Abstract

In this paper, we show that, when operating in the stand-alone mode, self-oscillating modes, due to the interaction of subsystems, are possible in aggregated (composite, complex) power supplies and distributed power supply systems (DPSs) that use the “bus” approach and consist of stable modules with large margins of stability in amplitude and phase of loopback gain of negative feedback. The self-excitation of the system is shown to be due to the complex nature of the input and output impedances and the negative active (real) component of the input impedance of the output DPS subsystem. The negative nature of the active component of the input impedance of the output (load) subsystem with stabilized output voltage, i.e., with negative feedback, is due to the falling nature of its input current–voltage characteristic. The design of aggregated devices and DPSs is shown to require a systematic approach, provided that the properties and interactions of subsystems are taken into account.

中文翻译：

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设计二次电源聚合和分布式系统中的稳定性问题

摘要

在本文中，我们表明，当以独立模式运行时，由于子系统之间的相互作用，自振荡模式在使用以下功能的聚合（复合，复杂）电源和分布式电源系统（DPS）中是可能的“总线”方法由稳定的模块组成，这些模块在负反馈的环回增益的幅度和相位方面具有很大的稳定性。所示的系统自激是由于输入和输出阻抗的复杂性质以及输出DPS子系统的输入阻抗的负有源（实数）分量引起的。具有稳定的输出电压（即具有负反馈）的输出（负载）子系统的输入阻抗的有源分量的负性是由于其输入电流-电压特性的下降性所致。