Review of Control Techniques in Microinverters

Sensors

Jaime Rohten¹  Javier Muñoz²  Diego Rojas²  Marco Rivera² 

[1] Department of Electrical and Electronic Engineering, Universidad Del Bío-Bío, Avenida Collao 1202, 4051381 Concepción, Chile;Engineering Systems Doctoral Program, Faculty of Engineering, University of Talca, 3340000 Curicó, Chile;

关键词: control strategies;    DC-DC converter;    DC-AC converter;    microinverter;    maximum power point tracking;    photovoltaic;   

DOI  :  10.3390/s21196486

来源: DOAJ

【 摘 要 】

The use of renewable energies sources is taking great importance due to the high demand for electricity and the decrease in the use of fossil fuels worldwide. In this context, electricity generation through photovoltaic panels is gaining a lot of interest due to the reduction in installation costs and the rapid advance of the development of new technologies. To minimize or reduce the negative impact of partial shading or mismatches of photovoltaic panels, many researchers have proposed four configurations that depend on the power ranges and the application. The microinverter is a promising solution in photovoltaic systems, due to its high efficiency of Maximum Power Point Tracking and high flexibility. However, there are several challenges to improve microinverter’s reliability and conversion efficiency that depend on the proper control design and the power converter design. This paper presents a review of different control strategies in microinverters for different applications. The control strategies are described and compared based on stability, dynamic response, topologies, and control objectives. One of the most important results showed that there is little research regarding the stability and robustness analysis of the reviewed control strategies.

【 授权许可】

Unknown