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首页> 外文期刊>International Journal of Electrical Power & Energy Systems >Interleaved step-up converter with a single-capacitor snubber for PV energy conversion applications
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Interleaved step-up converter with a single-capacitor snubber for PV energy conversion applications

机译：具有单电容器缓冲器的交错式升压转换器，用于光伏能量转换应用

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摘要

In this paper, an interleaved step-up converter with a single-capacitor snubber for PV energy conversion applications is proposed. The step-up converter adopts two sets of boost converters with an interleaved fashion and coupled-inductor technology to reduce output ripple current and increase output power level. To achieve higher conversion efficiency and reduce switching losses of the proposed converter, a lossless single-capacitor turn-off snubber is introduced. Therefore, the conversion efficiency can be increased significantly. In order to draw the maximum power from the PV arrays, a perturbation-and-observation method and a microcontroller are associated to implement maximum power point tracking (MPPT) algorithm and power regulating scheme. Finally, a prototype of a soft-switching interleaved softswitching boost converter with coupled inductors has been built and implemented. Experimental results have obtained to verify the performance and feasibility of the proposed converter for PV arrays applications.
机译：本文提出了一种用于光伏能量转换应用的具有单电容器缓冲器的交错式升压转换器。升压转换器采用两组采用交错方式的升压转换器和耦合电感技术，以减少输出纹波电流并提高输出功率水平。为了实现更高的转换效率并减少所提出转换器的开关损耗，引入了一种无损单电容器关断缓冲器。因此，可以显着提高转换效率。为了从光伏阵列中获取最大功率，微扰和观测方法与微控制器相关联，以实现最大功率点跟踪（MPPT）算法和功率调节方案。最终，构建并实现了带有耦合电感器的软开关交错式软开关升压转换器的原型。已经获得实验结果，以验证所提出的用于光伏阵列应用的转换器的性能和可行性。

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