Hybrid feedforward and feedback controller design for nuclear steam generators over wide range operation using genetic algorithm
- Pennsylvania State Univ., University Park, PA (United States)
In this paper, a simplified model with a lower order is first developed for a nuclear steam generator system and verified against some realistic environments. Based on this simplified model, a hybrid multi-input and multi-out (MIMO) control system, consisting of feedforward control (FFC) and feedback control (FBC), is designed for wide range conditions by using the genetic algorithm (GA) technique. The FFC control, obtained by the GA optimization method, injects an a priori command input into the system to achieve an optimal performance for the designed system, while the GA-based FBC control provides the necessary compensation for any disturbances or uncertainties in a real steam generator. The FBC control is an optimal design of a PI-based control system which would be more acceptable for industrial practices and power plant control system upgrades. The designed hybrid MIMO FFC/FBC control system is first applied to the simplified model and then to a more complicated model with a higher order which is used as a substitute of the real system to test the efficacy of the designed control system. Results from computer simulations show that the designed GA-based hybrid MIMO FFC/FBC control can achieve good responses and robust performances. Hence, it can be considered as a viable alternative to the current control system upgrade.
- Sponsoring Organization:
- National Science Foundation, Washington, DC (United States)
- OSTI ID:
- 465126
- Report Number(s):
- CONF-9603111-; ISSN 0885-8969; TRN: 97:007582
- Journal Information:
- IEEE Transactions on Energy Conversion, Vol. 12, Issue 1; Conference: 7. biennial IEEE conference on electromagnetic field computation, Okayama (Japan), 18-21 Mar 1996; Other Information: PBD: Mar 1997
- Country of Publication:
- United States
- Language:
- English
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