【摘要】：電動仿真轉臺是航空航天領域中用于半實物仿真的重要設備，隨著航空航天工業(yè)的迅速發(fā)展，對仿真轉臺各項性能提出了更高的要求。本文以電動仿真轉臺的電機伺服控制系統(tǒng)為研究對象，研究永磁同步電機伺服系統(tǒng)控制策略和控制效果，引入重復控制技術，提出基于重復控制的無靜差永磁同步電機伺服控制系統(tǒng)，大大改善了系統(tǒng)的動靜態(tài)性能。 首先，建立了永磁同步電機的數學模型，根據坐標變換理論推導出電機在αβ靜止坐標系及dq旋轉坐標系下的變換方程。以電機數學模型為基礎，研究了永磁同步電機矢量控制策略和直接轉矩控制策略，兩種策略中的逆變電路都采用電壓矢量脈寬調制（SVPWM）技術。在Matlab/Simulink環(huán)境中，對控制系統(tǒng)參數進行了優(yōu)化，并進行了仿真研究，直接轉矩控制系統(tǒng)的動態(tài)響應更快。 然后，分析了重復控制技術，重點研究了重復控制器的設計及實現方法。根據永磁同步電機矢量控制及直接轉矩控制特點，將重復控制技術應用到兩種控制策略中。建立了兩種控制系統(tǒng)的模型，并進行仿真研究。仿真結果表明，，基于重復控制器的矢量控制策略電流和位置變量穩(wěn)態(tài)運行無靜差，動態(tài)跟隨性能好；基于基于重復控制器的直接轉矩控制策略電磁轉矩脈動小，系統(tǒng)運行穩(wěn)定。 最后，闡述了電動仿真轉臺的組成結構及系統(tǒng)的工作過程，對兩種改進的伺服系統(tǒng)仿真進行分析，仿真表明系統(tǒng)的位置跟隨性能良好。
[Abstract]:Electric simulation turntable is an important equipment used in the field of aeronautics and astronautics. With the rapid development of aerospace industry, higher requirements are put forward for the performance of simulation turntable. In this paper, the control strategy and control effect of the permanent magnet synchronous motor servo system are studied, and the repetitive control technology is introduced, taking the motor servo control system of the electric simulation turntable as the research object. A permanent magnet synchronous motor servo control system based on repetitive control is proposed, which greatly improves the dynamic and static performance of the system. Firstly, the mathematical model of permanent magnet synchronous motor (PMSM) is established, and the transformation equations of PMSM in 偽 尾 stationary coordinate system and dq rotating coordinate system are derived according to coordinate transformation theory. Based on the mathematical model of permanent magnet synchronous motor (PMSM), the vector control strategy and direct torque control strategy of PMSM are studied. The voltage vector pulse width modulation (SVPWM) technique is used in the inverter circuit of both strategies. In the Matlab/Simulink environment, the parameters of the control system are optimized, and the simulation results show that the dynamic response of the direct torque control system is faster. Then, the repetitive control technology is analyzed, and the design and implementation of repetitive controller are studied. According to the characteristics of vector control and direct torque control of permanent magnet synchronous motor (PMSM), the repetitive control technique is applied to two control strategies. The models of two control systems are established and simulated. The simulation results show that the vector control strategy based on repetitive controller has no static error and good dynamic following performance, and the direct torque control strategy based on repetitive controller has small electromagnetic torque ripple and stable operation. Finally, the structure of the electric simulation turntable and the working process of the system are described. Two kinds of improved servo system simulation are analyzed, and the simulation results show that the position following performance of the system is good.
【學位授予單位】：哈爾濱工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM341

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