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Load aggregator reliability evaluation method considering demand response uncertainty

A load aggregator and uncertainty technology, applied in the field of smart grid, can solve problems that affect the safe and stable operation of the power system, and the power system cannot achieve real-time balance.

Inactive Publication Date: 2019-10-22
HEFEI UNIV OF TECH
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Problems solved by technology

In practice, user response behavior is affected by many factors, which is random and volatile, so that the load aggregator cannot respond reliably according to the scheduling plan, and then the power in the power system cannot be balanced in real time, affecting the security and stability of the power system running

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  • Load aggregator reliability evaluation method considering demand response uncertainty
  • Load aggregator reliability evaluation method considering demand response uncertainty
  • Load aggregator reliability evaluation method considering demand response uncertainty

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Embodiment Construction

[0092] see figure 1 , in this embodiment, a load aggregator reliability evaluation method that takes into account the uncertainty of demand response is to model and analyze the uncertainty of demand response, and to evaluate the reliability of the load aggregator The characteristics and risks are analyzed, which provides a more practical reference for the load aggregator to participate in the operation decision of demand response. Specifically, it is carried out according to the following steps:

[0093] Step 1. Establish demand response uncertainty model:

[0094] Step 1.1. Divide the time interval that the load aggregator requires users to respond to in a day into h time periods, and use formula (1) to calculate the economic incentive that the i-th user gets in the t-th time period as x it When , the predicted value of load reduction rate λ it (x it ):

[0095]

[0096] In formula (1): is the dead zone threshold of the i-type user in the t-th time period, that is, t...

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Abstract

The invention discloses a load aggregator reliability evaluation method considering demand response uncertainty. The method comprises the steps: 1, building a user demand response uncertainty model based on a consumer psychology principle through the analysis of the impact on a user response behavior from economic excitation; 2, formulating reliability and risk evaluation indexes of the load aggregator; 3, based on opportunity constraints and risk cost theories, constructing a scheduling model taking maximization of the net income of the load aggregator as a target; and 4, solving the scheduling model by using a genetic algorithm embedded with Monte Carlo simulation, and calculating the reliability and risk evaluation indexes of the load aggregator. According to the invention, the reliability and risk of the load aggregator scheduling scheme can be quantitatively analyzed, so that the load aggregator can select a proper scheduling scheme to reduce the risk of response when participating in a demand response project.

Description

technical field [0001] The invention relates to the field of smart grids, in particular to a method for evaluating the reliability of a load aggregator taking into account the uncertainty of demand response. Background technique [0002] With the deepening of smart grid construction, demand response technology, as one of the core technologies, has gradually become a research hotspot in the power industry. In the initial stage of demand response technology development, demand response projects were mainly designed and implemented for large-scale industrial users, resulting in a large number of undeveloped demand response resources in small and medium user groups. With the development of the economy and society and the prosperity of the electricity market, the proportion of electricity demand of small and medium-sized users is increasing day by day. Small and medium-sized user groups contain a large number of demand response resources, which are characterized by a small sched...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06G06N3/12
CPCG06N3/126G06Q10/06312G06Q10/06315G06Q10/0635G06Q50/06
Inventor 吴红斌卢俊花杨龙王鲸杰
Owner HEFEI UNIV OF TECH
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