科研之友
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摘要
With the purpose of improving the frequency support capability of high voltage direct current (HVDC) transmission equipment and ensuring the stable and reliable operation for the receiving end power grid, a virtual synchronous generator (VSG) control algorithm for high voltage direct current converter was proposed in this paper. The virtual synchronous generator control method is analyzed in detail, and the small-signal model of grid-tied high voltage direct current converter is established, and further established the small signal-model of the three-area power system. On the basis of the proposed models, considering the factors such as different short circuit ratios, decoupling performance, stability, dynamics, the selection principle of inertia factor J and damping factor D of virtual synchronous generator is proposed. Finally, the effectiveness of the proposed inertia and damping coefficient selection method is verified by simulation.
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