Comprehensive Optimization of Variable Load Capacity of Heating Unit under Complicated Working Conditions

Steam extraction will decrease variable load capacity of a heating unit which cannot meet the power grid requirements. So the unit needs to be modified to meet this requirement. But the existing optimization methods for every subsystems are isolated from each other, which is not aware of the relationship among them. With this problem, a comprehensive optimization method is proposed with different equipment or subsystem of unit. During the process, the implementation sequence of each step of the optimization method is adjusted according to the functional attributes, such as the sequence from the logical structure to the device characteristic curve and then the CCS (Coordinate Control System) parameters. The actual test proves that this technology can improve the variable load capacity effectively, and the subsequent technology promotion also shows its universality.