COPE

Main objectives:

- To understand the reactive power characteristics of various types of wind turbines, PE-based applications and cable integrated grid.

- To find optimal locations, capacities and combinations of reactive compensation devices in a power system with various types of wind turbines in the transition towards 100 % PE and UC dominated system.

- To develop optimal reactive power dispatch method for the power system in the transition.

- To establish model for short circuit analysis of the power system in the transition.

- To conduct short circuit analysis and test the performance of the existing protection system in the power system transition.

- To develop solutions for secure protection of the Danish power system in transition and in a future with PE and UC domination.

- To validate the proposed methods via hardware-in-the-loop platform.

Project description

Due to the increasing application of renewable energy generations, active loads, FACTS and HVDC, it is expected that the Danish power system is in a transition towards a power system with a very high level (even 100 %) of power electronics integration. 

On the other hand, the Danish government has decided that a large part of the Danish power transmission system (i.e. all transmission lines with a rated voltage level equal to or lower than 150 kV) should be transformed into underground cables. 

Such two transitions of the Danish power system not only drastically changes its very important characteristics, e.g. the reactive power, voltage control characters and the short circuit capacity, but also makes the future Danish power system a unique case that has not been well studied before.

This motivates the idea of the project to comprehensively investigate the reactive power characteristics and the protection performance of the future Danish power system towards 100 % PE and UC dominated, and develop relevant planning and operation methods to secure a smooth transition.

Key figures

Period:
2017 - 2020
Funding year:
2017
Own financial contribution:
1.20 mio. DKK
Grant:
6.72 mio. DKK
Funding rate:
85 %
Project budget:
7.92 mio. DKK

Category

Programme
EUDP
Case no.
64017-0047

Participants

Aalborg Universitet (Fredrik Bajers Vej) (Main Responsible)
Partners and economy
Partner Subsidy Auto financing
Aalborg Universitet (Fredrik Bajers Vej) 4,55 mio. DKK 0,51 mio. DKK
SINTEF 1,36 mio. DKK 0,15 mio. DKK
DIgSILENT 0,81 mio. DKK 0,54 mio. DKK

Contact

Kontakperson
Zhe Chen
Comtact information

Pontoppidanstræde 111 
9220 Aalborg Ø
99 40 92 55

Contact email
zch@et.aau.dk