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Proceedings ArticleDOI

A Fast Transient Response Single Phase Active Power Filter

TL;DR: In this article, a fast dynamic response single phase active power filter is proposed, compensating the nonlinear load by improving the power factor to the desired value and also eliminating the harmonics.
Abstract: In this paper a fast dynamic response single phase active power filter is proposed. The method proposed, compensates the non-linear load by improving the power factor to the desired value and also eliminates the harmonics. The scheme is shown to work for both types compensation i.e. power factor correction plus harmonic elimination and harmonic elimination only under sinusoidal and non-sinusoidal supply voltage conditions. The active power filter (compensator) is realized using a single-phase voltage source inverter operated in a hysteresis current control mode. The method is validated through digital simulation results using MATLAB. The results have been shown with ideal and practical compensator with an emphasis on dynamic performance.
Citations
More filters
Proceedings ArticleDOI
06 Jul 2013
TL;DR: In this article, the insulation and conditioning cards for sensors that measure voltage and current signals for to be applied to harmonic control and compensation in an Active Power Filter (APF) are presented.
Abstract: This paper presents the design and implementation of the insulation and conditioning cards for sensors that measure voltage and current signals for to be applied to harmonic control and compensation in an Active Power Filter (APF). Then describes the characteristics and mathematical algorithm in the time domain technique used to obtain the reference current applied to digital control of a Shunt Single Phase Active Power Filter. Finally presents the simulation and integration of the instrumentation system with the algorithm to obtain reference currents implemented in a Digital Signal Processor (DSP) 56F8323 of Freescale®.

3 citations


Cites background from "A Fast Transient Response Single Ph..."

  • ...El código implementado en el DSP 56F8323 para el cálculo de corrientes de referencia para el control del FAP se compone de 5 rutinas de programación: la rutina de captura de variables de tensión y corriente desde el subsistema de instrumentación del FAP, la rutina de normalización de datos, la rutina de cálculo de potencia activa y reactiva, la rutina de filtrado de potencia instantánea y la rutina de cálculo de corriente de referencia [14, 15]....

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Proceedings ArticleDOI
01 Feb 2020
TL;DR: The investigation and execution of hardware implementation for a 1-phase and 3-phase shunt active power filter based on p-q theory (instantaneous reactive power theory) is exhibited.
Abstract: The research presented deals with the control strategy for the power electronics converters in order to reduce the harmonic and to govern the injected active power into the grid The compensation process is basically established on the p-q theory This paper exhibits the investigation and execution of hardware implementation for a 1-phase and 3-phase shunt active power filter based on p-q theory (instantaneous reactive power theory) This theory have been widely used for 3-phases 3- wires and 3-phases 4-wire system but its use has not been carried out for 1-phase system In this paper it has been modified so that it can also be implemented for the 1-phase system as well To use this theory for 1-phase systems, two extra dummy signals were created with a phase difference of 120° These three signals were fed to controller to decrease the THD in load current

1 citations

References
More filters
Journal ArticleDOI
TL;DR: In this paper, an active power filter for single-phase power systems which are comprised of multiple nonlinear loads is presented. But the spectral performance of the active filter is not evaluated.
Abstract: This paper presents active power filters for single-phase power systems which are comprised of multiple nonlinear loads. The paper provides background on the operation of the filter, the details of the power circuit, the details of the control design, representative waveforms, and spectral performance for a filter which supports a 384 W AC controller and a 900 W uncontrolled bridge rectifier. Experimental data indicate that the active filter typically consumes 3% or less of the average load power, suggesting that a parallel filter is an efficient compensation approach. The spectral performance shows that the active filter brings the system into compliance with IEC-555 for decision frequencies in excess of 30 kHz. A discussion is presented outlining an alternative single-phase active filter which uses two controllable switches and is based on a half-bridge topology. >

212 citations

Journal ArticleDOI
01 Jan 1996
TL;DR: In this article, an active power filter (APF) is proposed to control the voltage of an energy-storage capacitor, which employs a new control method, using an integration and sampling technique, to simplify the calculation algorithm for load current.
Abstract: The paper presents an active power filter (APF) circuit which employs a new control method, using an integration and sampling technique, to simplify the calculation algorithm for the real fundamental component of load current. In addition, a new simple control scheme, based on the energy balance concept, is proposed to control the voltage of an energy-storage capacitor. Since the energy change in the energy-storage capacitor can be compensated in the next cycle, and a larger DC bus voltage ripple can be tolerated if a sampling technique is used, a relatively smaller energy storage capacitor is required. The advantages of this APF circuit are simplicity of control circuits, low cost (a smaller energy-storage capacitor) and good transient response. In theory, the time delay for the compensation of reactive power and harmonic currents is zero. The feasibility of this theory is veriffied by using a PSPICE simulation and experimental results.

183 citations

Journal ArticleDOI
01 May 1996
TL;DR: In this article, a simplified control method for the single-phase active power filter is proposed, which has the advantages of using only one current sensor, a simple control circuit and low implementation cost.
Abstract: A simplified control method for the single-phase active power filter is proposed. This method has the advantages of using only one current sensor, a simple control circuit and low implementation cost. A model of this method is derived. A prototype is also developed to demonstrate the performance of this method. The test results show that the proposed active power filter has the expected performance.

181 citations

Proceedings ArticleDOI
21 Nov 2003
TL;DR: In this article, a control strategy of the single-phase active filter using a novel d-q transformation is proposed, which is implemented by using Hilbert transform, by which the instantaneous single phase voltage and current are converted into complex vectors (analytic signals) on the instantaneous basis.
Abstract: In this paper, a control strategy of the single-phase active filter using a novel d-q transformation is proposed This d-q transformation is implemented by using Hilbert transform, by which the instantaneous single-phase voltage and current are converted into complex vectors (analytic signals) on the instantaneous basis Since the fundamental components of voltages and currents are converted into DC components on the d-q coordinate both in the steady and transient states, the harmonics of voltages and currents can be obtained precisely through the low-pass filer installed on the d-q coordinate This results in the economical active filter with a small capacitor suppressing the DC bus voltage fluctuation because the fundamental power can be fully removed from the active filter input

143 citations

Journal ArticleDOI
TL;DR: A simple and effective method for calculating the reference current necessary to feed a shunt active power filter to compensate the power factor and harmonic currents generated by a nonlinear load is described.
Abstract: A basic criterion that determines the behavior of an active power filter is the method of calculating the reference current. There are many ways of generating this reference, but the methods are generally complex and hard to tune. This paper describes a simple and effective method for calculating the reference current necessary to feed a shunt active power filter to compensate the power factor and harmonic currents generated by a nonlinear load. Simulations and experimental results are presented, showing that the proposed circuit may operate at frequencies ranging from 40 to 65 Hz without adjustment.

140 citations