HVDC link power quality improvement using a modified active power filter

Antar, Rakan Khalil; Saied, Basil M.; Khalil, Rafid Ahmed; Putrus, Ghanim

doi:10.1109/upec.2012.6398631

Cited by 18 publications

(7 citation statements)

References 4 publications

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“…2. Active Power Filter [1] AF is used as a buffer between supply terminal voltages & PWM voltage produced by active filter by connecting series-inductor at the input of voltage source Inverter Bridge [23][24][25][26]. Classifications of APF occupying on topology, types of converter & on no: of phases, so converter based includes PWM with current, voltage fed PWM inverter bridge structure.…”

Section: Compensatio N Currents Voltagesmentioning

confidence: 99%

"Simulation and Analysis of Active Power Filter for Mitigation of Power Quality Problems in a Wind Based Distributed Generation"

Channa

Koondhar

Mughal

et al. 2021

Journal of Applied and Emerging Sciences

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The adoption of natural energy sources has seen a phenomenal rise during recent decades. The reason is an improvement in their energy conversion capabilities, as well as simplification of their associated electronic control circuitry. The result at their use at a localized distributed generation level. This work is an attempt to understand and present the power quality impacts of wind and solar power generation at a localized system of distribution voltage level. The simulation is finalized in MATLAB/SIMULINK. Next a very popular solving these power quality problems namely, active power filter beside its shunt type is tested over the simulated model. Moreover, its control algorithm is implemented mathematically with P-Q theory and the results are analyzed for better power quality improvement.

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Section: Compensatio N Currents Voltagesmentioning

confidence: 99%

"Simulation and Analysis of Active Power Filter for Mitigation of Power Quality Problems in a Wind Based Distributed Generation"

Channa

Koondhar

Mughal

et al. 2021

Journal of Applied and Emerging Sciences

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“…As I g is a phasor, its magnitude can be expressed by (7), where Re and Im refer to the real and the imaginary parts of I g , respectively…”

Section: Impact Of Voltage Harmonics Injection Angle On Current Harmomentioning

confidence: 99%

“…Some techniques recommend the implementation of passive filters, resulting in more expensive and less energy-efficient systems [3]. The majority of recent efforts focuses on more sophisticated approaches of active filters [4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Voltage harmonic injection angle optimisation for grid current harmonics using a PV converter

Bouloumpasis

Vovos

Georgakas

2019

IET Power Electronics

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In this work, the impact of voltage harmonic injection angle on grid current harmonics using a power converter supplied by photovoltaic (PV) array is studied. Converter and PV non-linear operation cause harmonic distortion, which is superimposed to the existing harmonic content of the grid. First, a general mathematical expression connecting voltage harmonic injection angle and current distortion at the same frequency is theoretically proven. This general expression is verified by experimental results for various converter output levels and grid properties, and voltage harmonic injections at various orders and amplitudes. Since the expression is a convex function, there is a unique injection angle that minimises overall current harmonic at the same frequency. The second contribution of this research is that with a minimum of three injections at random angles the parameters of the general expression can be calculated, thus the optimum injection angle can be determined. In comparison to other works, the knowledge of converter harmonic properties, grid harmonic content or grid connection type (inductive, ohmic, mixed) is not needed.

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“…On the other hand, power semiconductor development with high voltage and high current rates allowed the development of power converters to use in high power systems, such as high voltage DC (HVDC) [6]. These converters can control the power flow and increase the stability of transmission, and in current distribution systems are used to raise quality of the grid [7], reactive power compensation, active filters [8], etc. Distributed generators are connected to grid with power converters and are widely used in other important areas e.g.…”

Section: Introductionmentioning

confidence: 99%