Results 271 to 280 of about 120,988 (308)
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Grid connected mode of microgrid with reactive power compensation
2013 International Conference on Advanced Computing and Communication Systems, 2013Micro-grid is a discrete energy system consisting of distributed energy resources capable of operating in tandem or independently from the main grid. Nowadays the former one is preferred. The smart interconnection of distributed energy (DG) resources determines the quality of the power supplied by the energy source.
Viji Joseph, P. C. Thomas
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Provision of Ancillary Services of a Nanogrid in Grid Connected Mode
2019 Electric Power Quality and Supply Reliability Conference (PQ) & 2019 Symposium on Electrical Engineering and Mechatronics (SEEM), 2019In the future more and more conventional power plants, which provide ancillary services such as provision of reactive power for voltage control and primary control power (active power) for frequency control to the transmission system and thus secure the energy supply, are going to be replaced by renewable energy sources.
Jorge Helguero +2 more
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Backstepping sliding mode control of grid-connected inverters
International Journal of Electronics Letters, 2016ABSTRACTFor renewable energy systems, grid-connected inverters are widely adopted to convert energy to the power grids. However, considering the fluctuation of the renewable energy sources and the external signal disturbance on the control signal, the grid-connected inverters suffer from the bad performance of the waveform and possibility of ...
Mao, Y, Yang, Y
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Protection Coordination in Grid Connected and Islanded Mode of Microgrid
2018 IEEE 8th Power India International Conference (PIICON), 2018Protection of modern power system is facing new challenges due to presence of distributed generation (DG). Any microgrid can operate in grid connected and islanded mode. Since short circuit level in both cases is different, separate protection scheme is required. In this paper, settings of numerical directional overcurrent relay are obtained separately
Adhishree Srivastava +3 more
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Enhanced modeling and control of VSIs in microgrids operating in grid-connected mode
2012 IEEE PES Innovative Smart Grid Technologies (ISGT), 2012This paper focus on the influence of filter dynamics on the performance and stability of current control loops of three-phase, pulse-width modulation (PWM) voltage source inverters (VSIs) in grid-connected operating mode. The analysis considers the application of those devices in microgrids.
Leonardo Rese +2 more
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Performance Study of Distributed Generation System in Grid Connected/Isolated Modes
Distributed Generation & Alternative Energy Journal, 2014The Microturbine Generations (MTG) system is becoming one of the promising sources of Distributed Generation (DG) due to their fuel flexibility, reliability and power quality. Thus, the accurate model of MTG system is required for the grid connected operation and its perturbations.
Sanjeev K Nayak, D.N. Gaonkar Gaonkar
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A Simple Control Technique for Distributed Generations in Grid-Connected and Islanded Modes
2018 IEEE 27th International Symposium on Industrial Electronics (ISIE), 2018This paper presents a control technique for the seamless transfer of AC microgrid between grid-connected and islanded modes of operation. When a fault occurs in the utility grid, microgrid should be disconnected from the utility grid to protect its components and continuously supply the local loads in the microgrid. In the opposite case, if the utility
Sertac Bayhan, Haitham Abu-Rub
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Universal wind turbine working in grid-connected and island operating modes
Mathematics and Computers in Simulation, 2013In the future power system based on active distribution grid, allowing some portion to be disconnected, the concept of universal wind turbine systems may arise. This concept covers both grid-connected and island operations. This may happen if the voltage goes outside the range recommended by the standards.
Mario Rizo +4 more
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Performance analysis of grid connected and islanded mode photovoltaic system
2017 4th IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics (UPCON), 2017The demand of energy is ever increasing. At the same time our conventional energy resources are depleting faster than ever. In order to fill this supply demand gap alternative sources of energy must be exploited which may offer a cleaner and greener solution to our energy crisis.
Vishal Sharma +2 more
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Performance of wind system with battery-UC in grid connected mode
2016 IEEE 7th Power India International Conference (PIICON), 2016In this paper the performance analysis of wind system connected to grid along with battery and Ultracapacitor (UC) is presented. The variation in battery discharge rate for varying wind speed has been shown. The battery-UC combination is used to smooth wind power output and to control battery discharge rate.
A. Santhosha Kumar, D. N. Gaonkar
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