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A multi-level microgrid control method based on four-dimensional energy management space

A technology of energy management and control methods, applied in the field of power systems, to achieve the effect of ensuring economic dispatch and optimal operation

Active Publication Date: 2015-12-16
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a multi-level micro-grid control method based on the four-dimensional energy management space, which effectively solves the energy optimization management problem of the micro-grid system under different modes, different time sequences and multi-constraint conditions

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  • A multi-level microgrid control method based on four-dimensional energy management space
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  • A multi-level microgrid control method based on four-dimensional energy management space

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Embodiment Construction

[0048] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0049] This embodiment provides a multi-level micro-grid control method based on four-dimensional energy management space, which mainly adopts the idea of ​​centralized management and decentralized control, and performs hierarchical / level control on distributed power sources or micro-grids in the entire system to solve various problems. Coordinated control and energy optimization problem between level systems, which includes the following steps:

[0050] (1) Establish a four-dimensional energy management space model;

[0051] The four-dimensional energy management space model proposed by the present invention is as follows: figure 1 As shown, it is mainly composed of five parts: element base B (Basic), operation mode M (Model), time series T (Time), priority level P (Priority), and control strategy C (Control). , compr...

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Abstract

Provided in the present invention is a multilevel microgrid control method based on a four-dimensional energy management space. The microgrid system comprises a multilevel microgrid and a distributed power supply. The method comprises the steps of: (1) establishing a four-dimensional energy management space model; (2) establishing a control policy library corresponding to the model; and (3) executing energy management and control of the system. The present invention uses a multidimensional combination to effectively solve the problem of multilevel distributed power supply / microgrid energy optimization management under different modes, different timings, and multiple constraint conditions; while at the same time, the theory can be flexibly used via aggregated constraint on the operation control of a unipolar microgrid / a single device. In actual application, according to demand, the number of layers / levels of each dimension can be selected flexibly, influencing factors under various conditions and constraints are fully considered, the corresponding control policy library is deduced systematically and scheduled in real-time, thus ensuring economic scheduling and optimized operation of the multilevel distributed power supply / microgrid connecting system.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a multi-level micro-grid control method based on a four-dimensional energy management space. Background technique [0002] In recent years, with the deterioration of the environment and the scarcity of non-renewable energy sources, renewable clean energy generation technologies represented by wind energy and solar energy have developed rapidly. Among them, the flexible and decentralized connection of small wind power generation and photovoltaic power generation to the user-side distribution network can improve the reliability of local power supply, reduce transmission loss, improve the utilization rate of primary energy and reduce exhaust gas emissions. The wind and photovoltaic power generation systems connected to the distribution network in this way are collectively referred to as distributed power generation. [0003] Due to the randomness and intermittent nature of wind energy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J13/00G06Q10/06G06Q50/06
CPCH02J3/02H02J3/38H02J13/00Y02E40/70Y04S10/50
Inventor 李洋盛万兴苏剑刘海涛吴鸣吕志鹏
Owner CHINA ELECTRIC POWER RES INST
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