December 2012
Beginner
528 pages
17h 31m
English
Content preview from Introduction to Electrical Power and Power Electronics
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427Variable-Frequency Drives
VSI-PWM type. Advanced high-voltage motors optimized with the power electron-
ics drives are being developed that do not require a transformer for voltage matching.
Regarding the Load Commutated Inverter (LCI) versus VSI versus any other
power electronics converter, the debate will perhaps continue on the most optimum
design, more so when the total system with the motor is considered. In standalone
systems such as on ships, designing the transformer-less system is possible by using
a 12-phase or 15-phase generator and all the converters designed accordingly.
15.15 NOTES ON VFDs
High electrical stresses on motor insulation induced by power electronics. In many
applications using fast-switching insulated gate bipola ...
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