Question

Which one of the following load is suitable for load commutation in Single phase Half-bridge inverter?

(a) R-L load

(b) R-L-C overdamped

(c) R-L-C underdamped

(d) L-load

I have been asked this question by my school teacher while I was bunking the class.

Enquiry is from Solid-State Devices in chapter Introduction to Solid-State Devices of Electric Drives

Answer 1

Correct answer is (c) R-L-C underdamped

The explanation: R-L-C underdamped are leading power factor loads. They do not require any forced commutation technique. Anti-Parallel diodes help in the commutation process.