Marine diesel generators are widely and significantly used in the field of navigation. Firstly, it provides electrical support for the lighting, navigation, communication and other equipment of the ship, ensuring its safety and smoothness during navigation. Secondly, marine diesel generators also provide electricity for the ship's living facilities, such as air conditioning, hot water, etc., providing a comfortable living environment for crew and passengers. In addition, in some special circumstances, such as adverse weather or emergency situations, marine diesel generators can also serve as backup power sources to provide emergency power support for ships.