【正文】 本設(shè)計(jì) ―― “ 雙閉環(huán)直流調(diào)速系統(tǒng)的工程 設(shè)計(jì) ” ，對(duì)于給定的 DJDK－ 1 型電力電子技術(shù)及電機(jī)控制實(shí)驗(yàn)裝置，測(cè)定直流電動(dòng)機(jī)的各項(xiàng)電氣參數(shù)和時(shí)間常數(shù)，并應(yīng)用經(jīng)典控制理論的工程設(shè)計(jì)方法設(shè)計(jì)轉(zhuǎn)速和電流雙閉環(huán)直流調(diào)速系統(tǒng)，最后 應(yīng)用 MATLAB 軟件對(duì)設(shè)計(jì)的系統(tǒng)進(jìn)行仿真和校正以達(dá)到滿足控制指標(biāo)的目的。 對(duì)于給定直流 拖動(dòng)控制系統(tǒng)在 經(jīng)典控制理論工程計(jì)算 的基礎(chǔ)上， 在完成參數(shù)測(cè)定后， 應(yīng)用雙閉環(huán)直流調(diào)速系統(tǒng)工程設(shè)計(jì)方法設(shè)計(jì)了主電路、電流環(huán)和轉(zhuǎn)速環(huán)，并應(yīng)用 MATLAB 語言中的 SIMULINK 工具箱對(duì)系統(tǒng)進(jìn)行 了仿真，看到了理論設(shè)計(jì)與仿真結(jié)果的差異，通過對(duì)仿真結(jié)果的分析，進(jìn)一步了解了工程設(shè)計(jì)方法中的近似環(huán)節(jié)給系統(tǒng)帶來的影響，認(rèn)識(shí)到了理論設(shè)計(jì)和工程計(jì)算的不同。 仿真部分， 運(yùn)用 了 MATLAB 語言，掌握了語言的基本操作，并著重學(xué)習(xí)了 SIMULINK 工具箱。運(yùn)用 SIMULINK 工具箱對(duì)系統(tǒng)進(jìn)行了仿真，得到了系統(tǒng)的動(dòng)態(tài)響應(yīng)曲線及其它各種線性分析曲線。 縱觀整個(gè)設(shè)計(jì)，經(jīng)典部分是已學(xué)過的知識(shí)，通過 畢業(yè) 設(shè)計(jì)深入理解了工程設(shè)計(jì)方法，擴(kuò)展了知識(shí)面， 各門課程綜合應(yīng)用， 收益頗多， 使我對(duì)直流調(diào)速系統(tǒng)的控制有了更深的認(rèn)識(shí)。 但由于理論水平有限 ，仍有許多不足之處有待解決。 32 參考文獻(xiàn) [1]陳伯時(shí)，《電力拖動(dòng)及自動(dòng)控制系統(tǒng)》，機(jī)械工業(yè)出版社， 2021。 [2] 揚(yáng)仲平，《自動(dòng)控制系統(tǒng)》，煤炭工業(yè)出版社， 1996。 [3]徐銀泉，《交流調(diào)速系統(tǒng)及其應(yīng)用》，紡織工業(yè)出版社， 1990。 [4]許建國，《拖動(dòng)與調(diào)速系統(tǒng)》，武漢測(cè)繪科技大學(xué)出版社， 1998。 [5]佟純厚，《近代交流調(diào)速》，冶金工業(yè)出版社 , 1985。 [6]倪忠遠(yuǎn)，《直流調(diào)速系統(tǒng)》，機(jī)械工業(yè)出版社 , 1996。 [7]孫樹撲等，《電力電子技術(shù)》，中國礦業(yè)大學(xué)出版社 ， 2021。 [8]黃俊，王兆安，《電力電子技術(shù)》，機(jī)械工業(yè)出版社， 2021。 [9]劉祖潤，胡均達(dá)，《畢業(yè)設(shè)計(jì)指導(dǎo)》，機(jī)械工業(yè)出版社， 1996。 g an employment tribunal claim Employment tribunals sort out disagreements between employers and employees. You may need to make a claim to an employment tribunal if: ? you don39。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employme nt tribunal, even if you haven39。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it. If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。t charge you more than 35% of your pensation if you win the case. If you are thinking about signing up for a damagesbased agreement, you should make sure you39。re clear about the terms of the agreement. It might be best to get advice from an 33 experienced adviser, for example, at a Citizens Advice Bureau. To find your nearest CAB, including those that give advice by , click on nearest CAB. For more information about making a claim to an employment tribunal, see Employment tribunals. The (lack of) air up there Watch mCayman Islandsbased Webb, the head of Fifa39。s antiracism taskforce, is in London for the Football Association39。s 150th anniversary celebrations and will attend City39。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport. For me it39。s about how he felt and I would like to speak to him first to find out what his experience was. Uefa has opened disciplinary proceedings against CSKA for the racist behaviour of their fans during City39。s 21 win. Michel Platini, president of European football39。s governing body, has also ordered an immediate investigation into the referee39。s actions. CSKA said they were surprised and disappointed by Toure39。s plaint. In a statement the Russian side added: We found no racist insults from fans of CSKA. Age has reached the end of the beginning of a word. May be guilty in his seems to passing a lot of different life became the appearance of the same day。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 34 一字開頭的年齡已經(jīng)到了尾聲?；蛟S是愧疚于自己似乎把轉(zhuǎn)瞬即逝的很多個(gè)不同的日子過成了同一天的樣子；或許是追溯過去，對(duì)自己那些近乎偏執(zhí)的怪異信念的醒悟，這些天以來，思緒一直很凌亂，在腦海中不斷糾纏。總覺得自己自己似乎應(yīng)該去做點(diǎn)什么，或者寫點(diǎn)什么 。二十年的人生軌跡深深淺淺，突然就感覺到有些事情，非做不可了。 The end of our life, and can meet many things really do? 而窮盡我們的一生，又能遇到多少事情是真正地非做不可？ During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional。 Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn39。t really grow up, it seems is not so important。 Then in high school, think don39。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already can39。t remember his appearance. 童年時(shí)，覺得壓歲錢和新衣服是過年必備，但是隨著年齡的推進(jìn)，會(huì)越來越發(fā)現(xiàn)，那些東西根本就可有可無；初中時(shí)，以為要有一場(chǎng)暗戀才意味著真正的成長，但三年過去后，自己心平氣和的寫同學(xué)錄的時(shí)候，突然就發(fā)現(xiàn)是不是真正的成長了，好像并沒有那么重要了；然后到了高中，覺得非要吐露出自己的心聲才能為高 中生涯里的懵懂情愫劃上一個(gè)句點(diǎn)，但畢業(yè)晚會(huì)的時(shí)候最終還是被梗塞在了咽喉，后來再次站在他曾經(jīng)揮汗如雨的球場(chǎng)，看著他投過籃球的球框時(shí)，突然間發(fā)現(xiàn)自己已經(jīng)想不起他的容顏。 Originally, this world, can produce a chemical reaction to an event, in addition