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

CTOnews.com, January 30, according to the release of China Railway Corporation, with the recent completion of the low temperature discharge optimization test of battery system on two locomotives FXN3D-0001 and 0002, the low temperature test of 3000 horsepower hybrid (remixed) shunting locomotive has been completed, and the lowest temperature during the test period is-42 ℃.

FXN3D 3000 horsepower hybrid (heavy mixing) shunting locomotive is a new generation of revived shunting locomotive of Chinese railway characterized by green and low carbon. The locomotive is powered by a large capacity lithium ion power battery with a power mixing ratio of 1:1 and a diesel engine. The power battery meets the basic daily operation needs of the locomotive. The diesel engine can only charge the power battery in the best economic zone, and it can also output power synchronously. Achieve the goal of energy saving, emission reduction and noise reduction, reflecting the intelligent, green, modular and serialized characteristics of the new generation of traction equipment. CTOnews.com learned that the locomotive has entered the whole vehicle test stage.

During the test period, the function of each system of the locomotive is normal, and the strong performance of the locomotive is still played in the cold environment. The type test points are all passed at one time, and the test results meet the requirements of the locomotive type test outline. At the same time, combined with the low temperature test, the test group also carried out a number of research tests on the low temperature charge and discharge performance of the power battery, the low temperature charging protection logic and thermal guarantee heating capacity of the lithium iron phosphate battery, the heating performance of the air conditioner at low temperature and the temperature rise rate of the cab, etc. a large number of valuable test data have been collected for the low temperature operation of hybrid locomotives.

In order to fully verify the performance of the locomotive, the test needs to fully verify the two kinds of converter cabinets, four kinds of battery systems and two battery thermal protection systems installed on the two locomotives, and the relevant teams have completed various low temperature test tasks with high quality. the complete vehicle test of the locomotive will be completed in 2023.

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