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Energies 2018, 11(1), 226; https://doi.org/10.3390/en11010226

Applying the Taguchi Method for Investigating the Phase-Locked Loop Dynamics Affected by Hybrid Storage System Parameters

Department of Electrical Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz 61357-43337, Iran
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Received: 12 November 2017 / Revised: 24 December 2017 / Accepted: 10 January 2018 / Published: 17 January 2018
(This article belongs to the Section Electrical Power and Energy System)
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Abstract

Storage systems play an important role in performance of micro-grids. Storage systems may decrease fluctuations caused by periodic and unpredictable nature of distributed generation resource. Some micro-grids are connected to the network via a grid-interface converter. The phase-locked loop (PLL) is a commonly technique for the grid synchronization of network-connected converters. Various parameters affect the stability of PLL (including the network-side and microgrid-side parameters). The effect of the micro-grid-side parameters on the stability of the PLL has not been studied so far. In this paper, the stability of PLL influenced by microgrid-side parameters has been evaluated after a detailed analytical modeling of micro-grid components (including the production power fluctuations, energy storage system, microgrid-side loads, controller parameters etc.). This paper proposes two new stability analysis criteria for PLL affected by micro-grid and hybrid storage system parameters. Using proposed criteria for stability of PLL, optimized rate of micro-grid and hybrid storage system parameters are obtained using statistical methods (Taguchi approach). Finally, behavior of PLL affected by hybrid storage system is investigated. The simulation results and eigenvalues analysis confirm the theoretical analysis and proposed criteria. View Full-Text
Keywords: hybrid storage system parameters; new stability analysis criteria; optimized rate of micro-grid and hybrid storage system parameters; Taguchi approach; analytical modeling hybrid storage system parameters; new stability analysis criteria; optimized rate of micro-grid and hybrid storage system parameters; Taguchi approach; analytical modeling
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Ahmadzadeh, M.; Mortazavi, S.; Saniei, M. Applying the Taguchi Method for Investigating the Phase-Locked Loop Dynamics Affected by Hybrid Storage System Parameters. Energies 2018, 11, 226.

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