DYNAMIC RECONFIGURATION OF PHOTOVOLTAIC SOURCES FOR ALTERNATING CURRENT GENERATION

• Date: 2026
• Main Author: Bondarenko , D.
• Format: Article
• Language: English
• Published: Institute of Renewable Energy National Academy of Sciences of Ukraine 2026
• Subjects: reconfigurable source; photovoltaic source; alternating current; dynamic commutation; solar cell.
• Online Access: https://ve.org.ua/index.php/journal/article/view/605
• Journal Title: Vidnovluvana energetika

This paper demonstrates the possibility of generating alternating current from photovoltaic sources by reconfiguring the internal topology of the energy source's electrical circuits. It is proposed to use switched connections instead of fixed inter-element interconnections within the photovoltaic source. These connections perform automated coupling and shunting of elements within the source, or facilitate parallel and series connections of the elements. Such switching can be dynamic, controlled, and periodically time-varying, which enables the creation of an AC power source. To evaluate the feasibility of obtaining alternating current through dynamic switching, a simulation was conducted. The results confirm the claimed capability. Furthermore, as a result of this work, a circuit and software solution for implementing a dynamically reconfigurable photovoltaic source were developed. An experimental setup was assembled, featuring MOSFETs as switches and a microcontroller unit as the control device. Firmware was developed to manage the microcontroller, thereby defining the time-varying configuration of the power source's electrical circuit. An experiment was conducted, resulting in the generation of alternating current at utility frequency. The waveform of the obtained alternating current is quasi-harmonic and stepped in nature. The use of a significantly larger number of photovoltaic cells and smoothing elements would produce a waveform that closely approximates a pure sine wave.