A method of operating a steam power system

Abstract

The invention discloses a running operation method of a steam power system. The method comprises the following steps: acquiring performance characteristic parameters of each device in the steam power system and technological parameters of the steam power system; according to an energy and mass conservation equation of the steam power system, establishing a mixed integral linear programming model of the steam power system, and setting an optimized target function for the mixed integral linear programming model; regarding a production cost and an exhaust emission cost as targets, adopting an epsilon augmented constraint method to solve the optimized target function to obtain target optimized parameters; using the target optimized parameters as operating parameters of the steam power system to carry out operation control on the steam power system. According to the running operation method disclosed by the invention, the production cost and the exhaust emission cost are regarded as targets, the optimized target function is solved by the epsilon augmented constraint method, and an optimizing strategies meeting the two targets of the production cost and the emission cost can be obtained, so that the production cost of an enterprise can be ensured, meanwhile the method is suitable for the energy-saving environment-protecting requirement tendency, and can be used for scientifically adjusting the production and operation strategy.

Description

technical field [0001] The invention relates to the technical field of steam power systems, in particular to an operating method of a steam power system. Background technique [0002] Petrochemical enterprises are typical high-energy-consuming industries. How to reduce production costs and environmental costs by improving equipment and operating processes has always been a serious problem faced by the industry. In petrochemical enterprises, the steam power system is an important part of energy supply. It consumes fuel oil, fuel gas and fresh water to provide different grades of steam, power and even electric energy for the entire production process. [0003] The system parameter optimization of steam power system with fixed process structure mainly includes the optimization of the operating conditions of the existing system and the optimization of the design parameters and operating conditions of a certain structural scheme during the design of a new system or the transforma...

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Problems solved by technology

However, this extensive production control method does not take into account the resulting environmental costs, especially under the current background of increasingly prominent environmental problems, enterprises not only need to consider "energy saving" in production, but also overall consideration " emission reduction"

Zhang Jiandong et al. proposed an integrated optimal scheduling strategy for the gas and steam power system, but its heavy load realizes the scheduling balance of gas and steam in the whole plant, and fails to consider the impact of environmental factors on the actual production method

Dai Wenzhi and Luo Xianglong considered environmental factors in the steam dispatching, but the function of the steam turbine in their implementation cases is relatively single, and the consideration of environmental factors is limited to increasing the environmental cost in the objective function

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