1.产品概述 / Product Overview

  工业级APF是我公司引进美国技术针对工业应用环境开发的谐波治理装置，有源模块结构采用立式设计。功率组件采取大容量英飞凌IGBT，器件额定功率选值大于有效值的3倍以上，其滤波电容组件采用高压滤波电容，抗高电压畸变率强，留有足够大的安全余量，在负载较大冲击下，能长期工作。模块采取轴流风机散热，风量大，风压足，散热好; 整柜采取下进上出风模式，整柜顶部采用轴流风机抽风，底部采取防尘百叶窗进风，可较大程度隔离外部灰尘，能适合高温工业现场及环境恶劣尤其粉尘较大的场合应用。例如：粉体厂、粉石厂、瓷砖厂、水泥厂、钢铁冶炼等。

  Industrial APF is a harmonic suppression device developed by Armat introducing American technology for industrial application environment. The active module structure adopts vertical design. The power module adopts Infineon large-capacity IGBT, and the rated power of the device is more than 3 times the effective value. The filter capacitor module is the high-voltage filter capacitor, which has strong resistance to high voltage distortion rate and a enough safety margin, and can work for a long time under the impact of large load. The module uses the axial flow fan for heat dissipation, with high air flow, sufficient air pressure and good heat dissipation. The whole cabinet adopts the lower air inlet and upper air outlet mode, the axial flow fan is used at the top of the whole cabinet for air draft, and the dustproof shutter is used at the bottom of the whole cabinet for air intake, which can isolate the external dust to a greater extent and be suitable for the high temperature industrial site and harsh environments, especially the environments with much dust, such as powder factory, powder stone factory, ceramic tile factory, cement factory，Iron and steel smelting and so on.

  2.工作原理 / Operating Principle

  工业级有源电力滤波器(简称APF)采用现代电力电子技术和基于高速DSP器件的数字信号处理技术制成的新型电力谐波治理**设备。

  Industrial active power filter (APF) is a novel kind of special equipment for power harmonic suppression, which adopts modern power electronic technology and digital signal processing technology based on high-speed DSP devices.

  它由指令电流运算电路和补偿电流发生电路两个主要部分组成。通过外部互感器实时检测电网中各次谐波电流和无功电流，得到其指令电流，指令电流运算电路实时监视线路中的电流，并将模拟电流信号转换为数字信号，送入高速数字信号处理器(DSP)对信号进行处理，将谐波与基波分离，并以脉宽调制(PWM)信号形式向补偿电流发生电路送出驱动脉冲，驱动IGBT或IPM功率模块，生成与电网谐波电流幅值相等、极性相反的补偿电流注入电网，对谐波电流进行补偿或抵消，主动消除电力谐波。

  It consists of two main parts: command current operational circuit and compensation current generating circuit. The command current is gotten by detecting the harmonic current and reactive current in the power grid in real time through the external transformer, the command current operational circuit monitors the current in the circuit in real time, converts the analog current signal to the digital signal, sends the digital signal into the high speed digital signal processor (DSP) for signal processing to separate the harmonic from the fundamental wave, and sends the drive pulse to the compensation current generating circuit in the form of pulse width modulation (PWM) signal to drive IGBT or IPM power module to generate and inject the compensation current with equal amplitude and opposite polarity to the power grid harmonic current into the power grid, to compensate or offset the harmonic current and actively eliminate the power harmonic.

  3.型号说明 / Model Description

  4.工业级APF常用选型表/ General selection table for industrial APF

  5.技术参数 / Technical Parameters