改进D-S证据理论在舰船直流电机故障诊断的应用

Application of improved d-s evidence theory in fault diagnosis of ship dc motor

现代信息技术水平明显提升,促进了现代船舶行业的可持续发展。特别是将电力电子技术合理应用于直流电机中,有效地改善了舰船直流电机运行的性能与效果,为舰船的正常航行提供了必要保障。但在长期海上航行的过程中,受诸多因素影响,舰船直流电机的故障发生几率也明显提高,不利于舰船的安全可靠航行。在这种情况下,本文将改进D-S证据理论合理应用于舰船直流电机故障诊断过程中,能够及时且准确地确定具体故障与故障定位,进而采取具有针对性处理措施,以保证舰船始终处于正常行驶状态。

The level of modern information technology has been significantly improved,which has promoted the sustainable development of the modern shipbuilding industry.Especially for ships,the power electronic technology is reasonably applied to DC motors,which effectively improves the performance and effect of the ship’s DC motor operation,and provides the necessary guarantee for the normal navigation of the ship.However,in the process of long-term maritime navigation,due to many factors,the probability of failure of the DC motor of the ship is also significantly improved,which is not conducive to safe and reliable driving of the ship.Under this circumstance,this paper will improve the DS evidence theory and apply it to the fault diagnosis process of ship DC motor.It can timely and accurately determine the specific fault and fault location,and then take targeted measures to ensure that the ship is always in the ship.Normal driving state.