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Method and system for coordinated regulation of multi-distribution network with high proportion of distributed power

A distributed power supply and distribution network technology, applied in the direction of power network operating system integration, electrical components, system integration technology, etc., can solve problems such as the inability to guarantee user information privacy, achieve high communication efficiency, less information interaction, and guarantee Effects on User Privacy

Active Publication Date: 2021-12-21
SHANDONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The inventors found that the existing adjustment strategies for multi-element distribution networks with a high proportion of distributed power sources cannot simultaneously meet the requirements of safe and stable operation of the power grid and satisfy the economic interests of users to the greatest extent, and the existing regulation strategies with a high proportion of distributed power In the process of multivariate distribution network regulation, more user information is obtained, and the privacy of user information cannot be guaranteed

Method used

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  • Method and system for coordinated regulation of multi-distribution network with high proportion of distributed power
  • Method and system for coordinated regulation of multi-distribution network with high proportion of distributed power
  • Method and system for coordinated regulation of multi-distribution network with high proportion of distributed power

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Embodiment 1

[0049] In specific implementation: this embodiment aims at the multivariate distribution network with a high proportion of distributed power sources, aiming at the minimum economic cost and the minimum deviation between the user-side voltage and the standard voltage value, and establishes an optimal regulation model.

[0050] In this embodiment, according to the iterative calculation format of the Lagrange multiplier method, the solution process of the optimization model is subtly decomposed to form a collaborative optimization adjustment strategy for decentralized calculation of the optimization target. For part of the calculation work, the multivariate distribution network adjustment center will work with users to complete the calculation of adjustment targets while obtaining as little user information as possible and protecting user privacy, which greatly improves efficiency.

[0051] In order to solve the problem of parameter setting and adjustment in the solution process o...

Embodiment 2

[0165] refer to figure 2 , this embodiment provides a multivariate distribution network coordinated control system with a high proportion of distributed power sources, which includes a multivariate distribution network regulation center and a user side;

[0166] The multiple distribution network adjustment center is used for:

[0167] Obtain user voltage information;

[0168] Based on user voltage information and an optimal adjustment model, wherein the optimal adjustment model includes a user-side calculation part and a multivariate distribution network adjustment center calculation part, and the Lagrangian algorithm is used to optimize the multivariate distribution network adjustment center calculation part in the optimal adjustment model Carry out iterative calculation of the corresponding preset control target, and use the PID algorithm to control the error of the corresponding preset control target in the iterative calculation process, obtain the adjustment signal of th...

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Abstract

The invention belongs to the field of power system optimization and regulation, and provides a method and system for coordinated regulation and control of a multivariate distribution network with a high proportion of distributed power sources. The method includes obtaining user voltage information by the multivariate distribution network regulation center; based on the user voltage information and the optimal regulation model, using the Lagrangian algorithm to iteratively calculate the corresponding preset control for the calculation part of the multivariate distribution network regulation center in the optimal regulation model At the same time, the PID algorithm is used to control the error of the corresponding preset control target in the iterative calculation process, and the adjustment signal of the local load on the user side is obtained, and the adjustment signal of the local load on the user side is sent to the user side; the user side is based on the local The load adjustment signal and the user-side calculation part in the optimization adjustment model iteratively calculate the corresponding preset control target, and at the same time use the PID algorithm to control the error of the corresponding preset control target in the iterative calculation process, thereby adjusting the size of the local load.

Description

technical field [0001] The invention belongs to the field of power system optimization and regulation, and in particular relates to a method and system for coordinated regulation and control of a multivariate distribution network with a high proportion of distributed power sources. Background technique [0002] The statements in this section merely provide background technical information related to this embodiment, and do not necessarily constitute prior art. [0003] With the development of modern power systems, more and more distributed power sources, such as wind power, photovoltaics and energy storage, are connected to the distribution network. This means that the distribution network has changed from a network in which users passively consume electric energy to a multivariate distribution network that can provide active power. Among them, the multivariate distribution network refers to a distribution network that includes a variety of distributed power sources (distri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46H02J3/14H02J3/28H02J3/00G06Q10/06G06Q50/06
CPCH02J3/466H02J3/381H02J3/144H02J3/28H02J3/0075G06Q10/06312G06Q10/06315G06Q50/06H02J2203/10H02J2203/20H02J2300/20H02J2310/58H02J2310/64Y04S10/50Y04S20/222Y02E40/70Y02B70/3225H02J4/00H02J2300/24G05B6/02G05B13/042H02J3/00
Inventor 吕天光安沫霖韩学山陈健孙树敏
Owner SHANDONG UNIV