A study of a three-phase four-wire shunt active power filter for harmonics mitigation

Luis Fernando Ayala Maciel, José Luis Monroy Morales, David Campos-Gaona, Juan Gabriel Marroquín Pimentel

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

The electrical power quality in three phase four wire systems, feeding nonlinear loads, can be improved by using active power filters (APF) in order to mitigate the total harmonic distortion. Harmonic currents and voltages produced by single phase, non-linear loads, which are connected phase to neutral in a three phase, four wire system, are third order, zero sequence harmonics. These third order, zero sequence harmonic currents, unlike positive and negative sequence harmonic currents, do not cancel but add up arithmetically at the neutral bus, and can be greater than the current of each of the phases. The danger that arises is an excessive overheating of the neutral, since there is no circuit breaker in this conductor, which limits the current, as occurs with the phase conductors. An excessive current in the neutral can also cause an excessive voltage difference between the neutral conductor and ground. This paper presents the theory and design of the control system used to mitigate harmonic problems in three-phase four-wire systems based on a split capacitor topology. Due to split capacitor topology has midpoint between the capacitors, this point can be used for the neutral return path, and thus, the entire neutral current flows through the DC bus capacitors reducing the number of switching devices. Simulation results are shown to validate the proposed procedures.
LanguageEnglish
Title of host publication2018 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages1-6
Number of pages6
ISBN (Electronic)9781538659359
DOIs
Publication statusPublished - 7 Mar 2019

Fingerprint

Capacitors
Wire
Topology
Electric circuit breakers
Harmonic distortion
Electric potential
Power quality
Control systems

Keywords

  • active power filter
  • three phase four wire systems
  • harmonic compensation

Cite this

Maciel, L. F. A., Monroy Morales, J. L., Campos-Gaona, D., & Marroquín Pimentel, J. G. (2019). A study of a three-phase four-wire shunt active power filter for harmonics mitigation. In 2018 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) (pp. 1-6). Piscataway, NJ: IEEE. https://doi.org/10.1109/ROPEC.2018.8661416
Maciel, Luis Fernando Ayala ; Monroy Morales, José Luis ; Campos-Gaona, David ; Marroquín Pimentel, Juan Gabriel. / A study of a three-phase four-wire shunt active power filter for harmonics mitigation. 2018 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC). Piscataway, NJ : IEEE, 2019. pp. 1-6
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Maciel, LFA, Monroy Morales, JL, Campos-Gaona, D & Marroquín Pimentel, JG 2019, A study of a three-phase four-wire shunt active power filter for harmonics mitigation. in 2018 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC). IEEE, Piscataway, NJ, pp. 1-6. https://doi.org/10.1109/ROPEC.2018.8661416

A study of a three-phase four-wire shunt active power filter for harmonics mitigation. / Maciel, Luis Fernando Ayala; Monroy Morales, José Luis; Campos-Gaona, David; Marroquín Pimentel, Juan Gabriel.

2018 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC). Piscataway, NJ : IEEE, 2019. p. 1-6.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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N1 - © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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N2 - The electrical power quality in three phase four wire systems, feeding nonlinear loads, can be improved by using active power filters (APF) in order to mitigate the total harmonic distortion. Harmonic currents and voltages produced by single phase, non-linear loads, which are connected phase to neutral in a three phase, four wire system, are third order, zero sequence harmonics. These third order, zero sequence harmonic currents, unlike positive and negative sequence harmonic currents, do not cancel but add up arithmetically at the neutral bus, and can be greater than the current of each of the phases. The danger that arises is an excessive overheating of the neutral, since there is no circuit breaker in this conductor, which limits the current, as occurs with the phase conductors. An excessive current in the neutral can also cause an excessive voltage difference between the neutral conductor and ground. This paper presents the theory and design of the control system used to mitigate harmonic problems in three-phase four-wire systems based on a split capacitor topology. Due to split capacitor topology has midpoint between the capacitors, this point can be used for the neutral return path, and thus, the entire neutral current flows through the DC bus capacitors reducing the number of switching devices. Simulation results are shown to validate the proposed procedures.

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Maciel LFA, Monroy Morales JL, Campos-Gaona D, Marroquín Pimentel JG. A study of a three-phase four-wire shunt active power filter for harmonics mitigation. In 2018 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC). Piscataway, NJ: IEEE. 2019. p. 1-6 https://doi.org/10.1109/ROPEC.2018.8661416