With the structural upgrading of China's energy industry and the transformation of economic growth mode

clean energy power generation technology has been continuously and rapidly developed. As a high-power electric heating conversion device

electric boiler has become one of the effective technical solutions to enhance the operational flexibility of thermal power units and promote the reliable consumption of new energy power. In this paper

the allocation and accounting principles of electric boiler capacity and heat storage capacity in such projects are proposed. The calculation model of system optimization operation parameters and operation economy evaluation is established based on the principle of maximizing the economic benefits of enterprises

taking into account the factors of grid peak shaving depth dispatching limits. Combined with the actual situation of the multi-unit system of a thermal power plant in Northeast China

the optimal configuration capacity of the electric boiler of the project is 300 MW

and the heat storage capacity is 17 MW·h. At the same time

the optimal operation scheme of the whole plant is proposed. The results show that

under the condition of 30% peak shaving depth limit

the case power plant can add about 139.53 million Yuan in each heating season

and the project investment payback period is about 5 years. In the foreseeable future

the project will have long-term profitability.