AB/罗克韦尔 1756-EN2TR 通信模块 1756 ControlLogix系统

AB/罗克韦尔 1756-EN2TR 通信模块 1756 ControlLogix系统

AB/罗克韦尔 1756-EN2TR 通信模块 1756 ControlLogix系统

变频器的技术，如果要从教科书上去找理论基础，可以归结到电力电子技术这一学科。电力电子技术是借助于半导体功率器件（IGBT一类的）对电能进行转换、控制和优化利用的技术。对销售或者对公司来说，可以称为机电一体化的产品。

变频器的普及，可以理解成一种电源。什么电源呢？我们知道变压器的作用是起到电压转换的过程。比如升压变压器，降压变压器，自耦变压器等等，甚至电抗器等，输入电压和输出电压或升高或降低，或不变，实现的都是能量的传递。普传变频器是通过改变电网的电压和频率来实现能量传递的一个装置，所以可以理解成一个电源。工业中大多的用电要求是三相380伏、50赫兹的，普传变频器就是把这个电源调制成0-380伏，0-50赫兹。

从拖动系统的角度来说，一个工艺流程包括控制、驱动、执行、负载这四个环节。控制指得是操作部分，比如上位机，普通操作箱，控制柜、可编程序逻辑控制器等；驱动就是我们的产品，包括普传变频器、伺服电源等；执行部分就是电机或者伺服电机；负载就是我们说的什么风机了、水泵了、空压机了等等。

AB/罗克韦尔 1756-EN2TR 通信模块 1756 ControlLogix系统

The technology of frequency converter, if you want to find the theoretical basis from the textbook, can be attributed to the discipline of power electronics technology. Power electronics technology is a technology to convert, control and optimize the utilization of electric energy by means of semiconductor power devices (IGBTs). For sales or for the company, it can be called mechatronics products.

The popularity of inverter can be understood as a power supply. What power source? We know that the role of transformers is to play a voltage conversion process. For example, boost transformers, step-down transformers, autotransformers, etc., and even reactors, the input voltage and output voltage or increase or decrease, or unchanged, to achieve the transfer of energy. Universal frequency converter is a device that realizes energy transfer by changing the voltage and frequency of the power grid, so it can be understood as a power supply. Most of the power requirements in the industry are three-phase 380 volts and 50 Hertz, and the general transmission frequency converter is to adjust this power supply to 0-380 volts and 0-50 Hertz.

From the point of view of the drag system, a process flow includes four links: control, drive, execution and load. Control refers to the operation part, such as the upper computer, ordinary operation box, control cabinet, programmable logic controller, etc.; Drive is our products, including general transmission frequency converter, servo power supply, etc. The actuator is the motor or servo motor; The load is what we say about the fan, the pump, the air compressor, and so on.