| Journal: | Brazilian journal of chemical engineering |
| Database: | PERIÓDICA |
| System number: | 000308840 |
| ISSN: | 0104-6632 |
| Authors: | Etchepareborda, A1 Flury, C.A |
| Institutions: | 1Centro Atómico Bariloche, División de Control de Procesos, Bariloche, Río Negro. Argentina |
| Year: | 2002 |
| Season: | Oct |
| Volumen: | 19 |
| Number: | 4 |
| Pages: | 441-447 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Aplicado, descriptivo |
| English abstract | The design of the main control system of the CAREM nuclear power plant is presented. This plant is an inherently safe low-power nuclear reactor with natural convection on the primary coolant circuit and is self-pressurized with a steam dome on the top of the pressure vessel (PV). It is an integrated reactor as the whole primary coolant circuit is within the PV. The primary circuit transports the heat to the secondary circuit through once-through steam generators (SG). There is a feedwater valve at the inlet of the SG and a turbine valve at the outlet of the SG. The manipulated variables are the aperture of these valves and the reactivity of the control rods. The control target is to regulate the primary and secondary pressures and to monitor steam flow reference ramps on a range of nominal flow from 100% to 40%. The requirements for the control system are robust stability, low-order simple controllers and transient/permanent error bounding. The controller design is based on a detailed RETRAN plant model, from which linear perturbed open-loop dynamic models at different powers are identified. Two low-order nominal models with their associated uncertainties are chosen for two different power ranges. Robust controllers with acceptable performances are designed for each range. Numerical optimization based on the loop-shaping method is used for the controller design. The designed controllers are implemented in the RETRAN model and tested in simulations achieving successful results |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de control, Ingeniería de energéticos, Centrales nucleares, Control robusto, Reactores nucleares |
| Keyword: | Engineering, Control engineering, Energy engineering, Nuclear power plants, Robust control, Nuclear reactors |
| Full text: | Texto completo (Ver HTML) |
