Control of cascaded DC-DC converter-based hybrid battery energy storage systems - Part II: Lyapunov approach

A cascaded dc-dc boost converter is one of the ways to integrate hybrid battery types within a grid-tie inverter. Due to the presence of different battery parameters within the system such as, state-of-charge and/or capacity, a module-based distributed power sharing strategy may be used. To implemen...

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Main Authors:	Nilanjan Mukherjee, Dani Strickland
Format:	Default Article
Published:	2015
Subjects:	Mechanical engineering not elsewhere classified Cascaded dc-dc converters Hybrid battery energy storage systems Lyapunov control Stability Mechanical Engineering not elsewhere classified
Online Access:	https://hdl.handle.net/2134/24979
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id	rr-article-9560960
record_format	Figshare
spelling	rr-article-95609602015-01-01T00:00:00Z Control of cascaded DC-DC converter-based hybrid battery energy storage systems - Part II: Lyapunov approach Nilanjan Mukherjee (7211255) Dani Strickland (3831724) Mechanical engineering not elsewhere classified Cascaded dc-dc converters Hybrid battery energy storage systems Lyapunov control Stability Mechanical Engineering not elsewhere classified A cascaded dc-dc boost converter is one of the ways to integrate hybrid battery types within a grid-tie inverter. Due to the presence of different battery parameters within the system such as, state-of-charge and/or capacity, a module-based distributed power sharing strategy may be used. To implement this sharing strategy, the desired control reference for each module voltage/current control loop needs to be dynamically varied according to these battery parameters. This can cause stability problem within the cascaded converters due to relative battery parameter-variations when using the conventional proportional-integral (PI) control approach. This paper proposes a new control method based on Lyapunov functions to eliminate this issue. The proposed solution provides a global asymptotic stability at a module level avoiding any instability issue due to parameter variations. A detailed analysis and design of the nonlinear control structure is presented under the distributed sharing control. At last thorough experimental investigations are shown to prove the effectiveness of the proposed control under grid-tie conditions. 2015-01-01T00:00:00Z Text Journal contribution 2134/24979 https://figshare.com/articles/journal_contribution/Control_of_cascaded_DC-DC_converter-based_hybrid_battery_energy_storage_systems_-_Part_II_Lyapunov_approach/9560960 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	Mechanical engineering not elsewhere classified Cascaded dc-dc converters Hybrid battery energy storage systems Lyapunov control Stability Mechanical Engineering not elsewhere classified
spellingShingle	Mechanical engineering not elsewhere classified Cascaded dc-dc converters Hybrid battery energy storage systems Lyapunov control Stability Mechanical Engineering not elsewhere classified Nilanjan Mukherjee Dani Strickland Control of cascaded DC-DC converter-based hybrid battery energy storage systems - Part II: Lyapunov approach
description	A cascaded dc-dc boost converter is one of the ways to integrate hybrid battery types within a grid-tie inverter. Due to the presence of different battery parameters within the system such as, state-of-charge and/or capacity, a module-based distributed power sharing strategy may be used. To implement this sharing strategy, the desired control reference for each module voltage/current control loop needs to be dynamically varied according to these battery parameters. This can cause stability problem within the cascaded converters due to relative battery parameter-variations when using the conventional proportional-integral (PI) control approach. This paper proposes a new control method based on Lyapunov functions to eliminate this issue. The proposed solution provides a global asymptotic stability at a module level avoiding any instability issue due to parameter variations. A detailed analysis and design of the nonlinear control structure is presented under the distributed sharing control. At last thorough experimental investigations are shown to prove the effectiveness of the proposed control under grid-tie conditions.
format	Default Article
author	Nilanjan Mukherjee Dani Strickland
author_facet	Nilanjan Mukherjee Dani Strickland
author_sort	Nilanjan Mukherjee (7211255)
title	Control of cascaded DC-DC converter-based hybrid battery energy storage systems - Part II: Lyapunov approach
title_short	Control of cascaded DC-DC converter-based hybrid battery energy storage systems - Part II: Lyapunov approach
title_full	Control of cascaded DC-DC converter-based hybrid battery energy storage systems - Part II: Lyapunov approach
title_fullStr	Control of cascaded DC-DC converter-based hybrid battery energy storage systems - Part II: Lyapunov approach
title_full_unstemmed	Control of cascaded DC-DC converter-based hybrid battery energy storage systems - Part II: Lyapunov approach
title_sort	control of cascaded dc-dc converter-based hybrid battery energy storage systems - part ii: lyapunov approach
publishDate	2015
url	https://hdl.handle.net/2134/24979
_version_	1798280353577697280

Control of cascaded DC-DC converter-based hybrid battery energy storage systems - Part II: Lyapunov approach

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