本文選題：永磁同步電機(jī) + 無直流母線電壓傳感器��； 參考：《蘭州交通大學(xué)》2017年碩士論文

【摘要】：隨著稀土永磁體和電力電子技術(shù)的大力發(fā)展,PMSM(Permanent Magnet Synchronous Motors,永磁同步電機(jī))被廣泛應(yīng)用在工業(yè)、交通、軍事、航空等重要領(lǐng)域。對于一個(gè)完整的PMSM控制系統(tǒng)而言,需要多個(gè)傳感器來傳遞信息,然而傳感器的安裝不僅增加了整個(gè)系統(tǒng)的成本和體積,而且傳感器容易受工作環(huán)境影響會降低系統(tǒng)的可靠性。若傳感器出故障,則需要用其余健康信息來重構(gòu)這個(gè)故障信息。其中直流母線電壓值不僅影響著控制系統(tǒng)中的逆變器容量、成本等,而且與PMSM的設(shè)計(jì)和運(yùn)行性能都密切相關(guān),是電力驅(qū)動系統(tǒng)的一個(gè)重要參數(shù),因此本文針對無直流母線電壓傳感器的PMSM控制系統(tǒng)進(jìn)行研究。對于PMSM控制系統(tǒng)而言,VC(Vector Control,矢量控制)和DTC(Direct Torque Control,直接轉(zhuǎn)矩控制)是目前比較成熟的兩大控制方法。VC以坐標(biāo)變換為基礎(chǔ),實(shí)現(xiàn)了對磁場和轉(zhuǎn)矩的解耦控制,而DTC在靜止坐標(biāo)系下直接實(shí)現(xiàn)磁鏈計(jì)算和電機(jī)轉(zhuǎn)矩控制。近年來發(fā)展了一種MPCC(Model Predictive Current Control,模型預(yù)測電流控制)的控制方式,它可以提高速度響應(yīng),減小轉(zhuǎn)矩脈動。本文主要采用MPCC和VC策略來控制無直流母線電壓傳感器的PMSM系統(tǒng)。本文主要研究內(nèi)容分為以下幾個(gè)方面:(1)在PMSM矢量控制系統(tǒng)下設(shè)計(jì)了模型參考自適應(yīng)觀測器,用它來代替直流母線電壓傳感器傳遞直流母線電壓信息。此外進(jìn)行觀測器的改進(jìn),設(shè)計(jì)了滑模模型參考自適應(yīng)直流母線電壓觀測器,并分別在速度、轉(zhuǎn)矩、定子電阻、定子電感變化的情況下驗(yàn)證了后者觀測器較良好的觀測性能。(2)在帶有滑模模型參考自適應(yīng)直流母線電壓觀測器的PMSM矢量控制系統(tǒng)中,分別設(shè)計(jì)了電流和速度的積分滑模調(diào)節(jié)器,并在不同情況下(變化情況同(1)所述)驗(yàn)證其比PI調(diào)節(jié)器有優(yōu)越的抗擾動性能。(3)將MPCC系統(tǒng)與VC系統(tǒng)進(jìn)行仿真對比,并設(shè)計(jì)了基于積分滑模調(diào)節(jié)器和滑模模型參考自適應(yīng)觀測器的PMSM MPCC系統(tǒng),并在不同情況下(變化情況同(1)所述)驗(yàn)證了MPCC系統(tǒng)的優(yōu)越性能。
[Abstract]:With the development of rare earth permanent magnet and power electronics technology, PMSM permanent Magnet Synchronous Motors, permanent magnet synchronous motor (PMSM) is widely used in industry, transportation, military, aviation and other important fields. For a complete PMSM control system, multiple sensors are needed to transmit information. However, the installation of sensors not only increases the cost and volume of the whole system, but also reduces the reliability of the system. If the sensor fails, the rest of the health information needs to be reconstructed. The DC bus voltage not only affects the inverter capacity and cost in the control system, but also is closely related to the design and operation performance of the PMSM. It is an important parameter of the electric drive system. Therefore, the PMSM control system without DC bus voltage sensor is studied in this paper. For PMSM control system, DTC(Direct Torque control (vector control) and DTC(Direct Torque control (direct torque control) are two mature control methods. VC realizes decoupling control of magnetic field and torque based on coordinate transformation. DTC directly realizes flux chain calculation and motor torque control in stationary coordinate system. In recent years, a MPCC(Model Predictive Current Control, model predictive current control method has been developed, which can improve the speed response and reduce the torque ripple. In this paper, MPCC and VC strategies are used to control the PMSM system without DC bus voltage sensor. The main contents of this paper are as follows: 1) A model reference adaptive observer is designed under PMSM vector control system, which is used to transfer DC bus voltage information instead of DC bus voltage sensor. In addition, the observer is improved and the sliding mode model reference adaptive DC bus voltage observer is designed. In the case of stator inductance variation, the better observation performance of the latter observer is verified. (2) in the PMSM vector control system with sliding mode model reference adaptive DC bus voltage observer, the current and velocity integral sliding mode regulator are designed, respectively. At the same time, the MPCC system is simulated and compared with VC system under different conditions (the variation is the same as that described in No. 1), and it is proved that it has superior anti-disturbance performance than Pi regulator. The PMSM MPCC system based on the integral sliding mode regulator and the sliding mode model reference adaptive observer is designed, and the superior performance of the MPCC system is verified under different conditions.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM341;TP273

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