In the rapidly evolving energy landscape, the integration of renewable energy systems (RESs) into power grids has brought about significant challenges, notably reduced inertia and increased generation instability. Addressing these issues is crucial for maintaining grid stability and reliability. A recent study published in the IEEE Open Journal of Industrial Electronics, translated to English, explores how wind turbines (WTs) and photovoltaic (PV) systems can be harnessed to support grid operations more effectively.
The research, led by Shuo Yan from the Department of Electrical and Electronic Engineering at RMIT University in Melbourne, Australia, focuses on the potential of high-performance power conversion systems and advanced control strategies. These technologies enable RESs to provide essential ancillary services, thereby enhancing grid stability.
“By employing advanced grid-supporting controls and coordination techniques, wind and PV systems can provide voltage regulation, frequency stabilisation, and low-voltage ride-through (LVRT) performance,” Yan explains. This capability is particularly valuable given that these systems often operate below their rated capacity, leaving room for additional support.
The study delves into contemporary control and coordination strategies, including decentralised, distributed, and centralised methods. These approaches allow individual RESs to contribute to system-level stability, making the grid more resilient and adaptable.
One of the key findings is the potential for RESs to provide frequency support and low-voltage ride-through capabilities. These services are critical for maintaining grid stability during faults or sudden changes in demand. “The available power headroom in wind and PV systems can be effectively utilised to provide these ancillary services,” Yan notes.
The commercial implications of this research are substantial. As the energy sector continues to transition towards renewable sources, the ability to integrate these systems seamlessly into the grid becomes increasingly important. The strategies outlined in this study could lead to more efficient and reliable grid operations, reducing the need for costly infrastructure upgrades and enhancing the overall stability of the power system.
Moreover, the research highlights the importance of advanced control strategies in optimising the performance of RESs. By leveraging these technologies, energy providers can ensure that renewable sources contribute not just to the generation mix but also to the stability and reliability of the grid.
As the energy sector continues to evolve, the insights from this study could shape future developments in grid management and renewable energy integration. The findings underscore the need for continued innovation and collaboration in the field, paving the way for a more sustainable and resilient energy future.