An optimal decomposition method for the maintenance plan of hydrothermal power units considering clean energy consumption

Abstract

The invention discloses a method for optimizing and decomposing a maintenance plan for a hydro-thermal power unit considering clean energy consumption. The method includes the following steps: Step S1: gathering information reported by each unit; Step S2: adding information of each hydropower station to form constraints and determine goals function; step S3: form the MLP problem; step S4: decompose the algorithm to solve; step S5: transmit the solution result as an instruction to each unit. The maintenance optimization method proposed by the invention not only considers the economic index of the operation cost of the power generation enterprise, but also responds to the actual demand and policy requirements of clean energy consumption, and at the same time ensures the feasibility of the maintenance plan, and in the actual system The calculation can be completed at a faster speed.

Description

technical field [0001] The invention relates to the technical field of generator set maintenance, in particular to a method for optimizing and decomposing a maintenance plan for a hydrothermal power set considering clean energy consumption. Background technique [0002] With the increasingly serious problems of energy crisis and environmental pollution, hydropower and other clean energy power generation technologies have been vigorously developed. The use of clean energy power generation can significantly reduce the pollution caused by thermal power generation and improve the environment, which is in line with the trend of green development. my country is rich in hydropower resources. Taking Guizhou Province as an example, its installed hydropower capacity accounts for about 32% of the total installed capacity, and the hydropower resources contain a large number of cascade hydropower stations. However, with the development of clean energy, the contradiction between its unbal...

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Problems solved by technology

[0006] In the first category of design objectives, the equal reserve method and the equal risk degree method respectively arrange the maintenance plan based on the principle that the reserve capacity and the probability of insufficient power supply in each period of the cycle are as equal as possible, and the maintenance plan obtained can ensure the reliability of the system. reliability, but lack of consideration of economic indicators; in the second category of design objectives, the reliability of the system is guaranteed by the spinning reserve constraint, and the economics of the maintenance plan is reflected by considering the maintenance cost index, but in non- In the market environment, it is not reasonable to consider the maintenance cost, which is an indicator paid by power generation companies

[0007] At the same time, due to the consideration of calculation difficulty, in the existing optimization model of maintenance plan, there is a lack of direct consideration of the transmission capacity constraints of transmission lines. The results obtained are basically infeasible, and it is necessary to obtain feasible results through multiple corrections by adding constraints

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