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Island microgrid system

A micro-grid and island technology, applied in information technology support systems, collectors, electric vehicles, etc., can solve problems such as insufficient consideration of energy storage life loss, and achieve the effect of output optimization

Pending Publication Date: 2021-02-12
WENZHOU ELECTRIC POWER DESIGN +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And when using energy storage to stabilize fluctuations, the life loss of energy storage is not fully considered

Method used

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[0060] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top "Surface", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular part.

[0061] refer to Figure 1 to Figure 7 As shown, in order to achieve the above object, the present invention provides the following technical solutions: an island microgrid system, including an energy storage module 1, a power generation module 2, a main grid module 3, an electric load module 4, and a microgrid optimized operation module 5 , the microgrid optimization operation module 5 is respectively connected with the energy storage module 1, the powe...

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Abstract

The invention discloses an island microgrid system. According to the technical scheme, the island microgrid system is characterized in that the island microgrid system comprises a data storage module,a data processing module, an operation prediction module and a decision and control module, wherein the data storage module is used to detect and store the state of charge and charge-discharge depthof the battery pack; the data processing module is used for converting the state of charge of the battery pack and the feedback charge-discharge depth state into economic cost and evaluating the economic cost; and the operation prediction module is used for converting a multi-objective problem into a single objective for optimization solution and optimizing by taking the economic cost, the tie line load rate and the tie line power variance as optimization objectives; and the decision and control module is used for adjusting the flow power of the power tie line, improving the load rate of the tie line and reducing the power variance of the tie line under the condition of avoiding frequent charging and discharging of stored energy, so that the utilization rate of the tie line is improved. The asset utilization rate and the energy storage life of the tie line can be optimized. And an extreme condition under single-target optimization is avoided.

Description

technical field [0001] The present invention relates to the technical field of island micro-grid optimization, more specifically, it relates to a sea-island micro-grid system. Background technique [0002] In recent years, due to problems such as energy crisis, environmental pollution, and excessive carbon emissions, renewable energy power generation technology and energy storage technology have attracted people's attention. With the development and utilization of renewable energy, distributed generation (distributed generation, DG) has received extensive attention, and microgrid technology has also been fully developed. The island area is rich in wind energy and solar energy resources. China has a vast coastline and has many island micro-grid demonstration projects. For example, Nanji Island Power Grid underwent new energy transformation in 2014. The existing wind power generation system is 1,000kW, photovoltaic power generation system is 835kW, and diesel engine power gen...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/38H02J3/32H02J7/00G06Q10/04G06Q50/06
CPCH02J3/008H02J3/381H02J3/32H02J7/0048G06Q10/04G06Q50/06H02J2203/20H02J2300/10H02J2300/22H02J2300/28Y04S10/50
Inventor 潘乐真赵璞林群戴瑞海郑圣郑思源李大任朱海立蒋毅金尉周婕
Owner WENZHOU ELECTRIC POWER DESIGN
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