Thyristor Controlled Power For Electric Motors
Power Electronics and Electric Rotary Drives – Introduction – Power Electronics – Thyristor – Electric Rotary Drives – DC Drive – AC Drive – Choice of Drive and Control System – Literature and Bibliography – Thyristor – Introduction – Semiconductor – Diode – Transistor – Shutdown – Linear Region – Saturation – Thyristor – Thyristor- Diode Model – Two Transistor Thyristor Model – Thyristor Characteristics – Back Biased Thyristor – Forward Biased and Blocking Thyristor – Forward Biased and Conducting Thyristor – Illumination On – Gate On -Breakdown Voltage Enabled – Thyristor Disabled – Quenching Methods – Natural Switching – Reverse polarity deactivation – Gate deactivation – SCR deactivation time – SCR ratings – Voltage ratings – Current ratings – Power ratings – Forward conduction loss of load current – Forward leakage current loss – Reverse leakage current loss and turn-off loss – Gate excitation loss.