Performance for passive and active power filter in reducing harmonics in the distribution system

2005 ◽  
Author(s):  
M. Izhar ◽  
C.M. Hadzer ◽  
M. Syafrudin ◽  
S. Taib ◽  
S. Idris
Keyword(s):  
Distribution System ◽  
Active Power Filter ◽  
Active Power ◽  
Power Filter

A Shunt Active Power Filter for 12 Pulse Converter Using Source Current Detection Approach

2016 ◽  
Vol 7 (1) ◽  
pp. 225 ◽  
Author(s):  
Rajesh T ◽  
Nirmalkumar A
Keyword(s):  
Distribution System ◽  
Active Power Filter ◽  
Active Power ◽  
Detection Methods ◽  
Shunt Active Power Filter ◽  
Power Distribution System ◽  
Power Filter ◽  
Pulse Converter ◽  
Source Current ◽  
Current Detection

A shunt Active Power Filter (APF) with current detection at the source side is considered as a closed-loop system from the view of the whole power distribution system, which is expected with better harmonics filtering performance compared with conventional current detection methods such as load current detection and open loop control.  This paper introduces an efficient source current detection method (direct) control scheme to mitigate the grid current harmonics generated by the twelve pulse converter.  The proposed system uses Control Rectifier (12 –pulse converter) which efficiently regulates the DC voltage by varying the angle of each 6 pulse converter. Moreover, the proposed system uses three winding transformer which eliminates the harmonics during equal angles switching at each six pulse converter which in turn simplifies the operation of the SAPF. The proposed system is simulated in MATLAB SIMULINK to evaluate the performance of the proposed system.

Suppression effects of active power filter on harmonics of distribution system including capacitors

1996 ◽  
Vol 117 (1) ◽  
pp. 60-70 ◽  
Author(s):  
Kiyoshi Oku ◽  
Osamu Nakamura ◽  
Jun-Ichi Inoue ◽  
Masakasu Kohata
Keyword(s):  
Distribution System ◽  
Active Power Filter ◽  
Active Power ◽  
Power Filter ◽  
Suppression Effects

Real Time Harmonic Mitigation Using Fuzzy Based Highly Reliable Three Dual-Buck Full-Bridge APF for Dynamic Unbalanced Load

2018 ◽  
Vol 19 (3) ◽  
Author(s):  
Ranjeeta Patel ◽  
Anup Kumar Panda
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
Dynamic Performance ◽  
Active Power Filter ◽  
Active Power ◽  
Voltage Source ◽  
Switching Frequency ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Inverter Circuit

Abstract This study presents a highly reliable 3-phase 4-wire, three dual-buck full-bridge shunt active power filter (3 DB FB APF) for distribution system. The proposed topology uses three single phase dual buck full bridge inverter sharing the same dc-link capacitor with high utilization of dc-bus voltage. The dual buck inverter circuit composed of one power switch and one diode leg instead of two power switches conventional inverter leg effectually eliminate the undesirable “shoot-through” phenomenon occurs in conventional inverter circuit. The fuzzy and adaptive hysteresis current controller based id-iq control strategy has been adopted to generate optimized switching frequency. For validation, the proposed topology is implemented in the OPAL-RT LAB using OP5142-Spartan 3 FPGA. The dynamic performance of the proposed 3 DB FB APF is assessed for sinusoidal, unbalanced and non-sinusoidal voltage source condition with unbalanced non-linear load that is when both three-phase and single-phase loads are present in the system. Besides, the results with proportional-integral (PI) controller are compared with FLC in terms of harmonic compensation. Furthermore, a comparison has been made between split capacitor dual buck half bridge active power filter (2C DB HB APF) and proposed 3 DB FB APF based on switch power rating.

SOGI Algorithm-Based Shunt Active Power Filter for Grid Integration of Photovoltaic Systems

2016 ◽  
Vol 25 (05) ◽  
pp. 1650046 ◽  
Author(s):  
P. Manimekalai ◽  
R. Harikumar ◽  
S. Raghavan
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
Phase Distribution ◽  
Active Power Filter ◽  
Active Power ◽  
Small Scale ◽  
Reference Source ◽  
Pv System ◽  
Shunt Active Power Filter ◽  
Power Filter

In this paper, photovoltaic (PV) system interfaced single-phase shunt active power filter (SAPF) is proposed to supply uninterrupted and clean power to small-scale industries and domestic customers. The second-order generalized integrator (SOGI) is employed to extract the reference current of PV-SAPF. The proposed topology does not need voltage measurement and sensors on both the AC and DC side, just two current sensors are accustomed to measure converter and load currents. To be able to acquire an accurate reference source current, the distorted load is only processed through the SOGI control algorithm which does not need voltage-related information. The PV interfaced SAPF mainly is used for sustainable compensation of current disturbances and voltage interruption of the single-phase distribution system. The proposed topology utilizes the PV energy with an energy storage unit to meet the active power requirement of the utility grid. Besides, it exports the power generated in the PV system to the load during unavailability of grid supply. The PV-SAPF system subject to different types of loads can assess the performance of the system under steady-state and dynamic conditions. To validate the effectiveness of the proposed controller for PV interfaced SAPF, the simulation and experimental results are presented.

scholarly journals Harmonics Mitigation Techniques in Renewable Energy Systems using Shunt Active Power Filter

2020 ◽  
Vol 9 (5) ◽  
pp. 377-381
Keyword(s):  
Power Quality ◽  
Distribution System ◽  
Fuzzy Logic Controller ◽  
Active Power Filter ◽  
Active Power ◽  
Active Filter ◽  
Nonlinear Load ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Simulation Results

This paper depicts the methodology of improving power quality at load end is connected with renewable source of energy for power generation. The excessive of power physics devices in distribution system has evolved the matter of power quality. Shunt active power filter (SAPF) acts as a current supply and suppresses the harmonics by introducing the same amount of compensating opposite harmonics component along with common coupling. Simulation design of SAPF based on d-q model is implemented using MATLAB/simulink Toolbox. It explores the modelling of a Proportional Integral (PI) and fuzzy logic controller (FLC) based, SAPF for a 3 wire network to compensate current harmonics fed to a nonlinear load. The proposed model can be validated and its robustness will be checked through the simulation results. Simulation results illustrate that the logic based active filter out performs the PI based shunt active filter.

scholarly journals SRF based Shunt Active Power Filter Integrated with Microgrid for Harmonics Mitigation

2019 ◽  
Vol 8 (12) ◽  
pp. 869-874
Keyword(s):  
Power System ◽  
Distribution System ◽  
Electrical Power ◽  
Harmonic Distortion ◽  
Active Power Filter ◽  
Active Power ◽  
Electrical Power System ◽  
Shunt Active Power Filter ◽  
Current Harmonics ◽  
Power Filter

“The increased penetration of Distributed Energy Resources (DER) is inspiring the entire design of conventional electrical power system. “A Microgrid (MG) includes distributed generation, loads, energy storage, and a control system that is competent of working in grid-connected mode and/or islanded mode. Power quality (PQ) problems are one of the major technical challenges in MG power system. To get better PQ of energy supply, it is essential to analyze the harmonics distortion of the system. Moreover, harmonic distortion in a MG networks has significantly reduced PQ, which affects the stability of the system. In order to diminish the harmonics, shunt active power filter (SAPF) has been extensively useful and it is verified to be the best solution to current harmonics. The present paper proposes the mitigation of harmonics of a MG system using shunt active power filter (SAPF). However, the SAPF is employed for reimbursing the harmonics concurrently in the distribution system. The proposed model is developed in MATLAB/Simulink and the result obtained validates the superiority of proposed technique over others in terms of harmonics elimination.”

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