1.產品概述 / Product Overview

  工業級APF是我公司引進美國技術針對工業應用環境開發的諧波治理裝置，有源模塊結構采用立式設計。功率組件采取大容量英飛凌IGBT，器件額定功率選值大于有效值的3倍以上，其濾波電容組件采用高壓濾波電容，抗高電壓畸變率強，留有足夠大的安全余量，在負載較大沖擊下，能長期工作。模塊采取軸流風機散熱，風量大，風壓足，散熱好; 整柜采取下進上出風模式，整柜頂部采用軸流風機抽風，底部采取防塵百葉窗進風，可較大程度隔離外部灰塵，能適合高溫工業現場及環境惡劣尤其粉塵較大的場合應用。例如：粉體廠、粉石廠、瓷磚廠、水泥廠、鋼鐵冶煉等。

  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

  工業級有源電力濾波器(簡稱APF)采用現代電力電子技術和基于高速DSP器件的數字信號處理技術制成的新型電力諧波治理**設備。

  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.

  它由指令電流運算電路和補償電流發生電路兩個主要部分組成。通過外部互感器實時檢測電網中各次諧波電流和無功電流，得到其指令電流，指令電流運算電路實時監視線路中的電流，并將模擬電流信號轉換為數字信號，送入高速數字信號處理器(DSP)對信號進行處理，將諧波與基波分離，并以脈寬調制(PWM)信號形式向補償電流發生電路送出驅動脈沖，驅動IGBT或IPM功率模塊，生成與電網諧波電流幅值相等、極性相反的補償電流注入電網，對諧波電流進行補償或抵消，主動消除電力諧波。

  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.型號說明 / Model Description

  4.工業級APF常用選型表/ General selection table for industrial APF

  5.技術參數 / Technical Parameters