Transient Simulation and Control Strategy of Supercritical CO2 Solar Thermal Power Generation System
Abstract
In order to solve the basic problem of the supercritical carbon dioxide (S-CO2) Brayton cycle integrated with solar power tower (SPT) station which used solid particle solar receiver (SPSR), a new extremum-seeking control method was applied by manipulating the particle and S-CO2 mass inventory in the integrated system. By designing different system operation modes and corresponding control logic, then using this control method to carry on the dynamic simulation. The results show that power generation in summer and winter solstice by extremum-seeking control is improved by 2.1% and 1.6%, respectively. The results could be references for control strategies as well as the safe operation of the system. Key words: Supercritical carbon dioxide; Concentrated solar power; Simulation; Control.