Abstract
Magnetic levitation of a metallic sphere motivates and inspires students to investigate and understand the fundamental principles of electrical engineering such as magnetic design, amplifier design, sensor and control theory. This paper describes the operation of a Pulse Width Modulation (PWM) converter in a magnetic suspension system. The PWM converter illustrates modern principles of power electronics such as PWM control, current mode control, averaged and linearized models of switched-mode converters and power supply design. The reduced size of the heat sink in the switched-mode converter compared with its linear amplifier counterpart clearly illustrates the improved efficiency. An experimental system is described which levitates a 6 cm diameter, 0.8 kg metallic sphere.
| Original language | English |
|---|---|
| Pages | 785-789 |
| Number of pages | 5 |
| Publication status | Published - 2001 |
| Event | UPEC 2001, 36th Universities' Power Engineering Conference - Swansea, United Kingdom Duration: 12 Sep 2001 → 14 Sep 2001 |
Conference
| Conference | UPEC 2001, 36th Universities' Power Engineering Conference |
|---|---|
| Country/Territory | United Kingdom |
| City | Swansea |
| Period | 12/09/01 → 14/09/01 |