A Method for Optimizing Monthly Generator Overhaul Plan Based on Two-Level Planning

Abstract

The invention discloses a method for optimizing a monthly generating set maintenance plan based on two-level planning, which includes the following steps: (1) performing statistics on basic data; (2) performing first-level planning, that is, optimizing the maintenance of the generating set considering the balance of power and electricity (3) Carry out second-level planning, that is, consider the safety check of power transmission and transformation equipment maintenance requirements; (4) determine the passing situation of safety check; (5) increase the maintenance constraints of generating sets; Small size, low difficulty in development, strong practicability of the calculation method, and accurate calculation results. Compared with other methods, the method of the present invention has two significant advantages: 1) it comprehensively considers the maintenance planning requirements of power transmission and transformation equipment and the power balance requirements, and meets the actual operation needs; 2) based on the two-layer model, the original problem is solved Coupling into two sub-problems reduces the difficulty of solving the model and ensures the solvability of the model.

Description

technical field [0001] The invention relates to the technical field of electric power dispatching optimization, in particular to a method for optimizing a monthly generating set maintenance plan based on two-level planning. Background technique [0002] The monthly maintenance plan of generating units is an important business in the arrangement of power system dispatching and operation mode. It is required to reasonably arrange the outage plan of generating units according to the grid load forecast and the maintenance plan of power transmission and transformation equipment before monthly execution. [0003] The preparation of the monthly power generation plan maintenance plan needs to meet two requirements: 1) to meet the requirements of power balance, and the generating units in the operating state must meet the relevant requirements of operation and backup on the basis of load forecasting; 2) to meet the grid section control requirements, considering the power transmission ...

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Problems solved by technology

[0004] There are mainly three modes for the application of similar technologies: 1) Only consider the power balance requirements. In actual operation, when the cross-section control requirements are difficult to meet, temporarily adjust the start-up mode of the unit to meet the cross-section control requirements. This method has power supply security. Hidden dangers, which are less and less used in practice; 2) Mainly considering the requirements of power grid section control, the operating reserve margin is increased to meet the requirements of power balance and section control at the same time. Insufficient, the operating efficiency of the generator set is reduced; 3) Considering the maintenance plan of power transmission and transformation equipment and the requirements of power balance at the same time, comprehensive optimization solution, the data model established by the above model is too complicated, and there is currently no practical solution method

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