Through analysis of affecting factors for the target value of boiler operation optimization

it has been pointed out that the target value of operation optimization can be classified into two kinds

namely direct operation parameters and indirect performance parameters. The calculation method of target value for indirect performance parameters has been put forward

and through practical application of the operation optimization management system for 600 MW unit in one power plant

the calculation method of consumption difference between two kinds of parameters

i.e. direct operation parameters and indirect performance parameters

having been given. Results of application show that the influence of two kind parameters upon the coal consumption is identical

it can be used for supervisory and diagnosis of the boiler performance.