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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 systempaper, simulation modeling of the system frequency was conducted of an interconnected power system with HVBased on recorded tripping data of the HV transmission lines, system parameters were identified by usingThe results of this paper can provide reference for the stability research of HV power grid.

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

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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: This paper investigates and discusses the interaction stability issues of a wind farm with weak gridthe wind turbines (WTs) are controlled by a new type of converter control strategy referred to as the voltageThe primary intention of the VS control method is to achieve the high-quality inertial response capabilityHowever, when it is applied to multiple WTs within a wind farm, its weak-grid performance regarding thestability margin quantification index, not only the interactions between the wind farm and the weak grid

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

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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: component of electrolytes, due to its excellent ability to allow graphite anode operation–also required for highIn 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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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: this paper, the impact of the conductivity and the distribution of pollution on the behavior of the highvoltage insulator cap and pin 1512L, artificially polluted is described.different 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     highvoltage    

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THD reduction with reactive power compensation for fuzzy logic DVR based solar PV grid connected system

Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 464-479 doi: 10.1007/s11708-014-0307-9

Abstract: Dynamic voltage restorer (DVR) is used to protect sensitive loads from voltage disturbances of the distributionIn this paper, a new control approach for the 200 kW solar photovoltaic grid connected system with perturbarray and maintains DC link voltage constant by changing modulation index of the converter.source converter (VSC) current and grid current with fast tracking of optimum operating point at unityStandards (IEEE-519/1547), stipulates that the current with THD greater than 5% cannot be injected into the grid

Keywords： fuzzy logic     maximum power point tracking (MPPT)     proportional integral (PI)     control     voltage restorer    

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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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Reasonable Rated Voltage of High and Medium Power Adjustable-Speed Drives for Energy Saving

Ma Xiaoliang

Strategic Study of CAE 2001, Volume 3, Issue 11,   Pages 80-84

Abstract:

A large amount of energy will be saved if adjustable-speed drives are adopted by high and medium powerThe rated voltage of most of the motors in the power range is 10 kV because the power supply is 10 kVbecause this kind of inverter consists of a lot of power electronic devices in series and its cost is highand reliability is poorer than lower voltage one.of the motor and inverter is the same as power supply, i. e. a lower rated voltage can be used for the

Keywords： high and medium power     adjustable-speed drives for energy saving     reasonable rated voltage     low voltageinverters     medium voltage inverters     by-pass    

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implementation for a doubly fed induction generator based on direct power control under unbalanced and distorted gridvoltage

Heng NIAN,Yi-peng SONG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 4,   Pages 321-334 doi: 10.1631/FITEE.1400170

Abstract: implementation technique for a doubly fed induction generator (DFIG) under unbalanced and distorted gridvoltage based on direct power control (DPC).voltage nor complicated control reference calculation is required.developed to validate the availability of the proposed DPC strategy under unbalanced and distorted gridvoltage.

Keywords： Direct power control     Doubly fed induction generator     Unbalanced and distorted grid voltage     Vector proportional    

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Power quality investigation of a solar PV transformer-less grid- connected system fed DVR

Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 240-253 doi: 10.1007/s11708-014-0322-x

Abstract: This paper presents a single stage transformer-less grid-connected solar photovoltaic (PV) system withIn the absence of active input power, the grid-tied voltage source converter (VSC) is operated in a reactivepower generation mode, which powers the control circuitry, and maintains a regulated DC voltage to thewhich controls the grid side converter during single-phase to ground fault.array, and maintains the DC link voltage constant by changing the modulation index of the VSC.

Keywords： data-based maximum power point tracking (MPPT)     total harmonic distortion (THD)     proportional integral     control     voltage    

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High purity Mn

Xiaoqiang SHAN, Fenghua GUO, Wenqian XU, Xiaowei TENG

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 383-400 doi: 10.1007/s11708-017-0485-3

Abstract: Developing electrodes with high specific energy by using inexpensive manganese oxides is of great importanceIn this paper, the synthesis of high purity layered Mn O nanoparticles through solid state thermal treatment

Keywords： manganese oxides Mn5O8     high voltage     aqueous Na-ion storage    

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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:

In the recent years, the operating voltages of most high-performance microprocessors were lower thanthat of the previous ones and the research of low-voltage/high-current DC-DC converter was enhanced.

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

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A pseudocapacitive molecule-induced strategy to construct flexible high-performance asymmetric supercapacitors

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1208-1220 doi: 10.1007/s11705-023-2304-1

Abstract: The combination of high-voltage windows and bending stability remains a challenge for supercapacitorssodium lignosulfonate-based electrodes are successfully developed, showing perfect bending stability and highinterfacial structure and stable ion-electron transport, the asymmetric supercapacitors provide a wide voltagewindow reaching 1.7 V, outstanding bending stability and high energy-power density of 83.87 Wh·kgvoltage

Keywords： synergy     pseudocapacitive lignosulfonate     flexible electronic devices     asymmetric supercapacitor     wide voltage    

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New Cuk Matrix Converter with High Voltage Transfer Ratio

Zhang Xiaoping,Zhu Jianlin,Tang Huaping,Zhang Binggen,Liu Shasha

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 78-83

Abstract:

The drawback of classical matrix converter having low voltage transferand its fundamental are firstly introduced, the analytic expression concerning functions relation of voltagevalidity and feasibility of the new topology are tested by simulation.The results show that the output voltageand frequency can be modulated optionally by the new converter, of which the voltage transfer ratioThus the inherent problem of classical matrix converter having low voltage transfer ratio is effectively

Keywords： Cuk matrix converter     circuit topology     voltage transfer ratio     double-loop control     simulation    

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High End Computing in China and the Exploration of “Sunway” Computers

Chen Zuoning

Strategic Study of CAE 2004, Volume 6, Issue 9,   Pages 23-28

Abstract: HEC in China, introduces the major technical features and application achievements of Sunway series high-performance

Keywords： high-end computing     grid computing     high performance service     high productivity computing     total cost of    

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Solid-state transformer-based new traction drive system and control

Jianghua FENG, Jing SHANG, Zhixue ZHANG, Huadong LIU, Zihao HUANG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 411-426 doi: 10.1007/s11465-018-0467-0

Abstract: developing the next-generation electric traction system which will be efficient and lightweight, with highFor the purpose of reducing system volume and weight and improving efficiency and grid-side power quality, an efficient SSTT optimized topology combining high-voltage cascaded rectifiers with high-power high-frequencysystem, the mathematical model of secondary power transfer is built, and the mechanism of pulsating voltage

Keywords： solid-state traction transformer     high-voltage cascaded rectifier     LLC resonant converter     synchronous rotatingreference frame     carrier-interleaving phase shift control     secondary pulsating voltage     beat frequency    

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Title Author Date Type Operation

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

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

Journal Article

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

Tong Zhang, Elie Paillard

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

THD reduction with reactive power compensation for fuzzy logic DVR based solar PV grid connected system

Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR

Journal Article

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

Journal Article

Reasonable Rated Voltage of High and Medium Power Adjustable-Speed Drives for Energy Saving

Ma Xiaoliang

Journal Article

implementation for a doubly fed induction generator based on direct power control under unbalanced and distorted gridvoltage

Heng NIAN,Yi-peng SONG

Journal Article

Power quality investigation of a solar PV transformer-less grid- connected system fed DVR

Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR

Journal Article

High purity Mn

Xiaoqiang SHAN, Fenghua GUO, Wenqian XU, Xiaowei TENG

Journal Article

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

Wang Ping,Sun Xu,Song Liangyu

Journal Article

A pseudocapacitive molecule-induced strategy to construct flexible high-performance asymmetric supercapacitors

Journal Article

New Cuk Matrix Converter with High Voltage Transfer Ratio

Zhang Xiaoping,Zhu Jianlin,Tang Huaping,Zhang Binggen,Liu Shasha

Journal Article

High End Computing in China and the Exploration of “Sunway” Computers

Chen Zuoning

Journal Article

Solid-state transformer-based new traction drive system and control

Jianghua FENG, Jing SHANG, Zhixue ZHANG, Huadong LIU, Zihao HUANG

Journal Article