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Air conditioning load aggregation method

A technology of air-conditioning load and aggregation method, which is applied in heating methods, space heating and ventilation, lighting and heating equipment, etc. It can solve problems such as complex calculations and achieve high aggregation accuracy and small amount of calculation.

Inactive Publication Date: 2012-10-10
HUNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the modeling of air-conditioning groups is mostly obtained from a macroscopic point of view through parameter identification, and the calculation is complicated

Method used

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Embodiment Construction

[0036] The air-conditioning load aggregation method of the present invention will be described below in conjunction with the accompanying drawings. It is explained from the electrical parameters of the model, input power, rated slip, initial slip, and rated inertial time constant.

[0037] 1) Equivalent electrical parameters of polymer air conditioner

[0038] figure 1 It is the conversion of the equivalent circuit of a single motor: convert the equivalent circuit diagram of the motor into a circuit diagram of three parallel branches, considering that when the motor is locked, the slip rate s=1, in this case, it can be obtained:

[0039] Z s = R s + j X s , Z m = R m + j X m ≈ ...

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Abstract

The invention relates to an air conditioning load aggregation method for an electric power system, and belongs to the field of loading modeling of electric power systems. The method adopts an induction motor first order mechanical transient model to describe the normal state of an air conditioner; aggregation for a plurality sets of air conditioners of different types is performed through modeling based on the steady state theory of the induction motor, so that the aggregation air conditioner model of equivalent parameters can be obtained; and the major parameters of the model include the electrical parameter, the input power, the initial slip, the rated slip and the inertia time constant. The model not only has higher aggregation accuracy, but also has low calculated amount, and can be used for transient stability analysis.

Description

technical field [0001] The invention relates to a power system air-conditioning load aggregation method, and belongs to the technical field of power system load modeling. Background technique [0002] The power load is an important part of the power system. The power load model has a certain influence on the power flow calculation, short-circuit calculation, stability and safety analysis in the power system. Load modeling has become a constraint on the accuracy and credibility of power system simulation calculation results. key factor. [0003] At present, the national economy is developing rapidly, and people's living standards have generally been greatly improved. Many changes have taken place in the load level and load structure of the urban network, especially the load of air conditioners has grown rapidly and will continue to grow. The working characteristics of the air-conditioning load have a crucial impact on the stability and security of the entire power grid, so t...

Claims

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Application Information

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IPC IPC(8): F24F11/00G06F19/00
Inventor 黄小庆张志丹曹一家戴丽丽许雅婧金欣龙
Owner HUNAN UNIV
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