Annual power generation plan rolled decomposition optimization method taking balance between plan finishing rate and load rate into consideration

Abstract

The invention discloses an annual power generation plan rolled decomposition optimization method taking balance between plan finishing rate and load rate into consideration; the method comprises the following steps: (1) determining a plan period and a plan parameter requiring the annual power generation plan rolled decomposition optimization; (2) establishing a security constraint machine set combined optimization model applicable to the annual power generation plan rolled decomposition; (3) using a mixed integer linear planning algorithm to calculate start and stop states, the plan load rate and the peak and valley active outputs of the machine set at each plan period; (4) implementing the security check, judging if all security constraints are satisfied; if all the security constraints are satisfied, going to step (5); if not all the security constraints are satisfied, adding a new out-of-limit element, and calculating sensitivity information of the newly added out-of-limit element, going to step (2). The disclosed method circularly optimizes and drafts the machine set start and stop plan as well as the machine set average plan load rate, drafts monthly, weekly and daily power generation amount plans of the power plant; the disclosed method ensures the execution of the annual power generation amount plant, and achieves the purpose of saving energy and reducing emission.

Description

technical field [0001] The invention relates to a rolling decomposition optimization method for an annual power generation plan considering the balance of plan completion rate and load rate, and belongs to the technical field of electric power system scheduling automation. Background technique [0002] With the advancement of smart grid construction, the requirements for optimal allocation of power grid resources are constantly increasing, which puts forward higher requirements for dispatching operations and dispatching plans. At present, the preparation of the power generation plan of the provincial power grid of the domestic grid is first formulated and determined by the competent government department based on the next year's economic growth expectations and the balance of power and electricity, comprehensively considering the national energy conservation and emission reduction, resource optimization allocation and other conditions and unit operation and other conditions t...

AI Technical Summary

Problems solved by technology

[0003] At present, when domestic power dispatching agencies formulate annual, monthly, and weekly operation methods, they are generally based on the completion of annual power generation. Based on operating experience, they manually compile the operation mode and power generation decomposition plan of generating units. It is difficult to guarantee the completion of the annual power generation plan of each generating unit. The consistency of the schedule cannot fully reflect the impact of the follow-up unit maintenance plan, winter heating and seasonal output fluctuations of new energy on the implementation of the annual power generation plan in practical applications.

At the same time, empirical scheduling cannot effectively consider the safety of the power grid, and the obtained unit operation plan needs to be adjusted repeatedly during operation, which makes it difficult to ensure the safety and economy of dispatching operation, and also brings a huge workload to operators

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