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Double-layer two-stage demand response scheduling method and system based on load integrator

A demand response, integrator technology, applied in information technology support systems, data processing applications, instruments, etc., can solve problems such as the inability to effectively improve the security and stability of the power system, inability to effectively guide demand response integrators, etc., to improve security and stability. Sexuality, revenue enhancement, and motivational effects

Inactive Publication Date: 2020-04-17
广东电力交易中心有限责任公司
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing technology cannot effectively guide demand response integrators to participate in the power market, obtain the maximum benefit, and cannot effectively improve the safety and stability of the power system, the embodiment of the present invention provides a two-layer two-stage demand response for load integrators Scheduling method and system

Method used

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  • Double-layer two-stage demand response scheduling method and system based on load integrator
  • Double-layer two-stage demand response scheduling method and system based on load integrator
  • Double-layer two-stage demand response scheduling method and system based on load integrator

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Embodiment

[0026] refer to image 3 As shown, the load integrator-based two-tier two-stage demand response scheduling method provided in this embodiment includes:

[0027] Obtain data information; specifically, obtain load electricity (that is, purchase load data), day-ahead market electricity price, real-time market electricity price and call reserve electricity price through historical data prediction. Get the upper and lower bounds for quotes set by the distribution system operator. Through the contract negotiated and signed between the load integrator and the user, the price of the load integrator's purchase of demand response, the total quantity, and the proportion of elastic load and inelastic load in the load are obtained. Considering the error of load forecasting, the elastic limit of real-time elastic load consumption (the proportional relationship with the purchase of elastic load power in the past) is analyzed through historical data.

[0028] Construct a two-layer optimizat...

Embodiment 2

[0066] refer to Figure 4 As shown, the load integrator-based two-tier two-stage demand response scheduling system provided in this embodiment includes:

[0067] The first data acquirer 41 is used to acquire data information; specifically, the data information includes the day-ahead market electricity price, real-time market electricity price, load electricity, reserve electricity price, load aggregator quotation, load aggregator purchase demand response price and total quantity , the ratio of the elastic load to the inelastic load in the load and the elastic limit of the elastic load; wherein, the load power is obtained by forecasting through historical data. Of course, it should be noted that, due to the large amount of data information to be acquired, the first data acquirer is only a general term, and it may be provided with multiple or multiple different types of data readers.

[0068] The first data processor 42 is used to receive the data information obtained by the da...

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Abstract

The invention provides a double-layer two-stage demand response scheduling method and system based on a load integrator. The first stage is a demand response bidding stage; the upper layer takes profit maximization of a power distribution network operator as a target, the lower layer takes profit maximization of a load integrator as a target, a lower layer model is converted into dual constraintsand strong dual equations through a primal-dual theory, double-layer optimization is converted into single-layer optimization, and a bidding strategy (quotation and quantity of demand response) of theload integrator is obtained through solving. In the second stage, after the load integrator determines the amount of demand response per hour, a strategy scheduled by the load integrator is determined by taking user cost participation minimization as a target and taking physical characteristics of the load as constraints. By establishing the double-layer two-stage demand response model, the bidding and scheduling strategy of the load integrator can be accurately obtained, so that the income of the demand response integrator participating in the power market is effectively improved, the enthusiasm of the demand response integrator participating in the power market is improved, and the safety and stability of the power system can be effectively improved.

Description

technical field [0001] The present invention relates to demand response technology, in particular to a load integrator-based two-layer two-stage demand response scheduling method and system. Background technique [0002] With the development of smart metering technology, two-way communication between the power grid and end users is possible. In the context of an increasingly open electricity market, the economic dispatch of the power grid should not only consider the power generation side, but also the load side. Due to the large number of end users, all users communicating directly with the grid will increase the burden of grid deployment. Therefore, as an intermediary between the system and users, load integrators can reduce the access standards for users to participate in demand response and increase the number of participants. Therefore, the study of demand response strategies involving load integrators plays an important role in increasing the number of users participat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06G06F30/20G06F111/06
CPCG06Q10/04G06Q10/06315G06Q50/06Y04S50/16
Inventor 王浩浩王一朱涛杨骏伟黄远明卢恩段秦刚吴明兴别佩陈青
Owner 广东电力交易中心有限责任公司
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