Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizen grass Luo Yuzi for the clue delivery! CTOnews.com March 13 news, according to Chinanews.com, CRRC Zhuzhou Electric Locomotive Research Institute Co., Ltd. (hereinafter referred to as "CRRC Zhuzhou Institute") announced today that China's first demonstration line of electrified highway was completed in Zhuzhou, Hunan Province, filling the gap in China's electrified highway field and opening up a new route for heavy road freight transport.

The demonstration line, led by CRRC Zhuzhou and developed in cooperation with Tsinghua University and Sany Group, consists of two-way lanes, 7 meters wide, 1.8 km catenary and 1 box-type substation with 53 props. The line covers a variety of road conditions, such as straight lines, bends, ramps, concave and convex roads, wading and immersion test areas, and provides rich simulation scenarios for testing vehicle performance and system reliability. To provide reference and basis for later commercial operation.

The electrified highway system draws lessons from the overhead catenary power supply mode of rail transit, and combines the core technologies such as cloud dispatching, vehicle-to-ground communication, vehicle electrical, ground power supply and so on, to realize the function reconstruction and greatly improve the freight efficiency.

"the key technology of the electrified highway system comes from China's standard high-speed rail system, which aims to solve the carbon reduction problem of bulk cargo transportation with large capacity and complex environment on fixed lines." Xu Shaolong, general manager of the comprehensive energy division of the CRRC Zhuzhou Institute, said that the electrified highway demonstration line consists of two parts: the ground system and the vehicle system. The ground system is mainly responsible for electric energy conversion and transmission, vehicle formation and transportation organization cooperative management; through the pantograph device, under the action of control and converter system, the vehicle system converts electric energy into power and drives the vehicle to drive on the highway. and achieve dynamic charging.

The traditional road freight transportation system needs to consume a lot of fuel, and there are some problems, such as scattered, inefficient and high carbon emissions. On the other hand, the electrified highway system adopts the overhead catenary mode of rail transit, which uses the DC1500V power supply system, which is 75% lower than the resistance loss of the DC750V power supply system. It adopts the way of obtaining power directly from the power grid to achieve a sustained and stable energy supply, which is more effective than pure electric heavy trucks using power batteries to avoid the low temperature effect, and the energy efficiency is more than 6% higher.

Considering that the line may be complex and changeable, the transport vehicle adopts the dual-source power mode. In addition to getting power directly from the power grid, it is also equipped with green power batteries. When there is an emergency, the vehicle can drive independently from the power grid, which is more flexible and fast. In addition, the whole system also supports a variety of clean energy access, such as scenery green, and has the advantages of economical and efficient, real-time current collection, mature technology, not affected by extreme weather and so on.

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