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Optimised inverter by switch sharing: a control solution for photovoltaic applications

机译:通过开关共享优化逆变器:光伏应用的控制解决方案

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摘要

Switch-sharing-based multilevel inverter can be useful to develop an improved-performance DC-AC converter for low-power photovoltaic applications. However, this cannot be fully achieved without having a reliable control solution. Hence, this study presents a smart control strategy equipped with an adaptive proportional-integral controller. The adaptive characteristic is established through a tuning module that continuously fine tunes only one parameter. With the tuning mechanism, the load current quality is able to be continuously retained at the acceptable level even during the presence of disturbances. To validate the control performance, experimental work has been conducted on a laboratory prototype under load-disturbance conditions.
机译:基于开关共享的多电平逆变器可用于开发用于低功率光伏应用的性能提高的DC-AC转换器。但是,如果没有可靠的控制解决方案,这是无法完全实现的。因此,本研究提出了一种配备有自适应比例积分控制器的智能控制策略。自适应特性是通过调整模块建立的,该模块仅连续微调一个参数。利用调谐机制,即使在存在干扰的情况下,负载电流质量也能够连续保持在可接受的水平。为了验证控制性能,已经在负载扰动条件下对实验室原型进行了实验工作。

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