Open-Source HVDC Control – a High-Level Perspective

Future multivendor, and multiterminal high-voltage direct-current (HVDC) grids are considered an enabling technology to efficiently integrate large amounts of renewable energy into the existing grid. However, already in today's existing point-to-point HVDC links, control and harmonic interaction issues and instabilities related to the control and protection system of the converters have been reported. The converter control software is usually black-boxed and issues are therefore solved in close cooperation with the HVDC vendor. This paper discusses a possible paradigm shift in HVDC technology: an open-source HVDC control system. In particular, it covers the control design including technical and non-technical aspects. The open-source approach can be useful to solve current as well as future control-related problems, both in point-to-point links as well as in multiterminal, and multivendor HVDC grids.
The Summary, Section 1, 2, 4, 4.4, 4.5, 5, and 6 are in major parts copied from [1].[1] I. Jahn, L. Bessegato, J. Björk, F. Hohn, S. Norrga, N. Svensson, K. Sharifabadi, and O. Despouys, “A Proposal for Open-Source HVDC Control,” in Proc. IEEE ISGT, Bucharest, 29 Sept.-2 Oct. 2019.QC 20201028