Double-layer air conditioning system demand side response mode based on load aggregator

Abstract

The invention relates to the technical field of power systems and automation thereof, and aims to provide a double-layer air conditioning system demand side response mode based on a load aggregator. Market objective functions of a distribution network operator, the load aggregator and a terminal user are positioned. On the upper layer, the distribution network operator and the load aggregator carry out effective interactive negotiation to determine the load shedding incentive price and the load shedding amount of each distribution network node; on the lower layer, the load aggregator and the terminal user achieve interactive negotiation to achieve distributed air conditioner cooperative control so as to meet the load shedding requirement of the load aggregator. A distribution network operator optimizes a fixed-point quantitative load reduction decision based on the real-time economic operation state of the distribution network, and accurately and effectively controls a large number ofscattered large-scale air conditioner load resources.

Description

technical field [0001] The invention belongs to the field of electric power system and automation thereof, and in particular relates to a demand-side response mode of a double-layer air-conditioning system based on a load aggregator. Background technique [0002] The improvement of user-side electrification level and the population agglomeration effect of big cities make the power consumption load in urban areas continue to rise, while the peak-to-valley difference further widens, and the local supply-demand contradiction gradually deepens. During the peak period of power load, there are serious problems such as small adjustment margin of distribution network operation mode, heavy load and overload of power transmission and transformation equipment, which bring great challenges to the economic operation of distribution network. The power demand of air conditioners keeps rising, accounting for about 20%-60% of the peak value in summer. With the development of communication te...

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Problems solved by technology

The load aggregator can negotiate with the end user and use a more efficient incentive model to achieve the user's demand side response. The existing research framework is difficult to couple and connect the distribution network operator, the load aggregator and the user terminal, and lacks a reasonable demand side. The responsive price mechanism promotes efficient interaction among market entities participating in demand-side projects. While ensuring the benefits of each market entity, the Distribution Network Operator (DNO) can optimize fixed-point and quantitative load reduction decisions based on the real-time economic operation status of the distribution network. And accurate and effective control of large-scale air-conditioning load resources with large numbers and scattered distribution

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