对变频器电路常见的干扰作了分析，并提出了抗干扰措施。
Some analysis is made toward the common interference of frequency converter circuit and some countermeasures to interference are suggested.
逆变器主电路的可靠性是变频器等功率转化装置安全合理使用的保证。
The reliability in power circuit of inverter is assurance for VFD and other power transfer application.
维修部：维修各行业电路板，机加工设备系统，主板，控制器，电源，变频器，PLC触摸屏等。
Maintenance department: maintenance industries circuit boards, machine equipment system, main board, controller, power supply, frequency converter, PLC and touch screen.
文章分析了适用于变频器谐波抑制的串联型有源电力滤波器的基本工作原理，并对其控制方法和控制电路进行了研究。
The basic operation principle of the series active power filter for harmonic suppression of frequency converter is analyzed in this paper, and its control method and control circuit are studied.
本文介绍了用于PWM变频器的两种制动电路。此电路在实际应用中效果很好。
This paper presents two kinds of braking circuits with PWM frequency converter, this circuit possess good effect in practical application.
针对变频器输出频率显示信号中的高频噪声，设计了相应的噪声消除电路，给出了进一步提高系统抗干扰能力的措施。
According to the high frequency noise of inverter output frequency display signal, the noise absorbing circuit is designed, the measures of reducing noise are presented.
该电路已经在高压变频器的开发中得到应用。
This circuit has been applied in development of high voltage frequency converter successfully.
变频器的控制电路采用数字技术，容易升级、适用范围广。
Its control circuit adopts digit technology, so it is easily promoted, its applicable bound is wide.
介绍变频器驱动一用一备负载的自动定时轮换控制电路及组合开关联接。
This paper introduces the automatic control circuit time in turn driven by inverter with the using and the reserved load and combined switch connection.
从而有可能避免使用专用硬件下变频器，使硬件电路更简化和增加系统的灵活性。
This will avoid using special hardware of digital down converter, make hardware simpler and increase the flexibility of system.
给出了电力拖动系统的主回路电路图、PLC和变频器的外部接线图。
It presents the circuitry diagram of the main loop of electric drive system and the external wire-connection diagrams of PLC and converter.
以地铁车辆用DC750V牵引变频器为例，采用IGBT作为主要开关元件设计了逆变器主电路及控制系统，并利用MATLAB/SIMULINK进行了仿真。
It is designed that the main circuit and control system using the IGBT as its switch element based on the DC750V traction transducer of metro vehicles. The system is also simulated by MATLAB/SIMULINK.
在此详细介绍了DIP - CIB模块的内部电路、半导体硅片技术、封装技术，以及如何配合专用的HVIC来实现通用变频器的小型化设计。
This paper describes the internal circuit of the DIP-CIB module, semiconductor chip technologies, package technologies and general purpose inverter design by using HVIC and the DIP-CIB module.
从其电路的结构上分为交—直—交和交—交变频器。
From the structure of the circuit is divided into cross - straight - to pay and pay - cycloconverter.
所述的变频器控制电路外部设置有壳体，在壳体上设置有接线端子、控制开关、指示灯和显示屏。
A shell body is arranged outside the frequency converter control circuit and is provided with a wiring terminal, a control switch, an indication light and a displaying screen.
讨论了变频器的各部分电路的设计，计算系统各部分的参数，介绍所用到元件的选型方法。
The paper had a discussion on each circuit design of the converter and each part parameters of the computer system. The paper introduced the selection method of the elements applied.
介绍了利用TD 2 10 0变频器控制四台泵循环软起动，实现小区供水的电路设计及控制功能。
The paper introduces the circuit design and its function used for water supply of residential zone by adopting TD2100 converter to control four pumpers with circulation soft start.
主电路采用交—直—交电压源型变频器，功率器件采用智能功率模块IPM。
Main circuit adopts the AC-DC-AC structure and uses IPM(Intelligent Power Module) as main switch.
使用IPM代替传统变频器的功率级和厚膜驱动电路改造变频器，提出了使用智能功率模块应注意的几个问题。
The power lever and thick film driving circuit of traditional inverter were replaced by IPM to evloution inverter. Some problems in using IPM are proposed and solved.
该系统主电路采用三电平PWM变频器，以16位单片机80 98为核心组成数字控制系统，并采用空间电压矢量法的控制方法。
The device uses three-level PWM transducer as the main electric circuit of the system, 16 bits CPU 8098 as the the core of the digital control system.
根据控制要求对直流稳压电源、变频器等其它硬件进行了选型，并对系统各部分硬件电路进行设计。
We also choose the type of stable voltage direct current and frequency conversion motor, and design the hardware circuit of the sub-systems.
该缓冲电路可以减少电网对变频器的上电冲击。
The cushion circuit can reduce the electrification impact of the power network to the transducer.
以L波段为主，论述和设计了兼容多波段上变频器，并且完成了实际电路的制作与调试。
In this paper, taking L-band as the core, a design Compatible Multi-band Up-converter for radio frequency is introduced, and the real circuit is accomplished and tested.
本系统具有控制简单、外围电路较少、性能价格比高等优点，适合于风机、水泵用变频器的性能要求。
The system had the advantages of simple control, little peripheral, high performance and low price, which would meet the demands of the inverters using in fan and water pump.
本文对中压大功率电动机变频调速的技术特点和电路结构进行了分析，阐述了多电平变频器的工作原理。
The technical features of medium voltage high power inverter and the basic structure of its electric circuits are analyzed.
主控电路采用本公司研制的PLC控制、触摸屏显示，变频器控制，良好的人机界面，操作集中、直观、方便。
The main control circuit adopt the PLC developed by our own company, touch screen display and controlled by transducer, better interactive interface, intensive operation.
串联H桥多电平变频器的主回路从结构上可分为三相电容滤波不可控整流电路和单相电压型全桥逆变电路。
The series H-bridge multilevel converter's power circuit is composed of uncontrolled rectifier with filtering capacitor and single phase H-bridge voltage-type inverter.
电压型变频器直流环节并入电容对整流电路的输出进行滤波，理论上电容值越大，电压纹波越小，但是从空间和成本上考虑并不能如此。
The three phase half-wave controlled rectifying circuit is taken as the example in this paper to inllustrate the commutation overlap probelm.
电压型变频器直流环节并入电容对整流电路的输出进行滤波，理论上电容值越大，电压纹波越小，但是从空间和成本上考虑并不能如此。
The three phase half-wave controlled rectifying circuit is taken as the example in this paper to inllustrate the commutation overlap probelm.
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