In view of the heat compensation equipment widely used in combined heat and power(CHP)plant

the feasible operation region model and coal-saving rate model of the CHP plant equipped with a solid heat storage electric boiler are constructed. The effects of the solid heat storage electric boiler

the electrode electric boiler and the water storage heat accumulator on the heat-supply capacity

regulation ability and operation cost of the CHP plant are compared and analyzed. Based on the current status of a CHP plant

a general model for combined dispatching of the CHP plant with flexibility to configure heat compensation equipment is established. Combining with the actual operation data of the CHP plant

the above models are verified and the differences in operation flexibility

scene adaptability

coal-saving effect and operation cost among different heat compensation equipment are quantitatively analyzed. The results show that under the same heating capacity

the solid heat storage electric boiler has the strongest flexibility and the lowest coal saving rate. The heat accumulator has the best coal-saving effect

but the scene adaptability is lower than other heat compensation schemes. The model and research results can provide theoretical tools and reference for the optimal operation of CHP plants.