Monthly power generating plan optimization and safety checking method based on load characteristic periods

Abstract

The invention provides a monthly power generating plan optimization and safety checking method based on load characteristic periods. The method includes the steps of I collecting basic data, II extracting characteristic periods of a load curve, III modeling monthly set combination, IV modeling electric quantity safety checking, V solving the monthly set combination and the safety checking, and VI displaying and outputting the results. In order to solve the problem of high dimension and large scale optimization of monthly plan compiling, a period reduction method based on load curve characteristic extraction is provided. The calculating efficiency is improved under the prerequisite of ensuring calculating precision, and the transaction (plan) execution and safety constraint of a power grid are considered directly from electric quantity perspective, the trend of electric power and electric quantity conversion is not needed, and safety checking of electric power and electric quantity decoupling is realized. The assessment of transmitting demand and capability of a power transmission channel is realized, and integrated modeling and solving of monthly set combination and the electric power and electric quantity safety checking are realized.

Description

technical field [0001] The invention belongs to the technical field of power system economic operation dispatching, and specifically relates to a monthly power generation plan optimization and safety check method based on load characteristic periods. Background technique [0002] In recent years, with the large-scale access of new energy sources such as wind power and the advancement of smart grid dispatching, people have paid more and more attention to the safety of power grid operation. Optimizing the allocation of power grid resources and improving the level of refinement and intelligence of power grid dispatching will have a significant impact on the power grid. Scheduling operation and scheduling plan put forward higher requirements. The first problem to be solved in the dispatch plan is the unit combination. As a monthly unit combination for medium- and long-term resource optimization, it can take into account the operating benefits of the power grid in a longer time ...

AI Technical Summary

Problems solved by technology

With the increase of directly traded electricity, the unbalanced annual power generation of power generation companies will increase significantly, and the scale of power generation plans will be reduced in an orderly manner, which will increase the uncertainty of the grid operation mode, aggravate or form new grid security constraints, and affect power. Execution of the transaction contract

At present, the analysis of the power transmission capacity of the grid channel, as well as whether the start-up method and the arrangement of power generation and transmission meet the requirements of transaction execution and power grid security, that is, power verification, are not involved in the traditional monthly power generation plan.

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