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8/2/2019 Micro Turbine Based Distribution Enegry Sources
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8/2/2019 Micro Turbine Based Distribution Enegry Sources
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Nowadays there is a great interest for the use ofmicroturbines as sources of distributed generation,
particularly in areas where demand is both
electricity and heat. In these areas microturbines
reach very high efficiency rates.
This project deals with the theory, modeling and
simulation, mathematical analyses and analysis of
load following behavior of a micro turbine (MT) asa distributed energy resource.
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In this project, we describe the modelingand simulation of an MTgenerator (MTG)system consisting of an MT coupled withan SG followed by its load following
performance analysis. We have analyzed theperformance in islanded connected mode.Simulation is done in MATLABSimulinkplatform
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DERs are a variety of small scale
modular distributed generation
technologies that can be Combined with
energy management and storage
systems.
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improves the performance and reliability ofpower system.
low-cost energy
increase energy efficiency reduce transmission and distribution (T&D)
losses
improve overall power quality.
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The term Distributed or Distributed Generationrefers to any electric power production technology
that is integrated within distribution systems,
close to the point of use.
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DISTRIBUTED GENERATION TECHNOLOGIES
Micro turbine
Fuel cells
Photovoltaic cells Solar thermal
Wind
Small reciprocating engines
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GAS TURBINE:
This is rotating engine that extracts energyfrom a flow of combustion gases that resultfrom the ignition of compressed air and fuel.
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Micro turbine:
These are small and High speed gas turbines.
The output of the MTs range from around 25-300kw.
Micro turbines usually implemented therecuperated systems i.e., heat exchanger.
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MICRO TURBINE:
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Split-shaft
Single shaft
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A number of micro turbines generator haverecently been announced as currentlycommercially available for sale to customerssuch as end users, utilities and energy service
provides.
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Figure 4.3.Capstone 28 kW MTG
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MT model.
MICROTURBINE MODEL
TurbineAlternatorRecuperatorPower electronicsControl and communications
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System under normal conditionsOmission of recuperator model
Omission of temperature and accelerationcontrol models
Omission of governor model.
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CONTROLLER MODEL:
As the main emphasis is on active power control, therefore the entire control system is simplified
as an active power proportionalintegral (PI) control function.
The controlled active power is applied to the turbine. Active power control is represented as a
conventional PI controller, as following fig.
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TURBINE MODEL
Block diagram of prime-mover turbine model
The turbine or prime mover model for GAST model consists of two fuel systemsand a temperature control feedback. However, the temperature control feedback
has been eliminated in this project.
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