Safety checking method for power system

Abstract

The invention provides a safety checking method for a power system. The method comprises the following steps of: S1, determining a further equivalence date as required, and forming interface power flow of the equivalence date on a network scheduling side; S2, performing network equivalence calculation on the section of the equivalence date according to the interface power flow; S3, deriving the result of the network equivalence calculation on the section of the equivalence date to generate an equivalence file, and transmitting the equivalence file to provincial scheduling; S4, obtaining the equivalence file on a provincial scheduling side, resolving the equivalence file, storing resolved data into a defined outer net equivalence data structure to obtain an outer net equivalence model of the provincial scheduling, and splicing a provincial scheduling model with the outer net equivalence model of the provincial scheduling to generate a power flow section provided with the outer net equivalence model; and S5, performing safety checking calculation on the power flow section provided with the outer net equivalence model generated in the S4. Safety checking is performed in comparison to a use history and the current outer net equivalence model, so that the accuracy of an obtained result is increased greatly.

Description

technical field [0001] The invention relates to the field of power system calculation, in particular to a method for checking the safety of a power system. Background technique [0002] The power system is gradually transforming into the power market. Correspondingly, the concept of safety and economy in the power system is also undergoing profound changes. Under the conditions of the power market, it is likely to focus on the economy and limit the operation of the system The most economical state is often a safety factor. Therefore, under the conditions of the electricity market, in order to truly realize the economic operation of the system, the safety performance of the system must be inspected and evaluated more carefully and comprehensively than in the past. For example, in the traditional power generation plan, the system operation mode and unit output are relatively stable. Since there is no stimulus from economic factors, dispatchers often do not make major adjustme...

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Problems solved by technology

However, this method has the disadvantages of large data communication volume, poor data confidentiality,

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