Zhuzhou Electric Locomotive Research Institute (ZELRI) and CRRC Corp has successfully developed the permanent-magnet synchronous electric-machinery traction system, WantChinaTimes reports. For this system, the companies invested 100 million yuan (USD 16.1 million) and there were made 10 million test runs.
The system was delivered on May 16 for use on the trains traveling the No. 1 metro route in Changsha, capital of Hunan province, reports the China Economic Weekly.
The permanent-magnet traction system boasts cutting-edge technology that greatly improves the power quality, energy efficiency and controllability of trains. New cars will be more economical, comfortable and reliable.
Ding Rongjun, president of ZELRI and a member of the Chinese Academy of Engineering, said that the company has been able to turn out a 699 kW model for the new system, suited for use on a high-speed rail train with speeds of up to 500 km/h.
“We expect to adapt the system on the nation’s high-speed rail trains in the near future,” said Li Yifeng, chief designer of ZELRI, according to the report.
The system was first installed on a trial basis in late 2011 in some trains on route No. 2 of the subway in Shenyang, Liaoning province in northeastern China. The new equipment operated without any malfunctions for 70,000 kilometers of train travel as of the end of May 2015.
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