Rotating electrical machines greatly suffer from insulation degradation and failure. The
adoption of wide band-gap semiconductors in Variable-Frequency Drives (VFDs) hinder the …

The use of the common mode current for stator winding insulation condition assessment has
been extensively studied. Two main approaches have been followed. The first models the …

Condition monitoring of the insulation health of electric machines is usually performed with
offline tests. In recent years, online condition monitoring methods for the groundwall …

Online methods for stator insulation monitoring have been investigated with increasing
interest in the last 15 years. These methods rely on the high-frequency behavior of the …

Online condition monitoring for stator insulation is important for reliable operation of
electrical machines. Recent studies show that the method based on the common-mode (CM) …

This paper provides a comprehensive discussion and review of cutting-edge techniques for
insulation diagnosis and monitoring in rotating electrical machines, using broadband …

Machine stator winding insulation degradation is one of the main results of machine aging. It
is non-negligible once this degradation process becomes asymmetric between phases. The …

Inverter-fed machines are widely used in many important industrial applications. However,
the machine stator groundwall and/or turn insulation are prone to failure suffering the …

Real-time assessment of ground-wall (GW) insulation condition is critical for the reliable
operation of inverter-fed motors (IFMs) and many online monitoring methods have been …

Doubly-fed induction generators (DFIGs) play a vital role in wind power generation, yet their
rotor winding insulation is susceptible to failure due to high dv/dt voltage from rotor-side …