Micro Turbine Based Distribution Enegry Sources

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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Documents

Micro Turbine Based Distribution Enegry Sources