Numerical Study on the Economic Analysis of Thermal Power Units with Heat Storage
With the rapid development of new energy,due to its power generation is easily affected by environmental factors,the flexible transformation of thermal power is usually adopted to solve the problem.At present,thermal storage technology is widely used in the flexible transformation of thermal power plants,and there are cases of thermal storage technology applied in engineering at home and abroad.However,the economic analysis of thermal storage technology on the peak heating period of thermal power plants in winter by numerical simulation is less.Taking the operating conditions of a power plant in Xinjiang during the heating period in winter as an example,the heat storage and energy storage model of the unit was built and numerical calculation was carried out by using APROS software,so as to optimize the steam extraction volume and generation power of the unit under peak load regulation requirements.The volume of the heat storage tank is 15 000 m3,the heat storage time is 8 h during the off-peak period of electricity consumption,and the generating power of the unit is 205 MW.During peak hours,the heat release time is 3 h,and the generating power of the unit is 304 MW.According to the regional peak and valley electricity price calculation,the daily income of the unit is about 111,000 yuan.It provides a new idea and solution for the flexible transformation of thermal power plant,which can not only ensure the safety and economy of the unit,but also promote the peak regulation and stable operation of the power grid.
thermal power flexibility transformationheat storage technologynumerical simulationAPROS Software
NETL
NSTL
万方数据
