船舶电缆老化预测研究

Study on Aging Prediction of Ship Cable

为了预测船舶电缆的老化状况,首先对船舶电缆进行建模,分析船舶电缆的老化过程,得出阻抗和电弧电流的变化规律,然后利用卡尔曼滤波算法对电缆老化过程中的阻抗值进行预测,依据预测的阻抗值和当前阻抗值的残差来检测电缆工作状态;通过检测电弧电流的变化,预测船舶电缆老化产生前期故障的临界状态。仿真实验表明该预测方法具有可行性。

In order to predict the aging of the ship cable,the ship cable was modeled and the aging process of the ships cable is analyzed.The variation law of the impedance and the arc current was obtained.Then the Kalman filter algorithm is used to predict the impedance value of the cable aging process.The impedance state is predicted by the residual value of the impedance value and the current state impedance value of the current state,and the critical state of the pre-failure is generated by the residual detection cable fault.Through detecting the change of the arc current,critical state of aging ship cable incipient faults were identified.Simulation results show that the proposed method is feasible.