- 產品分類：無功功率補償柜系列
- 公司品牌：誠川電力
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APF 工作原理 Working principle
有源電(dian)力濾波(bo)器(qi)通(tong)(tong)過(guo)(guo)外(wai)部(bu)(bu)(bu)電(dian)流(liu)互(hu)感器(qi) CT，實時檢測負載電(dian)流(liu)，并(bing)通(tong)(tong)過(guo)(guo)內部(bu)(bu)(bu) DSP 計算，提取出負載電(dian)流(liu)的諧波(bo)成分，然后通(tong)(tong)過(guo)(guo) PWM 信號發(fa)送給內部(bu)(bu)(bu) IGBT，控制逆(ni)變器(qi)產生一個和負載諧波(bo)大小相等、方向相反的電(dian)流(liu)注(zhu)入到電(dian)網中(zhong)補償諧波(bo)電(dian)流(liu)，實現濾波(bo)功能。
The active power filter detects the load current in real time through the external current transformer CT, and extracts harmonic components of the load current through internal DSP calculation, and then sends the harmonic components to the internal IGBT through PWM signals to control the inverter to generate a current with the same magnitude and opposite direction as the load harmonic and inject the current into the power grid to compensate the harmonic current, thus realizing the filtering function.
