Harmonic Suppression Using On-Line Particle Swarm Optimization Based Three-Phase Shunt Active Power Filter

The harmonics due to using of nonlinear industry loads based on power electronic elements have resulted in enormous economic loss. Therefore, the power utilities always need new technologies to deal with the harmonic problems. Active power filter (APF) has been considered as an attractive solution due to its effective performance for harmonic mitigation. The compensation currents injected by the APF are determined to eliminate harmonic currents of the nonlinear load and maintain the sinusoidal source currents. These compensation currents are not consistents, but they vary based on the output of the controller techniques. Traditionally, the classical PI controller is used for harmonic compensation with APF but the results of its use do not satisfy for the power suppliers and the power consumers. In this research, a new artificial intelligent technique called Particle Swarm Optimization (PSO) has been introduced to on-line tuning for the PI controller parameters. This selfadaptation makes robust PI controller scheme for facing the generated harmonics during the operation of the nonlinear system. The inverter used in this paper can be considered as a Shunt Active Power Filter (SAPF) in order to eliminate the nonlinear load current harmonics. The hysteresis nonlinear current control method is used in this approach to compare the extracting reference currents and the actual currents in order to generate the pulse gate required for the Active Power Filter. Results obtained by simulations with Matlab/Simulink show that the proposed approach is very flexible and effective for eliminating harmonic currents generated by the nonlinear load with the shunt APF based online PSO tuning. :صخلملا ةیعانصلا لامحلاا مادختسا نع ةجتانلا تایقفاوتلا ةیطخ ریغلا رصانع ىلع ةدمتعملا ةردقلا تدأ ةینورتكللاا رئاسخ ىلإ اذل . ةلئاھ ةیداصتقا حت امئاد جات ةمظنأ . تایقفاوتلا هذھ لكاشم عم لماعتلل ةثیدح تاینقت ىلإ ةردقلا دقو ربتعا ةردقلا حشرم لاعفلا ایقفاوتلا نم دحلا يف لاعفلا ھئادأ ببسب باذج لحك . ت نأ ثیح يتلا ةیضیوعتلا تارایتلا نقحت ةكبشلا ىلإ نم ةجتانلاو لاعفلا ةردقلا حشرم تایقفاوتلا تارایت ةلازإ ىلع لمعت ا نع ةجتانلا لمحل يطخ ریغلا ىلع ظفاحتو لكشلا لا يبیج تارایتل . ردصملا وعتلا تارایتلا هذھ ی . مكاحلا تاینقت جرخ ىلع ةدمتعم ریغتت اھنكلو ةتباث تسیل ةیض دقو يدیلقتلا مكاحلا مدختسا عم تایقفاوتلا ضیوعتل لاعفلا ةردقلا حشرم اذھ يف . نوكلھتسملاو ءابرھكلا تاكرشل ةیضرم ریغ ھمادختسا جئاتن نكلو ،ثحبلا ءاكذلا تاینقت نم ةدیدج ةینقت میدقت مت ىمست يعانطصلاا قت ن ىلثملا میقلا داجیلإ تائیزجلا برس ةی ةلصتملا مل تلاماع لمع ءانثأ ةدلوتملا تایقفاوتلا ةھجاوم يف يوق يلماكتلا يبسانتلا مكاحلا لعج يتاذلا فیكتلا اذھ . يلماكتلا يبسانتلا مكاحلا Minia Journal of Engineering and Technology, (MJET) Vol. 34, No 1, January 2015 99 ماظنلا يطخ ریغلا . لیصوت متو لاعفلا ةردقلا حشرم ثحبلا اذھ يف مدختسملا ةكبشلا عم يزاوتلا ىلع لاعفلا ةردقلا حشرم) (يزاوتلا . تارایتلاو ردصملل ةیلعفلا تارایتلا نیب ةنراقملل يطخ ریغلا ؤطابتلا مكحت ةقیرط ثحبلا اذھ يف اضیا مدختست . لاعفلا ةردقلا حشرم تاباوبل تاضبن دیلوت مث نمو ةیعجرملا تتبثأ دقو للاخ نم اھیلع لوصحلا مت يتلا جئاتنلا هاكاحم لمع مادختساب لامحلاا ةجیتن ةدلوتملا ةیقفاوتلا تارایتلا ةلازإ يف ادج ةلاعفو ةنرم ةحرتقملا ةینقتلا نأ كنیلویمس/ بلاتاملا جمانرب ةلصتملا ةیطخ ریغلا ةیئابرھكلا ةكبشلاب .