Accurate Regulation of the Power Output of a Two-Stage Photovoltaic System with Minimal Local Energy Storage

Kolakaluri, Vinay Kumar and Sarkar, Vaskar (2022) Accurate Regulation of the Power Output of a Two-Stage Photovoltaic System with Minimal Local Energy Storage. In: 2022 IEEE International Conference on Power Systems Technology, POWERCON 2022, 12-14 September 2022, Kuala Lumpur.

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Abstract

The conventional maximum power point tracking controllers are being replaced with the flexible power point tracking (FPPT) controllers to overcome the issues associated with the excess photovoltaic (PV) power production. The FPPT controller adjusts the PV array power output in accordance with the user specified reference power command (RPC). However, the PV array power output may not be adjusted precisely at the specified RPC because of the duty ratio quantization problem. As a result, there would be some power tracking error between the actually specified RPC and the tracked PV array output power. The power tracking error on the PV side eventually leads to a power tracking error on the grid side if no compensation is made. The main objective of this paper is to reduce the power tracking error on the grid side by compensating the power tracking error on the PV side with the help of a low capacity local energy storage system. A coordinated control strategy between the FPPT control and the local energy storage control is developed to achieve the specific objective. The efficacy of the proposed control strategy is verified using the MATLAB simulation studies, and the results are presented. © 2022 IEEE.

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IITH Creators:

IITH Creators	ORCiD
Sarkar, Vaskar	UNSPECIFIED

Item Type:

Conference or Workshop Item (Paper)

Additional Information:

This work was supported by the Science and Engineering Research Board (SERB), Department of Science and Technology, Government of India, under the Grant number: CRG/2021/004541.

Uncontrolled Keywords:

Coordinated battery control; duty ratio quanti-zation; flexible power point tracking; photovoltaic power generation; power tracking error minimization; supplementary energy storage

Subjects:

Electrical Engineering

Divisions:

Department of Electrical Engineering

Depositing User:

Ms Palak Jain

Date Deposited:

22 May 2023 09:45

Last Modified:

22 May 2023 09:45

URI:

http://raiithold.iith.ac.in/id/eprint/11451