News   >>>  Here you will find current information about our company, especially about news in the development field, about customer and supplier relations and public agendas (press conferences, trade fairs, conferences ...) and media information. Should you require further information, please talk to us ... [On to contact >]

July 2013, Zagreb / Croatia

The ECCOMAS Multibody Dynamics 2013 will be held from 1st to 4th July in Zagreb. In order to meet the challenges of fast product development, different calculation methods are merged together during the last years, resulting in new analytical and computational methods. A rapid progress can be recognized in the field of flexible multibody systems, which represents a combination of classical multibody systems and the method of finite elements.

As at the biennial held International Conference on Multibody System Dynamics János Zierath, engineer at W2E, will participate together with colleagues Roman Rachholz and Christoph Woernle from the University of Rostock with a presentation on Comparison and Experimental Validation of Different Multibody Codes for Wind Turbine Modelling.

For some years W2E work during the development process with flexible multibody systems for dynamical analysis, simulation, optimisation and control of its wind turbines. Therefore, a lot of software tools were developed by W2E. Furthermore, W2E cooperates with the software developer MSC.Software.

The fullpaper is provided here.

 

Rostock, December 2012

Now, the large scale series production of the 2.0 MW wind turbine can start right away in India.

In 2012 the wind turbine developer W2E realised successfully the type certificate in compliance with GL 2010 for the 2.0 MW wind technology as the first company worldwide. According to statements of our Indian licensee this very turbine technology is already been listed and published in the C-WET/RLMM listing of certificates. The developed 2.0 MW technology is recorded as the first wind turbine technology in accordance with GL 2010 for the Indian market.

The edition 2010 of the GL guideline requires higher demands on loads and proofs for structural components as well as the strict implementation of Functional Safety of a machine.

The certificate was issued for a 2.0 MW wind turbine with a rotor diameter of 93 m and tubular towers with hub heights of 85 m and 100 m. The certificate allows the turbine technology to be erected and operated in wind class IEC 2a areas.

W2E licensees mainly act on the international wind market. They have the opportunity to obtain besides the technical documentation all necessary certifications and get access to the supply industry in the form of cooperation. As a result of this a fast market entry is ideally prepared from a design and development point of view.

May/June 2012, Stuttgart / Germany

The Joint International Conference on Multibody System Dynamics (IMSD)convened at the Institute of Engineering and Computational Mechanics at the University of Stuttgart, Germany in May 29 - June 1, 2012.

The W2E colleague János Zierath gave together with the colleagues Roman Rachholz and Christoph Woernle from the University of Rostock a lecture at the conference (http://www.imsd2012.uni-stuttgart.de/index.html) about dynamics of a controlled flexible multibody model of wind turbines.

Presentation (PDF / 2,3 MB)

May 2012, Rostock, Germany

W2E`s wind technology is the first technology worldwide which received a complete certificate based on the higher requirements of GL RC`s "Guideline for the Certification of Wind Turbines, Edition 2010". The certificate was issued by the TÜV NORD Sys Tec GmbH & CO. KG.

The certificate was issued for a 2.0 MW wind turbine with a rotor diameter of 93 m and tubular towers with hub heights of 85 m and 100 m. The certificate allows the turbine technology to be erected and operated in wind class IEC 2a areas.

In addition to the technology portfolio of the turbine platform the certificate shall be enlarged at short notice for the larger rotor diameter of 100 m for wind class IEC 3a. Furthermore the certificate shall be issued for two lattice towers in order to operate in hub heights of 120 m and 140 m.

This technology can be bought by potential customers in license and cause a technological lead over competitors. W2E licensees mainly act on the international wind market. They have the opportunity to obtain besides the technical documentation all necessary certifications and get access to the supply industry in the form of cooperation. As a result of this a fast market entry is ideally prepared from a design and development point of view.

Especially in the Indian market the "Guideline for the Certification of Wind Turbines by GL, Edition 2010" is required by the certifier C WET in order to be registered as wind turbine manufacturer and to start a successful business in this field.

W2E was able to meet the requirements on time and customer oriented as well as to use its own innovative power. The certificate was issued in close cooperation with the supply industry and by means of precise accords between licenses, certifier and W2E as developer. As result of these accords, the certificate was issued contemporary and in accordance with the erection plans in India and Germany.

Particular attention should be paid to the long lasting and good cooperation between W2E Wind to Energy GmbH and TÜV NORD sys Tec GmbH & Co. KG. This cooperation can be considered as base for the fast achievement of the type certificate.

April 2012,  Feldkirch / Rostock

bachmann.realtimes published in edition 4/2012 an article about the development partnership with W2E.

02 January 2012, Liebenscheid and Rostock

As a wind turbine manufacturer, Fuhrländer AG (FLAG) (www.fuhrlaender.de) headquartered in Liebenscheid, Rhineland Palatine has been a pioneer in the market for renewable energy for approximately 25 years. Joachim Fuhrländer, chairman of the board of FLAG, announces a new acquisition.

Effective 31 Dec. 2011 FLAG has acquired a majority interest in W2E Wind to Energy GmbH (W2E). The highly specialized engineering company with headquarters in Rostock is devoted to the development of wind power plants.

During the approximately 10 years of close cooperation between the two companies, FLAG has already implemented all of W2E's groundbreaking designs.

A highpoint of this cooperation was the successful launch of a 2.5 MW turbine with up to 103 meter rotor diameter and hub heights of 85 ? 160 meters, which is currently FLAG's bestselling product. A technology that in recent years FLAG has been able to establish worldwide through joint ventures and licensing agreements.

Multiple prototypes of interesting 2 MW turbines with 93 meter rotors were also installed, certified and evaluated in Germany.

Since 2011 both companies have been working on the construction of several prototypes of a 3 MW class turbine planned for installation this year. The turbine has a rotor diameter of 120 meters and will be initially installed on tubular towers with a hub height of 105 meters and later will be available on 140 meter hybrid towers. Installations are planned in Waigandshain, Mecklenburg-Western Pomerania as well as in the Ukraine.

Due to the high level of innovation, the development of this turbine is supported by funds from the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU).

The parties have agreed not to disclose the commercial terms of the transaction.

2011, Zhangbei / Baoding, China

The grid performance of the turbine W93 designed and market by W2E, Wind to Energy, as a licence, was measured in Zhangbei, province Hebei in September and October 2011. The National Wind Power Integration Research and Test Centre (NWIC), opened in January 2010, is a centre where wind turbine manufactures are able to conduct extensive measurements of the electrical performance of the turbine.

The focus of these measurements is on the turbine performance during a voltage drop occurred in the medium-voltage grid. These measurements are internationally known as Low Voltage Ride Through (LVRT).

The measurements in Zhangbei were carried out in accordance with the Chinese Technical rule for connecting wind farm to power system GB/T 19963-20. Various two-phase and three-phase voltage drops with different deepness and durations were performed during partial load operation and full load operation. Time responses of relevant currents, voltages, power, rotational speeds, and of the wind have been recorded and analysed. Predefined time responses of active power and reactive power were of particular interest.

The 2.05 MW turbine accomplished all necessary requirements approved by the NWIC officials. At the end of 2011 the necessary certificate was issued to the Chinese licencee AVIC by the Chinese Electric Power Research Institute (CEPRI). AVIC Huide Wind Power Engineering manufactures and distributes the 2.05 MW turbine under the name HD2000.

In 2012 AVIC will develop first projects in China. Therefore, the certificate is essentially mandatory. Additionally, AVIC sold 20 wind turbines which will be erected in Texas, USA.

May 2011, Rostock, Germany

W2E has launched the development of a new technology for wind energy turbines of the 3 MW class. Special characteristic of this new wind turbine technology is the very compact drive train used in close cooperation with Winergy, the global market leader for wind gearboxes.

Winergy developed the HybridDrive system which is directly linking a two-speed planetary gear and a permanent-magnet driven synchronous generator running at intermediate speed; the system also comprises a fully-rated converter.

In combination with LARUS Compact^®, W2E's patented and well-proven drive train concept, the result is a light-weight system that is easy on the gearbox, very compact and can be extended to 3.3 MW as an option.

The system complies with all internationally known grid connection regulations. In case of defects in the grid, operation is excellent and easy on the load.

The wind turbine operated with a rotor diameter of 120 m is designed for wind class IEC 2a, thus occupying a leading position among global competitors. The unit is offered for tubular and lattice towers with a nacelle height of up to 140 m.

The development is supported by the Chair for Technical Mechanics/Dynamics, University of Rostock, and the entire project is sponsored by the Federal Ministry for the Environment, Nature Conservation and Reactor Safety - based on a resolution of the German Bundestag.

IMAC XXVIII, Florida, USA, 2010

International Modal Analysis Conference, presentation and edition (PDF, 776 K)

Sven-Erik Rosenow
W2E Wind to Energy

Palle Andersen
Structural Vibration Solutions A/S

Operational Modal Analysis of a Wind Turbine mainframe using Crystal Clear SSI

2010, Rostock, Germany

W2E Wind to Energy GmbH, the developer of wind turbines, will start operating its first own test turbine in 2011.

The test turbine is to be erected and commissioned in March 2011 south of Rostock, at the Tarnow site near the head office of W2E (Germany).

"Now finally we will be able to test, implement and optimize our own developments and systems and the associated regulation and control processes in close proximity and thus in real time under actual conditions, and significantly improve the state of development," explains Christoph Klewitz, CEO of W2E GmbH.

The test turbine with a rotor diameter of 93 m and a nacelle height of 100 m has a nominal power of 2050 kWh. One of the advantages is that engineers will be able to test and validate the research and development results with a rigid measuring tower. Thus, W2E will be able to collaborate with W2E licence holders in placing already optimized turbine technologies in the market at a sustainable value, and to carry out extensive test series for the necessary certification and for intended further developments.

 

Operators of W100 with 2.5 MW can go online with their turbines.  W2E wind turbines meet the network behavious requirements of the German System Service Ordinance (SDL WindV).

The W100 with 2.5 MW developed by W2E is among the first wind turbine plants that has earned unit certification from a certifier. Through extensive field measurements and network behaviour simulation, W2E was able to establish that requirements of the System Service Ordinance (SDL WindV) are being met. The wind turbine available under the trade name FL2500-100 is produced and marketed worldwide under licence by Fuhrländer AG.

Fuhrländer AG has had extensive measurements performed on such a turbine at the Spremberg location. Various symmetrical and asymmetrical network errors were produced with a variety of voltage drop depths and error clarification times, while measurement and control processes were optimized. At the same time, W2E developed a model with which the online behaviour of the wind turbines at different network errors can be simulated. German Lloyd confirmed that the model has an excellent detailing degree for testing and certifying and was very accurately specified.

W2E required only 18 months for the preparation and successful implementation of the certificate. "We were able to achieve this result through goal-oriented close cooperation and structured work processes. The special feature of the regulator developed for the turbine's control is that it is being used in identical form for load simulation and simulation of the network behaviour", says Dr. Torsten Schütt, Regional Manager for Electrical Engineering.

W2E places much emphasis on strong cooperation partners. DIgSILENT, as  the supplier of the PowerFactory software, supports the project in many ways. The world's leading converter manufacturer, the Berlin firm of CONVERTEAM, developed the actuation and control algorithm for the power electronics with which PowerFactory can be run. W2E integrates the turbine regulator, the wind models, the rotor blade models and the models for the drive train, the pitch system, the generator, the transformer and the wind park network.

As of June 30th, 2010, only wind parks which have such a unit certificate under EEC regulations will be connected to the net. These turbines can earn the bonus according to SDL WindV. W2E Manager Christoph Klewitz stresses: "Our customers are very happy that they can implement their planned projects swiftly, earn the SDL bonus and win contracts for additional projects". 

W2E also places the model at the disposal of planners and experts who provide confirmation in the form of a unit certificate of conformity for wind parks with W100 turbines.

Oskar Patzelt Foundation

The annual competition for the Small and Medium-Sized Enterprise Award given by the Oskar Patzelt Foundation has become the most important German contest among small and medium-sized businesses since the first prize was awarded in 1995.

In 2010, 3580 German companies and businesspeople were nominated for this prestigious award.

We are proud to announce that W2E Wind to Energy GmbH was one of  641 companies to achieve the 2nd Stage of the 2010 competition, awarded at the Sixteenth Annual Oskar Patzelt Foundation Award Ceremony.

The jury awarded our company for its business development, for creating new jobs and for its innovative strength.  In addition, W2E was prized for its superior customer relations and excellent marketing.

March 2010, Rostock, Germany

Operational Modal Analysis - A Powerful Experimental Tool for Assessing the Dynamic Behavior of Wind Turbines

January 2010, Rostock, Germany

The company SeeBA Energiesysteme GmbH with their registered office in Stemwede, Germany and Mr. Michael Timmermann as private person hold at last a quota of 25.2% of the German limited liability company W2E Wind to Energy GmbH (referred to as the W2E). At the end of the year 2008 W2E has bought in a first step a quota of 5.2% from Mr. Michael Timmermann as strategically favorable step to hold the extraordinary majority of three-fourths beside the other shareholders. Following this transaction W2E has recently bought in a second step the remaining quota of 20% from the SeeBA Energiesysteme GmbH.

Indeed the companies signed a notarized offer to buy the relevant shares (as option) to a determined purchase price.

W2E was under respect of their strong financial and economical situation in the state and position to perform their strategically aim during these days: The company and their acting persons own henceforth all the shares of W2E, a minority interest from a third person or company is no longer been given. All decisions etc. will be from now on decided in the Company.

September 2009, Rostock, Germany,

W2E Wind to Energy GmbH, a design company for overall multi megawatt wind turbines, prepares a comprehensive set of documentation for the technology transfer to their licensees.

Now W2E uses the professional tool TCToolbox of the Berlin company Ovidius for a well-structured creation of technical document.

After the implementation of this XML-based documentation and content management system W2E is able to ensure verifiably their high quality demands, which are required by W2E for all of their technical documents. Together with the ingenious W2E code system LARUS every(ware), defined technical units are clearly identifiable during all processes of the turbine lifecycle.

September 2009, Spremberg, Germany,

The grid behaviour of the 2.5 MW-turbine W100 was successful tested. This wind turbine was developed by W2E Wind to Energy GmbH and offered as licence product.

The complex measurement campaign is carried out by the WINDTEST Kaiser-Wilhelm-Koog GmbH , an accredited and well-known testing institute. The W100 was manufactured by the Fuhrländer AG and erected in Spremberg at a lattice tower with 141 m hub height. ...[Details (PDF/122kB)>]

Rostock, September 2009,

The annual competition "Small and medium sized enterprise award" by the Oskar Patzelt Foundation has developed into the most important German medium-sized business competition since the prize was first awarded in 1995... [Details (PDF/393kB) >]

From: Sonne Wind & Wärme (Sun,Wind and Heat), May 2009,
When six former Nordex engineers launched the firm of W2E Wind to Energy GmbH in May 2003, ... [Details (PDF/6,61MB german)>]

Hannover, 20th of April 2009, 

At the Hannover Fair 2009 W2E Wind to Energy GmbH and eviag AG sign a licence agreement for the new wind turbine W93 with an installed power of 2.0 MW, on a non-exclusive worldwide basis. ... [Details (PDF/68KB)>]