An Optimal Planning Method for Microgrid Power and Operational Reserve Capacity

A technology for reserve capacity and optimal planning, applied in the field of power systems, can solve problems such as limited control and control without visibility of microgrid resources, and achieve the effect of minimizing coupling design and operating costs

Active Publication Date: 2021-08-03
ZHEJIANG UNIV OF TECH
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  • Claims
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Problems solved by technology

Another important issue is that the power supply organization does not have visibility control over microgrid resources. Generally speaking, the power supply organization has very limited control over these resources.

Method used

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  • An Optimal Planning Method for Microgrid Power and Operational Reserve Capacity
  • An Optimal Planning Method for Microgrid Power and Operational Reserve Capacity
  • An Optimal Planning Method for Microgrid Power and Operational Reserve Capacity

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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

A method for optimal planning of microgrid power and operating reserve capacity, said method comprising the following steps: S1. Planning and design upper-level issues: the upper-level objective function is formula (1), and the total plan and operating costs are converted into function values ​​by factor γ ; S2. Planning and Design Lower Level Problem: The lower level problem represents the goal of the power supply organization, which is to maximize the reserve capacity provided by the microgrid to support the operation of the power system. In the context of microgrid applications, the present invention proposes a two-tier model approach to minimize coupling design and operating costs. In the method, a non-collinear two-layer power and storage planning formula for the power supply organization and the microgrid is proposed, and the power supply organization can request backup capacity from the microgrid planner, which aims to minimize its planning and operating costs. The proposed model can also better represent potentially conflicting relationships between microgrid planners and power supply agencies.

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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Patent Type & Authority Patents(China)
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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