What are the advantages of AC traction for battery electric locomotives?

Date:2019-05-10     Label：

battery electric locomotive

Electric Locomotive

Locomotive

Battery Locomotive

Narrow Gauge Locomotive

Explosion-proof battery electric locomotive is an important means of transportation in production, which has already been put into our life in large quantities and has a wide range of applications. It is used in many industries, such as petroleum, chemical, natural gas, pharmaceuticals, etc. In recent years, DC can not meet the needs of use, and AC has gradually replaced DC. So what are the advantages?

Series-excited DC motor has been used for speed control of battery electric locomotives for decades. This speed regulation mode not only consumes high energy, is inefficient and has a large amount of maintenance, but also causes a series of problems such as excessive spark and short circuit caused by the contact wear of the commutator and carbon brush, Narrow Gauge Locomotive which results in excessive temperature rise and burnout of the motor, and the safety of the electric locomotive is not guaranteed. The working principle of battery-type locomotive is similar to that of overhead locomotive. The DC current provided by the battery drives the motor through flameproof bolt, controller, resistance box and other components, thus driving the train.

Recently, the CT series explosion-proof special AC traction battery locomotive has been successfully put into operation through on-site evaluation of coal safety,Narrow Gauge Locomotive and has obtained the certificate of safety label for mining products. CT series explosion-proof special AC traction battery locomotive is compared with traditional DC Narrow Gauge Locomotivetraction battery locomotive.Narrow Gauge Locomotive

The application environment is wider.

Higher reliability:

The locomotive of this system adopts three-phase AC asynchronous motor, which is not easy to be damaged because of the wireless coil on the rotor of the motor and the commutation copper head. In addition, the controller has no contact wear.

The traction performance is better:

When starting at low frequency (1HZ), the starting torque can reach 300% of the rated value, and the starting torque and traction characteristics of AC asynchronous motor can reach and exceed that of DC motor. The traction force of AC asynchronous motor is 1.6 times that of ordinary DC motor. It meets the maximum starting traction of locomotive at low speed and makes the locomotive start with heavy load strong.

The climbing ability is stronger:

The climbing ability of ordinary DC battery electric locomotive is 11 and that of locomotive with AC variable frequency speed control system is 60. Under the same sticking condition, the traction rearrangement of AC traction variable frequency speed regulating vehicle can operate on the slope of the line that the DC vehicle can not go to.

Speed regulation performance is better:

Stepless uniform speed regulation, high precision, the lowest adjustable frequency 1HZ, the lowest adjustable speed 0.5r/min.

The speed can be preset. Once a certain speed is set, even downhill driving will not exceed the set value. It can avoid accidents caused by speeding and is safe and reliable. The increase in frequency takes 5 seconds, and even if the driver suddenly accelerates, the locomotive still increases to its maximum in 5 seconds.

Our company's battery electric locomotive has the advantages of no spark detonation danger, no wires, flexible use and so on. We are waiting for your arrival here!