Full-direct-current ship bus voltage floating adjustment method and system considering inverter loss

The invention provides a full-direct-current ship bus voltage floating adjustment method and system considering inverter loss. The method comprises the steps that S1, energy loss values of an inverter under various preset bus voltage conditions are calculated; s2, converting the energy loss values of the inverter under various preset bus voltage conditions into oil consumption; s3, comparing the fuel consumption converted by the energy loss value of the inverter with the fuel consumption value of the diesel engine, judging whether the current fuel consumption map needs to be updated or not, correcting and updating the fuel consumption result map by utilizing the energy loss of the inverter when the current fuel consumption map needs to be updated, and drawing an updated minimum fuel consumption operation curve by utilizing the current result map; and S4, on the basis of the current minimum fuel consumption operation curve, an adjustment scheme of the floating bus voltage under different working conditions is