CN106208083A - A kind of method and device obtaining THE UPFC configuration - Google Patents
A kind of method and device obtaining THE UPFC configuration Download PDFInfo
- Publication number
- CN106208083A CN106208083A CN201610879312.3A CN201610879312A CN106208083A CN 106208083 A CN106208083 A CN 106208083A CN 201610879312 A CN201610879312 A CN 201610879312A CN 106208083 A CN106208083 A CN 106208083A
- Authority
- CN
- China
- Prior art keywords
- upfc
- circuit
- configuration
- thermally
- determines
- 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.)
- Granted
Links
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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Embodiments provide a kind of method and device obtaining THE UPFC configuration.The method includes: is distributed according to the trend of circuit, determines the configuration circuit of at least two THE UPFC UPFC；Determine the method for operation and the configuration parameter of UPFC of described UPFC configuration circuit；The method of operation determined by according to and configuration parameter carry out accident analysis to described UPFC configuration circuit, it is thus achieved that described UPFC configures circuit power flow transfer state after a failure；UPFC configuration circuit corresponding for optimal described power flow transfer state is defined as final configuration mode.The embodiment of the present invention is distributed rationally by the UPFC of multichannel and the multiple method of operation, has equalized the trend distribution of section, has improve thermally-stabilised nargin, improve ability to transmit electricity to greatest extent.
Description
Technical field
The present invention relates to technical field of power systems, particularly relate to a kind of acquisition THE UPFC (Unified
Power Flow Controller, UPFC) method and device that configures.
Background technology
In the evolution of power system, the advantage of Power System Interconnection progressively displays.Power System Interconnection contributes to realizing
Two things diametrically opposed to each other and regional complementarity, reach more reasonably to utilize the purpose of the energy.China's electrical network has realized national network the most, and
Actively development exchange 1000kV and direct current ± 800kV extra-high voltage project, its purpose is contemplated to strengthen further between each electrical network
Contact, it is achieved distributing rationally of resource.Also create after Power System Interconnection that such as interconnection tie power fluctuation, accident are chain involves electricity
The problems such as magnet ring net circulation.These problems control to bring new challenge to running of electrical network, the most often draw
Sending out the chain reaction of the system failure, cause the accident expanded range.
Along with the further reinforcement of China's 500kV main grid structure, the interconnection between each province is strengthened therewith.But,
Near extra-high voltage drop point, trend is collected or is sent and more concentrates, and causes the trend skewness of each passage in province's discontinuity surface to weigh.
When the double-circuit line that trend is heavier occurs N-1 fault (disconnecting after a line fault), its power is mainly transferred to and its electricity
An other loop line road on the same passage that gas is close together, causes the other heavy duty of loop line road or an overload, and due to circuit
The restriction of the thermally-stabilised limit, trend skewness weighing apparatus makes end face between province can not make full use of the ability to transmit electricity of circuit, causes defeated
Power declines.Wherein, the thermally-stabilised limit is the current capacity of circuit, circuit the maximum temperature that can bear for a long time is certainly
Fixed.
UPFC is flexible AC transmitting system (Flexible Alternative Current Transmission
Systems, FACTS) the most complicated in family be also the most attractive a kind of compensator, it combines many FACTS devices
Flexible control device it is considered to be the most creative, and the FACTS element that function is the most powerful.UPFC is by the change of current by one
The alternating voltage that device produces seals in and is added in power transmission line phase voltage so that it is amplitude and phase angle all can consecutive variations, thus realize line
The meritorious accurate regulation with reactive power in road, can realize equalizing trend distribution, raising electric network transportation ability and damping system and shake
The effect swung.
Therefore, how electrical network obtains rational UPFC configuration and equalizes trend distribution, and then improve electrical network conveying energy
Power just becomes particularly important.
Summary of the invention
The embodiment of the present invention provides a kind of method and device obtaining unified UPFC configuration, it is possible to equilibrium trend distribution, enters
And improve electric network transportation ability.
In order to solve the problems referred to above, the invention discloses a kind of method obtaining THE UPFC configuration, including:
Trend distribution according to circuit, determines the configuration circuit of at least two THE UPFC UPFC；
Determine the method for operation and the configuration parameter of UPFC of described UPFC configuration circuit；
The method of operation determined by according to and configuration parameter carry out accident analysis to described UPFC configuration circuit, it is thus achieved that described
UPFC configures circuit power flow transfer state after a failure；
UPFC configuration circuit corresponding for optimal described power flow transfer state is defined as final configuration mode.
Further, the described trend according to circuit is distributed, and determines the layout line of at least two THE UPFC UPFC
Road, including:
According to the trend before described line fault and the thermally-stabilised limit, determine the load state of described circuit；
According to the trend after described line fault and the thermally-stabilised limit, add up the thermally-stabilised nargin of described circuit；
In meeting pre-conditioned circuit, determine configuration UPFC's according to described load state and described thermally-stabilised nargin
Circuit；
On the circuit of described configuration UPFC, according to the direction of tide of circuit and the anti-distribution of the height of circuit, determine described
UPFC arranges position.
Further, described determine according to described load state and described thermally-stabilised nargin in meeting pre-conditioned circuit
The circuit of configuration UPFC, including:
According to described load state and described thermally-stabilised in the circuit not configuring flexible AC transmitting system FACTS equipment
Nargin determines the circuit of configuration UPFC.
Further, the described method of operation determining described UPFC configuration circuit and the configuration parameter of UPFC, including:
According to the through-flow electric current of described UPFC, determine reference voltage and the capacity of described UPFC of described UPFC；
Trend according to the circuit before configuring described UPFC is distributed, and determines control model and the circuit of described UPFC series connection end
Control the initial value of parameter；
Reactive power exchange according to described UPFC Yu system determines the control model of described UPFC parallel connected end.
Further, the control model of described UPFC parallel connected end is for determine Reactive Power Control pattern.
Further, the method for operation determined by described basis and configuration parameter carry out fault to described UPFC configuration circuit and divide
Analysis, it is thus achieved that described UPFC configures circuit power flow transfer state after a failure, including:
The method of operation determined by according to and configuration parameter, adjust the double-circuit line trend of described UPFC configuration circuit, system
The thermally-stabilised nargin of an other loop line in described double-circuit line after meter N-1 fault；
Obtaining the ratio of described thermally-stabilised nargin and described UPFC capacity, wherein, described ratio is used for characterizing described trend
Transfering state.
The invention also discloses a kind of device obtaining THE UPFC configuration, including:
Circuit determines unit, is distributed for the trend according to circuit, determines at least two THE UPFC UPFC
Configuration circuit；
Parameter determination unit, for determining the method for operation and the configuration parameter of UPFC of described UPFC configuration circuit；
Analytic unit, carries out fault for the method for operation determined by basis and configuration parameter to described UPFC configuration circuit
Analyze, it is thus achieved that described UPFC configures circuit power flow transfer state after a failure；
Configuration determines unit, for being defined as final by UPFC configuration circuit corresponding for optimal described power flow transfer state
Configuration mode.
Further, described circuit determines that unit includes:
Load determines subelement, for according to the trend before described line fault and the thermally-stabilised limit, determines described circuit
Load state；
Statistics subelement, for according to the trend after described line fault and the thermally-stabilised limit, adds up the heat of described circuit
Stability margin；
Route determines subelement, in meeting pre-conditioned circuit according to described load state and described thermally-stabilised
Nargin determines the circuit of configuration UPFC；
Position determines subelement, at the circuit of described configuration UPFC, according to the direction of tide of circuit and circuit
High anti-distribution, determines that described UPFC's arranges position.
Further, described route determines subelement, at the circuit not configuring flexible AC transmitting system FACTS equipment
The middle circuit determining configuration UPFC according to described load state and described thermally-stabilised nargin.
Further, described parameter determination unit includes:
First determines subelement, for the through-flow electric current according to described UPFC, determines reference voltage and the institute of described UPFC
State the capacity of UPFC；
Second determines subelement, for being distributed according to the trend of the circuit before configuring described UPFC, determines that described UPFC goes here and there
The control model of connection end and circuit control the initial value of parameter；
3rd determines subelement, for determining the control of described UPFC parallel connected end according to the reactive power exchange of described UPFC Yu system
Molding formula.
Further, the control model of described UPFC parallel connected end is for determine Reactive Power Control pattern.
Further, described analytic unit includes:
Adjust subelement, for the method for operation and configuration parameter determined by basis, adjust described UPFC configuration circuit
Double-circuit line trend, the thermally-stabilised nargin of an other loop line in described double-circuit line after statistics N-1 fault；
Obtaining subelement, for obtaining the ratio of described thermally-stabilised nargin and described UPFC capacity, wherein, described ratio is used
In characterizing described power flow transfer state.
Compared with prior art, the embodiment of the present invention includes advantages below:
The embodiment of the present invention is distributed rationally by the UPFC of multichannel and the multiple method of operation, has equalized the trend of section
Distribution, improves thermally-stabilised nargin, improves ability to transmit electricity to greatest extent.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of a kind of embodiment of the method obtaining UPFC configuration of the present invention；
Fig. 2 is the flow chart of steps of a kind of embodiment of the method obtaining UPFC configuration route；
Fig. 3 is certain year Hebei power system rack schematic diagram；
Fig. 4 is the step of the embodiment of the method for the configuration parameter of a kind of method of operation determining UPFC configuration circuit and UPFC
Flow chart；
Fig. 5 is the steps flow chart of a kind of embodiment of the method obtaining UPFC configuration circuit power flow transfer state after a failure
Figure；
Fig. 6 is that under certain year basal profile, UPFC distributes-Xin An N-1 fault rear section, front Lucheng circuit active power song rationally
Line；
Fig. 7 is to use-Xin An N-1 fault rear portion, Lucheng after embodiment of the present invention UPFC collocation method under certain year basal profile
Separated time road active power curves；
Fig. 8 is the structured flowchart of a kind of device embodiment obtaining THE UPFC configuration；
Fig. 9 is the structured flowchart that a kind of circuit determines the embodiment of unit；
Figure 10 is the structured flowchart of the embodiment of a kind of parameter determination unit；
Figure 11 is the structured flowchart of the embodiment of a kind of analytic unit.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, real with concrete below in conjunction with the accompanying drawings
The present invention is further detailed explanation to execute mode.
With reference to Fig. 1, it is shown that the flow chart of steps of a kind of embodiment of the method obtaining UPFC of the present invention, specifically can wrap
Include following steps:
Step 101, is distributed according to the trend of circuit, determines that at least two UPFC configures circuit.
The embodiment of the present invention is in order to solve important line section tidal current skewness weighing apparatus in electrical network, for meeting the thermally-stabilised limit
Requirement, and the problem causing section ability to transmit electricity to decline, distributed rationally by the UPFC of multi-line and the multiple method of operation, real
Show the ability to transmit electricity improving circuit to greatest extent.
In this step, first have to filter out in existing network system be likely to result in important section circuit heavy duty surpass
The circuit of overheated stability limit, then carries out UPFC configuration on these circuits, equalizes trend distribution.
Determine that the method for configuration circuit has a lot, can be specifically that the trend distribution according to each circuit determines that UPFC joins
Put circuit.
As in figure 2 it is shown, the method obtaining UPFC configuration route for one of which, including:
Step 201, according to the trend before line fault and the thermally-stabilised limit, determines the load state of circuit.
First this step is distributed according to the trend before each line fault determines the loading condition of each circuit, be underloading also
It it is heavy duty.The trend distribution of circuit specifically can include the trend of circuit and the thermally-stabilised limit of this circuit.Wherein, line fault
Front trend can be obtained by existing tidal current survey (such as RTU, remote terminal terminal, data acquisition unit) and computational methods,
Specifically can include one of following or combination in any: voltage and current (amplitude, phase angle), active power and the idle merit of circuit
Rate etc..The thermally-stabilised limit of circuit can arrange acquisition according to the thermally-stabilised limit of circuit itself.
After the trend knowing each circuit and the thermally-stabilised limit, can thermally-stabilised according to the size of trend and correspondence thereof
The loading condition of circuit is judged by limit size, such as, can set previously according to the ratio etc. of trend with the thermally-stabilised limit
Underloading and the standard of load, be divided into underloading or heavy duty by each circuit.
Step 202, according to the trend after line fault and the thermally-stabilised limit, the thermally-stabilised nargin of statistics circuit.
This step can be after there is N-1 fault in circuit, it is thus achieved that the trend of circuit and the thermally-stabilised limit, and then calculates acquisition
The thermally-stabilised nargin of circuit.Thermally-stabilised nargin computing formula is as follows:
Thermally-stabilised nargin=1-trend/thermally-stabilised limit
In this formula, if thermally-stabilised nargin is more than zero, then it represents that N-1 fault under which, the trend on an other loop line road
Level disclosure satisfy that the requirement of longtime running.If less than zero, then it represents that under which, additionally the trend level of circuit alreadys more than
The thermally-stabilised limit, and according to the difference beyond level, the throughput time of circuit will be inversely proportional to reduction therewith.
Can also carry out without inevitable sequencing between step 201 and step 202 simultaneously.
Step 203, determines configuration UPFC's according to load state and thermally-stabilised nargin in meeting pre-conditioned circuit
Circuit.
In this step, in order to avoid influencing each other between different power electronic equipments, string benefit etc. can not configured
The circuit of FACTS equipment determines the circuit of configuration UPFC according to load state and thermally-stabilised nargin.Concrete, can be in underloading
And configure UPFC circuit on the higher circuit of thermally-stabilised nargin.
Such as, build Hebei power system research level year mode data as Research foundation, rack schematic diagram such as Fig. 3 institute
Show.
Wherein Lucheng-Xin An loads 3200MW, Yangquan-Xibaipo load 2100MW.The pungent linear load of visible the Lushui River is heavier, and heat is steady
Determine nargin relatively low, and Yangquan-Xi Bai line load is lighter.In view of Yangquan-Xibaipo circuit also has higher thermally-stabilised nargin, because of
And consider in Yangquan-Xibaipo double loop installing UPFC device apply the tide of its power flowcontrol function optimization Shanxi Ji Sheng discontinuity surface
Flow distribution, to ensure that not having heavy-haul line after circuit occurs N-1 fault exceedes thermal stability limit.
500kV circuit in survey region does three N-1 analyses forever, and Lucheng stands near extra-high voltage drop point, and trend is sent relatively
For concentrating, cause each passage trend skewness in province's discontinuity surface.Lucheng-pungent wire arrangement road post-fault system transient stability is still
A large amount of power flow transfer cause Lucheng-Xin Anxianlu to exceed thermally-stabilised restriction to the Lushui River another loop line pungent.
By Yangquan-Xibaipo light load seen from other passages on analysis section, fail to make full use of the defeated of circuit
Power.When the heavier double-circuit line of trend occurs N-1, the power transfer that it bears is less and the Lushui River another loop line heavy duty merit pungent
Rate is relatively big, because the overheated steady heavier sag that generates heat that runs of circuit strengthens, if processing not in time, it would be possible to cascading failure occurs, is
System operation brings imponderable risk and loss.
Step 204, on the circuit of configuration UPFC, according to the direction of tide of circuit and the anti-distribution of the height of circuit, determines
UPFC arranges position.
In this step, first according to the direction of tide of circuit, UPFC can be arranged on sending end and the receiving end of circuit, and
Subsequent classification statistics is arranged on the situation of sending end and receiving end.This statistics, main consideration UPFC is separately mounted to sending end or receiving end, control
The effect of Line Flow processed and the difference of UPFC desired volume.
According to circuit existing height anti-distribution, UPFC can also be arranged on line side or bus bar side, and subsequent classification system
Meter is arranged on the situation of line side or bus bar side.This statistics, main consideration UPFC is separately mounted to line side or bus bar side, controls
The effect of Line Flow and the difference of UPFC desired volume.
Concrete, installed capacity and effect according to UPFC determine final UPFC infield.
After determining UPFC configuration circuit according to above-mentioned steps, continue executing with step 102.
Step 102, determines the method for operation and the configuration parameter of UPFC of UPFC configuration circuit.
In this step it needs to be determined that UPFC configures initial launch mode and the initial configuration parameters of UPFC of circuit.Specifically
As shown in Figure 4, may include that
Step 401, according to the through-flow electric current of UPFC, determines the reference voltage of UPFC and the capacity of UPFC.
Concrete, can be according to Load flow calculation after, the through-flow electric current of UPFC in power flow solutions, and keeping through-flow electric current big
Little not can exceed that UPFC capacity of equipment on the basis of, determine series transformer primary side and the reference voltage of secondary side of UPFC
Secondary side voltage with capacity and the shunt transformer of UPFC.
Step 402, according to the trend distribution of the circuit before configuration UPFC, determines control model and the circuit of UPFC series connection end
Control the initial value of parameter.
Concrete, according to the trend distribution of circuit before the requirement of UPFC tide model and configuration UPFC, can first will connect
End control model is set to alignment road power control mode, determines that circuit controls parameter P0, the isoparametric initial value of Q0.
Then, according to requirement and initial value P0, Q0 of circuit UPFC control parameter of UPFC tide model, by series connection end control
Molding formula is set to injecting voltage control model, Load flow calculation, draws injecting voltage U0 and the angle phi 0 of circuit UPFC.
Step 403, determines the control model of UPFC parallel connected end according to the reactive power exchange of UPFC Yu electrical network.
From the reactive power size of Systemic absorption, the control model of parallel connected end is determined according to parallel connected end after installing UPFC,
It is easily caused reactive power exchange excessive in view of the control model determining node voltage, the capacity of wayward UPFC, this parallel connected end
Control model generally determines Reactive Power Control pattern.
Without severe steps order between above step 401～403, can be parallel.
Step 103, according to determined by the method for operation and configuration parameter UPFC configuration circuit is carried out accident analysis, it is thus achieved that
UPFC configures circuit power flow transfer state after a failure.
Specifically can be as it is shown in figure 5, include:
Step 501, according to determined by the method for operation and configuration parameter adjust the double-circuit line trend of UPFC configuration circuit,
The thermally-stabilised nargin of an other loop line in double-circuit line after statistics N-1 fault.
Step 502, it is thus achieved that thermally-stabilised nargin and the ratio of UPFC capacity.
Wherein, thermally-stabilised nargin may be used for characterizing power flow transfer state with the ratio of UPFC capacity.
Thermally-stabilised nargin/UPFC the capacity of multiple UPFC configuration circuit can be obtained, so according to above-mentioned steps 501～502
Rear execution step 104.
Step 104, is defined as final configuration mode by UPFC configuration circuit corresponding for optimum load flow transfering state.
This step can be corresponding with the ratio of UPFC capacity by optimal heat stability margin in each UPFC configuration circuit
UPFC configuration circuit is defined as final UPFC configuration mode, i.e. in various modes, chooses thermally-stabilised nargin and UPFC capacity
The configuration that ratio is maximum, i.e. best allocation.
The embodiment of the present invention is distributed rationally by the UPFC of multichannel and the multiple method of operation, has equalized the trend of section
Distribution, improves thermally-stabilised nargin, improves ability to transmit electricity to greatest extent.
In another embodiment of the invention, the method can also include:
Scan all section channel, according to the method for above-described embodiment, each section channel is carried out UPFC and distribute rationally, and
Distributing rationally the effectiveness improving section ability to transmit electricity by corresponding failure proof UPFC.
Assess UPFC distribute rationally to improve section ability to transmit electricity effectiveness time, can come in terms of three below
Assessment:
The raising amount of the section Limiting Level of configuration UPFC；The raising amount of different passage configuration UPFC；Assessment UPFC is to disconnected
The impact etc. of the face limit.
In an instantiation, still to build Hebei power system research level year mode data as Research foundation, Fig. 3
As a example by shown rack schematic diagram.
Use UPFC configuration scheme, light-loaded circuit Yangquan-Xibaipo double loop that Jin Ji saves discontinuity surface is arranged
UPFC device, by setting effective power flow and the reactive power flow reference value of circuit, regulation series side voltage magnitude and phase angle, makes line
On road, effective power flow is controlled in designated value.It is less than thermally-stabilised constraint for reaching to optimize after section tidal current distribution meets N-1
Requirement, by Yangquan-Xibaipo double loop power flowcontrol of installing UPFC at 2*1900MW, thus reach the Lushui River pungent line normal mode
Lower load reduction, occurs N-1 Fault load flow to be less than thermal stability limit after being transferred to the Lushui River another time pungent, is controlled by UPFC simultaneously
The line power of trend is constant, and then reaches to optimize the section tidal current thermally-stabilised nargin of raising and section transmission of electricity energy by installing UPFC
The requirement of power.
Carry out UPFC and distribute before and after's section tidal current rationally as shown in table 1, before section tidal current is by configuring after configuration UPFC
5360MW improves to 6140MW, and section ability to transmit electricity improves 14.6%, and after the fault after distributing rationally trend all not less than line
The thermal stability limit on road.Fault simulation curve chart is as Figure 6-Figure 7.
Under certain year basal profile of table 1 before and after the-Xin An N-1 fault of Lucheng and UPFC configuration before and after part circuit wattful power
Rate contrast table
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as a series of action group
Closing, but those skilled in the art should know, the embodiment of the present invention is not limited by described sequence of movement, because depending on
According to the embodiment of the present invention, some step can use other orders or carry out simultaneously.Secondly, those skilled in the art also should
Knowing, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention implements
Necessary to example.
With reference to Fig. 8, it is shown that the structured flowchart of a kind of device embodiment obtaining THE UPFC configuration of the present invention,
Specifically may include that
Circuit determines unit 801, is distributed for the trend according to circuit, determines at least two THE UPFC UPFC
Configuration circuit；
Parameter determination unit 802, for determining the method for operation and the configuration parameter of UPFC of described UPFC configuration circuit；
Analytic unit 803, is carried out described UPFC configuration circuit for the method for operation determined by basis and configuration parameter
Accident analysis, it is thus achieved that described UPFC configures circuit power flow transfer state after a failure；
Configuration determines unit 804, for being defined as by UPFC configuration circuit corresponding for optimal described power flow transfer state
Whole configuration mode.
The UPFC that the embodiment of the present invention realizes multichannel and the multiple method of operation by said units distributes rationally, equilibrium
The trend distribution of section, improves thermally-stabilised nargin, improves ability to transmit electricity to greatest extent.
In another embodiment, as it is shown in figure 9, circuit determines that unit 801 may include that
Load determines subelement 901, for according to the trend before described line fault and the thermally-stabilised limit, determines described line
The load state on road；
Statistics subelement 902, for according to the trend after described line fault and the thermally-stabilised limit, adds up described circuit
Thermally-stabilised nargin；
Route determines subelement 903, is used in meeting pre-conditioned circuit according to described load state and described heat
Stability margin determines the circuit of configuration UPFC；
Position determines subelement 904, for the circuit at described configuration UPFC, according to direction of tide and the circuit of circuit
The anti-distribution of height, determine that described UPFC's arranges position.
Wherein, route determines subelement 903, in the circuit not configuring flexible AC transmitting system FACTS equipment
The circuit of configuration UPFC is determined according to described load state and described thermally-stabilised nargin.
In another embodiment, as shown in Figure 10, parameter determination unit 802 may include that
First determines subelement 1001, for the through-flow electric current according to described UPFC, determines the reference voltage of described UPFC
Capacity with described UPFC；
Second determines subelement 1002, for being distributed according to the trend of the circuit before configuring described UPFC, determines described
The control model of UPFC series connection end and circuit control the initial value of parameter；
3rd determines subelement 1003, for determining described UPFC parallel connected end according to the reactive power exchange of described UPFC Yu system
Control model.
Wherein, the control model of UPFC parallel connected end can be to determine Reactive Power Control pattern.
In another embodiment, as shown in figure 11, analytic unit 803 may include that
Adjust subelement 1101, for the method for operation and configuration parameter determined by basis, adjust described UPFC layout line
The double-circuit line trend on road, the thermally-stabilised nargin of an other loop line in described double-circuit line after statistics N-1 fault；
Obtain subelement 1102, for obtaining the ratio of described thermally-stabilised nargin and described UPFC capacity, wherein, described ratio
Value is used for characterizing described power flow transfer state.
For device embodiment, due to itself and embodiment of the method basic simlarity, so describe is fairly simple, relevant
Part sees the part of embodiment of the method and illustrates.
Each embodiment in this specification all uses the mode gone forward one by one to describe, what each embodiment stressed is with
The difference of other embodiments, between each embodiment, identical similar part sees mutually.
Those skilled in the art are it should be appreciated that the embodiment of the embodiment of the present invention can be provided as method, device or calculate
Machine program product.Therefore, the embodiment of the present invention can use complete hardware embodiment, complete software implementation or combine software and
The form of the embodiment of hardware aspect.And, the embodiment of the present invention can use one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) of program code
The form of the computer program implemented.
The embodiment of the present invention is with reference to method, terminal unit (system) and computer program according to embodiments of the present invention
The flow chart of product and/or block diagram describe.It should be understood that can be by computer program instructions flowchart and/or block diagram
In each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.These can be provided
Computer program instructions sets to general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to produce a machine so that held by the processor of computer or other programmable data processing terminal equipment
The instruction of row produces for realizing in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame
The device of the function specified.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing terminal equipment
In the computer-readable memory worked in a specific way so that the instruction being stored in this computer-readable memory produces bag
Including the manufacture of command device, this command device realizes in one flow process of flow chart or multiple flow process and/or one side of block diagram
The function specified in frame or multiple square frame.
These computer program instructions also can be loaded on computer or other programmable data processing terminal equipment so that
On computer or other programmable terminal equipment, execution sequence of operations step is to produce computer implemented process, thus
The instruction performed on computer or other programmable terminal equipment provides for realizing in one flow process of flow chart or multiple flow process
And/or the step of the function specified in one square frame of block diagram or multiple square frame.
Although having been described for the preferred embodiment of the embodiment of the present invention, but those skilled in the art once knowing base
This creativeness concept, then can make other change and amendment to these embodiments.So, claims are intended to be construed to
The all changes including preferred embodiment and falling into range of embodiment of the invention and amendment.
Finally, in addition it is also necessary to explanation, in this article, the relational terms of such as first and second or the like be used merely to by
One entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or operation
Between exist any this reality relation or order.And, term " includes ", " comprising " or its any other variant meaning
Containing comprising of nonexcludability, so that include that the process of a series of key element, method, article or terminal unit not only wrap
Include those key elements, but also include other key elements being not expressly set out, or also include for this process, method, article
Or the key element that terminal unit is intrinsic.In the case of there is no more restriction, by wanting that statement " including ... " limits
Element, it is not excluded that there is also other identical element in including the process of described key element, method, article or terminal unit.
Claims (10)
1. the method obtaining THE UPFC configuration, it is characterised in that including:
Trend distribution according to circuit, determines the configuration circuit of at least two THE UPFC UPFC；
Determine the method for operation and the configuration parameter of UPFC of described UPFC configuration circuit；
The method of operation determined by according to and configuration parameter carry out accident analysis to described UPFC configuration circuit, it is thus achieved that described UPFC
Configuration circuit power flow transfer state after a failure；
UPFC configuration circuit corresponding for optimal described power flow transfer state is defined as final configuration mode.
Method the most according to claim 1, it is characterised in that the described trend according to circuit is distributed, and determines at least two
The configuration circuit of THE UPFC UPFC, including:
According to the trend before described line fault and the thermally-stabilised limit, determine the load state of described circuit；
According to the trend after described line fault and the thermally-stabilised limit, add up the thermally-stabilised nargin of described circuit；
Determine the circuit of configuration UPFC according to described load state and described thermally-stabilised nargin in meeting pre-conditioned circuit；
On the circuit of described configuration UPFC, according to the direction of tide of circuit and the anti-distribution of the height of circuit, determine described UPFC's
Position is set.
Method the most according to claim 2, it is characterised in that described in meeting pre-conditioned circuit according to described negative
Load situation and described thermally-stabilised nargin determine the circuit of configuration UPFC, including:
According to described load state and described thermally-stabilised nargin in the circuit not configuring flexible AC transmitting system FACTS equipment
Determine the circuit of configuration UPFC.
Method the most as claimed in any of claims 1 to 3, it is characterised in that described determine described UPFC layout line
The method of operation on road and the configuration parameter of UPFC, including:
According to the through-flow electric current of described UPFC, determine reference voltage and the capacity of described UPFC of described UPFC；
Trend according to the circuit before configuring described UPFC is distributed, and determines that the control model of described UPFC series connection end and circuit control
The initial value of parameter；
Reactive power exchange according to described UPFC Yu system determines the control model of described UPFC parallel connected end.
Method the most according to claim 4, it is characterised in that the control model of described UPFC parallel connected end is for determine reactive power
Control model.
Method the most according to claim 4, it is characterised in that the method for operation and configuration parameter pair determined by described basis
Described UPFC configuration circuit carries out accident analysis, it is thus achieved that described UPFC configures circuit power flow transfer state after a failure, including:
The method of operation determined by according to and configuration parameter, adjust the double-circuit line trend of described UPFC configuration circuit, add up N-1
The thermally-stabilised nargin of an other loop line in described double-circuit line after fault；
Obtaining the ratio of described thermally-stabilised nargin and described UPFC capacity, wherein, described ratio is used for characterizing described power flow transfer
State.
7. the device obtaining THE UPFC configuration, it is characterised in that including:
Circuit determines unit, is distributed for the trend according to circuit, determines the configuration of at least two THE UPFC UPFC
Circuit；
Parameter determination unit, for determining the method for operation and the configuration parameter of UPFC of described UPFC configuration circuit；
Analytic unit, carries out fault for the method for operation determined by basis and configuration parameter to described UPFC configuration circuit and divides
Analysis, it is thus achieved that described UPFC configures circuit power flow transfer state after a failure；
Configuration determines unit, for UPFC configuration circuit corresponding for optimal described power flow transfer state is defined as final configuration
Mode.
Device the most according to claim 7, it is characterised in that described circuit determines that unit includes:
Load determines subelement, for according to the trend before described line fault and the thermally-stabilised limit, determining the negative of described circuit
Load situation；
Statistics subelement, for according to the trend after described line fault and the thermally-stabilised limit, adds up the thermally-stabilised of described circuit
Nargin；
Route determines subelement, is used in meeting pre-conditioned circuit according to described load state and described thermally-stabilised nargin
Determine the circuit of configuration UPFC；
Position determines subelement, for the circuit at described configuration UPFC, resists according to the direction of tide of circuit and the height of circuit
Distribution, determines that described UPFC's arranges position.
Device the most according to claim 8, it is characterised in that
Described route determines subelement, is used in the circuit not configuring flexible AC transmitting system FACTS equipment according to described
Load state and described thermally-stabilised nargin determine the circuit of configuration UPFC.
10. according to the device described in any one in claim 7 to 9, it is characterised in that described parameter determination unit includes:
First determines subelement, for according to the through-flow electric current of described UPFC, determines the reference voltage of described UPFC and described
The capacity of UPFC；
Second determines subelement, for being distributed according to the trend of the circuit before configuring described UPFC, determines described UPFC series connection end
Control model and circuit control parameter initial value；
3rd determines subelement, for determining the control mould of described UPFC parallel connected end according to the reactive power exchange of described UPFC Yu system
Formula；
The control model of described UPFC parallel connected end is for determine Reactive Power Control pattern.
Described analytic unit includes:
Adjust subelement, for the method for operation and configuration parameter determined by basis, adjust the double back of described UPFC configuration circuit
Line Flow, the thermally-stabilised nargin of an other loop line in described double-circuit line after statistics N-1 fault；
Obtaining subelement, for obtaining the ratio of described thermally-stabilised nargin and described UPFC capacity, wherein, described ratio is used for table
Levy described power flow transfer state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610879312.3A CN106208083B (en) | 2016-10-09 | 2016-10-09 | A kind of method and device obtaining THE UPFC configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610879312.3A CN106208083B (en) | 2016-10-09 | 2016-10-09 | A kind of method and device obtaining THE UPFC configuration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106208083A true CN106208083A (en) | 2016-12-07 |
| CN106208083B CN106208083B (en) | 2018-09-07 |
Family
ID=57521385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610879312.3A Active CN106208083B (en) | 2016-10-09 | 2016-10-09 | A kind of method and device obtaining THE UPFC configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106208083B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306300A (en) * | 2018-01-30 | 2018-07-20 | 中国电力科学研究院有限公司 | A kind of method and system for determining THE UPFC capacity on major network section |
| CN111564846A (en) * | 2020-05-21 | 2020-08-21 | 国网江西省电力有限公司电力科学研究院 | Green scheduling-oriented power flow optimization control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003174725A (en) * | 2001-12-04 | 2003-06-20 | Kansai Electric Power Co Inc:The | Distribution system voltage control method |
| CN101548447A (en) * | 2006-10-05 | 2009-09-30 | Abb研究有限公司 | Determination and use of power system sensitivities for power flow control |
| CN103166217A (en) * | 2011-12-13 | 2013-06-19 | 浙江省电力公司 | Transmission grid phase shifter optimal configuration method |
| CN105119269A (en) * | 2015-07-23 | 2015-12-02 | 国家电网公司 | Random power flow calculation method taking regard of multiterminal unified power flow controller |
| CN105186495A (en) * | 2015-08-31 | 2015-12-23 | 国家电网公司 | Power grid on-line data based running strategy optimization method for unified power flow controller |
| CN105552916A (en) * | 2015-12-17 | 2016-05-04 | 江苏省电力公司电力经济技术研究院 | UPFC (unified power flow controller) system-level control method with circuit power out-of-limit control function |
-
2016
- 2016-10-09 CN CN201610879312.3A patent/CN106208083B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003174725A (en) * | 2001-12-04 | 2003-06-20 | Kansai Electric Power Co Inc:The | Distribution system voltage control method |
| CN101548447A (en) * | 2006-10-05 | 2009-09-30 | Abb研究有限公司 | Determination and use of power system sensitivities for power flow control |
| CN103166217A (en) * | 2011-12-13 | 2013-06-19 | 浙江省电力公司 | Transmission grid phase shifter optimal configuration method |
| CN105119269A (en) * | 2015-07-23 | 2015-12-02 | 国家电网公司 | Random power flow calculation method taking regard of multiterminal unified power flow controller |
| CN105186495A (en) * | 2015-08-31 | 2015-12-23 | 国家电网公司 | Power grid on-line data based running strategy optimization method for unified power flow controller |
| CN105552916A (en) * | 2015-12-17 | 2016-05-04 | 江苏省电力公司电力经济技术研究院 | UPFC (unified power flow controller) system-level control method with circuit power out-of-limit control function |
Non-Patent Citations (1)
| Title |
|---|
| 刘新 等: "统一潮流控制器(UPFC)装置选址和定容研究", 《中国高等学校电力***及其自动化专业第二十四届学术年会论文集（上册）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306300A (en) * | 2018-01-30 | 2018-07-20 | 中国电力科学研究院有限公司 | A kind of method and system for determining THE UPFC capacity on major network section |
| CN108306300B (en) * | 2018-01-30 | 2020-09-01 | 中国电力科学研究院有限公司 | Method and system for determining capacity of unified power flow controller on main network section |
| CN111564846A (en) * | 2020-05-21 | 2020-08-21 | 国网江西省电力有限公司电力科学研究院 | Green scheduling-oriented power flow optimization control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106208083B (en) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Farivar et al. | Optimal inverter VAR control in distribution systems with high PV penetration | |
| Xia et al. | Direct nonlinear primal–dual interior-point method for transient stability constrained optimal power flow | |
| CN102280889B (en) | Method for reactive power optimization of electric power system on basis of clone-particle swarm hybrid algorithm | |
| Sheng et al. | CDFLOW: A practical tool for tracing stationary behaviors of general distribution networks | |
| CN103326354B (en) | Closed loop power distribution network tide estimation method based on load moment | |
| CN103795068A (en) | Optimal configuration method for high-voltage distribution network dynamic reactive power compensation equipment capacity | |
| CN104779609B (en) | A kind of trend cooperative control method for interconnected network | |
| Gad et al. | Optimal location of TCSC by sensitivity methods | |
| CN103715687B (en) | The congested real-time control method of a kind of active distribution network branch power | |
| CN106208083A (en) | A kind of method and device obtaining THE UPFC configuration | |
| Yan et al. | Analysis of radial distribution systems with embedded series FACTS devices using a fast line flow-based algorithm | |
| Rathi et al. | Loss minimization with D-FACTS devices using sensitivity based technique | |
| Jadhao et al. | Performance improvement of power system through Static VAR Compensator using sensitivity indices analysis method | |
| CN106505576B (en) | It is a kind of based on Link-path urban high voltage distribution network load turn for method | |
| CN106159957A (en) | A kind of optimization method exchanging weak section steady-state overvoltage Pre-control measures | |
| CN103618322A (en) | Dynamic reactive efficiency quantitative evaluation method oriented towards transient voltage stability | |
| CN105470976A (en) | Coordinated configuration method for SVC and TCSC under steady state condition | |
| Jokojeje et al. | Reactive power compensation in Nigeria electricity grid using static synchronous compensator (STATCOM) | |
| Ogunwole | Optimal placement of statcom controllers with metaheuristic algorithms for network power loss reduction and voltage profile deviation minimization. | |
| Eissa et al. | A novel approach for optimum number and location of FACTS devices on IEEE-30 bus grid using meta-heuristic basd Harmony Search | |
| CN105305504B (en) | Transmission cross-section limit method for solving based on equal and opposite quantities in pairs adjusting method | |
| Liu et al. | Transmission capability of the grid cross section considering the interruptible load management | |
| Prajapati et al. | Improvement of power system security by optimal location of FACTs devices using sensitivity approach | |
| Wang et al. | Control interactions between the HVDC and UPFC by use of the RGA | |
| Jethani et al. | Sensitivity based optimal location of TCSC for improvement of power system security |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |