The transient and steady state performance of a shunt active filter using measured site data

Round, S.D.; Laird, Hamish; Duke, R.; Gardiner, Alister

doi:10.1109/ichqp.1998.759919

Cited by 9 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These voltages and currents are transformed into orthogonal frame which can be expressed as positive, negative, and zero sequences by (6) …”

Section: Shunt Active Filtermentioning

confidence: 99%

“…The operation principle of an active filter is based on PWM or SVM three-phase inverter to generate nonsinusoidal currents to meet harmonic current requirement of the nonlinear load. Many various configurations, control strategies, and applications of active filters are offered in the literature [5][6][7]. The SAF performs the filtering action by injecting harmonic components which cancel those from the load, thereby the line current becomes free of harmonics [8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modified PWM Technique for Harmonic Reduction

Hoseinpour

Ghazi

2012

ISRN Electronics

View full text Add to dashboard Cite

This paper presents a Shunt Active Filter (SAF) based on the Variable Index Pulse Width Modulation approach. In the proposed method of Pulse Width Modulation (PWM), the triangular wave is derived by integration of the reference signals. This method introduces two basic advantages; the first one is that the triangular signal contains the information of the signal to be obtained in output and the second advantage is that its amplitude is varied in proportion to the amplitude of the reference signal. Therefore, in this PWM method, the modulation index is varied according to the variation of the reference signal, so it is termed as Variable Index Pulse Width Modulation. In order to demonstrate the validity of the proposed method, the obtained simulation results are compared with results of the Space Vector Modulation (SVM) approach. Furthermore, it is shown that in the case of nonsinusoidal voltages, the SAF with the proposed control strategy can provide the filtering action. This method is quite easy to implement and requires lower circuitry. The results show that the proposed method can satisfy the IEEE-519 standard regarding the reduction of harmonics.

show abstract

“…These voltages and currents are transformed into orthogonal frame which can be expressed as positive, negative, and zero sequences by (6) …”

Section: Shunt Active Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modified PWM Technique for Harmonic Reduction

Hoseinpour

Ghazi

2012

ISRN Electronics

View full text Add to dashboard Cite

show abstract

“…In [7] and [8], different aspects of transient response of some active filters are studied to insure instantaneous ability of such theories. Even, results of some simulations have been described in [9], where different methods for instantaneous compensations are simulated and discussed to insure an adequate compensation of harmonics when using these theories.…”

Section: Instantaneous Power Theorymentioning

confidence: 99%

Real-time laboratory implementation results of an active filter

Javadi

Olivier

Sirois

et al. 2010

2010 9th International Conference on Environment and Electrical Engineering

View full text Add to dashboard Cite

Proliferation of power electronics converters and electronic equipments has dramatically increased electric pollution in electrical distribution power systems. One solution to this problem could be the use of active filters that are capable of injecting distorted currents in order to cancel harmonics coming from non-linear loads for instance, or from any other equipment. Consequently, many theories have been developed to control active filters and then perform compensation of unwanted harmonics. In this paper, an overview of the instantaneous compensation theory is presented. This time domain approach was proposed by Akagi [1] under the name "p-q theory" or "instantaneous power theory". It is the most widely spread theory for two or three phases and three or four wire systems. Then an appropriate control model for active filters based on the literature review is presented. That model is interfaced with real physical system owing to Opal-RT Software that definitely allows real-time control. Laboratory implementations are realized by using RT-Lab Simulator, and by interfacing it with a three phase 120/240 V system and a three phase non-linear load. The final system constitutes a Hardware in the loop (HIL) application. Real-time tests on an Opal-RT simulator, are shown and commented in the paper.

show abstract

“…Fig. 12 shows that the magnitude reached by the phase to ground voltage in DS3 during transient was = 2 p.u.. Then, this requirement should be taken into account when designing the active filter [4].…”

Section: B Transients Statementioning

confidence: 99%