Robust Control Method for DC Microgrids and Energy Routers to Improve Voltage Stability in Energy Internet

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ID: 104016
2019
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Abstract
The energy internet (EI) is a wide area power network that efficiently combines new energy technology and information technology, resulting in bidirectional on-demand power transmission and rational utilization of distributed energy resources (DERs). Since the stability of local network is a prerequisite for the normal operation of the entire EI, the direct current (DC) bus voltage stabilization for each individual DC microgrid (MG) is a core issue. In this paper, the dynamics of the EI system is modeled with a continuous stochastic system, which simultaneously considers related time-varying delays and norm-bounded modeling uncertainty. Meanwhile, the voltage stabilization issue is converted into a robust H ∞ control problem solved via a linear matrix inequality approach. To avoid the situation of over-control, constraints are set in controllers. The problem of finding a balance between voltage regulation performance and constraints for the controllers was also extensively investigated. Finally, the efficacy of the proposed methods is evaluated with numerical simulations.
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hua2019robustenergies Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Haochen Hua, Yuchao Qin, Hanxuan Xu, Chuantong Hao, Junwei Cao
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Journal energies
Year 2019
DOI
DOI not found
URL
https://www.mdpi.com/1996-1073/12/9/1622
Keywords
Technology public aspects of medicine social sciences special aspects of education history (general)

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