Hydropower plant and operating procedures for a hydropower plant

摘要

Hydropower plant comprising an upper water basin, an underwater basin, a waterway which connects the upper water basin with the underwater basin, a hydraulic machine arranged in the waterway, an electrical machine which is connected to the hydraulic machine, a converter, a power regulator and a transformer for connecting the water power plant to a transmission network, the converter comprising a network-side converter (8.1), which is connected to the transformer, and a machine-side converter (8.2), which is connected to the electrical machine, and wherein between the network-side converter (8.1) and the machine-side converter (8.2) extends a direct current intermediate circuit, and wherein the hydroelectric power plant comprises a battery storage (12) which is connected to the direct current intermediate circuit, and wherein the hydroelectric power plant comprises a step-up / buck converter (11), which between the DC intermediate enkreis and the battery storage (12) is arranged, and wherein the power regulator is designed so that it can control the network-side converter (8.1), the machine-side converter (8.2) and the step-up converter (11) simultaneously.