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A 10kv distribution network optimization method and device based on phase difference

An optimization method and a technology for optimizing devices, which are applied to circuit devices, AC networks with the same frequency from different sources, electrical components, etc., can solve problems such as phase differences of 10 kV power grids, reduce power outage time, and improve power supply reliability Effect

Active Publication Date: 2015-12-02
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, the present invention provides a 10kV distribution network optimization method and device based on phase difference, which can make full use of the existing stock distribution network assets, and only need a small amount of investment to solve the problem of phase difference in the 10kV power grid question

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  • A 10kv distribution network optimization method and device based on phase difference
  • A 10kv distribution network optimization method and device based on phase difference
  • A 10kv distribution network optimization method and device based on phase difference

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Embodiment 1

[0034] Such as figure 1 and figure 2 As shown, a kind of 10kV distribution network optimization method based on phase difference of the present invention, described 10kV distribution network comprises 220kV substation, 110kV substation, 35kV substation and 10kV distribution line, described 220kV substation and 110kV substation and 35kV substation respectively The high-voltage sides of the substations are connected, and the low-voltage sides of the 110kV substation and the 35kV substation are respectively connected to 10kV distribution lines. Wherein, the 220kV substation includes a 220kV three-winding 220kV transformer of 220 / 110 / 35kV, and the 10kV distribution line includes a 10kV overhead line and a 10kV cable line.

[0035] The optimization method includes the following steps:

[0036] Investigate the 10kV distribution network to obtain the voltage level sequence, transformer type, number of substations and network structure information of the power grid;

[0037]Determ...

Embodiment 2

[0043] Such as figure 1 and figure 2 As shown, a kind of 10kV distribution network optimization method based on phase difference of the present invention, described 10kV distribution network comprises 220kV substation, 110kV substation, 35kV substation and 10kV distribution line, described 220kV substation and 110kV substation and 35kV substation respectively The high-voltage sides of the substations are connected, and the low-voltage sides of the 110kV substation and the 35kV substation are respectively connected to 10kV distribution lines. Wherein, the 220kV substation uses a 220 / 35kV double-winding 220kV transformer, and the 10kV distribution line includes a 10kV overhead line and a 10kV cable line.

[0044] The optimization method comprises the following steps:

[0045] Investigate the 10kV distribution network to obtain the voltage level sequence, transformer type, number of substations and network structure information of the power grid;

[0046] Determine the transf...

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Abstract

The invention discloses a method and a device for optimizing a 10KV power distribution network based on phase difference. The method comprises the steps of performing investigate and survey on the 10KV power distribution network to obtain information including a voltage class sequence, a transformer type, the number of transformer substations and a network structure of the 10KV power distribution network, and replacing the corresponding 110kV transformer or 35kV transformer to eliminate the phase difference of low-voltage sides of a 110kV transformer substation and a 35kV transformer substation. According to the device, high-voltage sides of the 110kV transformer substation and the 35kV transformer substation are respectively connected with a 220kV transformer substation, and the low-voltage sides of the 110kV transformer substation and the 35kV transformer substation are respectively connected with a 10kV power distributing line. By means of the method and the device for optimizing the 10KV power distribution network, the phase difference is eliminated by replacing the corresponding 110kV transformer or 35kV transformer according to information of the current power distribution network, the existing stocked power distribution network property is made full use of, the problem of the phase difference existing in the 10KV power distribution network is solved by adding less investment, power supply reliability of the 10KV power distribution network is improved, and power outage time of the 10KV power distribution network is shortened.

Description

technical field [0001] The invention relates to the technical field of distribution network structure, in particular to a method and device for optimizing a 10kV distribution network based on phase difference. Background technique [0002] The 10kV distribution network is an important part of the power grid. It directly faces the users and is directly related to the safe and reliable power supply to the users. In recent years, due to the strong momentum of economic development, the process of industrialization and urbanization has accelerated; in addition, the transformation of old cities has also been carried out on a large scale; these have a great impact on the distribution network, and also put forward higher requirements for the distribution network. Therefore, it is very necessary to optimize the existing 10kV distribution network to meet the needs of economic development and increasing load. [0003] At present, there are 220, 110, 35 and 10 kV voltage levels in powe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/08H02J13/00
CPCY02E40/76Y02E60/723Y04S10/16Y04S10/545Y02E40/70Y02E60/00Y04S10/50
Inventor 郑志杰王艳赵龙贾善杰吴奎华梁荣杨波王轶群杨慎全冯亮
Owner STATE GRID CORP OF CHINA
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