The Application of Active Power Filter in Harmonic Suppression and Reactive Power Compensation with Medium and Small Capacity

2012 ◽  
Vol 485 ◽  
pp. 239-244
Author(s):  
Wei Shi ◽  
Chuan Jin Huang ◽  
Chun Xiang Xu
Keyword(s):  
High Efficiency ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Active Power ◽  
System Structure ◽  
Harmonic Suppression ◽  
Power Conservation ◽  
Three Phase ◽  
Practical Field ◽  
Small Capacity

Focusing on the harmonic suppression and reactive power compensation with the medium and small capacity, the paper gives the solution based on the economical three-phase four-switch APF which uses the instruction current detecting algorithm based on the active power conservation to achieve the detection in real time mode. The whole system structure, the hardware implementation and software workflow analysis for the control system are presented. Application in the practical field project proves that the designed product works in high efficiency steadily.

scholarly journals Grid-tie three-phase inverter with active power injection and reactive power compensation

2016 ◽  
Vol 85 ◽  
pp. 854-864 ◽  
Author(s):  
Leonardo P. Sampaio ◽  
Moacyr A.G. de Brito ◽  
Guilherme de A. e Melo ◽  
Carlos A. Canesin
Keyword(s):  
Reactive Power ◽  
Reactive Power Compensation ◽  
Active Power ◽  
Phase Inverter ◽  
Power Injection ◽  
Three Phase ◽  
Three Phase Inverter

scholarly journals Hysteresis Control for Shunt Active Power Filter under Unbalanced Three-Phase Load Conditions

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Z. Chelli ◽  
R. Toufouti ◽  
A. Omeiri ◽  
S. Saad
Keyword(s):  
Reactive Power ◽  
Harmonic Distortion ◽  
Active Power Filter ◽  
Active Power ◽  
Harmonic Suppression ◽  
Nonlinear Loads ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Three Phase ◽  
Control Scheme

This paper focuses on a four-wire shunt active power filter (APF) control scheme proposed to improve the performance of the APF. This filter is used to compensate harmonic distortion in three-phase four-wire systems. Several harmonic suppression techniques have been widely proposed and applied to minimize harmonic effects. The proposed control scheme can compensate harmonics and reactive power of the nonlinear loads simultaneously. This approach is compared to the conventional shunt APF reference compensation strategy. The developed algorithm is validated by simulation tests using MATLAB Simulink. The obtained results have demonstrated the effectiveness of the proposed scheme and confirmed the theoretical developments for balanced and unbalanced nonlinear loads.

Modelling and Analysis of PV-Based Shunt Active Filter with BESS and Conservative Power Theory for Enhancing Power Quality

2019 ◽  
Vol 20 (6) ◽  
Author(s):  
Gomathi Ramalingam ◽  
Ajay Kumar Choudhary ◽  
Suresh Mikkili
Keyword(s):  
Power Quality ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Active Power ◽  
Active Filters ◽  
Shunt Active Filter ◽  
Three Phase ◽  
Quality Issues ◽  
Conservative Power Theory ◽  
Conservative Power

Abstract Power Quality has always been a major concern ever since the increase in the usage of many power electronic loads such as Personal Computers (PCs), TVs, variable frequency drives in nearly every household. These loads are a major source of harmonics into the distribution system. Unbalanced Three-phase loads or different single-phase loads result in unbalance in the three-phase voltages and currents in the grid. Equipment damage, Loss of data, nuisance tripping, overheating of wires, relay tripping are few of the major issues caused due to power quality. Also, there is an increase in the awareness about the various power quality issues as well as its ill-effects amongst the consumers. Hence, it is essential to improve the quality of the power supplied. Active and Passive filters play a huge role in the mitigation of power quality issues. In recent years, usage of active filters has increased because tuning is possible for various harmonic elimination and active filters when combined with a storage system can provide active as well as reactive power compensation. The fast depletion of non-renewable sources of energy and its effect on the environment has shifted the focus on the usage of non-renewable energy sources such as solar energy, wind energy, etc for the production of electricity. In this research work, solar energy is combined with shunt active filter for the mitigation of various power quality issues occurring in a grid-connected non-linear and unbalanced three-phase load. The active power filter will provide reactive power compensation to the non-linear load and active power delivery for unbalanced loads such the grid current and voltage will remain balanced and the stress on the grid is reduced while meeting the load demand. A battery system is also integrated to store the excess energy that may be generated by the Photo-Voltaic(PV) array and acts as a source of energy when PV array output is low or nil. Conservative Power Theory is used for controlling the power injection into the system by the Voltage Source Converter(VSC). The proposed system is verified using MATLAB/SIMULINK.

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