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Browsing Electrical, Electronic and Computer Engineering by UP Author "Xia, Xiaohua"
Now showing items 1-20 of 124
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Yu, Hui; Xia, Xiaohua (Elsevier, 2012-08)In this paper, the consensus problem of multi-agent following a leader is studied. An adaptive design method is presented for multi-agent systems with non-identical unknown nonlinear dynamics, and for a leader to be ...
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Yu, Hui; Xia, Xiaohua (Elsevier, 2017-06)In this paper, the leaderless consensus problem of multi-agent systems with jointly connected topologies and nonlinear dynamics is considered, in which the nonlinear dynamics are assumed to be non-identical and unknown. ...
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Shen, Yanjun; Xia, Xiaohua (Wiley, 2014-07)In practice, design parameters of a belt conveyor are likely drifting away from their design values by maintenance, readjustment, retrofit, abrasion and circumstance change. For the purpose of energy optimization, these ...
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Liang, Xiyin; Zhang, Jiangfeng; Xia, Xiaohua (Institute of Electrical and Electronics Engineers, 2008-08)In literature it is conjectured that the states of the generalized Lorenz system with an unknown parameter can not be estimated by adaptive observers. In this paper we show that this unknown parameter and the states can ...
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Xia, Xiaohua; Zhang, Jiangfeng; Elaiw, A.M. (Elsevier, 2011-06)Two formulations exist for the problem of the optimal power dispatch of generators with ramp rate constraints: the optimal control dynamic dispatch (OCDD) formulation based on control system models, and the dynamic economic ...
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Barzegar, Farshad; Bello, Abdulhakeem; Dangbegnon, Julien K.; Manyala, Ncholu I.; Xia, Xiaohua (Elsevier, 2017-12)This work presents results obtained from the production of low-cost carbons from expanded graphite (EG) and pinecone (PC) biomass, activated in potassium hydroxide (KOH) and finally carbonized in argon and hydrogen atmosphere. ...
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Mei, Jun; Xia, Xiaohua; Song, Mengjie (Elsevier, 2018-07)This paper presents an autonomous hierarchical control method for a direct expansion air conditioning system. The control objective is to maintain both thermal comfort and indoor air quality at required levels while reducing ...
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Rodrigues, Daniel Lionel; Ye, Xianming; Xia, Xiaohua; Zhu, Bing (Elsevier, 2020-03)Existing studies have shown the benefits of battery energy storage systems (BESS) inclusion, but do not consider optimal BESS sizing and operation in a peer-to-peer (P2P) energy sharing network under different BESS ownership ...
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Kunatsa, Tawanda; Zhang, Lijun; Xia, Xiaohua (Taylor and Francis, 2022)Modelling and optimisation of biogas production from different substrate mixtures is lagging behind in research and development. Current biogas production processes are not fully exploiting co-digestion of multifaceted ...
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Fan, Yuling; Xia, Xiaohua (Elsevier, 2018-10)Determining a systematic whole-building retrofit plan for envelope components and indoor appliances to achieve targets such as cost savings and policy compliance is a challenging task. To be specific, the systematic ...
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Kunatsa, Tawanda; Xia, Xiaohua (Elsevier, 2021-12)Fossil fuels are still the major source of energy in developing countries, howbeit expensive and environmentally unsustainable. Co-digestion substrate proportions and the respective biogas potentials for a huge number of ...
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Nwulu, N.I.; Xia, Xiaohua (American Institute of Physics, 2015-07)In this paper, we integrate a Demand Response (DR) program into the multi-objective dynamic economic emission dispatch (DEED) optimization problem. The resulting optimization problem is termed DR-DEED. The DR program is ...
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Elaiw, A.M.; Xia, Xiaohua; Shehata, A.M.; Cao, Jinde (Hindawi Publishing Corporation, 2013)Combined heat and power dynamic economic emission dispatch (CHPDEED) problem is a complicated nonlinear constrained multiobjective optimization problem with nonconvex characteristics. CHPDEED determines the optimal heat ...
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Masaki, Mukalo Sandro; Zhang, Lijun; Xia, Xiaohua (Elsevier, 2017-12)Among the various types of belt conveyors, the multi-drive technology has gained worldwide popularity in recent years because of the cost saving opportunities as a result of the possible reduction of the belt weight. Until ...
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Wang, Bo; Li, Yanjing; Yang, Fei; Xia, Xiaohua (Hindawi, 2019-10-13)hybrid energy system is investigated. It incorporates the appliance time scheduling with appliance-specific power dispatch. The optimization is aimed at minimizing energy cost, maximizing renewable energy penetration, and ...
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Shen, Yanjun J.; Zhang, Daoyuan Y.; Xia, Xiaohua (Elsevier, 2017-01)In this paper, continuous observer is designed for a class of multi-output nonlinear systems with multirate sampled and delayed output measurements. The time delay may be larger or less than the sampling intervals. The ...
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Shen, Yanjun; Zhang, Daoyuan; Xia, Xiaohua (Wiley, 2016-09)This paper addresses the problem of output feedback stabilization for nonlinear systems with sampled and delayed output measurements. Firstly, sufficient conditions are proposed to ensure that a class of hybrid systems ...
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Olinga, Zadok; Xia, Xiaohua; Ye, Xianming (Elsevier, 2017-12)Measurement and verification (M&V) function has been adopted in many energy efficiency (EE) programmes to quantify energy savings, identify new energy efficiency opportunities, improve EE programme design, and reduce EE ...
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Tu, Zhizhong; Yu, Hui; Xia, Xiaohua (Elsevier, 2017-01)In this paper, finite-time adaptive consensus problem is investigated for first-order multiagent systems with unknown nonlinear dynamics. Linearly parameterized method is introduced to model unknown nonlinear dynamics of ...
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Wu, Zhou; Tazvinga, Henerica; Xia, Xiaohua (Elsevier, 2015-06)In the electricity market, customers have many choices to reduce electricity cost if they can economically schedule their power consumption. Renewable hybrid system, which can explore solar or wind sources at low cost, ...
Now showing items 1-20 of 124