Work

Synchronization of an On-Board Photovoltaic Converter Under Conditions of High Dynamic Voltage Frequency Change

Year: 2024

Type: article

Abstract: Decarbonization of energy systems is forcing the development of renewable energy generation and consumption technologies. Photovoltaic systems are used in almost every industrial field, including autonomous power systems. Such systems are used, for example, on ships, space vehicles, or flying platforms. The use of energy generated from renewable sources requires a grid converter. To effectively use clean renewable energy, it is necessary to properly control power. In such a case, the precise synchronization of the converter with the grid becomes a key challenge. When the converter is connected to voltage with constant frequency, the synchronization process does not cause a problem. In the case of connecting the grid inverter to buses with changing voltage frequency, known synchronization algorithms become unsuitable. It has been shown that the use of frequency variation information causes deviations from the unit amplitude of synchronization signals, so a new system was proposed for adapting to variable frequency using a generalized second-order integrator. As a result, synchronization signals of unit amplitude were obtained. With the proposed method, the proportional resonant controller was able to control the active and reactive components of the current even with changes in voltage frequency, by adapting the resonant frequency.

Source: Energies

DOI: 10.3390/en17246302

Authors: Tomasz Binkowski, Ľubomír Beňa, Dušan Medveď, Paweł Pijarski

Institutions: Rzeszów University of Technology, Technical University of Košice, Lublin University of Technology

Language: English

Topic: Microgrid Control and Optimization

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure, Climate action

Open Access status: gold

Estimated APC paid: $2,955