Automatic reconfiguration operation method of low-voltage distribution network based on balance tracking method

A low-voltage distribution network, automatic reconfiguration technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as imperfections, reduce line losses, realize automatic reconfiguration, and comprehensively analyze load distribution in real time. Effect

Active Publication Date: 2017-07-07
STATE GRID CORP OF CHINA +3
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Distribution network automation is an effective auxiliary means to improve the safety of distribution network operation in foreign countries, but for low-voltage distribution networks, the application of domestic automation equipment is not perfect, and automation equipment for low-voltage distribution network load adjustment, automatic load balancing and There are not many automatic reconfiguration operation strategies for low-voltage distribution network to reduce line loss

Method used

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  • Automatic reconfiguration operation method of low-voltage distribution network based on balance tracking method

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Embodiment 1

[0023] Embodiment one: as attached figure 1 The distribution network shown includes two incoming lines, 1# incoming line and 2# incoming line, forming dual power supply incoming lines, which are connected to several loads through intelligent switching devices, and each load can be connected to two into the line. Among them, the switching device capable of switching power supply is used to control the connection between the load and the incoming line, so that it can be connected to different incoming lines as required. The intelligent power supply switching device is equipped with a communication module, a load measurement module, and a switch status control module, which can upload the load information and the status information of the switch connected to the load to the main station side, and the master station sends instructions for distribution and switching loads to the intelligent The transfer and switching device executes the switching command after signal processing by...

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Abstract

The invention relates to a scale tracking method based automatic low-voltage power distribution network reconstruction operation method. The method includes (1), calculating the sums of load power connected by inlet wires 1# and 2# and half of a difference value of the sums of the load power of the two inlet wires, judging whether loads of the inlet wires are equal or not, and if not, redistributing a power distribution network; selecting different switching according to the half of the difference value of the sums of the load power of the two inlet wires. The method has the advantages that line losses caused by nonuniformity in distributed loads of double power sources are reduced, existing electric power computer networks are utilized effectively, load distribution is analyzed accurately, rapidly, comprehensively in real-time, online automatic reconstruction of the low-voltage power distribution network is realized, quality of electric energy is improved greatly, economic operation of the power distribution network is promoted greatly through operation mode optimization, and both economic benefit and social benefit are huge.

Description

technical field [0001] The invention belongs to the technical field of electric power system automation, and specifically discloses an automatic reconfiguration operation method of a low-voltage distribution network based on a balance tracking method. Background technique [0002] Line loss refers to the loss and loss of power generated in various links such as power transmission, power transformation, power distribution and sales during the process of power transmission from power plants to power users. The line loss in the power grid accounts for a considerable part of the total power generation, so reducing the line loss has important practical significance. Load balancing can reduce the theoretical line loss. Under the condition of multiple incoming lines, the low-voltage distribution network connects the load to different incoming lines, adjusts the load, and adjusts the size of the load carried by the two incoming lines to achieve two The load carried by the line shou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/005
Inventor 陶叶炜吕培强陈会董晓峰姜宇萌
Owner STATE GRID CORP OF CHINA
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