Gauss–Newton-based fast and simple recursive algorithm for compensation using shunt active power filter

Three-phase, four-wire systems are prone to various power quality (PQ) problems such as load unbalancing, low power factor, harmonics and problem of neutral current. Modified recursive Gauss–Newton (MRGN) algorithm is proposed to mitigate various PQ problems in four-wire distribution systems. The re...

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Veröffentlicht in:IET generation, transmission & distribution Jg. 11; H. 6; S. 1521 - 1530
Hauptverfasser: Chittora, Prakash, Singh, Alka, Singh, Madhusudan
Format: Journal Article
Sprache:Englisch
Veröffentlicht: The Institution of Engineering and Technology 20.04.2017
Schlagworte:
active filters
compensation
control circuits
digital signal processor
dspace 1104
fast MRGN control technique
gating circuits
harmonic problem
linear loads
load unbalancing
Matlab‐Simulink environment
modified recursive Gauss‐Newton algorithm
MRGN algorithm
neutral current problem
Newton method
nonlinear loads
power distribution
power factor
power harmonic filters
power quality problems
power supply quality
PQ problems
Research Article
SAPF
sensors
shunt active power filter
three‐phase four‐wire distribution systems
power harmonic filters
digital signal processor
shunt active power filter
neutral current problem
Newton method
SAPF
gating circuits
MRGN algorithm
fast MRGN control technique
Matlab-Simulink environment
three-phase four-wire distribution systems
harmonic problem
power factor
active filters
power supply quality
dspace 1104
power quality problems
modified recursive Gauss-Newton algorithm
sensors
load unbalancing
linear loads
control circuits
power distribution
compensation
nonlinear loads
PQ problems
ISSN:1751-8687, 1751-8695
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Zusammenfassung:Three-phase, four-wire systems are prone to various power quality (PQ) problems such as load unbalancing, low power factor, harmonics and problem of neutral current. Modified recursive Gauss–Newton (MRGN) algorithm is proposed to mitigate various PQ problems in four-wire distribution systems. The recursive Gauss–Newton method is quite complex, so it is modified to obtain simple and fast MRGN control technique. The proposed algorithm is developed using MATLAB/Simulink environment and tested for mitigation of various PQ problems. Thereafter, a hardware prototype for shunt active power filter (SAPF) is developed along with various sensors, control circuits using dspace 1104 as digital signal processor. Gating circuits provide proper gating pulses to control SAPF as per the new algorithm. Results with linear and non-linear loads have been tested under a variety of loading conditions and thoroughly analysed for its performance.
ISSN:1751-8687
1751-8695
DOI:10.1049/iet-gtd.2016.1222