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Application of frequency conversion electric locomotive

1. the AC variable frequency speed-governing motor vehicle direct torque control using DTC, and resistance adjusting speed electric locomotive (addition, dumped) resistance adjust speed of energy consumption, so resistance adjusting speed electric locomotive than the AC variable frequency speed-governing motor vehicle energy consumption to be about 35%.

2. the AC variable frequency speed regulating motor vehicles start torque (up to 300%), DC resistance adjusting speed electric locomotive starting small (only up to 180%).

3. the AC variable frequency speed-regulating motor vehicles can park up and running again in the uphill road, down the ramp you can set any speed, avoid speed. Variable-frequency adjustable-speed motor vehicles can run on 60 ‰ ramps, resistance speed DC motor vehicles to operate only on ramp smaller than 11 per thousand.

4. DC resistance adjusting speed electric locomotive, especially in the frequent start (plus, dump the resistance shift), line power resistor heat consumed away, use DTC control of AC variable frequency speed-governing motor vehicle does not have this problem.

5. better traction: resistance speed control of DC motor characteristic soft, AC variable frequency speed-governing motor vehicle characteristics hard, focal adhesion traction under DC traction motor cars in the same small.