In July 14th, Dalian's first car development speed of 160 km (320 miles) AC drive passenger locomotive line, then carry out vehicle test of all types of work.
At the present stage of China Railway Transportation Based on high-power electric locomotive traction locomotive load, is an important supplement to spur traction locomotive especially; also need to bear the northeast of Qinghai Tibetan Plateau, northwest, and other regional power grid maintenance difficult area transport task.
In recent years, the railway passenger volume in China has been increasing greatly. In the first half of this year, the number of railway passenger transport increased by 12.4% year on year. The passenger locomotive with advanced performance, reliable operation, energy saving and environmental protection still has a large space for the development of the market. For the railway passenger transport, the diesel locomotive always has the contradiction between the locomotive axle load and the speed demand. Build a new diesel locomotive platform which is suitable for power level and traction capacity and transportation needs, and develop the diesel locomotive suitable for China's railway needs under this platform. The speed of 160 km / h AC drive passenger diesel locomotive was born in this context.
Compared with the previous diesel locomotive, this new speed has a significant advantage.
Excellent performance, technology lead, one can pull 18 cars at a time
The speed of 160 kilometers per hour, AC drive passenger diesel locomotives, take into account the reasonable matching of axle load and power, adopt double fixed reconnection mode, traction 18 cars at a time, the maximum speed of operation is 160km/h. The loading power of the diesel engine is 2 x 3500kW, and the axle load is 23 tons. The locomotive has the direct power supply function of the train, and the system will supply the middle DC link voltage from the main traction circuit, which can be transformed into a stable DC600V supply bus. The locomotive with a large number of new technologies in the design, including the platform of the vehicle layout, lightweight vehicle design, independent of the main and auxiliary integrated AC drive technology and automatic control technology, computer network technology, the platform of the starting wheel drive system development and application of cooling technology, separation technology development and so on. Promote the development of internal combustion engines and a new breakthrough.
The layout is reasonable and the maintenance space of the locomotive is bigger.
Dalian Zhongche give full play to the company and design of power internal combustion engine, the advantages of combining the design concept of the electric locomotive and vehicle used in the corridor and corridor on both sides of the middle parts of the layout structure, repair and maintenance of a larger space, and use the characteristics of electric locomotive equipment integration, improving the assembly efficiency of the vehicle; wiring. Take the power line and control line are arranged in the form, avoid the problem of electromagnetic interference; driving device and general electric locomotive, unified and electric drive device. The intermediate DC link instead of the former diesel locomotive provides the power supply by the small diesel generator set, which fully saves the installation space of the equipment.
Flexible control, emission reduction and increase efficiency, locomotive more energy saving and environmental protection
Compared with the traditional passenger locomotive, the vehicle AC drive technology, the main transmission efficiency than DC car increased by 8 percentage points; in the continuation of a 6000 HP locomotive locomotive platform high adhesion utilization, low fuel consumption, low emission, convenient operation and other advantages, is the main and auxiliary locomotive integrated AC drive system, the energy of all obtained from the DC link the main circuit of the apparatus can be simplified, also realizes the auxiliary load control is more flexible, the energy feedback system of electric locomotive, the more energy saving and environmental protection