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Island event detection method and device for smart power grid, storage medium and equipment

A technology of intelligent electronic equipment and smart grid, which is applied to measurement devices, circuit devices, electrical components, etc., can solve the problems of high investment cost and detection methods with detection blind spots, and achieve the effect of solving detection blind spots.

Pending Publication Date: 2022-03-25
STATE GRID BEIJING ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an islanding event detection method, device, storage medium, and equipment for a smart grid, so as to at least solve the technical problems of detection blind spots and high investment costs in the prior art in the islanding event detection method of the power grid

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  • Island event detection method and device for smart power grid, storage medium and equipment
  • Island event detection method and device for smart power grid, storage medium and equipment
  • Island event detection method and device for smart power grid, storage medium and equipment

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Embodiment 1

[0029] According to an embodiment of the present invention, an embodiment of an islanding event detection method for a smart grid is provided. It should be noted that the steps shown in the flow charts of the drawings can be executed in a computer system such as a set of computer-executable instructions , and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0030] figure 1 is a flow chart of an islanding event detection method for a smart grid according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0031] Step S102, receiving the electrical parameter information uploaded by the smart electronic device, wherein the electrical parameter information includes: voltage phasor information and active power information;

[0032] Step S104, using the above-mentioned phasor processing terminal t...

Embodiment 2

[0089] According to an embodiment of the present invention, a device embodiment for implementing the islanding event detection method of the above-mentioned smart grid is also provided, which is applied to a smart grid system, and the above-mentioned smart grid system includes: an intelligent electronic device and a phasor processing terminal, wherein , the above-mentioned intelligent electronic device is connected with the above-mentioned phasor processing terminal, Figure 8 is a schematic structural diagram of an islanding event detection device for a smart grid according to an embodiment of the present invention, such as Figure 8 As shown, the above-mentioned device includes: a receiving module 80, a first calculating module 82, a second calculating module 84 and a judging module 86, wherein:

[0090] The receiving module 80 is configured to receive the electrical parameter information uploaded by the intelligent electronic device, wherein the electrical parameter informa...

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Abstract

The invention discloses an island event detection method and device for a smart power grid, a storage medium and equipment. The method comprises the steps that electrical parameter information uploaded by intelligent electronic equipment is received, and the electrical parameter information comprises voltage phasor information and active power information; calculating a filtering average value of the electrical parameter information by adopting a phasor processing terminal; based on the filtering average value of the electrical parameter information, a criterion result of the operation mode of the intelligent power grid system is calculated, and the criterion result comprises at least one of a voltage amplitude relative error absolute value, an active power per unit value and a voltage frequency relative error absolute value; and judging the operation mode of the smart grid system according to the criterion result. The island event detection method solves the technical problems that in the prior art, a detection blind area exists in a power grid island event detection method, and the investment cost is high.

Description

technical field [0001] The present invention relates to the technical field of power grid detection, in particular to a detection method, device, storage medium and equipment for an islanding event of a smart power grid. Background technique [0002] With the increasing proportion of renewable new energy in the power grid, the AC-DC hybrid distribution network system is becoming more and more complex. The inverter power supply and the synchronous power supply coexist interactively. The frame structure is continuously upgraded and expanded. [0003] However, in the prior art, islanding detection methods are often only adapted to a single type of power supply, or only modeled and designed for a single control strategy, which cannot meet actual needs. Traditional passive detection methods, active detection methods, and remote detection methods all have stubborn disadvantages such as island detection blind spots, injected disturbances affecting power quality, and expensive inst...

Claims

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Application Information

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IPC IPC(8): H02J3/38G01R31/00G01R31/08H02J13/00
CPCH02J3/388H02J3/381G01R31/00G01R31/086H02J13/00006H02J13/00022Y02E40/70Y02E60/00Y04S10/12Y04S10/18Y04S40/12Y04S40/126
Inventor 张金虎陈艳霞孙伯龙于希娟王宁闻宇邢悦李静林涛及洪泉谷君杜晓雅金震徐舒宋志伟王彦国朱中华
Owner STATE GRID BEIJING ELECTRIC POWER
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