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Well-being analysis of GSU transformer insulation incorporating the impact on power generation using

Alagarsamy KRISHNAVEL, Dusmata Kumar MOHANTA, M. Jaya Bharata REDDY

Frontiers in Energy 2013, Volume 7, Issue 3, Pages 288-299 doi: 10.1007/s11708-013-0265-7

Abstract: The unexpected failure of generator step-up (GSU) transformer is especially a major disturbance in theThe healthy state of the GSU transformer has to be ensured to minimize the loss of power generation.As the predication related to failure of a GSU transformer is associated with some uncertainties, a fuzzyemployed in this paper along with actual field data and case studies for the well-being analysis of GSUtransformer.

Keywords： generator step-up (GSU) transformer well-being analysis dissolved gases in oil analysis (DGA) tan delta

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Application of Accessory DC Sources in GasolineInverter Generator Set

Wan Jianru,Niu Liang,Liu Jianhua,Mou Jiangfeng,Yu Xiaohong

Strategic Study of CAE 2007, Volume 9, Issue 4, Pages 31-34

Abstract:

With the aim of providing low DC sources in gasoline inverter generatorOn the basis of design principle of high frequency transformer, an accessory power supply (15W active

Keywords： gasoline inverter generator set DC accessory power supply three-terminal off-line PWMswitch high frequencytransformer

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Reversible data hiding using a transformer predictor and an adaptive embedding strategy Research Article

Linna ZHOU, Zhigao LU, Weike YOU, Xiaofei FANG,zhoulinna@bupt.edu.cn,luchen@uir.edu.cn,ywk@bupt.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 8, Pages 1143-1155 doi: 10.1631/FITEE.2300041

Abstract: In the field of (RDH), designing a high-precision predictor to reduce the embedding distortion and developing an effective embedding strategy to minimize the distortion caused by embedding information are the two most critical aspects. In this paper, we propose a new RDH method, including a predictor based on a and a novel embedding strategy with multiple embedding rules. In the predictor part, we first design a -based predictor. Then, we propose an image division method to divide the image into four parts, which can use more pixels as context. Compared with other predictors, the -based predictor can extend the range of pixels for prediction from neighboring pixels to global ones, making it more accurate in reducing the embedding distortion. In the embedding strategy part, we first propose a complexity measurement with pixels in the target blocks. Then, we develop an improved prediction error ordering rule. Finally, we provide an embedding strategy including multiple embedding rules for the first time. The proposed RDH method can effectively reduce the distortion and provide satisfactory results in improving the visual quality of data-hidden images, and experimental results show that the performance of our RDH method is leading the field.

Keywords： Reversible data hiding Transformer Adaptive embedding strategy

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Design of hydraulic resonance of pulsed water - jet

Pu Jianing,Chen Ming

Strategic Study of CAE 2009, Volume 11, Issue 2, Pages 36-42

Abstract:

By setting a sinusoidal pulsed flow generator and an air chamber at thewith characteristics finite difference equations of hydraulic transient and solved by variable time stepThe sinusoidal pulsed flow generator is composed of a constant discharge pump and a piston cylinder fluctuating

Keywords： pulsed water- jet hydraulic resonance method of characteristics variable time step method Matlab direct search algorithm sinusoidal pulsed flow generator

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Structure controlling and process scale-up in the fabrication of nanomaterials

Chunzhong LI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1, Pages 18-25 doi: 10.1007/s11705-009-0305-3

Abstract: The research on process engineering and scale-up will be very important for the commercial production

Keywords： scale-up significant commercial electroanalytical engineering laboratory

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Analysis of flow over backward facing step with transition

Dwarikanath RATHA,Arindam SARKAR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1, Pages 71-81 doi: 10.1007/s11709-014-0270-x

Abstract: The flow of air over a backward facing step has been investigated numerically using FLUENT.Flow simulation has been carried out in a backward facing step having an expansion ratio (ratio of theheight before and after the step) of 1:1.94 and the results obtained are compared with the publishedThe primary reattachment length at the bottom wall downstream of the step is minimum for the step withround edged transition and maximum for the step with a vertical drop transition.

Keywords： Reattachment length backward facing step transition flow separation k-? model

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Torque characteristics in a large permanent magnet synchronous generator with stator radial ventilating Article

He HAO,Wei-zhong FEI,Dong-min MIAO,Meng-jia JIN,Jian-xin SHEN

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 8, Pages 814-824 doi: 10.1631/FITEE.1500238

Abstract: characteristics using two-dimensional finite element analysis (FEA) in a permanent magnet synchronous generatorThe rotor step skewing technique was then employed to suppress the impacts of mechanical tolerances andwas used to evaluate accurately the overall effects of stator radial ventilating air ducts and rotor stepcharacteristics, such as torque pulsation and average torque in the machine with and without rotor stepFurthermore, the torque ripple of the machine under certain load conditions may even be increased by rotor step

Keywords： Permanent magnet synchronous generator (PMSG) Radial ventilating air duct Torque ripple Step skewing

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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 (SSFCLcontrol the fault current, a series RLC branch is connected to the secondary side of an isolation series transformerswitch (insulated-gate bipolar transistor, IGBT) and L remains connected to the secondary side of the transformer

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

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BUEES: a bottom-up event extraction system

Xiao DING,Bing QIN,Ting LIU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7, Pages 541-552 doi: 10.1631/FITEE.1400405

Abstract: In this paper, we present BUEES, a bottom-up event extraction system, which extracts events from the

Keywords： Event extraction Unsupervised learning Bottom-up

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One-step synthesis of recoverable CuCo

Tongzhou Lu, Yongzheng Zhang, Chun Cheng, Yanbin Wang, Yongming Zhu

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4, Pages 595-604 doi: 10.1007/s11705-019-1818-z

Abstract: A facile one-step hydrothermal method has been adopted to directly synthesize the CuCo S material on

Keywords： copper cobalt sulfide recoverability one-step hydrothermal method anode material Li-ion battery

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Noise control technology for generator sets in enclosures

ZHANG Nailong, YANG Wentong, FEI Renyuan

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4, Pages 377-384 doi: 10.1007/s11465-008-0051-0

Abstract: The health and life of human beings are affected by loud noise from high power generator sets.

Keywords： equipment generator sound-attenuated enclosure convenient Enclosure development

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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:

A new type of traction drive system consisting of solid-state traction transformer (SSTT), inverter

Keywords： solid-state traction transformer high-voltage cascaded rectifier LLC resonant converter synchronous rotating

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On Step by Step Method in Developing Aero-Engines

Wen Junfeng

Strategic Study of CAE 2000, Volume 2, Issue 3, Pages 23-26

Abstract: The regularity and importance of the mode of step by step development are discussed and justified with

Keywords： aero-engine ways to develop aero-engines step by step method

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Working Up Green, and Living Up Green

Ji-shan He

Frontiers of Engineering Management 2014, Volume 1, Issue 1, Pages 2-2 doi: 10.15302/J-FEM-2014002

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ApipelinedReed-Solomon decoder based on a modified step-by-step algorithm Article

Xing-ru PENG,Wei ZHANG,Yan-yan LIU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 9, Pages 954-961 doi: 10.1631/FITEE.1500303

Abstract: propose a pipelined Reed-Solomon (RS) decoder for an ultra-wideband system using a modified stepby-stepTo reduce the complexity, the modified step-by-step algorithm merges two cases of the original algorithmThe area of the proposed decoder is 11.3% less than that of the previous step-by-step decoder with a

Keywords： Reed-Solomon codes Step-by-step algorithm Ultra-wideband Pipelined structure