Harmonic-by-harmonic time delay compensation Method for PHIL simulation of low impedance power systems

Guillo Sansano, E. and Roscoe, A.J. and Burt, G.M.; (2015) Harmonic-by-harmonic time delay compensation Method for PHIL simulation of low impedance power systems. In: Proceedings of the 2015 International Symposium on Smart Electric Distribution Systems and Technologies (EDST). IEEE, AUT, pp. 560-565. ISBN 978-1-4799-7736-9 (https://doi.org/10.1109/SEDST.2015.7315271)

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Abstract

In PHIL simulations different time delays are introduced. Although it can be reduced, there is always some time delay. As a consequence, when the device under test is part of a low impedance power system such as: microgrids, marine or aero power systems, the simulation process becomes challenging due to the poor accuracy of the results achieved by the introduction of the time delay. Therefore, in order to accurately compensate for the inherent time delay introduced in Power Hardware in the Loop (PHIL) simulations, a method based on phase-shifting the reference voltage signal harmonic-by-harmonic and phase-by-phase is proposed. In this manner the time delay compensation will not affect to the system topology and therefore the dynamic behaviour of the original system will stay as it originally was in terms of power angles and V-I phase relationships for all the harmonics processed. In this paper, an experiment where the reference voltage is altered with 5th and 7th harmonics shows that the accuracy of PHIL simulations after the application of this compensation method is greatly improved compared with traditional methods. As a result, low impedance power systems are now able to experience an accurate PHIL simulation.

ORCID iDs

Guillo Sansano, E. ORCID logoORCID: https://orcid.org/0000-0002-2773-4157, Roscoe, A.J. ORCID logoORCID: https://orcid.org/0000-0003-1108-4265 and Burt, G.M. ORCID logoORCID: https://orcid.org/0000-0002-0315-5919;
  • Item type:Book Section
    ID code:54971
    Dates:
    Date
    Event
    September 2015
    Published
    25 May 2015
    Accepted
    Notes:(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:11 Dec 2015 04:28
    Last modified:11 Nov 2024 15:02
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/54971
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