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Control of a Grid-Forming Inverter Based on Sliding-Mode and Mixed H-2/H-infinity Control
Li ZW(李忠文); Zang CZ(臧传治); Zeng P(曾鹏); Yu HB(于海斌); Li SH(李署辉); Bian J(卞晶)
Source PublicationIEEE Transactions on Industrial Electronics
Indexed BySCI ; EI
EI Accession number20171803634987
WOS IDWOS:000399674000039
Contribution Rank1
Funding OrganizationNational Natural Science Foundation of China under Grant 61100159 and 61233007, in part by the National High Technology Research and Development Program of China under Grant 2011AA040103, in part by the Foundation of Chinese Academy of Sciences under Grant KGCX2-EW-104, in part by the Strategic Pri- ority Research Program of the Chinese Academy of Sciences under Grant XDA06021100, in part by the Cross-disciplinary Collaborative Teams Program for Science, Technology and Innovation, of the Chinese Academy of Sciences Network and system technologies for security monitoring and information interaction in smart grid, and in part by energy management system for micro-smart grid.
KeywordGrid-forming Inverter Lc Filter Mixed H2/h∞ Control Nested-loop Control Sliding Mode Control
AbstractA grid-forming inverter (GFI) is an important component for operation of an islanded microgrid. Its purpose, similar to a conventional slack bus generator, is to build up a reference voltage for other distributed generating units in the microgrid. Usually, a nested-loop PI control structure is employed to control a grid-forming inverter in a dq reference frame. However, conventional PIbased nested-loop control method has a deteriorative performance under parameter variations. In this paper, a novel nested-loop control strategy is proposed for control of a grid-forming inverter system containing an LC output filter and loads. The proposed method doesn’t require a precise model for the inverter system and can better deal with uncertainties and LC filter resonance without using any passive or active damping mechanisms. It utilizes a sliding mode control in the inner current loop and a mixed H2/H1 optimal control in the outer voltage loop, which provides the advantages of constant switching frequency, low total harmonic distortion (THD), robustness against parameters variations and fast transient response. The simulation and hardware experiments presented in this paper demonstrate the proposed controller’s improved transient and steadystate performance in various key criteria, over conventional PI-based nested-loop control strategy.
WOS HeadingsScience & Technology ; Technology
WOS SubjectAutomation & Control Systems ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS Research AreaAutomation & Control Systems ; Engineering ; Instruments & Instrumentation
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Document Type期刊论文
Corresponding AuthorYu HB(于海斌)
Affiliation1.Laboratory of Networked Control Systems, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.University of the Chinese Academy of Sciences, Beijing 100049, China
3.Department of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL, 35487, United States
Recommended Citation
GB/T 7714
Li ZW,Zang CZ,Zeng P,et al. Control of a Grid-Forming Inverter Based on Sliding-Mode and Mixed H-2/H-infinity Control[J]. IEEE Transactions on Industrial Electronics,2017,64(5):3862-3872.
APA Li ZW,Zang CZ,Zeng P,Yu HB,Li SH,&Bian J.(2017).Control of a Grid-Forming Inverter Based on Sliding-Mode and Mixed H-2/H-infinity Control.IEEE Transactions on Industrial Electronics,64(5),3862-3872.
MLA Li ZW,et al."Control of a Grid-Forming Inverter Based on Sliding-Mode and Mixed H-2/H-infinity Control".IEEE Transactions on Industrial Electronics 64.5(2017):3862-3872.
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