CN105893680A - Data processing method and apparatus - Google Patents
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Abstract
The invention discloses a data processing method and apparatus. The method comprises: in accordance with states of interfaces and interface buses of a power transmission network and a power distribution network, generating initial configuration conditions corresponding to the power transmission network and the power distribution network; respectively sending the initial configuration conditions to the power transmission network and the power distribution network; receiving bus power returned by the power transmission network and the power distribution network; in accordance with the bus power, calculating a coordination value, and judging whether the coordination value is smaller than a preset threshold; in the case that a judgment result is no, in accordance with a first preset condition, executing a corresponding first operation on the coordination value; in the case that the judgment result is yes, in accordance with a second preset condition, executing a second operation. The data processing method and apparatus disclosed by the invention solve the technical problem that in the prior art, electromechanical transient simulation and electromagnetic transient simulation are carried out alternatively and one integration step of time delay exists between electromechanical transient simulation and electromagnetic transient simulation, but in an actual power system, the time delay does not exist, so that due to influence of the time delay, simulation accuracy is low.
Description
Technical field
The present invention relates to electrical application technology field, the method and apparatus processed in particular to a kind of data.
Background technology
nullAlong with D.C. high voltage transmission (High Voltage Direct Current Transmission，It is called for short HVDC) and flexible AC transmitting system (Flexible Alternative Current Transmission System，It is called for short FACTS) development of technology and coding rule (Distinguished Encoding Rules can be distinguished in a large number，Vehicle economy R) access power distribution network，The transient process of electrical network is more complicated，The dynamic process of the different physical features of reflection is interweaved together，Power system becomes a collection electro-magnetic transient、The complication system that multiple dynamic process such as electromechanical transient and medium-term and long-term transient state is integrated，There is typical Multiple Time Scales characteristic.Typically, work about electric power personnel transient process of interest is usually the electromechanical transient process of power transmission network and the electromagnetic transient of power distribution network.
Due to the significant difference in electric pressure, network topology and impedance operator, and being belonging respectively to the control centre of different stage, there is larger difference in the simulating analysis of power transmission network and power distribution network, the simulation software used is the most different.At home, power transmission network typically uses Power System Analysis program (Power System Department-BPA, be called for short PSD-BPA), Based on Power System Analysis Software Package (Power System Analysis Software Package, be called for short PSASP) etc. simulation software, and power distribution network not yet has widely used business simulation software.Currently running with under management system, between power transmission network and power distribution network, lack effective coordination.In recent years, the power distribution network that accesses of distributed power source has become as an inexorable trend of power network development from now on, changes the single-ended characteristics of tidal flow of conventional electrical distribution net, and the coupling between power transmission network and power distribution network becomes strong, traditional separately modeling pattern Shortcomings.In order to improve the overall situation safety of operation of power networks, stability and economy, it is necessary to carry out power transmission network and power distribution network combined dispatching and coordinate to control.Obviously, this is accomplished by carrying out power transmission network and the emulation of power distribution network the whole network integration and analysis.
At present, using the method for hybrid simulation to emulate the system of transmission & distribution integration Multiple Time Scales characteristic, electromechanical/electromagnetic transient state hybrid simulation is the most most commonly seen one.But, existing simulation frame could not break through the restriction of existing interface framework, there is certain defect in terms of accuracy of simulation.
Conventional hybrid simulation algorithm typically uses Dai Weinan circuit to carry out the equivalence of dynamo-electric side, comes with some shortcomings: first-harmonic equivalent impedance lacks the ability of descriptive system harmonic characterisitic, is likely to result in real system and non-existent high frequency transient process；And the equivalent impedance of frequency dependence asks for difficulty, the most feasible.
Electromagnetism side system is typically based on himself characteristic, uses the combination of constant-impedance, constant-current source, constant power load model or three to be described.But, electromagnetism side system contains substantial amounts of power electronic element mostly, and its dynamic behaviour is complex, and the reasonability of existing Static Equivalent model remains to be discussed.Even if existing Equivalent Model is rational, the asking for of this equivalent parameters there is also certain difficulty.
Generally speaking, in existing hybrid simulation interface frame, both sides equivalent circuit is the most crucial, but the concrete form of equivalent circuit and equivalent parameters are asked for there is bigger difficulty, becomes one of key factor of restriction transmission & distribution integration transient hybrid simulation technology development.Non-iterative mutual sequential will bring bigger error when fault.
For above-mentioned due in prior art electromechanical transient simulation and electromagnetic transient simulation be alternately, there is the time delay of 1 integration step between the two, and in practical power systems, this time delay does not exist, thus cause, owing to the impact of time delay makes the problem that simulation accuracy is low, the most not yet proposing effective solution.
Summary of the invention
Embodiments provide the method and apparatus that a kind of data process, at least to solve owing in prior art, electromechanical transient simulation and electromagnetic transient simulation are alternately, there is the time delay of 1 integration step between the two, and in practical power systems, this time delay does not exist, thus causes owing to the impact of time delay makes the technical problem that simulation accuracy is low.
An aspect according to embodiments of the present invention, it is provided that a kind of method that data process, including: according to power transmission network and the interface of power distribution network and interface bus state, generate corresponding power transmission network and the initial configuration condition of power distribution network；Initial configuration condition is sent respectively to power transmission network and power distribution network；Receive power transmission network and the bus power of power distribution network return；Calculate coordination value according to bus power, and judge that whether coordination value is less than predetermined threshold value；In the case of judged result is no, according to first pre-conditioned the first operation that coordination value is performed correspondence；In the case of judged result is for being, operate according to the second pre-conditioned execution second.
Another aspect according to embodiments of the present invention, additionally provides the device that a kind of data process, including: condition generation module, for according to power transmission network and the interface of power distribution network and interface bus state, generate corresponding power transmission network and the initial configuration condition of power distribution network；Sending module, for sending initial configuration condition respectively to power transmission network and power distribution network；Receiver module, for receiving power transmission network and the bus power of power distribution network return；Judge module, for calculating coordination value according to bus power, and judges that whether coordination value is less than predetermined threshold value；First performs module, in the case of judged result is no, according to first pre-conditioned the first operation that coordination value performs correspondence；Second performs module, in the case of judged result is for being, operates according to the second pre-conditioned execution second.
In embodiments of the present invention, by according to power transmission network and the interface of power distribution network and interface bus state, corresponding power transmission network and the initial configuration condition of power distribution network are generated；Initial configuration condition is sent respectively to power transmission network and power distribution network；Receive power transmission network and the bus power of power distribution network return；Calculate coordination value according to bus power, and judge that whether coordination value is less than predetermined threshold value；In the case of judged result is no, according to first pre-conditioned the first operation that coordination value is performed correspondence；In the case of judged result is for being, operate according to the second pre-conditioned execution second, reach the purpose that electromechanical transient simulation is carried out simultaneously with electromagnetic transient simulation, it is achieved thereby that promote the technique effect of simulation accuracy, and then solve owing in prior art, electromechanical transient simulation and electromagnetic transient simulation are alternately, there is the time delay of 1 integration step between the two, and in practical power systems, this time delay does not exist, thus causes owing to the impact of time delay makes the technical problem that simulation accuracy is low.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of the method that data according to embodiments of the present invention process；
Fig. 2 is the schematic flow sheet of the method that a kind of data according to embodiments of the present invention process；
Fig. 3 is the test grid topological diagram in the method that data according to embodiments of the present invention process；
Fig. 4 is the voltage waveform view in the method that data according to embodiments of the present invention process；
Fig. 5 is the current waveform schematic diagram in the method that data according to embodiments of the present invention process；
Fig. 6 is the voltage waveform close-up schematic view in the method that data according to embodiments of the present invention process；
Fig. 7 is the current waveform close-up schematic view in the method that data according to embodiments of the present invention process；
Fig. 8 is the structural representation of the device that data according to embodiments of the present invention process.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all should belong to the scope of protection of the invention.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second " etc. are for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that the data of so use can be exchanged in the appropriate case, in order to embodiments of the invention described herein can be implemented with the order in addition to those here illustrating or describing.In addition, term " includes " and " having " and their any deformation, it is intended to cover non-exclusive comprising, such as, contain series of steps or the process of unit, method, system, product or equipment be not necessarily limited to those steps or the unit clearly listed, but can include the most clearly listing or for intrinsic other step of these processes, method, product or equipment or unit.
Embodiment one
According to embodiments of the present invention, provide the embodiment of the method that a kind of data process, it should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although showing logical order in flow charts, but in some cases, can be to be different from the step shown or described by order execution herein.
Fig. 1 is the schematic flow sheet of the method that data according to embodiments of the present invention process, as it is shown in figure 1, the method comprises the steps:
Step S100, according to power transmission network and the interface of power distribution network and interface bus state, generates corresponding power transmission network and the initial configuration condition of power distribution network；
Concrete, the method for the data process that the embodiment of the present application provides goes for the integrated transient emulation algorithm of power transmission network/power distribution network, and particularly in electrical power system transient technology, the embodiment of the present application proposes a kind of based on " composition decomposition " thought.Selected power transmission network and power distribution network interface, as coordinating side, select the junction point between power transmission network and power distribution network to carry out subregion, t=t as interface bus0, and the voltage magnitude V of initialization interface busBWith voltage phase angle θB。
Step S102, sends initial configuration condition respectively to power transmission network and power distribution network；
Concrete, after generating initial configuration condition in the step s 100, send this initial configuration condition to power transmission network and power distribution network, i.e. by voltage magnitude VBWith voltage phase angle θBSend to power transmission network and power distribution network, so that power transmission network and power distribution network are according to voltage magnitude VBWith voltage phase angle θBCarry out [t, t+ Δ T] power distribution network electromechanical transient simulation and electromagnetic transient simulation in the time period respectively, calculate the meritorious and reactive power that boundary node injects.
Step S104, receives power transmission network and the bus power of power distribution network return；
Concrete, the embodiment of the present application coordinates side, receives power transmission network and power distribution network according to voltage magnitude VBWith voltage phase angle θBThe bus power returned within [t, the t+ Δ T] time period, wherein, bus power includes: border active power and border reactive power.
Step S106, calculates coordination value according to bus power, and judges that whether coordination value is less than predetermined threshold value；
Concrete, calculating coordination value according to bus power in the embodiment of the present application can be obtained by preset formula, and wherein, this preset formula can be:
ΦBFor coordination value, ΦB(VB, θB) represent that power transmission network and power distribution network are according to (VB, θB) coordination value that obtains of the bus power that exports, PabcWithIt is respectively power transmission network and power distribution network both sides emulate the border active power obtained；QabcWithBeing respectively power transmission network and power distribution network both sides emulate the border reactive power obtained, Δ P and Δ Q is the meritorious and idle gain that both sides calculate.
Obtaining coordination value ΦBAfterwards, it may be judged whether exist | | ΦB| | < relation of ε, if ΦBStep S110 is then performed less than ε, if ΦBStep S108 is then performed more than ε.
Step S108, in the case of judged result is no, according to first pre-conditioned the first operation that coordination value performs correspondence；
Concrete, judgement based on step S106, work as ΦBDuring more than ε, according to ΦBCalculate VBAnd θBGain delta VBWith Δ θB, and update excuse bus state, make the V after being updatedBAnd θB, it is denoted as, VB ’And θB ’, and re-execute step S100 to step S108.
Step S110, in the case of judged result is for being, operates according to the second pre-conditioned execution second.
Concrete, judgement based on step S106, work as ΦBDuring less than ε, it is judged that coordinate side joint and receive this ΦBMoment t whether be the t+ △ T in the time period of [t, the t+ Δ T] in power transmission network and power distribution network, if t > preset end time tend, then emulation terminates；If t < presets end time tend, then step S100 is performed to step S110.
In the method that the data that the embodiment of the present application provides process, by according to power transmission network and the interface of power distribution network and interface bus state, generate corresponding power transmission network and the initial configuration condition of power distribution network；Initial configuration condition is sent respectively to power transmission network and power distribution network；Receive power transmission network and the bus power of power distribution network return；Calculate coordination value according to bus power, and judge that whether coordination value is less than predetermined threshold value；In the case of judged result is no, according to first pre-conditioned the first operation that coordination value is performed correspondence；In the case of judged result is for being, operate according to the second pre-conditioned execution second, reach the purpose that electromechanical transient simulation is carried out simultaneously with electromagnetic transient simulation, it is achieved thereby that promote the technique effect of simulation accuracy, and then solve owing in prior art, electromechanical transient simulation and electromagnetic transient simulation are alternately, there is the time delay of 1 integration step between the two, and in practical power systems, this time delay does not exist, thus causes owing to the impact of time delay makes the technical problem that simulation accuracy is low.
Concrete, Fig. 2 is the schematic flow sheet of the method that a kind of data according to embodiments of the present invention process, as in figure 2 it is shown, the method that the data that the embodiment of the present application provides process is specific as follows:
Alternatively, according to power transmission network and the interface of power distribution network and interface bus state in step S100, the initial configuration condition generating corresponding power transmission network and power distribution network includes:
Step1, selects power transmission network and power distribution network interface as coordinating interface；
Step2, selects the junction point between power transmission network and power distribution network as interface bus；
Step3, sets coordination initial time as the very first time, and arranges voltage magnitude and the voltage phase angle of initialization interface bus；
Step4, is defined as initial configuration condition by the very first time, voltage magnitude and voltage phase angle.
Step1 to Step4 in integrating step S100, coordinates end and selectes power transmission network with power distribution network interface as coordinating side, select suitable interface bus to carry out subregion, t=t0, and the voltage magnitude V of initialization interface busBWith voltage phase angle θB；
Concrete, Fig. 3 is the test grid topological diagram in the method that data according to embodiments of the present invention process, as it is shown on figure 3, the algorithm of narration in patent specification is described as a example by a test system.This system network topology, as in figure 2 it is shown, power transmission network is IEEE 9 system, uses electromechanical transient to be modeled, and power distribution network uses simple resistance sense load simulation, and interface is chosen as bus 6.
Alternatively, in the case of bus power includes border active power and border reactive power, step S106 calculates coordination value according to bus power and includes:
Step1, performs summation by the second boundary active power of the first border active power of power transmission network Yu power distribution network, obtains the border active power gain of power transmission network and power distribution network；
Step2, performs summation by the second boundary reactive power of the first border reactive power of power transmission network Yu power distribution network, obtains the border reactive power gain of power transmission network and power distribution network；
Step3, performs predetermined registration operation by border active power gain with border reactive power gain, obtains coordination value；
Wherein, predetermined registration operation includes:
ΦBFor coordination value, VBFor voltage magnitude and θBFor voltage phase angle；PabcFor the first border active power of power transmission network,The second boundary active power for power distribution network；QabcFor the first border reactive power of power transmission network,The second boundary reactive power for power distribution network；Δ P is the border active power gain of power transmission network and power distribution network, and Δ Q is the border reactive power gain of power transmission network and power distribution network.
Step1 to Step3 in integrating step S106, calculates value Φ of border coordination equation according to (3-1) formulaB(that is, the coordination value in the embodiment of the present application),
Wherein, PabcWithIt is respectively power transmission network and power distribution network both sides emulate the border active power obtained；QabcWithBeing respectively power transmission network and power distribution network both sides emulate the border reactive power obtained, Δ P and Δ Q is active power and the gain of reactive power of both sides calculating.
Alternatively, step S108 includes according to first pre-conditioned the first operation that coordination value performs correspondence:
Step1, calculates the first gain and second gain of voltage phase angle of voltage magnitude according to coordination value；
Step2, is added according to the first gain and voltage magnitude, the first voltage magnitude after being updated；
Step3, is added according to the second gain and voltage phase angle, the first voltage phase angle after being updated；
Step4, generates the first initial configuration condition according to the first voltage magnitude and the first voltage phase angle；
Step5, returns the first initial configuration condition to power transmission network and power distribution network, until coordination value is less than predetermined threshold value.
Concrete, coordination value Φ based on Step1 to the Step3 calculating in step S106B, in the case of judging that coordination value is more than predetermined threshold value, the Step1 to Step5 in integrating step S108, specific as follows according to the first pre-conditioned first operation corresponding to coordination value execution:
Work as ΦBDuring more than ε, by ΦBSolve the first gain delta VBWith the second gain delta θB, more new interface bus state, the first voltage magnitude V after obtaining newlyB ’With the first voltage phase angle θ after renewalB ’, wherein,
VB ’=VB+ΔVB；
θB ’=θB+ΔθB；
It is then back to the V after step S100 will updateB ’And θB ’As the first initial configuration condition entry power transmission network and power distribution network, and then receive power transmission network and the bus power of power distribution network return after the time period carrying out [t, t+ Δ T], and calculate coordination value Φ according to this bus power by publicity (3-1)B, and by by coordination value ΦBCompare with predetermined threshold value ε, if ΦBStep S100 is then re-executed to step S108 still greater than ε, until ΦBLess than ε.
Alternatively, step S110 includes according to second pre-conditioned execution the second operation:
Step1, it is judged that whether calculate the moment of coordination value more than presetting the end time；
Step2, in the case of judged result is for being, terminates emulation；
Step3, in the case of judged result is no, power transmission network and the bus power of power distribution network return is obtained by configuring initial configuration condition, and calculate coordination value according to bus power, and judge whether coordination value is less than predetermined threshold value, until coordination value less than threshold value and calculates the moment of coordination value more than presetting the end time.
Concrete, coordination value Φ based on Step1 to the Step3 calculating in step S106B, in the case of judging that coordination value is less than predetermined threshold value, the Step1 to Step3 in integrating step S110, specific as follows according to the second pre-conditioned second operation corresponding to coordination value execution:
Work as ΦBDuring less than ε, it is judged that coordinate side and judge that coordinating side joint receives this ΦBMoment t whether be the t+ △ T in the time period of [t, the t+ Δ T] in power transmission network and power distribution network, if t > preset end time tend, then emulation terminates；If t < presets end time tend, then step S100 is re-executed to step S110.
To sum up, as in figure 2 it is shown, integrating step S100 is to step S110, the method that the data that the embodiment of the present application provides process is specific as follows:
Step (1) is coordinated side and is initialized computing environment: selected power transmission network and power distribution network interface, as coordinating side, select suitable interface bus to carry out subregion, t=t0, and the voltage V of initialization interface busBAnd θB；
Step (2) power transmission network side and power distribution network side carry out [t respectively according to the boundary condition that interface (coordination side) is given, t+ Δ T] power distribution network electromechanical transient simulation and electromagnetic transient simulation in the time period, calculate the meritorious and reactive power that boundary node injects.
Step (3) calculates value Φ of border coordination equation according to (3-1) formulaB,
If | | ΦB| | < ε then forwards Step 4 to；Otherwise by ΦBSolve Δ VBWith Δ θB, more new interface bus state, order
VB=VB+ΔVB (3-2)
θB=θB+ΔθB (3-3)
It is then back to step (2).
Step (4) this time step iteration convergence, t=t+ Δ T, if t > tendThen emulation terminates, and otherwise returns step (3).Specific algorithm flow process is as shown in Figure 1.
Perform step (1)～step (4) i.e. completes the hybrid simulation to this system, simulation result is compared with PSCAD simulation result, the A phase voltage of power distribution network internal bus and current deviation are maximum, the most as shown in Figure 4 and Figure 5, Fig. 4 is the voltage waveform view in the method that data according to embodiments of the present invention process to its voltage and current waveform；Fig. 5 is the current waveform schematic diagram in the method that data according to embodiments of the present invention process.
From Fig. 4 and Fig. 5, even under the conditions of the catastrophe failure of interface bus single-phase earthing, the simulation result of the hybrid simulation algorithm that this patent proposes also can keep basically identical with PSCAD simulation result.Occurring and transient process after excision to observe fault, the middle waveform of Fig. 4 and Fig. 5 is carried out partial enlargement, can obtain Fig. 6 and Fig. 7, Fig. 6 is the voltage waveform close-up schematic view in the method that processes of data according to embodiments of the present invention；Fig. 7 is the current waveform close-up schematic view in the method that data according to embodiments of the present invention process.
From Fig. 6 and Fig. 7, except occurring and the of short duration time memory in excision moment may be considered the same in certain deviation, the result of hybrid simulation with the result of PSCAD emulation substantially in fault, it was demonstrated that the algorithm of this patent proposition has higher simulation accuracy.
Embodiment two
According to embodiments of the present invention, provide the device embodiment that a kind of data process, Fig. 8 is the structural representation of the device that data according to embodiments of the present invention process, as shown in Figure 8, the device that these data process includes: condition generation module 81, sending module 82, receiver module 83, judge module 84, first perform module 85 and second and perform module 86, wherein
Condition generation module 81, for according to power transmission network and the interface of power distribution network and interface bus state, generates corresponding power transmission network and the initial configuration condition of power distribution network；
Sending module 82, for sending initial configuration condition respectively to power transmission network and power distribution network；
Receiver module 83, for receiving power transmission network and the bus power of power distribution network return；
Judge module 84, for calculating coordination value according to bus power, and judges that whether coordination value is less than predetermined threshold value；
First performs module 85, in the case of judged result is no, according to first pre-conditioned the first operation that coordination value performs correspondence；
Second performs module 86, in the case of judged result is for being, operates according to the second pre-conditioned execution second.
In the device that the data that the embodiment of the present application provides process, by according to power transmission network and the interface of power distribution network and interface bus state, generate corresponding power transmission network and the initial configuration condition of power distribution network；Initial configuration condition is sent respectively to power transmission network and power distribution network；Receive power transmission network and the bus power of power distribution network return；Calculate coordination value according to bus power, and judge that whether coordination value is less than predetermined threshold value；In the case of judged result is no, according to first pre-conditioned the first operation that coordination value is performed correspondence；In the case of judged result is for being, operate according to the second pre-conditioned execution second, reach the purpose that electromechanical transient simulation is carried out simultaneously with electromagnetic transient simulation, it is achieved thereby that promote the technique effect of simulation accuracy, and then solve owing in prior art, electromechanical transient simulation and electromagnetic transient simulation are alternately, there is the time delay of 1 integration step between the two, and in practical power systems, this time delay does not exist, thus causes owing to the impact of time delay makes the technical problem that simulation accuracy is low.
Optionally, condition generation module 81 includes: interface selection unit, bus selection unit, setting value unit and condition signal generating unit, wherein,
Interface selects unit, is used for selecting power transmission network and power distribution network interface as coordinating interface；
Bus selects unit, for selecting the junction point between power transmission network and power distribution network as interface bus；
Setting value unit, is used for setting coordination initial time as the very first time, and arranges voltage magnitude and the voltage phase angle of initialization interface bus；
Condition signal generating unit, for being defined as initial configuration condition by the very first time, voltage magnitude and voltage phase angle.
Optionally, it is judged that module 84 includes: the first computing unit, the second computing unit and the 3rd computing unit, wherein,
First computing unit, in the case of including border active power and border reactive power at bus power, the second boundary active power of the first border active power of power transmission network Yu power distribution network is performed summation, obtains the border active power gain of power transmission network and power distribution network；
Second computing unit, for the first border reactive power of power transmission network and the second boundary reactive power of power distribution network are performed summation, obtains the border reactive power gain of power transmission network and power distribution network；
3rd computing unit, for border active power gain is performed predetermined registration operation with border reactive power gain, obtains coordination value；
Wherein, predetermined registration operation includes:
ΦBFor coordination value, VBFor voltage magnitude and θBFor voltage phase angle；PabcFor the first border active power of power transmission network,The second boundary active power for power distribution network；QabcFor the first border reactive power of power transmission network,The second boundary reactive power for power distribution network；Δ P is the border active power gain of power transmission network and power distribution network, and Δ Q is the border reactive power gain of power transmission network and power distribution network.
Optionally, first performs module 85 includes: the 4th computing unit, the first data updating unit, the second data updating unit, condition signal generating unit and the first performance element, wherein,
4th computing unit, for calculating the first gain and second gain of voltage phase angle of voltage magnitude according to coordination value；
First data updating unit, for being added according to the first gain and voltage magnitude, the first voltage magnitude after being updated；
Second data updating unit, for being added according to the second gain and voltage phase angle, the first voltage phase angle after being updated；
Condition signal generating unit, for generating the first initial configuration condition according to the first voltage magnitude and the first voltage phase angle；
First performance element, for returning the first initial configuration condition to power transmission network and power distribution network, until coordination value is less than predetermined threshold value.
Optionally, the second execution module 86 includes: judging unit, the second performance element and the 3rd performance element.
Judging unit, for judging that whether the moment calculating coordination value is more than presetting the end time；
Second performance element, in the case of judged result is for being, terminates emulation；
3rd performance element, for in the case of judged result is no, power transmission network and the bus power of power distribution network return is obtained by configuring initial configuration condition, and calculate coordination value according to bus power, and judge whether coordination value is less than predetermined threshold value, until coordination value less than threshold value and calculates the moment of coordination value more than presetting the end time.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not has the part described in detail, may refer to the associated description of other embodiments in certain embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, can realize by another way.Wherein, device embodiment described above is only schematically, the division of such as unit, can be that a kind of logic function divides, actual can have other dividing mode when realizing, the most multiple unit or assembly can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, unit or module or communication connection, can be being electrical or other form.
The unit illustrated as separating component can be or may not be physically separate, and the parts shown as unit can be or may not be physical location, i.e. may be located at a place, or can also be distributed on multiple unit.Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ the form of SFU software functional unit realizes.
If integrated unit is using the form realization of SFU software functional unit and as independent production marketing or use, can be stored in a computer read/write memory medium.Based on such understanding, completely or partially can embodying with the form of software product of part that prior art is contributed by technical scheme the most in other words or this technical scheme, this computer software product is stored in a storage medium, including some instructions with so that all or part of step of computer equipment (can be personal computer, server or the network equipment etc.) execution each embodiment method of the present invention.And aforesaid storage medium includes: USB flash disk, read only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), portable hard drive, the various media that can store program code such as magnetic disc or CD.
Below it is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. the method that data process, it is characterised in that including:
According to power transmission network and the interface of power distribution network and interface bus state, generate corresponding described power transmission network and described join
The initial configuration condition of electrical network；
Described initial configuration condition is sent respectively to described power transmission network and described power distribution network；
Receive described power transmission network and the bus power of described power distribution network return；
Calculate coordination value according to described bus power, and judge that whether described coordination value is less than predetermined threshold value；
In the case of judged result is no, foundation first is pre-conditioned performs corresponding first to described coordination value
Operation；
In the case of judged result is for being, operate according to the second pre-conditioned execution second.
Method the most according to claim 1, it is characterised in that the described interface according to power transmission network and power distribution network and connecing
Mouth bus state, the initial configuration condition generating corresponding described power transmission network and described power distribution network includes:
Select described power transmission network and described power distribution network interface as coordinating interface；
Select the junction point between described power transmission network and described power distribution network as interface bus；
Set coordination initial time as the very first time, and voltage magnitude and the electricity initializing described interface bus is set
Pressure phase angle；
The described very first time, described voltage magnitude and described voltage phase angle are defined as described initial configuration condition.
Method the most according to claim 2, it is characterised in that described bus power include border active power and
In the case of the reactive power of border, described according to described bus power calculate coordination value include:
Perform to ask by the second boundary active power of the first border active power of described power transmission network with described power distribution network
With, obtain the border active power gain of described power transmission network and described power distribution network；
Perform to ask by the second boundary reactive power of the first border reactive power of described power transmission network with described power distribution network
With, obtain the border reactive power gain of described power transmission network and described power distribution network；
The active power gain of described border is performed predetermined registration operation with the reactive power gain of described border, obtains described
Coordination value；
Wherein, described predetermined registration operation includes:
Described ΦBFor described coordination value, described VBFor described voltage magnitude and described θBFor described voltage phase angle；
Described PabcFor the described first border active power of described power transmission network, describedFor described power distribution network described
Two border active power；Described QabcFor the described first border reactive power of described power transmission network, describedFor
The second boundary reactive power of described power distribution network；Described Δ P is described power transmission network and the border of described power distribution network has
Merit power gain, described Δ Q is the border reactive power gain of described power transmission network and described power distribution network.
Method the most according to claim 3, it is characterised in that described foundation first is pre-conditioned to described coordination value
Perform the first corresponding operation to include:
The first gain and second gain of described voltage phase angle of described voltage magnitude is calculated according to described coordination value；
It is added according to described first gain and described voltage magnitude, the first voltage magnitude after being updated；
It is added according to described second gain and described voltage phase angle, the first voltage phase angle after being updated；
The first initial configuration condition is generated according to described first voltage magnitude and described first voltage phase angle；
Described first initial configuration condition is returned described power transmission network and described power distribution network, until described coordination value is little
In described predetermined threshold value.
Method the most according to claim 3, it is characterised in that the described pre-conditioned execution of foundation second second operates
Including:
Judge that whether the moment calculating described coordination value is more than presetting the end time；
In the case of judged result is for being, terminate emulation；
In the case of judged result is no, obtain described power transmission network and institute by configuring described initial configuration condition
State the described bus power that power distribution network returns, and calculate described coordination value according to described bus power, and judge institute
State whether coordination value is less than described predetermined threshold value, until described coordination value less than described threshold value and calculates described coordination
The moment of value is more than the described default end time.
6. the device that data process, it is characterised in that including:
Condition generation module, for according to power transmission network and the interface of power distribution network and interface bus state, generates correspondence
The initial configuration condition of described power transmission network and described power distribution network；
Sending module, for sending described initial configuration condition respectively to described power transmission network and described power distribution network；
Receiver module, for receiving described power transmission network and the bus power of described power distribution network return；
Judge module, for calculating coordination value according to described bus power, and judges whether described coordination value is less than
Predetermined threshold value；
First performs module, in the case of judged result is no, pre-conditioned to described association according to first
Tone pitch performs the first corresponding operation；
Second performs module, in the case of judged result is for being, according to the second pre-conditioned execution second
Operation.
Device the most according to claim 6, it is characterised in that described condition generation module includes:
Interface selects unit, is used for selecting described power transmission network and described power distribution network interface as coordinating interface；
Bus selects unit, for selecting the junction point between described power transmission network and described power distribution network female as interface
Line；
Setting value unit, is used for setting coordination initial time as the very first time, and arranges the described interface of initialization
The voltage magnitude of bus and voltage phase angle；
Condition signal generating unit, for determining the described very first time, described voltage magnitude and described voltage phase angle
For described initial configuration condition.
Device the most according to claim 7, it is characterised in that described judge module includes:
First computing unit, for including border active power and the feelings of border reactive power at described bus power
Under condition, the second boundary active power of the first border active power of described power transmission network with described power distribution network is performed
Summation, obtains the border active power gain of described power transmission network and described power distribution network；
Second computing unit, for by the first border reactive power of described power transmission network and the second of described power distribution network
Border reactive power performs summation, obtains the border reactive power gain of described power transmission network and described power distribution network；
3rd computing unit, for performing the active power gain of described border with the reactive power gain of described border
Predetermined registration operation, obtains described coordination value；
Wherein, described predetermined registration operation includes:
Described ΦBFor described coordination value, described VBFor described voltage magnitude and described θBFor described voltage phase angle；
Described PabcFor the described first border active power of described power transmission network, describedFor described power distribution network described
Two border active power；Described QabcFor the described first border reactive power of described power transmission network, describedFor
The second boundary reactive power of described power distribution network；Described Δ P is described power transmission network and the border of described power distribution network has
Merit power gain, described Δ Q is the border reactive power gain of described power transmission network and described power distribution network.
Device the most according to claim 8, it is characterised in that described first performs module includes:
4th computing unit, for calculating the first gain of described voltage magnitude and described electricity according to described coordination value
Second gain at pressure phase angle；
First data updating unit, for being added according to described first gain and described voltage magnitude, is updated
After the first voltage magnitude；
Second data updating unit, for being added according to described second gain and described voltage phase angle, obtains more
The first voltage phase angle after Xin；
Condition signal generating unit, for generating first according to described first voltage magnitude and described first voltage phase angle
Initial configuration condition；
First performance element, for described first initial configuration condition is returned described power transmission network and described power distribution network,
Until described coordination value is less than described predetermined threshold value.
Device the most according to claim 8, it is characterised in that described second performs module includes:
Judging unit, for judging that whether the moment calculating described coordination value is more than presetting the end time；
Second performance element, in the case of judged result is for being, terminates emulation；
3rd performance element, in the case of judged result is no, by configuring described initial configuration condition
Obtain described power transmission network and the described bus power of described power distribution network return, and calculate institute according to described bus power
State coordination value, and judge whether described coordination value is less than described predetermined threshold value, until described coordination value is less than described
Threshold value and calculate moment of described coordination value more than the described default end time.
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| CN113541189A (en) * | 2021-07-19 | 2021-10-22 | 国网上海市电力公司 | Interface positioning method suitable for large-scale alternating current-direct current power grid electromechanical-electromagnetic transient hybrid simulation |
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| US20150286759A1 (en) * | 2012-10-12 | 2015-10-08 | Technische Universitaet Dortmund | Computer implemented method for hybrid simulation of power distribution network and associated communication network for real time applications |
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