三相六開關永磁同步馬達合成電壓向量之新設計

A New Voltage Vector Synthesis Method for Three-phase Six-switch Permanent Magnet Synchronous Motors

邱立言(Li-Yen Chiu)

指導教授 ： 游仁德

中原大學/電機資訊學院/電機工程研究所/碩士(2022年)

https://doi.org/10.6840/cycu202200055

摘要

在電動機控制系統當中，須由外迴路以及內迴路來控制系統，內外迴路當中藉由切換三相六開關逆變器合成電壓命令或者是電流命令是驅動永磁同步馬達當中不可或缺的一環，空間向量調變在出現後現在已經為主要的合成電壓方法之一，本論文提出一個新的SVPWM中計算合成電壓之各基礎電壓佔比之演算法，不需要計算三角函數並且只需利用平面座標的概念以及相似形的概念即可求得基礎向量佔比。在利用Simulink®將結果模擬出來後與舊有的演算法來做比較，驗證其方法確實可行，提供之後對於計算基礎電壓向量施加時間佔比演算法另外一種選擇。

關鍵字

電動機控制系統 ； 空間向量調變 ； 基礎電壓合成 ； 三相六開關逆變器 ； 基礎電壓占比演算法

並列摘要

In the motor control system, the outer loop and the inner loop must be used to control the system. In the inner and outer loops, the synthesized voltage command or current command by switching the three-phase six-switch inverter is an indispensable part of driving the permanent magnet synchronous motor. Space vector modulation has become one of the main synthetic voltage methods after its appearance. This thesis proposes a new algorithm for calculating the proportion of each basic voltage of synthetic voltage in SVPWM, which does not need to calculate trigonometric functions and only needs to use the concept of plane coordinates, and the concept of similar shapes can be used to obtain the proportion of the basis vector. After using simulink® to simulate the result and compare it with the old algorithm, although the proposed method is slightly worse than the traditional algorithm, it is verified that the method is indeed feasible.

並列關鍵字

Motor Control System ； Space Vector Modulation ； Basic voltage synthesis ； Three-phase six-switch inverter ； Basic voltage ratio algorithm

參考文獻

[1] M.P. Kazmierkowski, M.A. Dzieniakowski, W. Sulkowski“Novel space vector based current controllers for PWM-inverters” 1989 20th Annual IEEE Power Electronics Specialists Conference

[2] J. Rodríguez, J. Pontt, C. A. Silva, P. Correa, P. Lezana, P. Cortes, and U. Ammann, “Predictive current control of a voltage source inverter,” IEEE Trans. Ind. Electron., vol. 54, no. 1, pp. 495–503, Feb. 2007.

[3] H. Lu, J. Li, R. Qu, and Donglin Ye, “Fault-tolerant Predictive Current Control with Two-vector Modulation for Six-phase Permanent Magnet Synchronous Machine Drives,” IET Electric Power Appl., vol. 12, no. 2, pp. 169-178, Feb. 2018.

[4] H. Mahmoudi, M. Aleenejad, and R. Ahmadi, “Modulated Model Predictive Control for MMC-based Active Front-End Rectifiers Under Unbalanced Grid Conditions,” IEEE Trans. Ind. Electron., vol. 65, no. 10, pp. 8307-8319, Dec. 2017.

[5] S. Odhano, R. Bojoi, A. Formentini, P. Zanchetta, and A. Tenconi, “Direct Flux and Current Vector Control for Induction Motor Drives Using Model Predictive Control Theory,” IET Electric Power Appl., vol. 11, no. 8, pp. 1483-1491, Sept. 2017.123