Model And Control Of The Steam System For Tower Solar Thermal Plant

As the development of the low carbon economy, Clean energy development and utilization are highly valued by evoked decision makers, science and technology researchers, such as wind energy, nuclear energy and solar energy. Its development and utilization is the science and technology research field, engineering technology application domain of one of key topics. At present, the amount of solar energy used and developed in China is on the low side. Especially the solar thermal power generation is still locating at the first step and many technical problems needing perfection urgently. The solar thermal power generation technology is to take the heat of the sun and change it to the energy and then transform this energy into electric. In this paper the principle and the structure of the solar thermal power generation were introduced. Through studying on the mixing characteristics in the energy storage subsystem and solar thermal power plant system, analyzed this system has used the different working forms in different conditions and the problems in control system and put forward the multi-model control strategy. Multiple Internal Model Control is an effective approach to solve complicated problems such as nonlinear, uncertainties and operating points variations etc. Based on the in-depth study and analysis of the solar illumination insufficiency, tower solar thermal power generating system heat storage subsystem and light-storing collection hot subsystem coupling operation mode and gives simulation and modeling. On this basis, making a deep research on the thermal power stations operation characteristics at this operating modes and the coordination between each device characteristics. And we analyses the main steam temperature dynamic characteristics especially, according to multiple model internal model control strategy design corresponding controller of its control, which can satisfy the different operating requirements. The paper establishes a certain foundation to deepen the study in the control of the solar energy system and energy storage system coupling power generation system control research.