Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom

This paper further develops a Model Predictive Control (MPC) scheme which is able to exploit the large number of redundant switching states available in a multi-level H-bridge StatCom (H-StatCom). The new sections of the scheme provide optimised methods to trade off the harmonic performance with con...

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Main Authors: Townsend, Christopher D., Summers, Terence J., Vodden, John Alan, Watson, Alan James, Betz, Robert E., Clare, Jon C.
Format: Article
Published: IEEE 2013
Subjects:
Online Access:https://eprints.nottingham.ac.uk/43950/
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author Townsend, Christopher D.
Summers, Terence J.
Vodden, John Alan
Watson, Alan James
Betz, Robert E.
Clare, Jon C.
author_facet Townsend, Christopher D.
Summers, Terence J.
Vodden, John Alan
Watson, Alan James
Betz, Robert E.
Clare, Jon C.
author_sort Townsend, Christopher D.
building Nottingham Research Data Repository
collection Online Access
description This paper further develops a Model Predictive Control (MPC) scheme which is able to exploit the large number of redundant switching states available in a multi-level H-bridge StatCom (H-StatCom). The new sections of the scheme provide optimised methods to trade off the harmonic performance with converter switching losses and capacitor voltage ripple. Varying the pulse placement within the modulation scheme and modifying the heuristic model of the voltage balancing characteristics allows the MPC scheme to achieve superior performance to that of the industry standard phase shifted carrier modulation technique. The effects of capacitor voltage ripple on the lifetime of the capacitors is also investigated. It is shown that the MPC scheme can reduce capacitor voltage ripple and increase capacitor lifetime. Simulation and experimental results are presented that confirm the correct operation of the control and modulation strategies.
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spelling nottingham-439502020-05-04T16:37:43Z https://eprints.nottingham.ac.uk/43950/ Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom Townsend, Christopher D. Summers, Terence J. Vodden, John Alan Watson, Alan James Betz, Robert E. Clare, Jon C. This paper further develops a Model Predictive Control (MPC) scheme which is able to exploit the large number of redundant switching states available in a multi-level H-bridge StatCom (H-StatCom). The new sections of the scheme provide optimised methods to trade off the harmonic performance with converter switching losses and capacitor voltage ripple. Varying the pulse placement within the modulation scheme and modifying the heuristic model of the voltage balancing characteristics allows the MPC scheme to achieve superior performance to that of the industry standard phase shifted carrier modulation technique. The effects of capacitor voltage ripple on the lifetime of the capacitors is also investigated. It is shown that the MPC scheme can reduce capacitor voltage ripple and increase capacitor lifetime. Simulation and experimental results are presented that confirm the correct operation of the control and modulation strategies. IEEE 2013-07-31 Article PeerReviewed Townsend, Christopher D., Summers, Terence J., Vodden, John Alan, Watson, Alan James, Betz, Robert E. and Clare, Jon C. (2013) Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom. IEEE Transactions on Power Electronics, 28 (7). pp. 3077-3087. ISSN 0885-8993 Multi-level converters StatCom voltage bal¬ancing modulation strategy control strategy http://ieeexplore.ieee.org/document/6307885/ doi:10.1109/TPEL.2012.2219593 doi:10.1109/TPEL.2012.2219593
spellingShingle Multi-level converters
StatCom
voltage bal¬ancing
modulation strategy
control strategy
Townsend, Christopher D.
Summers, Terence J.
Vodden, John Alan
Watson, Alan James
Betz, Robert E.
Clare, Jon C.
Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom
title Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom
title_full Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom
title_fullStr Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom
title_full_unstemmed Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom
title_short Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom
title_sort optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded h-bridge multi-level statcom
topic Multi-level converters
StatCom
voltage bal¬ancing
modulation strategy
control strategy
url https://eprints.nottingham.ac.uk/43950/
https://eprints.nottingham.ac.uk/43950/
https://eprints.nottingham.ac.uk/43950/