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Dynamic lightning protection method and system

A protection system and lightning technology, applied in general control system, system integration technology, control/regulation system, etc., can solve problems such as difficult to eliminate, achieve the effect of reducing power failure losses, improving system stability, and reducing power grid accidents

Inactive Publication Date: 2017-12-08
JIANGSU ELECTRIC POWER CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing traditional lightning protection technology can minimize lightning damage, but it is difficult to completely eliminate it. In actual operation, there are still a large number of power outages caused by lightning strikes in the power grid, which cannot be solved by relying on traditional lightning protection technology.

Method used

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  • Dynamic lightning protection method and system

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0046] like figure 1 As shown, a lightning dynamic protection method includes the following steps:

[0047] Step 1, real-time lightning detection, to track the location of the thunderstorm.

[0048]The ground-based lightning space radiation sensor network is used to obtain real-time lightning azimuth data, and the atmospheric electric field intensity meter is used to obtain real-time atmospheric electric field intensity information, and the thunderstorm position is tracked based on the above two data sources. At the same time, in order to make it clearer that the power grid is affected by lightning, the power grid can be divided into layers, and the early warning level of each part...

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Abstract

The invention discloses a dynamic lightning protection method, which comprises the steps of carrying out real-time lightning detection; tracking a thunderstorm position; and carrying out dynamic lightning protection control on a power grid according to a power grid control strategy, wherein the power grid control strategy comprises one or more of the following strategies of (1) optimizing the operation mode of the power grid, changing a power flow path of the power grid and preventing the power flow of the power grid from passing through an area threatened by lightning; (2) adjusting the power flow of the power grid, reducing the power flow on a power transmission path in the area threatened by lightning and increasing the power flow on the power transmission path in a security area; and (3) carrying out nonlinear control through a generator / generation unit, dynamically controlling a power supply to control power flow output of the power grid and increasing power output in the security area. Meanwhile, the invention also discloses a dynamic lightning protection system. Dynamic lightning protection is achieved by combining real-time lightning tracking with power grid stability calculation according to one or more control strategies.

Description

technical field [0001] The invention relates to a lightning dynamic protection method and system, belonging to the field of lightning protection. Background technique [0002] Lightning has always been a major factor endangering power grid security. More than half of power grid accidents in my country's coastal areas are caused by lightning. The existing traditional lightning protection technology can minimize lightning damage, but it is difficult to completely eliminate it, which is also a worldwide problem. [0003] In recent years, the global climate has changed significantly, extreme weather has increased, and lightning activities have become more frequent and violent. According to research released by international authoritative institutions, in the foreseeable future decades, the global thunderstorm activity will continue to increase significantly. [0004] With the development of the power system, lightning has always been a major natural factor that endangers the s...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J3/001G05B2219/21154G05B19/048H02J3/0012H02J13/0004Y04S10/50Y04S20/00Y02E40/70Y02B90/20
Inventor 童充张子阳蔡云峰王庆童明光
Owner JIANGSU ELECTRIC POWER CO
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