Switching operation on-line early warning analysis method suitable for distributed molding system
A technology of switching operation and early warning analysis, which is applied in the electric power field, can solve the problems that there is no explanation of the cross-level and cross-county loop closure analysis methods between prefectures and counties, and achieve the effect of high accuracy and great practicability
Active Publication Date: 2015-03-25
NARI TECH CO LTD
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[0007] Chinese patent document CN101431255 discloses the "Power System Loop Closing Operation Risk Analysis Method" (application number 200810235196.7), which belongs to a power system loop closing operation risk analysis method. In addition, the Chinese patent document CN101860026A "Urban Distribution Network Electromagnetic Operational Analysis Method" (application number 201010194430.3), which discloses an analysis method for the operation of the electromagnetic closing loop of the urban distribution network. After analysis, these two methods are not suitable for inter-county inter-level and cross-county loop closing analysis methods. instruction of
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[0033] Online early warning analysis method for switching operation applicable to distributed modeling system:
[0034] (1) Based on the integrated system of prefectures and counties, a unified model of prefectures and counties is established through distributed maintenance
[0035] The structure of the wide-area remote interconnection system, the overall structure is to interconnect the backbone networks of the local dispatch and county dispatches through the dedicated communication channel network to form a wide-area distributed district-county integrated dispatch automation system. The same software platform is used for the local survey and the county survey to realize the complete sharing of software resources and meet the needs of various users such as deployment supervisors. With the functions of unified modeling and data sharing, each county survey can carry out the modeling of the factories and stations under its jurisdiction locally, and the data is uniformly stored i...
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The invention discloses a switching operation on-line early warning analysis method suitable for a distributed molding system. The method comprises model building of a regional and prefectural distributed modeling system, and a switching operation analysis method based on the model. The switching operation on-line early warning analysis method comprises the following steps of: (1) based on a regional and prefectural integrated system, building a regional and prefectural uniform model by distributed maintenance; (2) obtaining a real-time operation mode of a power grid, and measuring; (3) topologically searching a loop route; (4) performing phase detection in the loop; (5) calculating a impulse current; (6) analyzing the influence of the loop impulse current on protection. According to the switching operation on-line early warning analysis method, distributed maintenance uniform modeling of regional and prefectural dispatching can be realized, and cross-level and cross-county loop tidal current analysis of regional and prefectural levels also can be performed.
Description
technical field [0001] The invention belongs to the technical field of electric power, and more precisely, the invention relates to an online warning system for switching operation suitable for a distributed modeling system. Background technique [0002] With the development of the national economy, users have continuously improved the reliability of power supply, and the operation and management of the power grid have new goals, which require more reliability, rationality and efficiency. With the continuous development of the urban power distribution network structure, the direction of lines in the urban power distribution network and the distribution of power distribution facilities and users have obvious geographical characteristics. Due to the concentration of regions and power distribution facilities, urban power distribution networks and other features There are many crossovers. In order to improve the reliability of power supply, in addition to building reliable powe...
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IPC IPC(8): H02J13/00
CPCY04S10/40
Inventor 李雷罗玉春彭龙陈国华李云鹏岑新
Owner NARI TECH CO LTD