Xinhuanet changsha on October 11 (reporter Yang built) recently, the Chinese car zhuzhou institute of independent research and development of the braking energy feedback system in the new moon yellow railroad loading operation.This system has a strong energy saving effect, can save electricity for each locomotive 1.5 million yuan a year, in the car described in zhuzhou, its technology has become a world leader. New moon yellow railroad, is the Chinese article 2 the term "western coal shipped east channel slope line is longer, the line of shaoshan type 4 dc locomotive.Because this type of locomotive brake system USES is the air brake and braking resistance of the way of combining the resistance braking consume the energy generated is made in vain.After more than a year of efforts, in the car with the railway operator by zhuzhou shenhua group cooperation developed dc locomotive braking energy feedback system. "Is through a series of technology, energy feedback system will consume energy recovery to high-voltage online before, continue to use, the system is equivalent to a" mobile generators "role."According to China's car in zhuzhou engineer, the set of energy feedback system innovation with four quadrant voltage type inverter as the core, the four quadrant converter was applied to pay - dc electric locomotive main circuit, this is the world's unique technology, reach the world leading level. 　　Measured according to the expert inside course of study, the loading of the "energy saving artifact" on shaoshan 4 locomotives are generating capacity in 8300 degrees, up to 11400 degrees, will save about 1.5 million yuan a year down each car electricity bills.According to the new moon yellow railroad runs 153 sets of shaoshan type 4 locomotive, product batch is expected after loading, will save electricity charges 229 million yuan each year.The country currently online operation of shaoshan 4 locomotives for about more than 1400 units, the future energy saving prospect.