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A Composite Finite-...
A Composite Finite-Time Controller for Decentralized Power Sharing and Stabilization of Hybrid Fuel Cell/Supercapacitor System With Constant Power Load
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- Xu, Qianwen, 1992- (author)
- KTH,Elkraftteknik
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- Zhang, Chuanlin (author)
- Shanghai Univ Elect Power, Coll Automat Engn, Intelligent Autonomous Syst Lab, Shanghai, Peoples R China.
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- Xu, Zhao (author)
- Hong Kong Polytech Univ, Shenzhen Res Inst, Hong Kong, Peoples R China.;Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Peoples R China.;Changsha Univ Sci & Technol, Changsha 410077, Peoples R China.
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- Lin, Pengfeng (author)
- Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore.
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- Wang, Peng (author)
- Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore.
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2021
- 2021
- English.
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In: IEEE Transactions on Industrial Electronics. - : Institute of Electrical and Electronics Engineers (IEEE). - 0278-0046 .- 1557-9948. ; 68:2, s. 1388-1400
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The hybrid fuel cell/supercapacitor (FC/SC) system is a promising onboard power supply system for more electric aircraft (MEA), where system stability is a critical issue due to the high penetration of constant power loads (CPLs) in MEA. This article proposes a composite finite-time controller for decentralized power sharing and stabilization of the hybrid FC/SC system with CPLs. It consists of an integral droop (ID) + finite-time controller for the SC converter and a proportional droop (PD) + finite-time controller for the FC converter. First, the coordination of PD and ID achieves decentralized power sharing between FC and SC such that SC only compensates fast fluctuations and FC provides smooth power at the steady state. Then, a finite-time observer is designed to provide feedforward compensation for the disturbances and enables accurate tracking with fast dynamics. Finally, a composite finite-time controller is constructed following a nonrecursive synthesis procedure with a rigorous large signal stability analysis. The proposed controller guarantees finite-time convergence even under large signal variations and can be easily implemented with a practical gain tuning procedure. Simulations and experiments are conducted to verify the proposed technique.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- More electric aircraft (MEA)
- hybrid fuel cell (FC)/supercapacitor (SC) system
- decentralized
- constant power load (CPL)
- large signal stability
Publication and Content Type
- ref (subject category)
- art (subject category)
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