Combined source-effect of photovoltaic generator and bi-directional dc–dc battery charger on inverter control dynamics

Roosa Sallinen; Tuomas Messo

doi:10.1049/joe.2018.9332

Combined source-effect of photovoltaic generator and bi-directional dc–dc battery charger on inverter control dynamics

Roosa Sallinen, Tuomas Messo

Electrical Engineering

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Abstract

This study presents a method to solve the dynamic model of a grid-connected photovoltaic (PV) inverter with battery energy storage. A three-phase grid-connected solar-battery system is studied using small-signal state-space modelling in the synchronously rotating dq-reference frame. The combined effect of a PV generator and a bi-directional dc–dc battery charger (BC) on the inverter dynamic behaviour is analysed. It is shown that the characteristic right-half-plane pole in the PV inverter's dc-link voltage control dynamics shifts to a lower frequency when the BC is connected, which improves the stability of the system and allows a lower bandwidth for the dc-link voltage control.

Original language	English
Pages (from-to)	5197-5201
Number of pages	5
Journal	The Journal of Engineering
Volume	2019
Issue number	18
DOIs	https://doi.org/10.1049/joe.2018.9332
Publication status	Published - 19 Aug 2019
Publication type	A1 Journal article-refereed
Event	International Conference on Renewable Power Generation - Duration: 1 Jan 1900 → …

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10.1049/joe.2018.9332Licence: CC BY

JOE.2018.9332Final published version, 1.93 MBLicence: CC BY

http://urn.fi/URN:NBN:fi:tuni-202001241528Licence: CC BY

Cite this

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title = "Combined source-effect of photovoltaic generator and bi-directional dc–dc battery charger on inverter control dynamics",

abstract = "This study presents a method to solve the dynamic model of a grid-connected photovoltaic (PV) inverter with battery energy storage. A three-phase grid-connected solar-battery system is studied using small-signal state-space modelling in the synchronously rotating dq-reference frame. The combined effect of a PV generator and a bi-directional dc–dc battery charger (BC) on the inverter dynamic behaviour is analysed. It is shown that the characteristic right-half-plane pole in the PV inverter's dc-link voltage control dynamics shifts to a lower frequency when the BC is connected, which improves the stability of the system and allows a lower bandwidth for the dc-link voltage control.",

author = "Roosa Sallinen and Tuomas Messo",

note = "An open-access republication of the conference article: The Combined Source-Effect of Photovoltaic Generator and Bi-Directional DC-DC Battery Charger on Inverter Control Dynamics, Sallinen, R. & Messo, T., 2018, The 7th International Conference on Renewable Power Generation. Copenhagen, Denmark, 6 p.; International Conference on Renewable Power Generation ; Conference date: 01-01-1900",

year = "2019",

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doi = "10.1049/joe.2018.9332",

language = "English",

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AU - Messo, Tuomas

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PY - 2019/8/19

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N2 - This study presents a method to solve the dynamic model of a grid-connected photovoltaic (PV) inverter with battery energy storage. A three-phase grid-connected solar-battery system is studied using small-signal state-space modelling in the synchronously rotating dq-reference frame. The combined effect of a PV generator and a bi-directional dc–dc battery charger (BC) on the inverter dynamic behaviour is analysed. It is shown that the characteristic right-half-plane pole in the PV inverter's dc-link voltage control dynamics shifts to a lower frequency when the BC is connected, which improves the stability of the system and allows a lower bandwidth for the dc-link voltage control.

AB - This study presents a method to solve the dynamic model of a grid-connected photovoltaic (PV) inverter with battery energy storage. A three-phase grid-connected solar-battery system is studied using small-signal state-space modelling in the synchronously rotating dq-reference frame. The combined effect of a PV generator and a bi-directional dc–dc battery charger (BC) on the inverter dynamic behaviour is analysed. It is shown that the characteristic right-half-plane pole in the PV inverter's dc-link voltage control dynamics shifts to a lower frequency when the BC is connected, which improves the stability of the system and allows a lower bandwidth for the dc-link voltage control.

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DO - 10.1049/joe.2018.9332

M3 - Article

SN - 2051-3305

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JO - The Journal of Engineering

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Y2 - 1 January 1900

ER -

Combined source-effect of photovoltaic generator and bi-directional dc–dc battery charger on inverter control dynamics

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