Partial discharge monitoring method of molten salt heat storage system

The invention provides a partial discharge monitoring method and device for a molten salt heat storage system, electronic equipment and a storage medium, and the method comprises the steps: obtaining a time domain cumulative energy function and a frequency domain cumulative energy function corresponding to a partial discharge signal of the molten salt heat storage system, determining a time domain width characteristic parameter and a time domain gradient parameter of the time domain accumulative energy function and a frequency domain width characteristic parameter and a frequency domain gradient parameter of the frequency domain accumulative energy function according to preset negative slope straight lines and definition domains corresponding to the time domain accumulative energy function and the frequency domain accumulative energy function respectively; and clustering a four-dimensional space vector composed of the time domain width characteristic parameter, the frequency domain width characteristic parame