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CAPACITOR DISCHARGE IN A CELL BASED VOLTAGE SOURCE CONVERTER
CAPACITOR DISCHARGE IN A CELL BASED VOLTAGE SOURCE CONVERTER
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机译:基于电池的电压源转换器中的电容器放电
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摘要
A method and a device to discharge cell capacitors in a cell based voltage source converter. Each cell has switching elements in half bridge or full bridge configuration and a capacitor in parallel to the half or full bridge. Each cell has two terminals, whereof at least one is between two switching elements. The converter has AC and DC terminals, with the possibility to connect each of the terminals to ground, via a further switching element. A resistor is implemented into at least one of the ground connections. To discharge to capacitors, the switching elements in the respective cells are configured such, that the capacitor is in parallel connection to the terminals. The capacitors are thus discharged via the resistor to ground.
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