CN114896029A - Power system simulation optimization calculation method, device, equipment and readable storage medium - Google Patents
Power system simulation optimization calculation method, device, equipment and readable storage medium Download PDFInfo
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Abstract
The application discloses a method, a device, equipment and a readable storage medium for simulation optimization calculation of a power system, wherein the method comprises the following steps: the method comprises the steps of obtaining a target circuit to be subjected to simulation calculation and a plurality of threads corresponding to the target circuit, determining simulation calculation time consumption of each simulation task in the target circuit, and determining a plurality of distribution modes of each simulation task distributed to each thread for simulation calculation according to the simulation calculation time consumption and the incidence relation of each simulation task. And finally, determining a target distribution mode with the shortest total simulation calculation time for completing all the simulation tasks according to the simulation calculation time consumption of each simulation task and the electric distribution mode corresponding to each electric element or the control distribution mode corresponding to each control element in each distribution mode, and distributing each simulation task to each thread for simulation calculation according to the target distribution mode. According to the method and the device, the target distribution mode which consumes the shortest time can be quickly determined from a plurality of distribution modes, and accelerated optimization of a simulation process of the power system is achieved.
Description
Technical Field
The present application relates to the field of power system technologies, and in particular, to a method, an apparatus, a device, and a readable storage medium for power system simulation optimization calculation.
Background
In recent years, the power system simulation calculation increasingly depends on the strong calculation power of a calculation hardware system to hope to accelerate the solving process. Because the existing computing hardware system has sufficient computing resources and storage resources, the system has obvious advantages compared with the traditional single computer. However, with the interconnection of regional power grids, the scale of the power system is continuously enlarged, so that the scale of simulation calculation and the operation complexity of the power system are increasingly complicated. However, the existing computing method does not fully consider the influence of the distribution and the sequence arrangement of each simulation task on the final computing time under the condition that the computing tasks are multi-threaded such as a multi-CPU core, a multi-CPU and a multi-computer, and the theoretical and practical shortest simulation computing time is difficult to achieve.
Therefore, how to reasonably utilize the resources of the computing hardware system, shorten the simulation computation time of the power system and improve the simulation efficiency is a problem worthy of research.
Disclosure of Invention
In view of this, the present application provides a method, an apparatus, a device and a readable storage medium for optimizing simulation of an electrical power system, which are used to reasonably utilize computing hardware system resources to shorten simulation computation time of the electrical power system and improve simulation efficiency.
In order to achieve the above object, the following solutions are proposed:
a power system simulation optimization calculation method comprises the following steps:
acquiring a target circuit to be subjected to simulation calculation and a plurality of threads corresponding to the target circuit, wherein the threads are used for the simulation calculation of the target circuit, and the target circuit comprises a plurality of control elements and a plurality of electrical elements;
determining a plurality of simulation tasks corresponding to the target circuit and time consumption of simulation calculation of each simulation task, wherein the plurality of simulation tasks comprise simulation calculation of each control element, simulation calculation of each electrical element and matrix inversion calculation corresponding to the simulation calculation of each electrical element;
distributing each simulation task to each thread for simulation calculation according to the simulation calculation time consumption and the incidence relation of each simulation task to obtain a plurality of distribution modes;
according to the simulation calculation time consumption of each simulation task and the electric distribution mode corresponding to each electric element or the control distribution mode corresponding to each control element in each distribution mode, determining a target distribution mode with the shortest total simulation calculation time consumption for completing all the simulation tasks in the distribution modes, and distributing each simulation task to each thread for simulation calculation according to the target distribution mode.
Preferably, the association relationship between the simulation tasks includes:
the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process, the precedence relation and the parallel relation of the simulation tasks corresponding to the control elements in the simulation process and the precedence relation of the simulation tasks corresponding to the control elements and the simulation tasks of all the electrical elements are calculated through matrix inversion;
determining one allocation mode of allocating each simulation task to each thread for simulation calculation according to the simulation calculation time consumption of each simulation task and the incidence relation among the simulation tasks, wherein the allocation mode comprises the following steps:
distributing the simulation tasks corresponding to the electrical elements to the threads according to the consumed simulation calculation time of the simulation tasks corresponding to the electrical elements and the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process;
distributing the simulation tasks corresponding to the control elements to the threads according to the simulation calculation time consumption of the simulation tasks corresponding to the control elements and the precedence and parallel relations of the simulation tasks corresponding to the control elements in the simulation process;
and distributing the simulation task corresponding to the matrix inversion calculation to any one thread according to the simulation calculation time consumption of the simulation task corresponding to each electrical element and the sequence relation between the simulation task corresponding to the matrix inversion calculation and the simulation tasks of all the electrical elements.
Preferably, according to the time consumed by simulation calculation of each simulation task and the electrical distribution mode corresponding to each electrical component or the control distribution mode corresponding to each control component in each distribution mode, in the plurality of distribution modes, the determining of the target distribution mode that is the shortest in total time consumed by completing the simulation calculation of all the simulation tasks includes:
randomly sequencing and numbering a plurality of distribution modes;
subtracting the total simulation calculation time of each simulation task of the first distribution mode from the time of matrix inversion calculation to obtain candidate time;
comparing the total electrical consumption of the simulation tasks corresponding to the electrical elements in each distribution mode, or the total control consumption of the simulation tasks corresponding to the control elements, or the total comprehensive consumption obtained by adding the total electrical consumption and the total control consumption with the candidate consumption from the second distribution mode according to the numbering sequence;
and after all the distribution modes are compared, obtaining the final candidate consumed time, and determining the distribution mode corresponding to the final candidate consumed time as a target distribution mode.
Preferably, the comparing, with the candidate consumed time, the total electrical consumed time of the simulation task corresponding to each electrical element in each allocation manner, or the total control consumed time of the simulation task corresponding to each control element, or the total integrated consumed time obtained by adding the total electrical consumed time and the total control consumed time, includes:
if the total electrical consumption is greater than or equal to the candidate consumption, eliminating the current distribution mode and other distribution modes with the same electrical distribution mode as the current distribution mode;
if the total control consumed time is greater than or equal to the candidate consumed time, eliminating the current distribution mode and other distribution modes with the same control distribution mode as the current distribution mode;
and if the comprehensive total time consumption is less than the candidate time consumption, subtracting the time consumption of matrix inversion calculation from the total time consumption of simulation calculation of each simulation task of the current distribution mode, and taking the obtained time consumption as the new candidate time consumption.
A power system simulation optimization computing device, comprising:
the target circuit acquisition unit is used for acquiring a target circuit to be subjected to simulation calculation and a plurality of threads corresponding to the target circuit, the threads are used for the simulation calculation of the target circuit, and the target circuit comprises a plurality of control elements and a plurality of electrical elements;
a simulation task determination unit, configured to determine a plurality of simulation tasks corresponding to the target circuit and time consumption for simulation calculation of each simulation task, where the plurality of simulation tasks include simulation calculation of each control element, simulation calculation of each electrical element, and matrix inversion calculation corresponding to the simulation calculation of each electrical element;
the task allocation unit is used for allocating each simulation task to each thread for simulation calculation according to the simulation calculation time consumption and the incidence relation of each simulation task to obtain a plurality of allocation modes;
and the target distribution determining unit is used for determining a target distribution mode with the shortest total simulation calculation time in the plurality of distribution modes according to the simulation calculation time consumption of each simulation task and the electric distribution mode corresponding to each electric element or the control distribution mode corresponding to each control element in each distribution mode, and distributing each simulation task to each thread for simulation calculation according to the target distribution mode.
Preferably, the association relationship between the simulation tasks includes:
the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process, the precedence relation and the parallel relation of the simulation tasks corresponding to the control elements in the simulation process and the precedence relation of the simulation tasks corresponding to the control elements and the simulation tasks of all the electrical elements are calculated through matrix inversion;
the task allocation unit includes:
the first task allocation subunit is used for allocating the simulation tasks corresponding to the electrical elements to the threads according to the simulation calculation time consumption of the simulation tasks corresponding to the electrical elements and the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process;
the second task allocation subunit is used for allocating the simulation tasks corresponding to the control elements to the threads according to the simulation calculation time consumption of the simulation tasks corresponding to the control elements and the precedence and parallel relations of the simulation tasks corresponding to the control elements in the simulation process;
and the third task allocation subunit is used for allocating the simulation task corresponding to the matrix inversion calculation to any one of the threads according to the simulation calculation time consumption of the simulation task corresponding to each electrical element and the sequence relation between the simulation task corresponding to the matrix inversion calculation and the simulation tasks of all the electrical elements.
Preferably, the target allocation manner determining unit includes:
the sorting unit is used for randomly sorting and numbering the distribution modes;
a subsequent time-consuming determining unit, configured to subtract the total simulation computation time of each simulation task of the first allocation from the time-consuming of the matrix inversion computation to obtain candidate time-consuming;
a time consumption comparing unit, configured to compare, starting from the second distribution manner according to the numbering sequence, the total electrical time consumption of the simulation task corresponding to each electrical element in each distribution manner, or the total control time consumption of the simulation task corresponding to each control element, or the total comprehensive time consumption obtained by adding the total electrical time consumption and the total control time consumption, with the candidate time consumption;
and the target distribution mode selection unit is used for comparing all the distribution modes to obtain final candidate consumed time and determining the distribution mode corresponding to the final candidate consumed time as the target distribution mode.
Preferably, the time-consuming comparison unit includes:
a first time-consuming comparing subunit, configured to eliminate the current distribution manner and other distribution manners having the same electrical distribution manner as the current distribution manner if the total electrical time-consuming is greater than or equal to the candidate time-consuming;
a second time-consuming comparing subunit, configured to eliminate the current allocation manner and other allocation manners having the same control allocation manner as the current allocation manner if the total control time-consuming is greater than or equal to the candidate time-consuming;
and a third time consumption comparison subunit, configured to, if the total integrated time consumption is smaller than the candidate time consumption, subtract the total simulation calculation time consumption of each simulation task of the current allocation manner from the time consumption of the matrix inversion calculation, and use the obtained time consumption as a new candidate time consumption.
A power system simulation optimization computing device comprising a memory and a processor;
the memory is used for storing programs;
the processor is used for executing the program and realizing the steps of the power system simulation optimization calculation method.
A readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the above-described power system simulation optimization calculation method.
According to the scheme, the power system simulation optimization calculation method can be used for firstly obtaining a target circuit to be subjected to simulation calculation, wherein the target circuit comprises a plurality of control elements and a plurality of electric elements, so that a plurality of simulation tasks corresponding to the target circuit can be determined, the simulation calculation of each control element is used as one simulation task, the simulation calculation of each electric element is also used as one simulation task, and the matrix inversion calculation corresponding to the simulation calculation of each electric element can be used as one simulation task; and then determining the simulation computation time consumption of each simulation task, determining a plurality of threads for the simulation computation of the target circuit from computer hardware resources, and determining a plurality of allocation modes of each simulation task allocated to each thread for the simulation computation according to the simulation computation time consumption of each simulation task and the incidence relation among the simulation tasks. Obviously, each simulation task is distributed to each thread for simulation calculation, parallel simulation calculation can be achieved, and compared with serial simulation, the parallel simulation calculation method is shorter in time and higher in efficiency. And finally, according to the simulation calculation time consumption of each simulation task and the electric distribution mode corresponding to each electric element or the control distribution mode corresponding to each control element in each distribution mode, determining a target distribution mode which is the shortest in total simulation calculation time consumption for completing all the simulation tasks in the plurality of distribution modes, and distributing each simulation task to each thread for simulation calculation according to the target distribution mode.
Therefore, the method can not only perform parallel simulation calculation on each simulation task, but also quickly determine the target distribution mode with the shortest total simulation calculation time from a plurality of distribution modes, and takes the target distribution mode as the simulation calculation mode of the current simulation step length, thereby further shortening the determination time of the optimal distribution mode on the basis of effectively shortening the simulation calculation time of the power system and greatly improving the simulation efficiency of the power system.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flowchart of a calculation method for simulation optimization of an electric power system according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a target circuit to be simulated according to an embodiment of the present disclosure;
FIG. 3 is a diagram illustrating a relationship between simulation calculations for a target circuit according to an embodiment of the present disclosure;
4a-b are schematic diagrams of two distribution modes of simulation tasks disclosed in the embodiment of the present application;
fig. 5 is a schematic structural diagram of a power system simulation optimization computing apparatus disclosed in an embodiment of the present application;
fig. 6 is a block diagram of a hardware structure of a power system simulation optimization computing device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic flow chart of a power system simulation optimization calculation method provided in an embodiment of the present application, where the method includes:
step S100: the method comprises the steps of obtaining a target circuit to be subjected to simulation calculation and a plurality of threads corresponding to the target circuit, wherein the threads are used for the simulation calculation of the target circuit, and the target circuit comprises a plurality of control elements and a plurality of electric elements.
Specifically, the simulation duration of each simulation step may be arbitrarily set by the user, for example: tens of microseconds, or hundreds of microseconds, and the acquired target circuit needs to complete at least one simulation calculation at the current simulation step size.
The target circuit is a circuit which needs simulation calculation and can be a partial circuit in the regional power grid or other circuits which are designated manually, and the target circuit can comprise a plurality of control elements and a plurality of electrical elements.
For a visual introduction of the simulation circuit, reference may be made to fig. 2, which illustrates an alternative target circuit to be calculated for simulation.
The control elements of the target circuit may be represented as control 1-control 4 in fig. 2, and may be referred to simply as C1-C4, respectively; the controlled voltage source DC, the resistor R, the capacitor C, and the inductor L are electrical elements in the target circuit, and may be referred to as P1-P4. The simulation of the current simulation step size to the target circuit can be that the simulation calculation is carried out on each of the control elements C1-C4 and each of the electrical elements P1-P4 according to the connection relation of the target circuit in a certain sequence.
In addition, since there are cases where a multi-CPU core, a multi-CPU, and multi-computer resources are available for simulation in actual simulation calculation, a plurality of threads of hardware resources for target circuit simulation calculation can be specified.
The threads may be manually assigned number of threads, or may be idle and actually available threads, and the number of threads is determined according to specific situations.
In an alternative embodiment, the number of threads may be the same as the maximum of the number of electrical elements and the number of control elements that can be paralleled, i.e. it may be ensured that the number of threads meets the number of maximum parallel simulation calculations for the electrical elements or the control elements.
Step S110: and determining a plurality of simulation tasks corresponding to the target circuit and the simulation calculation time of each simulation task.
Specifically, the simulation calculation of each control element may be performed as one simulation task, the simulation calculation of each electrical element may be performed as one simulation task, and the matrix inversion calculation corresponding to the simulation calculation of each electrical element may be performed as one simulation task, so that the plurality of simulation tasks may include the simulation calculation of each control element, the simulation calculation of each electrical element, and the matrix inversion calculation.
The matrix inversion calculation described above may be an N × N matrix inversion calculation having a number of electrical elements in the number of dimensions. Taking the target circuit of fig. 2 as an example, which includes 4 electrical elements, the matrix inversion calculation of the target circuit may be a 4 × 4 matrix inversion calculation. In addition, each simulation step length of matrix inversion calculation can be only once, and the corresponding simulation calculation time is generally positively correlated with the matrix dimension N.
Specifically, each simulation task needs to consume a certain time during simulation calculation, and the specific time duration is different according to the self characteristics of each element and the connection relationship of the target circuit.
The simulation calculation of the electrical elements described above may be a calculation time for solving the historical current of each electrical element.
In addition, the control element and the electric element are calculation subjects of target circuit simulation calculation, one communication may occur after calculation of any two calculation subjects according to a preset communication relation, the communication data amount is determined according to actual conditions, and the general communication time is far shorter than the simulation calculation time.
Step S120: and distributing each simulation task to each thread for simulation calculation according to the simulation calculation time consumption and the incidence relation of each simulation task to obtain a plurality of distribution modes.
Specifically, each simulation task can be allocated to each thread for simulation according to the time consumed by simulation calculation of each simulation task, and the simulation sequence relationship of the allocated simulation tasks can meet the incidence relationship among the simulation tasks.
Step S130: and determining the target distribution mode which has the shortest total time consumption for completing the simulation calculation of all the simulation tasks in the plurality of distribution modes.
Specifically, there may be a plurality of threads and simulation tasks, and there are a plurality of distribution manners of each simulation task on each thread, so that according to the simulation calculation time consumption of each simulation task and the electrical distribution manner corresponding to each electrical component or the control distribution manner corresponding to each control component in each distribution manner, the distribution manner with the shortest total simulation calculation time consumption is selected from the plurality of distribution manners as the target distribution manner. The electrical distribution mode of each distribution mode may be a distribution mode of the simulation tasks corresponding to the respective electrical elements in the plurality of threads, and the control distribution mode may be a distribution mode of the simulation tasks corresponding to the respective control elements in the plurality of threads.
Then, each simulation task can be allocated to each thread for simulation calculation according to the target allocation mode.
According to the scheme, firstly, the simulation calculation time consumption of each control element and each electric element of the target circuit and the time consumption of matrix inversion calculation corresponding to each electric element are determined, and then the simulation task allocation mode with the shortest total simulation calculation time consumption is determined as the target allocation mode according to the multiple threads for simulation calculation. Obviously, on the basis of selecting the simulation calculation mode with the shortest total time consumption, the method further selects the target distribution mode with the shortest time consumption from the plurality of distribution modes according to the simulation calculation time consumption of each simulation task and the electric distribution mode corresponding to each electric element or the control distribution mode corresponding to each control element in each distribution mode, performs simulation calculation according to the target distribution mode, can shorten the total time of the simulation process of the power system, and accelerates the process of the simulation of the power system.
In some embodiments of the present application, the above step S120 is introduced: and according to the time consumption of the simulation calculation of each simulation task and the incidence relation, distributing each simulation task to each thread for simulation calculation to obtain a plurality of distribution modes.
Specifically, the association relationship between each simulation task may include: and the matrix inversion calculates the precedence relationship between the corresponding simulation tasks and the simulation tasks of all the electric elements.
The simulation tasks corresponding to the electrical elements can be processed in different threads simultaneously or sequentially in the same thread, and the specific processing sequence relation can be determined according to actual conditions.
Because the matrix inversion calculation may be performed only once in each simulation step, the precedence relationship between the simulation tasks corresponding to the matrix inversion calculation and the simulation tasks of all the electrical elements may be: firstly, processing and finishing simulation tasks corresponding to all the electric elements, and calculating the corresponding simulation tasks in a processing matrix inversion mode.
In addition, the connection relations of the control elements in different target circuits are different, the simulation calculation precedence relation of the control elements of the target circuits can be determined by the circuit connection relation, and the simulation calculation parallel relation can accord with the logic relation of the circuit connection relation.
Next, the precedence relationship and the parallel relationship of the simulation tasks corresponding to each control element will be described by using specific examples, please refer to fig. 3 for details, and fig. 3 is a schematic diagram of the simulation calculation relationship of the target circuit shown in fig. 2.
Where P1 to P4 correspond to the respective electrical elements in fig. 2, and R is a matrix inversion calculation of the respective electrical elements.
C1 to C4 correspond to the control elements of control1 to control4 in fig. 2, and it can be known from the connection relationship of the target circuit that the control element C2 must wait for C1 before starting the simulation, and the control element C4 must wait for C2 and C3 before starting the simulation, so that the simulation calculation order and the parallel relationship of the two branch line order as shown in fig. 3 can be obtained: C1-C2-C4 and C3-C4.
Then, step S120 introduced above: according to the simulation computation time consumption and the incidence relation of each simulation task, each simulation task is allocated to each thread for simulation computation, and a process of obtaining a plurality of allocation modes can include:
and S1, distributing the simulation tasks corresponding to the electrical elements to the threads according to the consumed simulation calculation time of the simulation tasks corresponding to the electrical elements and the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process.
And S2, distributing the simulation tasks corresponding to the control elements to the threads according to the consumed simulation calculation time of the simulation tasks corresponding to the control elements and the precedence and parallel relations of the simulation tasks corresponding to the control elements in the simulation process.
And S3, distributing the simulation tasks corresponding to the matrix inversion calculation to any one thread according to the simulation calculation time consumption of the simulation tasks corresponding to the electrical elements and the sequence relation between the simulation tasks corresponding to the matrix inversion calculation and the simulation tasks of all the electrical elements.
According to the scheme, the association relation of each simulation task is listed, so that each simulation task is conveniently distributed to each thread for processing according to the association relation.
In some embodiments of the present application, the above step S130 is introduced: in the plurality of allocation manners, a process of determining a target allocation manner that takes the shortest total time for completing simulation calculation of all the simulation tasks is determined, and the process will be further described.
Specifically, the allocation method of the process may be introduced first:
the simulation tasks comprise simulation calculation of the electrical elements, matrix calculation of the electrical elements and simulation calculation of the control elements, the matrix calculation can be performed after the simulation calculation of each electrical element is completed, the simulation calculation of the control elements needs to be divided into a plurality of parallel branch lines according to the connection relation of the target circuit, and all distribution modes of the simulation tasks distributed in each thread are determined based on the simulation sequence and the logic.
Next, the above distribution manner will be described by taking a specific example, and two alternative simulation task distribution manners of the target circuit will be described by taking the schematic diagram of the simulation calculation relationship shown in fig. 3 as an example.
Referring to fig. 4a-b, which illustrate two alternative allocation manners of simulation tasks of the target circuit, it can be seen that fig. 4a fully considers the sequence of the simulation tasks, and compared with the allocation manner illustrated in fig. 4b, the allocation manner has a shorter simulation ending time and relatively higher simulation efficiency.
Then, the obtained multiple distribution modes can be traversed to select the distribution mode with the shortest total simulation computation time, and the traversal process can refer to the following description:
and S1, randomly ordering and numbering the distribution modes.
Specifically, in order to better perform the traversal process, the sorting may be performed in multiple distribution manners, and the sorting basis may be random or may be a rule specified by a user.
And S2, subtracting the total simulation calculation time of each simulation task of the first distribution mode by the time consumption of matrix inversion calculation to obtain candidate time consumption.
And distributing each simulation task according to each distribution mode and carrying out simulation calculation, wherein each distribution mode can correspond to one total time consumption for completing the simulation calculation of all the simulation tasks, and the total time consumption can be used for subtracting the time consumption of matrix inversion calculation to obtain candidate time consumption.
And S3, starting from the second distribution mode according to the numbering sequence, and comparing the total electric consumption of the simulation task corresponding to each electric element in each distribution mode, or the total control consumption of the simulation task corresponding to each control element, or the total comprehensive consumption obtained by adding the total electric consumption and the total control consumption with the candidate consumption.
Under each distribution mode, the time consumed for completing the simulation tasks corresponding to all the electrical elements can be used as the total electrical time consumed, the time consumed for completing the simulation tasks corresponding to all the control elements can be used as the total control time consumed, and the total electrical time consumed and the total control time consumed are added to obtain the total comprehensive time consumed.
Starting from the second distribution mode in the numbering order, the total electric time, the total control time or the total comprehensive time according to each distribution mode is compared with the candidate time obtained in the step S2.
And S4, comparing all the distribution modes to obtain final candidate consumed time, and determining the distribution mode corresponding to the final candidate consumed time as a target distribution mode.
Further, the detailed description of the step S3 may specifically include the following cases:
if the total electrical consumption is greater than or equal to the candidate consumption, it may be indicated that the electrical distribution manner in the current distribution manner is inferior to the electrical distribution manner in the distribution manner corresponding to the candidate consumption, and then the current distribution manner and other distribution manners having the same electrical distribution manner as the current distribution manner may be eliminated, and the eliminated distribution manner may no longer participate in the subsequent process of comparing the candidate consumption with the candidate consumption.
If the total control consumed time is greater than or equal to the candidate consumed time, it can be stated that the control allocation manner in the current allocation manner is inferior to the control allocation manner in the allocation manner corresponding to the candidate consumed time, and the current allocation manner and other allocation manners having the same control allocation manner as the current allocation manner can be eliminated;
if the total integrated time consumption is less than the candidate time consumption, it can be stated that the current distribution mode is superior to the distribution mode corresponding to the candidate time consumption, and then the total simulation calculation time consumption of each simulation task of the current distribution mode can be subtracted by the time consumption of matrix inversion calculation, and the obtained time consumption is used as the new candidate time consumption.
According to the scheme, the distribution mode with the shortest time and the target simulation calculation mode can be obtained by sequentially traversing all the distribution modes according to the time analysis, and optimization and acceleration of simulation calculation are realized.
The following describes the power system simulation optimization calculation device provided in the embodiment of the present application, and the power system simulation optimization calculation device described below and the power system simulation optimization calculation method described above may be referred to in correspondence with each other.
First, the power system simulation optimization calculation apparatus is described with reference to fig. 5, and as shown in fig. 5, the power system simulation optimization calculation apparatus may include:
a target circuit obtaining unit 100, configured to obtain a target circuit to be subjected to simulation calculation and a plurality of threads corresponding to the target circuit, where the threads are used for the simulation calculation of the target circuit, and the target circuit includes a plurality of control elements and a plurality of electrical elements;
a simulation task determination unit 110, configured to determine a plurality of simulation tasks corresponding to the target circuit, and time consumption for simulation calculation of each simulation task, where the plurality of simulation tasks include simulation calculation of each control element, simulation calculation of each electrical element, and matrix inversion calculation corresponding to the simulation calculation of each electrical element;
the task allocation unit 120 is configured to allocate each simulation task to each thread for simulation calculation according to the simulation calculation time consumption and the association relationship of each simulation task, so as to obtain a plurality of allocation manners;
and the target allocation determining unit 130 is configured to determine, according to the simulation calculation time consumption of each simulation task and the electrical allocation manner corresponding to each electrical element or the control allocation manner corresponding to each control element in each allocation manner, a target allocation manner with the shortest total simulation calculation time consumption for completing all the simulation tasks in the plurality of allocation manners, and allocate each simulation task to each thread for simulation calculation according to the target allocation manner.
Optionally, the association relationship between the simulation tasks includes:
the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process, the precedence relation and the parallel relation of the simulation tasks corresponding to the control elements in the simulation process and the precedence relation of the simulation tasks corresponding to the control elements and the simulation tasks of all the electrical elements are calculated through matrix inversion;
the task allocation unit includes:
the first task allocation subunit is used for allocating the simulation tasks corresponding to the electrical elements to the threads according to the simulation calculation time consumption of the simulation tasks corresponding to the electrical elements and the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process;
the second task allocation subunit is used for allocating the simulation tasks corresponding to the control elements to the threads according to the simulation calculation time consumption of the simulation tasks corresponding to the control elements and the precedence and parallel relations of the simulation tasks corresponding to the control elements in the simulation process;
and the third task allocation subunit is used for allocating the simulation task corresponding to the matrix inversion calculation to any one of the threads according to the simulation calculation time consumption of the simulation task corresponding to each electrical element and the sequence relation between the simulation task corresponding to the matrix inversion calculation and the simulation tasks of all the electrical elements.
Optionally, the target allocation manner determining unit includes:
the sorting unit is used for randomly sorting and numbering the distribution modes;
a subsequent time-consuming determining unit, configured to subtract the total simulation computation time of each simulation task of the first allocation from the time-consuming of the matrix inversion computation to obtain candidate time-consuming;
a time consumption comparing unit, configured to compare, starting from the second distribution manner according to the numbering sequence, the total electrical time consumption of the simulation task corresponding to each electrical element in each distribution manner, or the total control time consumption of the simulation task corresponding to each control element, or the total comprehensive time consumption obtained by adding the total electrical time consumption and the total control time consumption, with the candidate time consumption;
and the target distribution mode selection unit is used for comparing all the distribution modes to obtain final candidate consumed time and determining the distribution mode corresponding to the final candidate consumed time as the target distribution mode.
Optionally, the time-consuming comparing unit includes:
a first time-consuming comparing subunit, configured to eliminate the current distribution manner and other distribution manners having the same electrical distribution manner as the current distribution manner if the total electrical time-consuming is greater than or equal to the candidate time-consuming;
a second time consumption comparing subunit, configured to eliminate the current allocation manner and other allocation manners having the same control allocation manner as the current allocation manner if the total control time consumption is greater than or equal to the candidate time consumption;
and a third time consumption comparison subunit, configured to, if the total integrated time consumption is smaller than the candidate time consumption, subtract the total simulation calculation time consumption of each simulation task of the current allocation manner from the time consumption of the matrix inversion calculation, and use the obtained time consumption as a new candidate time consumption.
The electric power system simulation optimization computing device provided by the embodiment of the application can be applied to electric power system simulation optimization computing equipment. Fig. 6 is a block diagram illustrating a hardware structure of the power system simulation optimizing computing device, and referring to fig. 6, the hardware structure of the power system simulation optimizing computing device may include: at least one processor 1, at least one communication interface 2, at least one memory 3 and at least one communication bus 4;
in the embodiment of the application, the number of the processor 1, the communication interface 2, the memory 3 and the communication bus 4 is at least one, and the processor 1, the communication interface 2 and the memory 3 complete mutual communication through the communication bus 4;
the processor 1 may be a central processing unit CPU, or an application Specific Integrated circuit asic, or one or more Integrated circuits configured to implement embodiments of the present invention, etc.;
the memory 3 may include a high-speed RAM memory, and may further include a non-volatile memory (non-volatile memory) or the like, such as at least one disk memory;
wherein the memory stores a program and the processor can call the program stored in the memory, the program for:
acquiring a target circuit to be subjected to simulation calculation and a plurality of threads corresponding to the target circuit, wherein the threads are used for the simulation calculation of the target circuit, and the target circuit comprises a plurality of control elements and a plurality of electrical elements;
determining a plurality of simulation tasks corresponding to the target circuit and time consumption of simulation calculation of each simulation task, wherein the plurality of simulation tasks comprise simulation calculation of each control element, simulation calculation of each electrical element and matrix inversion calculation corresponding to the simulation calculation of each electrical element;
distributing each simulation task to each thread for simulation calculation according to the simulation calculation time consumption and the incidence relation of each simulation task to obtain a plurality of distribution modes;
according to the simulation calculation time consumption of each simulation task and the electric distribution mode corresponding to each electric element or the control distribution mode corresponding to each control element in each distribution mode, determining a target distribution mode with the shortest total simulation calculation time consumption for completing all the simulation tasks in the distribution modes, and distributing each simulation task to each thread for simulation calculation according to the target distribution mode.
Alternatively, the detailed function and the extended function of the program may be as described above.
Embodiments of the present application further provide a storage medium, where a program suitable for execution by a processor may be stored, where the program is configured to:
acquiring a target circuit to be subjected to simulation calculation and a plurality of threads corresponding to the target circuit, wherein the threads are used for the simulation calculation of the target circuit, and the target circuit comprises a plurality of control elements and a plurality of electrical elements;
determining a plurality of simulation tasks corresponding to the target circuit and time consumption of simulation calculation of each simulation task, wherein the plurality of simulation tasks comprise simulation calculation of each control element, simulation calculation of each electrical element and matrix inversion calculation corresponding to the simulation calculation of each electrical element;
distributing each simulation task to each thread for simulation calculation according to the simulation calculation time consumption and the incidence relation of each simulation task to obtain a plurality of distribution modes;
according to the simulation calculation time consumption of each simulation task and the electric distribution mode corresponding to each electric element or the control distribution mode corresponding to each control element in each distribution mode, determining a target distribution mode with the shortest total simulation calculation time consumption for completing all the simulation tasks in the distribution modes, and distributing each simulation task to each thread for simulation calculation according to the target distribution mode.
Alternatively, the detailed function and the extended function of the program may be as described above.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A power system simulation optimization calculation method is characterized by comprising the following steps:
acquiring a target circuit to be subjected to simulation calculation and a plurality of threads corresponding to the target circuit, wherein the threads are used for the simulation calculation of the target circuit, and the target circuit comprises a plurality of control elements and a plurality of electrical elements;
determining a plurality of simulation tasks corresponding to the target circuit and time consumption of simulation calculation of each simulation task, wherein the plurality of simulation tasks comprise simulation calculation of each control element, simulation calculation of each electrical element and matrix inversion calculation corresponding to the simulation calculation of each electrical element;
distributing each simulation task to each thread for simulation calculation according to the simulation calculation time consumption and the incidence relation of each simulation task to obtain a plurality of distribution modes;
according to the simulation calculation time consumption of each simulation task and the electric distribution mode corresponding to each electric element or the control distribution mode corresponding to each control element in each distribution mode, determining a target distribution mode with the shortest total simulation calculation time consumption for completing all the simulation tasks in the distribution modes, and distributing each simulation task to each thread for simulation calculation according to the target distribution mode.
2. The method according to claim 1, wherein the association relationship between the simulation tasks comprises:
the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process, the precedence relation and the parallel relation of the simulation tasks corresponding to the control elements in the simulation process and the precedence relation of the simulation tasks corresponding to the control elements and the simulation tasks of all the electrical elements are calculated through matrix inversion;
determining one allocation mode of allocating each simulation task to each thread for simulation calculation according to the simulation calculation time consumption of each simulation task and the incidence relation among the simulation tasks, wherein the allocation mode comprises the following steps:
distributing the simulation tasks corresponding to the electrical elements to the threads according to the consumed simulation calculation time of the simulation tasks corresponding to the electrical elements and the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process;
distributing the simulation tasks corresponding to the control elements to the threads according to the simulation calculation time consumption of the simulation tasks corresponding to the control elements and the precedence and parallel relations of the simulation tasks corresponding to the control elements in the simulation process;
and distributing the simulation task corresponding to the matrix inversion calculation to any one thread according to the simulation calculation time consumption of the simulation task corresponding to each electrical element and the sequence relation between the simulation task corresponding to the matrix inversion calculation and the simulation tasks of all the electrical elements.
3. The method according to claim 1, wherein the determining, in the plurality of distribution manners, the target distribution manner that is the shortest in total time required for completing the simulation calculation of all the simulation tasks according to the simulation calculation time of each of the simulation tasks and the electrical distribution manner corresponding to each electrical component or the control distribution manner corresponding to each control component in each of the distribution manners comprises:
randomly sequencing and numbering a plurality of distribution modes;
subtracting the total simulation calculation time of each simulation task of the first distribution mode from the time of matrix inversion calculation to obtain candidate time;
comparing the total electrical consumption of the simulation tasks corresponding to the electrical elements in each distribution mode, or the total control consumption of the simulation tasks corresponding to the control elements, or the total comprehensive consumption obtained by adding the total electrical consumption and the total control consumption with the candidate consumption from the second distribution mode according to the numbering sequence;
and after comparing all the distribution modes, obtaining the final candidate consumed time, and determining the distribution mode corresponding to the final candidate consumed time as a target distribution mode.
4. The method according to claim 3, wherein comparing the total electrical consumption of the simulation task corresponding to each electrical component, or the total control consumption of the simulation task corresponding to each control component, or the total combined total consumption obtained by adding the total electrical consumption and the total control consumption in each distribution mode with the candidate consumption comprises:
if the total electrical consumption is greater than or equal to the candidate consumption, eliminating the current distribution mode and other distribution modes with the same electrical distribution mode as the current distribution mode;
if the total control consumed time is greater than or equal to the candidate consumed time, eliminating the current distribution mode and other distribution modes with the same control distribution mode as the current distribution mode;
and if the comprehensive total time consumption is less than the candidate time consumption, subtracting the time consumption of matrix inversion calculation from the total time consumption of simulation calculation of each simulation task of the current distribution mode, and taking the obtained time consumption as the new candidate time consumption.
5. An electric power system simulation optimization calculation apparatus, comprising:
the target circuit acquisition unit is used for acquiring a target circuit to be subjected to simulation calculation and a plurality of threads corresponding to the target circuit, the threads are used for the simulation calculation of the target circuit, and the target circuit comprises a plurality of control elements and a plurality of electrical elements;
a simulation task determination unit, configured to determine a plurality of simulation tasks corresponding to the target circuit and time consumption for simulation calculation of each simulation task, where the plurality of simulation tasks include simulation calculation of each control element, simulation calculation of each electrical element, and matrix inversion calculation corresponding to the simulation calculation of each electrical element;
the task allocation unit is used for allocating each simulation task to each thread for simulation calculation according to the simulation calculation time consumption and the incidence relation of each simulation task to obtain a plurality of allocation modes;
and the target distribution determining unit is used for determining a target distribution mode with the shortest total simulation calculation time in the plurality of distribution modes according to the simulation calculation time consumption of each simulation task and the electric distribution mode corresponding to each electric element or the control distribution mode corresponding to each control element in each distribution mode, and distributing each simulation task to each thread for simulation calculation according to the target distribution mode.
6. The apparatus of claim 5, wherein the relationship between the simulation tasks comprises:
the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process, the precedence relation and the parallel relation of the simulation tasks corresponding to the control elements in the simulation process and the precedence relation of the simulation tasks corresponding to the control elements and the simulation tasks of all the electrical elements are calculated through matrix inversion;
the task allocation unit includes:
the first task allocation subunit is used for allocating the simulation tasks corresponding to the electrical elements to the threads according to the simulation calculation time consumption of the simulation tasks corresponding to the electrical elements and the parallel relation of the simulation tasks corresponding to the electrical elements in the simulation process;
the second task allocation subunit is used for allocating the simulation tasks corresponding to the control elements to the threads according to the simulation calculation time consumption of the simulation tasks corresponding to the control elements and the precedence and parallel relations of the simulation tasks corresponding to the control elements in the simulation process;
and the third task allocation subunit is used for allocating the simulation task corresponding to the matrix inversion calculation to any one of the threads according to the simulation calculation time consumption of the simulation task corresponding to each electrical element and the sequence relation between the simulation task corresponding to the matrix inversion calculation and the simulation tasks of all the electrical elements.
7. The apparatus according to claim 5, wherein the target allocation manner determining unit comprises:
the sorting unit is used for randomly sorting and numbering the distribution modes;
a subsequent time-consuming determining unit, configured to subtract the total simulation computation time of each simulation task of the first allocation from the time-consuming of the matrix inversion computation to obtain candidate time-consuming;
a time consumption comparing unit, configured to compare, starting from the second distribution manner according to the numbering sequence, the total electrical time consumption of the simulation task corresponding to each electrical element in each distribution manner, or the total control time consumption of the simulation task corresponding to each control element, or the total comprehensive time consumption obtained by adding the total electrical time consumption and the total control time consumption, with the candidate time consumption;
and the target distribution mode selection unit is used for comparing all the distribution modes to obtain final candidate consumed time and determining the distribution mode corresponding to the final candidate consumed time as the target distribution mode.
8. The apparatus of claim 7, wherein the time-consuming comparing unit comprises:
a first time-consuming comparing subunit, configured to eliminate the current distribution manner and other distribution manners having the same electrical distribution manner as the current distribution manner if the total electrical time-consuming is greater than or equal to the candidate time-consuming;
a second time-consuming comparing subunit, configured to eliminate the current allocation manner and other allocation manners having the same control allocation manner as the current allocation manner if the total control time-consuming is greater than or equal to the candidate time-consuming;
and a third time consumption comparison subunit, configured to, if the total integrated time consumption is smaller than the candidate time consumption, subtract the total simulation calculation time consumption of each simulation task of the current allocation manner from the time consumption of the matrix inversion calculation, and use the obtained time consumption as a new candidate time consumption.
9. A power system simulation optimization computing device comprising a memory and a processor;
the memory is used for storing programs;
the processor, executing the program, implementing the steps of the power system simulation optimization calculation method according to any one of claims 1 to 4.
10. A readable storage medium having stored thereon a computer program, characterized in that the computer program, when being executed by a processor, carries out the steps of the power system simulation optimization calculation method according to any one of claims 1 to 4.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115344389A (en) * | 2022-08-22 | 2022-11-15 | 南方电网科学研究院有限责任公司 | Communication task allocation method and device among computing nodes in electromagnetic transient simulation |
| CN116860422A (en) * | 2023-09-05 | 2023-10-10 | 北京世冠金洋科技发展有限公司 | Thread allocation method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115344389A (en) * | 2022-08-22 | 2022-11-15 | 南方电网科学研究院有限责任公司 | Communication task allocation method and device among computing nodes in electromagnetic transient simulation |
| CN115344389B (en) * | 2022-08-22 | 2024-01-23 | 南方电网科学研究院有限责任公司 | Communication task allocation method and device between computing nodes in electromagnetic transient simulation |
| CN116860422A (en) * | 2023-09-05 | 2023-10-10 | 北京世冠金洋科技发展有限公司 | Thread allocation method and device |
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