The Experts below are selected from a list of 96765 Experts worldwide ranked by ideXlab platform

Bernard Davat - One of the best experts on this subject based on the ideXlab platform.

  • differential flatness control approach for fuel cell solar cell Power plant with li ion battery storage device for grid independent applications
    International Symposium on Power Electronics Electrical Drives Automation and Motion, 2014
    Co-Authors: Phatiphat Thounthong, Suwat Sikkabut, Bernard Davat, Serge Pierfederici, P. Mungporn, P Tricoli, Babak Nahidmobarakeh, Luigi Piegari
    Abstract:

    A solar cell/hydrogen energy Power plant, fed by photovoltaic (PV) and fuel cell (FC) sources with a Li-ion battery (Bat) storage device and suitable for distributed generation applications, is proposed herein. The PV is used as the main source; the FC acts as a backup, feeding only the insufficiency Power (steady-state) from the PV; and the battery functions as an auxiliary source and a short-term storage system for supplying the deficiency Power (Transient and steady-state) from the PV and the FC. For high-Power applications and optimization in Power converters, four-phase parallel converters are implemented for the FC converter, the PV converter, and the battery converter, respectively. Using the non-linear estimation based on the differential flatness property for dc bus energy regulation, we propose a simple solution to the fast response and stabilization problems in the Power system. This is the main contribution of this research paper. The prototype small-scale Power plant implemented was composed of a PEMFC system (1.2 kW, 46 A [Nexa TM Ballard Power Systems]), a PV array (0.8 kW [Ekarat Solar Cell]), and a Li-ion module (11.6 Ah, 24 V [SAFT Technology]). Experimental results validate the excellent control algorithm during load cycles.

  • intelligent model based control of a standalone photovoltaic fuel cell Power plant with supercapacitor energy storage
    IEEE Transactions on Sustainable Energy, 2013
    Co-Authors: Phatiphat Thounthong, A Luksanasakul, P Koseeyaporn, Bernard Davat
    Abstract:

    A renewable energy hybrid Power plant, fed by photovoltaic (PV) and fuel cell (FC) sources with a supercapacitor (SC) storage device and suitable for distributed generation applications, is proposed herein. The PV is used as the primary source; the FC acts as a backup, feeding only the insufficiency Power (steady-state) from the PV; and the SC functions as an auxiliary source and a short-term storage system for supplying the deficiency Power (Transient and steady-state) from the PV and the FC. For high-Power applications and optimization in Power converters, four-phase parallel converters are implemented for the FC converter, the PV converter, and the SC converter, respectively. A mathematical model (reduced-order model) of the FC, PV, and SC converters is described for the control of the Power plant. Using the intelligent fuzzy logic controller based on the flatness property for dc grid voltage regulation, we propose a simple solution to the fast response and stabilization problems in the Power system. This is the key innovative contribution of this research paper. The prototype small-scale Power plant implemented was composed of a PEMFC system (1.2 kW, 46 A), a PV array (0.8 kW), and an SC module (100 F, 32 V). Experimental results validate the excellent control algorithm during load cycles.

  • control algorithm of renewable energy Power plant supplied by fuel cell solar cell supercapacitor Power source
    The International Power Electronics Conference - ECCE ASIA, 2010
    Co-Authors: Phatiphat Thounthong, Suwat Sikkabut, P Sethakul, Bernard Davat
    Abstract:

    A renewable energy hybrid Power plant, fed by photovoltaic (PV) and fuel cell (FC) sources with a supercapacitor storage device and suitable for distributed generation applications, is proposed herein. The PV is used as the main generator; the FC acts as a Power source, feeding only the insufficiency Power (steady-state) from the PV; and the supercapacitor functions as an auxiliary source for supplying the deficiency Power (Transient and steady-state) from the PV and the FC. Using the nonlinear approach based on the flatness property, we propose a simple solution to the dynamics, optimization, stabilization, and robustness problems in the hybrid Power system. This is the key innovative contribution of this research paper. The prototype small-scale Power plant studied was composed of a PEMFC system (1.2 kW), a PV array (0.8 kW), and a supercapacitor module (100 F). Experimental results in laboratory authenticate the excellent control algorithm during load cycles.

Marc Legros - One of the best experts on this subject based on the ideXlab platform.

  • extended defect change in uo2 during in situ tem annealing
    Acta Materialia, 2020
    Co-Authors: C Onofri, C Sabathier, Cedric Baumier, C Bachelet, D Drouan, Marie Gerardin, Marc Legros
    Abstract:

    Abstract Predicting the nuclear fuel microstructure at each moment of its irradiation cycle (nominal, Power Transient, accidental conditions) is a significant nuclear safety issue. For that, it is necessary to understand the impact of irradiation parameters on the microstructure. This study provides insight about the temperature effect on dislocations. In situ thermal annealing up to 1400°C on pre-irradiated polycrystalline UO2 thin foils was performed inside a TEM for the first time. The aim of the current study is to establish the kinetic and the mechanisms of thermal recovery of extended defects induced by irradiation. Whatever the initial irradiation conditions, extended defect recovery was observed around 1000-1100°C, in good agreement with literature data. Dislocation line disappear mainly by climb and dislocation loops move by pencil glide along the Burger vector directions. Defect growth by coalescence of dislocation loops is also observed.

Phatiphat Thounthong - One of the best experts on this subject based on the ideXlab platform.

  • differential flatness control approach for fuel cell solar cell Power plant with li ion battery storage device for grid independent applications
    International Symposium on Power Electronics Electrical Drives Automation and Motion, 2014
    Co-Authors: Phatiphat Thounthong, Suwat Sikkabut, Bernard Davat, Serge Pierfederici, P. Mungporn, P Tricoli, Babak Nahidmobarakeh, Luigi Piegari
    Abstract:

    A solar cell/hydrogen energy Power plant, fed by photovoltaic (PV) and fuel cell (FC) sources with a Li-ion battery (Bat) storage device and suitable for distributed generation applications, is proposed herein. The PV is used as the main source; the FC acts as a backup, feeding only the insufficiency Power (steady-state) from the PV; and the battery functions as an auxiliary source and a short-term storage system for supplying the deficiency Power (Transient and steady-state) from the PV and the FC. For high-Power applications and optimization in Power converters, four-phase parallel converters are implemented for the FC converter, the PV converter, and the battery converter, respectively. Using the non-linear estimation based on the differential flatness property for dc bus energy regulation, we propose a simple solution to the fast response and stabilization problems in the Power system. This is the main contribution of this research paper. The prototype small-scale Power plant implemented was composed of a PEMFC system (1.2 kW, 46 A [Nexa TM Ballard Power Systems]), a PV array (0.8 kW [Ekarat Solar Cell]), and a Li-ion module (11.6 Ah, 24 V [SAFT Technology]). Experimental results validate the excellent control algorithm during load cycles.

  • intelligent model based control of a standalone photovoltaic fuel cell Power plant with supercapacitor energy storage
    IEEE Transactions on Sustainable Energy, 2013
    Co-Authors: Phatiphat Thounthong, A Luksanasakul, P Koseeyaporn, Bernard Davat
    Abstract:

    A renewable energy hybrid Power plant, fed by photovoltaic (PV) and fuel cell (FC) sources with a supercapacitor (SC) storage device and suitable for distributed generation applications, is proposed herein. The PV is used as the primary source; the FC acts as a backup, feeding only the insufficiency Power (steady-state) from the PV; and the SC functions as an auxiliary source and a short-term storage system for supplying the deficiency Power (Transient and steady-state) from the PV and the FC. For high-Power applications and optimization in Power converters, four-phase parallel converters are implemented for the FC converter, the PV converter, and the SC converter, respectively. A mathematical model (reduced-order model) of the FC, PV, and SC converters is described for the control of the Power plant. Using the intelligent fuzzy logic controller based on the flatness property for dc grid voltage regulation, we propose a simple solution to the fast response and stabilization problems in the Power system. This is the key innovative contribution of this research paper. The prototype small-scale Power plant implemented was composed of a PEMFC system (1.2 kW, 46 A), a PV array (0.8 kW), and an SC module (100 F, 32 V). Experimental results validate the excellent control algorithm during load cycles.

  • control algorithm of renewable energy Power plant supplied by fuel cell solar cell supercapacitor Power source
    The International Power Electronics Conference - ECCE ASIA, 2010
    Co-Authors: Phatiphat Thounthong, Suwat Sikkabut, P Sethakul, Bernard Davat
    Abstract:

    A renewable energy hybrid Power plant, fed by photovoltaic (PV) and fuel cell (FC) sources with a supercapacitor storage device and suitable for distributed generation applications, is proposed herein. The PV is used as the main generator; the FC acts as a Power source, feeding only the insufficiency Power (steady-state) from the PV; and the supercapacitor functions as an auxiliary source for supplying the deficiency Power (Transient and steady-state) from the PV and the FC. Using the nonlinear approach based on the flatness property, we propose a simple solution to the dynamics, optimization, stabilization, and robustness problems in the hybrid Power system. This is the key innovative contribution of this research paper. The prototype small-scale Power plant studied was composed of a PEMFC system (1.2 kW), a PV array (0.8 kW), and a supercapacitor module (100 F). Experimental results in laboratory authenticate the excellent control algorithm during load cycles.

C Onofri - One of the best experts on this subject based on the ideXlab platform.

  • extended defect change in uo2 during in situ tem annealing
    Acta Materialia, 2020
    Co-Authors: C Onofri, C Sabathier, Cedric Baumier, C Bachelet, D Drouan, Marie Gerardin, Marc Legros
    Abstract:

    Abstract Predicting the nuclear fuel microstructure at each moment of its irradiation cycle (nominal, Power Transient, accidental conditions) is a significant nuclear safety issue. For that, it is necessary to understand the impact of irradiation parameters on the microstructure. This study provides insight about the temperature effect on dislocations. In situ thermal annealing up to 1400°C on pre-irradiated polycrystalline UO2 thin foils was performed inside a TEM for the first time. The aim of the current study is to establish the kinetic and the mechanisms of thermal recovery of extended defects induced by irradiation. Whatever the initial irradiation conditions, extended defect recovery was observed around 1000-1100°C, in good agreement with literature data. Dislocation line disappear mainly by climb and dislocation loops move by pencil glide along the Burger vector directions. Defect growth by coalescence of dislocation loops is also observed.

C Sabathier - One of the best experts on this subject based on the ideXlab platform.

  • extended defect change in uo2 during in situ tem annealing
    Acta Materialia, 2020
    Co-Authors: C Onofri, C Sabathier, Cedric Baumier, C Bachelet, D Drouan, Marie Gerardin, Marc Legros
    Abstract:

    Abstract Predicting the nuclear fuel microstructure at each moment of its irradiation cycle (nominal, Power Transient, accidental conditions) is a significant nuclear safety issue. For that, it is necessary to understand the impact of irradiation parameters on the microstructure. This study provides insight about the temperature effect on dislocations. In situ thermal annealing up to 1400°C on pre-irradiated polycrystalline UO2 thin foils was performed inside a TEM for the first time. The aim of the current study is to establish the kinetic and the mechanisms of thermal recovery of extended defects induced by irradiation. Whatever the initial irradiation conditions, extended defect recovery was observed around 1000-1100°C, in good agreement with literature data. Dislocation line disappear mainly by climb and dislocation loops move by pencil glide along the Burger vector directions. Defect growth by coalescence of dislocation loops is also observed.