異步電動(dòng)機(jī)矢量控制調(diào)速系統(tǒng)設(shè)計(jì)外文翻譯-其他專業(yè)(已修改)
2025-02-04 11:29 本頁面
【正文】 合肥學(xué)院機(jī)械工程系畢業(yè)設(shè)計(jì)（論文）文件－－ 合 肥 學(xué) 院 機(jī) 械 工 程 系 畢業(yè)設(shè)計(jì) (論文 ) 外 文 翻 譯 文獻(xiàn) 題目： The Design of the Vector Control System of Asynchronous Motor 專業(yè) ： 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 年級(jí) ： 09 級(jí) 姓名 ： 張支亮 學(xué)號(hào) ： 0906013014 指導(dǎo)教師 ： 夏小虎 職稱 ： 副教授 2021 年 4 月 20 日 1 The Design of the Vector Control System of Asynchronous Motor Min Zhang, Xinping Ding amp。 Zhen Guo College of Automation, Qingdao Technological University, Qingdao 266033, China Email: Abstract: Among various modes of the asynchronous motor speed control, vector control has the advantages of fast response, stability, transmission of highperformance and wide speed range. For the need of the asynchronous motor speed control, the design uses 89C196 as the controller, and introduces the designs of hardware and software in details. The Design is pleted effectively, with good performance simple structure and good prospects of development. Keywords: Asynchronous motor, 89C196, Vector control 1. Introduction AC asynchronous motor is a higher order, multivariable, nonlinear, and strong coupling object, using the concept of parameters reconstruction and state reconstruction of modern control theory to achieve decoupling between the excitation ponent of the AC motor stator current and the torque ponent, and the control process of AC motor is equivalent to the control process of DC motor, the dynamic performance of AC speed regulation system obtaining notable improvement, thus makes DC speed replacing AC speed possible finally. The current governor of the higher production process has been more use of Frequency Control devices with vectorcontrol. 2. Vector Control With the criterion of producing consistent rotating mago motive force, the stator AC current Ai , Bi , Ci by3S/2S conversion in the threephase coordinate system, can be equivalent to AC current sdi ， sqi ， in twophase static coordinate system, through vector rotation transformation of the reorientation of the rotor magic field, Equivalent to a synchronous rotation coordinates of the DC current edi ， eqi . When observers at core coordinates with the rotation together, AC machine bees DC machine. Of these, the AC induction motor rotor total flux r? , it has bee the equivalent of the DC motor flux, windings ed equivalent to the excitation windings of DC motor , 2 edi equivalent to the excitation current, windings eq equivalent to false static windings, eqi equivalent to the armature current proportional to torque. After the transformation above, AC asynchronous motor has been equivalent to DC motor. As a result, imitating the control method of DC motor, obtaining the control variable of DC motor, through the corresponding coordinates antitransformation, can control the asynchronous motor. As a result of coordinate transformation of the current (on behalf of magic momentum) space vector, thus, this control system achieved through coordinate transformation called the vector control system, referred to VC system. According to this idea, could constitute the vector control system that can control r? and eqi directly, as shown in Figure 1. In the figure a given and feedback signal through the controller similar to the controller that DC speed control system has used, producing given signal *eqsi of the excitation current and given signal *
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