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自1987年，美国GM公司和德国门子公司进行国际合作以来，开发出了3800～6000英制马力的SD60MAC、SD70MAC、相同构架的SD80MAC和SD90MAC型交流传动货运机车，DE30MAC型等客运机车，亦成功地打入了北美内燃机车市场。1993年至今，北美十大铁路公司共订购了1866台交流传动内燃机车。其中GM公司865台，GE公司1001台。新型大功率交流传动内燃机车的开发，适应了北美铁路重载煤列和准高速客运的发展要求。文中详细介绍了GM和西门子合作开发大功率新型交流传动机车的发展情况、各模件的结构特点及机车的主要技术参数。文中提出了一个新的“通用构架式”机车的概念：即机车有一个总的、基本的、可通用的结构设计；采用交流传动；功率可从4300到6000英制马力；柴油机和主发电机可以变更，而所有的机械部分和电气设备均保持不变。
Since 1987, the international cooperation between American GM and German subsidiary has developed the SD60MAC, SD70MAC with 3800 ~ 6000 British horsepower, the same structure of SD80MAC and SD90MAC AC drive freight trains, DE30MAC passenger trains, etc., have also successfully Into the North American diesel locomotive market. Since 1993, a total of 1866 AC drive diesel locomotives have been ordered by North American top ten railway companies. Among them, 865 are GM companies and 1001 are GE companies. The development of new high-power AC drive diesel locomotive has adapted to the development requirements of heavy coal column and quasi-high-speed passenger transport of North American railway. The paper details the development of cooperation between GM and Siemens to develop new high-power AC drive locomotives, the structural features of each module and the main technical parameters of the locomotive. The paper proposes a new concept of a “general-purpose frame” locomotive: a locomotive has a general, basic and versatile structural design; an AC drive; power from 4300 to 6000 hp; a diesel engine and a main generator Change, and all mechanical parts and electrical equipment remain unchanged.