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测控技术与仪器专业资料 大功率 电动机 调速 控制 硬件 设计 测控 技术 仪器 专业 资料

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大功率电动机调速控制的硬件设计【测控技术与仪器专业资料】,测控技术与仪器专业资料,大功率,电动机,调速,控制,硬件,设计,测控,技术,仪器,专业,资料

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大功率电机调速控制的硬件设计摘要 我国有相当丰富的镁资源,储量占世界的 60以上,镁合金具有密度小,比强度高,减振性好,抗电磁干扰屏蔽性好和机械加工性能好等优点。汽车工业来自节能和环保方面的压力为镁合金提供了巨大的发展空间。因此,大力进行镁合金的研究开发势在必行。本论文主要是研究用 PWM 控制大功率直流电机的转速，实现对电动机的数字化控制。在设计中，对 PWM 控制电机转速的原理进行了全面的阐述。详细介绍了以 80C552 作为整个控制系统核心的硬件部分。为实现系统的微机数字化控制， 本系统以 80C552 作为核心，配以驱动，测量，显示等模块，实现对电机转速参数的显示和测量。硬件组成包括，80C552，电源模块，2764 芯片，驱动模块， 8255 芯片及 LED 显示模块，电流检测模块，光电码盘测速模块，输入模块等。在设计中，采用 PWM 调速方式，通过改变 PWM 占空比改变电动机的电枢电压来控制电机转速。在硬件结构上采用了集成电路模块，简化了硬件电路，提高了系统的稳定性和可靠性，使整个系统的性能得到提高。实现了直流电动机的实时数字PWM 控制，具有控制方便、组态简单和灵活性大等优点。本文解决了“半固态镁合金板带连续铸轧成形技术”中的电机速度控制问题； 实现了镁合金半固态加工技术的自动化水平。关键词 80C552 直流电机 PWM 调速 转速显示The hardware design of the high power motor speed controlAbstract China has fairly rich in magnesium resources, reserves accounted for 60% of the world, magnesium alloys have low density, high strength, vibration resistance, and good shielding against electromagnetic interference and goodmechanical processing performance. Automotive pressure from energy conservation and environmental protection for the magnesium alloy provides a huge space for development. Therefore, to carry out research and development of magnesium alloy imperative .This paper mainly studies the speed of the PWM control power DC motor to realize the digital control of the motor. In the design, the speed of the motor of the PWM control is described comprehensively. This paper introduces the hardware of the whole control system based on 80C552 . In order to realize the microcomputer digital control of the system, the system takes 80C552 as the core, and is equipped with the driver, the measurement and the display module to realize the display and measure of the motor rotate speed parameters. Hardware including, 80C552, power supply module, 2716 chip, driver module, 8255 chip and LED display module, current detection module, optical encoder module, input module. In the design, the speed of the motor is controlled by changing the duty ratio of PWM.In the hardware structure using the integrated circuit module, simplifying the hardware circuit, improves the stability and reliability of the system, the system performance is improved. The real-time digital PWM control of DC motor is realized, which has the advantages of convenient control, simple configuration and great flexibility.This paper solves the semi-solid magnesium alloy strip continuous casting forming technology in the motor speed control problem; and achieve the l