Recent advancements in the integration of renewable energy sources, particularly wind power, have brought about significant challenges in the electrical grid. A team of researchers led by Lang Zhao from the State Grid Economic and Technological Research Institute Co., Ltd. in Beijing has published a groundbreaking study in the journal Energies, addressing these challenges through the innovative use of distributed synchronous condensers (SCs).
As wind power generation expands, the transmission end of large-scale wind power bases is grappling with issues such as high AC-DC coupling strength, low system inertia, and inadequate voltage support. Traditional reactive power compensation devices often fall short, leading to frequency instability and transient voltage fluctuations. Zhao’s research proposes a strategic solution: deploying distributed synchronous condensers at critical nodes in the transmission grid to enhance grid stability and support.
The study introduces a two-stage optimal configuration strategy for these condensers. In the first stage, the focus is on maximizing system inertia improvement per unit investment to meet dynamic frequency support requirements. This approach not only addresses immediate stability concerns but also presents a cost-effective solution for energy providers. Zhao emphasizes, “The optimal configuration scheme effectively suppressed transient overvoltage at the generator end and significantly enhanced the system’s dynamic frequency support strength.”
The second stage of the strategy refines the initial configuration by incorporating additional constraints to enhance the multiple renewable short-circuit ratio (MRSCR) and suppress transient overvoltage. This comprehensive approach ensures that both short-circuit and voltage stability are addressed, making it a valuable asset for energy companies looking to optimize their infrastructure.
The commercial implications of this research are substantial. As countries worldwide pivot towards renewable energy to meet carbon reduction goals, the ability to maintain grid stability becomes paramount. Energy providers can leverage this research to improve the reliability of their wind power generation systems while potentially reducing operational costs associated with traditional reactive power compensators.
Zhao’s work not only provides a clear path forward for integrating more renewable energy into the grid but also highlights the commercial opportunities in developing and deploying distributed synchronous condensers. This research represents a significant step toward creating a more resilient and efficient energy infrastructure, essential for the future of sustainable energy generation. The findings published in Energies offer actionable insights that can guide energy companies in their strategic planning and investment decisions.
