The use of power converter-fed synchronous machines (CFSMs) in pumped storage hydropower significantly enhances its flexibility by offering several key benefits:
- Operational Flexibility: CFSMs allow for variable-speed operation, enabling the plant to run efficiently both during power generation and pumping modes. This flexibility supports enhanced grid ancillary services, such as synchronous condenser and static synchronous compensator operations.
- Cost-Effective Upgrades: The integration of CFSMs facilitates cost-effective upgrades to existing hydropower facilities. Many traditional plants already utilize synchronous machines, making it easier to adopt this technology without major overhauls.
- Enhanced Startup Times: In pumping mode, CFSMs minimize startup times without requiring dewatering, improving responsiveness and reliability. This capability is crucial for supporting grid stability in systems dominated by renewable energy sources.
- Efficiency Improvements: CFSMs can optimize turbine efficiency, especially under partial load conditions. They also allow for adjustments in operational parameters to achieve lower total costs across the generator system.
- Technical Adaptability: The use of high-power converters enables variable-speed pumped hydro storage plants, leveraging the existing electrical machine infrastructure with the added benefits of modern converter technology.
Overall, the use of CFSMs in pumped storage hydropower improves efficiency, reduces costs, and enhances operational flexibility, making it a vital component for balancing renewable energy outputs on the grid.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/how-does-the-use-of-power-converter-fed-synchronous-machines-enhance-the-flexibility-of-pumped-storage-hydropower/
