25B-D2P3N114 Allen- Bradley 可通过调节电源的频率和电压来驱动电机

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25B-D2P3N114 Allen- Bradley 可通过调节电源的频率和电压来驱动电机

25B-D2P3N114是一款变频驱动器它是一种电机控制设备，可通过调节电源的频率和电压来驱动电机。除了对电机的启动和停止过程中的加速和减速进行控制外，它还被称作可调速驱动器、可调频驱动器、变速驱动器、频率转换器、电源转换器等。

25B-D2P3N114的历史可以追溯到1960年代，当时电力电子器件如晶闸管及其升级产品开始普及，但其调速性能无法满足需要。到了1970年代，脉宽调制变压变频（PWM－VVVF）调速的研究取得了突破。随着1980年代微处理器技术的完善，各种优化算法得以实现。到了1980年代中后期，VVVF变频器技术在美、日、德、英等发达国家得到了实用化，并投入市场广泛应用。

25B-D2P3N114的类型繁多，已衍生出了许多适用于各类应用的单相和三相变频器。它们的区别主要在于频率和电压控制方式的不同，以及谐波抑制技术的不同。变频器中常用的三大变频设计包括：脉冲宽度调制（PWM）、电流源逆变器和电压源逆变器。其中，PWM技术最为常见，它通过多次开启和关闭变频器的功率逆变器设备（如晶体管或绝缘栅双极型晶体管），使电压的均方值达到合适水平，从而改变输出频率和输出电压。

25B-D2P3N114 Allen- Bradley 可通过调节电源的频率和电压来驱动电机

The 25B-D2P3N114 is a variable frequency driver. It is a motor control device that drives a motor by adjusting the frequency and voltage of the power supply. In addition to the control of acceleration and deceleration during the start and stop of the motor, it is also called adjustable speed driver, adjustable frequency driver, variable speed driver, frequency converter, power converter, etc.

The history of the 25B-D2P3N114 dates back to the 1960s, when power electronics such as thyristors and their upgrades became popular, but their speed regulation performance was not enough to meet the needs. In the 1970s, the research of pulse width modulation variable voltage frequency conversion (PWM-VVVF) speed regulation made a breakthrough. With the improvement of microprocessor technology in the 1980s, various optimization algorithms were realized. By the late 1980s, VVVF inverter technology in the United States, Japan, Germany, Britain and other developed countries have been practical, and put into the market widely used.

The variety of 25B-D2P3N114 has resulted in a number of single – and three-phase converters for a wide range of applications. The difference between them mainly lies in the difference in frequency and voltage control methods, and the difference in harmonic suppression technology. Three commonly used frequency conversion designs include: pulse width modulation (PWM), current source inverter and voltage source inverter. Among them, PWM technology is the most common, it turns on and off the power inverter device (such as transistor or insulated gate bipolar transistor) of the inverter several times, so that the mean square value of the voltage reaches the appropriate level, so as to change the output frequency and output voltage.