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

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, the efficiency of solving needs to be improved, and automatic optimization cannot be achieved, so as to increase large-scale systems. Application potential, improved conservatism, guaranteed effectiveness

Active Publication Date: 2022-08-09
SHANDONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 in power systems is often combined with chance constraints, and its risk probability level needs to be set in advance, which cannot automatically optimize the system operation risk level
On the other hand, there is currently no relevant application to directly optimize the acceptable range of wind power, resulting in the lack of specific wind power scheduling decision-making information in the decision-making results

Method used

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

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Embodiment 1

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

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

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

[0042] S102: Define the operation risk cost based on the uncertainty set of the probability distribution of wind power;

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

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

[0045] S105: Solve a robust economic dispatch model that takes into account the uncertainty o...

Embodiment 2

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

[0194] Power system dispatching devices that take into account the uncertainty of the probability distribution of wind power, including:

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

[0196] a definition module, which is configured to: define the operation risk cost based on the uncertainty set of the probability distribution of wind power;

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

[0198] a constraint building block c...

Embodiment 3

[0204] This embodiment also provides an electronic device, comprising: 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 Stored in the memory, when the electronic device runs, the processor executes one or more computer programs stored in the memory, so that the electronic device executes the method described in the first embodiment.

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Abstract

The invention discloses a power system scheduling method and device that take into account the uncertainty of the probability distribution of wind power, and constructs the uncertainty set of the probability distribution of wind power; defines the operation risk cost based on the uncertainty set of the probability distribution of wind power; cost, with the goal of pursuing the lowest total operating cost of the power system, construct a robust economic dispatch model that takes into account the uncertainty of the probability distribution of wind power; determine the optimization constraints of the robust economic dispatch model; The robust economic dispatch model is solved to obtain the optimal decision variables; the power system dispatch is realized based on the optimal decision variables. It realizes the automatic optimization of the system operation risk level and the acceptable range of wind power under the condition of uncertainty of the probability distribution of wind power. According to the complex nonlinear optimization model formed, combined with the characteristics of the uncertainty set of the probability distribution of wind power and the characteristics of the actual operation of the system, the original model is transformed into an iterative linear programming problem.

Description

technical field [0001] The invention relates to the technical field of power system operation and scheduling, in particular to a power system scheduling method and device that take into account the uncertainty of the probability distribution of wind power. Background technique [0002] The statements in this section merely mention background related to the present invention and do not necessarily constitute prior art. [0003] At present, the world is under heavy pressure from the depletion of fossil energy and the deterioration of the ecological environment. As an indispensable main 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 sustainable s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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