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Microgrid control system and microgrid

A control system and microgrid technology, applied in the microgrid field, can solve the problems of poor stability of the microgrid system and achieve the effect of enhancing stability

Active Publication Date: 2019-07-05
BEIJING ETECHWIN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the real-time performance of the existing microgrid depends on the corresponding speed of communication and downstream equipment, and the stability of the microgrid system is poor, which needs to be improved urgently

Method used

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  • Microgrid control system and microgrid
  • Microgrid control system and microgrid
  • Microgrid control system and microgrid

Examples

Experimental program
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Embodiment Construction

[0043] Various example embodiments will now be described more fully with reference to the accompanying drawings, in which some example embodiments are shown.

[0044] Refer below Figure 1 to Figure 17 A microgrid control system and a microgrid according to an embodiment of the present invention are described.

[0045] figure 1 shows a block diagram of a microgrid control system according to an embodiment of the invention, figure 2 A schematic diagram of hardware connection of a microgrid control system according to an embodiment of the present invention is shown.

[0046] refer to figure 1 and figure 2 , the microgrid control system according to the embodiment of the present invention includes: a grid-connected switch 100 , a first controller 200 , a second controller 300 and an energy router 400 . The on-grid switch 100 , the first controller 200 , the second controller 300 and the energy router 400 communicate with each other through optical fibers. Here, the optica...

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Abstract

The present invention provides a microgrid control system and a microgrid. The microgrid control system comprises a grid-connected switch, an energy router, a first controller and a second controller.The first controller controls on-off of the grid-connected switch, and sends a first control command according to the state of the microgrid control system, the second controller receives the first control command from the first controller and responds to the first control command to control the energy router. The microgrid control system and the microgrid perform layered control to enhance the stability of the operation of the microgrid; and besides, through double closed loop control of a voltage and a current, the capacity with 100% unbalance load in an off-line state is achieved.

Description

technical field [0001] The present invention generally relates to a microgrid, and more specifically relates to a microgrid control system and a microgrid. Background technique [0002] With the development of new power technologies, people adjust the external power grid by introducing a micro-grid structure, which is conducive to the interconnection of distributed power sources and their large-scale access to medium and low-voltage power distribution systems. A microgrid is a system unit composed of a group of control devices, energy storage devices, loads, and micro power sources, supplying electric energy to the loads. A microgrid can either be connected to an external grid or run in isolation. [0003] However, the real-time performance of the existing microgrid depends on the corresponding speed of communication and downstream equipment, and the stability of the microgrid system is poor, which needs to be improved urgently. Contents of the invention [0004] The obj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/42H02J3/44H02J3/48H02J3/50H02H7/28
CPCH02J3/38H02J3/42H02J3/44H02J3/48H02J3/50H02H7/28H02J3/388Y02P80/14H02J3/381H02J3/18H02J2203/10H02J2310/10H02J13/00004H02J13/00017H02J13/00032H02J3/32Y02E40/30Y02E40/70Y02E60/00Y04S10/22Y04S10/12Y04S40/124H02J3/01G05B11/36H02H1/0007
Inventor 赵帅央兰云海秦承志
Owner BEIJING ETECHWIN ELECTRIC