《外文翻译-现代电力电子及电源技术的发展》.doc

附录1 　Development of modern electric electron and power technology At present, the electric electron is regarded as energy-conservation, festival just, automation, intelligent, foundation that the electromechanics is integrated, develop in high frequency of application technology, hardware structure module, green direction of properties of product. In the near future, , economy, practical that electric and electronic technology will make the technology of the power riper, realize that with high efficiency and combining together high-qualitily with the electricity. 1. Development of electric and electronic technology Developing direction of modern electric and electronic technology, it is from traditional electric electronics relying mainly on the fact that low frequency technology handles problem, change in the direction of modern electric electronics specializing in handling problem in high-frequency technology. Electric and electronic technology originates in the silicon rectification device of the beginning of the sixties at the end of the fifties, its development successively went through the era of the rectifier, went against era and frequency converter era of the becoming device, have promoted the application in a lot of new fields of electric and electronic technology. The one that developed in latter stage of the eighties and initial stage of the 1990s, complex device of power semiconductor represented by power MOSFET and IGBT and incorporating high frequency, high pressure and large electric current into an organic whole, indicate traditional electric and electronic technology has already entered modern electric and electronic era. 1.1 Era of the rectifier The industrial electricity of high-power is by the worker frequently(50Hz) The alternating current generator is offered, but about 20% electric energy consumption in the form of direct current, a typical one electrolytic (the nonferrous metals and industrial chemicals need direct current to solve) most amo