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Debashis Chatterjee - One of the best experts on this subject based on the ideXlab platform.

  • model based loss minimisation scheme for wind Solar Hybrid generation System using grid connected doubly fed induction generator
    Iet Electric Power Applications, 2016
    Co-Authors: Adikanda Parida, Debashis Chatterjee
    Abstract:

    A wind–Solar Hybrid System using doubly fed induction generator (DFIG) is described in this study. An optimum rotor current control strategy considering minimum losses of the induction generator over entire period of operation is proposed. In the proposed scheme, a Solar photovoltaic (PV) unit of appropriate capacity has been augmented with the rotor circuit of the DFIG along with a marginal battery backup to supplement the rotor power in order to maintain continuity of power generation. The active power fluctuations at the stator terminals of the DFIG can be minimised as both Solar PV and wind energy can complement each other during lean periods of either of the sources. The proposed scheme has been simulated and experimentally validated with a 2.5 kW DFIG using dSPACE CP1104 module, which produced satisfactory results.

  • An improved control scheme for grid connected doubly fed induction generator considering wind-Solar Hybrid System
    International Journal of Electrical Power and Energy Systems, 2016
    Co-Authors: Adikanda Parida, Debashis Chatterjee
    Abstract:

    This paper proposes a wind-Solar Hybrid generation scheme, along with an improved control strategy for grid connected wind energy conversion System (WECS) considering parameter uncertainty. In the proposed scheme, a photo voltaic (PV) supplemented rotor power management scheme (RPMS) has been developed for doubly fed induction generator (DFIG) with stator connected to grid. The topology of RPMS is implemented in isolation with the grid during entire period of DFIG operation. The proposed scheme ensures an increased output power delivered to the grid during low wind speeds. The DFIG control scheme require accurate information for the rotor position and speed at all operating conditions, which is estimated in the proposed method without any significant dependency on machine parameters. The control strategy proposed in this paper is implemented with a 2.5 kW DFIG using dSPACE DS1104 module with PC interface, which produced satisfactory results.

Adikanda Parida - One of the best experts on this subject based on the ideXlab platform.

  • model based loss minimisation scheme for wind Solar Hybrid generation System using grid connected doubly fed induction generator
    Iet Electric Power Applications, 2016
    Co-Authors: Adikanda Parida, Debashis Chatterjee
    Abstract:

    A wind–Solar Hybrid System using doubly fed induction generator (DFIG) is described in this study. An optimum rotor current control strategy considering minimum losses of the induction generator over entire period of operation is proposed. In the proposed scheme, a Solar photovoltaic (PV) unit of appropriate capacity has been augmented with the rotor circuit of the DFIG along with a marginal battery backup to supplement the rotor power in order to maintain continuity of power generation. The active power fluctuations at the stator terminals of the DFIG can be minimised as both Solar PV and wind energy can complement each other during lean periods of either of the sources. The proposed scheme has been simulated and experimentally validated with a 2.5 kW DFIG using dSPACE CP1104 module, which produced satisfactory results.

  • An improved control scheme for grid connected doubly fed induction generator considering wind-Solar Hybrid System
    International Journal of Electrical Power and Energy Systems, 2016
    Co-Authors: Adikanda Parida, Debashis Chatterjee
    Abstract:

    This paper proposes a wind-Solar Hybrid generation scheme, along with an improved control strategy for grid connected wind energy conversion System (WECS) considering parameter uncertainty. In the proposed scheme, a photo voltaic (PV) supplemented rotor power management scheme (RPMS) has been developed for doubly fed induction generator (DFIG) with stator connected to grid. The topology of RPMS is implemented in isolation with the grid during entire period of DFIG operation. The proposed scheme ensures an increased output power delivered to the grid during low wind speeds. The DFIG control scheme require accurate information for the rotor position and speed at all operating conditions, which is estimated in the proposed method without any significant dependency on machine parameters. The control strategy proposed in this paper is implemented with a 2.5 kW DFIG using dSPACE DS1104 module with PC interface, which produced satisfactory results.

Yu V Vorobiev - One of the best experts on this subject based on the ideXlab platform.

  • investigation of Solar Hybrid System with concentrating fresnel lens photovoltaic and thermoelectric generators
    International Journal of Energy Research, 2017
    Co-Authors: F J Willarsrodriguez, E A Chavezurbiola, P Vorobiev, Yu V Vorobiev
    Abstract:

    Summary An experimental model of a Solar Hybrid System including photovoltaic (PV) module, concentrating Fresnel lens, thermoelectric generator (TEG), and running water heat extracting unit was created and studied. The PV module used was of c-Si and TEG of Bi2Te3; the Fresnel lens (Solar concentrator) and TEG share an optical train, whereas PV module was illuminated separately with non-concentrated light. Heat extracting unit operated in thermo siphon mode. In climatic conditions of Mexico (Queretaro, 20o of North latitude, summer time), the Fresnel lens accepted 120 W of Solar radiation power, and the System generated 7.0 W of electric power and 30 W of thermal one. The discussion is made of the possible characteristics of a hypothetical Hybrid System where all its elements share the same optical train. Copyright © 2016 John Wiley & Sons, Ltd.

  • photovoltaic thermal Solar Hybrid System with bifacial pv module and transparent plane collector
    Solar Energy Materials and Solar Cells, 2007
    Co-Authors: B Roblesocampo, J Gonzalezhernandez, E Ruizvasquez, H Cansecosanchez, R C Cornejomeza, G Trapagamartinez, F J Garciarodriguez, Yu V Vorobiev
    Abstract:

    Electric energy production with photovoltaic (PV)/thermal Solar Hybrid Systems can be enhanced with the employment of a bifacial PV module. Experimental model of a PV/thermal Hybrid System with such a module was constructed and studied. To make use of both active surfaces of the bifacial PV module, we designed and made an original water-heating planar collector and a set of reflecting planes. The heat collector was transparent in the visible and near-infrared spectral regions, which makes it compatible with the PV module made of crystalline Si. The estimated overall Solar energy utilization efficiency for the System related to the direct radiation flux is of the order of 60%, with an electric efficiency of 16.4%.

  • thermal photovoltaic Solar Hybrid System for efficient Solar energy conversion
    Solar Energy, 2006
    Co-Authors: Yu V Vorobiev, P Vorobiev, J Gonzalezhernandez, L P Bulat
    Abstract:

    A Hybrid Solar System with high temperature stage is described. The System contains a radiation concentrator, a photovoltaic Solar cell and a heat engine or thermoelectric generator. Two options are discussed, one with a special PV cell construction, which uses the heat energy from the part of Solar spectrum not absorbed in the semiconductor material of the cell; the other with concentration of the whole Solar radiation on the PV cell working at high temperature and coupled to the high temperature stage. The possibilities of using semiconductor materials with different band gap values are analyzed, as well as of the different thermoelectric materials. The calculations made show that the proposed Hybrid System could be practical and efficient.

Malcolm Mcculloch - One of the best experts on this subject based on the ideXlab platform.

  • optimal short term operation of a cascaded hydro Solar Hybrid System a case study in kenya
    IEEE Transactions on Sustainable Energy, 2019
    Co-Authors: Dimitra Apostolopoulou, Malcolm Mcculloch
    Abstract:

    In this paper, we propose an optimal dispatch scheme for a cascaded Hybrid hydro-Solar power System, i.e., a hydroelectric System coupled with Solar generation, which maximizes the head levels of each dam, and minimizes the spillage effects. As a result, more water is stored in the dams to meet a given amount of energy providing more flexibility to the System in dry months. This dispatch scheme is based on the development of a simplified hydroelectric power System model, which has low computational burden and may be implemented for the short-term operation of a cascaded hydro-Solar Hybrid power System. To this end, the non-convex relationships that describe the System physical constraints, e.g., hydroelectric power output, are transformed into affine relationships; thus, reducing the computational complexity. The transformations are based on the construction of convex envelopes around bilinear functions, piecewise affine functions, and exploitation of optimization properties. We validate the proposed framework and quantify the benefits of coupling hydroelectric and Solar resources in terms of live water volume in dams and amount of Solar a System may withstand with the Tana river cascade located in Kenya through an analysis of incorporating actual System data.

Hui Hong - One of the best experts on this subject based on the ideXlab platform.

  • Proposal of a Solar-Coal Power Plant on Off-Design Operation
    2020
    Co-Authors: Yawen Zhao, Hui Hong, Hongguang Jin
    Abstract:

    In a Solar Hybrid System, the intermittent Solar radiation seriously effects the Solar-toelectricity conversion. In this paper, the energy-level mechanism between the concentrated Solar heat and the thermal cycle was discussed. The System analysis was taken on a 200 MW coal-fired power plant Hybridized with Solar heat at approximately 300 C, where the middle-temperature Solar thermal energy was used to preheat the feed water before entering the boiler. With changing Solar radiation in typical days, the Solar share, the work output and the net Solar-to-electricity efficiency of this Solar Hybrid System were evaluated. The net Solar-to-electricity efficiency would be increased by 3-7% points compared to that in a Solar-only power plant. An off-design parallel configuration of this Hybrid System was proposed, achieving the net annual Solar-to-electricity efficiency of 18%. It would expected to be an attractive approach to develop the scale-up mid-temperature Solar thermal power technology in the short and midterm

  • efficient path of distributed Solar energy System synergetically combining photovoltaics with Solar syngas fuel cell
    Energy Conversion and Management, 2018
    Co-Authors: Sanli Tang, Hui Hong, Wanjun Qu
    Abstract:

    Abstract Solar energy System is compatible with the ever-rising demands to switch from fossil fuels to renewable energy sources. Here, a concentrating Solar power System integrating photovoltaics and a Solar-syngas-fuelled solid oxide fuel cell is proposed. The concentrated sunlight is first absorbed by a spectrum selective nanofluid. The ultraviolet and infrared Solar spectrum bands of the concentrated sunlight are absorbed and converted into Solar syngas through a thermochemical reaction. The upgraded Solar syngas is converted into electricity through solid oxide fuel cell. The visible and near-infrared sunlight band un-absorbed by nanofluid is transmitted and directly converted into electricity through concentrator photovoltaics. In contrast to individual concentrator photovoltaics, this Solar Hybrid System can convert the ultraviolet and infrared Solar spectrum bands to Solar syngas instead of waste heat. The nanofluid has the function of adjusting the output electricity share between the solid oxide fuel cell and the concentrator photovoltaics. The simulation method of this type of Solar Hybrid System is described. The conversion performance of the full spectrum Solar energy converted into electricity is analysed for a typical System. In particular, the complementary feature of the spectrum response is disclosed for the selected nanofluid. The Solar-to-electricity efficiency would be expected to be approximately 31.5% at a direct normal irradiation of 900 W/m2. An optimal particle size and volume fraction of the nanofluid are provided. The results may provide a possibility of a new pathway to the high-efficiency of full Solar spectrum utilization.

  • proposal of a Solar coal power plant on off design operation
    Journal of Solar Energy Engineering-transactions of The Asme, 2013
    Co-Authors: Yawen Zhao, Hui Hong, Hongguang Jin
    Abstract:

    In a Solar Hybrid System, the intermittent Solar radiation seriously effects the Solar-to-electricity conversion. In this paper, the energy-level mechanism between the concentrated Solar heat and the thermal cycle was discussed. The System analysis was taken on a 200 MW coal-fired power plant Hybridized with Solar heat at approximately 300 degrees C, where the middle-temperature Solar thermal energy was used to preheat the feed water before entering the boiler. With changing Solar radiation in typical days, the Solar share, the work output and the net Solar-to-electricity efficiency of this Solar Hybrid System were evaluated. The net Solar-to-electricity efficiency would be increased by 3-7% points compared to that in a Solar-only power plant. An off-design parallel configuration of this Hybrid System was proposed, achieving the net annual Solar-to-electricity efficiency of 18%. It would expected to be an attractive approach to develop the scale-up mid-temperature Solar thermal power technology in the short and midterm.

  • a novel Solar Hybrid gas turbine combined cycle with inherent co2 separation using chemical looping combustion by Solar heat source
    Journal of Solar Energy Engineering-transactions of The Asme, 2006
    Co-Authors: Hui Hong, Hongguang Jin, Baiqian Liu
    Abstract:

    In this paper we propose a novel CO2-recovering Hybrid Solar-fossil combined cycle with the integration of methane-fueled chemical-looping combustion, and investigate the System with the aid of the Energy-Utilization Diagram (EUD). Chemical-looping combustion (CLC) consists of two successive reactions: first, methane fuel is oxidized by metal oxide(NiO)as an oxygen carrier (reduction of metal oxide); and second, the reduced metal (Ni) is successively oxidized by combustion air (the oxidation of metal). The oxidation of methane with NiO requires a relative low-grade thermal energy at 300 degrees C-500 degrees C. Then concentrated Solar thermal energy at approximately 450 degrees C-550 degrees C can be utilized to provide the process heat for this reaction. By coupling Solar thermal energy with methane-fueled chemical-looping combustion, the energy level of Solar thermal energy at around 450 degrees C-550 degrees C can be upgraded to the chemical energy of solid fuel Ni for better utilization of Solar energy to generate electricity. The synergistic integration of Solar thermal energy and chemical-looping combustion could make the exergy efficiency and the net Solar-to-electric efficiency of the Solar Hybrid System more than 60% and 30%, respectively, at a turbine inlet temperature (TIT) of 1200 degrees C. At the same time, this new System has an extremely important advantage of directly suppressing the environmental impact due to lack of energy penalty for CO2 recovery. Approximately 9-15 percentage points higher efficiency can be achieved compared to the conventional natural gas-fired combined cycle with CO2 separation. The results obtained here are promising and indicate that this novel Solar Hybrid combined cycle offers the new possibility Of CO2 mitigation using both green energy and fossil fuels. These results also provide a new approach for highly efficient use of Solar thermal energy to generate electricity.