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Emerging technologies to power next generation mobile electronic devices using solar energy

Dewei JIA , Yubo DUAN , Jing LIU ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 262-288 doi: 10.1007/s11708-009-0015-z

Abstract: Mobile electronic devices such as MP3, mobile phones, and wearable or implanted medical devices have

Keywords： photovoltaic conversion     energy harvesting     solar cell     maximum power point track algorithm     PV electricitystorage     mobile/standalone PV application    

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Potential and economic viability of standalone hybrid systems for a rural community of Sokoto, North-west

O. D. OHIJEAGBON,Oluseyi. O AJAYI

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 145-159 doi: 10.1007/s11708-014-0304-z

Abstract: An assessment of the potential and economic viability of standalone hybrid systems for an off-grid ruralload probability (LOLP) of 0.01 was performed, considering 3 stand-alone applications of photovoltaic (PV), wind and diesel, and 3 hybrid designs of wind-PV, wind-diesel, and solar-diesel.The diesel standalone system (DSS) was taken as the basis of comparison as the experimental locationThe wind standalone system (WSS) was found to be the optimal means of producing renewable electricity

Keywords： photovoltaic (PV) power     wind power     solar-wind hybrid     cost per kilowatt-hour     clean energy    

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Application of metal oxides-based nanofluids in PV/T systems: a review

Frontiers in Energy 2022, Volume 16, Issue 3,   Pages 397-428 doi: 10.1007/s11708-021-0758-8

Abstract: Having the wide application of metal oxides in energy technologies, in recent years, many researcherstried to increase the performance of the PV/T system by using metal oxide-based nanofluids (NFs) as>2, SiO2, Fe3O4, CuO, ZnO, MgO)-based NFs performance in the PVtransfer feature with a maximum electrical efficiency of 17%, and a maximum temperature reduction of PVFinally, the opportunities and challenges of using NFs in PV/T systems are also discussed.

Keywords： metal oxide     nanofluids (NFs)     nanoparticles (NPs)     optical filter     PV/T systems     solar energy    

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Third Generation Mobile Communication——The IP Oriented Application of Modern Wireless Communication Technology

Wu Hequan

Strategic Study of CAE 2000, Volume 2, Issue 8,   Pages 69-75

Abstract:

The article firstly reviews the evolution of the 1st generation (analogy) mobile communication systemand the 2nd generation (digital) mobile communication system, and predicts that deployment of mobileThe mobile communication service will extend from voice to data, and the mobile communication technologywill come to application soon, introduces the 3rd generation mobile communication (3 GM) for broadbandmultimedia application.

Keywords： mobile communication     third generation mobile communication     CDMA     TD - SCDMA    

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Mobile Support Technology and Its Application Prospects in Urban Underground Engineering

Wang Xiuying,Tan Zhongsheng,Yang Jikai and Zheng Weihan

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 124-130 doi: 10.15302/J-SSCAE-2017.06.018

Abstract: In this paper, combined with the advantages of the shield method and shallow tunneling method, a mobile

Keywords： mobile support     ground deformation     application prospect     numerical simulation     site monitoring    

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Dynamic characteristics and improved MPPT control of PV generator

Houda BRAHMI, Rachid DHIFAOUI

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 342-350 doi: 10.1007/s11708-013-0242-1

Abstract: This paper presents a mathematical model of photovoltaic (PV) module and gives a strategy to calculate

Keywords： modeling of photovoltaic (PV) generator     maximum power point tracking (MPPT)     estimation parameters     real    

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Dynamic Performance of PV/T Solar-assisted Heat Pump System

Pei Gang,Ji Jie,He Wei,Sun Wei

Strategic Study of CAE 2006, Volume 8, Issue 9,   Pages 49-56

Abstract:

PV/T solar-assisted heat pump system (PV/T-SAHP) was presented in this paper and model of the PV/T-SAHPSimulation result showed that the electrical efficiency and the thermal performance of PV/T-SAHP is betterIt is proposed that the area of PV/T module,the tilt angel of PV/T module and the distance of refrigerantpipes are the three key factors of the PV/T-SAHP system optimization design.

Keywords： solar-assisted heat pump(SAHP)     photovoltaic/thermal system (PV/T)    

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Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 400-409 doi: 10.1007/s11708-017-0459-5

Abstract: The controller proposed has been implemented on the PV system connected with the weak grid using the

Keywords： PV system     grid interface     feedback linearization     inverter     LCL filter    

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Research and practice on system engineering management of a mobile payment project

Yongkai ZHOU, Hongfeng CHAI

Frontiers of Engineering Management 2017, Volume 4, Issue 2,   Pages 127-137 doi: 10.15302/J-FEM-2017011

Abstract: The popularization of the mobile internet has given rise to demand for flexible and convenient paymentit is necessary to keep pace with or even lead the trend of innovation and development in the age of mobileperspective of systems engineering, this paper introduces research and implementation of China UnionPay’s mobileThe general requirements and core engineering problems of the mobile payment project are summarized basedThe launch of the mobile payment project also opens the window to coordinating and upgrading the whole

Keywords： systems engineering     mobile payment     engineering management method     Mobile QuickPass     national information    

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Condition monitoring of a wind turbine generator using a standalone wind turbine emulator

Himani,Ratna DAHIYA

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 286-297 doi: 10.1007/s11708-016-0419-5

Abstract: The intend of this paper is to give a description of the realization of a low-cost wind turbine emulator(WTE) with open source technology from graze required for the condition monitoring to diagnose rotor and stator faults in a wind turbine generator (WTG). The WTE comprises of a 2.5 kW DC motor coupled with a 1 kW squirrel-cage induction machine. This paper provides a detailed overview of the hardware and software used along with the WTE control strategies such as MPPT and pitch control. The emulator reproduces dynamic characteristics both under step variations and arbitrary variation in the wind speed of a typical wind turbine (WT) of a wind energy conversion system (WECS). The usefulness of the setup has been benchmarked with previously verified WT test rigs made at the University of Manchester and Durham University in UK. Considering the fact that the rotor blades and electric subassemblies direct drive WTs are most susceptible to damage in practice, generator winding faults and rotor unbalance have been introduced and investigated using the terminal voltage and generated current. This wind turbine emulator (WTE) can be reconfigured or analyzed for condition monitoring without the need for real WTs.

Keywords： condition monitoring (CM)     wind turbine emulator (WTE)     wind turbine generator (WTG)     maximum power point tracking (MPPT)     tip speed ratio (TSR)     rotor faults     stator faults    

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Motion control of multi-actuator hydraulic systems for mobile machineries: Recent advancements and future

Bing XU, Min CHENG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 151-166 doi: 10.1007/s11465-018-0470-5

Abstract: upcoming trends in motion control technologies employed in designing multi-actuator hydraulic systems for mobileHydraulic systems have been extensively used in mobile machineries due to their superior power densityThen, the advanced operation methods of multi-actuator mobile machineries are reviewed, including coordinated

Keywords： motion control     electrohydraulic control     energy efficiency     mobile machineries    

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Application of Mobile Agent in Intelligent Transportation System (ITS)

Zhang Yunyong,Liu Jinde

Strategic Study of CAE 2002, Volume 4, Issue 7,   Pages 46-50

Abstract: After the excellence of mobile agent is introduced，the application of mobile agent in intelligent transportation

Keywords： intelligent transportation system ( ITS)     mobile agent     traffic control system     graphics information system    

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Sizing of hybrid PMSG-PV system for battery charging of electric vehicles

M. M. RAJAN SINGARAVEL,S. ARUL DANIEL

Frontiers in Energy 2015, Volume 9, Issue 1,   Pages 68-74 doi: 10.1007/s11708-015-0349-7

Abstract: The number of electric vehicles are increasing in the society as they are considered as zero emission vehicles and also because conventional fuels are becoming expensive. Additional electrical power should be produced to meet the energy requirement of this increase in electric vehicle population. To use the existing grid infrastructure without any failure, installing distributed generator at secondary distribution network is essential. In this work, sizing of wind-driven permanent magnet synchronous generator—photovoltaic hybrid distributed generating system has been attempted to meet the energy demand of electric vehicles of a particular residential area. Different feasible combinations for wind generator capacity and photovoltaic capacity are obtained to satisfy the additional energy requirement. Results are analyzed based on energy, financial payback periods and daily power profile of the hybrid system. Based on this analysis, the sizes of wind generator and photovoltaic array have been chosen to meet the energy demand of electric vehicles of that particular residential locality.

Keywords： electric vehicles     hybrid PMSG-PV system     smart grid    

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Modeling and control of a permanent magnet synchronous generator dedicated to standalone wind energy

Louar FATEH,Ouari AHMED,Omeiri AMAR,Djellad ABDELHAK,Bouras LAKHDAR

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 155-163 doi: 10.1007/s11708-016-0410-1

Abstract: The interest for the use of renewable energies has increased, because of the increasing concerns of the environmental problems. Among renewable energies, wind energy is now widely used. Wind turbines based on an asynchronous generator with a wound rotor present the inconvenience of requiring a system of rings and brooms and a multiplier, inferring significant costs of maintenance. To limit these inconveniences, certain manufacturers developed wind turbines based on synchronous machines with large number of pairs of poles coupled directly with the turbine, avoiding using the multiplier. If the generator is equipped with permanent magnets, the system of rings and brooms is eliminated. The control of the permanent magnet synchronous generator (PMSG) can be affected with the implementation of various techniques of control. This paper presented a new approach mainly based on the control strategy of power production system based on the PMSG. In fact, a mathematical model that simulates the Matlab chain was established with the introduction of control techniques, such as direct control of the torque (DTC) to control the load side converter (LSC), the control of the speed of the turbine and the DC-bus voltage ensured by PI regulators. To show the performance of the correctors used, some simulation results of the system were presented and analyzed.

Keywords： wind turbine     permanent magnet synchronous generator (PMSG)     converter     proportional-integral (PI)     control     direct control of the torque (DTC)     regulation    

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A new efficient optimal path planner for mobile robot based on Invasive Weed Optimization algorithm

Prases K. MOHANTY,Dayal R. PARHI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 317-330 doi: 10.1007/s11465-014-0304-z

Abstract:

Planning of the shortest/optimal route is essential for efficient operation of autonomous mobile robotIWO), a new meta-heuristic algorithm, has been implemented for solving the path planning problem of mobile

Keywords： mobile robot     obstacle avoidance     Invasive Weed Optimization     navigation    

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Title Author Date Type Operation

Emerging technologies to power next generation mobile electronic devices using solar energy

Dewei JIA , Yubo DUAN , Jing LIU ,

Journal Article

Potential and economic viability of standalone hybrid systems for a rural community of Sokoto, North-west

O. D. OHIJEAGBON,Oluseyi. O AJAYI

Journal Article

Application of metal oxides-based nanofluids in PV/T systems: a review

Journal Article

Third Generation Mobile Communication——The IP Oriented Application of Modern Wireless Communication Technology

Wu Hequan

Journal Article

Mobile Support Technology and Its Application Prospects in Urban Underground Engineering

Wang Xiuying,Tan Zhongsheng,Yang Jikai and Zheng Weihan

Journal Article

Dynamic characteristics and improved MPPT control of PV generator

Houda BRAHMI, Rachid DHIFAOUI

Journal Article

Dynamic Performance of PV/T Solar-assisted Heat Pump System

Pei Gang,Ji Jie,He Wei,Sun Wei

Journal Article

Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Journal Article

Research and practice on system engineering management of a mobile payment project

Yongkai ZHOU, Hongfeng CHAI

Journal Article

Condition monitoring of a wind turbine generator using a standalone wind turbine emulator

Himani,Ratna DAHIYA

Journal Article

Motion control of multi-actuator hydraulic systems for mobile machineries: Recent advancements and future

Bing XU, Min CHENG

Journal Article

Application of Mobile Agent in Intelligent Transportation System (ITS)

Zhang Yunyong,Liu Jinde

Journal Article

Sizing of hybrid PMSG-PV system for battery charging of electric vehicles

M. M. RAJAN SINGARAVEL,S. ARUL DANIEL

Journal Article

Modeling and control of a permanent magnet synchronous generator dedicated to standalone wind energy

Louar FATEH,Ouari AHMED,Omeiri AMAR,Djellad ABDELHAK,Bouras LAKHDAR

Journal Article

A new efficient optimal path planner for mobile robot based on Invasive Weed Optimization algorithm

Prases K. MOHANTY,Dayal R. PARHI

Journal Article