Experimental Investigations on Particle Swarm Optimization Based Control Algorithm for Shunt Active Power Filter to Enhance Electric Power Quality

Abstract

Quality power is a very important factor for the proper functioning of appliances and can be enhanced using shunt active power filters (SAPF). This work demonstrates the hardware implementation of synchronous reference frame (SRF) theory based SAPF. This paper presents the technique of particle swarm optimization (PSO) to tune the gain values of the SAPF PI controller to control the voltage of the DClink and enhance its dynamic efficiency. The estimation of gain values of PI controllers using conventional methods does not yield the expected outcomes under varying load conditions. The PSO tuned controller provides better results as compared to traditional tuning methods. The switching scheme is implemented using hysteresis controller to control the SAPF. The main objectives of this approach are to extract the compensating currents and cancel out the harmonics produced by balanced, unbalanced and nonlinear loads. The planned scheme is designed and implemented in MATLAB/Simulink and then its performance on a developed laboratory prototype is validated experimentally.INDEX TERMS Harmonic mitigation, hysteresis current controller, particle swarm optimization, PI controller, power quality shunt active power filter, synchronous reference frame theory. NOMENCLATURE ADALINE Adaptive Linear Neuron. ADC Analog to Digital Converter. ANN Artificial Neural Network. CDC DC-link Capacitor. C f Ripple Filter Capacitor. d n Switching Function. DAC Digital to Analog Converter. DSTATCOM Distribution Static Compensator. e Error. FLC Fuzzy Logic Control. FPGA Field Programmable Gate Array. g n Switching Function i c Compensating Current.

PSO based optimized PI controller design for hybrid active power filter

“…The proposed solution employs a hybrid active power filter optimized by PSO to enhance power quality. The integral of the time-weighted absolute error and the maximum overshoot is the primary metric for measuring success in system control, minimization of fitness functions specified in (9).…”

“…Reduced harmonic distortion in industrial power systems has traditionally been achieved through the use of passive filters [4]− [6]. However, they have drawbacks such as erratic performance, unintended harmonic current absorption from neighboring non-linear loads, and the possibility of harmonic resonance with the system's series impedance, which could lead to further harmonic propagation throughout the power system [7]− [9]. To increase the power factor and reduce the harmonics, capacitors, high pass filters, and shunt passive filters made out of inductors and capacitors have traditionally been used, but these methods are permanent, clumsy, and can cause new utility resonances [10], [11].…”

Solar photovoltaic‐interfaced shunt active power filter implementation for power quality enhancement in grid‐connected systems

“…These harmonics result in the total harmonic distortion (THD) level increasing and have deleterious effects on the equipment that makes up the electrical system, such as overloading, overheating, and interfering with communication networks. [9][10][11] Passive LC filters have traditionally been employed in electric utility networks to mitigate harmonic distortion's effects. However, they could have been more effective due to their drawbacks, which included a poor performance in suppressing harmonics, a large size, fixed compensation, and a resonance problem.…”

“…Applications for NLs include industrial, residential, and commercial uses that draw large harmonic currents. These harmonics result in the total harmonic distortion (THD) level increasing and have deleterious effects on the equipment that makes up the electrical system, such as overloading, overheating, and interfering with communication networks 9–11 …”

Electromechanical Integration Construction of Automobile Inspection Equipment Based on Particle Swarm Optimization

“…In order to solve the problem of mutual influence between sensors, some scholars have proposed many Doppler effect analysis technologies with strong practicability, high effective and reliable performance, strong ability to adapt to various complex environments and low cost. Some scholars have studied the electromechanical system of vehicle detection equipment using PSO algorithm and designed an auto disturbance rejection strategy with good robustness [5][6]. Therefore, based on PSO algorithm, this paper studies the mechatronics of automobile detection equipment.…”