CN105870917A - Electric power grid supply system - Google Patents
Electric power grid supply system Download PDFInfo
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- CN105870917A CN105870917A CN201610242603.1A CN201610242603A CN105870917A CN 105870917 A CN105870917 A CN 105870917A CN 201610242603 A CN201610242603 A CN 201610242603A CN 105870917 A CN105870917 A CN 105870917A
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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
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
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Abstract
The invention discloses an electric power grid supply system, which comprises a transfer load calculation module, a transfer power supply search module, an online monitoring module, an independent transfer power supply judgment module and a load sharing and transferring operation scheme generation module, wherein a transfer load list generation module is used for searching loads on all sections at the downstream part of power-off switch equipment or inspection switch equipment, and calculating a transfer load total value and generating a transfer load list according to the searched loads; the transfer power supply search module sequentially traverses each section from the downstream section of a power-off switch or an inspection switch, searches to a power supply at the other side across an interconnection switch if the interconnection switch exists in the section, and sequentially finds out all transferrable power supplies; and the online monitoring module comprises state monitoring sub-stations and online monitoring devices. By combining a heuristic rule and a topological tree, the problem that the loads need to be operated and transferred through multiple interconnection switches and section switches for a large-area power-off failure can be quickly solved without a lot of calculation.
Description
Technical field
The present invention relates to Power System and its Automation and intelligent distribution network technical field, particularly to a kind of electric power network feed system.
Background technology
System for distribution network of power includes substantial amounts of switch, is broadly divided into interconnection switch and block switch.(ground connection, broken string and equipment overload is included) and during apparatus of load obvious unbalanced after power distribution network breaks down, line fault can be excised by adjusting the folding condition of network switching, isolated fault also shifts fault zone of influence internal loading, to reduce fault incidence, or abatement apparatus overload, and apparatus of load is unbalanced, thus totally improve economy and the safety of operation of power networks.
Supply load transfer after distribution network failure is a multiobject optimization problem, after grid collapses, run operator to be desirable to quickly provide fault isolation schemes and load transfer scheme, the rapidity solved not only is claimed by this, also require that gratifying load shifts result, the target of fault afterload transfer is usually recovers dead electricity region internal loading (including important load and insignificant load etc.) with as far as possible more, simultaneously it is contemplated that network loss, switching manipulation number of times, the index such as power-balance.
At present, the widely used method of Utilities Electric Co. is substantially based on empirical approach and provides corresponding operation scheme, therefore, it is impossible to carry out the selection of operation scheme optimality and make most load be shifted, and power failure range is minimum；When there being multiple place that overload occurs, and during fault outage, it is impossible to realize load transfer in phase；Heavily enough schemes that cannot rationally be given realize the equilibrium of apparatus of load.The scheme that the most current empirical approach is given often requires that traffic control personnel have good experience, has the most deep understanding and grasp to system equipment, thus traffic control personnel are added the biggest operating pressure.
Summary of the invention
Goal of the invention: the invention aims to solve deficiency of the prior art, one is provided to utilize heuristic rule and topological tree to combine, need not use substantial amounts of calculating, just can quickly provide large-area power-cuts fault need to be by multiple interconnection switches, the electric power network feed system of the problem of block switch transition of operation load and supply method.
Technical scheme: a kind of electric power network feed system of the present invention, including turn for load calculation module, turn power supply source search module, on-line monitoring module, independently turn power supply source judge module, load is shared to turn and is supplied operation scheme generation module；
Turn for load List Generating Module for searching for power failure or the load that carried of all sections of inspection switch device downstream, obtain turning according to the carry calculation searched and turn for load list for load total value and producing；
Turn power supply source search module from having a power failure or from the beginning of inspection switch downstream section, traveling through each section successively, if there is interconnection switch in section, striding across interconnection switch and outwards searching for opposite side power supply, sequentially find and all turn power supply source；
On-line monitoring module includes status monitoring substation and on-Line Monitor Device；
Status monitoring substation is used for receiving equipment account information, and after generate the SCD expansion templates file meeting SCD expansion templates form according to described equipment account information, sends described SCD expansion templates file to described on-Line Monitor Device；Status monitoring substation is additionally operable to the SCD expansion templates integrating documents after described on-Line Monitor Device is filled intact device relevant information and generates the SCD file at whole station；
On-Line Monitor Device is for the call format according to described SCD expansion templates file, and describes ICD file according to the configuration of on-Line Monitor Device, the device relevant information in described SCD expansion templates file is filled complete；
Independently turn power supply source judge module for comparing turning with the residual capacity turning each power supply that power supply source search module finds for load total value for turning of load List Generating Module generation, compare turn for turning of producing of load List Generating Module for load total value less than the residual capacity of the power supply that currently compares time, using the power supply currently compared as can independently turn power supply source, and the information that can independently turn power supply source is supplied to dispatcher；Compare turn for load List Generating Module produce when turning for load total value more than the residual capacity of each power supply, order that what output was preset share is shared to load and is turned for operation scheme generation module；
Load is shared and is turned for operation scheme generation module for for load total value for turning of producing of load List Generating Module and turning the residual capacity of the power supply that power supply source search module finds and carry out amortization ratio calculating according to turning, and obtains the amortization ratio value of each power supply；When judging to disclosure satisfy that according to the amortization ratio value of power supply the load value in turning for load list requires, produce load and share a turn confession operation scheme information, and share load to turn and be supplied to dispatcher for operation scheme information, turn supply to instruct dispatcher to carry out load.
Further, the active load mode turning each section in power supply source search module record searching route is basic tree construction, and section, as the node of tree, has a power failure or inspection switch downstream section is the root node set.
Further, independently turn power supply source judge module compare turn for turning of producing of load List Generating Module for load total value less than the residual capacity of the power supply that currently compares time, the power supply of the residual capacity being not less than the power supply currently compared is obtained from each section turning power supply source search module record, using the power supply of acquisition as independently turning power supply source, and according to descending order, the information that respectively can independently turn power supply source is supplied to dispatcher.
Further, during distribution network failure, load transfer system also includes that load shedding performs module, turn power supply source search module and also record the active load of each section in searching route, load share turn for operation scheme generation module when judging the requirement that can not meet the load value searched according to the amortization ratio value of power supply, output preset load shedding order perform module to load shedding；Load shedding performs module and is used for responding load shedding order, the assigned priority of the active load according to record, the active load being carried each power supply chosen is cut down, and finally produces load for an operation scheme generation module and shares so that load is shared to turn and turn for an operation scheme information.
Further, load share turn for operation scheme generation module include power supply select unit, amortization ratio computing unit, share turn for operation scheme generation unit power supply select unit, start to select for the power supply maximum from residual capacity, and be overlapped obtaining superposition value by the residual capacity of the power supply selected, when superposition value is not less than when turning for load total value, stop selecting, and the power supply selected is supplied to amortization ratio computing unit；
Amortization ratio computing unit, for carrying out amortization ratio calculating according to the residual capacity turning the power supply selecting unit to provide for load total value and power supply, and obtains the amortization ratio value of the power supply of greatest residual capacity in each section；
Share and turn for operation scheme generation unit, for when judging the requirement that disclosure satisfy that the load value searched according to the amortization ratio value of power supply, produce load and share and turn for operation scheme information；When judging the requirement that can not meet the load value turned in confession load list searched according to the amortization ratio value of power supply, the load shedding order that output is preset performs module to load shedding.
Further, described powernet monitoring system also includes: production management system and status monitoring main website；Production management system is for generating equipment account information according to IEC61968 standard, and equipment account model is supplied to described status monitoring main website；Status monitoring main website is for being sent to described status monitoring substation by described equipment account information by ftp；Described status monitoring substation includes:
Signal dispatcher module, the information between reiving/transmitting state monitoring sub-station and status monitoring main website, on-Line Monitor Device；Including: receive the equipment account information issued by status monitoring main website；Start
61850 clients are set up with on-Line Monitor Device and are connected, and send described SCD expansion templates file by IEC61850 file service；Receive the SCD expansion templates file after the filling intact device relevant information of on-Line Monitor Device feedback；Document processing module, the equipment account information for being received according to described signal dispatcher module generates the SCD expansion templates file meeting SCD expansion templates form；And the described on-Line Monitor Device that described signal dispatcher module received fill intact device relevant information after SCD expansion templates integrating documents generate the SCD file at whole station.
Further, the call format of described SCD expansion templates file is:
The monitoring position being pointed under Substation class node
The attribute of LNode node increases extended attribute ext:DOIDesc
It is used for storing the extended description describing the data object extracted ICD from configuration, is used for representing monitoring location expression information and the business datum that this monitoring position is corresponding；
The unique identity property of extended attribute ext:mRID, this attribute i.e. asset identification mRID of equipment account information model equipment are increased for all nodes under Substaion node；
Intelligent electronic device IED node increases extended attribute
Asset identification mRID of equipment in ext:mRID, i.e. equipment account information model, needs to fill in the Asset ID of the secondary device in corresponding assets reduced model, is used for carrying out secondary device association.
The invention also discloses the supply method of a kind of electric power network, comprise the following steps:
Search has a power failure or the load that carried of all sections of inspection switch device downstream, obtains turning according to the carry calculation searched and turns for load list for load total value and producing；
From having a power failure or from the beginning of inspection switch downstream section, traveling through each section successively, if there is interconnection switch in section, striding across interconnection switch and outwards searching for opposite side power supply, sequentially find and all turn power supply source；
The residual capacity for load total value with each power supply found that turns produced is compared, when turn confession load total value comparing generation is less than the residual capacity of the power supply currently compared, using the power supply currently compared as can independently turn power supply source, and the information that can independently turn power supply source is supplied to dispatcher；
Comparing when turning for load total value more than the residual capacity of each power supply of generation, carry out amortization ratio calculating according to turning of producing for load total value and the residual capacity of power supply that finds, and obtain the amortization ratio value of each power supply；
When judging to disclosure satisfy that according to the amortization ratio value of power supply the load value in turning for load list requires, produce load and share a turn confession operation scheme information, and share load to turn and be supplied to dispatcher for operation scheme information, turn supply to instruct dispatcher to carry out load.
Further, the step that " comparing when turning for load total value more than the residual capacity of each power supply of generation; carry out amortization ratio calculating according to the residual capacity of the power supply turned in each section for load total value and record produced, and obtains the amortization ratio value of power supply in each section " particularly as follows:
Start to select from the power supply that residual capacity is maximum, and be overlapped the residual capacity of the power supply selected obtaining superposition value, when superposition value is not less than when turning for load total value, stop selecting；
Carry out amortization ratio calculating according to turning for load total value and the residual capacity of power supply that selected, and obtain the amortization ratio value of the power supply of greatest residual capacity in each section.
Further, " when judging to disclosure satisfy that according to the amortization ratio value of power supply that the load value in turning for load list requires; produce load and share and turn for operation scheme information; and share load to turn and be supplied to dispatcher for operation scheme information, with instruct dispatcher carry out load turn for " step particularly as follows:
First load is searched for power-off switch, the most again to residue load search from interconnection switch；
Judge to disclosure satisfy that according to the amortization ratio value of power supply search turn for load list in the requirement of load value time, produce load and share and turn for operation scheme information；
And share load to turn and be supplied to dispatcher for operation scheme information, turn supply to instruct dispatcher to carry out load.
Beneficial effect: the present invention utilizes heuristic rule and topological tree to combine, it is not necessary to use substantial amounts of calculating, just can quickly provide large-area power-cuts fault need to be by multiple interconnection switches, the problem of block switch transition of operation load.Add monitoring system simultaneously, can solve owing to on-line monitoring modeling procedure is chaotic, the model information island caused lack of standardization, decrease the miscellaneous modeling process of traditional scheme, improve accuracy and reliability.On the other hand, the powernet monitoring method provided due to the present invention and system take the modeling scheme of maturation, implement so being easier to modeling.
Accompanying drawing explanation
Fig. 1 is the feed system overall structure schematic diagram of the present invention；
Fig. 2 is the structural representation of the first embodiment of the on-line monitoring module of the present invention；
Fig. 3 is the second example structure signal of the on-line monitoring module of the present invention；
Fig. 4 is the supply method flow chart of the present invention.
Detailed description of the invention
The present invention uses heuritic approach to solve the problem that power distribution network large-area power-cuts need to shift supply load on a large scale, share turn for during have employed topology based on basic tree quickly inspection policies, without carry out complexity traversal and can quickly be given load supply scheme, the following specifically describes the present invention provide scheme:
Define about abbreviation and Key Term:
Block switch: block switch is normally closed switch, is kept closed under usual ruuning situation, and its major function is isolated fault etc..
Interconnection switch: interconnection switch is normal open switch, remains off under usual ruuning situation, shifts for emergency use.
Load transfer: on the premise of meeting the basic demands such as the radial operation of electrical network, node voltage, line current, by changing the operation such as network breaker in middle state or excision load, fault zone internal loading is transferred to other power supply buses, thus reduces loss that fault brings, improve node voltage skew, eliminate the purposes such as circuit overload.
Load margin: the load margin of interconnection switch refer to this interconnection switch be connected feed line of power supply rated load and actual load at that time between difference.
Tree-data structure: it is by n(n >=1) individual limited node forms a set with hierarchical relationship.It is called " tree " be because it and look like the tree of a reversal of the natural order of things, say, that it be root upward, and leaf is down；It has following feature: each node has zero or more child node；The node not having forerunner is referred to as root node；Each non-root node has and only one of which father node；In addition to root node, each child node can be divided into m disjoint subtree.
Section: the connected region with switch as border.
Referring to Fig. 1, during distribution network failure load transfer system include turn for load calculation module, turn power supply source search module, on-line monitoring module, independently turn power supply source judge module, load share turn for operation scheme generation module, load shedding execution module.
Turn for load List Generating Module for searching for power failure or the load that carried of all sections of inspection switch device downstream, obtain turning according to the carry calculation searched and turn for load list for load total value and producing.Turn and include the information of load and the load value of load for load list.
Turn power supply source search module from having a power failure or from the beginning of inspection switch downstream section, travel through each section successively, if there is interconnection switch in section, stride across interconnection switch outwards to search for opposite side power supply, sequentially find all power supply sources that turns, and record the active load of each section in searching route.Wherein, the active load mode turning each section in power supply source search module record searching route is basic tree construction, and section, as the node of tree, has a power failure or inspection switch downstream section is the root node set.
See Fig. 2, for the first embodiment structural representation of the on-line monitoring film that the present invention provides.As shown in Fig. 2, this powernet monitoring system includes: status monitoring substation 3 and on-Line Monitor Device；
Status monitoring substation is used for receiving equipment account information, and after generate the SCD expansion templates file meeting SCD expansion templates form according to described equipment account information, sends described SCD expansion templates file to described on-Line Monitor Device；Status monitoring substation is additionally operable to the SCD expansion templates integrating documents after described on-Line Monitor Device is filled intact device relevant information and generates the SCD file at whole station.
On-Line Monitor Device is for the call format according to described SCD expansion templates file, and according to the ICD file of on-Line Monitor Device, the device relevant information in described SCD expansion templates file is filled complete.
On the one hand the powernet monitoring modular that the embodiment of the present invention provides can solve owing to on-line monitoring modeling procedure is chaotic, and the model information island caused lack of standardization decreases the miscellaneous modeling process of traditional scheme, improves accuracy and reliability.
See Fig. 3, powernet monitoring modular the second example structure schematic diagram provided for the present invention.In the present embodiment, the structure of this system and the function of modules be will be described in greater detail.As shown in Fig. 3, this powernet monitoring system includes: production management system, status monitoring main website, status monitoring substation and on-Line Monitor Device.
Production management system is for generating equipment account information according to IEC61968 standard, and equipment account model is supplied to described status monitoring main website.
Status monitoring main website is for being sent to described status monitoring substation by described equipment account information by ftp.
Status monitoring substation is used for receiving equipment account information, and after generate the SCD expansion templates file meeting SCD expansion templates form according to described equipment account information, sends described SCD expansion templates file to described on-Line Monitor Device；Status monitoring substation is additionally operable to the SCD expansion templates integrating documents after described on-Line Monitor Device is filled intact device relevant information and generates the SCD file at whole station.More specifically, described status monitoring substation also includes:
Signal dispatcher module, the information between reiving/transmitting state monitoring sub-station and status monitoring main website, on-Line Monitor Device.
Specifically include: receive the equipment account information issued by status monitoring main website；Start
61850 clients are set up with on-Line Monitor Device and are connected, and send described SCD expansion templates file by IEC61850 file service；And receive the SCD expansion templates file after the filling intact device relevant information of on-Line Monitor Device feedback.
Document processing module, the equipment account information for being received according to described signal dispatcher module generates the SCD expansion templates file meeting SCD expansion templates form；And the described on-Line Monitor Device that described signal dispatcher module received fill intact device relevant information after SCD expansion templates integrating documents generate the SCD file at whole station.More specifically, the content of described SCD expansion templates file includes the account information of substation's once equipment and secondary device, and status monitoring substation is the IED title automatically distributed of on-Line Monitor Device and messaging parameter；Described account information includes asset number and device name.
On-Line Monitor Device is for the call format according to described SCD expansion templates file, and according to the ICD file of on-Line Monitor Device, the device relevant information in described SCD expansion templates file is filled complete.More specifically, the call format of described SCD expansion templates file is:
It is pointed to
The attribute of the monitoring position LNode node under Substation class node increases extended attribute ext:DOIDesc and is used for storing the extended description of the data object extracted from ICD, is used for representing monitoring location expression information and the business datum that this monitoring position is corresponding.
Extended attribute is increased for all nodes under Substaion node
The unique identity property of ext:mRID, this attribute i.e. asset identification mRID of equipment account information model equipment.
IED node increases asset identification mRID of equipment in extended attribute ext:mRID, i.e. equipment account information model, needs to fill in the Asset ID of the secondary device in corresponding assets reduced model, is used for carrying out secondary device association.
Independently turn power supply source judge module for comparing turning with the residual capacity turning each power supply that power supply source search module 30 finds for load total value for turning of load List Generating Module generation, compare turn for turning of producing of load List Generating Module for load total value less than the residual capacity of the power supply that currently compares time, using the power supply currently compared as can independently turn power supply source, and the information that can independently turn power supply source is supplied to dispatcher；Compare turn for load List Generating Module produce when turning for load total value more than the residual capacity of each power supply, order that what output was preset share is shared to load and is turned for operation scheme generation module 50.Further, in the case of the residual capacity having multiple power supply is more than and turns for load total value, turn power supply source judge module compare turn for turning of producing of load List Generating Module for load total value less than the residual capacity of the power supply that currently compares time, the power supply of the residual capacity being not less than the power supply currently compared is obtained from each section turning power supply source search module record, using the power supply of acquisition as independently turning power supply source, and according to descending order, the information that respectively can independently turn power supply source is supplied to dispatcher, finally selected one of them power supply to carry out operation as turning solution to perform by dispatcher.
Load is shared and is turned for operation scheme generation module for for load total value for turning of producing of load List Generating Module and turning the residual capacity of the power supply that power supply source search module finds and carry out amortization ratio calculating according to turning, and obtains the amortization ratio value of the power supply found；When judging to disclosure satisfy that according to the amortization ratio value of power supply the load value in turning for load list requires, produce load and share a turn confession operation scheme information, and share load to turn and be supplied to dispatcher for operation scheme information, turn supply to instruct dispatcher to carry out load；Load share turn for operation scheme generation module when judging the requirement that can not meet the load value searched according to the amortization ratio value of power supply, output preset load shedding order perform module to load shedding.Wherein, load is shared to turn and is included that power supply selects unit, amortization ratio computing unit, shares and turn for operation scheme generation unit for operation scheme generation module；Power supply selects unit to start to select for the power supply maximum from residual capacity, and be overlapped obtaining superposition value by the residual capacity of the power supply selected, when superposition value is not less than when turning for load total value, stop selecting, and the power supply selected is supplied to amortization ratio computing unit, wherein in order to ensure that each power supply can Cost Allocation load, power supply selects the unit power supply that first chosen distance power-off switch is nearest, such as search for each power supply point interconnection switch from power-off switch, and each node in two switch room directapaths is counted, often find a power supply, then the node of process just adds 1；After having searched for, all countings node more than 1 is known as the main line of power-off switch；Then finding the 1st node that each power supply point is connected with main line, the switch between this node and power-off switch is the fewest, then claim this power supply the nearest with power-off switch, otherwise the most remote；Amortization ratio computing unit is for carrying out amortization ratio calculating according to the residual capacity turning the power supply supplying load total value and power supply to select unit to provide, and obtains the amortization ratio value of the power supply of greatest residual capacity；Share turn for operation scheme generation unit for judge to disclosure satisfy that according to the amortization ratio value of power supply search turn for load list in the requirement of load value time, produce load and share and turn for operation scheme information；When judging the requirement that can not meet the load value turned in confession load list searched according to the amortization ratio value of power supply, the load shedding order that output is preset performs module to load shedding.
Load shedding performs module and is used for responding load shedding order, the assigned priority of the active load according to record, the active load being carried each power supply chosen is cut down, and finally produces load for an operation scheme generation module and shares so that load is shared to turn and turn for an operation scheme information.Wherein, cutting down principle is from the beginning of priority is minimum, but can not cut down responsible consumer load, if still can not meet requirement after Xiao Jianing, then prompting user intervenes.Further, load shedding performs module and is operated as follows: the priority of given load, then in all trees, priority ratio assigned priority is searched low and do not have the tree node of child's node, and this node is deleted from tree, then judge whether to meet the node of condition, if there being the node meeting condition, then calculate the total load of all nodes meeting condition found, then the load sum reaching to need to cut is judged whether, after judging the load sum reaching to need to cut, control corresponding power supply point and cut down corresponding load, perform " in all trees, to search priority ratio assigned priority low and there is no the tree node of child's node after judging the load sum being not reaching to need to cut, and by this node from tree delete " function；Without meeting the node of condition, then assigned priority heightens one-level, then judges whether the assigned priority heightened reaches the highest adjustable preferential level threshold values, if it is points out dispatcher, if not the function then performing " priority of given load ".
Refer to Fig. 4, the supply method of a kind of electric power network, comprise the following steps:
Step S301, search has a power failure or the load that carried of all sections of inspection switch device downstream, obtains turning according to the carry calculation searched and turns for load list for load total value and producing.Wherein, turn confession load list and include the information of load and the load value of load.
Step S302, from having a power failure or from the beginning of inspection switch downstream section, traveling through each section successively, if there is interconnection switch in section, striding across interconnection switch and outwards searching for opposite side power supply, sequentially finds and all turns power supply source.Wherein, the also active load of each section in record searching route, the active load mode of each section in record searching route is basic tree construction, and section, as the node of tree, has a power failure or inspection switch downstream section is the root node set.
Step S303, the residual capacity for load total value with each power supply found that turns produced is compared, when turn confession load total value comparing generation is less than the residual capacity of the power supply currently compared, using the power supply currently compared as can independently turn power supply source, and the information that can independently turn power supply source is supplied to dispatcher.
Step S304, comparing when turning for load total value more than the residual capacity of each power supply of generation, carries out amortization ratio calculating according to turning of producing for load total value and the residual capacity of each power supply that finds, and obtains the amortization ratio value of each power supply.Wherein, step S304 is particularly as follows: start to select from the power supply that residual capacity is maximum, and is overlapped the residual capacity of the power supply selected obtaining superposition value, when superposition value is not less than when turning for load total value, stops selecting；Carry out amortization ratio calculating according to turning for load total value and the residual capacity of power supply that selected, and obtain the amortization ratio value of the power supply of greatest residual capacity in each section.
Step S305, when judging to disclosure satisfy that according to the amortization ratio value of power supply the load value in turning for load list requires, produce load to share and turn for operation scheme information, and share load to turn and be supplied to dispatcher for operation scheme information, turn supply to instruct dispatcher to carry out load.Wherein, step S305
Particularly as follows: first search for load to power-off switch from interconnection switch, the most again to residue load search；Judge to disclosure satisfy that according to the amortization ratio value of power supply search turn for load list in the requirement of load value time, produce load and share and turn for operation scheme information；And share load to turn and be supplied to dispatcher for operation scheme information, turn supply to instruct dispatcher to carry out load.
Step S306, when judging the requirement that can not meet the load value turned in confession load list searched according to the amortization ratio value of power supply, the priority level of the active load according to record, after the active load being carried each power supply chosen is cut down, performs the step of step S303 again.
Claims (7)
1. an electric power network feed system, it is characterised in that: include turn for a load calculation module, turn power supply source search module, on-line monitoring module, independently turn power supply source judge module, load share turn confession an operation scheme generation module；
Turn for load List Generating Module for searching for power failure or the load that carried of all sections of inspection switch device downstream, obtain turning according to the carry calculation searched and turn for load list for load total value and producing；
Turn power supply source search module from having a power failure or from the beginning of inspection switch downstream section, traveling through each section successively, if there is interconnection switch in section, striding across interconnection switch and outwards searching for opposite side power supply, sequentially find and all turn power supply source；
On-line monitoring module includes status monitoring substation and on-Line Monitor Device；
Status monitoring substation is used for receiving equipment account information, and after generate the SCD expansion templates file meeting SCD expansion templates form according to described equipment account information, sends described SCD expansion templates file to described on-Line Monitor Device；The SCD expansion templates integrating documents that status monitoring substation is additionally operable to after described on-Line Monitor Device is filled intact device relevant information generates whole station
SCD file；
On-Line Monitor Device is for according to described
The call format of SCD expansion templates file, and according to the configuration of on-Line Monitor Device, ICD file is described, the device relevant information in described SCD expansion templates file is filled complete；
Independently turn power supply source judge module for comparing turning with the residual capacity turning each power supply that power supply source search module finds for load total value for turning of load List Generating Module generation, compare turn for turning of producing of load List Generating Module for load total value less than the residual capacity of the power supply that currently compares time, using the power supply currently compared as can independently turn power supply source, and the information that can independently turn power supply source is supplied to dispatcher
；Compare turn for load List Generating Module produce when turning for load total value more than the residual capacity of each power supply, order that what output was preset share is shared to load and is turned for operation scheme generation module；
Load is shared and is turned for operation scheme generation module for for load total value for turning of producing of load List Generating Module and turning the residual capacity of the power supply that power supply source search module finds and carry out amortization ratio calculating according to turning, and obtains the amortization ratio value of each power supply；When judging to disclosure satisfy that according to the amortization ratio value of power supply the load value in turning for load list requires, produce load and share a turn confession operation scheme information, and share load to turn and be supplied to dispatcher for operation scheme information, turn supply to instruct dispatcher to carry out load.
2. according to a kind of electric power network feed system described in claim 1, it is characterized in that: the active load mode turning each section in power supply source search module record searching route is basic tree construction, section, as the node of tree, has a power failure or inspection switch downstream section is the root node set.
3. according to a kind of electric power network feed system described in claim 2, it is characterized in that: independently turn power supply source judge module compare turn for turning of producing of load List Generating Module for load total value less than the residual capacity of the power supply that currently compares time, the power supply of the residual capacity being not less than the power supply currently compared is obtained from each section turning power supply source search module record, using the power supply of acquisition as independently turning power supply source, and according to descending order, the information that respectively can independently turn power supply source is supplied to dispatcher.
4. according to a kind of electric power network feed system described in claim 3, it is characterized in that: during distribution network failure, load transfer system also includes that load shedding performs module, turn power supply source search module and also record the active load of each section in searching route, load share turn for operation scheme generation module when judging the requirement that can not meet the load value searched according to the amortization ratio value of power supply, output preset load shedding order perform module to load shedding；Load shedding performs module and is used for responding load shedding order, the assigned priority of the active load according to record, the active load being carried each power supply chosen is cut down, and finally produces load for an operation scheme generation module and shares so that load is shared to turn and turn for an operation scheme information.
5. according to a kind of electric power network feed system described in claim 4, it is characterized in that: load share turn for operation scheme generation module include power supply select unit, amortization ratio computing unit, share turn for operation scheme generation unit power supply select unit, start to select for the power supply maximum from residual capacity, and be overlapped obtaining superposition value by the residual capacity of the power supply selected, when superposition value is not less than when turning for load total value, stop selecting, and the power supply selected is supplied to amortization ratio computing unit
；
Amortization ratio computing unit, for carrying out amortization ratio calculating according to the residual capacity turning the power supply selecting unit to provide for load total value and power supply, and obtains the amortization ratio value of the power supply of greatest residual capacity in each section；
Share and turn for operation scheme generation unit, for when judging the requirement that disclosure satisfy that the load value searched according to the amortization ratio value of power supply, produce load and share and turn for operation scheme information；When judging the requirement that can not meet the load value turned in confession load list searched according to the amortization ratio value of power supply, the load shedding order that output is preset performs module to load shedding.
A kind of electric power network feed system the most according to claim 1, it is characterised in that: described powernet monitoring system also includes: production management system and status monitoring main website；Production management system is for generating equipment account information according to IEC61968 standard, and equipment account model is supplied to described status monitoring main website；Status monitoring main website is for being sent to described status monitoring substation by described equipment account information by ftp；Described status monitoring substation includes:
Signal dispatcher module, the information between reiving/transmitting state monitoring sub-station and status monitoring main website, on-Line Monitor Device
；Including: receive the equipment account information issued by status monitoring main website
；Start 61850 clients to be connected with on-Line Monitor Device foundation, and send described SCD expansion templates file by IEC61850 file service；Receive the SCD expansion templates file after the filling intact device relevant information of on-Line Monitor Device feedback；Document processing module, the equipment account information for being received according to described signal dispatcher module generates the SCD expansion templates file meeting SCD expansion templates form；And the described on-Line Monitor Device that described signal dispatcher module received fill intact device relevant information after SCD expansion templates integrating documents generate whole station
SCD file.
A kind of electric power network feed system the most according to claim 6, it is characterised in that: the call format of described SCD expansion templates file is:
Para-position
Monitoring position LNode joint under Substation class node
The attribute of point increases extended attribute ext:DOIDesc and is used for storing the extended description describing the data object extracted ICD from configuration, is used for representing monitoring location expression information and the business datum that this monitoring position is corresponding；
The unique identity property of extended attribute ext:mRID, this attribute i.e. asset identification mRID of equipment account information model equipment are increased for all nodes under Substaion node；
Intelligent electronic device IED node increases asset identification mRID of equipment in extended attribute ext:mRID, i.e. equipment account information model, needs to fill in the Asset ID of the secondary device in corresponding assets reduced model, is used for carrying out secondary device association.
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| CN201610242603.1A CN105870917A (en) | 2016-04-19 | 2016-04-19 | Electric power grid supply system |
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| CN201610242603.1A CN105870917A (en) | 2016-04-19 | 2016-04-19 | Electric power grid supply system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107093017A (en) * | 2017-04-17 | 2017-08-25 | 中国南方电网有限责任公司 | The business datum acquisition methods and its device and system of power-off event |
| CN107104428A (en) * | 2017-03-07 | 2017-08-29 | 温州电力设计有限公司 | A kind of planing method for turning theory entirely based on full cut-off |
| CN107681780A (en) * | 2017-09-07 | 2018-02-09 | 广东电网有限责任公司佛山供电局 | A kind of power network section monitors and turns to supply tactful intelligent generating system and method |
| CN117013701A (en) * | 2023-08-08 | 2023-11-07 | 国网安徽省电力有限公司 | Power quality monitoring method and system for power management |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299560A (en) * | 2010-06-24 | 2011-12-28 | Abb技术有限公司 | Implementing substation automation load transfer function |
| CN102510127A (en) * | 2011-10-21 | 2012-06-20 | 南京南瑞继保电气有限公司 | Method for unifying models of on-line monitored first and secondary equipment of power grid |
| CN103928926A (en) * | 2014-04-28 | 2014-07-16 | 国网宁夏电力公司宁东供电公司 | Load transferring system and method during power distribution network fault |
| CN104467176A (en) * | 2014-08-19 | 2015-03-25 | 深圳供电局有限公司 | Power grid online monitoring method and system |
-
2016
- 2016-04-19 CN CN201610242603.1A patent/CN105870917A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299560A (en) * | 2010-06-24 | 2011-12-28 | Abb技术有限公司 | Implementing substation automation load transfer function |
| CN102510127A (en) * | 2011-10-21 | 2012-06-20 | 南京南瑞继保电气有限公司 | Method for unifying models of on-line monitored first and secondary equipment of power grid |
| CN103928926A (en) * | 2014-04-28 | 2014-07-16 | 国网宁夏电力公司宁东供电公司 | Load transferring system and method during power distribution network fault |
| CN104467176A (en) * | 2014-08-19 | 2015-03-25 | 深圳供电局有限公司 | Power grid online monitoring method and system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104428A (en) * | 2017-03-07 | 2017-08-29 | 温州电力设计有限公司 | A kind of planing method for turning theory entirely based on full cut-off |
| CN107104428B (en) * | 2017-03-07 | 2019-08-13 | 温州电力设计有限公司 | A kind of planing method turning theory entirely based on full cut-off |
| CN107093017A (en) * | 2017-04-17 | 2017-08-25 | 中国南方电网有限责任公司 | The business datum acquisition methods and its device and system of power-off event |
| CN107093017B (en) * | 2017-04-17 | 2018-02-09 | 中国南方电网有限责任公司 | The business datum acquisition methods and its device and system of power-off event |
| CN107681780A (en) * | 2017-09-07 | 2018-02-09 | 广东电网有限责任公司佛山供电局 | A kind of power network section monitors and turns to supply tactful intelligent generating system and method |
| CN107681780B (en) * | 2017-09-07 | 2020-07-14 | 广东电网有限责任公司佛山供电局 | Intelligent generation system and method for power grid section monitoring and transfer strategy |
| CN117013701A (en) * | 2023-08-08 | 2023-11-07 | 国网安徽省电力有限公司 | Power quality monitoring method and system for power management |
| CN117013701B (en) * | 2023-08-08 | 2024-04-02 | 国网安徽省电力有限公司 | Power quality monitoring method and system for power management |
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