【摘要】：超高速永磁同步電機(jī)在現(xiàn)代工業(yè)中應(yīng)用越來越廣泛,而其驅(qū)動控制的關(guān)鍵技術(shù)被發(fā)達(dá)國家壟斷,研究超高速永磁同步電機(jī)控制策略,開發(fā)我國自主的超高速永磁同步電機(jī)控制系統(tǒng),是縮小中外差距,提高我國現(xiàn)代工業(yè)水平的必經(jīng)之路。本文以超高速永磁同步電機(jī)為研究對象,完成了控制算法的設(shè)計(jì)、驗(yàn)證與實(shí)現(xiàn),具體如下:首先,簡述了本文研究對象的系統(tǒng)組成,給出了超高速永磁同步電機(jī)的參數(shù),闡述了超高速永磁同步電機(jī)的數(shù)學(xué)模型,在MATLAB中搭建了電機(jī)仿真模型并進(jìn)行了相關(guān)仿真實(shí)驗(yàn),為控制算法研究奠定基礎(chǔ)。其次,針對超高速永磁同步電機(jī)位置傳感器安裝困難、要求高的特點(diǎn),設(shè)計(jì)了基于擴(kuò)展卡爾曼濾波器(EKF)的無傳感器轉(zhuǎn)速估計(jì)算法;進(jìn)行了基于直接轉(zhuǎn)矩控制(DTC)的轉(zhuǎn)速估計(jì)算法仿真實(shí)驗(yàn),仿真結(jié)果驗(yàn)證了所設(shè)計(jì)的轉(zhuǎn)速估計(jì)算法的正確性。接著,針對DTC轉(zhuǎn)矩、磁鏈脈動大的局限性,引入SVPWM對DTC進(jìn)行改進(jìn);針對超高速電機(jī)強(qiáng)耦合、高階、非線性的特點(diǎn),設(shè)計(jì)了模糊PID速度控制器,并與經(jīng)典PID速度控制器進(jìn)行了仿真對比實(shí)驗(yàn),仿真結(jié)果表明,模糊PID控制器具有更好的控制性能。然后,針對超高速永磁同步電機(jī)系統(tǒng)參數(shù)不確定性強(qiáng)、負(fù)載擾動大的特點(diǎn),設(shè)計(jì)了自適應(yīng)魯棒速度控制器,并證明了系統(tǒng)的穩(wěn)定性和轉(zhuǎn)速跟蹤誤差收斂性;搭建了系統(tǒng)仿真模型,進(jìn)行了仿真實(shí)驗(yàn),仿真結(jié)果表明,較之模糊PID速度控制器,基于自適應(yīng)魯棒速度控制器的超高速永磁同步電機(jī)系統(tǒng)具有更好的魯棒性。最后,介紹了系統(tǒng)實(shí)驗(yàn)平臺主要構(gòu)成,完成了系統(tǒng)控制策略相關(guān)軟件設(shè)計(jì)與開發(fā),包括轉(zhuǎn)矩和磁鏈環(huán)控制模塊、轉(zhuǎn)速環(huán)控制模塊、轉(zhuǎn)速估計(jì)模塊等。為實(shí)時(shí)監(jiān)測系統(tǒng)運(yùn)行狀態(tài),設(shè)計(jì)了上位機(jī)監(jiān)控軟件。進(jìn)行了系統(tǒng)實(shí)驗(yàn),實(shí)現(xiàn)了轉(zhuǎn)速的有效控制,驗(yàn)證了電機(jī)控制策略的有效性。
[Abstract]:The ultra-high speed permanent magnet synchronous motor is more and more widely used in modern industry, but the key technology of its drive control is monopolized by developed countries, so the control strategy of ultra-high speed permanent magnet synchronous motor is studied. It is necessary to develop our own ultra-high speed permanent magnet synchronous motor control system to narrow the gap between China and foreign countries and to improve the level of our modern industry. In this paper, the design, verification and implementation of the control algorithm for the ultra-high speed permanent magnet synchronous motor are completed. The details are as follows: firstly, the system composition of the research object is briefly described, and the parameters of the ultra-high speed permanent magnet synchronous motor are given. The mathematical model of ultra-high speed permanent magnet synchronous motor (PMSM) is described. The simulation model of PMSM is set up in MATLAB and the related simulation experiments are carried out, which lays a foundation for the research of control algorithm. Secondly, a sensorless speed estimation algorithm based on extended Kalman filter (EKF) is designed to solve the problem of difficult installation and high requirement of position sensor in ultra-high speed permanent magnet synchronous motor (PMSM). The speed estimation algorithm based on direct torque control (DTC) is simulated and the simulation results verify the correctness of the proposed algorithm. Then, aiming at the limitation of DTC torque and flux pulsation, SVPWM is introduced to improve DTC, and a fuzzy pid speed controller is designed for the characteristics of strong coupling, high order and nonlinearity of super high speed motor. The simulation results show that the fuzzy pid controller has better control performance than the classical pid speed controller. Then, an adaptive robust speed controller is designed for the ultra-high speed permanent magnet synchronous motor system with strong parameter uncertainty and heavy load disturbance, and the stability of the system and the convergence of the speed tracking error are proved. The system simulation model is built and the simulation experiment is carried out. The simulation results show that the super-high speed PMSM system based on adaptive robust speed controller is more robust than the fuzzy pid speed controller. Finally, the main components of the system experimental platform are introduced, and the software design and development of the system control strategy are completed, including torque and magnetic chain control module, speed estimation module and so on. In order to monitor the running state of the system in real time, the monitoring software of upper computer is designed. The system experiment is carried out and the effective speed control is realized, and the validity of the motor control strategy is verified.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP273;TM341

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