本文選題：永磁同步電機(jī) + 模型預(yù)測(cè)控制　； 參考：《華北電力大學(xué)》2014年碩士論文

【摘要】：永磁同步電機(jī)因自身功率因數(shù)高、安全性能好以及耗能低等特點(diǎn),在實(shí)際應(yīng)用中逐漸起著主導(dǎo)的作用。為此,永磁同步電機(jī)的相關(guān)研究受到越來越多學(xué)者的關(guān)注,也成為電機(jī)領(lǐng)域的研究熱點(diǎn)。 模型預(yù)測(cè)控制(MPC)考慮了控制量對(duì)系統(tǒng)未來狀態(tài)的影響,可以得到高性能的控制效果,在過程控制領(lǐng)域已取得了成功的應(yīng)用。另外,模型預(yù)測(cè)控制方法可以有效地解決約束條件對(duì)系統(tǒng)性能的影響,保證系統(tǒng)具有理想的穩(wěn)態(tài)和動(dòng)態(tài)性能。為此,本文基于永磁同步電機(jī)的數(shù)學(xué)模型和矢量控制思想,設(shè)計(jì)了電機(jī)轉(zhuǎn)速電流雙閉環(huán)串級(jí)模型預(yù)測(cè)控制器,外環(huán)轉(zhuǎn)速環(huán)輸出內(nèi)環(huán)交軸電流的參考信號(hào)。 此外,由于定子本身結(jié)構(gòu)的不精確和外界測(cè)量誤差引發(fā)的轉(zhuǎn)矩脈動(dòng)問題會(huì)對(duì)電機(jī)的穩(wěn)定性造成很嚴(yán)重的影響,給電機(jī)的精確控制問題帶來了很大的難度。本文基于脈動(dòng)周期性的特點(diǎn),依據(jù)迭代學(xué)習(xí)控制原理,提出了電流學(xué)習(xí)補(bǔ)償?shù)姆椒?在原有串級(jí)模型預(yù)測(cè)控制器的基礎(chǔ)上,增加了交軸參考電流補(bǔ)償環(huán)節(jié),用以抑制轉(zhuǎn)矩脈動(dòng),仿真結(jié)果表明電流學(xué)習(xí)補(bǔ)償?shù)目刂品椒ǹ梢杂行У販p小電機(jī)的轉(zhuǎn)矩脈動(dòng)。
[Abstract]:Permanent magnet synchronous motor (PMSM) plays a leading role in practical application because of its high power factor, good safety performance and low energy consumption. Therefore, the research of permanent magnet synchronous motor (PMSM) has attracted more and more scholars' attention, and has also become a research hotspot in the field of PMSM. Model Predictive Control (MPC) takes into account the influence of control variables on the future state of the system and can obtain high performance control effect. MPC has been successfully applied in the field of process control. In addition, the model predictive control method can effectively solve the effect of constraint conditions on the system performance, and ensure the system has ideal steady and dynamic performance. Based on the mathematical model of permanent magnet synchronous motor and the idea of vector control, this paper designs a double-closed-loop cascade model predictive controller for motor speed and current. In addition, due to the inaccuracy of the stator structure and the torque ripple caused by the external measurement error, the stability of the motor will be seriously affected, which brings great difficulty to the precise control of the motor. Based on the characteristics of pulsation periodicity and the principle of iterative learning control, a method of current learning compensation is proposed in this paper. Based on the original cascade model predictive controller, the cross-axis reference current compensation is added to suppress the torque ripple. The simulation results show that the control method of current learning compensation can effectively reduce the torque ripple of the motor.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM341

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 許強(qiáng),賈正春,李朗如;永磁同步電機(jī)的自適應(yīng)預(yù)測(cè)電流控制[J];電氣傳動(dòng);1997年04期

2 許建新,侯忠生;學(xué)習(xí)控制的現(xiàn)狀與展望[J];自動(dòng)化學(xué)報(bào);2005年06期

3 王曉明,史文祥,劉英,唐宇;永磁體充磁磁場(chǎng)分布的控制方法[J];微特電機(jī);2004年03期

4 牛里;楊明;劉可述;徐殿國;;永磁同步電機(jī)電流預(yù)測(cè)控制算法[J];中國電機(jī)工程學(xué)報(bào);2012年06期

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本文編號(hào)：2101239