Electric power system electric energy-standby optimization scheduling method considering partition standby and N-1 verification

Abstract

The present invention discloses an electric power system electric energy-standby optimization scheduling method considering partition standby and N-1 verification. Therefore, a combined optimization model having maximum electric energy and standby cost and considering the partition standby is established. An initial preconceive accident N-1 safety constraint is added into the optimization model, an initial scheduling scheme is obtained through solution, the transmission lines in each partition is subjected to N-1 verification, if the verification passes, the scheme is the optimization scheduling scheme of the next time, if the verification does not pass, the corresponding N-1 verification format is added into the optimization scheduling model to solve and obtain a new scheduling scheme, and the verification mentioned above is repeatedly performed until all the transmission lines pass the N-1 verification so as to obtain the final optimization scheduling scheme. The electric power system electric energy-standby optimization scheduling method considering the partition standby and the N-1 verification is helpful for ensuring the safety of the electric power and the validity of the standby so as to realize the resource optimization configuration.

Description

technical field [0001] The invention relates to a power system optimal dispatching method under the electric power market, in particular to a power system electric energy-reserve joint optimal dispatching method considering partition backup and N-1 verification under the electric power market. Background technique [0002] Power generation planning refers to planning in advance according to the load forecast, on the premise of satisfying the power balance, combined with constraints such as the upper and lower limits of the output of each unit, the maximum climbing power of each unit, and considering the actual conditions such as the start and stop of each unit and the minimum downtime. It is an important task for the dispatching department of the power system to formulate the generation power of each unit. While making a power generation plan, it is necessary to set a certain reserve capacity to deal with various uncertain factors, such as load fluctuations, forced outage of...

AI Technical Summary

Problems solved by technology

However, in the actual power grid, due to the uneven distribution of power generation resources and the large gap in power generation costs, the reserve capacity may be concentrated in a certain area

Considering the limit of line transmission capacity and network congestion, there may be a phenomenon that the reserve capacity cannot be called after the accident, which seriously affects the safety and reliability of power grid operation

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