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METHOD FOR CONTROLLING SWITCHING BRANCH OF THREE-LEVEL CONVERTER AND SWITCHING BRANCH FOR THREE-LEVEL CONVERTER
METHOD FOR CONTROLLING SWITCHING BRANCH OF THREE-LEVEL CONVERTER AND SWITCHING BRANCH FOR THREE-LEVEL CONVERTER
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机译:三层换流器的开关支路和三层换流器的开关支路的控制方法
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摘要
Exemplary embodiments are directed to a method for controlling a switching branch of a three-level converter to enter a stop state. The switching branch including a first semiconductor switch and a second semiconductor switch, a first diode and a second diode, a third semiconductor switch and a fourth semiconductor switch, a third diode, and a fourth diode, a fifth semiconductor switch and a sixth semiconductor switch, a fifth diode, and a sixth diode, and a manner of controlling the semiconductor switches. When the switching branch is set to enter a stop state, current flowing in a main circuit of the switching branch is transferred in a controlled manner to diodes that conduct the current, when all the semiconductor switches of the main circuit of the converter are turned OFF.
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