外文翻譯---雙閉環(huán)直流調(diào)速系統(tǒng)的說明-其他專業(yè)-wenkub
2023-01-30 09:23:55 本頁面
【正文】 作用可歸納如下： （ 1） .轉(zhuǎn)速調(diào)節(jié)器的作用 轉(zhuǎn)速調(diào)節(jié)器是調(diào)速系統(tǒng)的主導(dǎo)調(diào)節(jié)器，它使轉(zhuǎn)速 n很快隨給定電壓變化 Un*變化，穩(wěn)態(tài)時(shí)可減小轉(zhuǎn)速誤差，如果采用 PI調(diào)節(jié)器，則可實(shí)現(xiàn)無靜差 。 （ 3）在轉(zhuǎn)速、電流雙閉環(huán)調(diào)速系統(tǒng)中，兩個(gè)調(diào)節(jié)器均采用 PI調(diào)節(jié)器。, at this time to zero output voltage rectification system, the electrical will not crawl. (7) With a given system can not run Should first check whether it is normal for the external control system, such as outside the normal control system, it may be given points, speed regulator, current regulator, such as caused by link failure. Shall be cut off main circuit power supply, only the control system to the electricity, not Add the given circumstances, the key points of each test (such as the current regulator, voltage regulator, etc.) of the potential. and then bined with a given, after the previous one by one to each of the key points to check the potential changes, that is, where to find fault. (8) Lack of control accuracy in the distributor for a given runtime external control often requires precision sufficient parking in order to work properly. If poor precision parking, you can adjust the speed of the appropriate regulator of the PI link, generally by reducing the the ratio of the integral part of efforts to get satisfactory results. (9) Reversible system oscillation 1) openloop system in the state (the main circuit disconnect) the oscillation ca n be changed at this time given the previous inspection to the key points of the potential changes. If a given unchanged, but the potential is still a point of change, here is the crux of . 2) system in the state when the closedloop oscillation, in which case in order to ensure the safety of the electrical load should be replaced by the general resistance of the load, if there is no suitable resistance box which can be used in place of the two electric subseries. inspection methods and similar openloop, focusing on the link to check is: given points, level detection, operation control, such as the speed regulator. oscillations are often caused as a result of operational amplifiers, such as damage to electronic 畢業(yè)設(shè)計(jì) （外文 翻譯 ） 6 ponents , system parameters caused by improper, according to the specific circumstances, properly addressed. 畢業(yè)設(shè)計(jì) （外文 翻譯 ） 7 雙閉環(huán)直流調(diào)速系統(tǒng)的說明 一、系統(tǒng)分析與綜合 （ 1）在轉(zhuǎn)速、電流雙閉環(huán)調(diào)速系統(tǒng)中，若要改變電動(dòng)機(jī)的轉(zhuǎn)速，應(yīng)調(diào)節(jié)什么參數(shù)？改變轉(zhuǎn)速調(diào)節(jié)器的放大倍數(shù) Kn 行不行？改變電力電子變換器的放大系數(shù) Ks行不行？改變轉(zhuǎn)速反饋系數(shù) ? 行不行？若要改變電動(dòng)機(jī)的堵轉(zhuǎn)電流，應(yīng)調(diào)節(jié)系統(tǒng)中的什么參數(shù)？ 答：若要改變電動(dòng)機(jī)的轉(zhuǎn)速，改變轉(zhuǎn)速調(diào)節(jié)器的放大倍數(shù) Kn 和電力電子變換器的放大系數(shù) Ks 都不行，穩(wěn)定時(shí) ? n=Un=Un*,所以只有改變給定 值 Un*和反饋系數(shù)? 才行。 Double Loop DC Speed Control System Description 工 學(xué) 部 專 業(yè) 自動(dòng)化 班 級 學(xué) 號(hào) 姓 名 指導(dǎo)教師 負(fù)責(zé)教師 畢業(yè)設(shè)計(jì) （外文 翻譯 ） 1 Double Loop DC Speed Control System Description Ⅰ .system analysis and synthesis 1． Analysis （ 1） In the speed and current dual closedloop speed control system, in order to change the motor speed, what parameters should be regulating? Change speed regulator Kn magnification work? Power electronic converter to change the magnif
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