IC697ALG230
IC697ALG230
IC697ALG230
厦门光沃自动化设备有限公司
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IC697ALG230
HD71控制原理及技术特点
电网电压经主变压器隔离移相后为功率单元供电，每个功率单元为一个单相交-直-交电压型逆变器，单元串联星接后形成三相变频电源给高压电动机供电。根据串联单元级数的不同，产品分为6kV、10kV两个系列。主变压器采用移相整流方式，输入功率因数高，输入电压电流谐波小。满足IEEE519-1992和GB/T 14549-93对电压和电流严格的谐波失真要求。无需任何功因补偿和谐波抑制装置。变频器输出采用多重化PWM技术，输出为近乎的正弦波，无须加输出滤器。电动机谐波损耗小，转矩脉动小，无明显电动机噪声。电动机不需降额使用。输出dV/dt和共模电压小，对电动机无附加电应力损害。
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