Abstract
Offshore shipboards have been one of the major transportation schemes, of which medium voltage dc shipboard integrated power systems is the main constitutes of the shipboards. DC voltage is prone to oscillation even instability due to dynamic interaction between different power converters or between converter and DC network. To explore stability of DC voltage of SIPS, the impedance model is proposed. A virtual synchronous generator (VSG) control strategy is proposed to improve inertia, damping performance of DC shipboard integrated power systems (SIPS) to guarantee stable and secure operation of the system. The principle of VSG control strategy with damping oscillation of DC voltage of SIPS is analyzed. Simulations are developed to validate the proposed conceives. Finally, the conclusion is drawn.
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