Potential issues arising from too stable discretization
The Simscape Power systems Toolbox from Simulink uses the Tustin Backward-Euler method to fix this problem. 

I hate to simply post links, but here it is https://www.mathworks.com/help/physmod/sps/powersys/ug/simulating-discretized-electrical-systems.html

"To perform a discrete simulation, open the powergui block and set Simulation type to Discrete, and specify the sample time. The electrical system is discretized using the Tustin/Backward Euler (TBE) method. This method combines the Tustin method and the Backward Euler method. It allows you to simulate snubberless diode and thyristor converters. It eliminates numerical oscillations seen with the Tustin method and provides better accuracy than the Backward Euler method.

The TBE discretization method combines the accuracy of the Tustin method and the numerical oscillation damping property of the Backward-Euler method. It allows you to simulate power electronic circuits with virtually no snubber, using purely resistive snubbers with a very large resistance value resulting in negligible leakage currents."

EDIT : From what I understand, they generally use the tustin method but switch to backward Euler when there is a quick variation such as a switch being open in series with an inductor for example.