Abstract
This chapter presents the most popular dc -ac inverter topologies, two -level and three -level NPC inverter, used for the electric drives. It focuses on the SPWM and SVPWM methods for the two -level and three -level NPC inverters. The emphasis is given to the implementation aspect of these PWM methods. It is shown that the SVPWM method can be implemented in the same way as the SPWM method with small modification in the sinusoidal reference signals. Furthermore, the problem of neutral -point voltage unbalance associated with the three -level NPC inverter is discussed. A popular method to balance the neutral -point voltage is also discussed.
| Original language | English |
|---|---|
| Title of host publication | Modeling, Simulation and Control of Electrical Drives |
| Editors | Muhammed Fazlur Rahman, Sanjeet K. Dwivedi |
| Publisher | Institution of Engineering and Technology |
| Publication date | 1. Jan 2019 |
| Pages | 63-100 |
| ISBN (Electronic) | 9781785615870 |
| Publication status | Published - 1. Jan 2019 |
| Externally published | Yes |
| Series | IET Control, Robotics and Sensors series |
|---|---|
| Number | 118 |
Bibliographical note
Publisher Copyright:© The Institution of Engineering and Technology 2019.