Research Article
Optimizational Mathematical Modeling Methods of DC Traction Power Supply System for Urban Mass Transit
Table 1
The main parameters of Guangzhou Metro Line 4.
| Name | Value |
| Number of pulses | 24 | Capacity of rectifier unit | 2 x 2200 kVA | Ration of rectifier transformer | 33 kV/1180 V | Through impedance of rectifier transformer | 8% | Half-through impedance of rectifier transformer | 6.5% | Rated voltage of DC traction power supply system | 1500 V | Length of line | 46.3 km | The resistance per unit length of contact line system | | Resistance per unit length of rail | | Leakage resistance from the rail to the ground | 15Ω∙km | Total weight of the train | 175t | Maximum running speed of train | 90 km/h | Train tracking interval at recent rush hour | 450 s |
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