Design and simulation of three phase shunt active power filter using srf theory rejil c1, anzarim2 and arun kumar r3 1. In this case the shunt active power filter operates as a current source injecting the harmonic. This technique eliminates harmonic distortion and maintains unity power factor. Pdf modeling of frequency domain control of shunt active. Performance analysis of 3 level shunt active power filter. Shunt active power filter shunt active power topology is most popular topology for current harmonics elimination due to. The shunt active power filter allows compensating harmonic. Shunt active filters saf operation principle of a shunt active filter. The simulation for proposed method is carried out using matlab simulink and results are validated. An experimental setup is established to validate the simulation. It uses clarke transformation to calculate value of p0,p and q, filters out constant part of p and thus finding the compensating part of p0,p and q.
Pdf along with increasing demand on improving power quality, the most popular technique that has been used is active power filter apf. Active power filter, hybrid filter, passive filter, current harmonic. This paper presents modeling and simulation of a shunt active power filter in frequency domain, using matlab and its tools simulink and power system blocket. 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. Shunt active power filter shunt active power topology is most popular topology for current harmonics elimination due to easy implementation and good performance. Certificate this is to certify that the thesis entitled, power quality improvement using passive shunt filter, tcr and tsc combination submitted by miss manjulata badi. Matlabsimulink model based shunt active power filter using. Matlabsimulink was the simulation tool, used in the study, development, and performance evaluation of the shunt active power filter controller. Shunt active power filter file exchange matlab central. Basic configuration of shunt active filter one of the most popular active filters used for compensating reactive power and harmonics is the shunt active filter that is shown in figure 1. The results of simulation comply with all the features described by the theory, justifying employment of. A simulink model to improve total harmonic distortion thd using shunt active power filter by, ranganath vallakati master of science in electrical engineering university of north dakota 2. Modeling and simulation of a pi controlled shunt active.
Instantaneous power theory is then applied to shunt active. The work presented in this thesis was carried out during my ph. Series active filters and filter based on instantaneous reactive power theory is carried out using matlabsimulink toolbox. Design and simulation of synchronous reference frame based. Simulation results of a shunt active power filter using p. However, in order to cancel the harmonic currents, to compensate reactive power and to improve the filtering performances. They constitute a harmonic pollution source of the network, which generate many disturbances, and disturb. Matlabsimulink shows that the proposed control algorithm is very flexible and effective under steady and dynamic load conditions when compared to iterative oca. It also compensate reactive power and balances load on three phaseif load is unbalanced.
Design and simulation of a shunt active filter in application for. In this manner a shunt active power filter can be used to eliminate current harmonics and reactive power compensation11. Aug 19, 2017 it solves the problem of harmonic current in power system. A single phase shunt active power filter was modeled in matlab simulink using hysteresis current controller and triangular current controller. Simulation of shunt active basically two types of active filter. Shunt active power filter model based on 400volts 3 phase 3 wire system. Shunt active power filter is simulated using matlab simulink under different load conditions and results are compared. Along with increasing demand on improving power quality, the most popular technique that has been used is active power filter apf. Oct 15, 2017 it also compensate reactive power and balances load on three phaseif load is unbalanced. Pdf operation of shunt active power filter under unbalanced and. Three phase shunt active power filter using pq theory. Modeling and simulation of a pi controlled shunt active power. Design and development of three phase shunt active filter. The operation principle of the shunt active filter figure 1.
Based on your location, we recommend that you select. Consequently, only active power is supplied by the source thus power factor approaches unity. Pdf matlabsimulink model based shunt active power filter. Shunt active filters, harmonic analysis, nonlinear control, instantaneous power theory. Performance analysis of shunt active power filter with. The simulation for proposed method is carried out using matlabsimulink and results are validated. This schema representing a shunt active power filter in the synchronous reference frame, im focusing on the area in the red box. This filter is used to compensate harmonic distortion in threephase fourwire systems. Shunt active filter has the capability for compensating load harmonic currents and reactive power requirement of the nonlinear loads in power network. This paper gives detail performance analysis of sapf under two current control strategy namely, instantaneous active. The simulink of shunt active power filter with sinusoidal pulse width modulation is shown in fig. Modeling of frequency domain control of shunt active power filter using matlab simulink and power system blocksetfrequency domain control, harmonics and reactive.
To prove the flexibility and effectiveness of the proposed scheme. Design and implementation of a shunt active power filter with. Shunt active power filter simulink simulation and dspbased hardware realization che yanbo zhou fudan k. Three phase shunt active power filter using pq theory file. Issn 22503153 matlabsimulink model based shunt active power. I want to learn how to build my own shunt active power filter in the synchronous reference frame from scratch, i understood pretty much the method behind it, but i am stack within simulink, i followed the steps of the algorithm one by.
This paper present the simulink model of shunt active filters for improvement of. Nonlinear loads like variable speed drives, uninterrupted power supplies and all kind of rectifiers draw a nonsinusoidal current from the network. Dynamic modeling and control of shunt active power filter utkal ranjan muduli. This paper has analyzed a shunt hybrid active power filter consisting of a small rated voltage source active power filter and a series 7 th tuned lc passive filter. Figure 1 illustrates a typical structure of the shunt apf connected to a main source. Shunt active power filter for power quality improvement in. It is controlled to draw or supply a compensating current i c from or to the utility, so that it cancels current harmonics on the ac side. To obtain result for this paper, the matlab simulink was used as a simulation.
Study and simulation of instantaneous power theory is also presented. The shunt active power filter is simulated in matlabi simulink. A single phase shunt active power filter was modeled in matlabsimulink using hysteresis current controller and triangular current controller. Again, the power topology of the active filter is basically the same as that of the active rectifier i. The problem of quality electrical energy provided to the users has arisen. Experiences with shunt active filter to demonstrate the operation of shunt active filter measurement was made at a dcdrive without and with shunt active filter figure 9.
Feb, 2014 the generalized diagram of shunt active filter is shown in figure 4. It solves the problem of harmonic current in power system. To validate and highlight the performance of shunt active filters a matlab simulink model was developed. Control strategies of shunt active power filter sciencedirect. Threephase four wire shunt active power filter based on. The simulation results have been obtained by using matlab simulink. Threephase threelevel npc shunt active power filter. Pdf matlab simulation of single phase shunt active power. Study of shunt active power filter for pv generation. Initial position of d axis is chosen in such a way that active part of current is given by d axis. Simulation results of a shunt active power filter with. Design of shunt active power filter to eliminate the. Design and simulation of three phase shunt active power. The active power filters have gained much more attention because of its excellent performance to mitigate the harmonic and reactive power issues.
Modelling and analysis of controller for threephase shunt active. As can be seen the curve form of the supply current is almost fundamental current only when. Keywords wind power generation, spwm, shunt active filter, harmonic, power quality 1. Hysteresis control for shunt active power filter under. The simulations were carried out for different loads, of linear and nonlinear types. It is most widely used to eliminate the current harmonics, reactive power compensation, and balancing unbalanced currents 5, 6, 17. Besides, the sapf control systems hardware is realized based on dsp and mcu. This paper presents a shunt hybrid active power filter application mainly. This paper will discuss and analyze the simulation result for a threephase shunt active power filter using matlabsimulink program.
This paper concentrates on the design and application of threephase shunt active power filter sapf by using pq theory to mitigate the harmonics which are created by nonlinear loads. Connection of the active filter to 3phase 4wire supply system. Unlike passive filters, the impedance of the system rarely affects in the filtering features, so they avoid one of the problems presented by. The simple shunt active filter arrangement with nonlinear load is considered.
A fully functional simulink model of shunt active power filter has been designed based on instantaneous power theory or pq theory. This is due to the increasing presence in network of nonlinear loads. Simulation results are presented to demonstrate performance of single phase shunt active power filter during presence of nonlinear load. Introduction the large scale use of power electronics equipment has led to increase in harmonics in. Matlabsimulink model based shunt active power filter. Harmonics, thd, active filters, shunt active filter. However, the required dc link voltage is much less. Reference generation and control method different reference current generation schemes are been implemented as stated in 6. The control technique has been tested under different load conditions using matlabsimulink simulations and validated with a 10 kva380 v experimental.
Jul 15, 20 shunt active power filter model based on 400volts 3 phase 3 wire system. Threephase fourwire shunt active power filter sapf. Shunt active power filter, synchronous reference frame algorithm, hysteresis current control, compensation current 1. Proposed power control strategy simulink model of the apf the overall system model containing the power source, the apf and the nonlinear loads balanced and unbalanced is shown in figure 3. Converter vsc based shunt active power filter for harmonic compensation. A simulation is performed in matlabsimulink environment which to verify the feasibility of the proposed. Shunt active power filter based on srf theory and hysteresis. Shunt active power filter simulink simulation and dsp. Key termsshunt active power filter sapf, unity power factor upf, total harmonic distortion thd, pi controller, fuzzy controller.
Abstract active power filters are widely used for the reduction of harmonics in the power system caused by nonlinear loads. Shunt active filter has the capability for compensating load harmonic currents and reactive power requirement of the nonlinear loads in. Dynamic modeling and control of shunt active power filter. Lately also active series filters and hybrid systems combining active and passive filters have been considered. Series active filters and filter based on instantaneous reactive power theory is carried out using matlab simulink toolbox. Shows a system configuration of a singlephase or threephase shunt active filter is mainly used for compensate various types of current related problems. One of the equipment which is used to eliminate such harmonics is active power filter apf that is employed in many power networks and industries to suppress the current harmonics generated by nonlinear loads like rectifiers. To validate and highlight the performance of shunt active filters a matlabsimulink model was developed. Shunt active filter an overview sciencedirect topics. It measures load current and then transforms to dq0 coordinate system. The reference current generation of shunt active filter is shown in fig. Design and simulation of a shunt active filter in application.
Balanced system nonlinear load figure8shows the distorted threephase source current is and nonlinear load current il waveforms under a balanced system and with a nonlinear load connected. Active power filter for compensation of reactive power and harmonics in 3phase 4wire. It may lead equipment connected to it to overheat and sometimes cause damage. Simulink model of the proposed shunt active power filter sapf. Shunt active power filters figure 5 shows the basic compensation principle of the shunt active power filter 1, 2, 3.
The most widespread topology is the shunt active filter consisting of six active switches, e. May 08, 2018 this is a video demonstration of the simulink model of shunt apf. The block diagram of shunt active power filter shown in fig 2. The model and numerical simulation in transient and steady states conditions are developed and performed using matlabsimulink and simpowersystem toolbox. Linear loads sinusoidal current with sinusoidal voltage 2. Harmonic reduction in wind power generating system using. Pdf simulation a shunt active power filter using matlab.
It is controlled to draw or supply a compensating current ic from or to the utility, so that it cancels current harmonics on the ac side. Shunt active filters, harmonic analysis, nonlinear control, instantaneous power. Shunt active power filter simulink simulation and dspbased. In this way, the power distribution system sees the non linear load and the active power filter as an ideal resistor. This paper proposes fuzzy and hysteresis controllers based three phase shunt active power filter for current harmonic compensation to improve the performance of 3. Pdf simulation a shunt active power filter using matlabsimulink. 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. Simulation results of a shunt active power filter using pq. The shunt active filter is also consists of shunt converter with dc capacitor and shunt inductor. Choose a web site to get translated content where available and see local events and offers. Matlabsimulink model based shunt active power filter using fuzzy logic controller to minimize the harmonics. Several harmonic suppression techniques have been widely proposed and applied to minimize harmonic effects. This paper focuses on a fourwire shunt active power filter apf control scheme proposed to improve the performance of the apf.
Control of shunt active power filter for improvement of power quality. In this paper, the implementation of a shunt active power filter with a small series reactor for a threephase system is. This paper presents modeling and simulation of a shunt active power filter in frequency domain, using matlab and its tools simulink and power system. This paper gives detail performance analysis of sapf under two current control strategy namely, instantaneous active and reactive power theory pq and synchronous frame reference theory dq and their comparative analysis to justify one of the method better over other. The series lc filter used in the proposed system results in an increase on the current flowing through the active power filter.
Study of shunt active power filter for pv generation system using matlabsimulink sujata. A model of a threephase threewire shunt active power filter based on synchronous reference frame control strategy has been designed and simulated on matlabsimulink. Cerning power systems has created conditions for a more extended use of active. This is a video demonstration of the simulink model of shunt apf. Simulation results indicate that the proposed active power filter can restrain harmonics of electrical source current effectively and also demonstrates the usability of simulation. This paper presents the performance of the threelevel npc shunt active filter based on pwm and anns controllers. Simulation a shunt active power filter using matlab simulink.