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自励式可控饱和电抗器谐波分析
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2010-02-21
张勇
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简要介绍自励式可控饱和电抗器的电路、结构和特性。分析讨论单相及三相自励式可控饱和电抗器谐波问题，由于铁磁非线性，可控饱和电抗器交流绕组感应电势含有奇次谐波。讨论抑制电网电流总谐波畸变率（THD）的方法。
Abstract: The circuit topology and fundamentals of self-excited controllable saturated reactors are briefly introduced.Voltage harmonics on the ac windings of a single phase or three phase self-excited controllable saturated reactor are analyzed. It is concluded that the grid current contains only odd harmonics caused by ferro-magnetic non-linearization. The method to decrease the current THD（total harmonic distortion） in the three phase controllable saturated reactor is also discussed
关键词: 可控饱和电抗器,自励,铁磁非线性, 谐波,总谐波畸变率
Key words: controllable saturated reactor, self-excited, ferro-magnetic non-linearization, harmonics，THD
Abstract: The circuit topology and fundamentals of self-excited controllable saturated reactors are briefly introduced.Voltage harmonics on the ac windings of a single phase or three phase self-excited controllable saturated reactor are analyzed. It is concluded that the grid current contains only odd harmonics caused by ferro-magnetic non-linearization. The method to decrease the current THD（total harmonic distortion） in the three phase controllable saturated reactor is also discussed
关键词: 可控饱和电抗器,自励,铁磁非线性, 谐波,总谐波畸变率
Key words: controllable saturated reactor, self-excited, ferro-magnetic non-linearization, harmonics，THD
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