To main content

Geir Mathisen

Senior Research Scientist

Geir Mathisen

Senior Research Scientist

Geir Mathisen
Phone: +47 930 59 367
Department: Mathematics and Cybernetics
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1599822

The objective of this study is to evaluate how PV-oriented prosumers can offer flexibility to the Distribution System Operator (DSO). The different cases focus on the customer and changes on the customer side that will benefit both the customer and the distribution grid. (Actual tests of services de...

Authors Bremdal Bernt Arild Sæle Hanne Mathisen Geir Degefa Merkebu Zenebe
Year 2018
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1563533

This investigation proposes a CPES architecture and model for engineering energy management application for smart grids. In particular, the investigation considers the implementation of the power systems state estimator (PSSE). The CPES architecture has three layers: physical, monitoring and applica...

Authors Srinivasan Seshadhri Holhjem Øystein Hov Marafioti Giancarlo Mathisen Geir Maffei Alessio Palmieri Giovanni Iannelli Luigi Glielmo Luigi
Year 2017
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1538026

Two Major challenges in securing reliable Optimal Power Flow (OPF) operations are: (i) fluctuations induced due to renewable generators and energy demand, and (ii) interaction and interoperability among the different entities. Addressing these issues requires handling both physical (e.g., power flow...

Authors Maffei Alessio Srinivasan Seshadhri Meola Daniela Palmieri Giovanni Iannelli Luigi Holhjem Øystein Hov Marafioti Giancarlo Mathisen Geir Glielmo Luigi
Year 2017
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1378219

This investigation proposes a CPES architecture and model for engineering energy management application for smart grids. In particular, the investigation considers the implementation of the power systems state estimator (PSSE). The CPES architecture has three layers: physical, monitoring and applica...

Authors Srinivasan Seshadhri Holhjem Øystein Hov Marafioti Giancarlo Mathisen Geir Maffei Alessio Palmieri Giovanni Iannelli Luigi Glielmo Luigi
Year 2016
Type Conference lecture and academic presentation
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1358918

This paper presents a new method for independent feed control in an automated sewing cell. This is important to match the corners of the parts as well as to compensate for uncertain material characteristics and variations in the length of the parts. In this method, the feed speed for the two parts i...

Authors Schrimpf Johannes Mathisen Geir
Year 2016
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1317898

This paper presents an approach for a complete sewing process, including the material handling and preparation before the sewing operation as well as material handling after the finished sewing. The complete process is divided into different tasks. The tasks include localization and stacking of the ...

Authors Schrimpf Johannes Lind Morten Mathisen Geir
Year 2015
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1251038

This paper describes an automated sewing system that focuses on sewing of curved edge segments. The sewing cell includes an industrial sewing machine as well as three industrial robots that handle the parts during the sewing process. Based on experiences from previous work, several improvements are ...

Year 2015
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1205939

Automated sewing is a complicated task in manufacturing. Due to the non-rigid work pieces and variations in the material characteristics, sensor-based control has to be used to accomplish the sewing operation. This paper presents a strategy for velocity synchronization and corner matching in an auto...

Authors Schrimpf Johannes Bjerkeng Magnus Christian Mathisen Geir
Year 2014
Type Part of a book/report