Wind power converter service life evaluation method based on improved rain flow algorithm and storage medium

The invention provides a wind power converter service life evaluation method based on an improved rain flow algorithm and a storage medium, and the method comprises the steps: firstly obtaining a junction temperature mission profile of a wind power converter device; determining a service life evaluation model of the wind power converter device; then, based on an improved rain flow algorithm considering load loading time and a non-closed hysteresis loop, cycle count extraction of junction temperature dynamic strength, static strength and corresponding cycle periods is carried out on the life evaluation model, and a failure period number under a corresponding junction temperature cycle and a life loss accumulation value under the junction temperature mission profile are obtained; according to the method, the improved rain flow algorithm considering the load loading time and the non-closed hysteresis loop is adopted to perform cycle counting extraction on the life evaluation model, the load history can be accura