直流调速系统毕业设计中英文对照翻译

河南理工大学毕业设计指南DC governor system outlinedDC governor is artifially or automatically change the direct current generator rotational speed to meet the for mechanical requirements。from the mec Hanical properties point of view，Is that by changing the parameters or electric Motors plus the voltage electric Motors and other memes feedback links and other links to achieve protection . The rotational speed electric motors not given rotational speed automatic calibration and ered the impact of external disturbances to the rotational speed electric motors always consistent with the rotational speed of the governor to be known as work machinery and production processes to meet The requirements . with electrical，sensors，control devices，The flow of technology currently，The single air scraft used electrical capacity from a few hundred KIO watts to tens of thousands of KIO watts，And change the flow ofcontrol module from the simulation of sensors，conditioners，will be integral to the development of devices to micro processors chips at thipssystem control mode switching from manual operation of multi-parameter control to servo control；from simple mechanics to electrical transmission system expansion for location，speed，Acceleration control of the important branches of the important branchesDC governor advantageDirect current generator is a good、braking performance、appropriate in a broader context、smooth mechanics、rolling mill、 so direct current governor system In the production And living And play a vital role . DC governor system，In partict the double-loop DC governor system The traditional control systems using analog components、such as transistors、Various linear circuit operation、although to some entsdouble-loop system integral DC governorRotational speed，the current two-loop systems theory governor figure 2-1。by the plan shows that the system has two feedback circuit，A 2 loop circuit(so called double-loop)。one is The current regulator lt And current testing-The current part of a feedback link，And another by The speed regulator ST rotational speedback linkin the circuit，A string ST And lt level connectivity from ST to drive lt，And then from lt to The control tringbut as part of a dedicated rotational speed，Current role only a part of a rotational speed of internal disturbances . central，Not