Real-time parameter identification method for the second-order equivalent thermal parameter model of the building to which the air conditioner belongs

Abstract

The invention discloses a real time parameter identification method of an air-conditioning belonged building second order equivalent thermal parameter model, and a real time built air-conditioning belonged building second order equivalent thermal parameter model, which are used to build and real time control an air-conditioning load equivalent polymerization model; a second order differential equation group of the air-conditioning load belonged building is built and the input & output quantity and the parameter needs to be identified are determined; the real time data acquisition of the input & output quantity is conducted through a high-grade metering terminal of an intelligent power grid; data transmission to a load aggregator is conducted; and the real time parameter identification is conducted through the cooperation particle swarm algorithm by the load aggregator. According to the invention, research insufficient in domestic air-conditioning load real time modeling is made up; an accurate air-conditioning load model is constructed; and technical support for demand response is provided.

Description

technical field [0001] The invention belongs to the parameter identification technology of the dispatching part of the power system, in particular to the real-time parameter identification of the second-order equivalent thermal parameter model of the building to which the air conditioner belongs by a load aggregator. Background technique [0002] The advanced metering system of the smart grid provides technical support for the real-time data collection of relevant departments. The load aggregator can not only identify real-time parameters through the smart grid, but also establish an online aggregation model and control the air conditioners in real time. Relying on the hardware support of smart grid and related online identification technology, the online identification of air-conditioning load of load aggregator plays a vital role in the participation of air-conditioning load in demand response. [0003] Air-conditioning load is an important demand response resource. The eq...

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Problems solved by technology

[0003] Air-conditioning load is an important demand response resource. The equivalent thermal parameter model of the building to which it belongs has been widely used in various fields of air-conditioning load control. Factors such as area and volume are closely related and cannot be obtained by measurement. Therefore, it is necessary to identify the parameters of the air-conditioning load model through a certain parameter identification method. However, my country started relatively late in the participation of air-conditioning in demand response, and there is no relevant information about it. Parameter Identification Technology of Air Conditioning Load Model

At the same time, for the purpose of simplifying calculations, many literatures and actual engineering projects use a simplified first-order equivalent thermal parameter model, which has poor accuracy. identification to achieve precise control of air-conditioning loads

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