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Microgrid voltage regulation method and device based on Nash game

A voltage regulation and microgrid technology, applied in the direction of AC network voltage regulation, circuit devices, AC networks with energy trade/energy transmission authority, etc., can solve the problem of sacrificing the interests of market participants, and improve reliability and economy. , eliminate adverse effects, the effect of high system comprehensive benefit

Active Publication Date: 2020-02-18
山东正晨科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to ensure that these conditions are realized and met, which may be at the expense of market participants in extreme conditions

Method used

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  • Microgrid voltage regulation method and device based on Nash game
  • Microgrid voltage regulation method and device based on Nash game
  • Microgrid voltage regulation method and device based on Nash game

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The purpose of this implementation is to provide a method for voltage regulation of a microgrid under multiple distributed power sources.

[0049] Based on the above objectives, this embodiment provides a microgrid voltage adjustment method based on the Nash game, which specifically includes the following steps:

[0050] Step 1: Establish a voltage regulation game model for participants in the microgrid;

[0051] Aiming at the voltage regulation method of the microgrid under the power market environment where multiple distributed generations (DGs) are connected, especially considering the micro grid operator (MGO) and active power suppliers, The economic factors in online voltage regulation under the cooperative game of APSs) and active load users (ALUs). The voltage regulation problem is regarded as a non-cooperative game between the benefits of various market participants. Defined as a voltage regulation game (VRG) model.

[0052] In order to establish a Nash game model for ...

Embodiment 2

[0138] The purpose of this embodiment is to provide a computing device.

[0139] A microgrid voltage regulation device based on the Nash game includes a memory, a processor, and a computer program that is stored on the memory and can run on the processor. The processor implements the following steps when the program is executed, including:

[0140] Step 1: Establish a voltage regulation game model for participants in the microgrid;

[0141] Step 2: Establish a participant's strategy space, where each participant's strategy space includes decision variables and constraints;

[0142] Step 3: Determine the strategic space according to the electricity price and stability conditions;

[0143] Step 4: Determine the objective function and constraint conditions of the voltage regulation game model;

[0144] Step 5: Judge whether to achieve Nash equilibrium, if not, return to step 3; if yes, convert the voltage regulation game model into a two-layer optimization model for solution.

Embodiment 3

[0146] The purpose of this embodiment is to provide a computer-readable storage medium.

[0147] A computer-readable storage medium, on which a computer program is stored for micro-grid voltage regulation, and when the program is executed by a processor, the following steps are performed:

[0148] Step 1: Establish a voltage regulation game model for participants in the microgrid;

[0149] Step 2: Establish a participant's strategy space, where each participant's strategy space includes decision variables and constraints;

[0150] Step 3: Determine the strategic space according to the electricity price and stability conditions;

[0151] Step 4: Determine the objective function and constraint conditions of the voltage regulation game model;

[0152] Step 5: Judge whether to achieve Nash equilibrium, if not, return to step 3; if yes, convert the voltage regulation game model into a two-layer optimization model for solution.

[0153] The steps involved in the second and third embodiments abo...

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Abstract

The invention discloses a Nash game-based microgrid voltage regulation method and apparatus. The method comprises the steps of establishing a voltage regulation game model of a microgrid participator;establishing strategy space of participators, wherein the strategy space of each participator comprises a decision variable and a constraint condition; determining the strategy space according to electricity prices and smooth and steady conditions; determining a system benefit function and a constraint condition of the voltage regulation game model; judging whether to execute Nash balance or not;if not, returning to the step 3; and if so, converting the voltage regulation game model into a dual-layer optimization model and performing solving. By virtue of the Nash game-based microgrid voltage regulation method and apparatus, the maximum of the system comprehensive benefit under access of the multiple distributed generations can be realized.

Description

Technical field [0001] The invention belongs to the technical field of power system reliability, and in particular relates to a microgrid voltage adjustment method and device based on the Nash game. Background technique [0002] Renewable and sustainable development technologies have played a key role in my country's energy conservation and emission reduction policies. In the context of the continuous integration of large-scale wind power into the grid, China is vigorously promoting the development of various types of distributed power sources, striving to connect more green and sustainable distributed energy sources to the grid. However, access to too many DGs may bring severe challenges to the safe and stable operation of the distribution network. Therefore, researchers have proposed a micro grid (MG). The microgrid can integrate some small-scale DGs into the large grid to meet the future development needs of the grid. However, due to capacity limitations, in most power mark...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/12H02J3/00
CPCH02J3/008H02J3/12H02J2203/20
Inventor 辛征张海涛龙日尚张建华高诺王栋杨红娟
Owner 山东正晨科技股份有限公司
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