A method, device, equipment and medium for controlling three-phase unbalance in a platform area

A three-phase, balanced technology, applied in circuit devices, multi-phase network asymmetry reduction, multi-phase network elimination/reduction of asymmetry, etc., can solve problems such as consuming a lot of manpower and time, and it is impossible to achieve ideal load adjustment.

Active Publication Date: 2022-01-11
ZHANJIANG POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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Problems solved by technology

[0003] The first type of method requires that the load can be adjusted, and the adjustment of the load cannot achieve an ideal average combination. It needs to be adjusted according to the degree of imbalance, which requires a lot of manpower and time to complete; the second type is load compensation. The problem is cost and capacity

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  • A method, device, equipment and medium for controlling three-phase unbalance in a platform area
  • A method, device, equipment and medium for controlling three-phase unbalance in a platform area
  • A method, device, equipment and medium for controlling three-phase unbalance in a platform area

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Embodiment Construction

[0049] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0050] figure 1 It is a method flowchart of an embodiment of a method for controlling the three-phase unbalance in the station area of ​​the present application, such as figure 1 as shown, figure 1 Including:

[0051] Step 101, regularly collect the voltage and current data of the user electric meters in the station area, and the total load of the public distrib...

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Abstract

This application discloses a method, device, equipment and medium for controlling the three-phase unbalance in the station area, including: regularly collecting the voltage and current data of the user electric meters in the station area, and the total load of the public distribution transformer load terminal; The voltage and current data of users on each phase and the total load of the public distribution transformer load terminal; divide the total load of the public distribution transformer load terminal by 3 to obtain the ideal load value of each phase at each moment, and calculate the ideal current value of each phase; calculate each The difference between the total current value of each phase and the ideal current value of each phase; according to the difference, determine the user's call-in and call-out mode on each phase; count the user's call-in and call-out mode of each phase at each moment, and get the need to adjust The user with the most number of times; calculate the adjusted three-phase current, if the adjusted three-phase current does not meet the preset three-phase balance standard, and perform corresponding adjustments for each phase user. The application can quickly adjust the three load conditions, improve load adjustment efficiency, and avoid waste of manpower and material resources.

Description

technical field [0001] This application relates to the technical field of power grid three-phase adjustment and balance, and in particular to a method, device, equipment and medium for controlling three-phase unbalance in a power grid. Background technique [0002] At present, due to the uneven distribution of power load supplied by public distribution transformers and the random change of power load, the phenomenon of three-phase imbalance in the station area is becoming more and more common. As a result, many problems are unfavorable to the healthy operation of the power grid. For the distribution network side, the three-phase imbalance reduces the transformer output and overload capacity, while increasing line loss and transformer loss. For the user side, the voltage of a certain phase is high or low due to imbalance, which affects the quality of the user voltage. There are mainly two types of existing three-phase unbalance control methods, one is to adjust the load acco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/26H02J3/14
CPCH02J3/26H02J3/144Y04S20/222Y02E40/50Y02B70/3225
Inventor 韩佳锐梁英廉
Owner ZHANJIANG POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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