As shown in in the illustration, what type...

🔍 Key Concepts

• Look at the output waveforms labeled VAOA, VBOA, VCOA, VABA and notice how the pulse widths change over time. • Identify how the converter uses a DC link (capacitor) between a source converter and a load converter to create the motor voltage. • Compare what you see to how cycloconverters, load‑commutated converters, and DC converters usually shape their output (low‑frequency segments vs. high‑frequency chopped pulses).

💭 Think About

• Do the motor phase voltages look like segments of a low‑frequency sine wave directly formed from the line frequency, or like many high‑frequency pulses whose width is being varied to approximate a sine wave? • Why is there a capacitor between the source converter and the load converter, and what does that tell you about whether the motor is being fed from a DC link or directly from the AC supply? • Which type of converter is typically associated with gate‑turn‑off thyristors and very rapid switching of many small pulses per cycle?

✅ Before You Answer

• Confirm that the output to the AC propulsion motor is composed of many narrow pulses whose width changes over each fundamental cycle. • Verify that the source side first rectifies 3‑phase AC and charges a DC link capacitor, and the load side then switches this DC at high frequency to form AC. • Eliminate any option that would normally show few large segments of voltage per cycle (rather than many small, variable‑width pulses).

As shown in in the illustration, what type of electric propulsion drive system is featured? See illustration EL-0161.

load-commutated converter

pulse-width modulation converter

cycloconverter

DC-power converter

🔍 Key Concepts

💭 Think About

✅ Before You Answer