CN113094858A - Power grid topology analysis method based on shore-based power supply offshore oil field group - Google Patents
Power grid topology analysis method based on shore-based power supply offshore oil field group Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
- H02J3/0012—Contingency detection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
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Abstract
The invention discloses a power grid topology analysis method based on a shore-based power supply offshore oilfield group, which takes the geographical position of equipment in the offshore oilfield group as a topological graph node, marks a connection port address of corresponding equipment at the topological graph node, takes a power transmission line connected with the equipment in the offshore oilfield group as a topological graph link, and indicates the power transmission line as information at the topological graph link.
Description
Technical Field
The invention relates to the technical field of power grids, in particular to a power grid topology analysis method based on a shore-based power supply offshore oil field group.
Background
In an electric power system, facilities and equipment for generating and using electricity are collectively referred to. It is an intermediate link for transmitting and distributing electric energy, and is mainly formed from power transmission line, transformer substation, distribution substation and distribution line which are connected into network. The unified whole of power generation and utilization, which is composed of transmission, transformation, distribution equipment and corresponding auxiliary systems, is generally referred to as a power grid.
Topology is a method of studying geometric characteristics independent of size and distance. The network topology is a network structure diagram composed of network node devices and communication media. In selecting the topology, the main considerations are: relative ease of installation, ease of reconfiguration, relative ease of maintenance, and the condition of the device affected when the communication medium fails.
Topology analysis is a basic function in various types of analysis and calculation of power systems. Power system analysis can be summarized as a simple two-step process: the column equation and the solution equation. Topology analysis belongs to the first stage in network analysis, and the main purpose of the topology analysis is to transition a physical abstract model to a mathematical model, so that the performance and flexibility of the topology analysis are related to the overall performance of all network analysis calculations.
At present, the topology analysis technology of the power system is very mature, and the main research point is to improve the speed of the topology analysis. There are two types of speed of topology analysis: one is to adopt the method of the local topology, utilize the existing topological analysis result, modify the local topological analysis data, achieve the speed to accelerate topological analysis; the other method is to adopt a layering method to divide the topology analysis into a plant station layer and a network layer, and modify the topology of some plant stations according to the situation each time.
In the practical application of the network analysis software, other various requirements are met, for example, some need to calculate a tie line, some need to calculate a branch load flow or a bus voltage of a certain transformer, some need to know the influence of topology change on the whole power grid, some need to know the specific area of the power grid change, and the like. How to meet these requirements is where topology analysis needs to be further improved. With the development of power grid intellectualization, topology analysis is taken as the basis and necessary links of various power system analysis, and the due potential of the topology analysis is fully exerted.
Disclosure of Invention
The invention aims to provide a power grid topology analysis method based on a shore-based power supply offshore oil field group, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a power grid topology analysis method based on a shore-based power supply offshore oil field group comprises the following steps:
s001, acquiring geographical position information of equipment in the offshore oilfield group, and acquiring power transmission line information of the equipment connected with the offshore oilfield group;
s002, acquiring power information of equipment in the offshore oilfield group, and determining connection port addresses of the equipment;
s003, establishing a power grid topological graph of the offshore oilfield group by using the geographical position information and the power transmission line information in the step S001 and the port address in the step S002;
s004, performing power supply and distribution simulation according to the power grid topological diagram in the step S003 to obtain a simulation result, feeding the simulation result back to the offshore oilfield group power grid to obtain an offshore oilfield group power grid feedback result, judging the property of the feedback result, performing the step S001 when the feedback result is stable, and performing the step S005 when the feedback result is unstable;
and S005, replanning the power grid line of the offshore oilfield group, and performing the step S001.
As a further scheme of the invention: in step S001, the offshore oilfield group includes a plurality of offshore oilfield platforms merged into the offshore oilfield power grid, and the offshore oilfield group equipment is power equipment installed on the offshore oilfield platforms to complete the work of the offshore oilfield platforms.
As a still further scheme of the invention: in step S001, the geographical location information of the equipment in the offshore oilfield group is geographical coordinates of the equipment in the offshore oilfield group, and the information of the power transmission line connecting the equipment in the offshore oilfield group includes the model, length, line loss, and voltage class of the power transmission cable.
As a still further scheme of the invention: in step S002, the power information of the equipment in the offshore oilfield group includes voltage, current, and power data, and the connection port address of the equipment is the physical address of the equipment interface.
As a still further scheme of the invention: in step S003, the method of establishing the topological graph includes using the geographical location of the device in the offshore oilfield group as a topological graph node, designating a connection port address of the corresponding device at the topological graph node, using the power transmission line connected to the device in the offshore oilfield group as a topological graph link, and indicating the power transmission line as information at the topological graph link, where it can be understood that a series of nodes and links between the signal sending node and the signal receiving node are paths of the topological graph.
As a still further scheme of the invention: the topology adopts a star structure, a bus structure, a ring structure or a mesh structure.
As a still further scheme of the invention: the method comprises the steps that a power grid data acquisition end acquires geographic position information of equipment in an offshore oilfield group, power transmission line information of equipment connected with the offshore oilfield group, power information of the equipment in the offshore oilfield group and connection port addresses of the equipment.
As a still further scheme of the invention: and establishing a power grid topological graph of the offshore oilfield group by the power distribution analysis end, performing simulation, and re-planning power grid lines of the offshore oilfield group by the distribution control end.
As a still further scheme of the invention: the electric power distribution analysis end is electrically connected with the offshore oilfield platform, the power grid data acquisition end and the distribution control end, and the power grid data acquisition end is electrically connected with the offshore oilfield platform.
As a still further scheme of the invention: the power distribution analysis end comprises a data receiving module, a topology analysis module, an analog simulation module and a signal sending end, wherein the data receiving module is electrically connected with the topology analysis module, the topology analysis module is electrically connected with the analog simulation module, and the analog simulation module is electrically connected with the signal sending end.
Compared with the prior art, the invention has the beneficial effects that: the invention takes the geographical position of equipment in the offshore oilfield group as a topological graph node, the topological graph node marks the address of a connection port of the corresponding equipment, the power transmission line connected with the equipment in the offshore oilfield group is taken as a topological graph link, and the power transmission line is indicated as information on the topological graph link.
Drawings
Fig. 1 is a flow chart of a power grid topology analysis method based on a shore-based power supply offshore oil field group.
Fig. 2 is a system block diagram of a power grid topology analysis method based on a shore-based power supply offshore oilfield group.
Fig. 3 is a structural block diagram of a power distribution analysis end in a power grid topology analysis method based on a shore-based power supply offshore oilfield group.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-2, in an embodiment of the present invention, a power grid topology analysis method based on a shore-based power supply offshore oilfield group includes the following steps:
s001, acquiring geographical position information of equipment in the offshore oilfield group, and acquiring power transmission line information of the equipment connected with the offshore oilfield group;
s002, acquiring power information of equipment in the offshore oilfield group, and determining connection port addresses of the equipment;
s003, establishing a power grid topological graph of the offshore oilfield group by using the geographical position information and the power transmission line information in the step S001 and the port address in the step S002;
s004, performing power supply and distribution simulation according to the power grid topological diagram in the step S003 to obtain a simulation result, feeding the simulation result back to the offshore oilfield group power grid to obtain an offshore oilfield group power grid feedback result, judging the property of the feedback result, performing the step S001 when the feedback result is stable, and performing the step S005 when the feedback result is unstable;
and S005, replanning the power grid line of the offshore oilfield group, and performing the step S001.
In the embodiment of the present invention, it should be noted that, in step S001, the offshore oilfield group includes a plurality of offshore oilfield platforms 2 merged into an offshore oilfield power grid, and the offshore oilfield group equipment is electric power equipment installed on the offshore oilfield platforms 2 to complete the work of the offshore oilfield platforms 2;
in the embodiment of the present invention, it should be noted that, in step S001, the geographic position information of the equipment in the offshore oilfield group is a geographic coordinate of the equipment in the offshore oilfield group, and the information of the power transmission line connecting the equipment in the offshore oilfield group includes the model, length, line loss, and voltage class of the power transmission cable;
in the embodiment of the present invention, it should be noted that, in step S002, the power information of the equipment in the offshore oilfield group includes voltage, current, and power data, and the connection port address of the equipment is the physical address of the equipment interface;
in the embodiment of the present invention, it should be noted that, in step S003, the method for establishing the topological graph includes using the geographic location of the device in the offshore oilfield group as a topological graph node, designating a connection port address of the corresponding device at the topological graph node, using the power transmission line connected to the device in the offshore oilfield group as a topological graph link, and designating the power transmission line as information at the topological graph link, where it can be understood that a string of nodes and links between a signal sending node and a signal receiving node are a path of the topological graph;
it is further noted that the topology may be a star, bus, ring, or mesh configuration.
In another embodiment of the present invention, it should be noted that the power grid data acquisition end 3 acquires the geographical location information of the devices in the offshore oilfield group, the power transmission line information of the devices connected to the offshore oilfield group, the power information of the devices in the offshore oilfield group, and determines the connection port addresses of the devices, the power distribution analysis end 1 establishes the power grid topological diagram of the offshore oilfield group and performs simulation, and the distribution control end 4 replans the power grid lines of the offshore oilfield group;
it should be further noted that the electric power distribution analysis end is electrically connected to the offshore oilfield platform 2, the power grid data acquisition end 3 and the distribution control end 4, and the power grid data acquisition end 3 is electrically connected to the offshore oilfield platform 2.
Example 2
Referring to fig. 1-2, in an embodiment of the present invention, a power grid topology analysis method based on a shore-based power supply offshore oilfield group includes the following steps:
s001, acquiring geographical position information of equipment in the offshore oilfield group, and acquiring power transmission line information of the equipment connected with the offshore oilfield group;
s002, acquiring power information of equipment in the offshore oilfield group, and determining connection port addresses of the equipment;
s003, establishing a power grid topological graph of the offshore oilfield group by using the geographical position information and the power transmission line information in the step S001 and the port address in the step S002;
s004, performing power supply and distribution simulation according to the power grid topological diagram in the step S003 to obtain a simulation result, feeding the simulation result back to the offshore oilfield group power grid to obtain an offshore oilfield group power grid feedback result, judging the property of the feedback result, performing the step S001 when the feedback result is stable, and performing the step S005 when the feedback result is unstable;
and S005, replanning the power grid line of the offshore oilfield group, and performing the step S001.
In the embodiment of the present invention, it should be noted that, in step S001, the offshore oilfield group includes a plurality of offshore oilfield platforms 2 merged into an offshore oilfield power grid, and the offshore oilfield group equipment is electric power equipment installed on the offshore oilfield platforms 2 to complete the work of the offshore oilfield platforms 2;
in the embodiment of the present invention, it should be noted that, in step S001, the geographic position information of the equipment in the offshore oilfield group is a geographic coordinate of the equipment in the offshore oilfield group, and the information of the power transmission line connecting the equipment in the offshore oilfield group includes the model, length, line loss, and voltage class of the power transmission cable;
in the embodiment of the present invention, it should be noted that, in step S002, the power information of the equipment in the offshore oilfield group includes voltage, current, and power data, and the connection port address of the equipment is the physical address of the equipment interface;
in the embodiment of the present invention, it should be noted that, in step S003, the method for establishing the topological graph includes using the geographic location of the device in the offshore oilfield group as a topological graph node, designating a connection port address of the corresponding device at the topological graph node, using the power transmission line connected to the device in the offshore oilfield group as a topological graph link, and designating the power transmission line as information at the topological graph link, where it can be understood that a string of nodes and links between a signal sending node and a signal receiving node are a path of the topological graph;
it is further noted that the topology may be a star, bus, ring, or mesh configuration.
In another embodiment of the present invention, it should be noted that the power grid data acquisition end 3 acquires the geographical location information of the devices in the offshore oilfield group, the power transmission line information of the devices connected to the offshore oilfield group, the power information of the devices in the offshore oilfield group, and determines the connection port addresses of the devices, the power distribution analysis end 1 establishes the power grid topological diagram of the offshore oilfield group and performs simulation, and the distribution control end 4 replans the power grid lines of the offshore oilfield group;
the present embodiment is different from embodiment 1 in that:
the electric power allotment analysis end and offshore oil field platform 2, electric wire netting data acquisition end 3 and allotment control end 4 electric connection, electric wire netting data acquisition end 3 and offshore oil field platform 2 electric connection.
Example 3
Referring to fig. 1-2, in an embodiment of the present invention, a power grid topology analysis method based on a shore-based power supply offshore oilfield group includes the following steps:
s001, acquiring geographical position information of equipment in the offshore oilfield group, and acquiring power transmission line information of the equipment connected with the offshore oilfield group;
s002, acquiring power information of equipment in the offshore oilfield group, and determining connection port addresses of the equipment;
s003, establishing a power grid topological graph of the offshore oilfield group by using the geographical position information and the power transmission line information in the step S001 and the port address in the step S002;
s004, performing power supply and distribution simulation according to the power grid topological diagram in the step S003 to obtain a simulation result, feeding the simulation result back to the offshore oilfield group power grid to obtain an offshore oilfield group power grid feedback result, judging the property of the feedback result, performing the step S001 when the feedback result is stable, and performing the step S005 when the feedback result is unstable;
and S005, replanning the power grid line of the offshore oilfield group, and performing the step S001.
In the embodiment of the present invention, it should be noted that, in step S001, the offshore oilfield group includes a plurality of offshore oilfield platforms 2 merged into an offshore oilfield power grid, and the offshore oilfield group equipment is electric power equipment installed on the offshore oilfield platforms 2 to complete the work of the offshore oilfield platforms 2;
in the embodiment of the present invention, it should be noted that, in step S001, the geographic position information of the equipment in the offshore oilfield group is a geographic coordinate of the equipment in the offshore oilfield group, and the information of the power transmission line connecting the equipment in the offshore oilfield group includes the model, length, line loss, and voltage class of the power transmission cable;
in the embodiment of the present invention, it should be noted that, in step S002, the power information of the equipment in the offshore oilfield group includes voltage, current, and power data, and the connection port address of the equipment is the physical address of the equipment interface;
in the embodiment of the present invention, it should be noted that, in step S003, the method for establishing the topological graph includes using the geographic location of the device in the offshore oilfield group as a topological graph node, designating a connection port address of the corresponding device at the topological graph node, using the power transmission line connected to the device in the offshore oilfield group as a topological graph link, and designating the power transmission line as information at the topological graph link, where it can be understood that a string of nodes and links between a signal sending node and a signal receiving node are a path of the topological graph;
it is further noted that the topology may be a star, bus, ring, or mesh configuration.
In another embodiment of the present invention, it should be noted that the power grid data acquisition end 3 acquires the geographical location information of the devices in the offshore oilfield group, the power transmission line information of the devices connected to the offshore oilfield group, the power information of the devices in the offshore oilfield group, and determines the connection port addresses of the devices, the power distribution analysis end 1 establishes the power grid topological diagram of the offshore oilfield group and performs simulation, and the distribution control end 4 replans the power grid lines of the offshore oilfield group;
example 2 differs from example 1 in that:
the electric power allotment analysis end and offshore oil field platform 2, electric wire netting data acquisition end 3 and allotment control end 4 electric connection, electric wire netting data acquisition end 3 and offshore oil field platform 2 electric connection.
Referring to fig. 3, the difference between the present embodiment and embodiments 1-2 is:
the power distribution analysis terminal 1 comprises a data receiving module 11, a topology analysis module 12, a simulation module 13 and a signal sending terminal 14, wherein the data receiving module 11 is electrically connected with the topology analysis module 12, the topology analysis module 12 is electrically connected with the simulation module 13, and the simulation module 13 is electrically connected with the signal sending terminal 14.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A power grid topology analysis method based on a shore-based power supply offshore oil field group is characterized by comprising the following steps:
s001, acquiring geographical position information of equipment in the offshore oilfield group, and acquiring power transmission line information of the equipment connected with the offshore oilfield group;
s002, acquiring power information of equipment in the offshore oilfield group, and determining connection port addresses of the equipment;
s003, establishing a power grid topological graph of the offshore oilfield group by using the geographical position information and the power transmission line information in the step S001 and the port address in the step S002;
s004, performing power supply and distribution simulation according to the power grid topological diagram in the step S003 to obtain a simulation result, feeding the simulation result back to the offshore oilfield group power grid to obtain an offshore oilfield group power grid feedback result, judging the property of the feedback result, performing the step S001 when the feedback result is stable, and performing the step S005 when the feedback result is unstable;
and S005, replanning the power grid line of the offshore oilfield group, and performing the step S001.
2. The shore-based power supply offshore oilfield group-based power grid topology analysis method according to claim 1, wherein in step S001, the offshore oilfield group comprises a plurality of offshore oilfield platforms incorporated into an offshore oilfield power grid, and offshore oilfield group equipment is power equipment installed on the offshore oilfield platforms to complete the offshore oilfield platforms.
3. The shore-based power supply offshore oilfield group-based power grid topology analysis method according to claim 2, wherein in step S001, the geographical location information of the equipment in the offshore oilfield group is geographical coordinates of the equipment in the offshore oilfield group, and the information of the power transmission line connecting the equipment in the offshore oilfield group includes the type, length, line loss and voltage class of the power transmission cable.
4. The shore-based power grid topology analysis method for offshore oilfield groups, according to claim 3, wherein in step S002, the power information of the equipment in the offshore oilfield group comprises voltage, current and power data, and the connection port address of the equipment is a physical address of the equipment interface.
5. The power grid topology analysis method based on the shore-based power supply offshore oilfield group as claimed in claim 4, wherein in step S003, the topology map is established by using the geographical location of the equipment in the offshore oilfield group as a topology map node, designating a connection port address of the corresponding equipment at the topology map node, using the power transmission line connected to the equipment in the offshore oilfield group as a topology map link, and indicating the power transmission line as information at the topology map node, it can be understood that a string of nodes and links between a signal sending node and a signal receiving node are paths of the topology map.
6. The shore-based power supply offshore oilfield group-based power grid topology analysis method according to claim 5, wherein the topology map adopts a star-shaped structure, a bus structure, a ring-shaped structure or a mesh structure.
7. The shore-based power supply offshore oilfield group-based power grid topology analysis method according to any one of claims 1 to 6, wherein a power grid data acquisition end acquires geographical position information of equipment in the offshore oilfield group, power transmission line information of equipment connected to the offshore oilfield group, power information of the equipment in the offshore oilfield group, and connection port addresses of the equipment.
8. The shore-based power supply offshore oilfield group-based power grid topology analysis method according to claim 7, wherein a power grid topology graph of the offshore oilfield group is established by the power distribution analysis end, simulation is performed, and the offshore oilfield group power grid line is re-planned by the distribution control end.
9. The shore-based power supply offshore oilfield group-based power grid topology analysis method according to claim 8, wherein the power distribution analysis end is electrically connected with the offshore oilfield platform, the power grid data acquisition end and the distribution control end, and the power grid data acquisition end is electrically connected with the offshore oilfield platform.
10. The shore-based power supply offshore oilfield group-based power grid topology analysis method according to claim 9, wherein the power distribution analysis end comprises a data receiving module, a topology analysis module, an analog-to-digital module and a signal sending end, the data receiving module is electrically connected with the topology analysis module, the topology analysis module is electrically connected with the analog-to-digital module, and the analog-to-digital module is electrically connected with the signal sending end.
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Application publication date: 20210709 |