An optimal planning method for power and operating reserve capacity of micro-grid

A technology of reserve capacity and optimization planning, applied in the field of power system, can solve the problems of limited control and no visibility of microgrid resources, and achieve the effect of minimizing coupling design and operating costs

Active Publication Date: 2019-01-15
ZHEJIANG UNIV OF TECH
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Problems solved by technology

Another important issue is that the power supply organization does not have visibility control over microgri

Method used

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  • An optimal planning method for power and operating reserve capacity of micro-grid
  • An optimal planning method for power and operating reserve capacity of micro-grid
  • An optimal planning method for power and operating reserve capacity of micro-grid

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Embodiment Construction

[0059] The present invention will be further described below in conjunction with the accompanying drawings.

[0060] refer to figure 1 , an optimal planning method for microgrid power and operating reserve capacity, comprising the following steps:

[0061] S1. Planning and designing upper-level issues;

[0062] The upper-level objective function is formula (1), and the total planning and operating costs are transformed into function values ​​by factor γ, where l y is the capital recovery coefficient;

[0063]

[0064] among them is the cost of carbon emissions in year y, and C y (P) is defined as follows:

[0065]

[0066] running cost C. y The first part of (P) is divided into two parts: the first part includes the cost of generating electricity during normal operation of the power system multiplied by the probability that any preselected contingency ρ(0) does not occur, while the second part includes The contingency of k∈K period cost and multiplied by the prob...

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Abstract

The method comprises the following steps: S1. planning and designing the upper layer problem: the upper layer objective function is formula (1), and the master plan and operation cost are converted into function value according to factor gamma; S2. lower-level problems in planning and designing: the lower-level problems represent the goal of the power supply organization, that is, to maximize thereserve capacity provided by the micro-grid to support the operation of the power system. In the context of microgrid applications, the present invention proposes a two-layer model method to minimizecoupling design and operating costs. In the method, the non-collinear bi-level power and reserve planning formulas for power supply and microgrid are proposed. The power supply can request reserve capacity from the microgrid planner, which is designed to minimize the planning and operating costs of the microgrid planner. The proposed model can also better represent the possible conflicts between the micro-grid planner and the power supply.

Description

technical field [0001] The invention belongs to the field of power systems, and proposes a method for coupling micro-grid power and reserve capacity planning. Background technique [0002] The power industry has undergone significant changes in recent years. With the increasing penetration of renewable energy and the utilization of demand-side response resources, the traditional central grid is being transformed into a distributed microgrid. The gradual transformation of the grid and the penetration of intermittent energy sources challenge the stable development of utilities and the ability of the economic system to operate. Many solutions to this problem have been proposed, including microgrid technology to integrate renewable resources and improve the reliability and efficiency of local systems. The efficient aggregation of these distributed resources helps to replace the system management and control of the main network capacity. Another important issue is that the pow...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06312G06Q50/06Y04S10/50
Inventor 周丹戴慧雯任志伟
Owner ZHEJIANG UNIV OF TECH
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