CN101751645A - Method for searching and determining trading channel in three-class power market - Google Patents
Method for searching and determining trading channel in three-class power market Download PDFInfo
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Abstract
The invention relates to a method for searching and determining a trading channel in a three-class power market, which comprises the following steps: firstly establishing a three-class power market power trading network topological relation based on an established physical network topological relation; adding a region taken as a virtual node into a physical network topological relation network and simultaneously taking the virtual node and a physical network branch province node as a node in a network model; adding trans-regional and trans-provincial connecting lines into a physical network and determining available power transmission capability, power transmission expense and network loss of each connecting line, wherein an initial node and a terminal node of each connecting line adopts the province node; adding a virtual equivalent connecting line between the region and the province node subordinate to the region and numbering all the connecting lines; arranging a connection or the off state of the connecting line according to an electric network operation mode; searching an available trading channel for each pair of initial and terminal nodes to form a trading channel assembly; positioning market participants participating power trading to a corresponding node in the network model; and respectively determining an optimal available trading channel between both trading parties and finishing matching according to trading rules.
Description
Technical field
The present invention relates to a kind of search and establishment method to trading channel when being used for each market member of electricity market platform and participating in electricity transaction.
Background technology
In order to adapt with market economy system of China and existing power scheduling mechanism, take all factors into consideration the layout of the energy and electricity needs, existing administration, tax and financial system, power supply architecture, part throttle characteristics, cost of electricity-generating, factors such as power consumption efficiency difference, with the Scientific Outlook on Development is guidance, to obtain maximum reform benefit with minimum reform cost is target, respect the objective law of market organic growth, take into account the interests of each main market players, guarantee the concertedness that electricity transaction and power grid security are checked, and according to the most optimum distribution of resources space of outwardness, by the in-depth power system reform, build layering, competitive orderly, coordinate operation provincial, region class and national three-class power market system.
State Grid market is the transaction platform of realizing that the nationwide electric power resource is distributed rationally.With regional power grid company, province electrical network company and part big power station is transaction agent, be responsible for organizing the concentrated trade at competitive price of transregional medium-term and long-term contract, long a middle or short term bilateral transaction by State Grid market, interregional emergency condition and emergency duty are supported assistant service; By networking with surrounding countries, carry out the electric power foreign trade, realize the internationalization that electric power resource utilizes.
The zone electricity market is a transaction platform of realizing that electric power resource is distributed rationally in the zone.In regional electricity market, set up zone year and monthly brining together and bilateral transaction market; Be responsible for participating in directly in the tissue regions unit and the province electrical network company that bid in the zone and purchase the sale of electricity transaction; Foundation to be economizing to purchasing the regional spot price equilibrium market of sale of electricity main body, satisfy economize between under the prerequisite of transmission line capability, realize the generate electricity advolution of marginal electricity price of each province; The subdispatch trade center is responsible for the safety check of interconnection between province.
Provincial electricity market is the basis of country and regional electricity market, mainly carries out the bilateral transaction and the concentrated trade at competitive price from stock of the non-competing electric weight annual contract of power plant inside the province.Provincial electricity market can be simultaneously as sale of electricity main body (organizing residue generating resource inside the province) in the mode of agency by agreement with purchase electric main body, freely selects to participate in the transaction of national monthly contract market or regional year, monthly contract market; And participate in the bilateral transaction of national spot market directly.For economic development and the bigger province of the horizontal difference of electricity price in interconnection weakness, the zone between economizing, the contract market of unit is bidded and the spot market but independent body bids.
In the three-class power market system, regional power grid company, province electrical network company and directly readjust the distribution the market member as equality in State Grid market of electric enterprise and participate in all kinds of electricity transactions.In electricity transaction, need to determine each market member's network topology relation, promptly set up the electricity transaction network model, determine the trading channel set between each member, and in order to available transmission line capability (congestion situations) and definite transmission of electricity expense of check analysis trading channel.
Before setting up three-class power market, do not exist between the vanilla transaction main body economically subordinate relation and the relation of inclusion in geographic position, corresponding, in the existing electricity transaction search channels method, directly the physical location equivalence with the transaction agent place is a nexus, to determine trading channel.What promptly set up is that physical network topology concerns the networking, sets up the electricity transaction network model according to the transportion wire road between transaction agent place equivalent network point and the nexus in physical model.In certain regional electricity market, each province's grid company is the transaction agent (market member) in the market in the zone, with the province equivalence at grid company place, each province is a nexus, interconnection is the trading channel between each market member between province, can carry out the verification of available transmission line capability and determining of transmission of electricity expense.
And on the State Grid's marketplace platform in the three-class power market system, regional power grid company and province electrical network company are simultaneously as the market member in the State Grid market of equality, can't determine that in physical model the network between them connects, and regional power grid company and regional introspection grid company can not be handled as an equivalent point at the network equivalent time, if use existing method, can't determine regional power grid company and the trading channel of economizing electrical network company.Therefore, when setting up the Search Transactions passage, if the province of adopting grid company place, each province is as a network equivalent point, all initial, methods that terminating point is connected to the province transregional, circuit transprovincially then can't be set up the trading channel between regional power grid company and the province electrical network company.As, the trading channel that may exist between northeast grid company and the Liaoning Power can't be determined.
Summary of the invention
The purpose of this invention is to provide a kind of three-class power marketing search channels and establishment method, it is the situation that has subordinate relation and physical location relation of inclusion at market member in the three-class power market, realize the search of correct electricity transaction passage, thereby establish most economical optimized electricity transaction passage.
For achieving the above object, the present invention takes following design proposal:
A kind of search and establishment method of three-class power marketing passage, its method step is as follows:
1) at first on the basis of the physical network topology relation of having set up, set up three-class power market power trading network topology relation:
A) add the zone to physical network topology as dummy node and concern in the network system, with physical network branch road province node simultaneously as the node in the network model, wherein, the province node is the child node of region node, and all nodes are numbered;
B) with transregional, transprovincially interconnection adds in the physical network, it is initial, terminal node is the province node, and determines available transmission line capability, transmission of electricity expense and the via net loss of each interconnection according to the operation of power networks situation;
C) add the virtual equivalent interconnection between Area Node and the province node under it, think that the available transmission line capability of this interconnection is infinity, the transmission of electricity expense is zero, and via net loss is zone leveling network loss (being the via net loss of Area Node); All interconnections are numbered;
D) connection or the off-state of interconnection are set according to power system operating mode, wherein, the state of virtual interconnection is always " connection ";
2) to each to playing, end node searching available transaction passage, respectively to the path between them search for, record, form the trading channel set; It should be noted that: because electric power transfer has directivity, interconnection has forward and reverse available transmission capacities limits condition, and (i is j) with (j is that different start-stop node is right i).
3) trading channel with each bar connected state identifies start node, contact branch road, contact branch road transmission of electricity direction, transhipment node, the terminal node that comprises;
4) calculate the transmission of electricity expense of this passage according to respectively getting in touch with branch road transmission of electricity expense and the transmission of electricity expense of transhipment node in the trading channel of each bar connected state respectively;
5) according to respectively getting in touch with the via net loss that the via net loss of branch network loss with the transhipment node calculates this trading channel in the trading channel of each connected state;
6) respectively get in touch with the minimum value of available transmission line capability of branch road and transhipment node in the trading channel of connected state as the initial available transmission line capability of this trading channel;
7) the market member that will participate in electricity transaction is provided with according to its character, navigates to node corresponding in the network model; Thereby respectively participated in the trading channel set between the market member of electricity transaction;
When 8) each transaction is mated, determine optimum trading channel according to trading rules, the match is successful, and the trading channel transmission line capability that this transaction relates to is upgraded in the back, thinks that when certain trading channel transmission line capability is 0 this passage gets clogged, and state becomes unavailable.
This method is applicable to the organizer of national three-class power marketing.
The present invention relates to the search and the establishment method of trading channel when each market member participates in electricity transaction in the three-class power marketplace platform, and the application of this method in the electricity transaction process.By searching method of the present invention, can find out the trading channel set between each market member clear, clearly, carry out the trading channel occlusion analysis to judge the availability of passage, the transmission of electricity expense of calculating trading channel is to obtain optimal channel.This method is applicable to the State Grid market in the three-class power market system, also applicable to regional electricity market and provincial electricity market.
The search and the establishment method of three-class power marketing passage of the present invention can be realized by computer equipment, also can be developed as independently electricity transaction system, finish key step automatically by means of this electricity transaction system.
Advantage of the present invention is: a good transaction platform can be provided for the electricity transaction in three-class power market, satisfy provincial, the region class of competitive orderly, coordinate operation and the demand of national three-class power market system, be beneficial to electric power resource and utilize international realization.
Description of drawings
Fig. 1 is the present invention's one example electricity market physical topology graph of a relation
Fig. 2 is the present invention's one example electricity transaction network topology graph of a relation
Fig. 3 is the present invention's one example trading channel presentation graphs
Embodiment
Three-class power marketing search channels of the present invention and establishment method are at first directly revised physical network topology by adding dummy node and equivalent interconnection, or can be according to behind the further modification and perfection of existing physical network topology pattern, set up the network model that is fit to three-class power market again, thus correct Search Transactions passage.
When carrying out electricity transaction in the electricity market, each market member purchases the sale of electricity quotation according to releasing news before concluding the business and declares, login authentication information when system declares according to the electricity transaction user is determined the market member of transaction, forms to purchase set of electricity side and the set of sale of electricity side.The coupling of concluding the business successively sort according to market rules to purchasing sale of electricity market member set during electricity transaction.
When regional power grid company participated in electricity transaction as market member (purchasing electric side or sale of electricity side) with province electrical network company in electricity market, trade mode generally had following five kinds of situations:
1). conclude the business between province: all situations of concluding the business between transaction and trans-regional province between the inclusion region introspection, concern the set of Search Transactions passage according to the above-mentioned electricity transaction network topology of having set up, the not influence of consideration of regional earlier, can think that transaction is without the zone between province, directly search transregional, the interconnection transprovincially of interdepartmental reality, obtain trading channel.If through transshipment area (zone of nontransaction object), need to pay the transmission of electricity expense in turnover zone in the trading channel to transshipment area.
2). economize and the one's respective area transaction: trading channel is the virtual interconnection that adds in the three-class power market network model, and its available transmission line capability is infinitely great, and the transmission of electricity expense is zero, and via net loss is zone leveling network loss (being the via net loss of Area Node).
3). economize and the exterior domain transaction: the start node of trading channel is this province node, and terminal node is an exterior domain inner boundary province node, and passage no longer passes through other province node of exterior domain.If through transshipment area (zone of nontransaction object), need to pay the transmission of electricity expense in turnover zone in the trading channel to transshipment area.
4). zone and other provinces transaction: the start node of trading channel is this inner boundary province, zone node, and terminal node is an exterior domain province node, and passage is no longer through other province node of one's respective area.If through transshipment area (zone of nontransaction object), need to pay the transmission of electricity expense in turnover zone in the trading channel to transshipment area.
5). zone and regional transaction: the start node of trading channel is this inner boundary province, zone node, and terminal node is an exterior domain inner boundary province node, and passage is no longer through one's respective area and other province node of exterior domain.If through transshipment area (zone of nontransaction object), need to pay the transmission of electricity expense in turnover zone in the transaction path to transshipment area.
No matter under which kind of trade mode, respectively purchase, all exist many available transaction passages between the sale of electricity side, the via net loss of every trading channel and transmission of electricity expense can calculate according to the via net loss and the transmission of electricity expense of interconnection, transhipment node (comprising transhipment province and transshipment area) in this passage.Be used in and select optimum (most economical) passage in the available channel.
In above various trade modes, the initial available transmission line capability of every trading channel all can calculate according to the available transmission line capability of interconnection in the passage and transhipment node (comprising transhipment province and transshipment area).According to upgrading the trading channel transmission line capability that this transaction relates to after trading rules the match is successful each transaction, when being 0, certain trading channel transmission line capability thinks that this passage gets clogged, state becomes unavailable.
But with State Grid's market tissue issue Transaction Information is example, and three-class power marketing search channels of the present invention and establishment method key step are as follows:
1. the zone is added in the system as dummy node, with the province node simultaneously as the node in the network model, all nodes are numbered.And internodal subordinate relation is set according to the geographic position relation of inclusion, promptly the province node is the child node of region node.
2. according to actual physical electrical network annexation, with transregional, transprovincially interconnection adds in the network, it is initial, terminal node is the province node, and determines available transmission line capability, transmission of electricity expense and the via net loss of interconnection according to actual electric network ruuning situation.
3. add the virtual equivalent interconnection between Area Node and the province node under it, think that the available transmission line capability of this interconnection is infinity, the transmission of electricity expense is zero, and via net loss is zone leveling network loss (being the via net loss of Area Node).
4. all interconnections are numbered.
5. the state (connecting or disconnection) of interconnection is set according to power system operating mode.Wherein, the state of virtual interconnection is always " connection ".
6. set up the electricity transaction network topology relation that comprises regional dummy node by above step, search for the available transaction passage between each node on this basis, form the trading channel set.
A) to each to playing, end node searching available transaction passage.Wherein because electric power transfer has directivity, and interconnection has forward and reverse available transmission capacities limits condition, (I, j) with (j be that different start-stop node is right I), needs respectively to the path between them search for, record.
B) trading channel of each bar connected state identifies start node, interconnection, interconnection transmission of electricity direction, transhipment node (comprising transhipment province and transshipment area), the terminal node that comprises.
C) set of the trading channel between province node and the province node can directly initial terminal node search obtains according to interconnection.
D) trading channel between the node of province is the virtual interconnection that is added in regional dummy node and the one's respective area.
E) in the set of the trading channel between regional dummy node and the exterior domain province node, the start node of trading channel is this inner boundary province, zone node, and terminal node is an exterior domain province node, and passage is no longer through other province node of one's respective area.
F) in the set of the trading channel between province node and the exterior domain dummy node, the start node of trading channel is this province node, and terminal node is this exterior domain inner boundary province node, and passage no longer passes through other province node of this exterior domain.
G) set of the trading channel between regional dummy node and the exterior domain dummy node is the trading channel between each province, border node in two zones.
H) according to respectively getting in touch with the calculating transmission of electricity expense of branch road transmission of electricity expense in the passage with the transmission of electricity expense calculating trading channel of transhipment node.
I) respectively get in touch with the minimum value of available transmission line capability of branch road and transhipment node in the passage as the available transmission line capability of trading channel (considering the available transmission line capabilities of different transmission of electricity directions).
J) according to respectively getting in touch with the via net loss that the via net loss of branch network loss with the transhipment node calculates trading channel in the passage.
7. the market member that will participate in electricity transaction is provided with according to its character, navigate to the node in the corresponding network model, as: province electrical network company's place node is the corresponding province node in the network topology, and regional power grid company place node is the respective regions node in the network topology.
So far, obtain the set of the trading channel between all nodes in the power market transaction network.Which kind of type the market member who no matter participates in electricity transaction belongs to, and all can navigate to node in this network model, inquires all possible transaction path between each market member in the passage set, carries out the occlusion analysis and the optimal selection of trading channel.
The present invention is applicable to that the market member exists the process of setting up of the electricity transaction network model between the various relations and the searching method of trading channel in the three-class power market system, comprise there is subordinate relation between the member of market or do not have subordinate relation that the place physical location has relation of inclusion or do not have various situations such as relation of inclusion.
The inventive method is handled available transmission line capability, via net loss and the transmission of electricity expense of dummy node when generating the trading channel set, can be used for occlusion analysis and passage optimal selection in the process of exchange.
Set forth the searching method of trading channel in the three-class power market below in conjunction with specific embodiment (participating in State Grid's market electricity transaction with nine province electrical network companies of three regional power grid companies is example) giving an explaination property example.
Embodiment 1: trading channel search between province
Electricity market physical network topology relation as shown in Figure 1.But electricity transaction central tissue issue Transaction Information.
With node a1 in province among Fig. 1 and province node b1 is example, and electricity transaction search channels concrete grammar step therebetween is as follows:
1) at first on the basis of the physical network topology relation of having set up, set up three-class power market power trading network topology relation:
As shown in Figure 1, comprise three zones in the electricity market: regional A, area B, zone C, a1, a2, a3 are three provinces in the regional A, and b1, b2, b3 are three provinces in the area B, and c1, c2, c3 are three provinces in the zone C.
A) according to the inventive method, at the Search Transactions passage, when structure electricity market network topology concerns, Adding Area dummy node, and the set membership of setting area node and province node.As shown in Figure 2, A, B, the regional dummy node of C, province node a1, a2, a3 for adding; B1, b2, b3; C1, c2, c3 are respectively the child node of region node A, B, C;
B) with transregional, transprovincially interconnection adds in the physical network contact branch road, fine line (L1, L2, L3, L4, L5, L6, L7, L8 L9) be interconnection between interior each province, zone; (L12 L13) is interregional interconnection to heavy line for L10, L11, and terminal is a corresponding province node, and interconnection forward transmission of electricity direction is shown in the circuit direction of arrow among the figure.The state of all contact branch roads (line) is connection.
C) between Area Node and the province node under it, add the virtual equivalent interconnection, virtual interconnection between Adding Area and province, the one's respective area node, dotted line (L14, L15, L16, L17, L18, L19, L20, L21, L22) virtual interconnection (contact branch road) for adding between each regional dummy node and each province, the one's respective area node.The available transmission line capability of setting these interconnections is for infinitely great, and the transmission of electricity expense is zero; All contact branch roads are numbered.
D) state of set that all are transregional, getting in touch with branch road (line) transprovincially is connection, and wherein, the state of virtual tributary is always " connection ";
According to above step, form electricity transaction network topology relation, as shown in Figure 2.Each interconnection incidence relation and transmission of electricity parameter see Table 1 in the network topology.
Table 1 electricity transaction network topology relation
| Interconnection | Start node | Terminal node | Connection status | Via net loss | The transmission of electricity expense (unit/MWh) | Forward can be used transmission line capability (MW) | Reverse available transmission line capability (MW) |
| ??L1 | ??a1 | ??a2 | ??ON | ??0.008 | ??98 | ??1200 | ??1200 |
| ??L2 | ??a1 | ??a3 | ??ON | ??0.007 | ??89 | ??1600 | ??1600 |
| ??L3 | ??a2 | ??a3 | ??ON | ??0.009 | ??95 | ??1000 | ??1000 |
| ??L4 | ??b1 | ??b2 | ??ON | ??0.009 | ??80 | ??1000 | ??1000 |
| ??L5 | ??b1 | ??b3 | ??ON | ??0.012 | ??85 | ??1200 | ??1200 |
| ??L6 | ??b2 | ??b3 | ??ON | ??0.008 | ??79 | ??900 | ??900 |
| ??L7 | ??c1 | ??c2 | ??ON | ??0.006 | ??86 | ??600 | ??600 |
| ??L8 | ??c1 | ??c3 | ??ON | ??0.009 | ??87 | ??800 | ??800 |
| ??L9 | ??c2 | ??c3 | ??ON | ??0.006 | ??95 | ??500 | ??500 |
| ??L10 | ??a2 | ??b2 | ??ON | ??0.027 | ??180 | ??3200 | ??3200 |
| ??L11 | ??a3 | ??b1 | ??ON | ??0.025 | ??160 | ??2800 | ??2800 |
| ??L12 | ??b3 | ??c2 | ??ON | ??0.022 | ??190 | ??1800 | ??1800 |
| ??L13 | ??b3 | ??c1 | ??ON | ??0.018 | ??185 | ??2400 | ??2400 |
| ??L14 | ??A | ??a1 | ??ON | ??0.012 | ??0 | ??∞ | ??∞ |
| Interconnection | Start node | Terminal node | Connection status | Via net loss | The transmission of electricity expense (unit/MWh) | Forward can be used transmission line capability (MW) | Reverse available transmission line capability (MW) |
| ??L15 | ??A | ??a3 | ??ON | ??0.012 | ??0 | ??∞ | ??∞ |
| ??L16 | ??A | ??a2 | ??ON | ??0.012 | ??0 | ??∞ | ??∞ |
| ??L17 | ??B | ??b2 | ??ON | ??0.011 | ??0 | ??∞ | ??∞ |
| ??L18 | ??B | ??b1 | ??ON | ??0.011 | ??0 | ??∞ | ??∞ |
| ??L19 | ??B | ??b3 | ??ON | ??0.011 | ??0 | ??∞ | ??∞ |
| ??L20 | ??C | ??c2 | ??ON | ??0.013 | ??0 | ??∞ | ??∞ |
| ??L21 | ??C | ??c1 | ??ON | ??0.013 | ??0 | ??∞ | ??∞ |
| ??L22 | ??C | ??c3 | ??ON | ??0.013 | ??0 | ??∞ | ??∞ |
The network node parameter is as shown in table 2 in the network topology:
Table 2: network node parameter
| The network topology node | Via net loss | The transmission of electricity expense (unit/MWh) | Forward can be used transmission line capability (MW) | Reverse available transmission line capability (MW) |
| The a1 node | ??0.009 | ??20 | ??50000 | ??50000 |
| The a2 node | ??0.012 | ??20 | ??50000 | ??50000 |
| The a3 node | ??0.01 | ??20 | ??48000 | ??48000 |
| The b1 node | ??0.008 | ??20 | ??49000 | ??49000 |
| The b2 node | ??0.011 | ??20 | ??51000 | ??51000 |
| The b3 node | ??0.009 | ??20 | ??49500 | ??49500 |
| The c1 node | ??0.008 | ??20 | ??48900 | ??48900 |
| The c2 node | ??0.007 | ??20 | ??51000 | ??51000 |
| The c3 node | ??0.008 | ??20 | ??50800 | ??50800 |
| The network topology node | Via net loss | The transmission of electricity expense (unit/MWh) | Forward can be used transmission line capability (MW) | Reverse available transmission line capability (MW) |
| The A node | ??0.012 | ??20 | ??100000 | ??100000 |
| The B node | ??0.011 | ??20 | ??128000 | ??128000 |
| The C node | ??0.013 | ??20 | ??115000 | ??115000 |
2) set of the trading channel between province node and the province node can obtain according to the initial terminal node search of interconnection.The trading channel of each bar connected state identifies start node, contact branch road, contact branch road transmission of electricity direction, transhipment node, the terminal node that comprises.
3) calculate the transmission of electricity expense of this passage according to each interconnection transmission of electricity expense in the trading channel of each bar connected state and the transmission of electricity expense of transhipment node:
Wherein, P
Transmission of electricity iVia net loss for each interconnection in the passage and transhipment node;
4) minimum value of the available transmission line capability of interior each interconnection of trading channel and transhipment node is as the available transmission line capability of this trading channel;
5) according to respectively getting in touch with the via net loss that the via net loss of branch network loss with the transhipment node calculates this trading channel in each trading channel:
Wherein, λ
iVia net loss for each interconnection in the trading channel and transhipment node;
As shown in Figure 2, province a1 node and province b1 node, available trading channel set between them, and the transmission of electricity expense of trading channel, via net loss and available transmission line capability are as shown in table 3 below, a trading channel synoptic diagram wherein as shown in Figure 3:
Table 3: when concluding the business between economizing for the present invention, the trading channel table between a1 and the b1
Wherein, contact branch road (line) preceding (+) expression forward transmitted, (-) expression reverse transfer.
Embodiment 2. provinces and the search of one's respective area trading channel
With node a1 in province among Fig. 1 and Area Node A is example, and the concrete searching method step of electricity transaction passage therebetween is as follows:
1) set up three-class power market power trading network topology relation on the basis of the physical network topology relation of having set up, method step is identical with the step 1) of embodiment 1.
2) trading channel between province and the one's respective area adopts the virtual interconnection among Fig. 2, and passage can be available transmission line capability, transmission of electricity expense and the via net loss of this interconnection with transmission line capability, transmission of electricity expense, via net loss.
Province node a1 gathers to the trading channel between the Area Node A: { a1-(-) L14-A}; Have only unique selection, do not have transhipment province and transshipment area in the trading channel.Passage can be infinitely great with transmission line capability, and the transmission of electricity expense is 0, and via net loss is 0.012.
Embodiment 3. provinces and the search of exterior domain trading channel
With node b1 in province among Fig. 1 and Area Node C is example, and the concrete searching method step of electricity transaction passage therebetween is as follows:
1) set up three-class power market power trading network topology relation on the basis of the physical network topology relation of having set up, method step is identical with the step 1) of embodiment 1.
2) trading channel between province node and the exterior domain node, start node are this province node, and terminal node is province, the border node of exterior domain, and passage no longer passes through other province node of exterior domain.
The start node of trading channel is this province node b1, and terminal node is zone C inner boundary province node c1 or c2, and passage no longer passes through other province of zone C node c3.
Its available transaction passage comprises:
①{b1-(+)L4-b2-(+)L6-b3-(+)L13-c1}，
②{b1-(+)L5-b3-(+)L13-c1}，
③{b1-(+)L4-b2-(+)L6-b3-(+)L12-c2，b1-(+)L5-b3-(+)L12-c2}。
The transshipment area tabulation that relates in each trading channel: { B}.
3) calculating of the available transmission line capability of each trading channel, transmission of electricity expense and via net loss is with the step 3), 4 of embodiment 1), 5) identical, do not repeat them here, also no longer list result of calculation.
Embodiment 4. zones and the search of other provinces trading channel
With Area Node A among Fig. 1 and province node b2 is example, and the concrete searching method step of electricity transaction passage therebetween is as follows:
1) set up three-class power market power trading network topology relation on the basis of the physical network topology relation of having set up, method step is identical with the step 1) of embodiment 1.
2) trading channel between zone and other provinces, start node are this inner boundary province, zone node, and terminal node is other provinces node, and no longer pass through other province node in this zone.
Trading channel between Area Node A and the province node b2, start node are province, border node a2 or the a3 of regional A, and terminal node is province node b2, and passage no longer passes through other province of regional A node a1.
Its available transaction passage comprises:
①{a2-(+)L10-b2}；
②{a3-(+)L11-b1-(+)L4-b2}；
The transshipment area tabulation that relates in each trading channel: { B}
3) calculating of the available transmission line capability of each trading channel, transmission of electricity expense and via net loss is with the step 3), 4 of embodiment 1), 5) identical, do not repeat them here, also no longer list result of calculation.
Embodiment 5. zones are searched for the trading channel in zone
With Area Node A among Fig. 1 and Area Node C is example, and the concrete searching method step of electricity transaction passage therebetween is as follows:
1) set up three-class power market power trading network topology relation on the basis of the physical network topology relation of having set up, method step is identical with the step 1) of embodiment 1.
2) trading channel between zone and the zone, start node are this inner boundary province, zone node, and terminal node is an exterior domain inner boundary province node, and passage no longer passes through other province node in these two zones.
Trading channel between zone A and the zone C, start node is regional A inner boundary province node a2 or a3, terminal node is zone C inner boundary province node c1 or c2, and passage no longer passes through other province node a1, the c3 of regional A and C.
Its available transaction passage comprises:
①{a2-(+)L10-b2-(+)L6-b3-(+)L13-c1}；
②{a2-(+)L10-b2-(+)L6-b3-(+)L12-c2}；
③{a2-(+)L10b2-(-)L4-b1-(+)L5-b3-(+)L13-c1}；
④{a2-(+)L10-b2-(-)L4-b1-(+)L5-b3-(+)L12-c2}；
⑤{a3-(+)L11-b1-(+)L5-b3-(+)L13-c1}；
⑥{a3-(+)L11-b1-(+)L5-b3-(+)L12-c2}；
⑦{a3-(+)L11-b1-(+)L4-b2-(+)L6-b3-(+)L13-c1}；
⑧{a3-(+)L11-b1-(+)L4-b2-(+)L6-b3-(+)L12-c2}。
The transshipment area tabulation that relates in each trading channel: { B}.
3) calculating of the available transmission line capability of each trading channel, transmission of electricity expense and via net loss is with the step 3), 4 of embodiment 1), 5) identical, do not repeat them here, also no longer list result of calculation.
Embodiment 6. trading channel optimal selection and occlusion analysis
1) organizer of electricity market will participate in the electricity transaction user of electricity transaction, be provided with according to market member under it (each province's grid company and regional power grid company) character, navigate to the node in the corresponding electric power trade network model, and will be as shown in table 4:
Table 4: the network node parameter of market member's correspondence
| The electricity transaction user | The market member of representative | Corresponding network topology node |
| A1 quotation person | A1 economizes electrical network company | The a1 node |
| A2 quotation person | A2 economizes electrical network company | The a2 node |
| A3 quotation person | A3 economizes electrical network company | The a3 node |
| B1 quotation person | B1 economizes electrical network company | The b1 node |
| B2 quotation person | B2 economizes electrical network company | The b2 node |
| B3 quotation person | B3 economizes electrical network company | The b3 node |
| C 1 quotation person | C1 economizes electrical network company | C 1 node |
| C2 quotation person | C2 economizes electrical network company | The c2 node |
| C3 quotation person | C3 economizes electrical network company | The c3 node |
| A quotation person | The a-quadrant grid company | The A node |
| B quotation person | B regional power grid company | The B node |
| C quotation person | C regional power grid company | The C node |
2) after quotation person's login system, system is according to the user identity of login, and the corresponding relation in the table 4, the market member of firm offer person's representative and corresponding network topology node.
3) transaction data of declaring according to quotation person forms and purchases set of electricity side and the set of sale of electricity side, and will purchase the set ordering of sale of electricity side according to the marketing rule.
4), form the trading channel set between all nodes according to listed step among the embodiment 1-embodiment 5.And can determine trading channel set between all market members according to the corresponding relation of market member and node.
5) take out all market members the set of market member and sale of electricity side one by one from purchasing electricity side, determine that according to the marketing rule transaction matching principle and optimal channel select.As the marketing rule predetermining, electricity price is converted sale of electricity side, the passage of price differential maximum is an optimal channel, the match is successful in transaction.Wherein the computing method of price differential are:
Δ P=P
Purchase* (1-λ)-(P
Sell+ P
Transmission of electricity)
Wherein, P
PurchaseFor purchasing the quotation of electricity side, P
SellBe the quotation of sale of electricity side, P
Transmission of electricityBe trading channel transmission of electricity expense, λ is the trading channel via net loss.
The price difference of every trading channel was calculated in the transmission of electricity expense of every passage and via net loss and market member's telegram valency of purchasing and sale of electricity quotation during then all available transaction passages that obtain according to step 4) were gathered, and determined optimal channel.
6) carry out occlusion analysis according to the available transmission line capability of this optimum available transaction passage and the transaction electric weight of match trading:
All Activity electric weight Transaction Success when a) available transmission line capability is greater than the transaction electric weight, upgrade the available transmission line capability of every interconnection in the trading channel with the Transaction Success electric weight, and recomputate the available transmission line capability of every the trading channel that relates in the former available transaction passage set.
When b) available transmission line capability was less than the transaction electric weight, the Transaction Success electric weight was the available transmission line capability of this passage.Upgrade the available transmission line capability of every interconnection in the trading channel with the Transaction Success electric weight, and recomputate the available transmission line capability of every the trading channel that relates in the set of former available transaction passage, this passage gets clogged when being less than or equal to zero, state is unavailable, removes from the available channel set.
7) repeating step 5)-step 6), finish until the All Activity coupling.
This embodiment no longer provides concrete data declaration.
The various embodiments described above can not depart from the scope of the present invention down in addition some variations, thus more than explanation comprise and accompanying drawing shown in structure should be considered as exemplary, but not in order to limit claim of the present invention.
Claims (10)
1. the search and the establishment method of a three-class power marketing passage is characterized in that method step is as follows:
1) at first on the basis of the physical network topology relation of having set up, set up three-class power market power trading network topology relation:
A) add the zone to physical network topology as dummy node and concern in the network system, with physical network branch road province node simultaneously as the node in the network model, wherein, the province node is the child node of region node, and all nodes are numbered;
B) with transregional, transprovincially interconnection adds in the physical network, it is initial, terminal node is the province node, and determines available transmission line capability, transmission of electricity expense and the via net loss of each interconnection according to the operation of power networks situation;
C) add the virtual equivalent interconnection between Area Node and the province node under it, think that the available transmission line capability of this interconnection is infinity, the transmission of electricity expense is zero, and via net loss is the zone leveling network loss; All interconnections are numbered;
D) connection or the off-state of interconnection are set according to power system operating mode, wherein, the state of virtual interconnection is always " connection ";
2) to each to playing, end node searching available transaction passage, respectively to the path between them search for, record, form the trading channel set;
3) trading channel with each bar connected state identifies start node, contact branch road, contact branch road transmission of electricity direction, transhipment node, the terminal node that comprises;
4) calculate the transmission of electricity expense of this passage according to respectively getting in touch with branch road transmission of electricity expense and the transmission of electricity expense of transhipment node in the trading channel of each bar connected state respectively;
5) according to respectively getting in touch with the via net loss that the via net loss of branch network loss with the transhipment node calculates this trading channel in the trading channel of each connected state;
6) respectively get in touch with the minimum value of available transmission line capability of branch road and transhipment node in the trading channel of connected state as the initial available transmission line capability of this trading channel;
7) the market member that will participate in electricity transaction is provided with according to its character, navigates to node corresponding in the network model; Thereby respectively participated in the trading channel set between the market member of electricity transaction.
2. the search and the establishment method of three-class power marketing passage according to claim 1, it is characterized in that: determine optimum available transaction passage between each both parties, transaction coupling respectively according to trading rules in the trading channel set back that is respectively participated between the market member of electricity transaction.
3. the search and the establishment method of three-class power marketing passage according to claim 1 is characterized in that: after finishing the transaction coupling and the match is successful, upgrade the trading channel transmission line capability that this transaction relates to.
4. the search and the establishment method of three-class power marketing passage according to claim 3 is characterized in that: when the trading channel transmission line capability that the match is successful is 0, think that this passage gets clogged, state becomes unavailable, and interconnection is an off-state.
5. the search and the establishment method of three-class power marketing passage according to claim 1, it is characterized in that: according to transmission of electricity expense and via net loss and market member's the telegram valency of purchasing and the price difference that every trading channel is calculated in the sale of electricity quotation of every passage in all available transaction passages set of step 4) acquisition, determine optimal channel, it converts sale of electricity side with electricity price, and the passage of price differential maximum is optimum available transaction passage.
6. the search and the establishment method of three-class power marketing passage according to claim 4 is characterized in that blocking setting according to the available transmission line capability of this optimum available transaction passage and the transaction electric weight of match trading:
When a) available transmission line capability is greater than the transaction electric weight, All Activity electric weight Transaction Success, upgrade the available transmission line capability of every interconnection in the trading channel with the Transaction Success electric weight, and recomputate the available transmission line capability of every the trading channel that relates in the former available transaction passage set;
When b) available transmission line capability was less than the transaction electric weight, the Transaction Success electric weight was the available transmission line capability of this passage; Upgrade the available transmission line capability of every interconnection in the trading channel with the Transaction Success electric weight, and recomputate the available transmission line capability of every the trading channel that relates in the set of former available transaction passage, this passage gets clogged when being less than or equal to zero, state is unavailable, removes from the available channel set.
7. the search and the establishment method of three-class power marketing passage according to claim 1, it is characterized in that: the market member of a pair of participation electricity transaction represents one of certain province node outside a regional dummy node and this zone respectively, then the start node of the trading channel between them is this inner boundary province, zone node, terminal node is an exterior domain province node, and trading channel no longer passes through other province node of this zone.
8. the search and the establishment method of three-class power marketing passage according to claim 1, it is characterized in that: the market member of a pair of participation electricity transaction represents one of a province node and exterior domain dummy node respectively, then the trading channel start node between them is this province node, terminal node is this exterior domain inner boundary province node, and passage no longer passes through other province node of this exterior domain.
9. the search and the establishment method of three-class power marketing passage according to claim 1, it is characterized in that: the market member of a pair of participation electricity transaction represents one of a regional dummy node and exterior domain dummy node respectively, and then the trading channel between them is the trading channel between each province, border node in two zones.
10. the search and the establishment method of three-class power marketing passage according to claim 1, it is characterized in that: the market member that will participate in electricity transaction in the described step 7) is provided with according to its character, navigate to node corresponding in the network model, it is to be provided with according to the character that is subordinate to province or regional power grid company.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101901428A (en) * | 2010-07-21 | 2010-12-01 | 中国电力科学研究院 | Electricity market simulating system by adopting SOA technology |
| CN103262115A (en) * | 2010-12-08 | 2013-08-21 | 索尼公司 | Electric power management system |
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| CN111723549A (en) * | 2020-06-15 | 2020-09-29 | 中国电力科学研究院有限公司 | Method, system and equipment for model nesting and information interaction of inter-provincial and intra-provincial power markets |
| CN111950782A (en) * | 2020-07-31 | 2020-11-17 | 国网上海市电力公司 | Power market scheduling method based on fuzzy evaluation |
| CN115600766A (en) * | 2022-11-23 | 2023-01-13 | 中国电力科学研究院有限公司（Cn） | Cross-provincial electric power transaction path searching method, system, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901428A (en) * | 2010-07-21 | 2010-12-01 | 中国电力科学研究院 | Electricity market simulating system by adopting SOA technology |
| CN101901428B (en) * | 2010-07-21 | 2016-01-20 | 中国电力科学研究院 | A kind of electricity market simulating system adopting SOA technology |
| CN103262115A (en) * | 2010-12-08 | 2013-08-21 | 索尼公司 | Electric power management system |
| CN107016129A (en) * | 2017-05-17 | 2017-08-04 | 刘继君 | A kind of power equipment information acquisition method and device |
| CN111723549A (en) * | 2020-06-15 | 2020-09-29 | 中国电力科学研究院有限公司 | Method, system and equipment for model nesting and information interaction of inter-provincial and intra-provincial power markets |
| CN111723549B (en) * | 2020-06-15 | 2023-06-16 | 中国电力科学研究院有限公司 | Model nesting and information interaction method, system and equipment for inter-province and intra-province power markets |
| CN111950782A (en) * | 2020-07-31 | 2020-11-17 | 国网上海市电力公司 | Power market scheduling method based on fuzzy evaluation |
| CN115600766A (en) * | 2022-11-23 | 2023-01-13 | 中国电力科学研究院有限公司（Cn） | Cross-provincial electric power transaction path searching method, system, equipment and storage medium |
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