The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON SYSTEMS AND CONTROL
Transactions ID Number: 32-706
Full Name: E.Latha Mercy
Position: Ph.D. Candidate
Age: ON
Sex: Female
Address: Selection Grade Lecturer/Electrical, Government College of Technology, Coimbatore-641 013, Tamilnadu.
Country: INDIA
Tel: 91-0422-2403077
Tel prefix: nil
Fax: nil
E-mail address: lathamercy@rediffmail.com
Other E-mails: nil
Title of the Paper: A NOVEL HARMONIC SUPPRESSION SCHEME USING SRF AND SIP CONTROL STRATEGIES
Authors as they appear in the Paper: E.Latha Mercy, S.Arumugam, S.Karthikeyan
Email addresses of all the authors: lathamercy@rediffmail.com , s_arumugam@vsnl.net, contactskarthi@yahoo.co.in,
Number of paper pages: 12
Abstract: Three-phase four-wire distribution systems have been widely used in commercial and industrial installations. The neutral conductor carries the zero sequence current due to the unbalanced loading among the phase conductors. However, as electronic loads increases, their rectifier front-ends reduce significant harmonic current. The triplen harmonic current produced by these loads tends to accumulate in the neutral conductor due to its zero sequence nature, thus resulting in overloading of the neutral conductor and the distribution transformer. This paper proposes a new harmonic suppression scheme for the neutral conductors of three-phase four-wire distribution systems. In the proposed scheme, an active filter is connected in series with the neutral conductor and different schemes for phase conductors are also provided. The active filter operation will not affect the fundamental component due to the unbalanced loading, which the neutral conductor is sized for. The pro!
posed scheme can eliminate current harmonics overloading on both the neutral conductor and the distribution transformer with only one active filter installation. The SIP control strategy based on Source Instantaneous Power for the shunt active filters is employed. Calculation of source instantaneous power is needed to determine instantaneous power component, which needs source currents and phase information so that the number of sensors can be reduced. The simulation results show that the output has low Total Harmonic Distortion (THD) value.
Keywords: Triplen Harmonic, Active filter, SRF, SIP, THD.
EXTENSION of the file: .doc
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