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Hierarchical control for parallel bidirectional power converters of a grid-connected DC microgrid Article

Hui-yong HU, Yong-gang PENG, Yang-hong XIA, Xiao-ming WANG, Wei WEI, Miao YU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 12, Pages 2046-2057 doi: 10.1631/FITEE.1601497

Abstract: The DC microgrid is connected to the AC utility by parallel bidirectional power converters (BPCs) toimport/export large power, whose control directly affects the performance of the grid-connected DC microgridThe proposed tertiary control realizes precise active and reactive power exchange through parallel BPCs

Keywords： Parallel bidirectional power converters Hierarchical control DC microgrid

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A novel PV sub-module-level power-balancing topology for maximum power point tracking under partial shading Article

Mustafa GOKDAG,Mehmet AKBABA

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 12, Pages 1388-1396 doi: 10.1631/FITEE.1500322

Abstract: shading and mismatch conditions among the series-connected modules/sub-modules suffer from a nonconvex powercurve with multiple local maxima and decreased peak power for the whole string.curve, which results in increased peak power for the string.Reduction in the number of power electronics components is realized by the fact that two sub-modulesThis proves that with the proposed topology it is possible to extract almost all the power available

Keywords： Sub-module-level maximum power point tracking (MPPT) Differential power processing (DPP) Distributedpower converters Switched-capacitor (SC) converters

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The status and outlook of wind power converters

Ma Weiming,Xiao Fei

Strategic Study of CAE 2011, Volume 13, Issue 1, Pages 11-20

Abstract:

The power converter, which is one of the critical equipments of the system, must meet the requirements of high power density, high reliability and excellent control performanceGreat development has been achieved in China about wind power converters, which is still lagging behindIn this paper, some critical technologies of direct driven wind power converter systems are introduced

Keywords： wind power generation variable speed constant frequency doubly fed induction generation system directdriven generation system power converter

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Transient performance comparison of grid-forming converters with different FRT control strategies

Frontiers in Energy 2023, Volume 17, Issue 2, Pages 239-250 doi: 10.1007/s11708-022-0856-2

Abstract: Grid-forming converters (GFMs) are faced with the threat of transient inrush current and synchronization

Keywords： grid-forming converters (GFMs) fault ride through (FRT) transient stability transient inrush current

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Analysis and control of wind-driven self-excited induction generators connected to the grid through powerconverters

S. Senthil KUMAR, N. KUMARESAN, N. Ammasai GOUNDEN, Namani RAKESH

Frontiers in Energy 2012, Volume 6, Issue 4, Pages 403-412 doi: 10.1007/s11708-012-0208-8

Abstract: analysis of the wind-driven self-excited induction generators (SEIGs) connected to the grid through powerconverters has been developed in this paper.For this analysis, a method of representing the grid power as equivalent load resistance in the steady-stateA simple control technique for maximum power point tracking (MPPT) in wind energy conversion systemsconverters has been demonstrated by experiments and simulation.

Keywords： self-excited induction generator (SEIG) renewable power generation power converters maximum power pointtracking (MPPT) steady state analysis power generation systems

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Modeling and control of photovoltaic energy conversion connected to the grid

Rebei NAJET, Ben Ghanem BELGACEM, Hasnaoui OTHMAN

Frontiers in Energy 2012, Volume 6, Issue 1, Pages 35-46 doi: 10.1007/s11708-012-0169-y

Abstract: The electrical energy from a PVG is transferred to the grid via two static converters (DC/DC and DC/ACThe adapted control law for extracting maximum power from the PVG is based on the incremental conductanceThe developed algorithm has the capability of searching the maximum photovoltaic power under variable

Keywords： photovoltaic generator (PVG) maximum power point tracker grid-connected static converters

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The status and outlook of wind power converters

Min Enze,Xie Wenhua

Strategic Study of CAE 2011, Volume 13, Issue 2, Pages 13-15

Abstract:

The world recent activities in the fields of micro-algae biodiesel, cellulosic ethanol and biogasoline were reviewed; the challenges and measures taken were discussed. It was proposed that the first industrial demonstration unit for these micro-algae biodiesel, cellulosic ethanol and biogasoline should be built in China before 2015, based on raw material supply, R & D progress and international cooperation to lay the foundation for future development.

Keywords： bio-based automobile fuel micro-algae biodiesel cellulosic ethanol biogasoline

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Near-field radiative thermoelectric energy converters: a review

Eric TERVO, Elham BAGHERISERESHKI, Zhuomin ZHANG

Frontiers in Energy 2018, Volume 12, Issue 1, Pages 5-21 doi: 10.1007/s11708-017-0517-z

Abstract: Radiative thermoelectric energy converters, which include thermophotovoltaic cells, thermoradiative cellsIf this exchange occurs at micro or nanoscale distances, power densities can be greatly enhanced andThe development and state of the art of these near-field converters are discussed in detail, and remaining

Keywords： energy conversion systems luminescent refrigeration near-field radiation thermophotovoltaic thermoradiative cell

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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