Abstract
The concept of high-voltage DC transmission using a multiterminal configuration is presently a central topic of research and investment due to rekindled interest in renewable energy resource integration. Moreover, great attention is given to fault analysis, which leads to the necessity of developing proper tools that enable proficient dynamic simulations. This paper leverages models and control system design techniques and demonstrates their appropriateness for scenarios in which faults are applied. Furthermore, this paper relies on full-bridge submodule topologies in order to underline the increase in resilience that such a configuration brings to the multiterminal DC network, after an unexpected disturbance. Therefore, strong focus is given to fault response, considering that converters use a full-bridge topology and that overhead power lines connect the terminals.
Highlights
There is a growing interest towards renewable sources and the integration of such sources in the power system. This interest is even more strongly underlined by the increasing number of electric vehicles, which leads to an increase in electricity demand
As a mechanical switch is preferred over a DC circuit breaker, due to the fact that DC circuit such, a mechanical switch is preferred over a DC circuit breaker, due to the fact that DC
One aspect, which was promoted in the paper, related to the use of detailed equivalent models, which enable access at a submodule level and allow for changes to be made regarding IGBT conduction/blocking internal resistance
Summary
There is a growing interest towards renewable sources and the integration of such sources in the power system. This interest is even more strongly underlined by the increasing number of electric vehicles, which leads to an increase in electricity demand. Investments in hydroelectric, solar and wind power plants is encouraged [1,2]. Such plants are seldom near large electricity consumers. Because of the significant distance between generation plants and large consumers, the best technical and economical solution is the use of high-voltage direct current transmission (HVDC), in a multiterminal layout
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