Small-Signal Stability Analysis of Interaction Modes in VSC MTDC Systems with Voltage Margin Control (CROSBI ID 240450)
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Podaci o odgovornosti
Grdenić, Goran ; Delimar, Marko
engleski
Small-Signal Stability Analysis of Interaction Modes in VSC MTDC Systems with Voltage Margin Control
Multi-terminal Direct Current Transmission (MTDC) is an emerging and promising technology for the transmission of electricity and the main initiator of the development of MTDC grids is offshore wind generation. However, prior to their construction, a thorough investigation of different aspects of their implementation and operation is required. In this research, an MTDC grid with voltage margin control consisting of voltage source converters (VSCs) and a high frequency cable model was implemented in Matlab/SIMULINK (R2015b, The MathWorks, Inc., Natick, MA, USA). Small-signal stability analysis was carried out to investigate the sensitivity of the grid’s interaction modes to the operating point, the structure of the grid, and the selection of the voltage controlling converter. Based on the findings of these analyses, a strategy for droop control method is proposed and demonstrated.
VSC MTDC grids ; voltage margin control ; small-signal analysis ; interaction modes ; sensitivity analysis ; voltage droop control
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