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Power grid state estimation and assessment method and system

A power grid state estimation and state estimation technology, applied in system integration technology, information technology support system, calculation, etc., can solve the problem that the algorithm cannot reflect the actual situation of the power grid state well

Active Publication Date: 2014-03-26
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

[0005] In order to solve the technical problem in the prior art that only focusing on the state estimation algorithm cannot better reflect the actual situation of the grid state, the present invention proposes a grid state estimation and evaluation method and system, which can better reflect the actual situation of the grid state

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  • Power grid state estimation and assessment method and system
  • Power grid state estimation and assessment method and system

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[0023] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] figure 1 is a flow chart of the grid state estimation and evaluation method in the embodiment of the present invention. Such as figure 1 As shown, the power grid state estimation and evaluation method in the embodiment of the present invention includes the following steps:

[0025] Step 101: Applying the IEC61970 standard and the SVG standard and technology to the maintenance-free process of the graph model used in the state estimation evaluation;

[0026] The IEC61970 standard is a series of international standards for the "Energy Management System Application Programming Interface (EMS-API)" formulated by the International Electrotechnical Commission, corresponding to the domestic power industry standard DL890. IEC61970 is mainly composed of two parts: Common Information Model (CIM for short) and Component Interface Specification (...

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Abstract

The invention discloses a power grid state estimation and assessment method and system. According to the power grid state estimation and assessment method, the IEC61970 standard, the SVG standard and the technology are applied to a chart-module maintenance-free process for state estimation and assessment, state estimation and pretreatment before assessment are carried out on SCADA data and reactive power optimization results, state estimation and assessment are carried out on the SCADA data and the reactive power optimization results in an AVC system, and state estimation and assessment results are displayed in a multi-dimensional and visual mode. By means of the technical scheme of the power grid state estimation and assessment method and system, the actual conditions of the state of a power grid can be better reflected.

Description

technical field [0001] The present invention relates to the technical field of grid evaluation, in particular to a grid state estimation and evaluation method and system. Background technique [0002] State estimation is also called filtering. It uses the redundancy of the real-time measurement system to improve data accuracy, automatically eliminates error information caused by random interference, and estimates or predicts the operating state of the system. Power system state estimation is the basis of power system dispatching, control, safety assessment, etc., and is also the core component of power management system. [0003] In recent years, power companies across the country have been committed to improving the practicality of EMS advanced application software, and the practicality of state estimation software is the focus. How to improve the calculation accuracy of state estimation and make it drive the practicality of the entire advanced application software, It is ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCY02E40/70Y04S10/50
Inventor 顾博川余南华孙建伟黄缙华唐升卫刘菲夏亚君刘俊勇沈晓东刘洋吕林魏震波黄媛李成鑫刘继春
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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