SHUNT ACTIVE FILTER FOR SOURCE CURRENT HARMONICS

2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
SEEMA ◽  
S. G. ANKALIKI ◽  
◽  
Keyword(s):  
Active Filter ◽  
Shunt Active Filter ◽  
Current Harmonics ◽  
Source Current

scholarly journals Design and Simulation of three Phase three Wire Shunt Active Filter using Instantaneous PQ Theory

2020 ◽  
Vol 15 (1) ◽  
pp. 181-186
Author(s):  
Tilak Giri ◽  
Ram Prasad Pandey ◽  
Sabin Bhandari ◽  
Sujan Moktan ◽  
Lagat Karki
Keyword(s):  
Power Factor ◽  
Communication Systems ◽  
Reactive Power ◽  
Active Filter ◽  
Shunt Active Filter ◽  
Current Harmonics ◽  
Passive Filter ◽  
Three Phase ◽  
Wide Range ◽  
Source Current

Due to intensive use of power converters and other non-linear loads, power quality is degrading. The presence of harmonics in the power lines result in greater power losses in distribution, interference problems in communication systems. Non linearity reduces the efficiency and power factor of the system. As the power factor reduces, the reactive power demanded from the supply increases which have no any contribution in energy transfer, so compensation is required. For this, shunt passive filter has been developed but it is bulky and frequency dependent and has many drawbacks. In contrast to passive filter, shunt active filter (SAF) has been developed which is smaller and has wide range of applications. In this paper, shunt active filter based on p-q theory is demonstrated for compensating reactive power and current harmonics. Simulation has been done with and without SAF and results are presented and ended with recommendation and conclusion. An effort is made to reduce the THD of the source current below 5% (specified by IEEE).

scholarly journals ANN Current Controller Based on PI-Fuzzy Adaptive System for Shunt Power Active Filter

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Moulay Tahar Lamchich
Keyword(s):  
Reactive Power ◽  
Adaptive System ◽  
Control Method ◽  
Average Power ◽  
Active Filter ◽  
Voltage Source ◽  
Nonlinear Loads ◽  
Shunt Active Filter ◽  
Current Harmonics ◽  
Fuzzy Adaptive

This paper deals with the use of triphase shunt active filter which is able to compensate current harmonics, reactive power, and current unbalance produced by nonlinear loads. To perform the identification of disturbing currents, a very simple control method is introduced. It’s formed by a DC voltage regulator and a balance between the average power of load and the active power supplied by the grid. The output current of the voltage source inverter (VSI) must track the reference current. This is done by a neural controller based on a PI-Fuzzy adaptive system as reference corrector. Also to regulate the DC link capacitor voltage a fuzzy logic adaptive PI controller is used.

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