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Development, calibration and simulation of generic VSC-HVDC high level controls for DC grid Simulation
KTH, School of Electrical Engineering (EES), Electric Power Systems.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Energy security concerns and the environmental impact of conventional power generation

sources has led to an increase in renewable energy penetration worldwide. Power transmission

from remote generation sites to consumers over long distance is most efficient using high

voltage direct transmission lines. Therefore, long distance power transmission and the

integration of power generated by renewable energy resources are considered as key aspects

in the development of sustainable energy systems capable of secure and stable electric power


Voltage source converter based high voltage direct current (VSC-HVDC) long distance power

transmission lines are needed to incorporate renewable energy sources to the grid. The

significance of the research work in this field is obvious, however, advances in the area are

detracted because of the lack of available VSC-HVDC system models. The purpose of this

thesis is to provide generic models of VSC-HVDC controls and meshed networks. This thesis

studies VSC-HVDC control systems and improves high level controls for the VSC. A point to

point and four terminal VSC-HVDC systems are modeled in MATLAB/Simulink. Both

offline and real-time simulation models are developed. The controllers are tuned and then

tested in the developed test systems with several test cases through offline simulations in

MATLAB/Simulink. All the models are modified and transferred to Opal-

RT’s real time

targets and simulations are carried out for several test cases. Improved controller simulation

results along with results from the conventional controllers are contrasted.

Place, publisher, year, edition, pages
2014. , 81 p.
EES Examensarbete / Master Thesis, XR-EE-EPS 2014:002
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-160545OAI: diva2:790289
Educational program
Master of Science - Innovative Sustainable Energy Engineering
Available from: 2015-02-24 Created: 2015-02-24 Last updated: 2015-02-24Bibliographically approved

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