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Transient performance comparison of grid-forming converters with different FRT control strategies

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 239-250 doi: 10.1007/s11708-022-0856-2

Abstract: Grid-forming converters (GFMs) are faced with the threat of transient inrush current and synchronizationinstability issues when subjected to grid faults.(FRT) capability to maintain safe and stable operation in grid-connected mode during grid fault periodscontrol) are introduced and transient mathematical models are established.The results will be useful for guiding the selection and design of FRT control strategies.

Keywords： grid-forming converters (GFMs)     fault ride through (FRT)     transient stability     transient inrush current    

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A comprehensive review of wind power based power system frequency regulation

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 611-634 doi: 10.1007/s11708-023-0876-6

Abstract: In addition, various existing control strategies of WP participating in frequency regulation are reviewedThe pros and cons of each control strategy are also discussed.

Keywords： frequency regulation strategies     wind turbine generators     grid-forming control     model predictive control    

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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 gridreferred to as the voltage source (VS) control.However, 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 griddominant instability mode is more related to the interactions among the WTs rather than the typical grid-wind

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

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Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 400-409 doi: 10.1007/s11708-017-0459-5

Abstract: This paper proposes a control strategy for interface of distributed energy sources into the weak gridThe controller proposed has been implemented on the PV system connected with the weak grid using the

Keywords： PV system     grid interface     feedback linearization     inverter     LCL filter    

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Simulation of grid connection and maximum power point tracking control of brushless doubly-fed generator

Hicham SERHOUD, Djilani BENATTOUS

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 380-387 doi: 10.1007/s11708-013-0252-z

Abstract: mathematical model in a common synchronous reference frame of the brushless doubly-fed generator (BDFG), the gridconnection strategy and maximum energy extraction control were both analyzed.The test results during cutting-in grid confirmed the good dynamic performance of grid synchronizationand effective power control approach for the BDFG-based variable speed wind turbines.

Keywords： brushless doubly-fed generator (BDFG)     modeling     grid connection control     back-to-back pulse-width modulation    

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Multiple target implementation for a doubly fed induction generator based on direct power control underunbalanced and distorted grid voltage

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).and harmonic sequence decomposition of grid voltage nor complicated control reference calculation isThe insensitivity of the proposed control strategy to DFIG parameter deviation is analyzed.developed to validate the availability of the proposed DPC strategy under unbalanced and distorted grid

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

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Robust control based on the Lyapunov theory of a grid-connected doubly fed induction generator

Ridha CHEIKH, Arezki MENACER, Said DRID

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 191-196 doi: 10.1007/s11708-013-0245-y

Abstract: This paper discusses the robust control of a grid-connected doubly-fed induction generator (DFIG) controlledby vector control using a nonlinear feedback linearization strategy in order to ameliorate the performancesof the control and to govern the developed stator active and reactive power in a linear and decoupledThe use of the state-all-flux induction machine model gives place to a simpler control model.So, to achieve this objective, the Lyapunov approach is used associated with a sliding mode control to

Keywords： doubly fed induction generator (DFIG)     vector control     Lyapunov function     power factor unity     active power    

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Capacity limitation of nuclear units in grid based on analysis of frequency regulation

Yiping DAI, Pan JIANG, Lin GAO, Weimin KAN, Xiaoqing XIAO, Ge JIN

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 148-154 doi: 10.1007/s11708-012-0174-1

Abstract: The increasing capacity of nuclear units in power grid poses threat to system stability and security.Based on the analysis of frequency regulation, mathematic models for nuclear units in the grid are establishedbetween different styles of frequency regulation and the allowable capacity of the nuclear units in the gridThis research can help to estimate the capacity limitation of nuclear units in the grid.

Keywords： nuclear units capacity     overspeed     primary frequency control (PFC)     second frequency control (SFC)    

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Finite element simulations of sheet metal forming under complex strain paths

CHEN Wei, YANG Jichang, WU Xiaofeng, LU Dun, GUO Weigang

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 399-403 doi: 10.1007/s11465-007-0069-8

Abstract: Fracture is a common defect in sheet metal forming and it is essentially caused by tensile instabilityThis paper analyzes some experiments and theories for building forming limit diagrams of sheet metalthis, a method that integrates the finite element simulation and experiment was used to research the formingFinally, the forming method of the rear hanger is confirmed.complex strain paths and different strain paths will have great impacts on the result of the sheet metal forming

Keywords： dangerous     forming method     different     hanger     forming    

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Performance of PI controller for control of active and reactive power in DFIG operating in a grid-connected

Azzouz TAMAARAT,Abdelhamid BENAKCHA

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 371-378 doi: 10.1007/s11708-014-0318-6

Abstract: The objective of this work is to present the modeling and control strategy of a grid connected wind powerIt will introduce the vector control, which makes it possible to control independently the active andreactive power exchanged between the stator of the generator and the grid, based on vector control conceptfor some optimization criteria (energy efficiency and the robustness of the control).interesting to play on the quality of electric power by controlling the reactive power exchanged with the grid

Keywords： wind power     doubly fed induction generator (DFIG)     vector control     active power     reactive power     maximum power    

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Application of fuzzy logic control algorithm as stator power controller of a grid-connected doubly-fed

Ridha CHEIKH, Arezki MENACER, Said DRID, Mourad TIAR

Frontiers in Energy 2013, Volume 7, Issue 1,   Pages 49-55 doi: 10.1007/s11708-012-0217-7

Abstract: This paper discusses the power outputs control of a grid-connected doubly-fed induction generator (DFIGThe DFIG structure control has a six diode rectifier and a PWM IGBT converter in order to control theSo, to supply commercially the electrical power to the grid without any problems related to power qualityrequired level, which, in this paper, is realized with an optimized fuzzy logic controller based on the gridcontrol of the stator power flow with the possibility of keeping stator power factor at a unity.

Keywords： doubly-fed induction generator (DFIG)     vector control     fuzzy logic controller     optimization     power factor    

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Robust direct power control based on the Lyapunov theory of a grid-connected brushless doubly fed induction

M. Abdelbasset MAHBOUB,Said DRID,M. A. SID,Ridha CHEIKH

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 298-307 doi: 10.1007/s11708-016-0411-0

Abstract: This paper deals with robust direct power control of a grid-connected brushless doubly-fed inductionTherefore, to achieve this objective, the Lyapunov approach is used associated with a sliding mode controlSimulation results illustrate the performances and the feasibility of the designed control.

Keywords： brushless doubly fed induction generator (BDFIG)     vector control     Lyapunov theory     power factor unity     active    

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The lean forming technology for auto sheet metal

Lin Zhongqin,Li Shuhui,Wang Wurong,Lai Xinmin

Strategic Study of CAE 2009, Volume 11, Issue 11,   Pages 22-29

Abstract:

The lean forming technology for auto sheet metal has been proposed, whichmethodology for effective drawbead force design and an experiment platform with the control of variableAiming at decreasing the forming sensitivity to variation in materials and process, a forming robustThe technical framework for auto sheet metal lean forming was constructed based on the idea of propermaterial selection, process optimization and robust control.

Keywords： auto sheet metal     lean forming     proper material selection     process optimization     robust control    

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Precision forging technology for aluminum alloy

Lei DENG, Xinyun WANG, Junsong JIN, Juchen XIA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 25-36 doi: 10.1007/s11465-018-0477-y

Abstract: metal flow forging with relief cavity, auxiliary force or vibration loading, casting-forging hybrid forming, and stamping-forging hybrid forming.controlling the forging processes and parameters or combining precision forging technologies with other forming

Keywords： precision forging     aluminum alloy     closed die forging     flow control forging     hybrid-forming technology    

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Modeling and control of photovoltaic energy conversion connected to the grid

Rebei NAJET, Ben Ghanem BELGACEM, Hasnaoui OTHMAN

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 35-46 doi: 10.1007/s11708-012-0169-y

Abstract: This paper presents modeling and control of a photovoltaic generator (PVG) connected to the grid.The electrical energy from a PVG is transferred to the grid via two static converters (DC/DC and DC/ACThe objective of the proposed control strategy is to maximize energy captured from the PVG.To control the DC/AC inverter, an intelligent system based on two structures is constructed: a currentsource control structure and a voltage source control structure.

Keywords： photovoltaic generator (PVG)     maximum power point tracker     grid-connected     static converters    

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Title Author Date Type Operation

Transient performance comparison of grid-forming converters with different FRT control strategies

Journal Article

A comprehensive review of wind power based power system frequency regulation

Journal Article

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

Journal Article

Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Journal Article

Simulation of grid connection and maximum power point tracking control of brushless doubly-fed generator

Hicham SERHOUD, Djilani BENATTOUS

Journal Article

Multiple target implementation for a doubly fed induction generator based on direct power control underunbalanced and distorted grid voltage

Heng NIAN,Yi-peng SONG

Journal Article

Robust control based on the Lyapunov theory of a grid-connected doubly fed induction generator

Ridha CHEIKH, Arezki MENACER, Said DRID

Journal Article

Capacity limitation of nuclear units in grid based on analysis of frequency regulation

Yiping DAI, Pan JIANG, Lin GAO, Weimin KAN, Xiaoqing XIAO, Ge JIN

Journal Article

Finite element simulations of sheet metal forming under complex strain paths

CHEN Wei, YANG Jichang, WU Xiaofeng, LU Dun, GUO Weigang

Journal Article

Performance of PI controller for control of active and reactive power in DFIG operating in a grid-connected

Azzouz TAMAARAT,Abdelhamid BENAKCHA

Journal Article

Application of fuzzy logic control algorithm as stator power controller of a grid-connected doubly-fed

Ridha CHEIKH, Arezki MENACER, Said DRID, Mourad TIAR

Journal Article

Robust direct power control based on the Lyapunov theory of a grid-connected brushless doubly fed induction

M. Abdelbasset MAHBOUB,Said DRID,M. A. SID,Ridha CHEIKH

Journal Article

The lean forming technology for auto sheet metal

Lin Zhongqin,Li Shuhui,Wang Wurong,Lai Xinmin

Journal Article

Precision forging technology for aluminum alloy

Lei DENG, Xinyun WANG, Junsong JIN, Juchen XIA

Journal Article

Modeling and control of photovoltaic energy conversion connected to the grid

Rebei NAJET, Ben Ghanem BELGACEM, Hasnaoui OTHMAN

Journal Article