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21 September 2018 2018 11:33 AM GMT

Ingeteam Develops New Optimal Offshore Power Conversion Architecture

Ingeteam, an independent global supplier of electrical conversion and turbine control equipment, has announced that a recent in-house R&D study allowed them to work out the optimal electrical power conversion designs for offshore wind turbines up to 15 MW. The research, taking into account the complex set of parameters at play in Levelized Cost of Energy (LCoE), enabled the company to develop a Medium Voltage Power Converter based on the parallelisation of several conversion lines (core product) reaching up to the 15 MW power range. Ingeteam claims that its new design is the ideal solution for scaling up offshore turbine platforms and will present its converter and the associated research at the Global Wind Summit in Hamburg next month.

Ingeteam’s R&D study assessed the complex relationship between the cost of the power conversion stage and its reliability and maintainability metrics (MTBF and MTTR respectively[1]) to determine the lowest LCoE. Based on the study findings, Ingeteam found that the optimal solution for the offshore wind market is a Medium Voltage Power Converter based on the parallelization of several conversion lines (core product) reaching up to the 15 MW power range. The power conversion line designed by Ingeteam offers the best investment/availability ratio, with efficient operation, easy maintenance and improved reliability.

“With current technologies, as well as the expected progress in materials and engineering integration, we think that offshore wind turbines will continue to rapidly increase their power capacity. Therefore, a robust medium voltage power converter has been developed focusing on a market that demands a low Levelized Cost of Energy (LCoE) without compromising quality or performance in wind turbine platforms that are continuously scaling up”, commented Ana Goyen, Director of Ingeteam Wind Energy.

The company’s new core product is capable of reaching the 15 MW power range and has been conceived considering the modularity of the system as a key feature. It, therefore, allows multiple solutions depending on customer requirements regarding the integration in the wind turbine. The design of the converter offers maintenance friendly characteristics with front access and withdrawable main components that directly contribute to minimizing the OPEX related to the service of the wind turbine.

This medium voltage converter has been specially designed for the offshore market with a fully enclosed cabinet and a liquid cooling system that guarantees the safe operation of the converter even in harsh environments. With efficiencies higher than >98% at rated operating conditions, the proposed solution contributes significantly to minimize the production losses of the wind turbine.

Ingeteam has developed the control algorithms of its full power converters to guarantee the fulfilment of the most demanding grid codes, such as, German EON-2006 and Indian CERC-CEA. Additionally, country-specific power quality requirements are fulfilled by applying advanced modulation strategies. Ingeteam’s medium voltage converter solution is able to control the torque of different types of generators (IG, PMG or EESG) with the highest performance dynamics but always remaining within winding and bearing limits. Finally, the control algorithms can be adapted to operate with single and multiphase stator generators in order to optimize the whole wind turbine solution.

[1] The availability depends on two metrics: Mean Time Between Failures (MTBF) and Mean Time Between Repair (MTTR). It grows with higher values of MTBF and lower values of MTTR. But there is also a direct relationship with costs as higher investments allow better materials or even the additions of redundancies, more advanced tools and optimal maintenance programmes.

October 18th 2018
EU Parliament Aims Higher For Renewables In Its 2030 Climate And Energy Goals

The European Parliament’s Industry & Energy (ITRE) and Environment (ENVI) committees have voted their position on the Energy Union Governance Regulation, just a week after the ITRE committee called for raising the EU’s 2030 renewable energy target to 35% instead of 27%. The Governance Regulation sets out how EU Member States will deliver the EU’s 2030 Climate and Energy goals including the binding EU renewables target and how they will give visibility to renewable energy investors on post-2020 deployment volumes. The IEA now says that wind will be Europe’s leading electricity source soon after 2030.

November 8th 2018
Macquarie Capital Reach Financial Closure On Largest PPP Project In Netherlands

Ahead of speaking at the 17th annual Benelux Infrastructure Forum next month in Amsterdam, Macquarie Capital, Ballast Nedam, and DEME have recently announced that they’ve reached financial closure on the largest PPP project ever awarded in the Netherlands. The €1 billion Blankenburg Connection PPP project, which involves the construction of an immersed tunnel under the Rotterdam port waterway, a land tunnel and two junctions, aims to improve road links between Rotterdam and its port. This further establishes the Benelux PPP market as one of the most active and important regions for global infrastructure projects business.

November 9th 2018
US: EIA Data Shows Renewables Outpacing Nuclear Power In Electrical Generation

The latest data from the U.S. Energy Information Administration (EIA) is showing that electrical generation by renewable sources has edged past nuclear power. Additionally, wind and solar now provide 10% of the nation’s electricity, overall; with solar alone surpassing biomass and geothermal combined. Significantly, solar now triples electrical generation by oil. In addition, the data reveals that solar and wind both showed strong growth with solar (i.e., utility-scale + distributed PV) expanding by 27.6% and wind by 11.2%. Combined, they accounted for nearly a tenth of the nation’s electrical generation.

November 2nd 2018
Ingeteam’s Indian Wind Converter Factory Achieves DNV GL Certification First

Ingeteam has announced that it received DNV GL’s “Shop Approval in Renewable Energy” certification for the wind converter manufacturing facility recently established by the company in the Tamil Nadu region. Its new facility is the first-ever wind converter factory to receive such a certification in India. DNV GL’s Shop Approval is awarded upon successful completion of a comprehensive audit and enables Ingeteam to simplify the scope of subsequent quality inspections. This next level certification guarantees that a workshop operates within a high-standard manufacturing environment and that adequate working procedures and methods are consistently deployed by qualified staff.

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