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Harvesting biomechanical energy in the walking by shoe based on liquid metal magnetohydrodynamics

Dan DAI, Jing LIU, Yixin ZHOU

Frontiers in Energy 2012, Volume 6, Issue 2, Pages 112-121 doi: 10.1007/s11708-012-0186-x

Abstract: magnetohydrodynamics generation system (LMMGS) was proposed and demonstrated in this paper for collecting parasiticpower in shoe while walking.Unlike the conventional shoe-mounted human power harvesters that use solid coil and gear mechanism, theExperimental results reveal that both the output voltage and power of the LMMGS increase with the volumeIn addition, a maximum output power of 80 mW is obtained by the LMMGS C with an efficiency of approximately

Keywords： human energy harvesting liquid metal wearable magnetohydrodynamics generator parasitic power in shoe

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Analysis and design of pulse frequency modulation dielectric barrier discharge for low power applications

Tang-tang GUO,Xing-liang LIU,Shi-qiang HAO,Chi ZHANG,Xiang-ning HE

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 3, Pages 249-258 doi: 10.1631/FITEE.1400185

Abstract: For low power dielectric barrier discharge (DBD) used in small-size material treatment or portable devices, highstep transformer parasitic capacitance greatly influences the performance of the resonant converterIn this paper, steady-state analysis of the low power DBD is presented, considering the inevitable parasiticfrequency and the derived expressions are accurate and convenient for the analysis and design of the powerBased on the proposed linear equivalent load circuit, the influence of transformer parasitic capacitance

Keywords： Dielectric barrier discharge Rectifier-compensated first harmonic approximation Parasitic capacitance Power converter design

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Real-time monitoring of brake shoe keys in freight cars

Rong ZOU,Zhen-ying XU,Jin-yang LI,Fu-qiang ZHOU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 3, Pages 191-204 doi: 10.1631/FITEE.1400305

Abstract: The brake shoe key (BSK) is an important component in the brake system, and its absence will lead to

Keywords： Condition monitoring Feature expression Brake shoe key Machine vision

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Parasitic rotation evaluation and avoidance of 3-UPU parallel mechanism

Haibo QU, Yuefa FANG, Sheng GUO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2, Pages 210-218 doi: 10.1007/s11465-012-0317-4

Abstract: prototype of 3-UPU (universal-prismatic-universal joint) parallel mechanism proposed by Tsai [ ], the parasiticanalysis of the terminal constraint system of the 3-UPU parallel mechanism, the equation about the parasiticThen the norm of possible parasitic rotation is employed to evaluate the mechanism stability with limitedAnd the contour atlas of parasitic rotation is obtained, which can be used for further analysis and designFinally, the method for avoidance of possible parasitic motions is presented by adding redundantly actuated

Keywords： parallel mechanism 3-UPU (universal-prismatic-universal joint) parasitic motions limited clearance redundantly

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Fast forward kinematics algorithm for real-time and high-precision control of the 3-RPS parallel mechanism

Yue WANG, Jingjun YU, Xu PEI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3, Pages 368-375 doi: 10.1007/s11465-018-0519-5

Abstract: special geometric conditions of the 3-RPS parallel mechanism, and it eliminates the errors produced by parasitic

Keywords： 3-RPS parallel mechanism forward kinematics numerical algorithm parasitic motion

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UPFC setting to avoid active power flow loop considering wind power uncertainty

Shenghu LI, Ting WANG

Frontiers in Energy 2023, Volume 17, Issue 1, Pages 165-175 doi: 10.1007/s11708-020-0686-z

Abstract: The active power loop flow (APLF) may be caused by impropriate network configuration, impropriate parameterThe power flow controllers, e.g., the unified power flow controller (UPFC), may be the reason and theapproaching to the critical existing condition, the integrated power flow needs less iterations andBesides, with wind power fluctuation, the interval power flow (IPF) is introduced into the integratedpower flow, and solved with the affine Krawcyzk iteration to make sure that the range of active power

Keywords： active power loop flow (APLF) unified power flow controller (UPFC) wind power uncertainty interval power

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Possible role of power-to-heat and power-to-gas as flexible loads in German medium voltage networks

Mark KUPRAT, Martin BENDIG, Klaus PFEIFFER

Frontiers in Energy 2017, Volume 11, Issue 2, Pages 135-145 doi: 10.1007/s11708-017-0472-8

Abstract: As an option to cope with those problems, the technologies of power-to-gas (PtG) and power-to-heat (PtH, the network-supporting abilities and the potential to provide ancillary services, such as control power

Keywords： power-to-gas power-to-heat flexible loads ancillary services coherent energy systems

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Evaluation of the power-generation capacity of wearable thermoelectric power generator

Yang YANG, Jing LIU,

Frontiers in Energy 2010, Volume 4, Issue 3, Pages 346-357 doi: 10.1007/s11708-010-0112-z

Abstract: heat dissipating from the human body through the skin surface is a promising way to supply electronic powerthe temperature difference between the environment and the human body, and complete elimination of power

Keywords： thermal energy harvester thermoelectric generator biological heat transfer power generating capacity

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Renewable power for China: Past, present, and future

Eric MARTINOT

Frontiers in Energy 2010, Volume 4, Issue 3, Pages 287-294 doi: 10.1007/s11708-010-0120-z

Abstract: examines the history, status, policy situation, development issues, and prospects for key renewable powerglobal leader in wind turbine and solar photovoltaic (PV) production, and leads the world in total powerexperience and performance, transmission constraints, grid interconnection time lags, resource assessments, powerProspects for biomass power are limited by resource constraints.Other technologies such as concentrating solar thermal power, ocean energy, and electricity storage require

Keywords： renewable energy wind power solar power sustainable energy policy green industry

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Carbon emission impact on the operation of virtual power plant with combined heat and power system

Yu-hang XIA,Jun-yong LIU,Zheng-wen HUANG,Xu ZHANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5, Pages 479-488 doi: 10.1631/FITEE.1500467

Abstract: A virtual power plant (VPP) can realize the aggregation of distributed generation in a certain region, and represent distributed generation to participate in the power market of the main grid.This paper proposes the allocation of an electric boiler to realize wind power directly converted forsupplying heat, which can not only overcome the limitation of heat output from a combined heat and powerThe power output of each unit in the case study is analyzed under four scenarios.

Keywords： Virtual power plant (VPP) Carbon emissions Electric boiler Wind power Combined heat and power (CHP

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Strategy of Manufacturing Quality Power

The Research Group for Manufacturing Quality Power Strategy

Strategic Study of CAE 2015, Volume 17, Issue 7, Pages 24-28

Abstract:

The meaning to implement the Manufacturing Quality Power Strategy was systematically discussed in

Keywords： manufacturing power quality strategy

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Will Germany move into a situation with unsecured power supply?

Harald SCHWARZ

Frontiers in Energy 2019, Volume 13, Issue 3, Pages 551-570 doi: 10.1007/s11708-019-0641-z

Abstract: increasing traffic, CO emissions from this mobility sector increased and CO emission from German powercalled “The German Coal Commission”) to propose a time line: how Germany can move out of coal-fired powermade: ① Until 2022: Due to a former decision of the German Government, the actual remaining nuclear powerplants should be switched off. ③ Until 2038: The final 17 GW of German hard coal or lignite-fired powerCoal Commission” has not investigated the relevant technical parameter to ensure a secured electric power

Keywords： CO₂ reduction mobility sector renewable generation coal commission secured power generationcapacity reliable power supply power-to-gas power-to-heat

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A comprehensive review of wind power based power system frequency regulation

Frontiers in Energy 2023, Volume 17, Issue 5, Pages 611-634 doi: 10.1007/s11708-023-0876-6

Abstract: Wind power (WP) is considered as one of the main renewable energy sources (RESs) for future low-carbonand high-cost-efficient power system.However, its low inertia characteristic may threaten the system frequency stability of the power systemIn this paper, the impact of WP on power system frequency stability is initially presented.Furthermore, the prospects, future challenges, and solutions of WP participating in power system frequency

Keywords： frequency regulation strategies wind turbine generators grid-forming control model predictive control energy storage system

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Optimal operation of integrated energy system including power thermal and gas subsystems

Frontiers in Energy 2022, Volume 16, Issue 1, Pages 105-120 doi: 10.1007/s11708-022-0814-z

Abstract: hybrid multi-energy systems, the integrated energy system contains different forms of energy such as powerthe integrated energy system, in this paper, the dist-flow method is applied to quickly calculate the powerflow and the gas system model is built by the analogy of the power system model.The power-thermal-gas integrated energy system used in the case study includes an IEEE-33 bus power systemSimulation-based calculations and comparison of the results under different scenarios prove that the power-thermal-gas

Keywords： integrated energy system power-to-gas dist-flow piecewise linearization alternating direction method

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A New Way to Evaluate Extensive Marketing Power

Xu Lijuan

Strategic Study of CAE 2006, Volume 8, Issue 6, Pages 100-102

Abstract:

The extensive marketing power is the ability of obtaining the consumers' approval during the courseThis paper puts forward a new method to evaluate this important power, so as to make a relatively scientificway to help raising enterprise's influencing power in market.

Keywords： marketing power extensive marketing power influencing power in market index of extensive marketing power