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Adaptive generalized predictive control scheme for single phase GPV system

Srinivas, Vedantham Lakshmi, Singh, Bhim and Mishra, Sukumar 2019. Adaptive generalized predictive control scheme for single phase GPV system. Presented at: 4th International Conference on Universal Village (UV 2018), Boston, MA, United States, 21-24 October 2018. 2018 4th International Conference on Universal Village (UV). IEEE, pp. 1-6. 10.1109/UV.2018.8642148

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Abstract

This paper proposes an adaptive generalized predictive controller (GPC) for single phase grid connected photovoltaic (GPV) system to ensure smooth active and reactive power control. Contrary to most other linear controllers, this non-linear adaptive control strategy offers quick stabilization of system parameters under variety of stochastic changes that occur in practical photovoltaic systems such as solar insolation changes, grid frequency changes, rapid perturbations in linear/nonlinear/induction motor loads. The developed controller has capability of providing smooth steady state and dynamic responses under such disturbances. The mathematical derivation of the controller is depicted and simulation results are provided to validate the effectiveness of the proposed control strategy. The comparative analysis depicts superior performance of the proposed controller, in comparison with linear power control strategy. With linear controllers, the injected active power is prone to constant fluctuations caused by different perturbation in solar PV system, thereby, resulting in corresponding fluctuations in DC link voltages, which increase the failure rate of electrolytic capacitors and the proposed control strategy serves as possible solution to handle the stochastic changes in PV system.

Item Type: Conference or Workshop Item (Paper)
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: IEEE
ISBN: 9781538651971
Last Modified: 01 Apr 2021 14:52
URI: https://orca.cardiff.ac.uk/id/eprint/140243

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