“…SSTDR has been used to determine the quality of devices used in power systems, where change in impedance may indicate a change in health. SSTDR has been used to monitor the status of power converters [ 95 , 96 ], power-switching devices [ 27 , 58 , 97 , 98 ], IGBT power modules [ 9 , 98 ], IGBT bond-wires buried cables [ 99 ], and MOSFETs [ 10 , 100 , 101 , 102 ]. For example, ref.…”