基于DSP高速无刷直流电机控制使用直流环节电压控制

中文译文
基于DSP高速无刷直流电机控制使用直流环节电压控制(中文2800字,英文2000字)

电气工程部门
韩国先进的科学技术学院
韩国大田

一个基于DSP高速度传感器控制无刷直流电机(无刷直流)汽车使用直流环节电压控制方案被提出了。无刷直流电机的运行在一个高速度范围、驱动系统可以有一个比较轻体积小,在同一输出等级。在现有的无传感器控制方案,通常采用PWM(脉宽调制)技术作为一个速度控制。然而,由于PWM技术和变频变换不能履行独立,明显的变换延迟存在于高速地区。另一方面，使用的直流母线电压控制方案，变频器操作与方波120°传导速度控制是通过调节斩波直流环节逆变器的输入电压实现。利用这项技术,因为电压控制和变换就可以实现独立,延迟不存在运算可以交换甚至在一个高速地区。此外，以有一个波形相位目前类似的矩形波和终端电压更有效率的处理在位置检测电路。实际应用变换议题延迟的一个高速度的无传感器控制进行了讨论。整个控制系统的实施应用DSP芯片的无刷直流电机TMS320C240和有效性的比较验证了仿真和实验。

关键词 无刷直流电机、无传感器控制、DSP控制。

英文原文
DSP-Based High-Speed SensorlessControl for a Brushless DC Motor Using a DC Link Voltage Control
Department of Electrical Engineering
Korea Advanced Institute of Science and Technology
Taejon, Korea
A DSP-based high speed sensorless control for a brushless DC (BLDC) motor using a DC link voltage control scheme is presented. By operating the BLDC motor in a high speed range, the drive system can have a small size and be light weight at the same output rating. In the existing sensorless control schemes, the PW M technique is generally used as a speed control. However, since the PWM and inverter commutation cannot be performed independently, a significant commutation delay may exist in a high-speed region. On the other hand, using the DC link voltage control scheme, the inverter is operated with the squarewave of 120 ° conduction and the speed control is achieved by regulating the DC link input voltage of the inverter through the chopper. By using this technique,since the voltage control and commutation can be achieved independently, a commutating delay does not exist even in a high speed region. Also, the phase current can have a waveform similar to the rectangular wave and the terminal voltage is more e -cient to deal with in the position detection circuits. The practical implementation issues concerning the commutation delay in a high speed sensorless control are discussed. The whole control system is implemented on a BLDC motor using DSP TMS320C240 and the eŒectiveness is veried through the comparative simulations and experiments.

Keywords  brushless DC motor, sensorless control, DSP control