Advances in Controls to Govern Mini and Micro Hydropower Systemsby David L. Hagen, World Impact Technology Inc, Kailua-Kona, HI, USA,
Document Type: Proceeding Paper
Part of: Waterpower '85
Conventional controls available for small hydropower systems are surveyed. Electronic load controls for micro hydropower systems are described. Recent developments in the literature are reviewed, particularly focusing on the use of microcomputers and digital PID algorithms in controlling hydro systems. Nonlinear and adaptive controls are being developed and applied in larger systems. Electronic load control significantly improves performance in governing rotor dynamics. Hybrid systems utilizing all secondary and off peak energy can greatly improve system economics. Features of flow and load control are compared. Recommendations are given for further research on these concepts.
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