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method for operating a low symmetrier and bremsstellervorrichtung for inverter with high zwischenkreisspannung.

机译:用于高对称逆变器的低对称性和易变通的方法。

摘要

1. Method for the low-loss balancing of partial voltages (U1 ... U4) at electronic partial switching elements (TP1 ... TP4 and TN1 ... TN4, ...) arranged in series in the pairs of arms the phases of a high voltage converter with a voltage-link and for suppressing over-voltage in the link, wherein the partial voltages (U1 ... U4) are drawn from the link voltage (Ud) by a number of partial condensers (C1 ... C4), corresponding in number to the number of partial switching elements per arm, arranged in series and connected in parallel with the partial switching elements, characterised in that when a maximum permissible value of a partial voltage for an electronic partial switching element is exceeded a controllable discharge arm for the partial condenser belonging thereto is switched on and when the partial voltage falls below a minimum value is switched off again (Fig. 2).
机译:1.用于在成对的臂中串联布置的电子部分开关元件(TP1 ... TP4和TN1 ... TN4,...)处的低分压(U1 ... U4)的低损耗平衡的方法具有电压链路并且用于抑制链路中的过电压的高压转换器的三相,其中,通过多个分电容器(C1)从链路电压(Ud)提取分电压(U1 ... U4)。 ..C4),其数目与每支臂串联的部分开关元件的数量相对应,并与部分开关元件并联连接,其特征在于,当电子部分开关元件的部分电压的最大允许值为超过一个部分冷凝器的可控放电臂时,其接通,当部分电压下降到最小值以下时,再次断开(图2)。

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