Lunch seminar: Solving the grid problem

Lina Bertling Tjernberg, KTH
Power grid technologies for a sustainable future

IlkaJahn, KTH
A secure European grid for the future

Yvonne Ruwaida, Vattenfall
Unlocking flexibility meeting the capacity challenge

Time: Thu 2019-03-28 12.00 - 13.00

Location: KTH Entré

Free lunch sandwich for the 50 first students!

Lina Bertling Tjernberg KTH:

Power grid technologies for a sustainable future.

The electric power system is being modernized to enable a sustainable energy system. New developments include possibilities and challenges with generation, delivery and usage of electricity as an integrated part of the energy system. This involves new forms of usage of electricity, e.g. for transportation and demand response, and to the updating of existing electricity infrastructures. For electricity generation the trend is toward new large-scale developments, like offshore wind farms, as well as small-scale developments like rooftop solar energy. At the same time, digitalization of society is creating new opportunities for control and automation as well as new business models and energy related services. The overall trend for technology developments is new possibilities for measurement and control. 

Ilka Jahn KTH:

A secure European grid for the future

Recent demand of renewable energy generation has placed new requirements on the flexibility of transmission systems. Renewable energy generation can be far away from the load centers, therefore long-distance high power transmission can be required. This can be achieved by using high-voltage direct-current technology (HVDC). Today, point-to-point HVDC links exist and are embedded into the existing AC (alternating current) grid. This can be inefficient, for example in case the HVDC link connects to an offshore wind farm and the wind is not blowing. However, with HVDC grids, the existing infrastructure could be used for other purposes in case of no or little wind, e.g. energy trading with neighboring countries. One important aspect is protection of such a HVDC grid to avoid a large-scale blackout in case of faults. This lunch seminar gives an overview of the corresponding research activities at KTH (EECS-Power Electronics group).

Yvonne Ruwaida Vattenfall:

Titel: Unlocking flexibility meeting the capacity challenge

New trends of housing, digitalization and a fossil-free welfare state changes the demand of power rapidly. Infrastructure of grid are long-term investments planned in a slow pace. Meeting the challenge demands innovation and change management. 

Mars 2019 Solving the grid problem poster.jpg (jpg 403 kB)