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Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques

Salim CHENNAI,M-T BENCHOUIA

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

Abstract: efficient control scheme for unified power quality conditioner (UPQC) based on three-level neutral pointclamped (NPC) inverter using fuzzy logic techniques.The simulation results illustrate the performance of the proposed UPQC at the common connection point

Keywords： three-level neutral point clamped (NPC) inverter     unified power quality conditioner (UPQC)     current harmonics    

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A Novel PWM Method of Diode-clamped Multilevel Inverter at Low Modulation Indices

Xin Xiang,Zhang Qingfan,Hu Shunquan,Li Ruilai

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 91-96

Abstract:

Diode-clamped multilevel inverter is a kind of power converter which The paper presents a novel carrier-based PWM method to take advantage of all levels in the invertersimulation results indicate that the novel PWM strategy increases device utilization and enables the inverter

Keywords： diode-clamped inverter     carrier-based PWM     low modulation index     redundant state    

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Fundamental frequency and testing mode of complicated elastic clamped-plate vibration

QI Hongyuan, GUAN Yiduo

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 360-364 doi: 10.1007/s11465-008-0084-4

Abstract: Aimed at the modal analysis of complicated elastic clamped-plates, a trigonometric interpolation methoddetermined by analyzing the fundamental frequency; meanwhile, according to hamming testing method of multi-pointexcitation to the single-point response, and by signal processing technology and its software programming, modal parameter recognition of the elastic clamped-plate is completed.

Keywords： multi-point excitation     rectangle-plate     single-point     processing technology     trigonometric interpolation    

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Implementation of photovoltaic water pumping system with MPPT controls

Najet REBEI,Ali HMIDET,Rabiaa GAMMOUDI,Othman HASNAOUI

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 187-198 doi: 10.1007/s11708-015-0359-5

Abstract: output efficiency of a photovoltaic (PV) system, it is important to apply an efficient maximum power pointoptimum duty ratio is the input of a DC/DC boost converter which feeds a set of Moto-pump via a DC/AC inverterThe MPPT control algorithms implemented extract the maximum power point (MPP), with satisfactory performance

Keywords： photovoltaic generator (PVG)     maximum power point tracking (MPPT)     boost DC/DC converter     DC/AC inverter    

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Conformal analysis of fundamental frequency of vibration of elastic clamped plates

QI Hongyuan, ZHU Hengjun

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 429-432 doi: 10.1007/s11465-007-0073-z

Abstract: To calculate the fundamental frequency of vibration of special-shaped and elastic clamped plates, theFinally, taking ellipse elastic clamped plates as an example, the effects on fundamental frequency coefficient

Keywords： direction     theory     vibration     odd     complicated boundary    

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Application of Z-source inverter in the asynchronous motor

Zhu Hong,Zhu Longji and Xia Ruofei

Strategic Study of CAE 2014, Volume 16, Issue 3,   Pages 86-91

Abstract: the IFOC technology is used to control the size of the speed of asynchronous motor，and the Z- source inverteris used，namely putting a pair of LC network in front of the inverter main circuit，to achieve the function

Keywords： IFOC     asynchronous motor     Z-source inverter    

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Effects of Three-Dimensional Platform Stiffness and Layer Dimensions on Separation of Carcinoma Cells Article

W.G. Zhang, Z.Y. Liu, S.W. Pang

Engineering 2021, Volume 7, Issue 10,   Pages 1426-1435 doi: 10.1016/j.eng.2020.09.010

Abstract: three-dimensional (3D) biomimetic scaffold platforms were developed to separate nasopharyngeal carcinoma 43 (NPC43The migration characteristics of NPC43 and NP460 cells on the scaffold platforms revealed that NPC43NPC43 cells had filopodia-like protrusions, while NP460 cells exhibited a sheet-like morphology.Using these 3D biomimetic platforms, 89% separation efficiency of NPC43 cells from NP460 cells was achieved

Keywords： Cell separation     Cell migration     Nasopharyngeal carcinoma (NPC)     3D scaffold platform    

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Power performance of circular piezoelectric diaphragm generators

TANG Kehong, KAN Junwu, YANG Zhigang, CHENG Guangming, PENG Taijiang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 434-440 doi: 10.1007/s11465-008-0069-3

Abstract: Simply supported and clamped boundary conditions were considered.piezoelectric diaphragm generator with given dimensions tends to achieve higher output power under clamped

Keywords： clamped boundary     energy-harvesting     composite diaphragm     piezoelectric composite     maximum    

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Hybrid intelligent water drop bundled wavelet neural network to solve the islanding detection by inverter-based

Mehrdad TARAFDAR HAGH,Homayoun EBRAHIMIAN,Noradin GHADIMI

Frontiers in Energy 2015, Volume 9, Issue 1,   Pages 75-90 doi: 10.1007/s11708-014-0337-3

Abstract: In this paper, a passive neuro-wavelet based islanding detection technique for grid-connected inverter-based

Keywords： islanding detection     neuro-wavelet     intelligent water drop (IWD)     non-detection zone (NDZ)     distributed generation (DG)    

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STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 503-509 doi: 10.15302/J-FASE-2023528

Abstract:

STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT

Keywords： GREEN     AGRICULTURAL     PROMOTE     POLLUTION     SOURCE     DEVELOPMENT     POINT     STRENGTHENING     CONTROL    

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Fault tolerant control strategy for modular PWM current source inverter

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 228-238 doi: 10.1007/s11708-022-0852-6

Abstract: method for an input-series output-parallel modular grid-tied pulse-width modulation (PWM) current source inverterThis method actively offsets the neutral point of the current space vector to ensure a sinusoidal outputof the grid current, and it can achieve the upper limit power of the inverter under the condition ofproposed after analyzing the influence of the transformer ferromagnetic resonance caused by the neutral point

Keywords： current source converter (CSC)     fault-tolerant control     space vector modulation     active damping     resonance suppression     power quality    

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Vibration control efficiency of piezoelectric shunt damping system

Dan WU, Zhichun YANG, Hao SUN,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 441-446 doi: 10.1007/s11465-009-0055-4

Abstract: Four PZT patches with different sizes are bonded on the geometrical central area of four similar clamped

Keywords： piezoelectric shunt     vibration control efficiency     clamped plate     generalized electromechanical coupling    

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Trajectory planning of mobile robots using indirect solution of optimal control method in generalized point-to-point

M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 23-28 doi: 10.1007/s11465-012-0304-9

Abstract:

This paper presents an optimal control strategy for optimal trajectory planning of mobile robots by considering nonlinear dynamic model and nonholonomic constraints of the system. The nonholonomic constraints of the system are introduced by a nonintegrable set of differential equations which represent kinematic restriction on the motion. The Lagrange’s principle is employed to derive the nonlinear equations of the system. Then, the optimal path planning of the mobile robot is formulated as an optimal control problem. To set up the problem, the nonlinear equations of the system are assumed as constraints, and a minimum energy objective function is defined. To solve the problem, an indirect solution of the optimal control method is employed, and conditions of the optimality derived as a set of coupled nonlinear differential equations. The optimality equations are solved numerically, and various simulations are performed for a nonholonomic mobile robot to illustrate effectiveness of the proposed method.

Keywords： mobile robot     trajectory planning     nonlinear dynamic     optimal control    

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Toward autonomous mining: design and development of an unmanned electric shovel via point cloud-based

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0686-2

Abstract: Initially, the point cloud of the material surface is collected and reconstructed by polynomial responseThen, by establishing the dynamical model of the UES, a point to point (PTP) excavation trajectory planning

Keywords： autonomous excavation     unmanned electric shovel     point cloud     excavation trajectory planning    

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Room temperature liquid metal: its melting point, dominating mechanism and applications

Junheng FU, Chenglin ZHANG, Tianying LIU, Jing LIU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 81-104 doi: 10.1007/s11708-019-0653-8

Abstract: The melting point is a typical parameter to describe the peculiarity of LM, and a pivotal factor to considerTherefore, the theoretical exploration into the melting point of LM is an essential issue, which can

Keywords： melting point     liquid metal     crystal     thermodynamics     molecular dynamics    

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Title Author Date Type Operation

Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques

Salim CHENNAI,M-T BENCHOUIA

Journal Article

A Novel PWM Method of Diode-clamped Multilevel Inverter at Low Modulation Indices

Xin Xiang,Zhang Qingfan,Hu Shunquan,Li Ruilai

Journal Article

Fundamental frequency and testing mode of complicated elastic clamped-plate vibration

QI Hongyuan, GUAN Yiduo

Journal Article

Implementation of photovoltaic water pumping system with MPPT controls

Najet REBEI,Ali HMIDET,Rabiaa GAMMOUDI,Othman HASNAOUI

Journal Article

Conformal analysis of fundamental frequency of vibration of elastic clamped plates

QI Hongyuan, ZHU Hengjun

Journal Article

Application of Z-source inverter in the asynchronous motor

Zhu Hong,Zhu Longji and Xia Ruofei

Journal Article

Effects of Three-Dimensional Platform Stiffness and Layer Dimensions on Separation of Carcinoma Cells

W.G. Zhang, Z.Y. Liu, S.W. Pang

Journal Article

Power performance of circular piezoelectric diaphragm generators

TANG Kehong, KAN Junwu, YANG Zhigang, CHENG Guangming, PENG Taijiang

Journal Article

Hybrid intelligent water drop bundled wavelet neural network to solve the islanding detection by inverter-based

Mehrdad TARAFDAR HAGH,Homayoun EBRAHIMIAN,Noradin GHADIMI

Journal Article

STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT

Journal Article

Fault tolerant control strategy for modular PWM current source inverter

Journal Article

Vibration control efficiency of piezoelectric shunt damping system

Dan WU, Zhichun YANG, Hao SUN,

Journal Article

Trajectory planning of mobile robots using indirect solution of optimal control method in generalized point-to-point

M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY

Journal Article

Toward autonomous mining: design and development of an unmanned electric shovel via point cloud-based

Journal Article

Room temperature liquid metal: its melting point, dominating mechanism and applications

Junheng FU, Chenglin ZHANG, Tianying LIU, Jing LIU

Journal Article