Device for realizing anti-islanding

An anti-islanding and mounting hole technology, which is applied in the field of devices that realize anti-islanding, and achieves the effects of reducing potential safety hazards, eliminating the islanding effect, and improving maintenance efficiency.

Pending Publication Date: 2022-01-21
STATE GRID ZHEJIANG ELECTRIC POWER COMPANY TAIZHOU POWER SUPPLY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And when the island phenomenon occurs, the system is no longer under the control of the power grid. Once the island effect occurs, the photovoltaic power generation system in an out-of-control state will bring a lot of harm

Method used

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  • Device for realizing anti-islanding
  • Device for realizing anti-islanding
  • Device for realizing anti-islanding

Examples

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Embodiment Construction

[0020] The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientations or positional relationships indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing t...

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Abstract

The invention relates to a device for realizing anti-islanding. The device comprises an anti-islanding controller and a handset. The anti-islanding controller is mounted on a lead, an inverter is mounted on the lead, the anti-islanding controller is located at the power grid side of the inverter, and the anti-islanding controller comprises a control module, a switch module and a wireless communication module. The switch module comprises an electromagnet and a switch, the control module is provided with a power taking device for supplying power to the electromagnet, the electromagnet is electrically connected with the power taking device, the switch is connected to the lead in series, the electromagnet enables the switch to be switched off after being powered on, a reset spring is arranged on the switch, and after the electromagnet is demagnetized, the reset spring enables the switch to be closed. The communication module is connected with the control module, the handset is in communication connection with the anti-islanding controller through the wireless communication module, and an operation module and a display screen are arranged on the handset.

Description

【Technical field】 [0001] The invention relates to a device for realizing anti-islanding, and belongs to the technical field of anti-islanding devices. 【Background technique】 [0002] With the photovoltaic "islanding effect", it refers to the phenomenon that when some wires of the power grid are cut off due to failure or maintenance, the power failure wires continue to be powered by the connected grid-connected power generation device, and together with the surrounding loads form a self-sufficient power supply island. When the grid is working normally, the system is clamped by the grid, and the photovoltaic power generation system is consistent with the grid. When the island phenomenon occurs, the system is no longer under the control of the power grid. Once the island effect occurs, the photovoltaic power generation system that is out of control will bring a lot of harm. 【Content of invention】 [0003] The technical problem to be solved by the present invention is to prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
CPCH02J3/388H02J3/381H02J2300/24Y02E10/56
Inventor 付小平张东波王周虹郑远德洪骋怀陈明旭张军达黄镇陈敏志应国德朱逸芝
Owner STATE GRID ZHEJIANG ELECTRIC POWER COMPANY TAIZHOU POWER SUPPLY
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