CN110705107A - 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 method, a system, equipment and a storage medium for evaluating the voltage of a power distribution network, wherein the method comprises the following steps: acquiring electrical element parameters, electrical topological connection relations and pole and tower position numbers from a GIS (geographic information System) model of the power distribution network; generating a model file corresponding to OpenDss simulation software according to the electrical element parameters in the GIS model and the electrical topology connection relation; calling the OpenDss simulation software to perform power distribution network load flow calculation on the model file; and comparing the load 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 application combines a GIS model and OpenDss simulation analysis software, has universality, directly obtains parameter modeling analysis according to the GIS model, can relieve the problem of large voltage evaluation workload under the multi-scene condition, and simultaneously solves the problems of large investment and high professional level requirement due to the adoption of commercial software.
Description
Technical Field
The present application relates to the field of voltage evaluation technologies, and in particular, to a method, a system, a device, and a storage medium for evaluating a voltage of a power distribution network.
Background
Due to economic development, the requirements of people on power supply quality are increasingly strict, for example, when power is supplied to a power distribution network, higher or lower voltage can affect user experience and normal operation of equipment, and even the equipment can be damaged, so that the power utilization satisfaction of users is affected. In the process of building the power grid, the emphasis and investment funds are mainly placed in economically developed areas, and the emphasis degree is insufficient for the economically underdeveloped areas, especially remote areas such as rural power grids, so that the power grid building in the areas has a plurality of problems, such as: the power supply radius is long, the wire diameter is small, the load rate of a line is high, compensation equipment is insufficient, branch lines are numerous, and load distribution along the line is unbalanced, so that the tail end voltage and the power factor of a power distribution network line are low.
At present, no special evaluation software exists in the aspect of power distribution network voltage evaluation. Commercial simulation software such as BPA, ETAP, DIGSILENT and the like can perform calculation analysis on certain specific scenes, but in distribution network application, the modeling analysis efficiency is low under the multi-scene condition, particularly ETAP and DIGSILENT, and both are tedious in modeling and have high requirements on the professional level of users. In addition, the software is taken as commercial software, the purchase cost is high, and the wide-range popularization and use are difficult.
In addition, in recent years, the power distribution network transformation strength of a power distribution network company is increased, a simulation model for voltage evaluation must be updated along with the power distribution network structure in the updating process, the workload is increased due to frequent changes, model data is lack of centralized and unified management, errors are prone to occurring, and evaluation results are affected.
Disclosure of Invention
The embodiment of the application provides a power distribution network voltage evaluation method, a power distribution network voltage evaluation system, power distribution network voltage evaluation equipment and a storage medium, and solves the problems of large voltage evaluation workload and frequent distribution network model change under the multi-scene condition caused by frequent simulation model change.
In view of the above, a first aspect of the present application provides a method for estimating a voltage of a power distribution network, the method including:
acquiring electrical element parameters, electrical topological connection relations and pole and tower position numbers from a GIS (geographic information System) model of the power distribution network;
generating a model file corresponding to OpenDss simulation software according to the electrical element parameters in the GIS model and the electrical topology connection relation;
calling the OpenDss simulation software to perform power distribution network load flow calculation on the model file;
and comparing the load 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 obtaining of the electrical element parameters, the electrical topology connection relationship, and the pole and tower position number from the distribution network GIS model, the method further includes:
and checking whether the line span meets the design standard or not according to the position number of the tower and the design standard, and if not, correcting the electrical element parameters of the GIS model.
Preferably, the generating of the model file corresponding to the simulation software according to the electrical element parameters and the electrical topology connection relationship in the GIS model specifically includes:
and generating a model file corresponding to the simulation software according to the electrical element parameters and the electrical topology connection relation in the corrected GIS model.
Preferably, after the obtaining of the electrical element parameters, the electrical topology connection relationship, and the pole and tower position number from the distribution network GIS model, the method further includes:
and distributing load rate for each distribution transformer according to the power supply mode of the distribution transformer in the electrical element parameters, and setting a power factor.
Preferably, the comparing the power flow calculation result with the set normal operation value allowed by the power distribution network to obtain the power distribution network voltage evaluation result specifically includes:
and if the difference between the load flow calculation result and the set allowed normal operation value of the power distribution network is within a preset error range, establishing a power distribution network voltage evaluation model reasonably, and generating a voltage evaluation report.
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 the parameters of the electrical elements, the electrical topological connection relation and the position numbers of the towers from the GIS model of the power distribution network;
the model file generation module is used for generating a model file corresponding to OpenDss simulation software according to the electrical element parameters in the GIS model and the electrical topology connection relation;
the power flow calculation module is used for calling the OpenDss simulation software to perform power distribution network power flow calculation on the model file;
and the evaluation module is used for comparing the load 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 modification module: and the electric element parameter correction module is used for checking whether the line span meets the design standard or not according to the position number of the tower and the design standard, and correcting the electric element parameter of the GIS model if the line span does not meet the design standard.
Preferably, the system further comprises a parameter setting module, configured to allocate a load factor to each distribution transformer according to a distribution transformer power supply mode in the electrical component parameters, and set a power factor.
A third aspect of the 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 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.
According to the technical scheme, the method has the following advantages: the application provides a power distribution network voltage evaluation method, which comprises the steps of obtaining parameters of electrical elements, electrical topology connection relations and pole and tower position numbers from a GIS (geographic information System) model of a power distribution network; generating a model file corresponding to OpenDss simulation software according to the electrical element parameters in the GIS model and the electrical topology connection relation; calling OpenDss simulation software to perform power distribution network load flow calculation on the model file; and comparing the load 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 application combines the GIS model with the OpenDss simulation analysis software, has universality, directly obtains parameter modeling analysis according to the GIS model, can relieve the problem of large voltage evaluation workload under the multi-scene condition, and simultaneously solves the problems of large investment and high professional level requirement due to the adoption of commercial software.
Drawings
FIG. 1 is a flow chart of a method in an embodiment of a method for power distribution network voltage evaluation according to the present application;
FIG. 2 is another method flow diagram of an embodiment of a method for power distribution network voltage evaluation according to the present application;
fig. 3 is a system block diagram of an embodiment of a system for evaluating voltage of a power distribution network according to the present application.
Detailed Description
According to the power distribution network voltage evaluation method, the GIS model and the OpenDss simulation analysis software are combined, universality is achieved, parameter modeling analysis is directly obtained according to the GIS model, the problem of large voltage evaluation workload under the multi-scene condition can be solved, and the problems of large investment and high professional level requirement due to the adoption of commercial software are solved.
In order to make the technical solutions of the present application better understood, 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.
For convenience of understanding, please refer to fig. 1, fig. 1 is a flowchart illustrating a method of an embodiment of a method for estimating a voltage of a power distribution network according to the present application, as shown in fig. 1, where fig. 1 includes:
101. and acquiring the parameters of the electrical elements, the electrical topological connection relation and the position numbers of the towers from the GIS model of the power distribution network.
It should be noted that the parameter information of the electrical element, the electrical topology connection relationship, and the pole and tower position number in the file are obtained by reading the svg file and the cim file in the GIS model. The svg file is a scalable vector picture, and has the advantages of accelerating downloading and browsing speed, easily obtaining wider technical support, facilitating graphic positioning and retrieval, good reusability, accurate color description and the like, so that the graphic interoperation capability of power system software can be expanded, and graphic data among different systems can be conveniently exchanged. cim is a common information model file of IEC 61970 standard electric power system, which represents all main objects of electric power enterprises contained in an EMS information model, and conveniently realizes the integration of EMS applications independently developed by different manufacturers, a plurality of complete EMS systems independently developed or EMS systems with other systems related to different aspects of electric power system operation, i.e. public data can be accessed and information can be exchanged without depending on the internal representation of information.
In addition, the distribution network GIS model electrical element parameter information comprises: node name, node rated voltage, line model, line length, distribution transformer model, distribution transformer rated capacity, distribution transformer rated voltage, and distribution transformer power supply mode (special/public transformer). And according to the serial numbers of the towers at the head end and the towers at the tail end of the line, the topological connection relation among the line, the towers 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 topology connection relation in the GIS model.
It should be noted that, in order to combine the GIS model with the OpenDss simulation analysis software, the electrical element parameters and the electrical topology connection relationship acquired in the GIS need to be converted into a model file that can be read by OpenDss, so that the problem of large workload of voltage estimation under the multi-scenario condition is solved.
103. And calling OpenDss simulation software to perform power distribution network load flow calculation on the model file.
Note that the calculation result of the power flow calculation includes each node voltage, branch current, each node power, power factor, network loss, and the like.
104. And comparing the load flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
It should be noted that, after the load flow calculation is completed, the calculation result is compared with the set normal operation value allowed by the power distribution network, and if the error between the load flow result and the actual operation value is within a certain range, the model is reasonably established. 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 the national standard 'power quality supply voltage deviation', taking 10kV three-phase power supply as an example, the range of the normal operation voltage value is 9.3-10.7kV, the voltage exceeding the range is unqualified voltage, and the node voltage in the trend result is compared with the normal operation voltage limit value so as to evaluate whether the node voltage in the trend result is qualified.
The power distribution network voltage evaluation method has universality by combining a GIS model and OpenDss simulation analysis software, can relieve the problem of large voltage evaluation workload under the multi-scene condition by directly obtaining parameter modeling analysis according to the GIS model, and solves the problems of large investment and high professional level requirement due to the adoption of commercial software.
In the above, an embodiment of the present application is described, and for a more detailed understanding of the present application, a more specific embodiment is provided, please refer to fig. 2, fig. 2 is another flowchart of a method of an embodiment of a method for estimating a voltage of a power distribution network according to the present application, and as shown in fig. 2, the method specifically includes:
201. and acquiring the parameters of the electrical elements, the electrical topological connection relation and the position numbers of the towers from the GIS model of the power distribution network.
It should be noted that the parameter information of the electrical element, the electrical topology connection relationship, and the pole and tower position number in the file are obtained by reading the svg file and the cim file in the GIS model. The svg file is a scalable vector picture, and has the advantages of accelerating downloading and browsing speed, easily obtaining wider technical support, facilitating graphic positioning and retrieval, good reusability, accurate color description and the like, so that the graphic interoperation capability of power system software can be expanded, and graphic data among different systems can be conveniently exchanged. cim is a common information model file of IEC 61970 standard electric power system, which represents all main objects of electric power enterprises contained in an EMS information model, and conveniently realizes the integration of EMS applications independently developed by different manufacturers, a plurality of complete EMS systems independently developed or EMS systems with other systems related to different aspects of electric power system operation, i.e. public data can be accessed and information can be exchanged without depending on the internal representation of information.
In addition, the distribution network GIS model electrical element parameter information comprises: node name, node rated voltage, line model, line length, distribution transformer model, distribution transformer rated capacity, distribution transformer rated voltage, and distribution transformer power supply mode (special/public transformer). And according to the serial numbers of the towers at the head end and the towers at the tail end of the line, the topological connection relation among the line, the towers and the equipment can be known.
202. And checking whether the line span meets the design standard or not according to the position number of the tower and the design standard, and if not, correcting the electrical element parameters of the GIS model.
It should be noted that, after the position number of the tower and the line length information are obtained by reading the GIS model, 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 is in accordance with the reality or not and performing error correction on the line length of the GIS model.
203. And distributing load rate for each distribution transformer according to the power supply mode of the distribution transformer in the parameters of the electrical elements, and setting a power factor.
It should be noted that, according to the different power supply modes (including the specific transformer and the public transformer) of the distribution transformers in the parameters of the electrical elements, the load rates are distributed to the distribution transformers, and the power factors are set, and under the condition of historical information of the load rates, historical data can be used as the load rates of the corresponding specific transformers/public transformers; in the case of no load rate history information, empirical data values may be used as the load rate of the corresponding specific/common variable, such as: the special change can be 0.8-1 at the peak and 0.05-0.3 at the low peak according to the season time and the like; the common variable load rate may be 0.4-0.8.
204. And generating a model file corresponding to the OpenDss simulation software according to the corrected electrical element parameters and the electrical topology connection relation in the GIS model.
It should be noted that, in order to combine the GIS model with the OpenDss simulation analysis software, the electrical element parameters and the electrical topology connection relationship acquired in the GIS need to be converted into a model file that can be read by OpenDss, so that the problem of large workload of voltage estimation under the multi-scenario condition is solved.
205. And calling OpenDss simulation software to perform power distribution network load flow calculation on the model file.
Note that the calculation result of the power flow calculation includes each node voltage, branch current, each node power, power factor, network loss, and the like.
206. And comparing the load flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
It should be noted that, after the load flow calculation is completed, the calculation result is compared with the set normal operation value allowed by the power distribution network, and if the error between the load flow result and the actual operation value is within a certain range, the model is reasonably established. 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 the national standard 'power quality supply voltage deviation', taking 10kV three-phase power supply as an example, the range of the normal operation voltage value is 9.3-10.7kV, the voltage exceeding the range is unqualified voltage, and the node voltage in the trend result is compared with the normal operation voltage limit value so as to evaluate whether the node voltage in the trend result is qualified.
The embodiment of the application provides a power distribution network voltage evaluation method, which includes the steps of obtaining a pole tower position number and line length information by reading a GIS model, determining a line length range corresponding to the pole tower position number by referring to an industrial standard, checking whether the line length in the GIS model is in accordance with reality or not, performing error correction on the line length of the GIS model, and effectively improving voltage evaluation accuracy. In addition, by utilizing the advantages of open source, expandability and comprehensive model of OpenDss software, the method directly reads the GIS model parameters for modeling, and is generally suitable for simulation calculation of 10kV or below power distribution networks. When the voltage of the distribution network with various scenes is evaluated, 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 due to the adoption of commercial software can be solved.
The above is an embodiment of the power distribution network voltage evaluation method according to the present application, 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 parameters of the electrical element, an electrical topology connection relationship, and a pole and tower position number from the distribution network GIS model.
And a model file generation module 302, 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 load flow calculation module 303 is configured to invoke OpenDss simulation software to perform power distribution network load flow calculation on the model file.
And the evaluation module 304 is configured to compare 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 power distribution network voltage evaluation method is designed by the embodiment, the GIS model and the OpenDss simulation analysis software are combined, universality is achieved, parameter modeling analysis is directly obtained according to the GIS model, the problem of large voltage evaluation workload under the multi-scene condition can be solved, and the problems of high investment and high professional level requirement due to the adoption of commercial software are solved.
The present application further provides another product embodiment of a system for estimating a voltage of a power distribution network, the product embodiment comprising:
and the parameter acquisition module is used for acquiring the parameters of the electrical elements, the electrical topology connection relation and the pole and tower position number from the GIS model of the power distribution network.
A parameter correction module: and the electric element parameter correction module is used for checking whether the line span meets the design standard or not according to the position number of the tower and the design standard, and correcting the electric element parameter of the GIS model if the line span does not meet the design standard.
And the parameter setting module is used for distributing the load rate to each distribution transformer according to the power supply mode of the distribution transformer in the parameters of the electrical elements and setting a power factor.
And the model file generation module is used for generating a model file corresponding to the OpenDss simulation software according to the corrected electrical element parameters and the electrical topology connection relation in the GIS model.
And the load flow calculation module is used for calling OpenDss simulation software to perform power distribution network load flow calculation on the model file.
And the evaluation module is used for comparing the load 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 embodiment, the position number of the tower and the line length information are obtained by reading the GIS model, the line length range corresponding to the position number of the tower is determined by referring to the industrial standard, whether the line length in the GIS model is in accordance with the reality or not is checked, the line length of the GIS model is corrected in an error mode, and the voltage evaluation accuracy can be effectively improved. In addition, by utilizing the advantages of open source, expandability and comprehensive model of OpenDss software, the method directly reads the GIS model parameters for modeling, and is generally suitable for simulation calculation of 10kV or below power distribution networks. When the voltage of the distribution network with various scenes is evaluated, 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 due to the adoption of commercial software can be solved.
The embodiment of the application also provides a distribution network voltage evaluation device, which comprises a processor and a memory, wherein the processor comprises: the memory is used for storing the program codes and transmitting the program codes to the processor; the processor is used for executing the power distribution network voltage evaluation method according to instructions in the program codes.
The embodiment of the present application further provides a computer-readable storage medium for storing a program code, where the program code is used to execute any one implementation of the method for estimating the voltage of the power distribution network described in the foregoing embodiments.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. 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 the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. 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 the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A method for evaluating the voltage of a power distribution network is characterized by comprising the following steps:
acquiring electrical element parameters, electrical topological connection relations and pole and tower position numbers from a GIS (geographic information System) model of the power distribution network;
generating a model file corresponding to OpenDss simulation software according to the electrical element parameters in the GIS model and the electrical topology connection relation;
calling the OpenDss simulation software to perform power distribution network load flow calculation on the model file;
and comparing the load flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
2. The method for evaluating the voltage of the power distribution network according to claim 1, wherein after the obtaining of the electrical element parameters, the electrical topology connection relationship and the pole and tower position number from the GIS model of the power distribution network, the method further comprises the following steps:
and checking whether the line span meets the design standard or not according to the position number of the tower and the design standard, and if not, correcting the electrical element parameters of the GIS model.
3. The method for evaluating the voltage of the power distribution network according to claim 2, wherein the generating of the model file corresponding to the simulation software according to the electrical element parameters and the electrical topology connection relationship in the GIS model specifically comprises:
and generating a model file corresponding to the simulation software according to the electrical element parameters and the electrical topology connection relation in the corrected GIS model.
4. The method for evaluating the voltage of the power distribution network according to claim 1, wherein after the obtaining of the electrical element parameters, the electrical topology connection relationship and the pole and tower position number from the GIS model of the power distribution network, the method further comprises the following steps:
and distributing load rate for each distribution transformer according to the power supply mode of the distribution transformer in the electrical element parameters, and setting a power factor.
5. The method for evaluating the voltage of the power distribution network according to claim 1, wherein the power flow calculation result is compared with a set normal operation value allowed by the power distribution network, and the power distribution network voltage evaluation result is obtained by:
and if the difference between the load flow calculation result and the set allowed normal operation value of the power distribution network is within a preset error range, establishing a power distribution network voltage evaluation model reasonably, and generating a voltage evaluation report.
6. A power distribution network voltage evaluation system, comprising:
the parameter acquisition module is used for acquiring the parameters of the electrical elements, the electrical topological connection relation and the position numbers of the towers from the GIS model of the power distribution network;
the model file generation module is used for generating a model file corresponding to OpenDss simulation software according to the electrical element parameters in the GIS model and the electrical topology connection relation;
the power flow calculation module is used for calling the OpenDss simulation software to perform power distribution network power flow calculation on the model file;
and the evaluation module is used for comparing the load flow calculation result with a set normal operation value allowed by the power distribution network to obtain a power distribution network voltage evaluation result.
7. The system of claim 6, further comprising:
a parameter correction module: and the electric element parameter correction module is used for checking whether the line span meets the design standard or not according to the position number of the tower and the design standard, and correcting the electric element parameter of the GIS model if the line span does not meet the design standard.
8. The system of claim 6, further comprising:
and the parameter setting module is used for distributing the load rate to each distribution transformer according to the power supply mode of the distribution transformer in the electrical element parameters and setting a power factor.
9. 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 method of power distribution network voltage evaluation according to any one of claims 1 to 5 according to instructions in the program code.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium is used for storing program code for performing the method for power distribution network voltage evaluation according to any of claims 1-5.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111428947A (en) * | 2020-04-29 | 2020-07-17 | 广东电网有限责任公司清远供电局 | Optimization method, device and equipment for power grid planning management |
| CN112052499A (en) * | 2020-09-02 | 2020-12-08 | 浙江省交通规划设计研究院有限公司 | Lighting line pipe modeling method and device, electronic equipment and storage medium |
| 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 |
| CN112952821A (en) * | 2021-03-24 | 2021-06-11 | 国网北京市电力公司 | Power distribution network stability evaluation system and method, terminal device and readable storage medium |
| CN113076618A (en) * | 2021-05-17 | 2021-07-06 | 广东电网有限责任公司 | Power distribution network single line diagram correction method, system, terminal equipment and storage medium |
| CN113258578A (en) * | 2021-06-16 | 2021-08-13 | 北京德风新征程科技有限公司 | Power flow data generation method and device, electronic equipment and computer readable medium |
| CN114065535A (en) * | 2021-11-22 | 2022-02-18 | 国网天津市电力公司 | Load distribution and modeling method based on multi-MGP grid connection |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968525A (en) * | 2010-10-09 | 2011-02-09 | 杭州市电力局 | Fault positioning method for power distribution network by combining simulation calculation and real-time monitoring |
| CN104218588A (en) * | 2014-08-14 | 2014-12-17 | 广东电网公司电力科学研究院 | Supply voltage intelligent analysis and assistant decision-making method for power distribution networks |
| CN104573853A (en) * | 2014-12-19 | 2015-04-29 | 华南理工大学 | Systematic solution for voltage quality evaluation and optimization of low-voltage transformer area distribution networks |
| 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 |
| CN106096810A (en) * | 2016-05-26 | 2016-11-09 | 广东电网有限责任公司佛山供电局 | Method and system for planning based on power distribution network operation data Yu geographical topology information |
| CN107591804A (en) * | 2017-09-22 | 2018-01-16 | 广东电网有限责任公司电力科学研究院 | A kind of electricity quality evaluation method and apparatus based on OPENDSS |
| CN107959308A (en) * | 2018-01-10 | 2018-04-24 | 云南电网有限责任公司电力科学研究院 | Power distribution network distributed energy accesses adaptability teaching method and device |
| CN108182323A (en) * | 2017-12-25 | 2018-06-19 | 华南理工大学 | A kind of intelligent operation management method for low-voltage network |
| CN108683209A (en) * | 2018-04-09 | 2018-10-19 | 中国电力科学研究院有限公司 | A kind of grid-connected capability assessment method of distributed generation resource and device |
| CN108733919A (en) * | 2018-05-18 | 2018-11-02 | 国网山东省电力公司菏泽供电公司 | Power distribution network simulating analysis and system based on VBA and OpenDSS |
| CN110277782A (en) * | 2019-05-26 | 2019-09-24 | 国网江苏省电力有限公司泰州供电分公司 | A kind of power distribution network evaluation of power supply capability based on GIS topological analysis and application |
-
2019
- 2019-10-08 CN CN201910950093.7A patent/CN110705107B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968525A (en) * | 2010-10-09 | 2011-02-09 | 杭州市电力局 | Fault positioning method for power distribution network by combining simulation calculation and real-time monitoring |
| 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 |
| CN104218588A (en) * | 2014-08-14 | 2014-12-17 | 广东电网公司电力科学研究院 | Supply voltage intelligent analysis and assistant decision-making method for power distribution networks |
| CN104573853A (en) * | 2014-12-19 | 2015-04-29 | 华南理工大学 | Systematic solution for voltage quality evaluation and optimization of low-voltage transformer area distribution networks |
| CN106096810A (en) * | 2016-05-26 | 2016-11-09 | 广东电网有限责任公司佛山供电局 | Method and system for planning based on power distribution network operation data Yu geographical topology information |
| CN107591804A (en) * | 2017-09-22 | 2018-01-16 | 广东电网有限责任公司电力科学研究院 | A kind of electricity quality evaluation method and apparatus based on OPENDSS |
| CN108182323A (en) * | 2017-12-25 | 2018-06-19 | 华南理工大学 | A kind of intelligent operation management method for low-voltage network |
| CN107959308A (en) * | 2018-01-10 | 2018-04-24 | 云南电网有限责任公司电力科学研究院 | Power distribution network distributed energy accesses adaptability teaching method and device |
| CN108683209A (en) * | 2018-04-09 | 2018-10-19 | 中国电力科学研究院有限公司 | A kind of grid-connected capability assessment method of distributed generation resource and device |
| CN108733919A (en) * | 2018-05-18 | 2018-11-02 | 国网山东省电力公司菏泽供电公司 | Power distribution network simulating analysis and system based on VBA and OpenDSS |
| CN110277782A (en) * | 2019-05-26 | 2019-09-24 | 国网江苏省电力有限公司泰州供电分公司 | A kind of power distribution network evaluation of power supply capability based on GIS topological analysis and application |
Non-Patent Citations (4)
| Title |
|---|
| P. QUESADA等: "Distribution network model builder for OpenDSS in open source GIS software" * |
| R. GONZÁLEZ等: "OpenDSS-based distribution network analyzer in open source GIS environment" * |
| 吴文传等: "配电网高级应用软件及其实用化关键技术" * |
| 李鹏等: "基于OpenDSS的智能配电网仿真与模拟平台及其应用" * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111428947A (en) * | 2020-04-29 | 2020-07-17 | 广东电网有限责任公司清远供电局 | Optimization method, device and equipment for power grid planning management |
| CN112052499A (en) * | 2020-09-02 | 2020-12-08 | 浙江省交通规划设计研究院有限公司 | Lighting line pipe modeling method and device, electronic equipment and storage medium |
| CN112052499B (en) * | 2020-09-02 | 2024-03-12 | 浙江数智交院科技股份有限公司 | Modeling method and device for illumination tube, electronic equipment and storage medium |
| 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 |
| CN112952821A (en) * | 2021-03-24 | 2021-06-11 | 国网北京市电力公司 | Power distribution network stability evaluation system and method, terminal device and readable storage medium |
| CN113076618A (en) * | 2021-05-17 | 2021-07-06 | 广东电网有限责任公司 | Power distribution network single line diagram correction method, system, terminal equipment and 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 |
| CN113258578A (en) * | 2021-06-16 | 2021-08-13 | 北京德风新征程科技有限公司 | Power flow data generation method and device, electronic equipment and computer readable medium |
| CN113258578B (en) * | 2021-06-16 | 2021-10-15 | 北京德风新征程科技有限公司 | Power flow data generation method and device, electronic equipment and computer readable medium |
| CN114065535A (en) * | 2021-11-22 | 2022-02-18 | 国网天津市电力公司 | Load distribution and modeling method based on multi-MGP grid connection |
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