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Multiple target implementation for a doubly fed induction generator based on direct power control under unbalancedand 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: presents a multiple target implementation technique for a doubly fed induction generator (DFIG) under unbalancedand distorted grid voltage based on direct power control (DPC).Based on the mathematical model of DFIG under unbalanced and distorted voltage, the proportional andDFIG experimental system is developed to validate the availability of the proposed DPC strategy under unbalancedand distorted grid voltage.

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

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Performance investigation of artificial intelligence based controller for three phase four leg shunt active filter

J. JAYACHANDRAN,R. MURALI SACHITHANANDAM

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 446-460 doi: 10.1007/s11708-015-0378-2

Abstract: choice of power quality compensator is a DSTATCOM which constitutes a three phase four leg voltage sourceThe control strategy mitigates harmonic/reactive currents, ensures balanced and sinusoidal source currentwith the supply voltage, compensates neutral current, and maintains voltage across the capacitor under unbalancedsource and load conditions.simulation results prove the efficacy of the proposed neural network based control strategy under varying source

Keywords： neutral current mitigation     total harmonic distortion (THD)     three phase four wire distribution system     unbalancedand/or distorted source    

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Power quality improvement using fuzzy logic controller for five-level shunt active power filter under distorted

Amar BENAISSA,Boualaga RABHI,Ammar MOUSSI

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 212-220 doi: 10.1007/s11708-013-0284-4

Abstract: power and eliminate harmonics drawn from a thyristor rectifier feeding an inductive load (RL) under distorted

Keywords： active power filter (APF)     harmonics isolator     distorted voltage conditions     self-tuning filters (STF)     fuzzy    

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Distributed energy management for networked microgrids in a three-phase unbalanced distribution network

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 446-446 doi: 10.1007/s11708-022-0851-7

Abstract: solve this issue, this study sought to propose distributed energy management based on a three-phase unbalancedConsidering a three-phase unbalanced distribution network, the price signals were determined per phase

Keywords： distributed optimization     energy management     networked microgrids     three-phase distribution network     distributed energy resources    

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Experimental investigation and comparative study of inter-turn short-circuits and unbalanced voltage

Fatima BABAA, Abdelmalek KHEZZAR, Mohamed el kamel OUMAAMAR

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 271-278 doi: 10.1007/s11708-013-0258-6

Abstract: A transient model for an induction machine with stator winding turn faults on a single phase is derived using reference frame transformation theory. The negative sequence component and the 3rd harmonic are often considered as accurate indicators. However, small unbalance in the supply voltage and/or in the machine structure that exists in any real system engenders the same harmonics components. In this case, it is too difficult to distinguish between the current harmonics due to the supply voltage and those originated by inter-turn short-circuit faults. For that, to have the correct diagnosis and to increase the sensitivity and the reliability of the diagnostic system, it is crucial to provide the relationship between the inter-turn short-circuits in the stator winding and the supply voltage imbalance through an accurate mathematical model and via a series of experimental essays.

Keywords： induction machines     fault indicator     inter-turn short-circuit fault     unbalance supply voltage    

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switched fractional controller for performance improvement of single phase active power filter under unbalanced

H. AFGHOUL,F. KRIM,D. CHIKOUCHE,A. BEDDAR

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 203-212 doi: 10.1007/s11708-015-0381-7

Abstract: A novel controller is proposed to regulate the DC-link voltage of a single phase active power filter (SPAPF). The proposed switched fractional controller (SFC) consists of a conventional PI controller, a fractional order PI (FO-PI) controller and a decision maker that switches between them. Commonly, the conventional PI controller is used in regulation loops due to its advantages in steady-state but it is limited in transient state. On the other hand, the FO-PI controller overcomes these drawbacks but it causes dramatic degradation in control performances in steady-state because of the fractional calculus theory and the approximation method used to implement this kind of controller. Thus, the purpose of this paper is to switch to the PI controller in steady-state to obtain the best power quality and to switch to the FO-PI controller when external disturbances are detected to guarantee a fast transient state. To investigate the efficiency and accuracy of the SFC considering all robustness tests, an experimental setup has been established. The results of the SFC fulfill the requirements, confirm its high performances in steady and transient states and demonstrate its feasibility and effectiveness. The experiment results have satisfied the limit specified by the IEEE harmonic standard 519.

Keywords： conventional PI controller     fractional calculus (FC)     total harmonic distortion (THD)     Oustaloup continuous approximation (OCA)     single phase active power filter (SPAPF)    

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Experimental and theoretical investigations of the lateral vibrations of an unbalanced Jeffcott rotor

Ali ALSALEH, Hamid M. SEDIGHI, Hassen M. OUAKAD

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 1024-1032 doi: 10.1007/s11709-020-0647-y

Abstract: The current work experimentally explores and then theoretically examines the lateral vibrations of an unbalanced

Keywords： rotor-dynamics     Jeffcott rotor     lateral vibrations     Lagrange method     system-equivalent stiffness     sleeve bearings     oil film induced stiffness    

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Development of source profiles and their application in source apportionment of PM

Ningning Zhang, Mazhan Zhuang, Jie Tian, Pengshan Tian, Jieru Zhang, Qiyuan Wang, Yaqing Zhou, Rujin Huang, Chongshu Zhu, Xuemin Zhang, Junji Cao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0879-1

Abstract: Local source profiles of major PM sources were developed.Source apportionment was conducted using CMB model.Local source samples were obtained from coal burning power plants, industries, motor vehicles, biomassburning, fugitive dust, and sea salt for the source apportionment studies.and the source profiles.

Keywords： PM2.5     Source profile     Source apportionment     CMB     Xiamen    

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The source and transport of bioaerosols in the air: A review

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1336-8

Abstract:

• Emission of microbe from local environments is a main source of bioaerosols

Keywords： Bioaerosols     Diffusion     Source identification     Biogeography    

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δN-stable isotope analysis of NH: An overview on analytical measurements, source sampling and its source

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1414-6

Abstract:

• Challenges in sampling of NH3 sources for d15N analysis are highlighted.

Keywords： Aerosol ammonium     Atmospheric gaseous ammonia     Isotope fingerprinting     Isotope-based source apportionment    

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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: control method for an input-series output-parallel modular grid-tied pulse-width modulation (PWM) current source

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

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DITCHES AND PONDS CAN BE THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 607-626 doi: 10.15302/J-FASE-2023517

Abstract: agroecosystems, ditches and ponds benefit the irrigation and drainage, as well as intercepting non-point sourceTo test this source-sink assumption in upland areas, this study made observations on the ecological function

Keywords： ditches     ponds     non-point source pollution     mountainous areas     nitrogen     phosphorus    

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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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Performance analysis of an air-source heat pump using an immersed water condenser

Jie JI, Huide FU, Hanfeng HE, Gang PEI,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 234-245 doi: 10.1007/s11708-009-0056-3

Abstract: A distributed model of an air-source heat pump (ASHP) system and its experimental setup using an immersedtheoretical and experimental background for ASHP system optimization and a valuable reference for a solar air-source

Keywords： air-source     heat pump     distributed model     immersed water condenser    

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An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1515-1529 doi: 10.1007/s11709-022-0887-0

Abstract: advantage of this approach is that it realizes the entire process simulation from point dislocation sourcethe FK-FEM hybrid approach can reflect the spatial variability of seismic motion and the influence of sourcesimulated after verifying the correctness of the approach and the effects of crustal velocity structure and sourcestructure on the maximum interlayer displacement angle of underground structure is 96.5% and the change of source

Keywords： source-to-structure simulation     FK-FEM hybrid approach     underground structures     point dislocation source    

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Title Author Date Type Operation

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

Heng NIAN,Yi-peng SONG

Journal Article

Performance investigation of artificial intelligence based controller for three phase four leg shunt active filter

J. JAYACHANDRAN,R. MURALI SACHITHANANDAM

Journal Article

Power quality improvement using fuzzy logic controller for five-level shunt active power filter under distorted

Amar BENAISSA,Boualaga RABHI,Ammar MOUSSI

Journal Article

Distributed energy management for networked microgrids in a three-phase unbalanced distribution network

Journal Article

Experimental investigation and comparative study of inter-turn short-circuits and unbalanced voltage

Fatima BABAA, Abdelmalek KHEZZAR, Mohamed el kamel OUMAAMAR

Journal Article

switched fractional controller for performance improvement of single phase active power filter under unbalanced

H. AFGHOUL,F. KRIM,D. CHIKOUCHE,A. BEDDAR

Journal Article

Experimental and theoretical investigations of the lateral vibrations of an unbalanced Jeffcott rotor

Ali ALSALEH, Hamid M. SEDIGHI, Hassen M. OUAKAD

Journal Article

Development of source profiles and their application in source apportionment of PM

Ningning Zhang, Mazhan Zhuang, Jie Tian, Pengshan Tian, Jieru Zhang, Qiyuan Wang, Yaqing Zhou, Rujin Huang, Chongshu Zhu, Xuemin Zhang, Junji Cao

Journal Article

The source and transport of bioaerosols in the air: A review

Journal Article

δN-stable isotope analysis of NH: An overview on analytical measurements, source sampling and its source

Journal Article

Fault tolerant control strategy for modular PWM current source inverter

Journal Article

DITCHES AND PONDS CAN BE THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND

Journal Article

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

Journal Article

Performance analysis of an air-source heat pump using an immersed water condenser

Jie JI, Huide FU, Hanfeng HE, Gang PEI,

Journal Article

An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Journal Article