Microsoft Word - 13.doc 关键字：变频器；正弦脉宽调制；电梯门机系统 [gap=992]Keyword: frequency converter; SPWM; elevator door-motor system
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The problems in elevator door-motor system and picks up the system scheme which adopts the DC brushless motor to act as driver motor based on MSP430F149 is analysed.
详细分析了目前电梯门机系统存在的问题，提出了以MSP430F149单片机为核心，无刷直流电动机为驱动机的系统方案。
Discusses the problems existing in the door motor of elevator, puts forward the system project which takes DSP digital signal processing technology as core, DC brushless motor as driver.
探讨了目前电梯门机系统存在的问题，提出了应用DSP数字信号处理技术为核心，无刷直流电机为驱动机的系统方案。
The MSP430F149 MCU is selected as the control center of elevator door motor control system.
系统选择MSP430F149单片机作为电梯门机控制系统的核心，兼顾性能与成本等因素。
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