Flexible HVDC transmission systems small signal modelling: a case study on CIGRE Test MT-HVDC grid
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
Future Flexible HVDC Transmission Systems will consist of several active and passive infrastructures including DC Power Flow Controller (DC-PFC) device. The addition of the DC-PFC to the future Multi-Terminal HVDC (MT-HVDC) grids arises some key concerns such as stability, system interoperability, and possible adverse interactions. Hence, a suitable model is necessary to conduct deep frequency domain analysis. In this context, this paper proposes a linearized model for small-signal stability analysis of flexible MT-HVDC grids in state space framework that can be straightforwardly utilized in the process of control design. In this paper, a spick-and-span, systematic and step-by-step process to derive the small signal model of all flexible MT-HVDC grid components is presented such that each sub-system is modeled individually and then all are integrated together. The derived model is cross-verified by time domain simulations of a nonlinear system model in a MATLAB/SIMULINK platform for CIGRE DCS3 MT-HVDC test grid.
CitationHeidary Yazdi, S., Rouzbehi, K., Candela, J., Milimonfared, J., Rodriguez, P. Flexible HVDC transmission systems small signal modelling: a case study on CIGRE Test MT-HVDC grid. A: Annual Conference of the IEEE Industrial Electronics Society. "IECON 2017: 43rd IEEE Annual Conference of the IEEE Industrial Electronics Society: China National Convention Center, Beijing, China, 29, October-01 November, 2017: proceedings". Institute of Electrical and Electronics Engineers (IEEE), 2017, p. 256-262.