Remedial Strategies of Cascaded CSIs-fed Dual Three-phase PMSM Drives under One-phase Open-circuit Faults

Recent developments of modulation and control for high-power current-source-converters fed electric machine systems

“…Previous researches of LC resonance suppression are mainly studied under the normal operation conditions for CSC-based system [17][18][19][20][21][22][23][24][25][26]. Recently, the LC resonance suppression under the fault-tolerant operation conditions of current source drives has also been conducted in [27,45] to improve the phase currents quality of the electric machine.…”

“…Recently, the LC resonance suppression under the fault-tolerant operation has been investigated in the CSC based six-phase permanent-magnet synchronous motor (PMSM) drives [27,45]. The dq-axis current values of CSIs under normal operation conditions are DC quantities to generate the steady electrical torque.…”

“…Thus, the LC resonance problem is prevented. More details of the reference design can be referred in [27,45].…”

“…The LC resonances, excited by either the grid-side LC filter or motor-side filter capacitors and motor inductors, may deteriorate the power quality and cause system instability. To avoid the possible steady-state and transient LC resonance, proper design of LC filter size as well as the optimized modulation and control schemes should be considered [17][18][19][20][21][22][23][24][25][26][27].…”