Improved Balance of Plant Simulation with ROSE?

摘要

Many nuclear power plant simulators were rehosted to more modern and. faster computer platforms. The extra computer power was used to improve the simulator fidelity by upgrading the reactor core and reactor coolant models. The current situation in the electricity sector demands for an increase in megawatt generation from existing power stations. In order to achieve this safely, nuclear power plants will need to update their simulators to reflect changes made in the plants to produce more power. The lack of fidelity and the complexity of the actual secondary models in older generation simulators will make this task very difficult and time consuming. Upgrading of the Balance of Plant (BOP) systems models becomes an interesting alternative as it provides the simulator with models that are easier to maintain as well as improving the simulator fidelity for operator training. For over a decade, CAE has been using ROSE? to simulate BOP systems on many new, full scope simulators, as well as upgrades of existing power plant simulators. ROSE? is a graphic simulation environment used to create schematics that mimic the plant P&ID's, using objects from ROSE? simulation libraries. The ROSE? hydraulic libraries (HYD and BOP) include all necessary simulation objects to model steam turbines, feedwater heaters, moisture separator reheaters (MSRs), main condensers and other equipment found in the power plant steam/water cycle. All models are based on first principle equations and two-phase non-equilibrium is considered in models for feedwater heaters and condensers. CAE has also used the ROSE?-based ANTHEM2000~(TM) advanced thermal hydraulic model to simulate other critical hydraulic systems, like CVCS and CCW, as test cases to provide an additional level of fidelity for simulators that are used for accident scenario analysis. This paper will describe CAE's implementation of ROSE? to simulate BOP systems.