On 5 September 2013, Professor Manfred Gekeler will present his novel so-called Soft Switching Three Level (S3L) Inverter at the European Conference on Power Electronics and Applications (EPE 2013) in Lille, France.
S3L-Inverter for solar energy units, wind power installations, electric drives and power supplies
(tioloco, alxpin, scanrail, sKatzenberger/iStockphoto.com)
The inventor from the University of Constance will demonstrate on the basis of concrete data the advantages of the S3L-Inverter compared with the current state of the art technology, namely the hard switching NPC 3-level inverter.
The presentation (0045 - Soft Switching Three Level Inverter/S3L Inverter) will take place at 9.40am as part of the session Resonant Converter Topologies ( LS7d: Topic 4) at the Lille Grand Palais (Location Faidherbe).
The innovative electronic circuit developed at the Laboratory for Power Electronics at the HTWG Konstanz University of Applied Sciences makes inverter technology even more economic and environmentally friendly. The marketing and commercialization of the invention of the Soft Switching Three Level (S3L)-Inverters is carried out by the Technologie-Lizenz-Büro (TLB) GmbH in Karlsruhe, Germany. The agency for innovation and patent management acts on behalf of the Konstanz University of Applied Sciences and has already signed up an exclusive license in the field of photo voltaic. Licenses in other fields of use are now available.
The inverter solves in a simple manner the problem of energy losses in conventional DC to AC converters. Using “soft switching” allows the inverter to function largely without any energy losses resulting in outstanding efficiency while at the same time exhibiting a high switching frequency. The inverter can be used in a multitude of fields and consequently has a huge market potential.
The TLB targeted in its initial commercialization activities the photo voltaic market and was successful in identifying a suitable licensee. Engineer Emmerich Somlo, who has been managing the project as innovation manager, negotiated and successfully concluded the license agreement. The broad range of fields of use represents a challenge in terms of the patent strategy as well as the commercialization strategy. “We have developed a strategy which includes the possibility of part-exclusive licensing in specific fields. In the area of photo voltaic, we have already entered into an exclusive use license. The licensee has therefore secured the exclusive rights to the commercialization of the invention as it applies to this sector”, explains Emmerich Somlo.
Marcus Lehnen, Chief Executive of TLB: „This is of benefit to both parties. The manufacturer in the photo voltaic industry can gain a technological advantage without the risks associated with in-house research and development. The university benefits from the income, which is also shared with the inventor who has a right to 30 percent of the income generated by the license.“
The TLB is now seeking to enter into license agreements with manufacturers covering other sectors. Of interest is the inverter in particular for manufacturers of wind power equipment, uninterruptible power supplies, electricity supply systems and motor control. In particular for three phase current drives which are driven by frequency inverters is the invention of great interest, given the planned introduction of efficiency categories. The technology is equally applicable to traction inverters for locomotives, ultra-light high-rpm power units in the aerospace industry and electric cars. To ensure that potential licensees are provided with good protection of their markets, the TLB has applied for patent protection in the most important industrialized nations, with the German and US patents already granted.
Professor Manfred Gekeler, who teaches and carries out research in the field of power electronics and drive technology at the Konstanz University of Applied Sciences, assesses the invention from the technical point of view as follows: “Our inverter is trend-setting because it improves the efficiency of electrical drives very significantly using only low-cost semiconductors”.
The innovative inverter consists of the well-known three level pulse width modulation inverter of type T combined with a novel snubber circuit. The circuit uses only a few simple components and prevents the switching losses of the power transistors of the pulse width modulation inverter. The switching topology combines two existing approaches, the multi-level inverter and the soft switching technology, in a uniquely simple way. For interested industry parties, prototypes are available for inspection at the Laboratory. Currently, further work has been carried out both on the hardware as well as the software aiming for even greater efficiency gains.Your contact for any queries regarding commercialization and licensing is Emmerich Somlo of TLB, email@example.com . Further technical details can be found in the relevant exposé on our website (www.tlb.de, Technology Offers, Energy Technology).
- Exposé S3L-Inverter
Dr. Regina Kratt | idw
Silicon solar cell of ISFH yields 25% efficiency with passivating POLO contacts
08.12.2016 | Institut für Solarenergieforschung GmbH
Robot on demand: Mobile machining of aircraft components with high precision
06.12.2016 | Fraunhofer IFAM
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
09.12.2016 | Life Sciences
09.12.2016 | Ecology, The Environment and Conservation
09.12.2016 | Health and Medicine