On the basins of attraction of parallel connected buck switching converters
On the basins of attraction of parallel connected buck switching converters
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并联降压开关变换器的吸引盆
DOI：
10.1109/iscas.2006.1693916
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
C. Tse
中科院分区：
文献类型：
--
作者：
Yuehui Huang;C. Tse
本文描述了主从式均流方式下降压型开关变流器并联时的共存吸引子。我们给出了所需吸引子和非所需吸引子的吸引池，其中提供了有关热插拔操作条件的设计信息。该系统采用典型的比例积分(PI)控制器进行调节。结果表明，在相同的控制参数下，对于不同的初始条件，系统将收敛到不同的吸引子。给出了仿真结果，说明了这一现象。本研究对实际设计具有一定的指导意义。具体地说，我们证明了由线性方法(即只考虑局部稳定性)得到的稳定区域可能是过度乐观的，因为全局稳定区域在参数空间中被发现是更具限制性的
This paper describes the coexisting attractors of parallel connected buck switching converters under a master-slave current sharing scheme. We present the basins of attraction of desired and undesired attractors, which provide design information on the conditions for hot-swap operations. The system employs a typical proportional-integral (PI) controller for regulation. It is shown that the system will converge to different attractors for different initial conditions with the same control parameters. Simulation results are given to illustrate the phenomenon. This study is relevant to practical design. Specifically we show that the stability regions obtained from linear methods (i.e., considering only local stability) can be over-optimistic as the global stability regions are found to be more restrictive in the parameter space