CN110705107B - Power distribution network voltage evaluation method, system, equipment and storage medium - Google Patents
Power distribution network voltage evaluation method, system, equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the application discloses a power distribution network voltage evaluation method, a system, equipment and a storage medium, comprising the following steps: acquiring electrical element parameters, electrical topological connection relation and tower position numbers from a power distribution network GIS model; generating a model file corresponding to OpenDss simulation software according to the electrical element parameters and the electrical topological connection relation in the GIS model; calling the OpenDss simulation software to calculate the power flow of the power distribution network on the model file; and comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result. According to the method, the GIS model is combined with the OpenDss simulation analysis software, universality is achieved, the problem of large voltage evaluation workload under the condition of multiple scenes can be relieved by directly acquiring parameter modeling analysis according to the GIS model, and meanwhile the problem of large investment and high professional level requirement due to adoption of commercial software is solved.
Description
Technical Field
The application relates to the technical field of voltage evaluation, in particular to a power distribution network voltage evaluation method, a system, equipment and a storage medium.
Background
Due to the development of economy, the requirements of people on power supply quality are increasingly strict, for example, when a power distribution network supplies power, the higher or lower voltage can influence user experience and normal operation of equipment, and even the equipment can be damaged, so that the user power consumption satisfaction degree is influenced. In the process of power grid construction, focus and investment funds are mainly placed in economically developed areas, and the focus is insufficient in the economically underdeveloped areas, especially in remote areas such as rural power grids, so that a plurality of problems exist in power grid construction in the areas, for example: the power supply radius is long, the line diameter is small, the line load rate is high, the compensation equipment is insufficient, the number of branch lines is large, the load distribution along the line is unbalanced, and the terminal voltage and the power factor of the power distribution network line are low.
Currently, no special evaluation software exists in the aspect of power distribution network voltage evaluation. Commercial simulation software such as BPA, ETAP, DIGSILENT can perform calculation analysis on certain specific scenes, but in the case of distribution network application, the modeling analysis efficiency is low under the condition of multiple scenes, particularly ETAP and DIGSILENT, the modeling is complex, and the requirement on the professional level of a user is high. In addition, the software is taken as commercial software, has high purchase cost and is difficult to popularize and use in a large range.
In addition, in recent years, the power grid company increases the transformation force of the power distribution network, the simulation model for voltage evaluation must be updated along with the transformation in the power distribution network frame updating process, the frequent change not only increases the workload, but also the model data lack of centralized and unified management, errors are easy to occur, and the evaluation result is influenced.
Disclosure of Invention
The embodiment of the application provides a power distribution network voltage evaluation method, a system, equipment and a storage medium, which solve the problems of large voltage evaluation workload and frequent distribution network model change under the condition of multiple scenes caused by frequent change of a simulation model.
In view of this, a first aspect of the present application provides a method for evaluating voltage of a power distribution network, the method comprising:
acquiring electrical element parameters, electrical topological connection relation and tower position numbers from a power distribution network GIS model;
generating a model file corresponding to OpenDss simulation software according to the electrical element parameters and the electrical topological connection relation in the GIS model;
calling the OpenDss simulation software to calculate the power flow of the power distribution network on the model file;
and comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
Preferably, after the electrical element parameters, the electrical topological connection relation and the tower position number are obtained from the power distribution network GIS model, the method further comprises the steps of:
and checking whether the line span meets the design standard according to the tower position number and the design standard, and if not, correcting the electrical element parameters of the GIS model.
Preferably, the generating the model file corresponding to the simulation software according to the electrical element parameters and the electrical topology connection relation in the GIS model specifically includes:
and generating a model file corresponding to simulation software according to the electrical element parameters and the electrical topology connection relation in the corrected GIS model.
Preferably, after the electrical element parameters, the electrical topological connection relation and the tower position number are obtained from the power distribution network GIS model, the method further comprises the steps of:
and distributing load ratios to each distribution transformer according to the power supply modes of the distribution transformers in the electrical element parameters, and setting power factors.
Preferably, the comparing the power flow calculation result with the set allowable normal operation value of the power distribution network to obtain a power distribution network voltage evaluation result specifically includes:
if the difference between the power flow calculation result and the set normal operation value allowed by the power distribution network is within a preset error range, the power distribution network voltage evaluation model is considered to be built reasonably, and a voltage evaluation report is generated.
A second aspect of the present application provides a power distribution network voltage evaluation system, the system comprising:
the parameter acquisition module is used for acquiring electrical element parameters and electrical topology connection relations and tower position numbers from the power distribution network GIS model;
the model file generation module is used for generating a model file corresponding to OpenDss simulation software according to the electrical element parameters and the electrical topology connection relation in the GIS model;
the power flow calculation module is used for calling the OpenDss simulation software to calculate the power flow of the power distribution network on the model file;
and the evaluation module is used for comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
Preferably, the system further comprises a parameter correction module: and the device is used for checking whether the line span meets the design standard according to the tower position number and the design standard, and if not, correcting the electrical element parameters of the GIS model.
Preferably, the system further comprises a parameter setting module for distributing load factors to each distribution transformer according to the distribution transformer power supply modes in the electrical element parameters and setting power factors.
A third aspect of the present application provides a power distribution network voltage evaluation apparatus, the apparatus comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the steps of the power distribution network voltage evaluation method according to the first aspect according to the instructions in the program code.
A fourth aspect of the present application provides a computer readable storage medium for storing program code for performing the method of the first aspect described above.
From the above technical scheme, the application has the following advantages: the application provides a power distribution network voltage evaluation method, which comprises the steps of obtaining electrical element parameters and electrical topology connection relation and tower position numbers from a power distribution network GIS model; generating a model file corresponding to OpenDss simulation software according to the electrical element parameters and the electrical topological connection relation in the GIS model; calling OpenDss simulation software to calculate power flow of the power distribution network on the model file; and comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
According to the method, the GIS model is combined with the OpenDss simulation analysis software, universality is achieved, the problem of large voltage evaluation workload under the condition of multiple scenes can be relieved by directly acquiring parameter modeling analysis according to the GIS model, and meanwhile the problem of large investment and high professional level requirement due to adoption of commercial software is solved.
Drawings
FIG. 1 is a flow chart of a method in one embodiment of a method for evaluating voltage of a power distribution network of the present application;
FIG. 2 is a flow chart of another method in one embodiment of a method of evaluating voltage of a power distribution network of the present application;
FIG. 3 is a system block diagram of one embodiment of a power distribution network voltage evaluation system of the present application.
Detailed Description
According to the power distribution network voltage evaluation method, the GIS model is combined with the OpenDss simulation analysis software, so that universality is achieved, the problem of large voltage evaluation workload under the condition of multiple scenes can be relieved by directly acquiring parameter modeling analysis according to the GIS model, and meanwhile, the problems of large investment and high professional level requirement due to adoption of commercial software are solved.
In order to make the present application solution better understood by those skilled in the art, the following description will clearly and completely describe the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
For ease of understanding, referring to fig. 1, fig. 1 is a flowchart of a method in an embodiment of a method for evaluating voltage of a power distribution network according to the present application, as shown in fig. 1, where fig. 1 includes:
101. and acquiring electrical element parameters, electrical topological connection relation and tower position numbers from the GIS model of the power distribution network.
The method is characterized in that the svg file and the cim file in the GIS model are read to obtain the parameter information of the electric element and the electric topology connection relation and the tower position number in the file. The svg file is a scalable vector picture, has the advantages of accelerating downloading and browsing speed, easily obtaining wider technical support, facilitating graphic positioning and searching, good reusability, accurate color description and the like, and can expand graphic interoperability of power system software and enable graphic data among different systems to be conveniently exchanged. The cim file is an IEC 61970 standard power system common information model file that represents all the main objects of the power enterprise contained in the EMS information model, and that facilitates the integration of different vendors independently developed EMS applications, multiple independently developed complete EMS systems or EMS systems with other systems involving different aspects of power system operation, i.e. enabling access to common data and exchange of information independent of the internal representation of the information.
In addition, the electrical component parameter information of the GIS model of the power distribution network comprises: node name, rated voltage of node, line model, line length, distribution transformer model, distribution transformer rated capacity, distribution transformer rated voltage, distribution transformer power mode (private/public). And according to the tower numbers at the head end and the tail end of the line, the topological connection relationship between the line and the towers and between the line and the equipment can be known.
102. And generating a model file corresponding to the OpenDss simulation software according to the electrical element parameters and the electrical topological connection relation in the GIS model.
In order to combine the GIS model with the OpenDss simulation analysis software, the electrical element parameters and the electrical topology connection relation acquired in the GIS are required to be converted into a model file which can be read by the OpenDss, so that the problem of high voltage evaluation workload under the condition of multiple scenes is solved.
103. And calling OpenDss simulation software to calculate the power flow of the power distribution network on the model file.
The calculation result of the power flow calculation includes the voltage of each node, the branch current, the power of each node, the power factor, the network loss, and the like.
104. And comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
After the power flow calculation is completed, comparing the calculation result with a set normal operation value allowed by the power distribution network, and if the error between the power flow result and the actual operation value is within a certain range, indicating that the model is reasonably built. After the rationality of the model is determined, evaluating the voltage of the power distribution network according to the comparison value of the node voltage; according to national standard 'power quality power supply voltage deviation', taking 10kV three-phase power supply as an example, the normal operation voltage range is 9.3-10.7kV, the voltage exceeding the range is unqualified voltage, and the node voltage in the tide result is compared with the normal operation voltage limit value so as to evaluate whether the node voltage in the tide result is qualified.
The power distribution network voltage evaluation method combines the GIS model with the OpenDss simulation analysis software, has universality, directly obtains parameter modeling analysis according to the GIS model, can alleviate the problem of large voltage evaluation workload under the condition of multiple scenes, and simultaneously solves the problems of large investment and high professional level requirement due to adoption of commercial software.
The foregoing is an embodiment of the present application, and for a more detailed understanding of the present application, a more specific embodiment of the present application is further provided, referring to fig. 2, and fig. 2 is another flowchart of an embodiment of a method for evaluating voltage of a power distribution network of the present application, as shown in fig. 2, specifically:
201. and acquiring electrical element parameters, electrical topological connection relation and tower position numbers from the GIS model of the power distribution network.
The method is characterized in that the svg file and the cim file in the GIS model are read to obtain the parameter information of the electric element and the electric topology connection relation and the tower position number in the file. The svg file is a scalable vector picture, has the advantages of accelerating downloading and browsing speed, easily obtaining wider technical support, facilitating graphic positioning and searching, good reusability, accurate color description and the like, and can expand graphic interoperability of power system software and enable graphic data among different systems to be conveniently exchanged. The cim file is an IEC 61970 standard power system common information model file that represents all the main objects of the power enterprise contained in the EMS information model, and that facilitates the integration of different vendors independently developed EMS applications, multiple independently developed complete EMS systems or EMS systems with other systems involving different aspects of power system operation, i.e. enabling access to common data and exchange of information independent of the internal representation of the information.
In addition, the electrical component parameter information of the GIS model of the power distribution network comprises: node name, rated voltage of node, line model, line length, distribution transformer model, distribution transformer rated capacity, distribution transformer rated voltage, distribution transformer power mode (private/public). And according to the tower numbers at the head end and the tail end of the line, the topological connection relationship between the line and the towers and between the line and the equipment can be known.
202. And checking whether the line span meets the design standard according to the tower position number and the design standard, and if not, correcting the electrical element parameters of the GIS model.
After the GIS model is read to obtain the position number and the line length information of the tower, the line length range corresponding to the position number of the tower is determined by referring to the industry standard, and the voltage evaluation accuracy can be effectively improved by checking whether the line length in the GIS model accords with the actual line length and carrying out error correction on the line length of the GIS model.
203. And distributing load ratios to each distribution transformer according to the power supply modes of the distribution transformers in the parameters of the electrical elements, and setting power factors.
It should be noted that, according to the different power supply modes (including private transformer and public transformer) of the distribution transformers in the electrical element parameters, load rates are allocated to each distribution transformer, and power factors are set, and under the condition of having load rate history information, history data can be adopted as the load rate of the corresponding private transformer/public transformer; in the case of no load rate history information, empirical data values may be used as the load rate of the corresponding private/public transformer, such as: the special change can be 0.8-1 at peak time and 0.05-0.3 at low peak time according to season time and the like; the public variable load rate can be 0.4-0.8.
204. And generating a model file corresponding to the OpenDss simulation software according to the electrical element parameters and the electrical topological connection relation in the corrected GIS model.
In order to combine the GIS model with the OpenDss simulation analysis software, the electrical element parameters and the electrical topology connection relation acquired in the GIS are required to be converted into a model file which can be read by the OpenDss, so that the problem of high voltage evaluation workload under the condition of multiple scenes is solved.
205. And calling OpenDss simulation software to calculate the power flow of the power distribution network on the model file.
The calculation result of the power flow calculation includes the voltage of each node, the branch current, the power of each node, the power factor, the network loss, and the like.
206. And comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
After the power flow calculation is completed, comparing the calculation result with a set normal operation value allowed by the power distribution network, and if the error between the power flow result and the actual operation value is within a certain range, indicating that the model is reasonably built. After the rationality of the model is determined, evaluating the voltage of the power distribution network according to the comparison value of the node voltage; according to national standard 'power quality power supply voltage deviation', taking 10kV three-phase power supply as an example, the normal operation voltage range is 9.3-10.7kV, the voltage exceeding the range is unqualified voltage, and the node voltage in the tide result is compared with the normal operation voltage limit value so as to evaluate whether the node voltage in the tide result is qualified.
The embodiment of the application provides a power distribution network voltage evaluation method, which comprises the steps of obtaining a pole and tower position number and line length information by reading a GIS model, determining a line length range corresponding to the pole and tower position number by referring to an industry standard, checking whether the line length in the GIS model accords with the actual state, and carrying out error correction on the line length of the GIS model, so that the voltage evaluation accuracy can be effectively improved. In addition, the open source, extensible and comprehensive model advantages of the OpenDss software are utilized, GIS model parameters are directly read for modeling, and the method is widely applicable to simulation calculation of power distribution networks of 10kV and below. When the voltage evaluation is carried out on the distribution network of various scenes, the workload can be reduced, and the more scenes needing modeling simulation calculation, the more effective the improvement of the working efficiency. Meanwhile, the problems of large investment and high professional level requirement caused by adoption of commercial software can be solved.
The foregoing is an embodiment of a method for evaluating a voltage of a power distribution network, and the present application further provides a product embodiment of a power distribution network voltage evaluation system, as shown in fig. 3 below, including:
the parameter obtaining module 301 is configured to obtain an electrical element parameter and an electrical topology connection relationship, and a tower position number from a power distribution network GIS model.
The model file generating module 302 is configured to generate a model file corresponding to the OpenDss simulation software according to the electrical element parameters and the electrical topology connection relationship in the GIS model.
And the power flow calculation module 303 is used for calling the OpenDss simulation software to perform power flow calculation of the power distribution network on the model file.
And the evaluation module 304 is used for comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
The embodiment designs the power distribution network voltage evaluation method, which combines the GIS model with the OpenDss simulation analysis software, has universality, directly obtains parameter modeling analysis according to the GIS model, can alleviate the problem of large voltage evaluation workload under the condition of multiple scenes, and simultaneously solves the problems of large investment and high professional level requirement due to adoption of commercial software.
The present application also provides another product embodiment of a power distribution network voltage evaluation system, the embodiment including:
and the parameter acquisition module is used for acquiring the electrical element parameters and the electrical topology connection relation and the tower position number from the power distribution network GIS model.
Parameter correction module: and the device is used for checking whether the line span meets the design standard according to the tower position number and the design standard, and if not, correcting the electrical element parameters of the GIS model.
And the parameter setting module is used for distributing load ratios to all the distribution transformers according to the power supply modes of the distribution transformers in the parameters of the electrical elements and setting power factors.
The model file generation module is used for generating a model file corresponding to the OpenDss simulation software according to the electrical element parameters and the electrical topology connection relation in the corrected GIS model.
And the power flow calculation module is used for calling OpenDss simulation software to calculate the power flow of the power distribution network on the model file.
And the evaluation module is used for comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
According to the method, the device and the system, the position number of the pole and the length information of the pole are obtained by reading the GIS model, the length range of the line corresponding to the position number of the pole and the tower is determined by referring to the industry standard, whether the length of the line in the GIS model accords with the actual value is checked, error correction is carried out on the length of the line of the GIS model, and the voltage evaluation accuracy can be effectively improved. In addition, the open source, extensible and comprehensive model advantages of the OpenDss software are utilized, GIS model parameters are directly read for modeling, and the method is widely applicable to simulation calculation of power distribution networks of 10kV and below. When the voltage evaluation is carried out on the distribution network of various scenes, the workload can be reduced, and the more scenes needing modeling simulation calculation, the more effective the improvement of the working efficiency. Meanwhile, the problems of large investment and high professional level requirement caused by adoption of commercial software can be solved.
The embodiment of the application also provides power distribution network voltage evaluation equipment, which comprises a processor and a memory: wherein the memory is used for storing the program code and transmitting the program code to the processor; the processor is used for executing the power distribution network voltage evaluation method according to the instructions in the program codes.
The embodiments of the present application further provide a computer readable storage medium for storing program code for executing any one of the methods for evaluating voltage of a power distribution network according to the foregoing embodiments.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in this application, "at least one" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: u disk, mobile hard disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (7)
1. A method for evaluating voltage of a power distribution network, comprising:
acquiring electrical element parameters, electrical topological connection relation and tower position numbers from a power distribution network GIS model;
generating a model file corresponding to OpenDss simulation software according to the electrical element parameters and the electrical topological connection relation in the GIS model;
calling the OpenDss simulation software to calculate the power flow of the power distribution network on the model file;
comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result;
the method further comprises the following steps of:
checking whether the line span meets the design standard according to the tower position number and the design standard, and if not, correcting the electrical element parameters of the GIS model;
the generating the model file corresponding to the OpenDss simulation software according to the electrical element parameters and the electrical topology connection relation in the GIS model specifically comprises the following steps:
and generating a model file corresponding to the OpenDss simulation software according to the electrical element parameters and the electrical topology connection relation in the corrected GIS model.
2. The method for evaluating voltage of a power distribution network according to claim 1, further comprising, after obtaining the electrical component parameters and the electrical topology connection relationship from the power distribution network GIS model, and the tower position number:
and distributing load ratios to each distribution transformer according to the power supply modes of the distribution transformers in the electrical element parameters, and setting power factors.
3. The power distribution network voltage evaluation method according to claim 1, wherein the comparing the power flow calculation result with the set allowable normal operation value of the power distribution network to obtain the power distribution network voltage evaluation result specifically comprises:
if the difference between the power flow calculation result and the set normal operation value allowed by the power distribution network is within a preset error range, the power distribution network voltage evaluation model is considered to be built reasonably, and a voltage evaluation report is generated.
4. A power distribution network voltage evaluation system, comprising:
the parameter acquisition module is used for acquiring electrical element parameters and electrical topology connection relations and tower position numbers from the power distribution network GIS model;
the model file generation module is used for generating a model file corresponding to OpenDss simulation software according to the electrical element parameters and the electrical topology connection relation in the GIS model;
the power flow calculation module is used for calling the OpenDss simulation software to calculate the power flow of the power distribution network on the model file;
the evaluation module is used for comparing the power flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result;
parameter correction module: the method comprises the steps of checking whether the line span meets the design standard according to the tower position number and the design standard, and if not, correcting the electrical element parameters of the GIS model;
the model file generation module is specifically configured to generate a model file corresponding to OpenDss simulation software according to the electrical element parameters and the electrical topology connection relationship in the corrected GIS model.
5. The power distribution network voltage evaluation system of claim 4, further comprising:
and the parameter setting module is used for distributing load factors to all the distribution transformers according to the power supply modes of the distribution transformers in the electrical element parameters and setting power factors.
6. A power distribution network voltage evaluation device, the device comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to perform the power distribution network voltage assessment method of any one of claims 1-3 according to instructions in the program code.
7. A computer readable storage medium for storing program code for performing the power distribution network voltage assessment method according to any one of claims 1-3.
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| CN112818568A (en) * | 2021-03-03 | 2021-05-18 | 广东电网有限责任公司 | Method, device, equipment and storage medium for determining topological relation of low-voltage transformer area |
| CN112952821B (en) * | 2021-03-24 | 2022-09-27 | 国网北京市电力公司 | Power distribution network stability evaluation system and method, terminal device and readable storage medium |
| CN113076618B (en) * | 2021-05-17 | 2023-02-24 | 广东电网有限责任公司 | Power distribution network single line diagram correction method, system, terminal equipment and storage medium |
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| US20150286759A1 (en) * | 2012-10-12 | 2015-10-08 | Technische Universitaet Dortmund | Computer implemented method for hybrid simulation of power distribution network and associated communication network for real time applications |
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