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Design of Grid-Connected Photovoltaic Generation System with High Step-Up Converter and Sliding-Mode Inverter Control

机译:具有高升压转换器和滑模逆变器控制的网格连接光伏发电系统的设计

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In order to make the PV generation system more flexible and expandable, the later power circuit is composed of a high step-up converter and a pulse-width-modulation (PWM) inverter. In the dc-dc power conversion, the high step-up converter is introduced to improve the conversion efficiency in conventional boost converters and to allow the parallel operation of low-voltage PV modules. Moreover, an adaptive total sliding-mode control (ATSMC) system is designed for the current control of the PWM inverter to maintain the output current with a higher power factor (PF) and less variation under load changes. Experimental results are given to verify the validity and reliability of the high step-up converter and the PWM inverter control for a grid-connected PV generation system.
机译:为了使PV生成系统更加灵活和可扩展,后来的电源电路由高升压转换器和脉冲宽度调制(PWM)逆变器组成。在DC-DC电力转换中,引入了高升压转换器以提高传统升压转换器中的转换效率,并允许低压PV模块的并行操作。此外,为自适应总滑模控制(ATSMC)系统设计用于PWM逆变器的电流控制,以将输出电流保持在具有更高功率因数(PF)的输出电流,并且在负载变化下的变化较小。给出了实验结果验证了高压升压转换器的有效性和可靠性,以及用于网格连接的PV生成系统的PWM逆变器控制。

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