CN109840391A - The model creation method and device of on-load regulator transformer - Google Patents
The model creation method and device of on-load regulator transformer Download PDFInfo
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Abstract
The present invention provides a kind of model creation method and devices of on-load regulator transformer, this method comprises: the first branch of on-load regulator transformer in electric system is converted to second branch；Dummy node is created in second branch；According to the model of dummy node and the branch parameters of second branch creation on-load regulator transformer.Through the invention, it solves the problems, such as that the creation efficiency of the model of on-load regulator transformer in the related technology is lower, and then has achieved the effect that the creation efficiency for the model for improving on-load regulator transformer.
Description
Technical field
The present invention relates to computer fields, a kind of model creation method in particular to on-load regulator transformer and
Device.
Background technique
On-load regulator transformer is the important component of electric system, in Power System Analysis and calculating, commonly
Model mainly has Γ type and Π pattern type.When calculating conventional voltage voltage collapse point Nonlinear programming Model using interior point method,
For on-load regulator transformer using when having Γ type and Π pattern type, each iteration requires amendment Hessian matrix, affects calculating speed
Degree.
For above-mentioned problem, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of model creation method and devices of on-load regulator transformer, at least to solve phase
The lower problem of the creation efficiency of the model of on-load regulator transformer in the related technology in the technology of pass.
According to one embodiment of present invention, a kind of model creation method of on-load regulator transformer is provided, comprising: will
The first branch of on-load regulator transformer is converted to second branch in electric system；Virtual section is created in the second branch
Point；The model of the on-load regulator transformer is created according to the branch parameters of the dummy node and the second branch.
Optionally, the first branch of on-load regulator transformer in electric system is converted to second branch includes: from described
The ideal transformer branch and transformer admittance branch of target no-load voltage ratio parameter are extracted in the first branch, wherein the branch parameters
Including the target no-load voltage ratio parameter；The branch obtained after the ideal transformer branch and the series connection of transformer admittance branch is determined
For the second branch.
Optionally, dummy node is created in the second branch includes: by the ideal transformer branch and transformer
Node between admittance branch is determined as the dummy node；Create the low-pressure side section of the dummy node Yu the second branch
The first power module between point.
Optionally, the on-load regulator transformer is created according to the dummy node and the branch parameters of the second branch
Model include at least one of: first power module is determined as to the second power mould of the on-load regulator transformer
Type；The voltage model of the on-load regulator transformer is created according to first power module and the target no-load voltage ratio parameter.
According to another embodiment of the invention, a kind of model creation device of on-load regulator transformer is provided, comprising:
Conversion module, for the first branch of on-load regulator transformer in electric system to be converted to second branch；First creation module,
For creating dummy node in the second branch；Second creation module, for according to the dummy node and described second
The branch parameters of branch create the model of the on-load regulator transformer.
Optionally, the conversion module includes: extraction unit, for extracting target no-load voltage ratio parameter from the first branch
Ideal transformer branch and transformer admittance branch, wherein the branch parameters include the target no-load voltage ratio parameter；First really
Order member, for the branch obtained after the ideal transformer branch and the series connection of transformer admittance branch to be determined as described second
Branch.
Optionally, first creation module includes: the second determination unit, is used for the ideal transformer branch and change
Node between depressor admittance branch is determined as the dummy node；First creating unit, for create the dummy node with
The first power module between the low side node of the second branch.
Optionally, second creation module includes at least one of: third determination unit, is used for first function
Rate model is determined as the second power module of the on-load regulator transformer；Second creating unit, for according to first function
Rate model and the target no-load voltage ratio parameter create the voltage model of the on-load regulator transformer.
According to still another embodiment of the invention, a kind of storage medium is additionally provided, meter is stored in the storage medium
Calculation machine program, wherein the computer program is arranged to execute the step in any of the above-described embodiment of the method when operation.
According to still another embodiment of the invention, a kind of electronic device, including memory and processor are additionally provided, it is described
Computer program is stored in memory, the processor is arranged to run the computer program to execute any of the above-described
Step in embodiment of the method.
Through the invention, by the way that the first branch of on-load regulator transformer in electric system is converted to second branch；?
Dummy node is created in second branch；According to the mould of dummy node and the branch parameters of second branch creation on-load regulator transformer
The mode of type by creating dummy node, and indicates by the voltage of the dummy node ideal transformer to power, voltage
Transformational relation, making its objective function, equality constraints functions and inequality constraints function is primary or quadratic function.Therefore, may be used
Creation efficiency to solve the problems, such as the model of on-load regulator transformer in the related technology is lower, reaches and improves on-load voltage regulation transformation
The effect of the creation efficiency of the model of device.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of hardware knot of the mobile terminal of the model creation method of on-load regulator transformer of the embodiment of the present invention
Structure block diagram；
Fig. 2 is the flow chart of the model creation method of on-load regulator transformer according to an embodiment of the present invention；
Fig. 3 is the structural block diagram of the model creation device of on-load regulator transformer according to an embodiment of the present invention；
Fig. 4 is the schematic diagram of the model creation method of the on-load regulator transformer of alternative embodiment according to the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
Embodiment of the method provided by the embodiment of the present application one can be in mobile terminal, terminal or similar fortune
It calculates and is executed in device.For running on mobile terminals, Fig. 1 is a kind of mould of on-load regulator transformer of the embodiment of the present invention
The hardware block diagram of the mobile terminal of type creation method.As shown in Figure 1, mobile terminal 10 may include one or more (Fig. 1
In only show one) (processor 102 can include but is not limited to Micro-processor MCV or programmable logic device to processor 102
The processing unit of FPGA etc.) and memory 104 for storing data, optionally, above-mentioned mobile terminal can also include being used for
The transmission device 106 and input-output equipment 108 of communication function.It will appreciated by the skilled person that shown in FIG. 1
Structure is only to illustrate, and does not cause to limit to the structure of above-mentioned mobile terminal.For example, mobile terminal 10, which may also include, compares Fig. 1
Shown in more perhaps less component or with the configuration different from shown in Fig. 1.
Memory 104 can be used for storing computer program, for example, the software program and module of application software, such as this hair
The corresponding computer program of model creation method of on-load regulator transformer in bright embodiment, processor 102 are deposited by operation
The computer program stored up in memory 104 realizes above-mentioned side thereby executing various function application and data processing
Method.Memory 104 may include high speed random access memory, may also include nonvolatile memory, as one or more magnetism is deposited
Storage device, flash memory or other non-volatile solid state memories.In some instances, memory 104 can further comprise opposite
In the remotely located memory of processor 102, these remote memories can pass through network connection to mobile terminal 10.Above-mentioned net
The example of network includes but is not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
Transmitting device 106 is used to that data to be received or sent via a network.Above-mentioned network specific example may include
The wireless network that the communication providers of mobile terminal 10 provide.In an example, transmitting device 106 includes a Network adaptation
Device (Network Interface Controller, referred to as NIC), can be connected by base station with other network equipments to
It can be communicated with internet.In an example, transmitting device 106 can for radio frequency (Radio Frequency, referred to as
RF) module is used to wirelessly be communicated with internet.
A kind of model creation method of on-load regulator transformer is provided in the present embodiment, and Fig. 2 is real according to the present invention
The flow chart of the model creation method of the on-load regulator transformer of example is applied, as shown in Fig. 2, the process includes the following steps:
The first branch of on-load regulator transformer in electric system is converted to second branch by step S202；
Step S204, creates dummy node in second branch；
Step S206, according to the model of dummy node and the branch parameters of second branch creation on-load regulator transformer.
Through the above steps, by the way that the first branch of on-load regulator transformer in electric system is converted to second branch；
Dummy node is created in second branch；On-load regulator transformer is created according to dummy node and the branch parameters of second branch
The mode of model by creating dummy node, and indicates ideal transformer to power, voltage by the voltage of the dummy node
Transformational relation, making its objective function, equality constraints functions and inequality constraints function is primary or quadratic function.Therefore,
It can solve the lower problem of the creation efficiency of the model of on-load regulator transformer in the related technology, reach and improve on-load voltage regulation change
The effect of the creation efficiency of the model of depressor.
Optionally, in above-mentioned steps S202, the ideal transformer branch of target no-load voltage ratio parameter is extracted from the first branch
With transformer admittance branch, wherein branch parameters include target no-load voltage ratio parameter；By ideal transformer branch and transformer admittance branch
The branch obtained after the series connection of road is determined as second branch.
Optionally, in above-mentioned steps S204, it would be desirable to which the node between transformer branch and transformer admittance branch is true
It is set to dummy node；Create the first power module between dummy node and the low side node of second branch.
Optionally, at least one the in the following manner model of creation on-load regulator transformer in above-mentioned steps S206:
First power module is determined as the second power module of on-load regulator transformer by mode one；
Mode two, according to the voltage model of the first power module and target no-load voltage ratio parameter creation on-load regulator transformer.
To obtain the power module and voltage model of on-load regulator transformer.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but it is very much
In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software products, which is stored in a storage
In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate
Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.
A kind of model creation device of on-load regulator transformer is additionally provided in the present embodiment, and the device is for realizing upper
Embodiment and preferred embodiment are stated, the descriptions that have already been made will not be repeated.As used below, term " module " can be with
Realize the combination of the software and/or hardware of predetermined function.Although device described in following embodiment is preferably come with software real
It is existing, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
Fig. 3 is the structural block diagram of the model creation device of on-load regulator transformer according to an embodiment of the present invention, such as Fig. 3 institute
Show, which includes:
Conversion module 32, for the first branch of on-load regulator transformer in electric system to be converted to second branch；
First creation module 34, for creating dummy node in second branch；
Second creation module 36, for creating on-load regulator transformer according to the branch parameters of dummy node and second branch
Model.
By above-mentioned apparatus, by creating dummy node, and ideal transformer is indicated by the voltage of the dummy node
To the transformational relation of power, voltage, it is primary or secondary for making its objective function, equality constraints functions and inequality constraints function
Function.Therefore, it can solve the lower problem of the creation efficiency of the model of on-load regulator transformer in the related technology, reach raising
The effect of the creation efficiency of the model of on-load regulator transformer.
Optionally, conversion module includes: extraction unit, is become for extracting the ideal of target no-load voltage ratio parameter from the first branch
Depressor branch and transformer admittance branch, wherein branch parameters include target no-load voltage ratio parameter；First determination unit, for that will manage
Think that the branch obtained after transformer branch and the series connection of transformer admittance branch is determined as second branch.
Optionally, the first creation module includes: the second determination unit, is used for ideal transformer branch and transformer admittance
Node between branch is determined as dummy node；First creating unit, for creating the low-pressure side of dummy node and second branch
The first power module between node.
Optionally, the second creation module includes at least one of: third determination unit, for the first power module is true
It is set to the second power module of on-load regulator transformer；Second creating unit, for according to the first power module and target no-load voltage ratio
The voltage model of parameter creation on-load regulator transformer.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Following manner realization is crossed, but not limited to this: above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with any
Combined form is located in different processors.
It is described in detail below with reference to alternative embodiment of the present invention.
Alternative embodiment of the present invention provides a kind of model creation method of on-load regulator transformer, and Fig. 4 is according to this hair
The schematic diagram of the model creation method of the on-load regulator transformer of bright alternative embodiment, as shown in figure 4, on-load regulator transformer branch
Road ij comprising: ideal transformer (no-load voltage ratio ki) branch im and transformer admittance (gT+jbT) branch mj.Wherein, i, m and j
The both high side node 22, dummy node and low side node of on-load regulator transformer respectively, indicated in Fig. 4 the voltage of each node to
Amount (including real part e and imaginary part f) and injecting power vector (including active P and idle Q).
Branch between node m and j is treated as being conventional route, then the branch power between node m and j
Just it may be expressed as:
Since ideal transformer branch im does not have power loss, it may be assumed that
PTij=PTmj QTij=QTmj
PTji=PTjm QTji=QTjm
Therefore, the branch power that i-node flows to the branch power of j node and j node flows to i-node just may be expressed as:
As it can be seen that the branch power equation (5), (6), (7) and (8) of on-load regulator transformer is the secondary of node voltage
Type equation.
Further, since the no-load voltage ratio ki of ideal transformer is a real number, so the voltage phase angle of i-node and m node is equal,
And the ratio between voltage magnitude is ki, it may be assumed that
It can directly be obtained by formula (9):
eifm-emfi=0 (11)
And following deformation is done to formula (2.11) using formula (2.9):
Therefore it can obtain: ei-kiem=0 (13)
Formula (11) and (13) are exactly the voltage transfer equation of on-load regulator transformer, it is clear that they are also quadratic form equation.
By introducing dummy node m, the quadratic model of on-load regulator transformer is established.Wherein, formula (5), (6), (7)
(8) be on-load regulator transformer quadratic form power equation, formula (11) and (13) are the quadratic form electricity of on-load regulator transformer
Press transfer equation.
In an alternative embodiment, the quadratic model of on-load regulator transformer is proposed, the model is by there is the load can modulation
Dummy node is introduced in depressor model, and indicates that ideal transformer closes the conversion of power, voltage by the voltage of the node
System, making its objective function, equality constraints functions and inequality constraints function is primary or quadratic function.The second order of the model is led
Number is constant, and Hessian matrix is accurate constant coefficient matrix, only needs to calculate once, to contract in interior point method iterative process
The short calculating time of each iteration, improve calculating speed.
The embodiments of the present invention also provide a kind of storage medium, computer program is stored in the storage medium, wherein
The computer program is arranged to execute the step in any of the above-described embodiment of the method when operation.
Optionally, in the present embodiment, above-mentioned storage medium can be set to store by executing based on following steps
Calculation machine program:
The first branch of on-load regulator transformer in electric system is converted to second branch by S1；
S2 creates dummy node in second branch；
S3, according to the model of dummy node and the branch parameters of second branch creation on-load regulator transformer.
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (Read-
Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard
The various media that can store computer program such as disk, magnetic or disk.
The embodiments of the present invention also provide a kind of electronic device, including memory and processor, stored in the memory
There is computer program, which is arranged to run computer program to execute the step in any of the above-described embodiment of the method
Suddenly.
Optionally, above-mentioned electronic device can also include transmission device and input-output equipment, wherein the transmission device
It is connected with above-mentioned processor, which connects with above-mentioned processor.
Optionally, in the present embodiment, above-mentioned processor can be set to execute following steps by computer program:
The first branch of on-load regulator transformer in electric system is converted to second branch by S1；
S2 creates dummy node in second branch；
S3, according to the model of dummy node and the branch parameters of second branch creation on-load regulator transformer.
Optionally, the specific example in the present embodiment can be with reference to described in above-described embodiment and optional embodiment
Example, details are not described herein for the present embodiment.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.It is all within principle of the invention, it is made it is any modification, etc.
With replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of model creation method of on-load regulator transformer characterized by comprising
The first branch of on-load regulator transformer in electric system is converted into second branch；
Dummy node is created in the second branch；
The model of the on-load regulator transformer is created according to the branch parameters of the dummy node and the second branch.
2. the method according to claim 1, wherein by the first branch of on-load regulator transformer in electric system
Being converted to second branch includes:
The ideal transformer branch and transformer admittance branch of target no-load voltage ratio parameter are extracted from the first branch, wherein institute
Stating branch parameters includes the target no-load voltage ratio parameter；
The branch obtained after the ideal transformer branch and the series connection of transformer admittance branch is determined as the second branch.
3. according to the method described in claim 2, it is characterized in that, creation dummy node includes: in the second branch
Node between the ideal transformer branch and transformer admittance branch is determined as the dummy node；
Create the first power module between the dummy node and the low side node of the second branch.
4. according to the method described in claim 3, it is characterized in that, according to the branch of the dummy node and the second branch
The model that parameter creates the on-load regulator transformer includes at least one of:
First power module is determined as to the second power module of the on-load regulator transformer；
The voltage model of the on-load regulator transformer is created according to first power module and the target no-load voltage ratio parameter.
5. a kind of model creation device of on-load regulator transformer characterized by comprising
Conversion module, for the first branch of on-load regulator transformer in electric system to be converted to second branch；
First creation module, for creating dummy node in the second branch；
Second creation module, for creating the on-load voltage regulation according to the dummy node and the branch parameters of the second branch
The model of transformer.
6. device according to claim 5, which is characterized in that the conversion module includes:
Extraction unit, for extracting ideal transformer branch and the transformer admittance of target no-load voltage ratio parameter from the first branch
Branch, wherein the branch parameters include the target no-load voltage ratio parameter；
First determination unit, for determining the branch obtained after the ideal transformer branch and the series connection of transformer admittance branch
For the second branch.
7. device according to claim 6, which is characterized in that first creation module includes:
Second determination unit, it is described for the node between the ideal transformer branch and transformer admittance branch to be determined as
Dummy node；
First creating unit, for creating the first power between the dummy node and the low side node of the second branch
Model.
8. device according to claim 7, which is characterized in that second creation module includes at least one of:
Third determination unit, for first power module to be determined as to the second power mould of the on-load regulator transformer
Type；
Second creating unit becomes for creating the on-load voltage regulation according to first power module and the target no-load voltage ratio parameter
The voltage model of depressor.
9. a kind of storage medium, which is characterized in that be stored with computer program in the storage medium, wherein the computer
Program is arranged to execute method described in any one of Claims 1-4 when operation.
10. a kind of electronic device, including memory and processor, which is characterized in that be stored with computer journey in the memory
Sequence, the processor are arranged to run the computer program to execute side described in any one of Claims 1-4
Method.
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