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Transformer area three-phase imbalance treatment method and system based on intelligent terminal and storage medium

A three-phase, station area technology, applied in the direction of multi-phase network asymmetry reduction, multi-phase network elimination/reduction of asymmetry, multi-objective optimization, etc., can solve the problem of not considering load fluctuations, etc., to reduce the number of installations, The effect of strengthening monitoring capabilities and reducing installation and maintenance costs

Active Publication Date: 2022-04-12
STATE GRID ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing three-phase unbalance control methods all give commutation strategies for the static three-phase power and unbalanced state, without considering the fluctuation of the load

Method used

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  • Transformer area three-phase imbalance treatment method and system based on intelligent terminal and storage medium
  • Transformer area three-phase imbalance treatment method and system based on intelligent terminal and storage medium
  • Transformer area three-phase imbalance treatment method and system based on intelligent terminal and storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A three-phase unbalance control method for a station area based on an intelligent terminal combined with a commutation switch, including: real-time monitoring of the three-phase unbalance degree of the station area and ultra-short-term power prediction in consideration of the fluctuation of load in the future period, and obtaining real-time power data and prediction data; according to the real-time data and prediction data of the power, the commutation command is calculated based on the optimal action strategy model of the commutation switch considering the remaining life of the commutation switch; The specified phase change switch among several phase change switches installed in the optimal layout of the phase switch issues a phase change command.

[0035] In this embodiment, the smart terminal, namely the smart distribution transformer terminal, is a device that monitors the operating parameters of the power grid in real time to realize automation, intelligence, and in...

Embodiment 2

[0090] Based on the method for managing three-phase unbalance in a station area with a smart terminal combined with a phase change switch described in Embodiment 1, this embodiment provides a system for managing three-phase imbalance in a station area with a smart terminal combined with a phase change switch, including:

[0091] The ultra-short-term power prediction module is used for real-time monitoring of the three-phase unbalance in the station area and taking into account the fluctuation of the load in the future for ultra-short-term power prediction, and obtains real-time data and forecast data of power;

[0092] The commutation command calculation module is used to calculate the commutation command based on the optimal action strategy model of the commutation switch considering the remaining life of the commutation switch according to the real-time data and forecast data of the power;

[0093] The commutation command issuing module is used to issue a commutation command ...

Embodiment 3

[0095] Based on the method for managing three-phase unbalance in a station area with a smart terminal combined with a phase-change switch described in Embodiment 1 and the system for managing three-phase unbalance in a station area with a smart terminal combined with a phase-change switch described in Embodiment 2, this The embodiment provides a computer-readable storage medium, the computer-readable storage medium includes a stored computer program, wherein when the computer program is run by a processor, the device where the storage medium is located is controlled to execute the method described in the first embodiment. method.

[0096] Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Fur...

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Abstract

The invention discloses a transformer area three-phase imbalance treatment method and system based on an intelligent terminal and a storage medium in the technical field of electric power automation, and the method comprises the steps: monitoring the three-phase imbalance degree of a transformer area in real time, carrying out the ultra-short-term power prediction through considering the fluctuation of a load in a future period of time, and obtaining the real-time data and prediction data of the power; according to the real-time data and the prediction data of the power, calculating a commutation instruction based on a commutation switch optimal action strategy model considering the residual life of the commutation switch; and sending a commutation instruction to a specified commutation switch in the plurality of commutation switches installed according to the optimal layout of the commutation switches at the selected optimal commutation instruction issuing time. According to the method, the fluctuation of the load in a period of time in the future is considered, the optimal time is selected to issue the commutation instruction, and frequent commutation is prevented from affecting the power quality of a transformer area.

Description

technical field [0001] The invention belongs to the technical field of electric power automation, and in particular relates to a method, system and storage medium for controlling three-phase unbalance in a station area based on an intelligent terminal. Background technique [0002] Electricity is the cornerstone of people's lives. Various forms of social activities are inseparable from electric energy. With the rapid development of social economy and science and technology, various new forms of energy consumption continue to emerge, and various production enterprises and residents have higher and higher requirements for electric energy quality. Three-phase unbalance is an important indicator of power quality, and three-phase unbalance can cause asymmetry of three-phase voltage or current, thereby causing changes in other power quality indicators. The three-phase four-wire power supply method of the domestic distribution network, for urban users, more than 90% of the load is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/26H02J3/00H02J13/00G06F30/20G06F111/06G06F119/06
CPCY02E40/50
Inventor 马志斌张瑞雪李飞侯哲帆刘肖骢崔彦波
Owner STATE GRID ELECTRIC POWER RES INST
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