【摘要】 变频技术是电力电子技术的主要组成部分 ,它主要应用在交流电机的调速和供电电源两个领域。变频技术的应用 ,极大地减小了装置的体积 ,提高了效率 ,产生了巨大的经济效益。随着人类科学技术日新月异的发展 ,变频技术应用也愈加广泛 ,它促进了其他技术的进步 ,其他技术的进步也带动了变频技术的发展更多还原

【Abstract】 Frequency conversion technology is the main composition of electric and electronic technology.It is mainly used in the fields of spead adjusting of alternator and power supply.The technology can reduce the volume of power supply equipment,improve its working efficiency and generate the great economic benefit. With the devolepment of science and technology,it will be more widely used.It can promote the development of relevant technology and other relevant technology can also lead to the advance of the frequency conversion.更多还原