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Analysis of the double-layer α-Si:H emitter with different doping concentrations for α-Si:H/c-Si heterojunction solar cells

Haibin HUANG,Gangyu TIAN,Tao WANG,Chao GAO,Jiren YUAN,Zhihao YUE,Lang ZHOU

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 92-95 doi: 10.1007/s11708-016-0432-8

Abstract: www.paper.edu.cn/html/releasepaper/2014/04/282/) prove that the double-layer emitter increases the short circuit currentBased on the quantum efficiency (QE) results and the current-voltage-temperature analysis, the mechanismThe possible reasons for the increased current include the enhancement of the QE in the short wavelengthrange, the increase of the tunneling probability of the current transport and the decrease of the activation

Keywords： double-layer emitter     α-Si:H/c-Si heterojunction solar cell     short circuit current     quantum efficiency     current-voltage-temperature    

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Constant temperature control of tundish induction heating power supply for metallurgical manufacturing

Yufei YUE, Qianming XU, Peng GUO, An LUO

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 16-26 doi: 10.1007/s11708-018-0572-0

Abstract: Specially, the constant temperature control is greatly significant for metallurgical manufacturing.In terms of the relationship between TIH load temperature and output power of TIHPS, the constant temperatureBesides, an input harmonic current blocking strategy and a load voltage feedforward control are alsoproposed to realize constant temperature control.

Keywords： tundish induction heating power supply (TIHPS)     constant temperature control     input harmonic current blocking     load voltage feedforward    

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Development and advances in modular multilevel converter based HVDC projects in China

Frontiers of Engineering Management   Pages 183-189 doi: 10.1007/s42524-022-0248-7

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Keywords： high voltage direct current     power converter     power systems     renewable energy     ultra-high voltage    

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Research of an Interleaved Low-Voltage/High-Current DC-DC Converter

Wang Ping,Sun Xu,Song Liangyu

Strategic Study of CAE 2005, Volume 7, Issue 4,   Pages 59-63

Abstract: high-performance microprocessors were lower than that of the previous ones and the research of low-voltage/high-current DC-DC converter was enhanced.Among all topologies, the current-doublers topology is optional.In the current-doublers topology, the ripple current of the output filter capacitor is reduced becausethat a few of current-doublers are interleaved.

Keywords： low-voltage/high-current DC-DC converter     current-doublers     interleaved    

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Experimental study of pollution effect on the behavior of high voltage insulators under alternative current

Hani BENGUESMIA, Nassima M’ZIOU, Ahmed BOUBAKEUR

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 213-221 doi: 10.1007/s11708-017-0479-1

Abstract: paper, the impact of the conductivity and the distribution of pollution on the behavior of the high voltagedifferent conductivities for a discontinuous distribution of the pollution on the insulator under an AC voltageFurthermore, the influence of the pollution on the flashover voltage and the leakage current is studied

Keywords： 1512L insulator     circular model     artificial pollution     flashover     leakage current     discontinuous pollution     high voltage    

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power quality conditioner based on a three-level NPC inverter using fuzzy control techniques for all voltage

Salim CHENNAI,M-T BENCHOUIA

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 221-239 doi: 10.1007/s11708-014-0317-7

Abstract: The proposed UPQC is capable of mitigating source current harmonics and compensate all voltage disturbancessuch as voltage sags, swells, unbalances and harmonics.The DC voltage is maintained constant using proportional integral voltage controller.performances of the proposed UPQC system are evaluated in terms of power factor correction, mitigation of voltageor current harmonics and all other voltage disturbances compensation using Matlab-Simulink software

Keywords： three-level neutral point clamped (NPC) inverter     unified power quality conditioner (UPQC)     current harmonicsmitigation     fuzzy logic controller     voltage disturbance compensation     shunt active filter     series active    

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Series transformer based diode-bridge-type solid state fault current limiter

Amir HEIDARY,Hamid RADMANESH,Seyed Hamid FATHI,G. B. GHAREHPETIAN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 769-784 doi: 10.1631/FITEE.1400428

Abstract: We propose a novel series transformer based diode-bridge-type solid state fault current limiter (SSFCLBased on this RLC branch, two current limiting modes are created.Then, by controlling the magnitude of the DC reactor current, the fault current is reduced and the voltageconnected in parallel with the IGBT, serves as a snubber circuit for decreasing the transient recovery voltageThe proposed SSFCL can limit the fault current without any delay and successfully smooth the fault current

Keywords： Solid state fault current limiter (SSFCL)     Power quality     Voltage sag     Point of common coupling (PCC)    

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Application of Cable Temperature Measuring System inIndustrial Power Supply Network

Yan Hong

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 172-174

Abstract:

The necessity and actual application of an on-line temperature monitoringsystem used for10kV high voltage electric cable of industrial enterprises has been studied in this paperSelecting method for temperature sensors, composition of temperature monitoring system and its operatingThe online trouble shooting and diagnosis for high voltage electric cable and cable joints with non stop

Keywords： 10kV high voltage electric cable     terminal     temperature sensor     monitoring system    

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Study on Reliability of Low-voltage Circuit Breakers and Residual Current Protective Electrical Apparatus

Lu J ianguo

Strategic Study of CAE 2005, Volume 7, Issue 6,   Pages 36-40

Abstract:

This paper expounded the importance of reliability study on low-voltage circuit-breakers and residualcurrent operated circuit-breakers, introduced the general situation of their reliability study carriedThen this paper discussed the failure modes of low-voltage circuit-breakers and residual current operatedthe first time, which provided a kind of theory and method for the reliability research work of low-voltage

Keywords： failure modes     reliability indexes     reliability compliance test plan    

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Impact of selection of DC base values and DC link control strategies on sequential AC-DC power-flow convergence

Shagufta KHAN,Suman BHOWMICK

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 399-412 doi: 10.1007/s11708-015-0374-6

Abstract: This paper demonstrates the convergence of the integrated AC-DC power-flow algorithm as affected by the selection of different base values for the DC quantities and adoption of different control strategies for the DC link. For power-flow modeling of integrated AC-DC systems, the base values of the various DC quantities can be defined in several ways, giving rise to different sets of per-unit system equations. It is observed that different per-unit system models affect the convergence of the power-flow algorithm differently. In a similar manner, the control strategy adopted for the DC link also affects the power-flow convergence. The sequential method is used to solve the DC variables in the Newton Raphson (NR) power flow model, where AC and DC systems are solved separately and are coupled by injecting an equivalent amount of real and reactive power at the terminal AC buses. Now, for a majority of the possible control strategies, the equivalent real and reactive power injections at the concerned buses can be computed a-priori and are independent of the NR iterative loop. However, for a few of the control strategies, the equivalent reactive power injections cannot be computed a-priori and need to be computed in every NR iteration. This affects the performance of the iterative process. Two different per-unit system models and six typical control strategies are taken into consideration. This is validated by numerous case studies conducted on the IEEE 118-bus and 300-bus test systems.

Keywords： AC-DC power-flow     Newton-Raphson method     high voltage direct current (HVDC) control strategy    

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Current status of municipal wastewater treatment plants in North-east China: implications for reforming

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1673-5

Abstract:

● The performance and costs of 20 municipal WWTPs were analyzed.

Keywords： Low temperature     Municipal WWTPs     Cold region     Electricity consumption     Nitrogen removal    

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Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 386-393 doi: 10.1007/s11708-014-0323-9

Abstract: Accurate modeling and parameters of high voltage (HV) grid are critical for stability research of system

Keywords： high voltage (HV) grid     frequency stability parameter identification     primary frequency regulation (PFR    

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Recent advances toward high voltage, EC-free electrolytes for graphite-based Li-ion battery

Tong Zhang, Elie Paillard

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 577-591 doi: 10.1007/s11705-018-1758-z

Abstract: In the last years, many alternative electrolytes, aiming at allowing high voltage battery operation,Thus, we review here the high voltage, EC-free alternative electrolytes, focusing on those allowing the

Keywords： lithium-ion     electrolyte     solid electrolyte interphase     additives     high voltage     graphite    

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Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 943-955 doi: 10.1007/s11708-021-0793-5

Abstract: the wind turbines (WTs) are controlled by a new type of converter control strategy referred to as the voltage

Keywords： weak grids     voltage source (VS) control     wind turbine (WT)     stabilization control     wind farm     inertial    

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Cluster voltage control method for “Whole County” distributed photovoltaics based on improved differential

Frontiers in Energy   Pages 782-795 doi: 10.1007/s11708-023-0905-8

Abstract: However, the high penetration rate of DPVs has brought problems such as voltage violation and power qualityTo address the problems, this paper proposes a cluster voltage control method for distributed photovoltaicFirst, it partitions the distribution network into clusters, and different clusters exchange terminal voltageonly greatly improves the operational efficiency of the algorithm but also effectively controls the voltageof the distribution network, and maximizes the consumption capacity of DPVs based on qualified voltage

Keywords： distributed photovoltaics (DPVs)     cluster partitioning     improved differential evolution algorithm     voltage    

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Title Author Date Type Operation

Analysis of the double-layer α-Si:H emitter with different doping concentrations for α-Si:H/c-Si heterojunction solar cells

Haibin HUANG,Gangyu TIAN,Tao WANG,Chao GAO,Jiren YUAN,Zhihao YUE,Lang ZHOU

Journal Article

Constant temperature control of tundish induction heating power supply for metallurgical manufacturing

Yufei YUE, Qianming XU, Peng GUO, An LUO

Journal Article

Development and advances in modular multilevel converter based HVDC projects in China

Journal Article

Research of an Interleaved Low-Voltage/High-Current DC-DC Converter

Wang Ping,Sun Xu,Song Liangyu

Journal Article

Experimental study of pollution effect on the behavior of high voltage insulators under alternative current

Hani BENGUESMIA, Nassima M’ZIOU, Ahmed BOUBAKEUR

Journal Article

power quality conditioner based on a three-level NPC inverter using fuzzy control techniques for all voltage

Salim CHENNAI,M-T BENCHOUIA

Journal Article

Series transformer based diode-bridge-type solid state fault current limiter

Amir HEIDARY,Hamid RADMANESH,Seyed Hamid FATHI,G. B. GHAREHPETIAN

Journal Article

Application of Cable Temperature Measuring System inIndustrial Power Supply Network

Yan Hong

Journal Article

Study on Reliability of Low-voltage Circuit Breakers and Residual Current Protective Electrical Apparatus

Lu J ianguo

Journal Article

Impact of selection of DC base values and DC link control strategies on sequential AC-DC power-flow convergence

Shagufta KHAN,Suman BHOWMICK

Journal Article

Current status of municipal wastewater treatment plants in North-east China: implications for reforming

Journal Article

Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

Journal Article

Recent advances toward high voltage, EC-free electrolytes for graphite-based Li-ion battery

Tong Zhang, Elie Paillard

Journal Article

Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Journal Article

Cluster voltage control method for “Whole County” distributed photovoltaics based on improved differential

Journal Article