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AC/DC hybrid microgrid and operation method thereof

A technology of AC-DC hybrid and DC micro-grid, which is applied in the direction of AC network with the same frequency from different sources, etc. It can solve the problem of not satisfying the stability of power supply, affecting the normal operation of the micro-grid system, and prone to failure of circuit equipment, etc. problems, to achieve the effect of improving charge and discharge efficiency, facilitating control, and increasing service life

Inactive Publication Date: 2018-11-16
杭州新融方科技有限公司
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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an AC-DC hybrid microgrid and its operation method, which has the advantages of facilitating the control of the AC-DC hybrid microgrid and reducing circuit failures, and solves the problem that the power supply stability cannot be well satisfied. Causes circuit equipment to fail easily, leads to increased electrical load, causes equipment loss or damage, affects the normal operation of the micro-grid system, and affects the effective control of the micro-grid

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  • AC/DC hybrid microgrid and operation method thereof
  • AC/DC hybrid microgrid and operation method thereof
  • AC/DC hybrid microgrid and operation method thereof

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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] see Figure 1-3 , an AC-DC hybrid micro-grid, including an AC-DC hybrid micro-grid, wherein the AC-DC hybrid micro-grid includes a distributed power supply, an energy storage device, an energy conversion device, compliance monitoring equipment, and an AC-DC protection device;

[0029] The output and input ends of the microgrid control system are electrically connected to the DC microgrid and the AC microgrid respectively, and the output and input ends o...

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Abstract

The invention relates to the technical field of AC / DC hybrid microgrids, and discloses an AC / DC hybrid microgrid. The AC / DC hybrid microgrid comprises a distributed power source, an energy storage device, an energy conversion device, composite monitoring equipment and an AC / DC protection device internally. The AC / DC hybrid microgrid and the operation method thereof can perform coordinated controlon a DC microgrid and an AC microgrid, improve the charging and discharging efficiency of the energy storage device, enable the electric energy in the microgrid to flow flexibly, prolong the service life of the AC / DC hybrid microgrid, ensure the long-term performance of the AC / DC hybrid microgrid, improve the operating speed of the system, improve the coordination rate of the power grid, and solvethe problems that circuit equipment is prone to fail, the electrical load is increased, equipment is worn or damaged, the normal operation of the microgrid system is affected and the effective control over the microgrid is affected because the power supply stability cannot be well satisfied.

Description

technical field [0001] The invention relates to the technical field of AC / DC hybrid microgrid, in particular to an AC / DC hybrid microgrid and an operation method thereof. Background technique [0002] Energy is the cornerstone of the survival and development of human society, and electricity, as its most direct and convenient form of application, is the source of power for national economic development. At present, my country's energy development is facing problems such as tightening constraints on traditional energy resources, low energy utilization efficiency, increasing pressure on the environment and ecology, severe energy security situation, and increased responsibility for addressing climate change. Vigorously develop distributed power generation energy supply technology, on the one hand, it can effectively improve the utilization efficiency of traditional energy sources, and at the same time, it can make full use of various local renewable energy sources. important m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/06
CPCH02J3/06
Inventor 马浩程
Owner 杭州新融方科技有限公司
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