科研之友
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摘要
Inductor, electrolytic capacitor and heat sinks are the largest volume components in the inverter. Starting from the mathematical function of the filter inductor's power processing, this paper deduces the control method which can reduce the volume of inductor, the volume of decoupling capacitor and the loss of switching devices. According to the control method, a new boost type power decoupling single-phase inverter that improves inverter's power density is derived. A Matlab simulation model and an RT-LAB hardware-in-the-loop simulation model for a system with a rated power of 750 W are built for verifying the method. Comparing with the traditional inverter topology, this topology reduces the inductance of the filter inductor and the switching losses of the devices on the basis of realizing the power decoupling function. The power density and efficiency of the inverter are improved. ? 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
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