A state-space pressure and speed sensing governor for hydrogenerators

Journal Article · Sun Sep 01 04:00:00 EDT 1991 · IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/60.84315· OSTI ID:5514651

Herron, J; Wozniak, L ^[1]

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1. Univ. of Illinois at Urbana-Champaign, IL (US)

This paper researches the use of the pressure signal for speed control of hydrogenerators. This is done by first analyzing and modelling the plant, assuming an isolated, resistive load. A set of governor gains, K{sub p}, K{sub l}, and K{sub D}, are then found which give an optimal response to a change in load level using speed feedback. With this response as a benchmark, various methods are analyzed and implemented, utilizing the pressure signal, to improve upon the response of the system. A state-space observer, is designed to attenuate noise on the pressure signal. Results show that an observer-based controller using all states as input, as compared to the PID controller, improves the transient response of hydrogenerators, is effective at filtering out the noise on the pressure signal, and is more robust to both steady-state pressure and plant parameter variations.

• OSTI ID: 5514651
• Journal Information: IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States) Vol. 6:3; ISSN ITCNE; ISSN 0885-8969
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
130700* -- Hydro Energy-- Power-Conversion Systems
CONTROL EQUIPMENT
ELECTRICAL TRANSIENTS
EQUIPMENT
HYDRAULIC TURBINES
HYDROELECTRIC POWER PLANTS
MACHINERY
NOISE
POWER PLANTS
PRESSURE MEASUREMENT
SIMULATION
SPEED REGULATORS
TRANSIENTS
TURBINES
TURBOMACHINERY
VOLTAGE DROP