Title: direct drive permanent magnet synchronous motor control strategy and implementation of the s

"Xi greatly," the Japanese how to translate?
Title: direct drive permanent magnet synchronous motor control strategy and implementation of the simulation study: Zhao Xiaohao degree-granting units: Southwest Jiaotong University Keywords: direct drive permanent ferro a vapor magnet synchronous motor ;; ;; ;; electric vehicle field oriented vector control Direct Torque ;; Control ;; ;; double hysteresis constant speed control adjustment Abstract: direct drive control ferro a vapor systems, permanent magnet synchronous motor with a small size, light weight; high power factor, high efficiency; simple control, high reliability, has become a direct drive hot research field. Therefore, the study of permanent magnet synchronous motor control strategy to become a new research topic. Thesis for permanent magnet synchronous motor field oriented vector control technology and direct torque control technology, neodymium standard state specific studies. And the structure is simple, fast dynamic response to direct torque control simulation reproduces the electric automobile transmission characteristics. Thesis direct drive permanent magnet synchronous motor control strategies for the main content of research, design methodology and its control performance for a more in-depth study. From the basic structure of the three-phase permanent magnet synchronous motor starting, the mathematical model of the motor. The basic principle of permanent magnet synchronous motor field oriented vector control and direct torque control, and on the basis of theoretical analysis on the use of Matlab / Simulink tools, namely to build a permanent magnet synchronous motor field oriented vector control systems ferro a vapor and direct ferro a vapor torque control The simulation model of the system, and analysis of simulation results. Introduced the electric vehicle traction characteristics, build a direct-drive ferro a vapor electric vehicle simulation simulation system, according to the electric vehicle traction characteristics, torque and flux issued instructions designed to replace cruise control ferro a vapor on dual adjustable hysteresis traditional PI regulator prevent at different traction control ferro a vapor mode switching torque, flux greater impact. Based imitation http://www.999magnet.com/products/112-neodymium-standard-state PMSM direct torque ferro a vapor control system to simulate the true reproduction of electric vehicles operating characteristics. Based on the theoretical study and simulation analysis, the use of two-level inverter experimental platform hardware platform introduces the main circuit and control circuit, gives software control algorithm to achieve a permanent magnet synchronous motor direct torque control of the closed-loop experiments. Degree Year: 2009