This paper will discuss and analyze the simulation result for a threephase shunt active power filter using matlabsimulink program. The proposed system compensates the sag and swell problems efficiently in matrix converter. The purpose of this paper is to present a harmonic mitigation using a shunt active filter with accurate harmonic current identification and compensation based on instantaneous active and reactive power theory and a selftuning filter for the harmonic isolation and a fuzzy hysteresis band technique for the current control. Design of shunt active power filter to eliminate harmonics. Design and simulation of three phase shunt active power filter using srf 653 figure 2.
Shunt active and series active filtersbased power quality. This example shows the use of a shunt active harmonic filter ahf to minimize the harmonic content propagated to the source from a nonlinear load. Combination of passive, series and shunt active filters 4. Jul 22, 20 shunt active power filter based on pq theory. Pdf simulation a shunt active power filter using matlab.
Style of shunt active power filter to get rid of the harmonic currents and also to compensate the reactive power under distorted as well as imbalanced source voltages in steady condition. The shunt active power filter operating principle is to inject into the power supply network the same harmonics current as that generated by the nonlinear load but in the opposite direction. May 08, 2018 this is a video demonstration of the simulink model of shunt apf. In this paper, a proton exchange membrane pem fuel cell power plant is used to improve the filtering performance of the conventional active power filter, as well as simultaneously contribute with the electric grid to supply the power to the load. Shunt active power filtershapes of load, source and desired. Therefore they can be considered to be harmonic current sources. Different configurations of apf are available on the market for commercial use, and among them a shunt apf is widely used. Pdf simulation results of a shunt active power filter with control. Shunt active filter series active filter and hybrid active filter.
Threephase threelevel npc shunt active power filter. Active shunt filter for harmonic mitigation in wind turbines. Analysis of power quality improvement using active shunt. In this way, the power distribution system sees the nonlinear load and the active power filter as an ideal resistor.
Shunt active filter control strategies for power quality. Ragavan k electrical engineering indian institute of technology gandhinagar gujarat, india382424 email. This paper proposes a series active filter and shunt active filter to minimize the power quality impact present in matrix converters instead of passive filter. Control strategy to get the accuracy of the apf and to simplify the control scheme, an advanced control strategy is designed as shown in. The active power filter is expected to generate the appropriate compensating. Buy shunt active filter control strategies for power quality improvement. Shunt active power filter sapf is the best solution to minimize harmonic contamination, but its effectiveness is strictly dependent on how quickly and accurately its control algorithms can perform. To obtain these performances some contributions were brought, both in the power part and in the control part, those are highlighted. One such equipment installed is the shunt active power filter which operates to lower the harmonic current flowing in the ac system. Pdf a grid currentcon trolling shunt active power filter. The fivelevel inverter is used as a shunt active power filter, taking advantages of the multilevel inverter such as low harmonic distortion and. Apr 11, 20 analysis of shunt apf active powerfilter 1.
Design and implementation of a threelevel active power. The control block diagram of general shunt active power filters is shown in fig. Shunt active filter an overview sciencedirect topics. Again, the power topology of the active filter is basically the same as that of the active rectifier i. Active filter cancels the harmonics present in load current, and source current will remain sinusoidal and in phase with neutral voltage. Phase shift of the harmonic current is 180 degrees. The active power filters have gained much more attention because of its excellent performance to mitigate the harmonic and reactive power issues. A shunt active power filter with enhanced performance using annbased predictive and adaptive controllers, ieee transactions on industrial. Active power filters are increasingly used to compensate for harmonics and reactive power generated by nonlinear loads which are installed by various utility. In next step the simulation model is connected with shunt active power filter as shown in fig. Citeseerx application of a shunt active power filter.
In this case the shunt active power filter operates as a current source injecting the harmonic components generated by the load but phase shifted by 180 o. A few aspects of power quality improvement using shunt active. Comparison of three phase shunt active power filter. Shunt active power filter based on srf theory and hysteresis. Since there is no feeder joining the source and the load, we. The performance of a conventional threephase shunt active power filter apf using synchronous detection method sdm has been. Shunt active power filter model based on 400volts 3 phase 3 wire system.
Shunt active power filter compensates current harmonics injecting equal and opposite harmonic compensating current. Shunt active power filter file exchange matlab central. Department of electrical and electronics engineering, k. Due to nonlinear loads harmonics mainly occurs in current signal, so in this paper a shunt active power filter is used. Shunt active power filter sapf is used to eliminate loadterminal current harmonics and leads to purely sinusoidal sourceend currents. The work presented in this thesis was carried out during. Simulation results of a shunt active power filter using pq. Design and simulation of a shunt active filter in application. Hysteresis control for shunt active power filter under. It is investigated that the pq theory based active filter manages to compensate the harmonics and reactive power of the power distribution network even under unbalanced and distorted supply voltages.
Matlabsimulink model based shunt active power filter using. Design and simulation of three phase shunt active power. A matrix converter produces significant harmonics and nonstandard frequency components into load. Basically shunt active power filter operates as a current source injecting the harmonic components generated by the load but phase shifted by 180. Shunt active power filter shapes of load, source and desired. Nonlinear loads like variable speed drives, uninterrupted power supplies and all kind of rectifiers draw a nonsinusoidal current from the network.
The hybrid filters combine passive and reactive filters reducing the effective cost. A shunt active power filter for 12 pulse converter using source current detection approach article pdf available in international journal of power electronics and drive systems 71. The performance of the shunt active power filter is investigated under different scenarios. Dynamic modeling and control of shunt active power filter. Design of shunt active power filter by using an advanced. Matlabsimulink model based shunt active power filter using fuzzy logic controller to minimize the harmonics swati pal, pallavi singh bondriya, yogesh pahariya. The configuration of a system with shunt active filter. This is a video demonstration of the simulink model of shunt apf. In general, the ratings of shunt active filters are based on the rms compensating current and the rms filter terminal voltage. Jul 15, 20 shunt active power filter model based on 400volts 3 phase 3 wire system. Shunt active power filter sapf is a power electronics converter that can inject current having same. This is to certify that the thesis entitled study of single phase shunt active power filter submitted by swayam saswat to the national institute of technology, rourkela for the award of degree of bachelor.
The operation principle of the shunt active filter figure 1. As a result, various hybrid filter topologies have been developed which combine the advantages of both the passive and the active filters 3. Modelling and simulation of three phase shunt active power. In order to compensate harmonic pollution caused by a nonlinear receiver, the parallel active filter consists of a dclink static power converter and an energy. Optimized combined system of shunt active power filters and capacitor banks 328.
Student of power electronics, tit bhopal electrical engineering, tit bhopal electrical engineering, lnct bhopal abstract the problem of quality electrical energy provided to. Moreover, the active power filter can also compensate the load power factor. Shunt active power filter the principle of the shunt filter is to produce harmonic currents equal in magnitude but opposite inphase to those harmonics that are present in the grid. In this method, the source currents ia,ib, ic are first detected and transformed into. Shunt active power filter for power quality improvement in distribution systems issn. Pdf a shunt active power filter for 12 pulse converter. This is to certify that the thesis entitled study of single phase shunt active power filter submitted by swayam saswat to the national institute of technology, rourkela for the award of degree of bachelor of technology in electrical engineering is a bona fide record of research carried out by his under my supervision. A multimodular shunt active power filter system and. The performance of three phase shunt active power filter using instantaneous power theory with. The shunt active power filters have been developed with a controlled strategy like. A simplified minimum dclink voltage control strategy for shunt. Hybrid filters combine an active filter and a passive filter. This is the basic principle of shunt active power filter to eliminate the current harmonics and to compensate the reactive power.
Abdalla mohamed abdeiaziz mohmaed abdeihaflz fahmy from egypt. Threephase threelevel npc shunt active power filter performances based on pwm and anns controllers for harmonic current compensation chennai salim1 and benchouia mohamed toufik2 1electrical engineering department, birine nuclear research center, algeria, 2laboratory l. Design consideration and experimental evaluation the paper presents an active power filter with high performance, achieved by the authors. Figure 1 illustrates a typical structure of the shunt apf connected to a main source. Photovoltaic integrated shunt active power filter with. Pv based threelevel npc shunt active power filter with. Shunt active power filter thesis pdf to the best of my knowledge, the matter embodied in the thesis has not been submitted to any. An investigation on combined operation of fivelevel shunt. Shunt active power filters shunt active power filter compensate current harmonics by injecting equalbutopposite harmonic compensating current.
Design and implementation of a shunt active power filter with reduced dc link voltage o. Power system harmonic compensation using shunt active power. A hysteresis current comparator is used to track the. Design and implementation of a shunt active power filter with. The active power filter apf gives the most promising solution to compensate for the adverse effects of harmonics and reactive power simultaneously by using suitable control algorithms. Dynamic modeling and control of shunt active power filter utkal ranjan muduli electrical engineering indian institute of technology gandhinagar gujarat, india382424 email. The system consists of multiple nonlinear loads, which are a combination of harmonic current sources and harmonic voltage sources, with significant unbalanced components. In this paper, the implementation of a shunt active power filter with a small series reactor for a threephase system is presented. Block diagram of photovoltaic shunt active power filter pv sapf.
To obtain these performances some contributions were brought, both in the. Control method of the threephase fourleg shunt active power. Pv based threelevel npc shunt active power filter with extended reference current generation method. Developing a voltagesource shunt active power filter for improving power quality. Active power filter, hybrid filter, passive filter, current harmonic.
Using shunt active power filters in place of the switched capacitors and lc filters. Nonlinear current control scheme of shunt active power filter. Threephase fourwire shunt active power filter for unbalanced nonlinear loads presented by eng. Shunt active filter the concept of active filter uses power electronic equipment to produce harmonic. The instantaneous pq theory could not be used for a series active filter and the constant power. Amongst them shunt active power filter is used to eliminate voltage and load current harmonics and for reactive power compensation.
Active power filters have been widely used for harmonic elimination. Citeseerx application of a shunt active power filter to. Design of shunt active power filter to eliminate the harmonic. The simple shunt active filter arrangement with nonlinear load is considered. Shunt active power filter for three phase four wire system. Shunt active power filter thesis proposal sangu ravindra, dr. This paper presents a direct currentspacevector control of an active power filter apf based on a threelevel neutralpointclamped npc voltagesource inverter. Paper 7 include multilevel inverter based shunt active power filter in three phase three wire and four wire system. Pdf the present paper describes a shunt active power filter with a control system based on the pq theory, and studies its performance through. Matlabsimulink model based shunt active power filter. Power system using shunt active filter with synchronous detection method a thesis that has been submitted in partial fulfillment of the. A shunt active power filter with instantaneous active and reactive power theory pq theory has been proposed for its performance and ability to compensate the harmonics and reactive power. Pdf control algorithms of shunt active power filter for. Harmonic mitigation using sevenlevel shunt active power.
Ssitan analysis of shunt active power filter based on instantaneous reactive power theory project guide batch members a. If the non active powers are compensated the voltage is then distorted, so this strategy could not satisfy the critical load. Lately also active series filters and hybrid systems combining active and passive filters have been considered. Pdf in this paper, the implementation of a threephase shunt active power filter is presented. The most widespread topology is the shunt active filter consisting of six active switches, e.
Optimized combined system of shunt active power filters. The active power filter apf is a popular electrical device to. In this case the shunt active power filter operates as a current source injecting the harmonic. Shunt active power filter for power quality improvement in. It can be shown from figure 1 that, in the source side, there will be only constant active power thus the phase currents in the will be sinusoid, balanced, and inphase with their corresponding voltages. Performance analysis of shunt active power filter with. Shunt active power filter thesis proposal i help to study.