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Optimal breaking switch optimization method and system

A technology of breaking switch and optimization method, applied in the direction of system integration technology, information technology support system, forecasting, etc., can solve the problems of increased line loss, non-economic operation of power grid, complex data statistics, etc., to reduce line loss rate and reduce work Quantity, the effect of improving work efficiency

Active Publication Date: 2019-11-29
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In the multi-connection distribution network wiring mode, the disconnection of multiple substation lines in the 10kV distribution network line forms a new distribution network through the opening and closing of the contact switch. Lines, to supply power to users on the lines, have the advantages of high contact rate, flexible distribution network structure and small power supply radius; the more lines hand in hand and mutual supply, the more contact switches, and of course the more optional operation modes However, due to the increase in the number of contact switches, there are technical problems in the operation mode and data statistics of multi-connection distribution network wiring. At present, there is a lack of comprehensive analysis of the load of each line segment, and it is not necessarily possible to select the optimal contact switch opening and closing. Switching the operation mode of the line by means of other methods may easily cause uneconomical operation of the power grid, resulting in increased line loss

Method used

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Embodiment 1

[0024] A method for optimizing an optimal breaking switch, which includes the following steps: selecting a main analysis distribution line, and judging whether there is a tie switch in the main analysis distribution line; if there is no tie switch in the main analysis distribution line, then End the optimization processing flow; if there is a tie switch in the main analysis power distribution line, then optimize the main analysis power distribution line and its corresponding tie line; The distribution line connected by the distribution line; the following steps are performed during optimization processing: filter out the operable main switch set, and list all the switch combination states of the operable main switch set; according to the switches of each operable main switch set Combined state, reorganize the topology of the main analysis distribution line and its corresponding contact line, remove the invalid operation mode after the reorganization topology, and obtain the new...

Embodiment 2

[0032]In this embodiment, the optimum breaking switch optimization system communicates with the power management system PMS2.0 system to obtain 10kV distribution line model data. The model data includes outlet switches, distribution line sections, distribution transformers, switches and topological relationships and other information. The optimum breaking switch optimization system is also communicated and interconnected with the power consumption information collection system to obtain the operation data of the 10kV distribution line. The electricity transformer metering point copy sees the data such as electric quantity, operation data. The model data and operating data of the 10kV distribution line model data provide data support for the judgment of tie switches, the screening of operable main switches, and the calculation of the original line loss value and the theoretical line loss value.

[0033] attached figure 1 The specific flow of the optimum breaking switch optimi...

Embodiment 3

[0050] This embodiment provides a judging method for a tie switch. The judging method is as follows: the switches in the main analysis distribution line and the corresponding tie line are divided into ordinary switches, T-type switches, V-type switches and three-position switches. Load switch; wherein, the T-type switch and the V-type switch can be divided into four independent ordinary switches, and the three-position load switch can be divided into an ordinary switch and two auxiliary switches; if the ordinary If the switch is a normally open switch and is in the disconnected state, it is determined that the ordinary switch is a suspected tie switch; otherwise, it is determined that the ordinary switch is a breaking switch; if the suspected tie switch belongs to a different power distribution line, then it is determined that the The suspected tie switch is a tie switch; otherwise, it is determined that the ordinary switch is a breaking switch.

[0051] In this embodiment, af...

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Abstract

The invention provides an optimal breaking switch optimization method and system, and the method comprises the following steps during optimization: screening an operable main switch set, and enumerating out all switch combination states of the operable main switch set in parallel; according to the switch combination state of each operable main switch set, carrying out recombination topology on themain analysis distribution line and the corresponding contact line, and removing invalid operation modes after the recombination topology to obtain a new distribution line operation mode; calculatingtheoretical line loss values of the main analysis distribution line and the corresponding contact line after the topology recombination based on the new distribution line operation mode; and screening out a theoretical line loss minimum value, and setting a new distribution line operation mode corresponding to the theoretical line loss minimum value as an optimal operation mode. According to theinvention, the economic operation capability of the distribution network is improved, the line loss rate is reduced, the power grid operates more economically, and the purposes of loss reduction and energy conservation are achieved.

Description

technical field [0001] The invention relates to the field of multi-connection distribution network wiring, in particular to an optimization method and system for an optimal breaking switch. Background technique [0002] With the continuous improvement of users' requirements for distribution network power supply reliability and short-term power outages, the multi-connection distribution network connection mode has been developed due to the advantages of high equipment utilization, which has changed the traditional single-line radiation power supply mode and improved Power supply reliability and maintenance capability of line equipment; in the entire power system, line loss is the main component of power system loss. [0003] In the multi-connection distribution network wiring mode, the disconnection of multiple substation lines in the 10kV distribution network line forms a new distribution line through the opening and closing of the contact switch to supply power to users on ...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06H02J3/00
CPCG06Q10/04G06Q50/06H02J3/00Y04S10/50Y02E40/70
Inventor 杨帆刘俊冯红臣冯旭龙任新丁马奇超
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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