双PWM变换器的异步电机矢量控制系统设计

Design of asynchronous motor vector control system based on dual PWM converte

摘要:

针对传统的双PWM变换器的异步电机矢量控制误差率很高这一问题，设计了一种新的异步电机矢量控制系统，分别对系统硬件和软件进行设计，硬件架构图中重点对硬件电机结构、DSP芯片和编程器进行设计。根据设计的系统硬件建立软件工作流程，软件共分为系统初始化、中断控制、PWM信号封锁、报警保护和数据通信五步，对每一个工作步骤做了详细的阐述。通过仿真实验验证了该矢量控制系统的实际工作效果，实验结果表明，所设计的系统具有很强的鲁棒性，控制性能远远好于传统系统，市场发展潜能大，对于异步电机发展有一定的指导意义。

Abstract:

In view of the high error rate of vector control of asynchronous motor in traditional dual PWM converter, a new vector control system for asynchronous motor is designed. The hardware and software of the system are designed respectively. The hardware architecture, the DSP chip and the programmer are emphatically designed in the hardware architecture diagram. The software workflow is set up according to the designed system hardware. The software is divided into five steps: system initialization, interruption control, PWM signal blockade, alarm protection and data communication, and each work step is elaborated. The experimental results show that the designed system has strong robustness, the control performance is far better than the traditional system, the potential of the market development is great, and it has certain guiding significance for the development of asynchronous motor.