General theory of multi-leg power conversion circuits based on neutral point voltage
General theory of multi-leg power conversion circuits based on neutral point voltage
复制标题
基于中性点电压的多桥臂功率变换电路的一般理论
DOI：
10.1109/isie.2000.930343
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
I. Takahashi
中科院分区：
文献类型：
--
作者：
I. Ando;I. Takahashi
介绍了多支路功率转换电路中基于输出中性点电压控制的主电路结构的一般原理和支路控制方法。在对称正弦线输出电压理想的条件下，通过线性规划方法得到了输出中性点电压的可控波动范围。通过分析得出以下几点：(1)基于输出中性点电压控制的简单理论，构建了多支路功率转换电路的主电路和控制方法；(2)通过计算输出中性点电压的最小可控波动范围，得到各理想主电源电路的可控最大线路电压；(3)通过简单的中性点电压控制，也可以实现拆装和普通支腿转换电路，实现高效率、低成本、小体积的变流器。显然，该理论扩展了传统的方案，在对称正弦线输出电压的情况下，它是所有多分支转换电路的简单而标准的理论。
This paper describes the general theory of the main circuit constructions and control methods of legs based on output neutral point voltage control under multi-leg power conversion circuits. A controllable fluctuation range of the output neutral point voltage is obtained by the linear programming method under the condition of the desired symmetrical sinusoidal line output voltage. From the analysis, the following points are obtained: (1) the main circuits and control methods of the multi-leg power conversion circuits are constructed by simple theory based on output neutral point voltage control; (2) the controllable maximum line voltage of the each ideal main power circuits is obtained by calculating of the minimum controllable fluctuation range of the output neutral point voltage; and (3) the removed and the common leg conversion circuits can also be realized by simple neutral point voltage control, and high efficiency, low cost and small size converters are achieved. It is clear that this theory expands conventional schemes and it is simple and standard theory on the all multi-leg conversion circuits in the case of symmetrical sinusoidal line output voltage.