter topology , 2001 .

[9]  Mauricio Aredes,et al.  Analysis and Software Implementation of a Robust Synchronizing PLL Circuit Based on the pq Theory , 2006, IEEE Transactions on Industrial Electronics.

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

[11]  Mauricio Aredes,et al.  Three-phase four-wire shunt active filter control strategies , 1997 .

[12]  Murat Kale,et al.  An adaptive hysteresis band current controller for shunt active power filter , 2005 .

[13]  F. Mekri,et al.  Fuzzy Hysteresis Control and Parameter Optimization of a Shunt Active Power Filter , 2005, J. Inf. Sci. Eng..