WINDENG
Wind Energy Assessment and Wind Engineering

 

Presentation at the EWEC 2003

  LIST OF PARTICIPANTS AND DESCRIPTION OF WORK.. 1

Part A - The Participants.

part B - The Joint Programme of Work.

¨     1   Project Objectives 

¨     2   Research Method 

¨     3   Work Plan 

              3.1 STUDY AND MODELLING OF TURBULENCE IN THE PBL.

              3.2 WIND RESOURCE ASSESSMENT (SITING) IN COMPLEX TERRAIN..

              3.3 WIND MODELLING IN COMPLEX TERRAIN..

              3.4 OFFSHORE WIND ENGINEERING..

              3.5 POWER FORECAST.

                          ¨     §    Schedule and Milestones 

                          ¨     §    Research Effort of the Participants 

¨     4   Organisation and Management

¨     5   Training 

 

LIST OF PARTICIPANTS AND DESCRIPTION OF WORK

 

Part A - The Participants

 

 

     The Principal Contractor

 

                                              

Risø logo Risoe National Laboratory [RISOE]
Scientific Coordinator: Anna Maria Sempreviva

Administrative Coordinator: Lars Landberg

  

    The Members

 

                   

University of Oldemburg [UNI-OL]
Bernhard Lange
Deutshes Windenergie-Institut GmbH [DEWI]
Martin Strack
NEG-Micon A/S [NEG-M]
Lars Chistian Christensen
Centre for Renewable Energy Sources [CRES]       
Nikos Stefanatos
ENERGY E2
Claus Perstup

Istituto di Scienza dell’Atmosfera e del Clima-CNR [ISAC-CNR],          section of Rome
Alfredo Lavagnini, Anna Maria Sempreviva

Finnish Meteorological Institute

Finnish Meteorological Institute  [FMI]
Bengt Tammelin

                                  

                       

 

 

 

 

part B - The Joint Programme of Work

1          Project Objectives     

The aim of the network is to bring together young and experienced researchers to work jointly to improve wind resources assessment methodologies and to define the basis for the design of wind turbines and wind farms in different environments.

The spin-off of this NETWORK will be increased knowledge of the following subjects:

·        To define reliable values for turbulence descriptors to be used in modeling the turbulent wind fields, i.e. turbulence intensity, spectra, coherence, shear etc. in homogeneous and complex terrain as well as offshore, in order to offer guidelines for wind turbine design.

·        To improve existing methods used for modeling wind climates under the different conditions existing within Europe, from the cold Scandinavian to the warm Mediterranean regions, in order to offer reliable tools for manufacturers or developers to calculate the energy production of wind farms in complex terrain and offshore.

From the practical side the project will supply knowledge of use to EU energy policy makers, to local authorities or national and international energy agencies and authorities. Furthermore we will offer guidelines for the best turbine design and best sitting procedures for isolated generators or wind farms.

The training activity enters the research strategies of the institutes of the individual participants who all have a long-standing experience in the research and training. Young researchers will enter the national and international programmes and research strategies. The exchange of experience and personal contacts will produce a fruitful collaboration for the academic and research institutions and private companies involved, which will result in improved design criteria for end-users.

The main subject areas are related to different situations in which wind turbines are erected.

 

2          Research Method 

Explain the key elements of the methodological approach to be employed.

The network focus on the important objectives in the exploitation of wind energy (Figure 1.1).  The objectives are: to identify  how much energy is available, how to design wind farms and the most appropriate wind turbines available for the location and finally the important issue is to evaluate the time variation of wind energy in order to provide information  to the utility control rooms. External parameters to take into considerations are: terrain complexity (mountains, coastal, offshore), climate  and wakes induced by terrain or by the interactions among  wind turbines.  These external parameters give rise to atmospheric processes as thermal stratification, turbulence and wind profiles which in turn depend on the  geographical location . Solutions of how to handle these issues are to establish methodologies and modeling tools in order to use the available information in certain locations and reproduce the same information for other locations. i.e. information on frequency distributions are needed to locate the best place to erect wind farms and turbulence descriptors such as turbulence intensity at different heights  are needed for wind turbine design. In order to build these methodologies and modelling  tools,  development of suitable models is needed because this is cheaper and faster (and provides a more extensive set of parameters) than performing onsite measurements. Methodology development needs data as time series and frequency distributions in order to be tested and as input.

The general methodological approach will involve three strictly connected activities:

¨exploitation of existing data bases,

¨improvement and application of models and tools and

¨comparison between data and models. 

For the exploitation of existing databases the “Database on Wind Characteristics”, which is the result of a project funded by the EU Joule project JOR3-CT95-0061 during 1996- 1998 will be one of the major sources of data . The database contains measured wind time series both onshore and offshore from many sites in Europe, United States and Japan.

 

 

3          Work Plan

The work plan is devided into the following 5 tasks all connected and each task is coordinated by a participant.

 

1. Study and modelling of turbulence in the planetary Bounday Layer (PBL)

2. Wind energy assessment in complex terrain

3. Wind modelling in complex terrain

4. Offshore wind engineering

5. Power forecast

 

1. STUDY AND MODELLING OF TURBULENCE IN THE PBL.

1.1 Development of a model tool to calculate turbulence parameters over complex terrain to be used for turbine load test.

1.2 Investigation of reliable values for turbulence descriptors to be used in modelling the turbulent wind fields, i.e.turbulence intensity spectra, coherence etc. in homogeneous Heterogeneous terrain.

1.3 Study the structure of the atmospheric turbulence over step changes of surface characteristics (i.e. roughness and stability) and over changes in elevation.

1.4 Improve knowledge of extreme wind conditions

 

2. WIND RESOURCE ASSESSMENT (SITING) IN COMPLEX TERRAIN

Methods will be investigated in order to construct frequency distributions to be used for wind energy assessment in

2.1  Mountainous areas

2.2  Coastal areas

2.3  Improvement of  models to optimise wind farms design

 

3. WIND MODELLING IN COMPLEX TERRAIN

3.1 Linear diagnostic models.

3.2 Meso-scale prognostic models

3.3 Nesting of different types of models (large scale to local).

 

4.  OFFSHORE WIND ENGINEERING

4.1 Offshore wake structures

4.2  Wind-wave field interaction         

4.3  Profiles in thermal stratification

4.4 Improvements of models to evaluate wind potential from wind farms, keeping into account wake  interactions and wind-wave interaction effect on wakes offshore.

5. POWER FORECAST

5.1 Studies of wind variability and predictability

5.2 Extension of power forecast for offshore conditions

5.3 Study of the regional interpretation of forecast

 

 

Table 3.1 summarises the allocation of tasks in the proposed network. and the co-ordinating institution.

 

TASKS

Responsibility for tasks

Risoe

CRES

DEWI

FMI

UNI-OL

TASK
PARTICIPANT

1.1

1.2

1.3

1.4

2.1

2.2

2.3

3.1

3.2

3.3

4.1

4.2

4.3

4.4

5.1

5.2

5.3

1.RISØ

X

X

X

X

X

X

 

 X

 

X

X

 X

 X

X

 

 

2.UNI-OL

 

 

 

 

 

 

X

 

 

X

 

 

X

 

X

X

X

3.DEWI

 

 

 

 

 

X

X

 

X

 

X

 

 

 

 

 

 

4.NEGM

X

X

 

 

 X

X

 

 

 

 

 

 

 

 

 

 

 

5.CRES

 X

X

 

X

 X

 

 

 

 

 

 

 

 

 X

 

 

6.SEAS

 

 

 

 

 

 

 

 

 

 

 X

X

 X

X

 

 

7.IFA

 

X

X

X

X

X

 

 

X

 

 

 

 X

 

 

 

 

8.FMI

 

X

X

 

X

 

X

 

X

 

X

 

X

 

X

 

 

 

  §         Schedule and Milestones

 

In order to achieve the objectives of the Network, the tasks will be conducted in parallel.

 

Elapsed
Month

Milestones

1

1st kick-off meeting in order to:
¨ Consider the status of national and international projects, databases    and models.
¨ Organise the working groups for the subtasks,
¨ Define the final profiles of the fellow to be considered and
¨ Finalise the participation to the IEA Database

2

Opening of the home page of the Network at Risø

First round of  job announcements on TMR home page on  CORDIS

3

Evaluation of the applications

6

Beginning of the first grants

12

Leading group meeting

 1st progress report

24

 

 

2nd   Meeting on the state of research in the project

Mid-Term review 
1st  Workshop on the state of research in the project including
presentation of results  by young scientists on the project progress.
    and 
Workshop for young scientist and Principal investigators on
"Training in an European Network, problems, advantages and future"

2nd progress report

36

 

Symposium on the results of the network activity:
presentation of the results by young scientists on  the Network

objectives:
¨ Advancement in the description of guidelines for wind turbine design offshore and complex  terrain
¨ Advancement in the description of guidelines for wind farm design offshore and complex terrain
¨ Advancement in the methodology for assessment of wind climatology offshore and in complex terrain.

3rd progress report

40

End of the project and final report

 

Table 3.2. Milestones

 


 

§         Research Effort of the Participants

 

Professional research effort on the network project

 

Participant

Young researchers financed by the contract

(man-months)

 

(a)

Researchers to be financed by other sources

(man-months)

 

(b)

Researchers likely to contribute to the project

 

(number of individuals)

 

(c)

1.RISOE

36

36

7 (3)

2.UNI-OL

30

30

5 (2)

3.DEWI

24

22

4 (2)

4.NEG-M

24

12

2 (2)

5.CRES

24

24

5 (2)

6.SEAS

12

8

2 (1)

7.IFA

24

24

4 (2)

8.FMI

24

24

3 (2)

Total

198

197

48

 

Table 3.3  Distribution of man-months  between  visiting scientists financed by the programme and  scientists financed by other sources.

 

 

4          Organisation and Management 

The key persons of the projects are: two coordinators, the scientific officers of each participant and the responsible of each sub-task defined in the work plan.

Two coordinators: The administrative coordinator will be in charge of keeping contact with the Community and each participant concerning financial subjects. The scientific coordinator will be in charge of keeping contact with the participants, the Community and other institutions outside the network interested in the scientific activity. Young fellows will be also allocated to help in these coordination tasks. The two coordinators and the scientific officer for each participants will form a committee in order to locate and discuss general and specific problems and  the monitoring of the activity.

The project start is planned the day before the first meeting. Furthermore, annual  meetings will be organised.

The coordinators of each of the five tasks defined in the work programme will define working groups in order to organise the finer structure of the co-operation and training.

Each institution will appoint a person as mentors for foreign young researchers in order to ensure her/his integration into the team and the host country in a practical sense.

The young scientists involved in the training will be asked to participate to the network meetings prepare the scientific programme and working groups in order to discuss their experience in international co-operation and their scientific results.

Besides two annual meetings, the mid term review conference and the final conference, the communication among participants at different levels will go on via email,  home page and Microsoft  NetMeeting@  program.

As a first step a database with detailed information on the data and models available within the group of participants will be established and made available to all of the participants via WEB access with links to the IEA Database.

For the monitoring of the project, the young scientist will update the Home Page of the network, with a section open for discussion. Databases and home page will be updated and maintained also after the end of the contract.

 
An electronic journal where young scientist can publish short notes from their research will be opened. The Scientific committee of the Network will act as referees. This will be a journal open to all young researchers working in the fields related to the Network activity and will be advertised in Conferences etc. This site will be updated and kept open also after the end of the Network.

The Network will be promoted to other institutions in appropriated meeting and conferences. An e-mail distribution list of interested institutions will be compiled. The flow of the information is described in figure 7.1.

Dissemination of the results will be achieved through contribution made at major international conferences and with a significant number of referenced publications

Especial care will be taken to include contacts with other organisations interested in the as the groups outside the network and involved in the projects utilised in it and  especially industry and End-users.  This will be guaranteed by the participation of some of the participants to a Concerted actions and a Thematic Network, one of the goals of those being the dissemination of the relevant results in the field of wind energy.

At the end we plan to apply to the "Euro-Conference" activity in order to organise the last  conference.


5          Training

 

“A minimum overall total of 198 person-months will be provided by young researchers whose employment will be financed by the contract.”

 

Since the female component in this field is very small, women candidates will be promoted and encouraged. As the scientific coordinator is a woman, she will make sure that this aspect is taken into consideration.

Vacancies advertisements will be sent to CORDIS, appear on the WEB page of the Network and distributed by e-mail. The Marie Curie network will also be informed of post-doctoral vacancies.  We foresee a minimum period of one year for a post-doc and a minimum period of six month for a post-graduated.

In case of difficulties in recruiting young researchers we foresee different solutions.

¨      An extension of the grants for the previous recipient up to the maximum allowed period for the category or an alternation of  the young scientists  involved in the network moving from one laboratory to another on similar or complementary projects.

¨      Two fellows from two participating organisations can work first in one institution and then move together to another institution in order to allow them to work jointly for a longer period. 

 

Young researchers to be financed by the contract

 

Participant

Young pre-doctoral researchers financed by the contract

(man-months)

(a)

Young post-doctoral researchers  financed by the contract

(man-months)

(b)

 

Total (a+b)

 

 

(c)

Scientific

Specialities in which training will be provided

(d)

1.RISØ

12

24

36

E-07 I-99

2.UNI-OL

12

18

30

E-07 I-99

3.DEWI

15

9

24

E-07 I-99

4.NEGM

12

12

24

E-07 I-99

5.CRES

12

12

24

E-07 I-99

6.SEAS

0

12

12

E-07 I-99

7.IFA

12

12

24

E-07

8.FMI

12

12

24

E-07

Total

87

111

198

 

 

Table 5.1. Breakdown of the minimum overall total of man-month of young researchers in the                     network.

 


Training Programme 

 

The WINDENG training objective is to offer young scientists to work in an integrated environment where they will learn the different aspects of wind energy, exploring some of the challenging frontiers of wind energy technology and most of all of its application. The young scientist will enter a group of teams with a well-established cooperation through years of common projects that guarantees the teamwork. WINDENG addresses many issues but they are indeed strongly correlated and cooperation will be close. The training activity will be carried out in overlapping clusters and the fine co-operation will be defined at the first meeting for the activity of the Network.

The cooperation in this network will be developed within the ongoing common projects and based on the positive experience gained in a previous network “Wind modelling and climatology studies above inhomogeneous terrain with regard to wind energy and air pollution, emphasis on Mediterranean areas” funded by the HC&M Programme.

Here the Wind Energy groups of the past network has been expanded to include an academic group, a group from Industry and an Electrical Utility Board Company, which are also part of ongoing projects, creating a unique environment. We can at present foresee that Risoe and SEAS and NEG-Micon will share young scientists and will offer them to experience different aspects of wind energy. SEAS, as local electricity utility, is offering a unique possibility for relevant studies related to the implementation of actual large-scale offshore projects. Furthermore Risoe and SEAS  will offer the possibility to perform turbulence studies offshore in Denmark to be utilised in the implementation of models for reproducing turbulent fields for the design of wind turbines. Risoe and NEG-Micon will recruit a fellow in order to work on site characterization in complex terrain for the purpose of designing suitable wind turbines and wind farms. FMI, Risoe, DEWI, CRES will create opportunity within the MOWIE project for the analysis and report of the error in the present wind power assessment, to improve current state-of-the art tools, and to produce new tools (3D flow codes) to be delivered for prediction of wind power potential and for micro-siting in mountainous terrain. UNI-OL will also work on this topic together with DEWI in choosing a meso-scale model to be nested to the HIRLAM or ECMWF meteorological model

The past cooperation with Risoe and FMI will assure the integration of the Italian team ISAC-CNR in the investigation of flow in complex terrain in Mediterranean coastal and mountainous areas and also in extreme conditions using an unique database of flow around a hill in Antarctica, where there are ongoing studies of influence of orography on the turbulent wind field in very stable conditions to test the WAsPEngineering tool and give data for turbulence parameterisation in extreme stability conditions and extreme winds.

UNI-OL and DEWI have already a programme of training PhD students and exchange of Post Docs in the field of improvement and application of "numerical modeling" for wind energy assessment. In this view they foresee to share young scientists on flow modelling developments for wind energy assessment methodology and also to downscale short-term prediction from large meteorological models (HIRLAM).

UNI-OL has been cooperating with Risoe through the training of PhD students at Risoe one working on interaction between wind and waves offshore this cooperation will be continued.

Training will be accomplished using available databases, numerical models and tools and in participation to the ongoing National and R&T projects where the participants are cooperating. The training strategy will conform to general rules:

More specifically:

They will be offered to participate to the WAsP and WAsP Engineering courses organised at Risoe the former being the state-of- the-art and most widely used tool for wind resources assessment and the latter the state-of-the-art and newest tool to calculate turbulent parameters in complex terrain to be given as input to wind turbine design programs. Furthermore they will have the opportunity to participate to the examination in order to become a certified WasP user. With this background they would be able to participate in the commercial activities as 2nd opinion studies on wind resources assessments. 

The young scientists involved in the training will be asked to prepare the scientific programme and working groups for the two meetings planned in the milestones and will be asked to discuss not only their scientific results but also their experience in the Network. All will be invited to present the results of their activity at major conferences and will be introduced to the relevant scientist in the area of their study.

In order to grant suitable training we will adopt two strategies depending whether training is applied at pre- or post-doctoral level.

Pre-doctoral training

Space will be given to post graduate scientists not engaged in a PhD study but recipient of fellowships in their country. As a general rule they will be offered a period not shorter than six month in one institution and then be offered to move to another institution in order to acquire international experience and to increase their chances to find a position in the future or to start a PhD study.

Post-Doctoral training

This category of fellowship is mainly directed at use the relevant experience in their education field. International experience is often an additional requisite in job advertisements. As a general rule they will be offered a period not shorter than one year.

Training in project management and in writing proposals for fundraise will also be a special topic for a post-Doc fellow.