Advanced Modeling and Control of Hybrid Renewable Energy Systems for Enhanced Power and Frequency Stability

Abstract

With fossil fuels running low and pollution on the rise, more and more people are turning to alternative. Globally, solar and wind energy are abundant and accessible. However, power generation may be irregular due to the unpredictability of these renewable resources. Consequently, hybrid renewable energy and storage systems have been created. A buck-boost bidirectional converter regulates battery charging and discharging. Using a PI controller, a current control technique is put into place to preserve power balance. Compared to systems that only use one energy source, isolated hybrid systems are typically more economical and efficient. The design of conventional controllers typically relies on mathematical models of the system. However, for more complex systems, these models can be challenging to define accurately. Even when all system parameters are known, variations can occur during operation, making it tough to design controller parameters and often requiring more time to get it right.