Adaptive hysteresis and fuzzy logic controlled‐based shunt active power filter resistant to shoot‐through phenomenon

Abstract

This study proposes a novel adaptive hysteresis and fuzzy logic controlled based 3-phase 4-wire full bridge interleaved buck active power filter (FB IB-APF) which eliminates current harmonics without shoot-through phenomenon. Besides mitigating current harmonics, special attention has been given to improve the reliability of the APF by eliminating shoot-through current occurred in the converter circuit. The proposed APF topology consists of three single phase full bridge interleaved buck converter and therefore can be used for high voltage, medium-to-high power application. i d-i q control strategy along with fuzzy logic controller (FLC) have been used for reference current generation. The results with PI controller have also been shown to prove the superiority of FLC. The adaptive hysteresis band current controller is being implemented to obtain optimised switching frequency. The performance of the proposed FB IB-APF is evaluated under sinusoidal, unbalanced and non-sinusoidal voltage source condition. Exhaustive simulation results are presented and finally verified with a real time digital simulator. The performance shows that FB IB-APF brings the total harmonic distortion of the source current well below 5% adhering to IEEE-519 standard. A comparison has also been made, based on switch device power between the IB-APFs using for low power and high power application.

A Three-Phase Four-Leg Inverter-Based Active Power Filter for Unbalanced Current Compensation Using a Petri Probabilistic Fuzzy Neural Network

“…The node itself performs the t-norm operation (product operation) in the Mamdani inference to obtain the inference set according to the rules shown in (15). Moreover, the probabilistic information is processed considering the group of fuzzy grade being independent variables as shown in Equation (16) by using the Bayes' theorem [21].…”

Design and implementation of a cascaded transformer coupled multilevel inverter-based shunt active filter under different grid voltage conditions

“…For an effective application of a SAF, the control technique must be suitable to generate required compensation current during ideal and nonideal condition. In the recent past, many literatures have been addressed focusing on various methods of reference current extraction for significant harmonic elimination . Out of which, a very well‐known control technique, p‐q theory, provides significant harmonic elimination capability during balanced load condition; however, it requires complex mathematical transformation and has to deal with synchronization issues.…”

“…In the recent past, many literatures have been addressed focusing on various methods of reference current extraction for significant harmonic elimination. [14][15][16] Out of which, a very well-known control technique, p-q theory, 17 provides significant harmonic elimination capability during balanced load condition; however, it requires complex mathematical transformation and has to deal with synchronization issues. By the application of instantaneous active and reactive current 18 (i d -i q ) strategy, the system is capable to provide a good dynamic response and suitable in balanced sinusoidal source voltage condition.…”

Experimental investigations on multitudinal sliding mode controller-based interleaved shunt APF to mitigate shoot-through and PQ problems under distorted supply voltage conditions

“…Hong et al developed a prototype of interleaved dual buck full‐bridge 3‐level inverter for grid‐connected system. Patel and Panda introduced interleaved topology to overcome the shoot‐through problem in the area of active filters and developed the model using OPAL‐RT platform. However, the practical considerations of the development are not taken into account at that point of time.…”