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A Substation Operating State Analysis Method Combining Whole Network and Partial Model

A technology of local model and analysis method, applied in the intersection of UHV transmission and power system simulation, can solve the problem of non-adjacent substation analysis method, and achieve the effect of accurate analysis of equipment safety

Active Publication Date: 2017-02-01
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, there is currently no method for analyzing the operating status of specific equipment in adjacent substations after UHV capacity expansion

Method used

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  • A Substation Operating State Analysis Method Combining Whole Network and Partial Model
  • A Substation Operating State Analysis Method Combining Whole Network and Partial Model
  • A Substation Operating State Analysis Method Combining Whole Network and Partial Model

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Embodiment Construction

[0014] The preferred embodiments will be described in detail below with reference to the accompanying drawings. It should be emphasized that the following description is exemplary only, and is not intended to limit the scope of the invention and its application.

[0015] The specific implementation steps are as follows: The first step: figure 1 As shown in the figure, the present invention proposes a method for analyzing the operation state of adjacent substation equipment after UHV capacity expansion by combining the whole network and local models. The power flow calculation is performed on the provincial network where the UHV line is located, and the power flow calculation adopts the national standard CIM / E Format grid model, and equivalence the model to form an island separately from the provincial grid where the UHV line is located, and then perform the power flow calculation of the island to obtain the node voltage and line transmission power data; At the beginning of th...

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Abstract

The disclosure relates to the crossing field between a power transmission of an ultra-high-voltage and a power system simulation, specifically a method for analyzing an operation state of a substation by combining a whole grid model with a local grid model is provided according to the disclosure. The method includes following steps: performing a load flow calculation for the provincial grid to which a ultra-high-voltage line belongs, wherein initial data of the load flow calculation employs a grid model with E format for national power grid dispatching control center; making an equivalent transform for the model, forming an island independently from the provincial grid to which a ultra-high-voltage line belongs, and making a load flow calculation for the island to acquire data of node voltages and line transmission power.

Description

technical field [0001] The invention belongs to the cross field of ultra-high voltage transmission and power system simulation, and in particular relates to a simulation analysis method for the operation state of adjacent substation equipment after UHV capacity expansion by combining a whole network model and a local model; in particular, a whole network and a local model Combined substation operating state analysis method. Background technique [0002] At present, the first UHV AC line in China has been put into operation, and the research on the impact of UHV environment on primary and secondary equipment has started. The substation adjacent to the UHV substation, as the power supply point of the UHV power transmission, plays a decisive role in ensuring the power transmission capacity of the UHV substation. It can be said that the stable operation of the adjacent substation is the premise of the UHV reliable power supply. [0003] After the UHV capacity increase, with the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/52G06F30/20G06F30/367G06F2119/06Y02E60/00Y04S40/20G01R31/40G01R31/58G01R31/62
Inventor 董雷李烨田爱忠沈晓丽柳鹏王婵琼
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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