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IMPLEMENTATION OF AN ADVANCED WHEEL CREEP CONTROL WITH SEARCHING STRATEGY ON A LIGHT RAIL VEHICLE
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| Author(s) |
H. J. Schwartz; R. Krefic |
| Abstract |
Due to sufficient CPU capacity of modern drive control systems an advanced wheel creep control could be tested on a low floor tram without additional hardware effort. The "C" software module is integrated into the existing software structure running on a MICAS-S® traction controller. Based on the fast torque control principle ISC a speed controller for each individual drive is installed. A searching strategy varies the reference speed in order to find the maximum of the available adhesion. On dry rails the wheel creep control remains in a supervision mode until the adhesion between wheel and rail decreases. By simulation tests of the original software module with Matlab/Simulink the commissioning time was very short. The wheel creep control is in daily operation in low floor trams with IGBT inverters powering both AC motors with hollow shaft drives and classic wheel sets and also AC hub motors providing single wheel drives. |
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| Filename: | Unnamed file |
| Filesize: | 426.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2015-12-10 by System |
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