Cascaded H-bridge multilevel inverter for renewable energy generation

India-Japan Expert Group Meeting on Biomolecular Electronics & Organic Nanotechnology for Environment Preservation

物理学;生物科学;生态环境科学

Pandey, Ravikant^1 ; Tripathi, Ravi Nath^1 ; Hanamoto, Tsuyoshi^1

Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu

808-0196, Japan^1

关键词: Active and Reactive Power;    Cascaded H bridge multilevel inverters (CHBMLI);    Cascaded h-bridge multilevel inverters;    Electrical characteristic;    Indirect current control;    Renewable energy generation;    Renewable energy source;    Synchronous reference frame theories;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/704/1/012020/pdf
DOI  :  10.1088/1742-6596/704/1/012020

来源: IOP

【 摘 要 】

In this paper cascaded H-bridge multilevel inverter (CHBMLI) has been investigated for the application of renewable energy generation. Energy sources like solar, wind, hydro, biomass or combination of these can be manipulated to obtain alternative sources for renewable energy generation. These renewable energy sources have different electrical characteristics like DC or AC level so it is challenging to use generated power by connecting to grid or load directly. The renewable energy source require specific power electronics converter as an interface for conditioning generated power .The multilevel inverter can be utilized for renewable energy sources in two different modes, the power generation mode (stand-alone mode), and compensator mode (statcom). The performance of the multilevel inverter has been compared with two level inverter. In power generation mode CHBMLI supplies the active and reactive power required by the different loads. For operation in compensator mode the indirect current control based on synchronous reference frame theory (SRFT) ensures the grid operating in unity power factor and compensate harmonics and reactive power.