Optimized locomotive traction system

Optimized locomotive traction system

  • CN 1,807,142 B
  • Filed: 07/23/2005
  • Issued: 03/20/2013
  • Est. Priority Date: 07/23/2004
  • Status: Active Grant
First Claim
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1. high height above sea level rail locomotive that is suitable at the more reliable operation of high height above sea level, wherein said high height above sea level rail locomotive comprises the semiconductor power control element, and wherein because the described high height above sea level rail locomotive of described high height above sea level will be exposed to high level cosmic radiation, thereby compare with the low height above sea level locomotive with the identical semiconductor power control element that is operated in a DC bus voltage, tend to damage described semiconductor power control element, and comprise having the first effective motor volume, the traction electric machine (502) of the mechanical horsepower of the preset range that is enough to promote described high height above sea level rail locomotive is provided, and described high height above sea level rail locomotive comprises:

  • Power generation assembly;

    A plurality of traction electric machines (502) with the wheel mechanical connection that supports described high height above sea level rail locomotive;

    AndElectrical power transmission system, be used for electric power is transferred to described a plurality of traction electric machine (502) from described power generation assembly, described electrical power transmission system comprises the DC bus that is electrically connected with described traction electric machine (502) and power controller, described power controller is used for controlling the power delivery on the described DC bus, described traction electric machine (502) has second effective motor volume, wherein said second effective motor volume greater than described first effective motor volume so that the relatively described DC bus voltage of the DC bus voltage of described high height above sea level rail locomotive be lowered, produce simultaneously corresponding with the mechanical horsepower scope of described low height above sea level locomotive and be enough to promote at high height above sea level the mechanical horsepower scope of described high height above sea level rail locomotiveThus, those impacts on the semiconductor power control element in the combined effect of the described semiconductor power control element described low height above sea level locomotive when being operated in low height above sea level that cause by the DC bus voltage of described high height above sea level rail locomotive with by described cosmic radiation are corresponding, in order to reduce the probability failure of semiconductor power control element in the described high height above sea level rail locomotive.

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