Problemy sterowania bezreduktorowego układu napędowego drzwi kabinowych dźwigu osobowego z silnikiem BLDC
Artykuł w czasopiśmie
| Status: | |
| Autorzy: | Kolano Jan |
| Rok wydania: | 2011 |
| Wersja dokumentu: | Drukowana |
| Język: | polski |
| Numer czasopisma: | 90 |
| Strony: | 11 - 16 |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The basic structure of modern drive of lift car doors consists of a permanent magnet DC motor and one-stage planetary gearbox. To reduce the maintenance to the minimum permanent magnet DC motors are often replaced by PM BLDC motors. Although this structure is much more sophisticated it still needs planetary gearbox to reduce rotary speed. In small drive systems (less than 500 Watts) one-stage planetary gearbox has mechanical efficiency less than 70 %, so that it affects negatively on energy consumption of the whole drive system. To reduce main disadvantages of most popular drive systems widely used in lift car doors, the new drive structure based on slow speed gearless BLDC motor has been presented. In this paper basic problems with speed control feedback have been described. To simplify the drive structure rotary encoder was eliminated from the motor speed feedback and replaced by the rotor position signals and special routine, that calculates the actual speed as a function of the rotation time. |
