Renewable Energy Grid Integration
and Distributed Generation
Specialisation Diploma
4th
edition
Course 2013/2014
Index
Course 2013-2014
Introduction
_______________________
3
________________________
4
Methodology _______________________
5
Information ________________________
7
Objectives
Teaching staff _______________________ 8
Program
__________________________ 10
regulates transport activities, distribution and commercialization, supply and installation authorization procedures.
Another distributed networks advantage is that it will
enable to take into account each territory specific features, making it easier to optimise the system and to improve
its efficiency, increasing the grid’s security, in the way that
Next academic year 2013-2014 the fourth edition of the
Specialisation in “Renewable energy grid integration and
distributed generation” will be taught by the University
of Zaragoza, promoted by CIRCE. This course can be
found as a specialisation of the European master offered
by EUREC (European Association of Renewable Energy
Research Centres) given by a consortium of European
universities.
The course is given entirely in English, and it is divided
in 6 subjects plus a compulsory project related to the
specialisation, which in sum account 30 credits.
Its main objective is to offer a complete education, not
just in new renewable generation technologies, but also in
the smart grids complex world, with concepts like grid stability, grids quality, and supply guarantee; in present problems and solutions for renewable energy integration into
the grid; and in electric markets, laws and standardization.
a failure in a generator will not have disastrous effects on
the global system, and could be assumed faster.
Distributed generation systems feasibility needs a
smart grid with continuous information about its installations available, allowing to solve possible problems
RE Grid Integration and Distributed Generation
Introduction
affecting the optimal generation point. This smart grid
should contribute with reliability, an automatic fault clearing system, energy management and a system to fix tariffs on electricity in time.
From the point of view of design, the smart grid requires the automation and communication technological
development in order to incorporate distributed generation and storage into the grid. The complexity in the
secondary distribution grid will increase, opening new
paths for research and industrial development and innovation, which once the technology is controlled, will have
worldwide expansion opportunities.
The contents of the course are highly technical, and
the focus is practical, including the direct participation of
facilities and other entities involved in the course topics.
he technology development in renewable energy and
storage systems will suppose a revolution compared to
the present electric system, losing some of the present
dependency on big far-from-consumption- points centrals, that means huge maintenance costs and losses
related to far-distances electricity transportation, beside
the required voltage transformation. Next-to-consumption-points generation should help to improve the perception of quality electricity service by consumers. The
importance of this quality service was already expressed
in the Spanish laws in RD 1955/2000 the 1st of December, as it has been done all around Europe. This law
3
RE Grid Integration and Distributed Generation
Objetives
Specific objectives
After the completion of the course our students are expected to acquire a wide vision of the electric grid and
the following knowledge and skills:
 Development of projects and studies for installations feasibility or renewable generation integra-
The course has the aim of encouraging the spread of
tion into the present grid and the future distribu-
technologies for distributed grids and the integration of
ted generation grid.
renewable energies in our borders, making special effort
in knowledge transfer between enterprises and resear-
 Knowledge of the potential uses that electronic
chers, and contributing to a sustainable development from
and communication applications bring to distribu-
the environmental, economical and social point of view.
ted generation. Analyse of development possibilities in global and local scale.
In order to achieve our goals a large sum of companies and institutions support this initiative that is expec-
 Regulations in renewable energies and distribu-
ted to stay close to reality and needs of our community.
ted generation and how to apply laws and stan-
From the University of Zaragoza, the achievement of the-
dards referred to the grid connexion.
se goals has been seen as possible and it is starting from
the beginning: professional training in the area.
 Apply and develop R&D&i projects and/or make
investments in this sector, knowing the main en-
A deep knowledge in distributed generation and renewable energies integration technology for its use in
the energy sector is seen as a general goal in the course.
4
terprises, working groups and associations to collaborate with.
 Electric systems modelling for simulation in dynamic regime
 Transient regime simulation studies
Micro Grids (6h)
 Communication
 Load control
Teaching will be based on lectures, laboratories, conferences, tutorials and visits given through all the subjects.
 Generation control
Students will have access to the computer laboratories
at any the time the laboratory room is free of any course.
Sessions will be scheduled Monday to Thursday afternoon and Friday morning. Each session will have an
So they will be able to develop their tasks with special
ICT facilities that will be installed there.
approximate duration of 4 hours. The students will be
provided with all necessary teaching materials.
RE Grid Integration and Distributed Generation
Methodology
Other laboratories that students will visit and use, under supervision, can be seen in the following pictures:
Part of the course will be supported by practical trai-
Renewable Energies Integration Laboratory
ning that will be given in the computer laboratories, combining the above explained theory with computer simulations and programming.
Practical training:
AC/DC Drives Control (4h)
 Electronic conversion systems application to renewable energy generation systems
 Basic schemes and functional advantages
 Wind Power and Photovoltaic Power applications
Applications and power system
simulation using PSCAD/EMTDC (3h)
 Modelling of thyristor-based static Var compensator
Mobile laboratory for voltage dips
test in wind turbines (MEGHA)
 Modelling of GTO-Based
 Modelling of VSC
 Based HVDC Link
 Modelling and performance of SSCC in wind
energy application
Electric Systems Modelling (21h)
 Electric systems modelling for steady state regime studies
 Steady state simulation studies. Load flux
 Steady state simulation studies. Short-circuit
5
RE Grid Integration and Distributed Generation
Electrical metrology laboratory for calibration and testing
ICT facilities
 Internet and software tools:
At the computer laboratories, students will have
access to internet and software tools as:
– PS-CAD
– DigSILENT
– CAPE
– PSS/E
– Transview
– Matlab
– Office
 Moodle application::
Every student will be enrolled in the unizar-moodle application, where they will find updated information about the course, additional materials,
recommended bibliography and upcoming events.
Furthermore they will be able to participate in fo-
Electrical protection laboratory
rums with other students and lecturers.
In the following picture a general view of the moodle structure can be seen.
6
To achieve the learning outcomes the students are
suppose to complete their training with projects, practical work and self-study. Students’ personal work will
have the support of the Moodle application. Where subjects are activated as the master goes on. Each student
will have a username and its password to access at any
time on-site lesson’s documents or additional documen-
Requirements
This course is basically meant for the electric sector
tation. The students will have as well, via the Unizar web,
access to magazines and scientific and technique catalogues of CIRCE Foundation.
professional training, from electric enterprises or organization managers and technicians, to recent graduates
Course duration and schedule
from technical disciplines that want to orient its career
in the sector.
The course runs from February to June. Lectures, labo-
RE Grid Integration and Distributed Generation
Information
ratory hours and activities will be scheduled Monday to
The course is given entirely in English, and it will be
essential for students a good English knowledge, though
Thursday afternoon, and Friday morning, though in some
special occasion this could be changed.
no certificates or level tests will be asked for.
Place
Number of students
The course facilities are held in the University of Zaragoza and CIRCE Foundation inside the Campus “Río
To maintain the quality standards this course has a maxi-
Ebro”, where there are also computer facilities for prac-
mum of 25 students. There exists as well the requisite of
a minimum number of students for the course to be held.
Material resources
tice lessons.
Contact details
Miguel García-Gracia / Laura Giménez
All necessary teaching materials will be provided to students at the beginning of each subject in order to help
Tel.: +34 976 761 923
e-mail: lauragdu@unizar.es
them follow the lessons.
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RE Grid Integration and Distributed Generation
Teaching staff
Quiñonez Varela, Gustavo
Acciona
Ribot Vallejo, Jorge
REE
Simón Romeo, Jesús
Fundación del Hidrógeno en Aragón
Viñao Sanz, Eduardo
Endesa
Enterprise and organizations
Alcaine Baquedano, Carlos
CIRCE Fundation
Endesa
Acerete Halli, Rubén
Alonso Sadaba, Oscar
Alonso Herranz, Adrián David
Universidad Pública de Navarra
Aranda Usón, Juan Antonio
Álvarez-Cuevas Figuerola, Felipe
Borroy Vicente, Samuel
Endesa
Bruna Romero, Jorge
Aso Aguarta, Ismael
Giménez de Urtasun, Laura
McPhy
Chacón Guadalix, Joaquín José
JOFEMAR
Corbeira Graell, Laura
Endesa
Maraver de Lemus, Daniel
Martínez Carrasco, Eduardo
Ortego Bielsa, Abel
Sebastián Nogués, Fernando
Watson, David
De la Torre Rodriguez, Miguel
REE
Díaz García, Agustín
Zaragoza University
REE
Fernández González, José Luis
REE
Goraj, Maciej
Oyarbide Usabiaga, Estanislao
Electrical Engineering
ARTECHE
Comech Moreno, Mª Paz
Izquierdo Armesto, Carlos
García Gracía, Miguel
REE
Llombart Estopiñán, Andrés
Khodr, Hussein
Melero Estela, Julio Javier
Associate Professor at Qassim University, Saudi Arabia
Sallán Arasanz, Jesús
Larrén Arconada, Aitor
Sanz Osorio, José Francisco
FORES
Villén Martínez, Mª Teresa
Lasaosa Escuer, Fernando
Yusta Loyo, José Mª
FORES
Martín Muñoz, Pablo
REE
Martínez Villanueva, Sergio
REE
Morales Martínez, Ana
DIGSILENT IBÉRICA
Ordiales Botija, Miguel
REE
Puértolas , Emilio
Riegos del Alto Aragón
8
Electronics and Communications Engineering
Mechanical Engineering
Uche Marcuello, Javier
ACCIONA
FORES
Technological company focussed on renewable energy
systems optimization, providing efficiency and safety. Crea-
The energy division of the ACCIONA Group is a world
ted in 2010 as a spin-off of CIRCE
leader in the field of renewable energy sources. It takes
on the mission of demonstrating the technical and economic viability of a new energy model based on criteria
Foundation for the development
of new hydrogen technologies in Aragon
of sustainability. ACCIONA Energy has 20 years’ experience in the sector. It is present in seven technologies,
has operations in 14 countries, and deploys its activity
throughout the value chain. ACCIONA Wind power is a
global leader in the development, construction, operation
and maintenance of wind power facilities, with over 15
years’ experience.
Spanish National Hydrogen Centre
Is a new scientific research and technology development
facility designed to promote hydrogen introduction as
an energy carrier and storage system using renewable
energies as a native energy resource.
This Foundation was promoted by the Government of
Aragon with the aim of carrying out the organization,
management and execution of a wide range of actions
with the purpose of generating, storing and transporting
hydrogen for its use in fuel cells, in transport applications
RE Grid Integration and Distributed Generation
Enterprise conferences
or for the generation of distributed energy.
Red Eléctrica de España
REE is the TSO (Transmission System Operator) of the
Spanish power system. Being the owner of 99% of Spain’s
high voltage power transmission grid, it is the only company
that specialises in the transmission of electricity in Spain.
REE, as the system operator, guarantees the continuity and
DIgSILENT
security of the power supply and the proper coordination of
the production and transmission system.
It is a consulting and software company providing highly
specialized services in the field of electrical power sys-
ARTECHE
tems for transmission, distribution, generation and industrial plants. DIgSILENT develops the leading integrated
power system analysis software covering the full range
of standard and highly sophisticated applications including a performance monitoring system.
Arteche has 65 years of experience in the electricity
sector. As an international benchmark with equipment
in service in over 150 countries, they desire to play a
leading role in the shaping of our sector’s future. They
continuously pursue more efficient solutions to industry
ENDESA
problems, through the application of suitable technologies and resources.
It is the leading utility in the Spanish electricity system
and the number one private electricity company in La-
JOFEMAR
tin America. It is a significant player in the energy sector of the European Mediterranean region. It also has
A vending leader constantly investing in the areas of
a growing presence in the Spanish natural gas market
technology, research and the development of new pro-
and it is advancing rapidly in the area of renewable
ducts that cover all imaginable requirements in the ven-
energy. ENDESA carries out electricity production,
ding sector.
distribution and supply activities. It also has stakes
in renewable and cogeneration energy facilities representing a combined capacity in service or under construction of 2,035 MW.
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RE Grid Integration and Distributed Generation
Program
Asignatura 1:
Distributed generation
Asignatura 2:
Generation and storage technologies
Asignatura 3:
Control techniques and renewable energy integration systems
Asignatura 4:
Power grid analysis
Asignatura 5:
Smart grids
Asignatura 6:
Standards and electric markets
Project
10
Distributed generation
Learning Outcomes
Program
Due to the different backgrounds of the students, in this
1.1.- Power System Operation: Electric grid introduc-
first subject basic theory and practical knowledge about
tion. Supply guarantee and power quality. Stability.
the electric energy is taught in order to unify their star-
Effects of renewable energy into the grid. Bounda-
ting point and making it easier for them to apply later
ries of the actual grid configuration. Consumption
concepts. Distribution, stability and power grid quality
models and patterns. Demand Side Management.
RE Grid Integration and Distributed Generation
Subject
1
concepts are revised as well as the effects of renewable
energy into the grid. The concept of distributed generation is as well introduced..
1.2.- Distributed Generation Definition: Integration in
power systems. Distributed generation advantages
and needs.
Credits: 2
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RE Grid Integration and Distributed Generation
Subject
2
Generation and Storage technologies
Learning Outcomes
Program
Some of the basic aspects of renewable energy gene-
2.1.- Wind Power: Wind power generation profiles. Wind
ration are shown. Furthermore, storage technologies will
power generation advantages and disadvantages.
be explained for considering their development essential
Wind power generation electric features.
for the success of distributed generation.
2.2.- Photovoltaic and Thermo-solar Power: Types of PV
Credits: 4,5
technologies. Building integrate PV systems. Performance indicators in PV installations (kWh/kW,
Wp/m2, ERF, IRR, etc ….). Aspects for the design
of PV systems. The solar PV installation and the
net metering. Best practices in integration of PV
systems.
2.3.- Biomass Power: General view.
2.4.- Hydraulic Power: Hydroelectric centrals with asynchronous machine. Hydroelectric centrals with synchronous machine. Secondary regulation. Hydraulic central visit.
2.5.- Hydrogen Technologies: State of the art (generation, transport and storage). Hydrogen applications
and Walqa visit.
2.6.- Power Storage: Battery types. Ultra-capacitors based energy storage systems. Flywheel.
2.7.- Electric Vehicles: EV interests. Random generation
forecast corrections. EV needs according to users
and grid exigencies. Dimension and security according to EV needs. Batteries and chargers. Standard
UNE 61851.
12
Control techniques and renewable
energy integration systems
Learning Outcomes
Program
To study the power electronic basic concepts as a tool
3.1.- AC/DC Drives Control: Introduction to basic analy-
for highly efficient process of electric power by means
sis and operation techniques on power electronic
of electronic states. To know the converters and electro-
systems. Basic commutation cell. Functional analy-
nic devices developed for the integration of renewable
sis of power converters main topologies. Power con-
energies.
version schemes between electric machines and the
grid. Power systems control using power converters.
Credits: 5,5
RE Grid Integration and Distributed Generation
Subject
3
High power electronic converters. Tendencies, topologies and basic functional principles. Multilevel
converter with 3 stages. Electronic conversion systems application to renewable energy generation
systems. Basic schemes and functional advantages.
Wind Power and Photovoltaic Power applications.
3.2.- Predictive direct power control of systems connected into the grid.
3.3.- Technological aspects of power electronic systems
connection to the grid: PLL. Sampling effect, commutation frequency, etc. Modulation types. Dimensioning LC filters. Harmonic cancellation by modulation.
3.4.- Active Network Devices, Control and FACTS Technology: Theory and operation principle of FACTS.
Implementation and FACTS technologies (Series /
Shunt compensation).
3.5.- Micro-Grids: Resources evaluation and needs. Dimensioning integration systems. Optimizing integration systems. Integration systems control. Case
of study: multi-generation buildings.
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RE Grid Integration and Distributed Generation
Subject
4
Power grid analysis and studies systems
Learning Outcomes
Program
This subject will present the different studies to under-
4.1.- Electric Systems Modelling: Modelling and simu-
take in electric grids to assure a correct planning and
lation of electric systems introduction. Electric
operation.
systems modelling for permanent regime studies.
Simulation grid studies and used tools. Nodes
The modelling of electric grid elements will be shown in a
method. Per Unit systems. Steady state simulation
general way, and in a more specific way for each kind of
studies. Load flow. Line, cable, transformer, gene-
study, that could be for steady state, dynamic or transient
rator and load models. Short-circuit and sequence
regimes.
networks. Electric systems modelling for simulation
in dynamic regime. Transient regime simulation stu-
The features for power supply quality will be exposed, as
dies. Transient regime electric systems modelling.
well as the measure and verification tools used to verify
Generation systems modelling.
the quality levels to apply in the grid studies.
4.2.- Power Supply Quality: Background and poor quality
Credits: 6
of electricity supply effects. Frequency variators. Slow
voltage variations. Flicker voltage fluctuations. Voltage
gaps and brief voltage cuts. Voltage boosts. Harmonic
distortion. Voltage unbalances. Wind Power Central or
MEGHA visit.
4.3.- Optimization and Grid Planning: Integral planning
of primary-secondary distribution systems using
mixed integer linear programming. A probabilistic
methodology for distribution substation location.
A linear programming methodology for the optimization of electric power-generation schemes. Grid
planning, considering DG and electric vehicles.
14
Smart Grids
Learning Outcomes
Program
Provide students with knowledge in smart grids pro-
5.1.- Smart Grids Programming: Virtual Power Producer.
gramming and protection. Present experiences will be
Intelligent reconfiguration including SCADA distri-
shown as well as technologies and devices being used.
buted generators.
Credits: 4,5
5.2.- Protective Devices: Introduction. Overcurrent protection. Distance protection. Differential protection.
RE Grid Integration and Distributed Generation
Subject
5
Protection coordination. Renewable energies protection. IEC 61850. REE control centre and RREE
centre visit.
5.3.- Case of Study: Distributed Generation Protection:
Distributed grids protection. Problems in distributed grids. Solutions.
5.4.- Smart grids: Integration of mini- and micro-generation in distribution grids. V2G integration. Control
devices. IEDs. Measurement and control communications.
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RE Grid Integration and Distributed Generation
Subject
6
Standards and electric markets
Learning Outcomes
Program
To know the different law and economic regulations
6.1.- Electric Market: The electric sector: structures
concerning distributed generation for the deregulated
and models. Economics in distributed generation.
markets, and to identify boundaries and opportunities in
Remuneration. Regulation comparison with other
those fields.
international electric markets experiences. Regulation of the electric sector impact on distributed
Credits: 2,5
generation. New activities regulation proposals.
6.2.- Standards: State of the art. Power supply quality
generic standards. Renewable energies specific
standards.
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End of section project
Learning Outcomes
At the end of the course it will be complimentary for
every student to hand in an End of Section Project.
Credits: 5
RE Grid Integration and Distributed Generation
Subject
7
17
Edificio CIRCE - Campus Río Ebro
Universidad de Zaragoza - Mariano Esquillor Gómez, 15
50018 Zaragoza
Tel.: 976 761 863 Fax: 976 732 078
web: fcirce.es e-mail: circe@unizar.es