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Title: An Integral-Droop based Dynamic Power Sharing Control for Hybrid Energy Storage System in DC Microgrid
Authors: Lin, Pengfeng
Wang, Peng
Xu, Qianwen
Xiao, Jianfang
Inam, Ullah Nutkani
Choo, Fook Hoong
Keywords: HESS
Integral droop
Issue Date: 2017
Source: Lin, P., Wang, P., Xu, Q., Xiao, J., Inam, U. N., & Choo, F. H. (2017). An Integral-Droop based Dynamic Power Sharing Control for Hybrid Energy Storage System in DC Microgrid. 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia.
Abstract: Power sharing performance is a critical issue of hybrid energy storage system (HESS) in autonomous DC microgrid (MG). In this paper, a novel integral droop (ID) is proposed to mimic dynamic characteristics of the capacitor by using energy storages (ESs) with quick response. The main advantage of the proposed controller is that dynamic power sharing among ESs is automatically realized in the decentralized level. For a given HESS, ESs with the proposed ID enables to compensate fast power change while ESs with conventional voltage-power (V-P) droop provide low frequency components of power demand. With coordinated control between ID and V-P droop, high/low pass filters (LPF/HPF) are intrinsically formulated in HESS in order to obtain reasonable dynamic power allocations among ESs. Matlab/Simulink model of HESS is established for the verification of ID controller, in which the impacts of different ID coefficients on transient performances of the system are analyzed in detail. Finally, the effectiveness of proposed ID is experimentally validated on a HIL (hardware in loop) HESS platform.
DOI: 10.1109/IFEEC.2017.7992061
Rights: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
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