Current status for the development of a modular pump-turbine in a low power range

摘要

Since the liberalization of the electricity market in Central Europe, the assignments and economic conditions for hydropower are changing. Today the hydraulic machines support the electrical grid with ancillary services and contribute to a safer and more stable electricity supply. From this point of view, a compact pump-turbine at the low power range has been developed to support the distribution grid at the best. Particular attention was paid to a modular design in order to reduce the specific manufacturing costs. The individual components of the machine unit were numerically optimized and prepared for laboratory tests. The following article reflects the state of the art and present developments of the machine unit.