Abstract—One promising trend in making voltage converters more reliable is to design them on the basis of backbone modular architecture, combined redundancy, and rotation of main and backup power channels. A technique is proposed for this converter for calculating the upper and the lower failsafe operation probability estimates that is based on using the standardized model for the sliding loaded redundancy group. It is shown that the session rate of failures can be used as the channel fail-safety indicator in the rotation of channels. The proposed technique allows finding these estimates as time functions and considering the rate of channel failures not only in the converter’s running mode, but in the standby mode as well. An example of calculating the converter’s failsafe operation estimates is presented; a similar calculation by imitative modeling is provided to confirm the obtained results. It is shown that a shortened full channel rotation cycle makes the channels spend the resource in a more even manner, has no effect on the converter’s fault-free performance figures at an absolutely reliable switch, and reduces them in the case of an unreliable switch.

中文翻译：

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具有功率通道旋转的多通道电压转换器的故障安全性确定

摘要—使电压转换器更加可靠的一个有希望的趋势是，在骨干模块化架构，组合冗余以及主电源和备用电源通道轮换的基础上进行设计。提出了一种针对此转换器的技术，该技术基于使用标准化模型的滑动负载冗余来计算上下故障安全操作概率估计组。结果表明，会话失败率可以用作信道旋转中的信道故障安全指标。所提出的技术允许找到这些估计作为时间函数，并且不仅在转换器的运行模式下而且还在待机模式下考虑信道故障的速率。给出了计算转换器的故障安全运行估计值的示例。通过模仿建模进行了类似的计算，以确认获得的结果。结果表明，缩短的全通道循环周期使通道以更均匀的方式使用资源，在绝对可靠的开关下不会影响转换器的无故障性能指标，而在开关不可靠的情况下会降低转换器的无故障性能指标。