Archive for the ‘Optimization’ Category

J976e: Example of Wind/PV/BESS hybrid power generation system with large-scale battery energy storage station

marzo 18, 2016 in Aerogenerador, Almacenamiento, Batería, baterías, Battery, Eólica, Eficiencia Energética, Electrónica de Potencia, Energía Eólica, Estabilidad, Fiabilidad, Generación Distribuida, National University of Engineerning, Lima, Peru, Optimización, Optimization, Panel Solar, Parque Eólico, Power Plant, Power Quality Calidad de la Energía, PV, Quality Energy, Recurso natural, Renewable Energy, Sistema Eléctrico System Electric, Sistemas Eléctricos de Potencia, Solar, Universidad Nacional de Ingeniería, Lima, Perú, Wind Power, Wind PV, Wind Turbine

Wind PV BESS hybrid power generation system with large-scale battery energy storage station

The Figure shown an example of Wind PV BESS hybrid power generation system with large-scale battery energy storage station (it is in BESS – Battery Energy Storage Station). It is used for compensation of aleatory energy production from wind turbine or PV plant. This BESS have orden of MW’s both for charge/discharge process.

Source:
Xiangjun Li, Dong Hui and Xiaokang Lai «Battery Energy Storage Station (BESS) – Based Smoothing Control of Photovoltaic (PV) and Wind Power Generation Fluctuations». IEEE Transactions on Sustainable Energy, Vol. 4, No. 2, April 2013.

Dr. Jorge Luis Mírez Tarrillo
Group of Mathematical Modeling and Numerical Simulation (GMMNS).
Universidad Nacional de Ingeniería. Lima, Perú.
E-mail: jmirez@uni.edu.pe
Website Personal: https://jorgemirez2002.wixsite.com/jorgemirez
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J956e: A block diagram of grid interconnection unit.

marzo 4, 2016 in AC Grid, Almacenamiento, Batería, baterías, Battery, Célula de Combustible, Central Solar, Centrales Eléctricas, Confiabilidad, Control, DC Microgrid, Distribuited Generation, Eólica, Eficiencia Energética, Electrónica de Potencia, Electrical Market, Energía Renovable, Energy Renewable, Generación Distribuida, Mercado, Micro-source, Microgrid, Microgrid DC, MicroGrid Eléctrica, Microred eléctrica, National University of Engineerning, Lima, Peru, Optimización, Optimization, Power Plant, Renewable Energy, Sistema Eléctrico System Electric, Smart Grid, Universidad Nacional de Ingeniería, Lima, Perú

A block diagram of grid interconnection unit

There is a significative difference storage system and electric power system interconnection unit. The microgrid usually has as high power from grid point of view that it is connected to medium voltage fine, typically 15 kV in Poland. Although the power system interconnection unit has almost the structure as storage system, its primary voltage is in range of kilovolts and is sinusoidal. So, it requires different power electronic converter. It is assumed in Poland that all devices connected to 15 kV lines have to be joined using 50 Hz transformer. Hence, the grid interconnection unit can have a structure shown in Figure.

Source:
Piotr Biczel. “Power Electronic Converters in DC Microgrid”. IEEE 5th International Conference – Workshop, Compatibility in Power Electronics, CPE 2007. Poland.

Dr. Jorge Luis Mírez Tarrillo
Group of Mathematical Modeling and Numerical Simulation (GMMNS).
Universidad Nacional de Ingeniería. Lima, Perú.
E-mail: jmirez@uni.edu.pe
Website Personal: https://jorgemirez2002.wixsite.com/jorgemirez
Facebook http://www.facebook.com/jorgemirezperu 
Linkedin https://www.linkedin.com/in/jorge-luis-mirez-tarrillo-94918423/
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MATLAB Group Admin in Facebook: https://www.facebook.com/groups/Matlab.Simulink.for.All
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J922e: Load diagram delivery of electrical power from sources in a microgrid…

febrero 3, 2016 in Aerogenerador, Almacenamiento, Batería, baterías, Battery, Celda Solar, Central Solar, Centrales Eléctricas, DC Microgrid, Distribuited Generation, Eólica, Electrical Market, Energía Eólica, Energía Eléctrica, Energía Renovable, Energía Solar, Energía Térmica, Energy Renewable, Generación Distribuida, Generador, Matlab, Mercado, Micro-source, micro-turbine, Microgrid, Microgrid DC, MicroGrid Eléctrica, Microred eléctrica, Modelamiento, Modelling, National University of Engineerning, Lima, Peru, Natural Resource, Optimización, Optimization, Panel Solar, Parque Eólico, Renewable Energy, Seguridad Energética, Simulación, Sistema Eléctrico System Electric, Sistemas Eléctricos de Potencia, Smart Grid, Solar, Solar Cell, Sustainable management, Universidad Nacional de Ingeniería, Lima, Perú, Wind Power, Wind PV, Wind Turbine

simulations load diagram electric

During operation a microgrid, sometimes; renewable energy sources and the external power grid, dispatched electric energy simultaneously. Sometimes, many sources is neccesary for supply to electric load. Also, all it, considering both economic and technical criteria. The figure represent la connection and disconnetion of sources for each state of performance of a microgrid. Too, it is applicable to other similar electric systems.

Dr. Jorge Luis Mírez Tarrillo
Group of Mathematical Modeling and Numerical Simulation (GMMNS).
Universidad Nacional de Ingeniería. Lima, Perú.
E-mail: jmirez@uni.edu.pe
Website Personal: https://jorgemirez2002.wixsite.com/jorgemirez
Facebook http://www.facebook.com/jorgemirezperu 
Linkedin https://www.linkedin.com/in/jorge-luis-mirez-tarrillo-94918423/
Scopus ID: https://www.scopus.com/authid/detail.uri?authorId=56488109800
Google Scholar: https://scholar.google.com/citations?user=_dSpp4YAAAAJ
MATLAB Group Admin in Facebook: https://www.facebook.com/groups/Matlab.Simulink.for.All
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J921e: Simulation of the accumulation of energy delivered by each source in one microgrid DC

febrero 3, 2016 in Aerogenerador, Batería, baterías, Battery, Celda Solar, Central Solar, Centrales Eléctricas, Corriente Continua, DC Microgrid, Distribuited Generation, Eólica, Electrical Market, Energía Eólica, Energía Renovable, Energía Solar, Energy Renewable, Generación Distribuida, Matlab, Mercado, Micro-source, micro-turbine, Microgrid, Microgrid DC, MicroGrid Eléctrica, Microred eléctrica, Modelamiento, Modelling, National University of Engineerning, Lima, Peru, Natural Resource, Optimización, Optimization, Panel Solar, Parque Eólico, Simulación, Sustainable management, Turbina, Turbina Eólica, Universidad Nacional de Ingeniería, Lima, Perú, Wind Power, Wind PV, Wind Turbine

energy of each source accumulate

In a microgrid, each energy source is required according to the criterion of costs and production capacity. During the operation time, accumulative energy from each source is represented in the figure. Criteria of linear optimization has been used in this modelling and simulation. This allows determining the nominal capacity and the ability to respond to sudden requests. Made on Matlab of MathWorks Inc.

Dr. Jorge Luis Mírez Tarrillo
Group of Mathematical Modeling and Numerical Simulation (GMMNS).
Universidad Nacional de Ingeniería. Lima, Perú.
E-mail: jmirez@uni.edu.pe
Website Personal: https://jorgemirez2002.wixsite.com/jorgemirez
Facebook http://www.facebook.com/jorgemirezperu 
Linkedin https://www.linkedin.com/in/jorge-luis-mirez-tarrillo-94918423/
Scopus ID: https://www.scopus.com/authid/detail.uri?authorId=56488109800
Google Scholar: https://scholar.google.com/citations?user=_dSpp4YAAAAJ
MATLAB Group Admin in Facebook: https://www.facebook.com/groups/Matlab.Simulink.for.All
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J920e: Simulation of cost in each state of normal operation microgrid

febrero 3, 2016 in DC Microgrid, Distribuited Generation, Electrical Market, Energía Eléctrica, Energía Renovable, Matlab, Microgrid, Microgrid DC, MicroGrid Eléctrica, Microred eléctrica, National University of Engineerning, Lima, Peru, Optimización, Optimization, Quality Energy, Renewable Energy, Seguridad Energética, Simulación, Universidad Nacional de Ingeniería, Lima, Perú

cost_for_state_microgrid

A microgrid operate in state stable in this simulation made on Matlab. Each state represent a determinate time (10 minutes, 15 minutes o more o less). But during this time, la Microgrid makes calculations of energy cost dispatched for each source. The imagen is the global cost of microgrid (or similar or other electric system considering all costs).  The microgrid optimizer decides in base a linear programming the connection and disconnection of each source.

Dr. Jorge Luis Mírez Tarrillo
Group of Mathematical Modeling and Numerical Simulation (GMMNS).
Universidad Nacional de Ingeniería. Lima, Perú.
E-mail: jmirez@uni.edu.pe
Website Personal: https://jorgemirez2002.wixsite.com/jorgemirez
Facebook http://www.facebook.com/jorgemirezperu 
Linkedin https://www.linkedin.com/in/jorge-luis-mirez-tarrillo-94918423/
Scopus ID: https://www.scopus.com/authid/detail.uri?authorId=56488109800
Google Scholar: https://scholar.google.com/citations?user=_dSpp4YAAAAJ
MATLAB Group Admin in Facebook: https://www.facebook.com/groups/Matlab.Simulink.for.All
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J910e: Optimum DG Penetration Level

enero 28, 2016 in DC Microgrid, Distribuited Generation, Eficiencia Energética, Electrical Market, Energía Eléctrica, Energía Renovable, Energy Renewable, Fiabilidad, Generación Distribuida, Mercado, Microgrid, Microgrid DC, MicroGrid Eléctrica, Microred eléctrica, National University of Engineerning, Lima, Peru, Natural Resource, Optimización, Optimization, Power Electronic, Power Quality Calidad de la Energía, Quality Energy, Renewable Energy, Seguridad Energética, Universidad Nacional de Ingeniería, Lima, Perú

Optimum DG Penetration for Minimum Interruption Frequency

One question that most system operators are concerned with is the optimised DG penetration level. Relationship regarding different cost models between optimum DG penetration level and interruption frequency is indicated in Figure.

Optimum micro-source penetration level is positive related with the interruption frequency without DG penetration; especially for average interruption costs, the relationship is almost linear. This relationship is important for systemplanning; as the system interruption frequency without DG penetration is generally known, the system operator is able to roughly determine of the optimum DG penetration level from reliability point of view

Dr. Jorge Luis Mírez Tarrillo
Group of Mathematical Modeling and Numerical Simulation (GMMNS).
Universidad Nacional de Ingeniería. Lima, Perú.
E-mail: jmirez@uni.edu.pe
Website Personal: https://jorgemirez2002.wixsite.com/jorgemirez
Facebook http://www.facebook.com/jorgemirezperu 
Linkedin https://www.linkedin.com/in/jorge-luis-mirez-tarrillo-94918423/
Scopus ID: https://www.scopus.com/authid/detail.uri?authorId=56488109800
Google Scholar: https://scholar.google.com/citations?user=_dSpp4YAAAAJ
MATLAB Group Admin in Facebook: https://www.facebook.com/groups/Matlab.Simulink.for.All
WhatsApp Channel/Canal: https://whatsapp.com/channel/0029VbCvpZsAYlUSz2esek2y

J904e: Example about optimization of performance of a microgrid modeling in Matlab

enero 22, 2016 in Aerogenerador, DC Microgrid, Distribuited Generation, Electrical Market, Energía Eléctrica, Energy Renewable, Matlab, Mercado, Microgrid, Microgrid DC, MicroGrid Eléctrica, Microred eléctrica, Modelamiento, Modelling, Optimización, Optimization, Panel Solar, Parque Eólico, Power Plant, PV, Renewable Energy, Simulación, Smart Grid, Solar, Universidad Nacional de Ingeniería, Lima, Perú, Wind Power, Wind Turbine

example_performance_for_optimization_microgrid

Usually the microgrid used wind turbine (wind), PV (sun), battery (batt) and load, aditional it have a PCC with electrical network external (ene). Both the technical operation as the economic operation are important during performance microgrid. In the figure I show the results of optimization process with imaginary energy prices from diferent source mentioned. In top figure is the power distribution between sources and down figure the total cost of each state. Programming linear has been used in this modelling and simulations.

Dr. Jorge Luis Mírez Tarrillo
Group of Mathematical Modeling and Numerical Simulation (GMMNS).
Universidad Nacional de Ingeniería. Lima, Perú.
E-mail: jmirez@uni.edu.pe
Website Personal: https://jorgemirez2002.wixsite.com/jorgemirez
Facebook http://www.facebook.com/jorgemirezperu 
Linkedin https://www.linkedin.com/in/jorge-luis-mirez-tarrillo-94918423/
Scopus ID: https://www.scopus.com/authid/detail.uri?authorId=56488109800
Google Scholar: https://scholar.google.com/citations?user=_dSpp4YAAAAJ
MATLAB Group Admin in Facebook: https://www.facebook.com/groups/Matlab.Simulink.for.All
WhatsApp Channel/Canal: https://whatsapp.com/channel/0029VbCvpZsAYlUSz2esek2y

J903e: First steps in optimization of microgrids

enero 22, 2016 in Microgrid, Microgrid DC, MicroGrid Eléctrica, Microred eléctrica, Optimización, Optimization

first steps in optimizing microgrids

This is first results of simulation in optimization microgrids. For variable electric load (4 states), the sources supply from diferents power plants. In a first moment, sun (blue line) and after is the wind. Other sources as battery and electrical network exterior not supply in this analysis for to get the minimum cost.

Dr. Jorge Luis Mírez Tarrillo
Group of Mathematical Modeling and Numerical Simulation (GMMNS).
Universidad Nacional de Ingeniería. Lima, Perú.
E-mail: jmirez@uni.edu.pe
Website Personal: https://jorgemirez2002.wixsite.com/jorgemirez
Facebook http://www.facebook.com/jorgemirezperu 
Linkedin https://www.linkedin.com/in/jorge-luis-mirez-tarrillo-94918423/
Scopus ID: https://www.scopus.com/authid/detail.uri?authorId=56488109800
Google Scholar: https://scholar.google.com/citations?user=_dSpp4YAAAAJ
MATLAB Group Admin in Facebook: https://www.facebook.com/groups/Matlab.Simulink.for.All
WhatsApp Channel/Canal: https://whatsapp.com/channel/0029VbCvpZsAYlUSz2esek2y

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