Syllabus
Overview of Power Train Architectures – Energy Sources – Power Transmission Systems – Load. Electric Drive systems – Mechanical dynamics and multi-quadrant operation – stability and power rating – Load characteristics- Thermal models of electrical machines. Determination of motor rating based on thermal performance.
Induction Motor Drive – steady state equivalent circuit – phasor diagram – variable frequency supply – V/f control – voltage source inverter – constant air gap flux – field weakening -Field Oriented Control – space vector – direct orientation – indirect orientation – stator flux – rotor flux – airgap flux – flux torque decoupling direct torque control – flux observer – speed observer – sensorless control – Induction Generator – slip power recovery – static kramer – static scherbius – DFIM – modes of operation – equivalent circuit – active power control – reactive power control – vector control – Synchronous Motor Drive – equivalent circuit – starting – phasor diagram – power factor – PMSM – VVVF control – open loop -V/f – self-control – rotor configuration field oriented control – surface mounted PM – constant torque – flux weakening – interior PM – MTPA – sensorless control – BLDC Motor – EMF – torque – VSI – half wave – full wave – speed control – torque ripple – sensorless control – Switched Reluctance Motor – principle – operation modes – converter control – Axial Flux Machine – principle and operation.