变频调速器

• Abstract : this paper introduces the application of change - frequency velocity modulator in the mine fan , analyzes and compares energy charge before transformation with after . change - frequency velocity modulator has notable saving electric energy effect
  文摘:介绍了变频调速器在通风机改造中的应用，对改造前后的能耗进行分析比较，具有显著的节电效果。
• Abstract : by means of the comparison and analysis to applications of convertional starter and frequency conversion governor inmine exhauster , a useful and practicable electricity - saving pathof exhaust system was found out , so improving systematic saving operation
  摘要：通过对传统起动器和变频调速器在矿井抽风机的应用进行比较分析，找出一种抽风系统有效、可行的节电途径，以实现通风系统的经济运行。
• With the two products developed , the network - control function of inverters comes to realize . the inverter can not only form network - control through rs485 serial port , but also be linked to the profibus network which is made up of the products of other factories
  通过这两种产品的开发，交流变频调速器网络控制功能得到了实现，既可以通过rs485组网进行网络控制，也可以挂接到其它厂家产品组成的profibus网络上。
• These newly develope series of products which are improved form its original models , are equipped with environment - protecting hood . added with another kind of xquipment with can be applied to absorb the liquid left after pouring using vacuum . so these s no drop or leaking
  该系列产品是新研制开发的一种灌装机，它是在原机型基础上改进完善，安装了环保防护罩，变频调速器，增设另一套利用真空吸收灌装完毕后残余液的装置，确保灌装无滴漏。
• The upper one is a ipc 610 industrial controlling microcomputer in which variables can be set ; the lower one , ( a plc ) , by processing data from the single chip computer , mediates the velocity of outflow of grains and keeps it in the most suitable range by controlling the speed of motor
  可编程控制器( plc )接收由单片机送来的检测数据，根据建立的控制模型计算出合理的排粮速度，输出控制信号给变频调速器，使排粮电机在最优转速下工作达到控制水分的目的。
• This text will analyze technology requirement and realization way of flow field adjusting system of fl - 8 , and expatiate the theory of frequency conversion . ac variable frequency speed regulator controlled by dtc become the key technology of this facility and make it more advantage and credible . new method and tactic to control wind speed was given
  本文分析了fl - 8风洞流场调节系统的技术需求和实现途径；阐述了变频原理， dtc控制的交流变频调速器作为风洞流场调节系统的先进性和高可靠性及关键技术；提出了风洞风速控制的方法和策略。
• The author analyzed and researched temperature controller with pure delay time and great inertia , and also analyzed and researched that how to make certain the parameter of temperature controller . after analyzing plc controlling system and controlling program , the author continued to analyzing feature and application of ac inverter , and giving a judgment of the controlling system in the end
  同时，本文还主要研究大惯性、大滞后温度控制系统的控制及其参数整定；分析plc的控制回路及控制程序；分析交流变频调速器的特性及其应用；并对整个系统的改造进行分析、评价
• And the inverter becomes smarter . during the designing , the pulse - processing ciucuit is preset which processes the feedback pulse from photoelectric encoder for close - looping the system in future . by using the circuit and quadrature mode of timer 1 in 80c196mc , incremental encoder can be embedded into the velocity regulation system more easily and the domain the inverter can be used in is enlarged too
  在系统设计过程中，考虑到了变频调速器进一步改进为闭环系统的需要，在电路中预设了光电码盘反馈脉冲的处理电路，通过这个电路的处理，并利用80c196mc中定时计数器1的90相移计数工作方式，可大大简化使用增量式光电码盘时脉冲处理的复杂度，这也扩大了本文中变频调速器的应用范围。
• Abstract : technique feature ， development situation and performance of frequency changing for velocity modulation are introduced in detail . technique problem of practical application and adaptability of electric control of frequency changing for velocity modulation in crane are discussed . througn the existing electric control problems for traditional crane ， two basic circuits and their elements of frequency changing for velocity modulation are recommended
  文摘:本文详细介绍了变频调速的技术特点、发展状况及目前变频调速器的性能特点，结合传统起重机电气控制存在的问题，讨论了变频调速器在起重机电气控制中的适用性及在实际应用中的技术问题。