December 2016
Intermediate to advanced
210 pages
5h 1m
English
Content preview from Pulse Width Modulation
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Nomenclature and Abbreviations
Nomenclature
| Vdc | DC link voltage |
| M | Modulation index |
| f | Frequency |
| fs | Switching frequency |
| f1 | Fundamental frequency |
| Vref | Reference Voltage |
| n | Level inverter |
| SL | Lower switch |
| SU | Upper switch |
| C1, C2, C3 | Capacitors |
| Vao, Vbo, Vco | Pole voltages |
| Vab, Vbc, Vca | Line-to-line voltages |
| Va, Vb, Vc | Line voltages |
| Van, Vbn, Vcn | Phase voltages |
| Vno | Common mode voltage |
| Iga, Igb, Igc | Gate currents |
| Ia, Ib, Ic | Stator currents of induction motor |
| Id, Iq | d- and q-axis stator currents |
| Irms | RMS current |
| ω | Angular speed |
| ωm | Rotor speed of induction motor |
| ∅ | Flux |
| ma | Amplitude modulation ratio |
| mf | Frequency modulation ratio |
| dv/dt | Change in voltage |
| Ta, Tb, Tc | Switching times |
| Ts | Sampling time |
| P, O, N | Switching states of three-level ... |
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.