Distributed controllers for multiterminal HVDC transmission systems

QC 20171009
High-voltage direct current (HVDC) is a commonly used technology for long-distance electric power transmission, mainly due to its low resistive losses. In this paper the voltagedroop method (VDM) is reviewed, and three novel distributed controllers for multi-terminal HVDC (MTDC) transmission systems are proposed. Sufficient conditions for when the proposed controllers render the closed-loop system asymptotically stable are provided. These conditions give insight into suitable controller architecture, e.g., that the communication graph should be identical with the graph of the MTDC system, including edge weights. Provided that the closed-loop systems are asymptotically stable, it is shown that the voltages asymptotically converge to within predefined bounds. Furthermore, a quadratic cost of the injected currents is asymptotically minimized. The proposed controllers are evaluated on a four-bus MTDC system.

Dimarogonas, Dimos V.KTH,Reglerteknik,ACCESS Linnaeus Centre,Centrum för Autonoma System, CAS(Swepub:kth)u1zrhfkn (författare)
Sandberg, HenrikKTH,Reglerteknik,ACCESS Linnaeus Centre(Swepub:kth)u1i9irki (författare)
Johansson, Karl H.KTH,Reglerteknik,ACCESS Linnaeus Centre(Swepub:kth)u1h0d9k2 (författare)
KTHReglerteknik (creator_code:org_t)

Ingår i:IEEE Transactions on Control of Network Systems: Institute of Electrical and Electronics Engineers (IEEE)4:3, s. 564-5742325-5870

Av författaren/redakt...: Andreasson, Mart ...; Dimarogonas, Dim ...; Sandberg, Henrik; Johansson, Karl ...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Reglerteknik

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