Power system scheduling method and device considering wind power probability distribution uncertainty

A power system scheduling and probability distribution technology, applied in circuit devices, wind power generation, information technology support systems, etc., can solve problems such as lack of wind power scheduling decision-making information, complex optimization model solutions, and inability to achieve automatic optimization, so as to increase large-scale systems. Application potential, improved conservatism, guaranteed effectiveness

Active Publication Date: 2021-07-30
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fuzzy set based on moment information only uses the moment information in the uncertain historical data, which often leads to certain conservatism, while the fuzzy set based on distribution distance usually makes the conversion and solution of the optimization model complicated, and its solution efficiency needs to be improved
At the same time, the application of distributed robust optimization methods

Method used

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  • Power system scheduling method and device considering wind power probability distribution uncertainty
  • Power system scheduling method and device considering wind power probability distribution uncertainty
  • Power system scheduling method and device considering wind power probability distribution uncertainty

Examples

Experimental program
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Effect test

Embodiment 1

[0039] This embodiment provides a power system scheduling method that takes into account the uncertainty of wind power probability distribution;

[0040] Such as figure 1 As shown, the power system dispatching method considering the uncertainty of wind power probability distribution includes:

[0041] S101: Construct an uncertain set of wind power probability distribution;

[0042] S102: Based on the uncertain set of wind power probability distribution, define the operation risk cost;

[0043] S103: Based on the operation dispatch cost and operation risk cost of the power system, with the goal of pursuing the lowest total operation cost of the power system, construct a robust economic dispatch model that takes into account the uncertainty of wind power probability distribution;

[0044] S104: Determine the optimization constraints of the robust economic dispatch model;

[0045] S105: Solve the robust economic dispatch model considering the uncertainty of wind power probabilit...

Embodiment 2

[0193] This embodiment provides a power system scheduling device that takes into account the uncertainty of wind power probability distribution;

[0194] A power system dispatching device that takes into account the uncertainty of wind power probability distribution, including:

[0195] An uncertain set building module configured to: construct an uncertain set of wind power probability distribution;

[0196] A definition module configured to: define an operation risk cost based on an uncertain set of wind power probability distribution;

[0197] The objective function building module is configured to: build a robust economic dispatch model that takes into account the uncertainty of wind power probability distribution, based on the power system operation dispatch cost and operation risk cost, with the goal of pursuing the lowest total operation cost of the power system;

[0198] a constraint building block configured to: determine optimization constraints for a robust economic...

Embodiment 3

[0204] This embodiment also provides an electronic device, including: one or more processors, one or more memories, and one or more computer programs; wherein, the processor is connected to the memory, and the one or more computer programs are programmed Stored in the memory, when the electronic device is running, the processor executes one or more computer programs stored in the memory, so that the electronic device executes the method described in Embodiment 1 above.

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Abstract

The invention discloses a power system scheduling method and device considering wind power probability distribution uncertainty. The method comprises the following steps of: constructing a wind power probability distribution uncertainty set; based on the wind power probability distribution uncertainty set, defining operation risk cost; based on the operation scheduling cost and the operation risk cost of an power system, taking the pursuit of the lowest total operation cost of the power system as a target, constructing a robust economic scheduling model considering the wind power probability distribution uncertainty; determining an optimization constraint condition of the robust economic scheduling model; solving the robust economic scheduling model considering the wind power probability distribution uncertainty to obtain an optimal decision variable; and realizing the scheduling of the power system based on the optimal decision variable. Automatic optimization of the system operation risk level and the wind power admissible range under the condition of uncertain wind power probability distribution is realized. For a formed complex nonlinear optimization model, the original model is converted into a linear programming problem of iterative solution on the basis of the characteristics of the wind power probability distribution uncertainty set and the characteristics of actual operation of the system.

Description

technical field [0001] The invention relates to the technical field of power system operation dispatching, in particular to a power system dispatching method and device taking into account the uncertainty of wind power probability distribution. Background technique [0002] The statements in this section merely mention the background technology related to the present invention and do not necessarily constitute the prior art. [0003] At present, the world is under heavy pressure brought about by the depletion of fossil energy and the deterioration of the ecological environment. As an indispensable form of energy utilization in today's society, electric energy has undergone fundamental changes in its production and use pattern, which is highlighted by clean and renewable energy. The scale of grid-connected energy generation continues to expand. The large-scale development and utilization of renewable energy such as wind and light is regarded as an inevitable trend to achieve...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/00
CPCH02J3/46H02J3/008H02J2300/28H02J2203/20Y04S10/50
Inventor 杨明李鹏高源张长行黄诗颖员江洋
Owner SHANDONG UNIV
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