CN104753063A - Transformer substation bus load transferring method and system - Google Patents
Transformer substation bus load transferring method and system Download PDFInfo
- Publication number
- CN104753063A CN104753063A CN201510194317.8A CN201510194317A CN104753063A CN 104753063 A CN104753063 A CN 104753063A CN 201510194317 A CN201510194317 A CN 201510194317A CN 104753063 A CN104753063 A CN 104753063A
- Authority
- CN
- China
- Prior art keywords
- load transfer
- prediction scheme
- transfer plan
- distribution network
- plan establishment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000012546 transfer Methods 0.000 claims description 260
- 238000007363 ring formation reaction Methods 0.000 claims description 40
- 230000001143 conditioned effect Effects 0.000 claims description 35
- 230000005611 electricity Effects 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000012937 correction Methods 0.000 claims description 5
- 238000012795 verification Methods 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims description 4
- 238000007142 ring opening reaction Methods 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
-
- H02J3/005—
-
- 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
- H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a transformer substation bus load transferring method and system. The transformer substation bus load transferring method includes: acquiring a load transferring compiled plan of a power distribution network line, wherein the load transferring compiled plan includes a ring closing plan and a ring opening plan; judging whether the load transferring compiled plan meets a first preset condition or not; when a transformer substation bus needs to be transferred and the load transferring compiled plan meets the first preset condition, executing the ring closing plan to perform ring network operation on the line in a corresponding ring closing area; after the ring closing plan is executed successfully, executing the ring opening plan to perform ring opening operation on the line in the corresponding ring opening area. Compared with a method for sequentially realizing load transferring of the transformer substation bus point by point and line by line in the prior art, the transformer substation bus load transferring method and system has the advantages that load transferring time is reduced, and workload of scheduling personnel is reduced.
Description
Technical field
The present invention relates to distribution network technology field, more particularly, relate to a kind of substation bus bar load transfer plan method and system.
Background technology
Power System Security And Reliability runs the raising directly affecting the national economic development and living standards of the people.Therefore in order to find ahead of time the potential safety hazard in power distribution network, need regular to carry out repair and maintenance for the power equipment in power distribution network.Wherein, substation bus bar maintenance is one of content in station routine, and when substation bus bar overhauls, in order to ensure that transformer station is to user's continued power, before substation bus bar is overhauled, the distribution network load in bus downstream should be transferred to other power supply.
At present, when the distribution network load in bus downstream is transferred to other power supply, usually adopt the pointwise mode that performs of linewise one by one, control zygonema road interconnection switch, the mode disconnecting substation breakers realizes.Although existing load transfer plan method achieves the power supply distribution network load in bus downstream being transferred to other, it is thrown away exists many weak points, and e.g., load transfer plan method is consuming time partially long, and artificial customization load transfer plan establishment prediction scheme workload is huge.
In sum, how providing a kind of transfer time shortening the distribution network load in substation bus bar downstream, alleviate the workload of dispatcher, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the object of this invention is to provide a kind of substation bus bar load transfer plan method and system, in order to shorten the load transfer plan time, alleviate the workload of dispatcher.
To achieve these goals, the invention provides following technical scheme:
On the one hand, the invention provides a kind of substation bus bar load transfer plan method, comprising:
Obtain the load transfer plan establishment prediction scheme of distribution network line, described load transfer plan establishment prediction scheme comprises cyclization prediction scheme and prediction scheme of unlinking;
Judge that whether described load transfer plan establishment prediction scheme meets first pre-conditioned;
When described substation bus bar needs transfer, and when described load transfer plan work out prediction scheme meet described first pre-conditioned time, perform described cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After described cyclization prediction scheme runs succeeded, prediction scheme of unlinking described in execution, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.
Preferably, the load transfer plan establishment prediction scheme of described acquisition distribution network line comprises:
Obtain electricity distribution network model and power distribution network operational mode respectively;
The prediction scheme of described distribution network line is obtained according to described electricity distribution network model and described power distribution network operational mode;
All described prediction schemes are combined, to obtain described load transfer plan establishment prediction scheme.
Preferably, described method also comprises:
Real-Time Monitoring is carried out to the result after described load transfer plan establishment prediction scheme runs succeeded, to obtain the load factor change in load transfer plan circuit, and the heavy-haul line in described load transfer plan circuit is determined according to described load factor change, carry out secondary load transfer to point out dispatcher in time according to described heavy-haul line.
When the described load factor change in described load transfer plan circuit meet second pre-conditioned time, described power distribution network operational mode is reduced to acquiescence operational mode, and described acquiescence operational mode is the operational mode before described power distribution network bus carries out load transfer plan.
Preferably, describedly judge that whether described load transfer plan establishment prediction scheme meets first and pre-conditionedly to comprise:
Judge whether described load transfer plan establishment prediction scheme meets described power distribution network operational mode;
When described load transfer plan establishment prediction scheme does not meet described power distribution network operational mode, then regroup described load transfer plan establishment prediction scheme.
Preferably, describedly judge that whether described load transfer plan establishment prediction scheme meets first and pre-conditionedly also to comprise:
When described load transfer plan establishment prediction scheme meets described power distribution network operational mode, judge whether described load transfer plan establishment prediction scheme can cause the heavy duty of power distribution network regular link after performing;
The heavy duty of power distribution network regular link can be caused after described load transfer plan establishment prediction scheme performs, then regroup described load transfer plan establishment prediction scheme.
Preferably, describedly judge that whether described load transfer plan establishment prediction scheme meets first and pre-conditionedly also to comprise:
The heavy duty of power distribution network regular link can not be caused after described load transfer plan establishment prediction scheme performs, then judge whether described load transfer plan establishment prediction scheme can cause service area charged after performing;
Described service area can be caused charged after described load transfer plan establishment prediction scheme performs, then regroup described load transfer plan establishment prediction scheme;
Described service area can not be caused charged after described load transfer plan establishment prediction scheme performs, then perform described load transfer plan establishment prediction scheme.
On the other hand, present invention also offers a kind of substation bus bar load transfer plan system, comprising:
Forecasting edited module, for obtaining the load transfer plan establishment prediction scheme of distribution network line, described load transfer plan establishment prediction scheme comprises cyclization prediction scheme and prediction scheme of unlinking;
Regular prediction scheme correction verification module, first pre-conditioned for judging that whether described load transfer plan establishment prediction scheme meets;
Accident prediction Executive Module, for needing transfer when described substation bus bar, and when described load transfer plan work out prediction scheme meet described first pre-conditioned time, perform described cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After described cyclization prediction scheme runs succeeded, prediction scheme of unlinking described in execution, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.
Preferably, described forecasting edited module comprises:
First acquiring unit, for obtaining electricity distribution network model and power distribution network operational mode respectively;
Second acquisition unit, for obtaining the prediction scheme of described distribution network line according to described electricity distribution network model and described power distribution network operational mode;
Assembled unit, for all described prediction schemes being combined, to obtain described load transfer plan establishment prediction scheme.
Preferably, described system also comprises:
Abnormality monitoring module, Real-Time Monitoring is carried out for the result after running succeeded to described load transfer plan establishment prediction scheme, to obtain the load factor change in load transfer plan circuit, and the heavy-haul line in described load transfer plan circuit is determined according to described load factor change, carry out secondary load transfer to point out dispatcher in time according to described heavy-haul line.
Preferably, described system also comprises:
Operational mode recovers module, for meet when the described load factor change in described load transfer plan circuit second pre-conditioned time, described power distribution network operational mode is reduced to acquiescence operational mode, and described acquiescence operational mode is the operational mode before described power distribution network bus carries out load transfer plan.
Compared with prior art, advantage of the present invention is as follows:
The invention provides a kind of substation bus bar load transfer plan method, first by obtaining the load transfer plan establishment prediction scheme of distribution network line, and it is first pre-conditioned to judge that whether load transfer plan establishment prediction scheme meets, when substation bus bar needs transfer, and when load transfer plan establishment prediction scheme meet first pre-conditioned time, perform cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After cyclization prediction scheme runs succeeded, perform prediction scheme of unlinking, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.Compared with realizing the method for substation bus bar load transfer plan in order with pointwise by-line in prior art, a kind of substation bus bar load transfer plan method provided by the invention, not only shortens the load transfer plan time, also reduces the workload of dispatcher.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
A kind of flow chart of a kind of substation bus bar load transfer plan method that Fig. 1 provides for the embodiment of the present invention;
The another kind of flow chart of a kind of substation bus bar load transfer plan method that Fig. 2 provides for the embodiment of the present invention;
The schematic diagram of a kind of transformer station load transfer plan establishment prediction scheme that Fig. 3 provides for the embodiment of the present invention;
The load transfer plan establishment prediction scheme implementation schematic diagram of the single line that Fig. 4 provides for the embodiment of the present invention;
A kind of sub-process figure of a kind of substation bus bar load transfer plan method that Fig. 5 provides for the embodiment of the present invention;
A kind of structural representation of a kind of substation bus bar load transfer plan system that Fig. 6 provides for the embodiment of the present invention;
One kernel texture schematic diagram of a kind of substation bus bar load transfer plan system that Fig. 7 provides for the embodiment of the present invention;
The another kind of structural representation of a kind of substation bus bar load transfer plan system that Fig. 8 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of substation bus bar load transfer plan method, please refer to Fig. 1, it illustrates a kind of flow chart of a kind of substation bus bar load transfer plan method that the embodiment of the present invention provides, can comprise the following steps:
Step 101: the load transfer plan establishment prediction scheme obtaining distribution network line.
Wherein, load transfer plan establishment prediction scheme comprises cyclization prediction scheme and prediction scheme of unlinking.
It should be noted that, the load transfer plan establishment prediction scheme in the embodiment of the present invention, for many load transfer plan circuits, namely when performing load transfer plan establishment prediction scheme, just directly achieves the synchronous transfer of many load transfer plan circuits.
Step 102: judge that whether load transfer plan establishment prediction scheme meets first pre-conditioned.
Load transfer plan establishment prediction scheme must meet first pre-conditioned when performing, otherwise directly thinks that load transfer plan establishment prediction scheme performs failure, then continue to regroup new load transfer plan and work out prediction scheme.Namely in embodiments of the present invention, first load transfer plan establishment prediction scheme is verified by the requirement first verifying rear execution, when meeting first and being pre-conditioned, could continue to perform this load transfer plan establishment prediction scheme.
Step 103: when substation bus bar needs transfer, and when load transfer plan establishment prediction scheme meet first pre-conditioned time, execution cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After cyclization prediction scheme runs succeeded, perform prediction scheme of unlinking, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.
Wherein, load transfer plan establishment prediction scheme meet first pre-conditioned after, perform load transfer plan establishment prediction scheme, because load transfer plan establishment prediction scheme comprises cyclization prediction scheme and prediction scheme of unlinking, and treat that load transfer plan circuit carries out cyclization and Open Loop Operation according to order, therefore need first to perform cyclization prediction scheme and perform prediction scheme of unlinking again.
The invention provides a kind of substation bus bar load transfer plan method, first by obtaining the load transfer plan establishment prediction scheme of distribution network line, and it is first pre-conditioned to judge that whether load transfer plan establishment prediction scheme meets, when substation bus bar needs transfer, and when load transfer plan establishment prediction scheme meet first pre-conditioned time, perform cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After cyclization prediction scheme runs succeeded, perform prediction scheme of unlinking, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.Compared with realizing the method for substation bus bar load transfer plan in order with pointwise by-line in prior art, a kind of substation bus bar load transfer plan method provided by the invention, not only shortens the load transfer plan time, also reduces the workload of dispatcher.
Please refer to Fig. 2, it illustrates the another kind of flow chart of a kind of substation bus bar load transfer plan method that the embodiment of the present invention provides, can comprise the following steps:
Step 201: the load transfer plan establishment prediction scheme obtaining distribution network line.
Wherein, load transfer plan establishment prediction scheme comprises cyclization prediction scheme and prediction scheme of unlinking.
In embodiments of the present invention, can obtain load transfer plan establishment prediction scheme in the following manner, it is specifically as follows:
Obtain electricity distribution network model and power distribution network operational mode respectively; Obtain the prediction scheme of distribution network line according to electricity distribution network model and power distribution network operational mode, and all prediction schemes are combined, to obtain load transfer plan establishment prediction scheme.
It should be noted that, the acquisition of electricity distribution network model and power distribution network operational mode obtains according to power distribution network SCADA system (Supervisory Control And Data Acquisition, data acquisition and supervisor control).Wherein, electricity distribution network model comprises power distribution network switch, distribution feeder section and distribution network load.Deciliter state of power distribution network operational mode assignment power network switch.
The embodiment of the present invention passes through model and the power distribution network operational mode of foundation power distribution network SCADA system automatic acquisition power distribution network, and obtained the prediction scheme of the load transfer plan of distribution network line by topology search according to the model of power distribution network and power distribution network operational mode, then by being combined to form load transfer plan establishment prediction scheme, namely in the present invention, the acquisition of load transfer plan establishment prediction scheme is formed automatically by power distribution network SCADA system, working out compared with the mode of prediction scheme with prior art by manually customizing load transfer plan, effectively alleviating the workload of dispatcher.
It should be noted that, load transfer plan establishment prediction scheme comprises cyclization (control is closed) and unlink (control point), namely the circuit interconnection switch in power distribution network is closed in control, make distribution network line loop-net operation, Kong Fen transformer station wire-outgoing breaker, make distribution network line solution inscription of loop, wherein, the schematic diagram of a kind of transformer station load transfer plan establishment prediction scheme according to Duan Tang transformer station 10kV power distribution network two buss lines provided in the embodiment of the present invention has been shown in Fig. 3.
Step 202: judge that whether load transfer plan establishment prediction scheme meets first pre-conditioned.
Step 203: when substation bus bar needs transfer, and when load transfer plan establishment prediction scheme meet first pre-conditioned time, execution cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After cyclization prediction scheme runs succeeded, perform prediction scheme of unlinking, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.
It should be noted that, the load transfer plan establishment prediction scheme that the embodiment of the present invention provides is the union performed based on many circuit prediction schemes, and is concurrence performance between many circuits, is independent of each other.On the basis of simultaneously carrying out shifting based on many bus load transfer circuits, the load transfer plan establishment prediction scheme implementation of the single line in many bus load transfer circuits as shown in Figure 4.
When single line has many prediction schemes, then first get rid of and performed failed prediction scheme, then select pending load transfer plan establishment prediction scheme according to the priority of load transfer plan establishment prediction scheme.When load transfer plan all in single line establishment prediction scheme all perform failed or current single line do not exist load transfer plan establishment prediction scheme time, then substation bus bar load transfer plan system will according to the current operational mode of power distribution network automatically generate provisional weight transfer establishment prediction scheme.
Wherein, the execution for the load transfer plan establishment prediction scheme of single line is that the priority of foundation load transfer plan establishment prediction scheme realizes, and the selection principle of its execution sequence is as follows:
Threshold value=power distribution network switch * 100+ turns for afterload rate;
It should be noted that, when threshold value is larger, then load transfer plan establishment prediction scheme priority is lower, therefore generally determines the processing sequence of load transfer plan establishment prediction scheme according to the size of threshold value.
Wherein, turn and can carry out estimating according to the historical data in power distribution network for afterload rate and obtain.
After determining pending load transfer plan establishment prediction scheme, judge that whether satisfied load transfer plan establishment prediction scheme is first pre-conditioned;
When load transfer plan establishment prediction scheme meet first pre-conditioned time, then the circuit interconnection switch in distribution network line is closed in control, if the interconnection switch failure of control zygonema road, then show that this load transfer plan establishment prediction scheme performs failure, then return the load transfer plan establishment prediction scheme reselecting and can perform, when after the interconnection switch success of control zygonema road, Ze Kongfen transformer station wire-outgoing breaker, when the wire-outgoing breaker failure of Kong Fen transformer station, then return the load transfer plan establishment prediction scheme reselecting and can perform, when after the wire-outgoing breaker success of Kong Fen transformer station, then the load transfer plan establishment prediction scheme of single line runs succeeded.Because single line can have many load transfer plan circuits, namely there is multiple load transfer plan establishment prediction scheme, therefore perform other load transfer plan establishment prediction scheme according to priority again after executing a corresponding load transfer plan establishment prediction scheme.
It should be noted that, in the diagram, load transfer plan establishment prediction scheme can be divided into 2 classes, as preferred prediction scheme and prediction scheme for subsequent use, wherein, preferred prediction scheme is the pending load transfer plan establishment prediction scheme determined according to the priority of load transfer plan establishment prediction scheme, and prediction scheme for subsequent use is the load transfer plan establishment prediction scheme except preferred prediction scheme.Load transfer plan establishment prediction scheme meet first pre-conditioned time, perform load transfer plan establishment prediction scheme, according to sequencing, first carry out Loop Closing Operation, if Loop Closing Operation failure, from prediction scheme for subsequent use, select the load transfer plan establishment prediction scheme that can perform, if Loop Closing Operation success, then continue to perform Open Loop Operation, if Open Loop Operation failure, then perform the load transfer plan establishment prediction scheme of other load transfer plan circuits, if Loop Closing Operation and the equal successful operation of Open Loop Operation, then illustrate that load transfer plan establishment prediction scheme runs succeeded, after the load transfer plan establishment prediction scheme of place circuit is complete, then continue the load transfer plan establishment prediction scheme performing All other routes.
Step 204: Real-Time Monitoring is carried out to the result after load transfer plan establishment prediction scheme runs succeeded, to obtain the load factor change in load transfer plan circuit, and the heavy-haul line in load transfer plan circuit is determined according to load factor change, carry out secondary load transfer to point out dispatcher in time according to heavy-haul line.
When there is heavy-haul line in load transfer plan circuit, then need to carry out secondary load transfer to it, and the process of secondary load transfer is identical with the method that load transfer plan circuit first time carries out load transfer plan.
Step 205: when in load transfer plan circuit load factor change meet second pre-conditioned time, power distribution network operational mode is reduced to acquiescence operational mode.
Acquiescence operational mode is the operational mode before power distribution network bus carries out load transfer plan.
It should be noted that, the second pre-conditioned load transfer plan establishment prediction scheme that is runs succeeded.
A kind of substation bus bar load transfer plan method that the embodiment of the present invention provides, the execution of transformer station's load transfer plan establishment prediction scheme is the union that many line load transfer establishment prediction schemes perform, concurrence performance between many circuits, be independent of each other, thus significantly improve the execution speed of prediction scheme, and changed by the load factor of real time monitoring distribution network load transfer circuit, distribution network line heavy service is effectively prevented to cause power distribution network generation power outage, record the recovery process of dead line in power distribution network simultaneously, and after service work terminates, intelligence completes power distribution network operational mode and recovers.
Please refer to Fig. 5, it illustrates a kind of sub-process figure of the emergent quick emergent treatment system of a kind of transformer station power failure that the embodiment of the present invention provides, can comprise the following steps:
Step 301: judge whether load transfer plan establishment prediction scheme meets power distribution network operational mode, if not, then perform step 302; If so, then step 303 is performed.
Step 302: when load transfer plan establishment prediction scheme does not meet power distribution network operational mode, then regroup load transfer plan establishment prediction scheme.
Step 303: when load transfer plan establishment prediction scheme meets power distribution network operational mode, judges whether load transfer plan establishment prediction scheme can cause the heavy duty of power distribution network regular link after performing, and if not, then performs step 304; If so, then step 305 is performed.
Step 304: can cause the heavy duty of power distribution network regular link after load transfer plan establishment prediction scheme performs, then regroup load transfer plan establishment prediction scheme.
Step 305: can not cause the heavy duty of power distribution network regular link after load transfer plan establishment prediction scheme performs, then judge whether load transfer plan establishment prediction scheme can cause service area charged after performing, and if not, then performs step 306; If so, then step 307 is performed.
Step 306: service area can be caused charged after load transfer plan establishment prediction scheme performs, then regroup load transfer plan establishment prediction scheme.
Step 307: service area can not be caused charged after load transfer plan establishment prediction scheme performs, then perform load transfer plan establishment prediction scheme.
It should be noted that, when work of transformer substation, in transformer station, also to there is the service area that its equipment is overhauled.
Wherein, the first pre-conditioned condition being the front demand fulfillment of load transfer plan establishment prediction scheme execution, that is: load transfer plan establishment prediction scheme needs to be consistent with the state of the current operation of power distribution network, the regular link heavy duty in distribution network line can not be caused after load transfer plan establishment prediction scheme performs, after load transfer plan establishment prediction scheme performs, service area can not be caused charged.It should be noted that, in embodiments of the present invention, only have when load transfer plan establishment prediction scheme meet first pre-conditioned time, just can continue to perform this load transfer plan establishment prediction scheme.
Corresponding with the embodiment of said method, the embodiment of the present invention additionally provides a kind of substation bus bar load transfer plan system, please refer to Fig. 6, it illustrates a kind of structural representation of a kind of substation bus bar load transfer plan system that the embodiment of the present invention provides, described system can comprise: forecasting edited module 11, regularly prediction scheme correction verification module 12 and accident prediction Executive Module 13, wherein:
Forecasting edited module 11, for obtaining the load transfer plan establishment prediction scheme of distribution network line.
Wherein, forecasting edited module 11 can also comprise: the first acquiring unit 21, second acquisition unit 22 and assembled unit 23, please refer to Fig. 7, it illustrates a kernel texture schematic diagram of a kind of substation bus bar load transfer plan system that the embodiment of the present invention provides, wherein:
First acquiring unit 21, for obtaining electricity distribution network model and power distribution network operational mode respectively.
Second acquisition unit 22, for obtaining the prediction scheme of distribution network line according to electricity distribution network model and power distribution network operational mode.
Assembled unit 23, for all prediction schemes being combined, to obtain load transfer plan establishment prediction scheme.
Forecasting edited module 11 obtains electricity distribution network model and power distribution network operational mode according to power distribution network SCADA system.Be understandable that, load transfer plan establishment prediction scheme is formed in conjunction with electricity distribution network model and power distribution network operational mode, it is by the distribution network line of all 10kV in traversal transformer station, topology search is utilized to obtain the prediction scheme of distribution network line, again all prediction schemes are combined, just obtain transformer station's load transfer plan establishment prediction scheme.
Regular prediction scheme correction verification module 12, first pre-conditioned for judging that whether load transfer plan establishment prediction scheme meets.
Regular prediction scheme correction verification module 12 regularly travels through all 10kV circuits in transformer station, if the running status of load transfer plan establishment prediction scheme and current power distribution network is not inconsistent, then think that this load transfer plan establishment prediction scheme is invalid, then the load transfer plan establishment prediction scheme pointing out user to regroup circuit.
It should be noted that, so-called load transfer plan establishment prediction scheme and power distribution network current operating conditions be not inconsistent refers to load transfer plan work out in prediction scheme control switch-dividing current operating conditions for point, or to control combination switch current operating conditions be conjunction.
Accident prediction Executive Module 13, for needing transfer when substation bus bar, and when load transfer plan establishment prediction scheme meet first pre-conditioned time, execution cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After cyclization prediction scheme runs succeeded, perform prediction scheme of unlinking, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.
The invention provides a kind of substation bus bar load transfer plan system, first by obtaining the load transfer plan establishment prediction scheme of distribution network line, and it is first pre-conditioned to judge that whether load transfer plan establishment prediction scheme meets, when substation bus bar needs transfer, and when load transfer plan establishment prediction scheme meet first pre-conditioned time, perform cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After cyclization prediction scheme runs succeeded, perform prediction scheme of unlinking, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.Compared with realizing the system of substation bus bar load transfer plan in order with pointwise by-line in prior art, a kind of substation bus bar load transfer plan system provided by the invention, not only shortens the load transfer plan time, also reduces the workload of dispatcher.
Please refer to Fig. 8, it illustrates the another kind of structural representation of a kind of substation bus bar load transfer plan system that the embodiment of the present invention provides, on the basis of Fig. 6, can also comprise: abnormality monitoring module 14 and operational mode recover module 15, wherein:
Abnormality monitoring module 14, Real-Time Monitoring is carried out for the result after running succeeded to load transfer plan establishment prediction scheme, to obtain the load factor change in load transfer plan circuit, and the heavy-haul line in load transfer plan circuit is determined according to load factor change, carry out secondary load transfer to point out dispatcher in time according to heavy-haul line.
Be understandable that, after executing load transfer plan establishment prediction scheme, also need the effect after to execution to monitor in real time, with the change of load factor in the abnormal supply line of Timeliness coverage power distribution network, and then Timeliness coverage heavy-haul line.
It should be noted that, abnormal supply line refer to transformer station have an accident after the current power supply of dead line in power distribution network.
Operational mode recovers module 15, for when the load factor change in load transfer plan circuit satisfied second pre-conditioned time, power distribution network operational mode is reduced to acquiescence operational mode.
Acquiescence operational mode is the operational mode before power distribution network bus carries out load transfer plan.
A kind of substation bus bar load transfer plan system that the embodiment of the present invention provides, the execution of transformer station's load transfer plan establishment prediction scheme is the union that many line load transfer establishment prediction schemes perform, concurrence performance between many circuits, be independent of each other, thus significantly improve the execution speed of prediction scheme, and changed by the load factor of real time monitoring distribution network load transfer circuit, distribution network line heavy service is effectively prevented to cause power distribution network generation power outage, record the recovery process of dead line in power distribution network simultaneously, and after service work terminates, intelligence completes power distribution network operational mode and recovers.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the present invention.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a substation bus bar load transfer plan method, is characterized in that, comprising:
Obtain the load transfer plan establishment prediction scheme of distribution network line, described load transfer plan establishment prediction scheme comprises cyclization prediction scheme and prediction scheme of unlinking;
Judge that whether described load transfer plan establishment prediction scheme meets first pre-conditioned;
When described substation bus bar needs transfer, and when described load transfer plan work out prediction scheme meet described first pre-conditioned time, perform described cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After described cyclization prediction scheme runs succeeded, prediction scheme of unlinking described in execution, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.
2. method according to claim 1, is characterized in that, the load transfer plan establishment prediction scheme of described acquisition distribution network line comprises:
Obtain electricity distribution network model and power distribution network operational mode respectively;
The prediction scheme of described distribution network line is obtained according to described electricity distribution network model and described power distribution network operational mode;
All described prediction schemes are combined, to obtain described load transfer plan establishment prediction scheme.
3. method according to claim 1 and 2, is characterized in that, described method also comprises:
Real-Time Monitoring is carried out to the result after described load transfer plan establishment prediction scheme runs succeeded, to obtain the load factor change in load transfer plan circuit, and the heavy-haul line in described load transfer plan circuit is determined according to described load factor change, carry out secondary load transfer to point out dispatcher in time according to described heavy-haul line.
When the described load factor change in described load transfer plan circuit meet second pre-conditioned time, described power distribution network operational mode is reduced to acquiescence operational mode, and described acquiescence operational mode is the operational mode before described power distribution network bus carries out load transfer plan.
4. method according to claim 1, is characterized in that, describedly judges that whether described load transfer plan establishment prediction scheme meets first and pre-conditionedly to comprise:
Judge whether described load transfer plan establishment prediction scheme meets described power distribution network operational mode;
When described load transfer plan establishment prediction scheme does not meet described power distribution network operational mode, then regroup described load transfer plan establishment prediction scheme.
5. method according to claim 4, is characterized in that, describedly judges that whether described load transfer plan establishment prediction scheme meets first and pre-conditionedly also to comprise:
When described load transfer plan establishment prediction scheme meets described power distribution network operational mode, judge whether described load transfer plan establishment prediction scheme can cause the heavy duty of power distribution network regular link after performing;
The heavy duty of power distribution network regular link can be caused after described load transfer plan establishment prediction scheme performs, then regroup described load transfer plan establishment prediction scheme.
6. method according to claim 5, is characterized in that, describedly judges that whether described load transfer plan establishment prediction scheme meets first and pre-conditionedly also to comprise:
The heavy duty of power distribution network regular link can not be caused after described load transfer plan establishment prediction scheme performs, then judge whether described load transfer plan establishment prediction scheme can cause service area charged after performing;
Described service area can be caused charged after described load transfer plan establishment prediction scheme performs, then regroup described load transfer plan establishment prediction scheme;
Described service area can not be caused charged after described load transfer plan establishment prediction scheme performs, then perform described load transfer plan establishment prediction scheme.
7. a substation bus bar load transfer plan system, is characterized in that, comprising:
Forecasting edited module, for obtaining the load transfer plan establishment prediction scheme of distribution network line, described load transfer plan establishment prediction scheme comprises cyclization prediction scheme and prediction scheme of unlinking;
Regular prediction scheme correction verification module, first pre-conditioned for judging that whether described load transfer plan establishment prediction scheme meets;
Accident prediction Executive Module, for needing transfer when described substation bus bar, and when described load transfer plan work out prediction scheme meet described first pre-conditioned time, perform described cyclization prediction scheme, to carry out loop-net operation to the circuit in corresponding cyclization region; After described cyclization prediction scheme runs succeeded, prediction scheme of unlinking described in execution, to carry out solution inscription of loop to the circuit in corresponding region of unlinking.
8. system according to claim 7, is characterized in that, described forecasting edited module comprises:
First acquiring unit, for obtaining electricity distribution network model and power distribution network operational mode respectively;
Second acquisition unit, for obtaining the prediction scheme of described distribution network line according to described electricity distribution network model and described power distribution network operational mode;
Assembled unit, for all described prediction schemes being combined, to obtain described load transfer plan establishment prediction scheme.
9. the system according to claim 7 or 8, is characterized in that, described system also comprises:
Abnormality monitoring module, Real-Time Monitoring is carried out for the result after running succeeded to described load transfer plan establishment prediction scheme, to obtain the load factor change in load transfer plan circuit, and the heavy-haul line in described load transfer plan circuit is determined according to described load factor change, carry out secondary load transfer to point out dispatcher in time according to described heavy-haul line.
10. system according to claim 9, is characterized in that, described system also comprises:
Operational mode recovers module, for meet when the described load factor change in described load transfer plan circuit second pre-conditioned time, described power distribution network operational mode is reduced to acquiescence operational mode, and described acquiescence operational mode is the operational mode before described power distribution network bus carries out load transfer plan.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510194317.8A CN104753063A (en) | 2015-04-22 | 2015-04-22 | Transformer substation bus load transferring method and system |
| PCT/CN2015/092834 WO2016169240A1 (en) | 2015-04-22 | 2015-10-26 | Load transfer method and system for transformer substation bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510194317.8A CN104753063A (en) | 2015-04-22 | 2015-04-22 | Transformer substation bus load transferring method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104753063A true CN104753063A (en) | 2015-07-01 |
Family
ID=53592341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510194317.8A Pending CN104753063A (en) | 2015-04-22 | 2015-04-22 | Transformer substation bus load transferring method and system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104753063A (en) |
| WO (1) | WO2016169240A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169240A1 (en) * | 2015-04-22 | 2016-10-27 | 国网浙江省电力公司杭州供电公司 | Load transfer method and system for transformer substation bus |
| CN106787123A (en) * | 2016-12-06 | 2017-05-31 | 国网浙江省电力公司绍兴供电公司 | 30 degree of phase angle difference distribution lines do not have a power failure and turn to supply breaker group sequence method |
| CN107809118A (en) * | 2016-09-09 | 2018-03-16 | 贵州电网有限责任公司电力调度控制中心 | Design method of ring-opening scheme of electromagnetic ring network |
| CN108154310A (en) * | 2017-12-29 | 2018-06-12 | 国网北京市电力公司 | load transfer method, device, storage medium and processor |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947176B (en) * | 2018-01-10 | 2023-10-13 | 云南电网有限责任公司电力科学研究院 | Method and control system for closing loop and regulating electricity of power distribution network |
| CN110445135B (en) * | 2019-08-07 | 2023-05-09 | 国网天津市电力公司 | Hierarchical calculation method for load transfer capacity of power distribution network based on electrical structure and parameters |
| CN110705246A (en) * | 2019-08-28 | 2020-01-17 | 国网四川省电力公司成都供电公司 | Method for intelligently comparing and checking information of master station and transformer substation |
| CN111952970B (en) * | 2020-08-17 | 2024-03-19 | 云南电网有限责任公司电力科学研究院 | Method and device for closing loop and regulating electricity of power distribution network |
| CN112234603B (en) * | 2020-09-08 | 2023-01-24 | 广东电网有限责任公司江门供电局 | Heavy overload checking method for open-loop power grid load transfer decision |
| CN112417363B (en) * | 2020-11-11 | 2022-06-24 | 深圳供电局有限公司 | Load analysis method and system for transformer substation |
| CN113013877B (en) * | 2021-03-05 | 2024-03-12 | 国网安徽省电力有限公司黄山供电公司 | Method for providing loop closing and transferring between 35kV lines under phase difference condition |
| CN113363968B (en) * | 2021-05-26 | 2022-09-02 | 广东韶钢松山股份有限公司 | Method for transferring load of power distribution system of new and old transformer substation without power outage |
| CN113507116B (en) * | 2021-07-08 | 2022-07-22 | 国网河北省电力有限公司电力科学研究院 | Power distribution network load transfer method, device, equipment and storage medium |
| CN113872194B (en) * | 2021-09-28 | 2024-08-30 | 国网江苏省电力有限公司电力科学研究院 | Movable distribution line loop closing thermal reversing operation device and method |
| CN113890038B (en) * | 2021-09-29 | 2023-05-23 | 国网四川省电力公司成都供电公司 | Main network closed loop removing method based on dispatching control system |
| CN117293816B (en) * | 2023-10-10 | 2024-07-09 | 国网浙江省电力有限公司金华供电公司 | High-interconnection high-self-healing intelligent power distribution network construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219727A (en) * | 2013-04-01 | 2013-07-24 | 上海交通大学 | Divisional power grid structure dynamic adjustment method based on actual measurement of power management unit (PMU) |
| 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 |
| CN104201675A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Automatic load switching and restoring method for overloaded circuit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6549440B2 (en) * | 2001-07-19 | 2003-04-15 | Powerware Corporation | AC power supply apparatus and methods providing output control based on estimated instantaneous reactive power |
| CN102769338B (en) * | 2012-07-20 | 2014-04-30 | 国家电网公司 | Closed-loop operational control method for power distribution network |
| CN203895982U (en) * | 2013-12-10 | 2014-10-22 | 云南电网公司玉溪供电局 | Live-line load transfer system for distribution network circuit |
| CN104753063A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Transformer substation bus load transferring method and system |
-
2015
- 2015-04-22 CN CN201510194317.8A patent/CN104753063A/en active Pending
- 2015-10-26 WO PCT/CN2015/092834 patent/WO2016169240A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219727A (en) * | 2013-04-01 | 2013-07-24 | 上海交通大学 | Divisional power grid structure dynamic adjustment method based on actual measurement of power management unit (PMU) |
| 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 |
| CN104201675A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Automatic load switching and restoring method for overloaded circuit |
Non-Patent Citations (2)
| Title |
|---|
| 徐国辉: "合环倒电技术在10KV配电网中的应用研究", 《中国电业（技术版）》 * |
| 蔡一骏 等: "110KV旁路母线转供负荷操作方法的分析", 《电工技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169240A1 (en) * | 2015-04-22 | 2016-10-27 | 国网浙江省电力公司杭州供电公司 | Load transfer method and system for transformer substation bus |
| CN107809118A (en) * | 2016-09-09 | 2018-03-16 | 贵州电网有限责任公司电力调度控制中心 | Design method of ring-opening scheme of electromagnetic ring network |
| CN107809118B (en) * | 2016-09-09 | 2019-06-28 | 贵州电网有限责任公司电力调度控制中心 | Design method of ring-opening scheme of electromagnetic ring network |
| CN106787123A (en) * | 2016-12-06 | 2017-05-31 | 国网浙江省电力公司绍兴供电公司 | 30 degree of phase angle difference distribution lines do not have a power failure and turn to supply breaker group sequence method |
| CN106787123B (en) * | 2016-12-06 | 2019-06-25 | 国网浙江省电力公司绍兴供电公司 | 30 degree of phase angle difference distribution lines, which do not have a power failure, to be turned for breaker group sequence method |
| CN108154310A (en) * | 2017-12-29 | 2018-06-12 | 国网北京市电力公司 | load transfer method, device, storage medium and processor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016169240A1 (en) | 2016-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104753063A (en) | Transformer substation bus load transferring method and system | |
| CN107846011B (en) | Power distribution network fault recovery method based on main and distribution network cooperative control | |
| CN104751300A (en) | Method and system for quick emergency handling of power outage of transformer substation | |
| CN110138092B (en) | Substation sequence control system and method with master station safety check regulation and control function | |
| CN109459664A (en) | A kind of detection of distribution network failure and positioning analysis system | |
| CN105470928A (en) | Zoned and layered load transferring method based on urban power transmission network fault recovery | |
| CN103138390A (en) | Power distribution network fault handling method based on self-recovering control | |
| CN102270837B (en) | Network failure reconstruction method suitable for airplane distributed distribution system | |
| CN102088209A (en) | Self-healing control method of distribution network | |
| CN110224495A (en) | Power distribution station intelligent fault reports and submits system | |
| CN103426128A (en) | Self-adaptation relay protection constant value switching method based on power distribution network dispatching system | |
| CN204089179U (en) | Radial pattern power distribution network self-healing control system | |
| CN105576660A (en) | Region power distribution network on-line simulation analysis device and system | |
| CN113159598A (en) | Method and device for rush repair and scheduling of transformer area faults and terminal equipment | |
| CN105429297A (en) | Multi-operation mode controlling and switching method for micro-grid | |
| CN103426033A (en) | Power distribution network fault recovery optimization rebuilding algorithm based on critical path method | |
| CN103607042A (en) | Power distribution network fault processing method for suburb long overhead line-oriented fault indicator | |
| CN107069964B (en) | A kind of intelligent distributed FA and master station-centralized FA Synergistic method | |
| CN104331777A (en) | Error-preventing management system for county level power grid dispatching operation | |
| CN104778632A (en) | Intelligent decision making aiding method and system for transfer power supply | |
| CN203368127U (en) | Spare power automatic switching control equipment for transformer substation network | |
| CN102243280A (en) | FDIR (fault detection, isolation and reconfiguration)-based fault diagnosis method for power system | |
| CN105337314A (en) | Multisource coordination control fault treatment method based on distributed power supply black start technology | |
| CN106026047A (en) | Optimized control method of high-reliability distribution automation based on multi-source coordination and cooperation | |
| CN103944166B (en) | Area power grid reconstructing method based on single transformer station power supply mode collection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150701 |