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Research and Application of V/F-based Intelligent Multiplex Data-collecting System & Serial Communication

Jia Guixi,Li Hongfeng,Qi Wei

Strategic Study of CAE 2004, Volume 6, Issue 11,   Pages 58-62

Abstract: It uses AD620 amplifier to magnify signals, LM331 voltage-frequency transformer to transform electricity

Keywords： voltage-frequency transformer LM331     Visual Basic6.0     serial communication    

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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), inverterimproving efficiency and grid-side power quality, an efficient SSTT optimized topology combining high-voltagecascaded rectifiers with high-power high-frequency LLC resonant converter is proposed.system, the mathematical model of secondary power transfer is built, and the mechanism of pulsating voltageresulting in beat frequency of LLC resonant converter is revealed, so as to design optimum matching

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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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 systemfrequency.In this paper, simulation modeling of the system frequency was conducted of an interconnected power system

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

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Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 146-149 doi: 10.1007/s11465-013-0260-z

Abstract:

To predict more precisely the frequency of force-balanced micro accelerometer with different biasvoltages, the effects of bias voltages on error sensitivity of frequency is studied.The resonance frequency of accelerometer under closed loop control is derived according to its operationand DC bias voltage on sensitivity, respectively.of accelerometer with no need to consider the influence of bias voltage.

Keywords： Micro-Electro-Mechanical Systems (MEMS)     micro accelerometer     force-balanced micro accelerometer     frequency    

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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 transformerThen, 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 voltage

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

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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 theThe MPPT tracks the actual variable DC link voltage while deriving the maximum power from the solar PVarray, 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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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 GSU transformer

Keywords： generator step-up (GSU) transformer     well-being analysis     dissolved gases in oil analysis (DGA)     tan delta(TD)     sweep frequency response analysis (SFRA)     fuzzy inference system (FIS)    

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Energy-aware scheduling with reconstruction and frequency equalization on heterogeneous systems

Yong-xing LIU,Ken-li LI,Zhuo TANG,Ke-qin LI

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7,   Pages 519-531 doi: 10.1631/FITEE.1400399

Abstract: In this paper, we propose an energy-aware scheduling algorithm with equalized frequency, called EASEFFinally, it adopts a progressive way to equalize the frequency of tasks to reduce the total energy consumption

Keywords： Directed acyclic graph     Dynamic voltage scaling     Energy aware     Heterogeneous systems     Task scheduling    

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A novel algorithm for frequency dependent modeling of ferrite ring and its optimum design to study VFTO

Mehrdad MAJIDI, Hamid JAVADI, Moein MANBACHI

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 90-100 doi: 10.1007/s11708-013-0286-2

Abstract: The main advantage of this paper is its new proposed algorithm according to the ferrite ring frequency

Keywords： comsol multiphysics     EMTP-RV     ferrite ring     gas insulated substations (GIS)     transient over-voltage     insulation    

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Interaction behavior and load sharing pattern of piled raft using nonlinear regression and LM algorithm-based

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1181-1198 doi: 10.1007/s11709-021-0744-6

Abstract: ANN models are prepared with Levenberg–Marquardt (LM) algorithm for load sharing and interaction factors

Keywords： interaction     load sharing ratio     piled raft     nonlinear regression     artificial neural network    

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Analysis and design of transformer-based CMOS ultra-wideband millimeter-wave circuits for wireless applications Review Articles

Yi-ming YU, Kai KANG

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 97-115 doi: 10.1631/FITEE.1900491

Abstract: In this paper, four transformer-based ultra-wideband mm-Wave circuits demonstrated in CMOS technologiesFirst, we introduce a mm-Wave low-noise amplifier with transformer-based Gm-boosting and pole-tuninginjection-current-boosting tech-nique which can significantly increase the locking range of mm-Wave injection-locked frequencyBased on the injection- locked principle, we also discuss an ultra-wideband mm-Wave divider with the transformer-basedFinally, an E-band up-conversion mixer is presented; using the two-path transconductance stage and transformer-based

Keywords： CMOS     Millimeter-wave (mm-Wave)     Ultra-wideband     Transformer     Low-noise amplifier     Injection-locked fre-quencytripler     Injection-locked frequency divider     Mixer    

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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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A Cell Condition-Sensitive Frequency Segmentation Method Based on the Sub-Band Instantaneous Energy Spectrumof Aluminum Electrolysis Cell Voltage Article

Zhaohui Zeng, Weihua Gui, Xiaofang Chen, Yongfang Xie, Hongliang Zhang, Yubo Sun

Engineering 2021, Volume 7, Issue 9,   Pages 1282-1292 doi: 10.1016/j.eng.2020.11.012

Abstract:

Cell voltage is a widely used signal that can be measured online from an industrial aluminum electrolysisIn this paper, the frequency segmentation of cell voltage is used as the basis for designing filtersBased on the qualitative analysis of the cell voltage, the sub-band instantaneous energy spectrum (SIEPbands of the cell voltage under various cell conditions.band within the effective frequency band of the cell voltage.

Keywords： Sub-band instantaneous energy spectrum     Cell condition-sensitive frequency band     Frequency segmentation    

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A new variable-mode control strategy for LLC resonant converters operating in a wide input voltage range Article

Hui-pin LIN,Xiao-guang JIN,Liang XIE,Jin HU,Zheng-yu LU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 3,   Pages 410-422 doi: 10.1631/FITEE.1600029

Abstract: variable-mode control strategy that is applicable for LLC resonant converters operating in a wide input voltageadvantages from full-bridge LLC resonant converters, half-bridge LLC resonant converters, variable-frequencyWhen the input voltage is very low, it works in a full-bridge circuit and variable frequency mode (FB_VFWhen the input voltage rises to a certain level, it shifts to a full-bridge circuit and phase-shiftingWhen the input voltage further increases, it shifts into a half-bridge circuit and variable frequency

Keywords： LLC     Full bridge     Half bridge     Variable frequency     Phase shift     Wide input voltage range    

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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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Title Author Date Type Operation

Research and Application of V/F-based Intelligent Multiplex Data-collecting System & Serial Communication

Jia Guixi,Li Hongfeng,Qi Wei

Journal Article

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

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

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

Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

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

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

Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR

Journal Article

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

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

Journal Article

Energy-aware scheduling with reconstruction and frequency equalization on heterogeneous systems

Yong-xing LIU,Ken-li LI,Zhuo TANG,Ke-qin LI

Journal Article

A novel algorithm for frequency dependent modeling of ferrite ring and its optimum design to study VFTO

Mehrdad MAJIDI, Hamid JAVADI, Moein MANBACHI

Journal Article

Interaction behavior and load sharing pattern of piled raft using nonlinear regression and LM algorithm-based

Journal Article

Analysis and design of transformer-based CMOS ultra-wideband millimeter-wave circuits for wireless applications

Yi-ming YU, Kai KANG

Journal Article

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

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

Journal Article

A Cell Condition-Sensitive Frequency Segmentation Method Based on the Sub-Band Instantaneous Energy Spectrumof Aluminum Electrolysis Cell Voltage

Zhaohui Zeng, Weihua Gui, Xiaofang Chen, Yongfang Xie, Hongliang Zhang, Yubo Sun

Journal Article

A new variable-mode control strategy for LLC resonant converters operating in a wide input voltage range

Hui-pin LIN,Xiao-guang JIN,Liang XIE,Jin HU,Zheng-yu LU

Journal Article

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

Tong Zhang, Elie Paillard

Journal Article