Hydraulic Transients—Helms Pumped Storage Projectby Richard D. Stutsman, Pacific Gas & Electric, San, Francisco, CA, USA,
Robert A. Lambert, Pacific Gas & Electric, San, Francisco, CA, USA,
Abstract: Pacific Gas and Electric Company's Helms Pumped Storage project is a large underground hydroelectric development which went into commercial operation in June 1984. Because of its complexity, PGandE felt that classic methods of analyzing surge and waterhammer were inadequate. PGandE decided to develop a computer program which models these transient conditions by the method of characteristics. The program, named 'HAMMER' combines this computer modeling technique with pump-turbine performance data (four quadrant curves), and turbine wicket gate operation to give very good results. 'HAMMER' was not only used to aid in the design of the project's hydraulic components, but was used very successfully during start-up of Helms.
Subject Headings: Computer models | Hydro power | Computer software | Transient response | Computer analysis | Waste storage | Water storage | Energy storage
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