Active power control in PV systems based on a quadratic curve fitting algorithm for the MPP estimation
Active power control in PV systems based on a quadratic curve fitting algorithm for the MPP estimation
In this paper, an active power control strategy is presented in order for a PV plant to operate at a specified suboptimal output power setpoint and maintain power reserves, expressed as a fraction of the maximum available power. Given that the latter is not known a priori, a quadratic curve fitting algorithm is applied to recent past measurements in order to estimate the P-V curve and calculate the operating voltage to achieve the desired power reserve levels. The proposed method offers sufficient accuracy, increased robustness and computational efficiency, combined with excellent dynamic response at irradiance variations and reserve command changes. The effectiveness of the control strategy and the P-V curve estimation method is validated by simulations in MATLAB/Simulink.Keywords: Curve Fitting, Linear Least Squares, MPP Estimation, Photovoltaic System, Quadratic, Reserves.
3036-3040
Batzelis, Efstratios
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Nanou, Sotirios
c8d9993d-2f91-4c8d-8033-2560ed2947a2
Papathanassiou, Stavros
49cbcb43-649a-47c2-b294-9bc4d88898b9
September 2014
Batzelis, Efstratios
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Nanou, Sotirios
c8d9993d-2f91-4c8d-8033-2560ed2947a2
Papathanassiou, Stavros
49cbcb43-649a-47c2-b294-9bc4d88898b9
Batzelis, Efstratios, Nanou, Sotirios and Papathanassiou, Stavros
(2014)
Active power control in PV systems based on a quadratic curve fitting algorithm for the MPP estimation.
Bokhoven, T.P., Jăger-Waldau, A. and Helm, P.
(eds.)
In 29th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2014).
vol. 1,
Curran Associates, Inc.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this paper, an active power control strategy is presented in order for a PV plant to operate at a specified suboptimal output power setpoint and maintain power reserves, expressed as a fraction of the maximum available power. Given that the latter is not known a priori, a quadratic curve fitting algorithm is applied to recent past measurements in order to estimate the P-V curve and calculate the operating voltage to achieve the desired power reserve levels. The proposed method offers sufficient accuracy, increased robustness and computational efficiency, combined with excellent dynamic response at irradiance variations and reserve command changes. The effectiveness of the control strategy and the P-V curve estimation method is validated by simulations in MATLAB/Simulink.Keywords: Curve Fitting, Linear Least Squares, MPP Estimation, Photovoltaic System, Quadratic, Reserves.
Text
Batzelis - Active Power Control in PV Systems Based on a
- Accepted Manuscript
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Published date: September 2014
Venue - Dates:
29th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2014), , Amsterdam, Netherlands, 2014-09-22 - 2014-09-26
Identifiers
Local EPrints ID: 480636
URI: http://eprints.soton.ac.uk/id/eprint/480636
PURE UUID: f5f940e9-b764-4b11-bdeb-a3e7f79e79d2
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Date deposited: 08 Aug 2023 16:36
Last modified: 17 Mar 2024 04:06
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Contributors
Author:
Efstratios Batzelis
Author:
Sotirios Nanou
Author:
Stavros Papathanassiou
Editor:
T.P. Bokhoven
Editor:
A. Jăger-Waldau
Editor:
P. Helm
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