Optimal Power Flow in VSC-HVDC Networks for DC-ISO Constant Current Operation ISGT 2015.pdf (260.88 kB)

Optimal power flow in VSC-HVDC networks for DC-ISO: constant current operation

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conference contribution
posted on 08.03.2016, 16:40 by Francisco Gonzalez-Longatt
DC Independent System Operator (DC-ISO) is a revolutionary concept; a single entity designed to coordinate, to control and monitor the operation of the DC transmission system. It will be responsible for ensuring the reliability and security of the VSC-HVDC meshed networks in real-time and co-ordinate the supply of and demand for electricity, in a manner that avoids violations of technical and economic standards. This paper proposes a simple methodology for optimal power flow (OPF) allowing constant current operation in a series branch of the VSC-HVDC network in order to cope with one the possible DCISO objectives. One of the contribution of this paper is a methodology that allows including new operator objectives as in the OPF problem as a type linear equality constraints, it is based on nodal analysis. Proposed methodology has been thoroughly illustrated and tested with a simple 3-node MVSCDC system, and results show the validity of the proposed approach.



  • Mechanical, Electrical and Manufacturing Engineering

Research Unit

  • Centre for Renewable Energy Systems Technology (CREST)

Published in

IEEE PES Innovative Smart Grid Technologies 2015 Asian Conference (ISGT Asia 2015)


GONZALEZ-LONGATT, F.M., 2015. Optimal power flow in VSC-HVDC networks for DC-ISO: constant current operation. Proceedings of the 2015 IEEE Innovative Smart Grid Technologies - Asia (ISGT ASIA), Bangkok, Thailand, 3rd-6th November 2015.




AM (Accepted Manuscript)

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