Method used for generating CIM model describing power grid change in designated time slot and system thereof

Abstract

The invention relates to a method used for generating CIM model describing power grid model change in designated time slot. The invention belongs to the power system technical field. The method includes the following steps: an initial CIM model is imported, and a hierarchical relationship structure library and a topology connection relationship structure library are established in a buffer area; change conditions of power grid model objects (container object, equipment object and topology connection point object) in designated time slot are input; all the record sorts in an object information list are subject to addition and deletion and sequencing is carried out, thus forming an addition deletion object index table; the power grid model objects (the container object, equipment object and topology connection point object) in the buffer area are sequentially updated according to the addition deletion object index table; and a CIM model XML file describing power grid model change in the designated time slot is generated by the CIM XML grammatical rule according to the hierarchical relationship structure library and topology connection relationship structure library which have time property in the buffer area.

Description

technical field [0001] The invention belongs to the technical field of electric power, and more precisely, the invention relates to a representation method of a power network model. Background technique [0002] Generally speaking, the power dispatching centers at all levels have established the power system model of the power grid in their respective EMS systems for the power grids in their jurisdictions. Based on this model, they perform power system simulation calculations and analysis. The model is the model of the power grid in a certain state (such as real-time state, research state), and the derived model description CIM XML file can only describe the state of the power grid at a certain moment, but cannot describe the development and changes of the power grid in a certain period of time. [0003] The IEC61970 series of standards formulated by the International Electrotechnical Commission regulates the power system public information model CIM and application program ...

AI Technical Summary

Problems solved by technology

At present, CIM has become a general model for describing the power system, and it plays a key role in exchanging model information between different control areas of the power system. The description of the changes in the power grid model within a time period will lead to too frequent exchange of CIM model files in the control interval, that is, every time the power grid model changes, even if the commissioning and withdrawal of individual equipment completely according to the plan, the CIM model needs to be carried out The exchange of files, on the other hand, because only the state of the latest model is kept in the control area, and there is no record of the development and changes of the power grid for a period of time

[0004] At the same time, the commissioning and withdrawing of power system equipment are planned, that is to say, how the power grid will develop and change in the future has been roughly known for a long time, but the CIM model used in the current power system cannot It is nothing more than to express the development and changes of the power grid during this period of time.

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