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Old 05-11-2011, 10:15 AM   #1
qdsk90vfxl
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Default |清大圣科气化炉反骗子.|变频器工作原理,变频器工作

需要设计一台专用的装置,该装置的一端和电网电源连接,以接受来自电网中固定频率的电源的电能;另一端和电 动机连接,为电动机提供频率可变的交流电源××清大圣科×清大圣科电 焊条×清大圣科电焊条设备×清大金桥×清大金桥电焊条设备&time s;清大圣科气化炉×www.qhsk.cn×清大圣科科技有限公司&times ;×
至于变频器工作原理笔者就简单的跟大家说说,就以常见的交-直-交型变频器为例,简要说明一下变频器的工作 原理××清大圣科×清大圣科电焊条×清大圣科电焊条设备 ×清大金桥×清大金桥电焊条设备×清大圣科气化炉×ww w.qhsk.cn×清大圣科科技有限公司××
想学习电工培训的可能都要先了解到变频器工作原理和变频器工作原理图,笔者今天就简单的跟大家说说变频器工 作原理和变频器工作原理图,希望给大家带来一点帮助吧××清大圣科× 清大圣科电焊条×清大圣科电焊条设备×清大金桥×清大金桥电焊条设备 ×清大圣科气化炉×www.qhsk.cn×清大圣科科技有限公司& times;×
若直接将电网的交流电源接至交流电动机,是无法改变通入交流电动机的电源频率,无法实现电动机的变频调速& times;×清大圣科×清大圣科电焊条×清大圣科电焊条设备&ti mes;清大金桥×清大金桥电焊条设备×清大圣科气化炉×www.q hsk.cn×清大圣科科技有限公司××
交-直-交型变频器的工作原理是借助微电子器件、电力电子器件和控制技术,先将工频电源经过二极管整流成直 流电,再由电力电子器件把直流电逆变为频率可调的交流电源××清大圣科&time s;清大圣科电焊条×清大圣科电焊条设备×清大金桥×清大金桥电焊条 设备×清大圣科气化炉×www.qhsk.cn×
先来说说变频器的作用吧,电网交流电源的频率是固定的,我国电网的频率是50Hz×&time s;清大圣科×清大圣科电焊条×清大圣科电焊条设备×清大金桥&ti mes;清大金桥电焊条设备×清大圣科气化炉×www.qhsk.cn&time s;清大圣科科技有限公司××
这种装置就是变频器××清大圣科×清大圣科电焊条×清大 圣科电焊条设备×清大金桥×清大金桥电焊条设备×清大圣科气化炉&t imes;www.qhsk.cn×清大圣科科技有限公司××
清大圣科科技有限公司×× 其工作原理如下图所示××清大圣科×清大圣科电焊条×清 大圣科电焊条设备×清大金桥×清大金桥电焊条设备×清大圣科气化炉& times;www.qhsk.cn×清大圣科科技有限公司××
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