Method and device for intelligently adjusting and predicting unbalanced load of power distribution network

A load balancing and intelligent adjustment technology, applied in the power field, can solve problems such as unbalanced three-phase loads, and achieve the effect of reducing costs

Pending Publication Date: 2022-05-13
宜昌测试技术研究所
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Problems solved by technology

[0004] The main purpose of the present invention is to propose a method and device for intelligent adjustment and prediction of unbalanced loads in distribution networks, aiming at solving the problems of unbalanced three-phase loads and harmonics, and ensuring high-quality output of electric energy

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  • Method and device for intelligently adjusting and predicting unbalanced load of power distribution network
  • Method and device for intelligently adjusting and predicting unbalanced load of power distribution network

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Embodiment Construction

[0030] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] Among the common power quality problems, three-phase unbalance and harmonic problems are the most prominent, causing the largest economic losses. In the low-voltage distribution network, due to factors such as uncontrollable capacity increase of single-phase load access and randomness of user power consumption time, the voltage of the three-phase distribution network will be unbalanced for a long time. The resulting loss of power supply lines can be as high as 12.8%, making the voltage on the user side too low to meet the access requirements. This low qualified power supply quality will seriously restrict the development of smart grid in the future.

[0032] In order to solve the above problems, the present invention proposes a method for intelligent regulation and prediction of unbalanced loads in distribution networks,...

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Abstract

The invention provides a method and a device for intelligently adjusting and predicting unbalanced load of a power distribution network, the method is applied to monitoring equipment of a cloud monitoring layer, and the method comprises the following steps: step 1, receiving operation state data of dynamic compensation equipment, intelligent commutation equipment and an intelligent instrument in a low-voltage power distribution network; the operation state data is sent through a network layer protocol; 2, calculating the unbalance degree of three-phase power utilization in the low-voltage power distribution network; 3, adjusting a three-phase load according to the unbalance degree, and improving the electric energy quality of three-phase output; or extracting historical data of the operation state of the low-voltage power distribution network, and performing clustering analysis on the operation state data to form different classifications; and the load of the low-voltage distribution network can be predicted based on the operation state data and the different classifications.

Description

technical field [0001] The invention belongs to the technical field of electric power, and relates to a method and a device for intelligent regulation and prediction of unbalanced loads in a distribution network. Background technique [0002] Among the common power quality problems, three-phase unbalance and harmonic problems are the most prominent, causing the largest economic losses. In the low-voltage distribution network, due to factors such as uncontrollable capacity increase of single-phase load access and randomness of user power consumption time, the voltage of the three-phase distribution network will be unbalanced for a long time. The resulting loss of power supply lines can be as high as 12.8%, making the voltage on the user side too low to meet the access requirements. This low qualified power supply quality will seriously restrict the development of smart grid in the future. [0003] To sum up, the existing technology has the following disadvantages: currently...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/26H02J3/01H02J3/00H02J13/00
CPCH02J3/26H02J3/01H02J3/003H02J13/00028
Inventor 尹江飞冯杰魏晓盼李夏
Owner 宜昌测试技术研究所
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