Microgrid operation method and microgrid system with impact load and flywheel energy storage

A technology of flywheel energy storage and operation method, applied in the field of microgrid, can solve problems such as the decline of grid stability, the inability of grid generators to cooperate with energy supply, and the impact, and achieve the effect of saving diesel.

Active Publication Date: 2019-06-11
SHANDONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] (3) Three-phase unbalance;
[0007] (5) Large changes in active power affect the safe operation of generator sets
In this way, the grid generator cannot cooperate with the energy supply, and frequent switching will also cause shocks, resulting in a decrease in the stability of the grid

Method used

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  • Microgrid operation method and microgrid system with impact load and flywheel energy storage
  • Microgrid operation method and microgrid system with impact load and flywheel energy storage

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[0039] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0040] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0041] A microgrid operation method with impact load and flywheel energy storage of the present invention, the m...

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Abstract

The present invention discloses an operation method of microgrid having impact load and flywheel energy storage and a microgrid system. The microgrid having the impact load and the flywheel energy storage is provided with a diesel generating set, and in the operation process of the microgrid having the impact load and the flywheel energy storage, the diesel generating set is always located in the work state of a rated power. The operation method of the microgrid having the impact load and the flywheel energy storage comprises: when the impact load starts, the diesel generating set accesses a power grid for generation, the diesel generating set is cooperated with the flywheel to supply power for the impact load; and when the impact load is end, the power provided by the diesel generating set is automatically converted to charge the flywheel so as to allow the diesel generating set to be continuously perform the operation mode of rated power supply to reduce the impact on the power grid through cooperation power supply of the diesel generating set and the flywheel.

Description

technical field [0001] The invention belongs to the field of micro-grids, and in particular relates to a micro-grid operating method and a micro-grid system with impact loads and flywheel energy storage. Background technique [0002] Due to the rapid development of the application of micro-grid, the optimal utilization of new energy power generation resources in a wider range has been realized, and the electrification of remote mountainous islands and mobile vehicles has promoted the development of power marketization. As a small-scale power grid, microgrid has large fluctuations and uncertainties in its power generation and load. Especially in the military field, load fluctuations are even more impossible to predict effectively and become more severe. Among them, the impact load has many hazards to the power grid with the characteristics of short time and large amplitude, but it is also an important part of some micro-grids. The research results of impact load are roughly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/30
CPCY02E60/16
Inventor 梁军李和丰贠志皓张峰
Owner SHANDONG UNIV
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