Demand response modeling and reliability evaluation method for load aggregator

Abstract

The invention discloses a demand response modeling and reliability evaluation method for a load aggregator, and the method comprises the steps: firstly building a response uncertainty model of a userinterruptible load based on a fuzzy mathematic theory and consumer psychology; secondly, determining interruptible load parameters of resident users and demand response task parameters of a load aggregator; further, establishing a demand response decision model of the load aggregator based on a fuzzy opportunity constraint programming theory; and finally, defining a demand response reliability index of the load aggregator, and respectively solving corresponding evaluation results. According to the method, the load aggregator can be helped to make a reliable demand response decision under the condition of considering the demand side resource response uncertainty, and the demand response reliability level of the load aggregator is effectively quantified and evaluated, so that reference can be provided for research and development of domestic load aggregators.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a demand response modeling and reliability evaluation method of a load aggregator. technical background [0002] In recent years, the application of demand response technology has played a significant role in reducing the operating cost of the power system and improving the reliability of the power grid. As an important emerging subject of demand response, load aggregators provide opportunities for small and medium-sized users with different electricity consumption characteristics to participate in the regulation of the electricity market, and fully tap the dispatch potential of user-side resources. They are currently being gradually established and operated in domestic pilot cities. Due to the lack of relevant technology and experience of domestic load aggregators, various problems have hindered the development of load aggregators. In actual operation, there is always unc...

AI Technical Summary

Problems solved by technology

Due to the great uncertainty of demand-side resources in participating in demand response, this may lead to unreliable response decisions made by load aggregators when they complete certain power off-peak tasks. However, there is still a lack of research on load aggregators. Participate in the reliability assessment of demand response. Traditional distribution network reliability indicators are also difficult to reflect the reliability level of load aggregators participating in demand response.

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