Macrozone load modeling method in intelligent power system

A load modeling and smart grid technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of insufficient data sources, inability to install load identification devices in substations, and no long-term mechanism, and achieve good dynamic, The effect of wide coverage and accurate electricity consumption

Inactive Publication Date: 2013-01-09
NR ELECTRIC CO LTD +1
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  • Abstract
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Problems solved by technology

[0016] 1. Considering the cost, it is impossible to install load identification device

Method used

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  • Macrozone load modeling method in intelligent power system
  • Macrozone load modeling method in intelligent power system
  • Macrozone load modeling method in intelligent power system

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Experimental program
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Embodiment Construction

[0037] The smart grid wide-area load modeling method is to establish a hierarchical and hierarchical wide-area load modeling system structure for the smart meters installed in the home according to the voltage level, and use the automatic meter reading system to integrate the power information measured by the smart meter and the identified load Relevant information is collected hierarchically and concentrated, and mature load modeling algorithms are used to process the collected load to establish an accurate load model.

[0038] 1. System architecture of wide-area load modeling

[0039] There are various loads in the power system, which can be divided into industrial loads, urban civil loads, commercial loads, agricultural loads and other loads. The use of smart meters for modeling needs to be based on the principles of load division and classification, and targeted Gradually develop according to voltage level.

[0040] 2. Strategies for wide-area load modeling

[0041] Among the mod...

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Abstract

The invention discloses a macrozone load modeling method in an intelligent power system, which comprises the following steps: establishing a macrozone load modeling system architecture with layers and grades for intelligent electricity meters installed at homes according to voltage grades; collecting and concentrating power information measured by the intelligent electricity meters and identified relevant load information in layers through an automatic message recording system; processing collected load through load modeling algorithm and establishing an accurate load model; establishing a macrozone load modeling system by voltage grades and the intelligent electricity meters installed at homes; collecting relevant information such as power of the electricity meters or load identification results and the like through the automatic message recording system; and comprehensively utilizing the existed load modeling algorithm to process the information. According to the macrozone load modeling method, the macrozone load modeling for the power system can be realized, and long-acting mechanism and widest coverage area for the load modeling can be realized based on the intelligent electricity meters.

Description

Technical field [0001] The invention belongs to the technical field of power systems and their automation, and relates to a method for power system load modeling. Background technique [0002] Power load modeling is a very important but also very difficult task. It is a problem that has not been solved after long-term research. The accuracy of the load model has a very important impact on the design, analysis and calculation of the power system, especially for the power system. The results of system safety and stability analysis have a direct impact. my country has incorporated load modeling into the research scope of major projects of the National Natural Science Foundation of China, and various research institutes, universities and power grid companies have also actively carried out related research work. After the August 14 power outage in the United States in 2003, the joint investigation team pointed out in its final report that the load model used in the past was inappropr...

Claims

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Application Information

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IPC IPC(8): H02J3/00G06F17/50
CPCY02E60/76Y04S40/22Y02E60/00
Inventor 王亮李力侯学勇吕航文继锋陈松林
Owner NR ELECTRIC CO LTD
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