Abstract
The problem of eliminating harmonics in a multilevel converter in which the separate DC sources vary is considered. That is, given a desired fundamental output voltage, the problem is to find the switching times (angles) that produce the fundamental while not generating specifically chosen harmonics. Assuming that the separate DC sources can be measured, a procedure is given to find all sets of switching angles for which the fundamental is produced while the 5th and 7th are eliminated. This is done by first converting the transcendental equations that specify the elimination of the harmonics into an equivalent set of polynomial equations. Then, using the mathematical theory of resultants, all solutions to this equivalent problem can be found. Experimental results are presented to validate the theory.
Original language | English |
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Pages | 589-595 |
Number of pages | 7 |
DOIs | |
State | Published - 2003 |
Event | Eigtheenth Annual IEEE Applied Power Electronics Conference and Exposition - Miami Beach, FL, United States Duration: 9 Feb 2003 → 13 Feb 2003 |
Conference
Conference | Eigtheenth Annual IEEE Applied Power Electronics Conference and Exposition |
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Country/Territory | United States |
City | Miami Beach, FL |
Period | 9/02/03 → 13/02/03 |
Keywords
- Harmonic Cancellation
- Multilever Inverter
- Non Equal DC Sources