Analysis Model and Evaluation System of Boiler Load Deviation in Coal-Fired Units
Our country's installed and grid-connected capacity of new energy has been devel-oped rapidly under the background of"carbon peaking and carbon neutrality".In order to in-crease the grid's consumption of new energy power,coal-fired units have frequently partici-pated in deep peak regulation,resulting in a large deviation between the actual load of the u-nit and the AGC command load.Aiming at addressing this technical conundrum,this paper takes the boiler and its auxiliary equipment as the object,studies and constructs its actual output model,expected output model and maximum output model.On this basis,boiler's load deviation analysis and evaluation system is established,which provides early warning and cause diagnosis to load deviation,and this system was applied to a power plant for verifica-tion.The results show that the system can effectively provide early warning and diagnosis of output faults in boilers and their auxiliary equipment,and it effectively guarantees the relia-ble,safe and economical operation.
coal-fired unitboilerload deviationsystem development