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Nidec ASI and German utility STEAG have inaugurated one of the world's largest battery energy storage system (BESS) projects today. Nidec ASI's six large energy storage systems, with a total capacity of 90MW, are facilitating STEAG in its stabilization of Germany's power grid. The official commissioning of the project, attended by North-Rhine Westphalia Minister of Economic Affairs, Garrelt Duin, is taking place in Duisburg-Walsum - one of the six sites where the large energy storage systems have been installed. The BESS systems were officially put into operation at the Weiher power plant in Weiher, Germany earlier this week. "We are thrilled to partake in today's inaugural ceremony and see this project come to life," said Kaila Haines, Marketing Director of Nidec ASI. "The awarding of the major contract speaks to Nidec ASI's growing leadership in the global energy storage field. We are expanding our services for battery energy storage systems (BESS) to the world's most prominent industrial companies and today we celebrate a great achievement with STEAG." Nidec ASI was commissioned by STEAG in November of 2015 to supply its innovative technology to the power giant as part of its efforts to stabilize Germany's grid. Breaking ground last May, the multinational industrial solutions leader has provided a massive energy storage system with a total capacity of 90 MW,  the largest installment of its kind. The BESS system is based on Nidec ASI's energy conversion solutions and uses batteries supplied by LG Chem to store electrical energy, which STEAG then uses to provide auxiliary services to the TSO. Nidec ASI was renamed as such in 2012 when Nidec, a Japanese multinational corporation listed on the Japanese Stock Exchange, acquired Ansaldo Sistemi Industriali (ASI) SpA, an Italian multinational that can trace its roots back to 1853. The company is a provider of customized solutions for a range of industrial applications worldwide. Operating from offices in Italy, North America, France, Germany, Romania, the United Arab Emirates, Southeast Asia, Russia, China and Japan, its markets include petrochemical, energy, steel, marine, and industrial automation. Nidec ASI specializes in heavy-duty applications requiring high power and performance, including inverter and converter power electronics, industrial process control and automation, motors and generators. As of 2015, Nidec ASI has a portfolio of orders worth about 400 million Euro, with an installed base on more than four continents.


Nidec ASI et la société de services publics allemande, STEAG, ont inauguré le plus grand système de stockage d'énergie de batterie (BESS) aujourd'hui. Les six grands systèmes de stockage d'énergie de Nidec ASI, avec une capacité totale de 90 MW, aident STEAG à stabiliser le réseau électrique allemand. (Photo: http://photos.prnewswire.com/prnh/20161117/440647 ) La mise en service officielle du projet, à laquelle a assisté le Ministre des Affaires étrangères de Rhénanie-du-Nord - Westphalie, Garrelt Duin, s'est déroulée à Duisburg-Walsum, l'un des six sites où les grands systèmes de stockage d'énergie ont été installés. Les systèmes BESS ont été officiellement mis en service à la centrale Weiher, en Allemagne, plus tôt cette semaine. « Nous sommes ravis de participer à la cérémonie d'inauguration d'aujourd'hui et de voir ce projet prendre vie », a déclaré Kaila Haines, directrice du marketing chez Nidec ASI. « L'attribution du contrat majeur confirme le leadership croissant de Nidec ASI dans le secteur mondial du stockage d'énergie. Nous élargissons nos services dans le domaine des systèmes de stockage d'énergie de batterie (BESS) pour les sociétés industrielles les plus importantes au monde et nous célébrons aujourd'hui une grande réussite avec STEAG. » En novembre 2015, le géant de l'énergie STEAG a demandé à Nidec ASI de fournir sa technologie innovante dans le cadre de ses efforts pour stabiliser le réseau allemand. En mai dernier, le premier fournisseur multinational de solutions industrielles a innové en concevant un système massif de stockage d'énergie d'une capacité totale de 90 MW, la plus grande installation de ce genre. Le système BESS repose sur les systèmes de conversion d'énergie de Nidec ASI et utilise des batteries fournies par LG Chem pour stocker l'énergie électrique, que STEAG utilise ensuite pour fournir des services auxiliaires aux gestionnaires de réseau de transport d'électricité. Nidec ASI a changé de nom en 2012 lorsque Nidec, une multinationale japonaise cotée à la bourse japonaise, a fait l'acquisition d'Ansaldo Sistemi Industriali (ASI) SpA, une multinationale italienne fondée en 1853. La société fournit des solutions personnalisées pour une large variété d'applications industrielles dans le monde entier. Opérant depuis des bureaux situés en Italie, en Amérique du Nord, en France, en Allemagne, en Roumanie, aux Émirats arabes unis, en Asie du Sud-Est, en Russie, en Chine et au Japon, ses marchés incluent la pétrochimie, l'énergie, l'acier, la marine et l'automatisation industrielle. Nidec ASI se spécialise dans les applications lourdes nécessitant une puissance élevée et un excellent niveau de performance, comprenant des onduleurs et des convertisseurs électroniques, l'automatisation et le contrôle des processus industriels et les générateurs et moteurs. En 2015, Nidec ASI détenait un portefeuille de commandes d'une valeur de près de 400 millions d'euros, avec une base installée sur plus de quatre continents. Contacts Bureau de presse Nidec ASI - Ketchum Italie : Rachel Niemoller Patrizia Pia Massimo Garanzini +39 0262411911 nidecasi@ketchum.com


Nidec ASI und das deutsche Versorgungsunternehmen STEAG haben heute eines der größten Projekte für Batterie-Energiespeichersysteme (BESS) eröffnet. Die sechs großen Energiespeichersysteme von Nidec ASI, mit einer Gesamtkapazität von 90 MW werden von STEAG zur Stabilisierung des deutschen Stromnetzes bereitgestellt. (Photo: http://photos.prnewswire.com/prnh/20161117/440647 ) Die offizielle Übergabe des Projekts, an der auch der Wirtschaftsminister von Nordrhein-Westfalen, Garrelt Duin, teilnimmt, findet in Duisburg-Walsum statt - einer der sechs Standorte, an denen große Energiespeichersysteme installiert wurden. Die BESS-Systeme wurden offiziell Anfang dieser Woche im Kraftwerk Weiher (Weiher, Deutschland) in Betrieb genommen. "Wir freuen uns, an der heutigen Eröffnungszeremonie teilzunehmen, bei der das Projekt zum Leben erweckt wird", erklärte Kaila Haines, Marketingleiterin bei Nidec ASI. "Dass Nidec ASI diesen großen Auftrag erhalten hat, spricht für die wachsende Führungsstärke des Unternehmens im Bereich der Energiespeicherung weltweit. Wir weiten unsere Dienste für Batterieenergiespeichersysteme (BESS) auf die weltweit bekanntesten Branchenunternehmen aus und wir feiern heute zusammen mit STEAG eine große Errungenschaft." Nidec ASI erhielt im November 2015 den Auftrag von STEAG, dem Stromgiganten seine innovative Technologie als Teil seiner Bemühungen bereitzustellen, das deutsche Stromnetz zu stabilisieren. Der Spatenstich erfolgte letzten Mai und das multinational führende Unternehmen für Industrielösungen hat ein enormes Energiespeichersystem mit einer Gesamtkapazität von 90 MW bereitgestellt, die größte Installation dieser Art. Das BESS-System basiert auf den Energieumwandlungslösungen von Nidec ASI und nutzt von LG Chem bereitgestellte Batterien, um elektrische Energie zu speichern, die STEAG dann zur Bereitstellung von Zusatzleistungen an Übertragungsnetzbetreiber nutzt. Nidec ASI wurde im Jahr 2012 umbenannt, als Nidec, ein japanisches multinationales, an der japanischen Börse gelistetes Unternehmen, Ansaldo Sistemi Industriali (ASI) SpA erwarb, ein italienisches multinationales Unternehmen, das seine Geschichte bis ins Jahr 1853 zurückverfolgen kann. Das Unternehmen stellt maßgeschneiderte Lösungen für eine Reihe von Industrieanwendungen weltweit bereit. Es verfügt über Büros in Italien, Nordamerika, Frankreich, Deutschland, Rumänien, den Vereinigten Arabischen Emiraten, Südostasien, Russland, China und Japan und ist auf den Märkten für Petrochemie, Energie, Stahl, Marine und industrielle Automatisierung tätig. Nidec ASI hat sich auf Schwerlastanwendungen spezialisiert, die viel Energie und hohe Leistungsfähigkeit erfordern, wie Um- und Wechselrichter für Leistungselektronik, industrielle Prozesskontrolle und Automatisierung, Motoren und Generatoren. Seit 2015 kann Nidec ASI ein Auftragsportfolio im Wert von mehr als 400 Millionen Euro vorweisen und verfügt über Installationen auf mehr als vier Kontinenten.


Tessarolo A.,University of Trieste | Agnolet F.,Ansaldo Sistemi Industriali | Luise F.,Ansaldo Sistemi Industriali | Mezzarobba M.,University of Padua
IEEE Transactions on Energy Conversion | Year: 2012

It is known from the literature that in electric machines with open stator slots, the air-gap flux partly enters the slot openings and induces eddy currents in the conductors placed closest to the air gap, possibly causing local overheating issues. For the study of such phenomenon, time-stepping finite-element analysis (TSFEA) is employed by many authors. This paper presents an alternative approach based on a set of time-harmonic finite-element analysis (THFEA) simulations. The proposed method can be applied to surface permanent-magnet machines and offers the advantage of a shorter computation time with respect to THFEA. It is also more suitable for being integrated into automatic design optimization programs. The accuracy of the approach is assessed by comparing stator eddy-current losses independently computed by THFEA and TSFEA for different machine geometries and operating conditions. Results obtained in the two ways are shown to be in good accordance. © 2012 IEEE.


Tessarolo A.,University of Trieste | Bassi C.,Ansaldo Sistemi Industriali | Giulivo D.,Ansaldo Sistemi Industriali
IEEE Transactions on Industrial Electronics | Year: 2012

Salient-pole synchronous machines are conventional electric machines which have been widely used and studied over decades. Some aspects of their modeling and analysis, however, still constitute a challenge for designers and require state-of-the-art methodologies to be applied. As an example, this paper addresses a 14-MVA salient-pole shipboard alternator, of which full-scale prototypes are built and tested with different damper cage designs. A time-stepping finite-element (FE) analysis is assessed against test results as a method to predict generator performance for the various damper cage design alternatives. FE simulations are shown to give accurate results even without model tuning if continuous end rings are used to short circuit damper bars. For the design solution with partial end arcs, model tuning is required, instead. For this purpose, a calibration method is proposed and successfully validated, which only requires a set of impedance measurements to be taken on the machine at standstill. © 2011 IEEE.


Tessarolo A.,University of Trieste | Zocco G.,Ansaldo Sistemi Industriali | Tonello C.,Ansaldo Sistemi Industriali
IEEE Transactions on Industry Applications | Year: 2011

Over the last few decades, the production of liquefied natural gas (LNG) has been pushing the development of electric drives with increasingly high power ratings, up to several tens of megawatts. A consolidated technology in this field entails dual-star two-pole synchronous motors fed by load-commutated inverters with supply frequencies between 50 and 80 Hz. This paper presents a novel drive concept for very high-power and high-performance LNG applications based on a 45-MW four-pole 100-Hz quadruple-star synchronous motor supplied by four pulsewidth modulation multilevel voltage source inverters. The genesis, development, and industrial implementation of this new design concept are outlined. Full-load drive system testing and commissioning results are presented which successfully validate the proposed solution. © 2011 IEEE.


Tessarolo A.,University of Trieste | Bassi C.,Ansaldo Sistemi Industriali
IEEE Transactions on Energy Conversion | Year: 2010

Electric motors equipped with multiple three-phase windings are often used for the advantages they offer in terms of reliability, performance, and inverter power segmentation. When the windings are fed by independent voltage-source inverters (VSIs), circulation harmonic currents can occur in stator phases. If the motor is an induction machine, circulation currents are known to originate form transient imbalances in the applied voltages due to inverter switching. This paper investigates the problem when a synchronous machine is used and shows how additional (and possibly major) sources for circulation currents can arise in this case (even with a round-rotor design) due to the nonsinusoidal air-gap flux distribution. The phenomenon is illustrated for a 45-MW quadruple three-phase synchronous motor supplied by four medium-voltage (MV) multilevel VSIs. Its circulation currents are predicted with two alternative methods, i.e., analytically and from time-stepping finite-element simulation. The results obtained in both ways are shown to well match measurement results collected on the actual motor during full-load system testing. © 2006 IEEE.


Soressi E.,Ansaldo Sistemi Industriali
IEEE International Conference on Automation Science and Engineering | Year: 2011

Safety in industrial plants is one of the main topics of the decade and this is reflected in the related rules proliferation. The well known safety rule EN954-1 [2] is going to be retired in December 2011. Two different rules have been introduced, the ISO EN 13849 [3] and IEC EN 62061 [5]. The two rules are not so easy to read and to apply because they introduce some statistical parameters that are not usual for system designers. The aim of this paper is to introduce an example of application of the IEC EN62061 and to identify if the same safety approaches that came from the application of the old EN 954-1 rule are still valid. © 2011 IEEE.


Patent
Ansaldo Sistemi Industriali | Date: 2010-01-13

The invention relates to a polymeric material mixer (100) comprising a mixing chamber (10) with first and second mixing shafts, and first measuring means for generating at least one temperature signal indicative of the temperature value of the polymeric material. The mixer also has a power-driven unit (60) associated with one end of the first mixing shaft, which is adapted to rotate the first mixing shaft (61), power supply means adapted to generate a power supply signal for supplying power to the power-driven unit (60). In the mixer of the invention, the power-driven unit (60) comprises a permanent magnet motor with a drive shaft (61) directly coupled to the first mixing rotor (20a) so that the rotation speed of the drive shaft corresponds to the rotation speed of the first and second mixing rotors.


A magnetic wedge for closing slots of a rotating electric machine comprising two elements that are distinct and produced separately: a first element (1) in the shape of an elongated plate made of sintered material having high magnetic permeability and a second mechanical slot closure element (2) made of mould-formed plastics material such as epoxy or polyester resin loaded with glass fibre and having properties of high mechanical strength against stresses.

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