Simulation data accessing method based on power grid CIM (Common Information Model) interface

A technology for simulating data and power grid models, which is applied in electrical digital data processing, data processing applications, special data processing applications, etc., can solve problems such as inconsistencies in network models, cost a lot of manpower, affect calculation accuracy, etc., and achieve simple access implementation methods , reduced maintenance workload, and improved computing efficiency

Active Publication Date: 2011-09-14
CHINA ELECTRIC POWER RES INST +1
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AI Technical Summary

Problems solved by technology

The EMS system focuses on the analysis and calculation of real-time power grid model parameters and real-time telemetry data collected by secondary equipment during on-site real-time operation. Due to the inconsistency with the model of the all-digital real-time simulation system during the simulation operation in the laboratory, especially the power grid boundary The processing of the model and the modeling of the DC system are inconsistent in the two systems, which makes the EMS system spend a lot of manpower when using the simulated data provided by it for calculation, and the calculation accuracy is not high
[0004] In the past, the database used by the all-digital real-time simulation system of the power system was inconsistent with the

Method used

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  • Simulation data accessing method based on power grid CIM (Common Information Model) interface
  • Simulation data accessing method based on power grid CIM (Common Information Model) interface
  • Simulation data accessing method based on power grid CIM (Common Information Model) interface

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[0050] When the EMS system accesses the simulation data of the simulation system, the interface method used is data mapping. The name mapping table is used to force the two sets of data sources to be associated together. If the two sets of data sources are inconsistent or the names change, it may cause mapping errors. ; And if one set of data is modified, the other set of data must be modified in the same way to ensure the success of the mapping, doubling the data maintenance workload.

[0051] Now using the calculation database of the EMS system as the data source, the state estimation function in the EMS system not only forms the network topology structure for online operation, but also can identify the bad data in the real-time data and filter out the power grid model of the EMS system. And the identified remote signaling and telemetry information-equipment relationship table is output as a CIM format file. The power system all-digital real-time simulation system reads the CIM ...

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Abstract

The invention provides a power grid CIM (Common Information Model)-based method for accessing real-time data state estimated result of an EMS (Energy Management System) into an interface of a full-digital real-time simulation system. The method comprises the steps of: outputting a power grid model of the EMS and a telemetry information-equipment relation table into a format data file according to a CIM derivation standard, reading the CIM file in by a full-digital real-time simulation system of a power system through a data interface to form a computation database, and directly transmitting the power system simulation data based on the database back to the EMS for detection. The power grid CIM-based method has the advantages of multi-system joint debugging, high data precision and fast transmission speed, provides reliable data basis and unified network model for online safety analysis and prewarning control of a large power grid for the first time, and breaks through the bottleneck that calculation results cannot be compared because the offline calculation and a calculation module are inconsistent; and tests prove that a measurement model which is used for the full-digital real-time simulation system of the power system and constructed on the basis of the CIM derivation standard of the EMS is correct and consistent.

Description

technical field [0001] The invention belongs to the field of power systems, and relates to a simulation data access method based on a CIM grid model interface. Background technique [0002] The safe and stable economic operation and early warning control of large power grids are major issues in the field of power system computing. my country has formed the world's highest voltage level and largest interconnected power grid. In order to carry out analysis and research on power system security and stability, it is necessary to simulate large interconnected power grids Various faults and transient processes. In the past, a digital-analog hybrid real-time simulation system was used for simulation, but due to investment and site constraints, it was impossible to simulate a super-large-scale power system. However, the power system all-digital real-time simulation system derived the public information model CIM of the power grid through the measurement and state estimation results o...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06Q50/00
Inventor 郎燕生王磊邢颖
Owner CHINA ELECTRIC POWER RES INST
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