Motor cable effect on the converter fed AC motor common mode current

Analysis of Impact of Design Solutions of an Electric Machine with Permanent Magnets for Bearing Voltages with Inverter Power Supply

“…The use of shielded power cables between the converter and the electrical machine plays a very important role in limiting the imbalance of voltage and bearing currents [17].…”

Immunity of Residual Current Devices to the Impulse Leakage Current in Circuits with Variable Speed Drives

“…1). The following capacitances are distinguished in circuit with variable speed drives [8], [9]: C T -capacitance between the line supply and earth (shortcircuited if the neutral point is earthed), C Y -interference suppression capacitance at the drive input, C C -capacitance of the IGBT components between conductors and enclosure connected to earth, C S -capacitance between the output conductors and earth (depending on the length of the cables and their type -shielded, unshielded), C M -capacitance between the motor windings and earth (depending on the motor construction and rating). In the earthed low voltage system the highest value of leakage current components (I 1 , I 2 ) circulate across the capacitances as in Fig.…”

Estimation of Parasitic Capacitance of Common Mode Noise in Vehicular Applications: An Unscented Kalman Filter-Based Approach

“…In [10], an EMI model has been proposed for the cable and return current path including the parasitic capacitances of a motor drive system and cables in a hybrid EV. In [11], an effective EMI model has been developed to analyze the impacts of the AC motor feeding cables parameters on the parasitic capacitances and CM current. In [12], the impacts of different cable arrangements and lengths on the generated transient overvoltages and CM currents have been characterized in PWM motor drives.…”