CN111523827B - Method and system for selecting nodes in inter-provincial transaction proxy mode - Google Patents
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Abstract
The invention provides a method and a system for selecting nodes in an inter-provincial transaction proxy mode, which solve the problems of large optimization calculation scale and low calculation efficiency caused by large difference between an inter-provincial physical network and an intra-provincial network in voltage level, network composition structure, network topology and the like. The method comprises the following steps: optimizing the inter-provincial power grid model into a network simplification model; selecting a node from the network simplification model as a physical node of an inter-provincial agent participating in the market; and calculating the equivalent sensitivity of the physical nodes, and calculating the network safety flow according to the equivalent sensitivity.
Description
Technical Field
The invention relates to the field of electric power automation, in particular to a method and a system for selecting nodes in an inter-provincial transaction agent mode.
Background
The national unified power market deepening design scheme clearly proposes a framework which aims at carrying out maximum optimized configuration on power resources in the national range, and the framework adopts the thought of 'unified market, two-stage operation'. The provincial market is positioned in the national energy strategy, clean energy consumption and large-range optimal allocation of energy resources are promoted, and a resource allocation type market is established.
However, the provincial physical network and the provincial network have great difference in voltage level, network composition structure, network topology and the like, 27 provinces in the operation range of the national network company, about 5500 conventional generator sets of 220kV and above, about 37600 equivalent load nodes and about 10000 key safety sections. If the optimization clearing calculation considering the ATC is carried out on all the power generation and loads on the unified platform, the calculation scale is large, and the calculation efficiency is low.
The problems of clear calculation scale and calculation efficiency of inter-provincial power market optimization under the alternating current-direct current hybrid complex power grid need to be solved.
Disclosure of Invention
In view of this, the embodiments of the present invention provide a method and a system for selecting a node in an inter-provincial transaction proxy mode, which solve the problems of large optimization calculation scale and low calculation efficiency caused by large differences between inter-provincial physical networks and intra-provincial networks in voltage class, network composition structure, network topology, and the like.
An embodiment of the present invention provides a method for selecting a node in an inter-provincial transaction proxy mode, including: optimizing the inter-provincial power grid model into a network simplification model; and selecting the nodes in the network simplification model as physical nodes of the provincial agents participating in the market.
In one embodiment, the method further comprises the following steps: and calculating the equivalent sensitivity of the physical nodes, and calculating the network safety flow according to the equivalent sensitivity.
In one embodiment, the network reduction model includes critical section information, critical node information, and the sensitivity of the physical nodes to critical sections.
In one embodiment, the key profile information maintains all inter-provincial dc profiles, inter-provincial ac profiles, and key profiles that cause intra-provincial congestion in inter-provincial transactions.
In one embodiment, the key node information includes: the end points of the two ends of the direct current connecting line.
In one embodiment, the selecting a node in the network reduction model as a physical node participating in a market as an inter-provincial agent includes: the power purchasing side of the inter-provincial market participated by the inter-provincial trader is equivalent to a plurality of virtual load nodes; according to the key section with blockage in the provinces, each province aggregates loads outside the direct current end points into at least one virtual bus load node in the power grid model; the generator set at the power generation side directly reports to a national power trading center, and node information of each generator set is reserved; or the generator at the power generation side participates in the inter-provincial market through inter-provincial traders, and power generation outside the direct current end point is aggregated into at least one virtual power generation node according to the condition of the blocked key section in the province.
In one embodiment, the participation modes of other node case market members except the selected node are selected: and (3) loading side: various power wholesale users and power selling companies of each province report curve load demand quotation information participating in inter-province market trading to inter-province traders; and aggregated into a bus node. The power generation side: the generator set can participate in the inter-provincial market in two ways, one is that the generator set directly reports the quotation information with curve generation to the national power trading center and keeps the quotation information as an independent bus node; and the other method is to report the curved power generation quotation information participating in the inter-provincial market transaction to the inter-provincial trader and aggregate the information into a bus node.
In one embodiment, calculating the equivalent sensitivity of the physical node comprises: and calculating the sensitivity of the node to the direct current tie line and the sensitivity of the node to the alternating current tie line.
In one embodiment, the computing node sensitivity to a dc link comprises: according to the relation between a node voltage to each node injection power sensitivity matrix formula and a branch power to each node injection power sensitivity matrix and a Jacobian matrix formula, the sensitivity distribution factor of the transmitting end node is 1, the sensitivity distribution factor of the receiving end node is-1, and the sensitivity distribution factors of the rest of the nodes which are not connected with the direct current connecting line are 0.
In one embodiment, the Jacobian matrix formula is obtained by carrying out deterministic load flow calculation of the whole network under a reference state on the system according to a Newton method.
In one embodiment, the computing node sensitivity to crossties comprises: calculating the end points at the two ends of the direct current tie line and the sensitivity of the generator set nodes directly participating in the transaction to the alternating current tie line; calculating the sensitivity of the electricity purchasing side virtual load node to the alternating current tie line; and calculating the sensitivity of the virtual power generation node on the power generation side to the AC tie line.
A node selection system in an inter-provincial transaction agent mode is applied to a power system and comprises:
the optimization module is used for optimizing the inter-provincial power grid model into a network simplification model;
and the node selection module is used for selecting the nodes from the network simplification model as physical nodes of the provincial agents participating in the market.
In one embodiment, the method further comprises: and the network safety load flow calculation module is used for calculating the equivalent sensitivity of the physical nodes and calculating the network safety load flow according to the equivalent sensitivity.
A node selection system in an inter-provincial transaction agent mode is applied to a power system, and the system comprises: a processor and a memory coupled to the processor, the memory storing a computer program which, when executed by the processor, performs the method steps of the method for node selection in the inter-provincial transaction proxy mode.
According to the method and the system for selecting the nodes in the inter-provincial transaction proxy mode, provided by the embodiment of the invention, an inter-provincial power grid model is optimized into a network simplification model; selecting a node from the network simplification model as a physical node of an inter-provincial agent participating in the market; and calculating the equivalent sensitivity of the physical nodes, and calculating the network safety flow according to the equivalent sensitivity. The problems that the optimization calculation scale is large and the calculation efficiency is low due to the fact that the voltage level, the network composition structure, the network topology and the like of an inter-provincial physical network and an intra-provincial network are greatly different at present are solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart illustrating a node selection method in an inter-provincial transaction proxy mode according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a node selection method in an inter-provincial transaction proxy mode according to another embodiment of the present invention;
fig. 3 is a block diagram of a node selection system in an inter-provincial transaction proxy mode according to an embodiment of the present invention;
fig. 4 is a block diagram of a node selection system in an inter-provincial transaction proxy mode according to another embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
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.
Fig. 1 is a flowchart illustrating a node selection method in an inter-provincial transaction proxy mode according to an embodiment of the present invention.
As shown in fig. 1, the method for selecting a node in the inter-provincial transaction proxy mode includes:
step 01: optimizing the inter-provincial power grid model into a network simplification model; the physical network simplification model for the inter-provincial transaction comprises three types of data, namely key section information, key node information and node sensitivity to key sections. The key sections reserve all inter-provincial direct current sections and inter-provincial alternating current sections, and inter-provincial transactions cause intra-provincial blocked key sections, the key nodes comprise end points at two ends of a direct current connecting line, and the rest nodes are determined according to the participation mode of market members: the power purchasing side participates in the inter-provincial market through inter-provincial traders, so that loads outside the direct current end points are aggregated into one or a plurality of virtual load nodes by each province according to the condition of key sections which are easy to block in the province; if the generator is directly reported to a national-level electric power trading center, node information of each generator set is reserved, and if an inter-provincial trader participates in an inter-provincial market, the power generation outside a direct current endpoint is aggregated into one or a plurality of virtual power generation nodes according to the condition of key sections which are easy to block in the provincial.
Step 02: selecting a node from the network simplification model as a physical node of an inter-provincial agent participating in the market; the power purchasing side participates in the inter-provincial market through inter-provincial traders, so that loads outside the direct current end points are aggregated into one or a plurality of virtual load nodes by each province according to the condition of key sections which are easy to block in the province; if the generator is directly reported to a national-level electric power trading center, node information of each generator set is reserved, and if an inter-provincial trader participates in an inter-provincial market, the power generation outside a direct current endpoint is aggregated into one or a plurality of virtual power generation nodes according to the condition of key sections which are easy to block in the provincial. In the unified power market scheme, various power wholesale users and power selling companies of each province can report the curve load demand quotation information participating in the inter-province market transaction to inter-province traders. The generator set can participate in the inter-provincial market in two ways, one is that the generator set directly reports the quotation information with curve generation to the national-level electric power trading center; and the other is to report the curved power generation quotation information participating in the inter-provincial market trading to the inter-provincial trader. And the inter-provincial trader declares inter-provincial power generation quotation and power purchase requirements to the national power trading center based on the power generation quotation information, the load demand quotation information and the new energy output and load demand prediction condition.
Step 03: and calculating the equivalent sensitivity of the physical nodes, and calculating the network safety flow according to the equivalent sensitivity. By calculating the equivalent sensitivity of the physical nodes and calculating the network security trend according to the equivalent sensitivity, a simplified physical network model is provided for inter-provincial transactions, and the inter-provincial optimized clearing efficiency can be greatly improved.
Optimizing an inter-provincial power grid model into a network simplification model; selecting a node from the network simplification model as a physical node of an inter-provincial agent participating in the market; and calculating the equivalent sensitivity of the physical nodes, and calculating the network safety flow according to the equivalent sensitivity. The problems that the optimization calculation scale is large and the calculation efficiency is low due to the fact that the voltage level, the network composition structure, the network topology and the like of an inter-provincial physical network and an intra-provincial network are greatly different at present are solved. According to the inter-provincial transaction optimization model, through the node selection method and the node equivalent sensitivity calculation method in the inter-provincial transaction agent mode, equivalent key information of the inter-provincial power grid model is reserved, redundant information is eliminated, network complexity is reduced, a dimension-reduced physical network model can be provided for the inter-provincial transaction optimization model covering the extra-high voltage alternating current-direct current hybrid power grid, and inter-provincial optimization clearing efficiency is improved.
It can be understood that the network simplification model includes key section information, key node information and sensitivity of the physical node to the key section, the network simplification model includes but not only the above information and data, etc., and what kind of data the network simplification model specifically includes can be set according to actual requirements, and the invention does not limit the specific information and data included in the network simplification model.
It can also be understood that the key section information retains all inter-provincial direct current sections, inter-provincial alternating current sections and inter-provincial transaction-caused intra-provincial blocked key sections, the key section information includes but not only the above information, and what kind of information the key section information specifically includes can be set according to actual requirements.
It is also understood that the key node information includes: the end points at the two ends of the direct current connecting line, the key node information includes but not only the above information, and what kind of information the key node information specifically includes can be set according to the actual situation.
Fig. 2 is a flowchart illustrating a node selection method in an inter-provincial transaction proxy mode according to another embodiment of the present invention.
As shown in fig. 2, selecting a node in the network reduction model as a physical node participating in the market of an inter-provincial agent includes:
step 021: the electricity purchasing side participates in the inter-provincial market through inter-provincial traders;
step 022: according to the key section with blockage in the province, each province aggregates loads outside the direct current end points into at least one virtual load node; the power purchasing side participates in the inter-provincial market through inter-provincial traders, so that loads outside the direct current end points are aggregated into one or a plurality of virtual load nodes by each province according to the situation of key sections which are easy to block in the province.
Step 023: the generator at the power generation side directly reports to a national power trading center, and node information of each generator set is reserved; and if the generator is directly reported to the national-level electric power trading center by the power generation side, the node information of each generator set is reserved. Or
And 024: and the generator at the power generation side participates in the inter-provincial market through inter-provincial traders, and power generation outside the direct current end point is aggregated into at least one virtual power generation node according to the condition of the blocked key section in the province. If the inter-provincial traders participate in the inter-provincial market, the power generation outside the direct current end points is aggregated into one or a plurality of virtual power generation nodes according to the situation of key sections which are easy to block in the province.
In an embodiment of the present invention, the nodes other than the selected node are selected according to the participation mode of the market members.
In an embodiment of the present invention, calculating the equivalent sensitivity of the physical node includes: and calculating the sensitivity of the node to the direct current tie line and the sensitivity of the node to the alternating current tie line.
In an embodiment of the present invention, calculating the sensitivity of a node to a dc link includes: according to the operation characteristics of the direct-current line, obtaining that direct-current transmission power is only related to a transmitting end node and a receiving end node which are connected with the direct-current connecting line, obtaining that the sensitivity distribution factor of the transmitting end node is 1, the sensitivity distribution factor of the receiving end node is-1 and the sensitivity distribution factors of the rest nodes which are not connected with the direct-current connecting line are 0 according to a node voltage to each node injection power sensitivity matrix formula and the relation between a branch power to each node injection power sensitivity matrix and a Jacobi matrix formula.
First, with cattlePerforming deterministic load flow calculation of the whole network under the reference state on the system by the pause method to obtain a Jacobian matrix J0As shown in equation (1).
Node voltage versus node injected power sensitivity matrix S0As shown in formula (2), the branch power injects a power sensitivity matrix T into each node0As shown in equation (3).
S0＝J0 -1 (2)
In the formula (I), the compound is shown in the specification,
is the partial derivative of the i-j line power flow to the voltage variable of the k node.
Sensitivity of each node to the dc link:
according to the operation characteristics of the direct current line, the direct current transmission power is only related to the transmitting end node s and the receiving end node b which are connected with the DC, and the sensitivity distribution factor of the direct current transmission power is
1 and-1 respectively, and the rest sensitivity distribution factors which are not connected with the same are all 0.
In one embodiment of the invention, a Jacobian matrix formula is obtained by carrying out deterministic load flow calculation of the whole network under a reference state on the system according to a Newton method.
In an embodiment of the present invention, calculating the sensitivity of the node to the ac tie line includes:
calculating the end points at the two ends of the direct current tie line and the sensitivity of the generator set nodes directly participating in the transaction to the alternating current tie line; send-out terminal node s and receiving terminal node b connected to DC link DC, and generator set n directly participating in transaction
Calculated according to equation (3), respectively, as shown in equation (4) -equation (6):
calculating the sensitivity of the electricity purchasing side virtual load node to the alternating current tie line; all bus loads except the direct current end point on the electricity purchasing side are aggregated into a virtual load node, and the virtual load node V has equivalent sensitivity to each line tide
Can be calculated from equation (7).
In the formula (I), the compound is shown in the specification,
and calculating the weight value of the influence of each bus load v on the load flow of the line i-j by adopting a weighted average mode, and calculating the value by a formula (8).
In the formula (I), the compound is shown in the specification,
is the sensitivity factor of each bus load v to the i-j line current.
Calculating the sensitivity of the virtual power generation node at the power generation side to the AC interconnection line, and aggregating the power generation units except the DC end point at the power generation side into a virtual power generation node as described above, so that the equivalent sensitivity of the virtual power generation node G to the branch tide
Can be calculated from equation (10).
In the formula (I), the compound is shown in the specification,
for the sensitivity factor of each bus generating node g to the i-j line current,
and (4) the weight of the influence of each bus generating node g on the power flow of the line i-j.
In an embodiment of the present invention, a method for calculating node equivalent sensitivity includes:
carrying out total network deterministic load flow calculation on the system under the reference state by using a Newton method to obtain a Jacobian matrix J0As shown in equation (1).
Node voltage versus node injected power sensitivity matrix S0As shown in formula (2), the branch power injects a power sensitivity matrix T into each node0As shown in equation (3).
S0＝J0 -1 (2)
In the formula (I), the compound is shown in the specification,
is the partial derivative of the i-j line power flow to the voltage variable of the k node.
(1) Sensitivity of each node to a DC link
According to the operation characteristics of the direct current line, the direct current transmission power is only related to the transmitting end node s and the receiving end node b which are connected with the DC, and the sensitivity distribution factor of the direct current transmission power is
1 and-1 respectively, and the rest sensitivity distribution factors which are not connected with the same are all 0.
(2) Sensitivity of each node to an AC line
Firstly, the end points at the two ends of the direct current junctor and the generator set nodes directly participating in the transaction have sensitivity to the alternating current junctor
Send-out terminal node s and receiving terminal node b connected to DC link DC, and generator set n directly participating in transaction
Calculated according to the formula (3), respectively, as shown in the formula (4) -formula (6).
Sensitivity of virtual load node on electricity purchasing side to AC tie line
All bus loads except the direct current end point on the electricity purchasing side are aggregated into a virtual load node, and the virtual load node V has equivalent sensitivity to each line tide
Can be calculated from equation (7).
In the formula (I), the compound is shown in the specification,
and calculating the weight value of the influence of each bus load v on the load flow of the line i-j by adopting a weighted average mode, and calculating the value by a formula (8).
In the formula (I), the compound is shown in the specification,
is the sensitivity factor of each bus load v to the i-j line current.
Third, the sensitivity of the virtual power generation node at the power generation side to the AC tie line
As described above, the power generation sideAll the generator sets except the direct-current end point are aggregated into a virtual power generation node, and the virtual power generation node G has equivalent sensitivity to the branch tide
Can be calculated from equation (10).
In the formula (I), the compound is shown in the specification,
for the sensitivity factor of each bus generating node g to the i-j line current,
and (4) the weight of the influence of each bus generating node g on the power flow of the line i-j.
In another embodiment of the present invention, a node selection system in an inter-provincial transaction proxy mode is provided, which is applied to a power system, and includes:
the optimization module is used for optimizing the inter-provincial power grid model into a network simplification model;
the node selection module is used for selecting nodes from the network simplification model as physical nodes of inter-provincial agents participating in the market;
and the network safety load flow calculation module is used for calculating the equivalent sensitivity of the physical nodes and calculating the network safety load flow according to the equivalent sensitivity.
In another embodiment of the present invention, a node selection system in an inter-provincial transaction proxy mode is provided, which is applied to a power system, and the system includes: a processor and a memory coupled to the processor, the memory storing a computer program which, when executed by the processor, performs the method steps of the method for node selection in the inter-provincial transaction proxy mode.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A node selection method in an inter-provincial transaction proxy mode is characterized by comprising the following steps:
optimizing the inter-provincial power grid model into a network simplification model;
selecting a node from the network simplification model as a physical node of an inter-provincial agent participating in the market;
the network simplification model comprises key section information, key node information and the sensitivity of the physical node to the key section;
the key section information reserves all inter-provincial direct current sections, inter-provincial alternating current sections and key sections with intra-provincial blockage caused by inter-provincial transactions;
the selecting the node in the network simplification model as a physical node of the provincial agent participating in the market comprises the following steps:
the power purchasing side of the inter-provincial market participated by the inter-provincial trader is equivalent to a plurality of virtual load nodes;
according to the key section with blockage in the provinces, each province aggregates loads outside the direct current end points into at least one virtual bus load node in the power grid model;
the generator set at the power generation side reports to a national power trading center, and node information of each generator set is reserved; or
And the generator at the power generation side participates in the inter-provincial market through inter-provincial traders, and power generation outside the direct current end point is aggregated into at least one virtual power generation node according to the condition of the blocked key section in the province.
2. The method of claim 1, further comprising the steps of:
calculating an equivalent sensitivity of the physical node.
3. The method of claim 1, wherein the key node information comprises: the end points of the two ends of the direct current connecting line.
4. The method of claim 1, wherein the nodes other than the selected node are selected according to a market membership participation method.
5. The method of selecting a node in inter-provincial transaction agency mode as claimed in claim 2, wherein calculating the equivalent sensitivity of the physical node comprises: and calculating the sensitivity of the node to the direct current tie line and the sensitivity of the node to the alternating current tie line.
6. The method of selecting a node in an inter-provincial transaction agency mode as claimed in claim 5, wherein the calculating the sensitivity of the node to the DC link includes:
according to the relation between a node voltage to each node injection power sensitivity matrix formula and a branch power to each node injection power sensitivity matrix and a Jacobian matrix formula, the sensitivity distribution factor of the transmitting end node is 1, the sensitivity distribution factor of the receiving end node is-1, and the sensitivity distribution factors of the rest of the nodes which are not connected with the direct current connecting line are 0.
7. The method of selecting a node in an inter-provincial transaction agency mode as claimed in claim 5, wherein the calculating of the sensitivity of the node to the alternate current tie comprises:
calculating the end points at the two ends of the direct current tie line and the sensitivity of the generator set nodes directly participating in the transaction to the alternating current tie line;
calculating the sensitivity of the electricity purchasing side virtual load node to the alternating current tie line;
and calculating the sensitivity of the virtual power generation node on the power generation side to the AC tie line.
8. A node selection system in an inter-provincial transaction agent mode is applied to a power system and is characterized by comprising:
the optimization module is used for optimizing the inter-provincial power grid model into a network simplification model;
the node selection module is used for selecting nodes from the network simplification model as physical nodes of inter-provincial agents participating in the market;
the network simplification model comprises key section information, key node information and the sensitivity of the physical node to the key section;
the key section information reserves all inter-provincial direct current sections, inter-provincial alternating current sections and key sections with intra-provincial blockage caused by inter-provincial transactions;
the selecting the node in the network simplification model as a physical node of the provincial agent participating in the market comprises the following steps:
the power purchasing side of the inter-provincial market participated by the inter-provincial trader is equivalent to a plurality of virtual load nodes;
according to the key section with blockage in the provinces, each province aggregates loads outside the direct current end points into at least one virtual bus load node in the power grid model;
the generator set at the power generation side reports to a national power trading center, and node information of each generator set is reserved; or
And the generator at the power generation side participates in the inter-provincial market through inter-provincial traders, and power generation outside the direct current end point is aggregated into at least one virtual power generation node according to the condition of the blocked key section in the province.
9. The system of claim 8, further comprising:
and the network safety load flow calculation module is used for calculating the equivalent sensitivity of the physical nodes and calculating the network safety load flow according to the equivalent sensitivity.
10. A node selection system in an inter-provincial transaction agent mode is applied to a power system, and is characterized by comprising: a processor and a memory coupled to the processor, the memory storing a computer program which, when executed by the processor, performs the method steps of the method of node selection in an inter-provincial transaction proxy mode according to any one of claims 1 to 7.
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| PCT/CN2020/123681 WO2021227373A1 (en) | 2020-05-13 | 2020-10-26 | Node selection method and system under inter-province transaction agent mode, and storage medium |
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