Home Nanogrid System and Community-Level Microgrid System

A technology for household nanogrid and home, which is applied in the field of household nanogrid system and community-level microgrid system, can solve the problems of low energy utilization efficiency and large power loss, so as to save multiple current conversions and improve energy utilization. rate effect

Active Publication Date: 2018-09-07
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, it can be seen that when new energy supplies power to household appliances, it needs to go through multiple conversions. Therefore, the power loss is large and the energy utilization efficiency is not high.

Method used

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  • Home Nanogrid System and Community-Level Microgrid System
  • Home Nanogrid System and Community-Level Microgrid System
  • Home Nanogrid System and Community-Level Microgrid System

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Embodiment Construction

[0025] 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.

[0026] The embodiment of the present invention discloses a family nano-grid system and a community-level micro-grid system, so as to improve the energy utilization rate when new energy is used to power household appliances.

[0027] see figure 2 , the embodiment of the present invention discloses a schematic structural diagram of a family nano-network system, including:

[0028] New energy electrical equipment 11, new energy power generation system 12, bidir...

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Abstract

This application discloses a household nanogrid system and a community-level microgrid system. The community-level microgrid system includes multiple household nanogrid systems, and each household nanogrid system includes new energy electrical equipment, new energy power generation systems, / DC and energy storage battery, the DC bus of new energy electrical equipment is connected to household appliances. The DC bus of the new energy electrical equipment can be directly connected to the DC power drive of the new energy power generation system. Compared with the traditional one, the current inversion process is omitted. Therefore, compared with directly using the new energy power generation system for power supply, household appliances using the DC bus of new energy electrical equipment can save multiple converter conversions, thereby improving energy utilization.

Description

technical field [0001] The present invention relates to the technical field of electric power system, and more specifically, relates to a family nano-grid system and a community-level micro-grid system. Background technique [0002] Microgrid refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, power electronic devices, loads and protection devices that can realize self-control, protection and management. The microgrid can run in parallel with the large power grid. When the energy is insufficient, it can absorb energy from the large power grid, and when the energy is sufficient, it can feed energy back to the large power grid. When the large power grid fails and the power is cut off, the microgrid can operate independently and continuously supply power to the loads in the area, thereby improving the reliability of power supply. Among them, the AC microgrid transmits electric energy in the form of AC, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/32
CPCH02J3/32H02J3/38Y02B10/10H02J3/322
Inventor 南树功黄猛任鹏唐文强刘霞
Owner GREE ELECTRIC APPLIANCES INC
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