Research on the Performance of Coal-fired Power System Integrated with Solar Energy

Integrating solar energy into conventional coal-fired power system provides a way to overcome the inherit shortcomings of solar energy, such as intermittent and instability. In this paper, a coupling analysis of the solar field, turbine and boiler is made and Matrix Thermal Balance Equations is introduced in the calculation of the system SAPG. For a system SAPG running in coal-saving mode with constant load, the result shows that the introduction of solar field into coal-fired unit leads to mass flow rate variation and temperature drop of superheat steam and reheat steam greatly. As a result, more consumption will be needed if too much power is provided by the solar field.