CN111292204A - Electrical safety protection parameter checking method based on edge computing and cloud platform - Google Patents
Electrical safety protection parameter checking method based on edge computing and cloud platform Download PDFInfo
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- CN111292204A CN111292204A CN202010375172.2A CN202010375172A CN111292204A CN 111292204 A CN111292204 A CN 111292204A CN 202010375172 A CN202010375172 A CN 202010375172A CN 111292204 A CN111292204 A CN 111292204A
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Abstract
The invention discloses an electrical safety protection parameter checking method based on edge computing and a cloud platform, which belongs to the electrical field and comprises the following steps of S1: establishing a topological model of the electric circuit and importing the topological model into an edge computing controller and a cloud platform; s2: acquiring protection parameter values of the protection equipment, importing the protection parameter values into an edge computing controller and a cloud platform, and constructing a two-dimensional table containing protection equipment attributes-protection parameters; s3: based on the standards and specifications of the country, industry and customer specific scenes, constructing a two-dimensional table containing legal protection attributes-legal protection parameters according to the two-dimensional table format in the step S2; s4: checking the validity of all protection parameters by using the two-dimensional tables in the S2 and the S3; s5: checking the relevance rationality of each hierarchy of the two-dimensional table in the step S2; s6: and outputting the checking result and displaying the checking result to a user. The method has the advantage that the type selection and the coordination of the protection equipment can be checked reasonably.
Description
Technical Field
The invention relates to the field of electrical safety, in particular to an electrical safety protection parameter checking method based on edge computing and a cloud platform.
Background
Protection of a user side electric loop is generally implemented by deploying various levels of protection equipment with different models and specifications according to a configuration scheme not lower than three-level power distribution two-level protection, the protection equipment automatically identifies short circuit, overload, electric leakage and other abnormal states according to the size of electric quantity sensed by an installation position, and when the electric quantity data does not accord with set protection parameters, the protection equipment trips to cut off the power. These electrical quantities are mainly currents, leakage currents, voltages, and sometimes frequency, power, and other data.
In reality, the phenomenon of unreasonable type selection or unreasonable setting of protection parameters of the protection equipment often occurs, so that when an electric loop is short-circuited and seriously overloaded or has serious electric leakage, the protection equipment still does not trip or power off due to overlarge parameter setting, thereby causing an electric fire or a personal electric shock casualty accident; in some cases, protection override tripping occurs, which causes various problems such as an excessively large power failure range or an excessively large dead zone.
Unreasonable protection parameters are mainly reflected in two aspects: firstly, the protection parameters are unreasonable or the type selection is unreasonable, and the protection is not in effect caused by the non-conformity with the national regulations; secondly, parameters between the multi-stage protection are not matched and cannot be coordinated with each other, so that the protection action is unreasonable.
In summary, it is very urgent to provide a method for reasonably setting the electrical safety protection parameters.
Disclosure of Invention
In order to overcome the defects in the prior art, the electrical safety protection parameter checking method based on the edge computing and the cloud platform can check whether the type selection and the mutual coordination of the protection equipment are reasonable or not.
In order to achieve the purpose, the electrical safety protection parameter checking method based on the edge computing and the cloud platform is characterized by comprising the following steps of: s1: establishing a topological model of the electric circuit, and importing the topological model into the edge computing controller and the cloud platform; s2: acquiring protection parameter values of each protection device through manual import or communication, and importing an edge computing controller and a cloud platform, wherein the edge computing controller constructs a two-dimensional table containing protection device attributes-protection parameters; s3: based on the standards, specifications and other effective files of the country, industry and customer specific scenes, constructing a two-dimensional table containing legal protection attributes-legal protection parameters according to the standard of the two-dimensional table format for the electrical parameters in the step S2; s4: comparing the two-dimensional table containing the protection device attribute-protection parameter in the step S2 with the two-dimensional table containing the legal protection attribute-legal protection parameter in the step S3 one by one according to the level of the protection device, and checking the legality of all protection parameters; s5: checking the association rationality of the protection device parameters according to the logical relationship of the parent node and the child node for each level of the two-dimensional table containing the protection device attributes and the protection parameters in the step S2; s6: and outputting the checking result, and outputting and displaying the checking result to a user.
Further, in step S1, the topology model is a tree structure, the first layer of the tree structure is protection device a, the second layer of the tree structure is protection devices B1, B2, …, and Bk, k in total, the first group of the third layer is C11, C12, …, and C1m, m in total, and so on, the k group of the third layer is Ck1, Ck2, …, and Ckn in total, n in total, B1 is a "parent node" of C11, C12, …, and C1m, C11, C12, …, and C1m is a "child node" of B1, the protection device a is a "parent node" of protection devices B1, B2, …, and Bk, and the protection devices B1, B2, …, and Bk are "child nodes" of protection device a, and so on.
Further, in step S2, the two-dimensional table of "protection device attribute-protection parameter" includes the serial number of the parent node protection device in the previous level, and the serial number information of the parent node protection device in the previous level, where all the protection devices are numbered and sorted from left to right according to the top and bottom of the topology.
Further, in step S6, the edge computing controller outputs the two-dimensional table of the electrical parameter safety result according to the two-dimensional table of the "protected device attribute-protected parameter" in step S2 and the "legal protection attribute-legal protection parameter" in step S3, marks out a result abnormal value in the electrical parameter safety result, and sends the result abnormal value to the mobile phone APP or the computer of the user through the cloud platform.
Further, in step S2, when the system is not in operation, a "protected device attribute-protection parameter" two-dimensional table is generated by manually managing data, the electrical parameter data in the "protected device attribute-protection parameter" two-dimensional table is entered, and the data is imported to the edge computing controller and the cloud platform for offline analysis.
Further, in step S2, when the system runs, the electrical parameters of the protection device in the electrical circuit are obtained through communication and are imported into the edge computing controller and the cloud platform, and the two-dimensional table of "protection device attribute-protection parameter" is generated by the edge computing controller and the cloud platform for analysis.
Furthermore, when the system runs, the edge computing controller and the cloud platform can perform cyclic checking, and when the topology model changes or the protection device parameters obtained through communication are modified, the data in the two-dimensional table of the protection device attribute-protection parameter can be automatically changed, and a new checking result is output.
Has the advantages that: the method comprises the steps of generating a two-dimensional table of 'protective equipment attribute-protective parameter' by correlating an electrical circuit topology model containing protective equipment and protective parameter values of the protective equipment through an edge computing controller and a cloud platform, generating a two-dimensional table of 'legal protective attribute-legal protective parameter' with the same format as the two-dimensional table of 'protective equipment attribute-protective parameter' according to standards, specifications and other effective files of countries, industries and customer specific scenes, comparing the two tables according to equipment levels, and finding out illegal protective parameters; the edge computing controller and the cloud platform check the association rationality of the protection parameters according to the rational relation of the logic relation of parent nodes and child nodes of each protection device in the topology model in a two-dimensional table of protection device attributes and protection parameters; and finally, outputting a two-dimensional table of checking results of the electrical safety protection parameters of all the protection devices. The type selection and mutual coordination of the protection equipment are managed through the edge computing controller and the cloud platform computing, and the operation is convenient and fast.
Drawings
The present invention will be further described and illustrated with reference to the following drawings.
FIG. 1 is a topological model diagram of an electrical circuit of the present invention;
FIG. 2 is a flow chart of the steps of the present invention.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Examples
The invention provides an electrical safety protection parameter checking method based on edge computing and a cloud platform, which comprises the following steps of:
s1: and establishing a topological model of the electric loop, and importing the topological model into the edge computing controller and the cloud platform.
Specifically, a general electrical circuit is a tree structure, see fig. 1, for example, the first layer of the tree structure is protection device a, the second layer of the tree structure is protection devices B1, B2, …, and Bk, which are k in total, and the first group of the third layer is C11, C12, …, and C1m, which are m in total.
In the tree structure of the electric circuit, the protection device a of the first layer is a parent node of the protection devices B1, B2, … and Bk of the second layer, and the protection devices B1, B2, … and Bk of the second layer are child nodes of the protection device a of the first layer; similarly, the protection device B1 at the second layer is a parent node of the protection devices C11, C12, … and C1m at the third layer, the protection devices C11, C12, … and C1m at the third layer are child nodes of the protection device B1 at the second layer, and so on.
S2: the edge computing controller and the cloud platform construct a two-dimensional table containing protection device attributes-protection parameters according to the protection parameter values of the protection devices in the step S1;
when the edge calculation controller constructs a two-dimensional table of protection device attribute-protection parameter, the protection devices are numbered and sorted from left to right according to the top to bottom of the topological structure, and the electric parameters of the sorted protection devices are filled into the two-dimensional table of protection device attribute-protection parameter.
The first way to construct a two-dimensional table of "protection device attributes-protection parameters" is: the protection device arranged in the electrical circuit is, for example, an energy gateway circuit breaker is used as the protection device, a main control unit inside the energy gateway circuit breaker can acquire electrical parameters in the electrical circuit, then the communication connection is realized between the main control unit inside the energy gateway circuit breaker and an edge calculation controller, the edge calculation controller receives the electrical parameter values and constructs a two-dimensional table of the protection device attribute-protection parameter, and the edge calculation controller maps the detected electrical parameter values one by one to the two-dimensional table of the protection device attribute-protection parameter.
The above method is adopted when the system runs, the edge computing controller and the cloud platform can perform cyclic check, and when the topology model changes or the protection device parameters obtained by communication are modified, the edge computing controller can remap the changed data to the two-dimensional table of 'protection device attribute-protection parameter', so that the data in the two-dimensional table of 'protection device attribute-protection parameter' can be automatically changed.
The second way to construct the two-dimensional table of "protection device attributes-protection parameters" is: the two-dimensional table of the protection equipment attribute-protection parameter is manually constructed, then the electrical parameter value marked on the product when the protection equipment is purchased is manually input into the two-dimensional table of the protection equipment attribute-protection parameter, and then the two-dimensional table of the protection equipment attribute-protection parameter is imported into the edge computing controller.
The above manner is adopted when the system is not running, and although the edge calculation controller cannot change the data in the two-dimensional table of "protection device attribute-protection parameter" in real time as in the foregoing system running, the edge calculation controller can still perform one-time analysis on the type selection of the protection device.
It is worth noting that when the project scale is small, that is, the number of protection devices needing to be judged is small, and the number of the judged electrical parameters is small, and the edge computing controller does not need to be deployed, the cloud platform can complete the data management and check functions of the edge computing controller, that is, the cloud platform replaces the edge computing controller.
Table 1 constructed from the electrical data in step S1 is as follows:
TABLE 1
S3: based on the standards and specifications of the country, industry and customer specific scenes, establishing a two-dimensional table containing legal protection attributes-legal protection parameters according to the two-dimensional table format in the step S2;
from the above valid document, table 2 was constructed as follows:
TABLE 2
The device name defining the first layer is L1, the device name defining the second layer is L2, the device name defining the third layer is L3, and so on, the letter "L" has no practical meaning and can be replaced with any letter.
The effective documents include standards recorded in GB50052-2009 design Specification of power supply and distribution systems, JGJ59-2011 Standard for safety inspection of building construction, JGJ 46-2005 Specification of temporary electricity utilization safety at construction sites and the like.
S4: comparing the two-dimensional table containing the protection device attribute-protection parameter in the step S2 with the two-dimensional table containing the legal protection attribute-legal protection parameter in the step S3 one by one according to the located hierarchy, and checking the legality of all protection parameters.
Specifically, a partial validity check of the protection device is made with respect to the data in table 1 and table 2, which is exemplified as follows:
the edge calculation controller is based on the data in table 1,
the leakage current operating value (P1) of the protection device 4 (C11) in table 1 is extracted and expressed as: v (4) (1);
the leakage current delay value (P2) of the protection device 4 (C11) in table 1 was extracted and is represented as: v (4) (2);
the leakage current operating value (P1) of the protection device 7 (C14) in table 1 is extracted and expressed as: v (7) (1);
the leakage current delay value (P2) of the protection device 7 (C14) in table 1 was extracted and is represented as: v (7) (2);
the leakage current operating value (P1) of the protection device 12 (C25) in table 1 is extracted and expressed as: v (12) (1);
the leakage current delay value (P2) of the protection device 12 (C25) in table 1 is extracted and is represented as: v (12) (2).
The edge calculation controller is based on the data in table 2,
the leakage current operation value (P1) of L3 in table 2 was extracted and expressed as: f (3) (1);
the leakage current delay value (P2) of L3 in table 2 was extracted and is shown as: f (3) (2).
The data in the above example two-dimensional table should correspond to:
(a)：V(4)(1)≤F(3)(1)，V(4)2≤F(3)(2)；
(b)：V(7)(1)≤F(3)(1)，V(7)(2)≤F(3)(2)；
(c)：V(12)(1)≤F(3)(1)， V(12)(2)≤F(3)(1)；
therefore, in (a), V (4) (1) =30 ≦ F (3) (1) =30, and V (4) (2) =0.1 ≦ F (3) (2) =0.1, it is logical, and therefore the protection device 4 (C11) indicated in (a) is set appropriately;
(b) where V (7) (1) =60 ≧ F (3) (1) =30, V (7) (2) =0.2 ≧ F (3) (2) =0.1, which is not logical, and therefore the protection device 7 (C14) indicated in (b) is set unreasonably;
(c) where V (12) (1) =30 ≦ F (3) (1) =30, and V (12) (2) =0.1 ≦ F (3) (2) =0.1, it is logical, and therefore the protection device 12 (C25) indicated in (C) is set appropriately.
S5: checking the association rationality of the protection parameters according to the logical relationship of the parent node and the child node for each level of the two-dimensional table containing the protection device attribute-protection parameters in the step S2;
the edge calculation controller is based on the data in table 1,
the leakage current operating value (P1) of the protection device 2 (B1) in table 1 is again extracted and expressed as: v (2) (1);
the leakage current delay value (P2) of the protection device 2 (B1) in table 1 is extracted again and is represented as: v (2) (2);
the leakage current operating value (P1) of the protection device 3 (B2) in table 1 is again extracted and expressed as: v (3) (1);
the leakage current delay value (P2) of the protection device 3 (B2) in table 1 is extracted again and is represented as: v (3) (2);
the leakage current operating value (P1) of the protection device 1 (a) in table 1 is extracted and expressed as: v (1) (1);
the leakage current delay value (P2) of the protection device 1 (a) in table 1 is extracted and is expressed as: v (1) (2);
the data in table 1 should correspond to:
(a):V(2)(1)≥V(4)(1)， V(2)(2)≥V(4)(2)；
(b):V(2)(1)≥V(7)(1)， V(2)(2)≥V(7)(2)；
(c):V(3)(1)≥V(12)(1)， V(3)(2)≥V(12)(2)；
(d):V(1)(1)≥V(2)(1)， V(1)(2)≥V(2)(2)；
(e):V(1)(1)≥V(3)(1)， V(1)(2)≥V(3)(2)；
therefore, in (a), V (2) (1) =100 ≧ V (4) (1) =30, V (2) (2) =0.2 ≧ V (4) (2) =0.1, which is logical, and therefore the protection device 4 (C11) indicated in (a) is set appropriately;
(b) in (a), V (2) (1) =100 ≧ V (4) (1) =60, V (2) (2) =0.2 ≧ V (4) (2) =0.2, which is logical, so the protection device 7 (C14) indicated in (b) is set reasonably; however, the protection device 7 (C14) does not comply with the logic in step S4, so the protection device 7 (C14) is still not unreasonable in setting. The unreasonable logic judgment is realized by the edge calculation controller, the edge calculation controller integrates the results in the step S4 and the step S5 for comprehensive judgment, and when any one of the step S4 and the step S5 is unreasonable, the judgment is unreasonable;
(c) in (1), V (3) (1) =30 ≧ V (12) (1) =30, V (3) (2) =0.1 ≧ V (12) (2) = 0.1; logical, so the protection device 12 (C25) indicated in (C) is reasonably set;
(d) in (1) =200 ≧ V (2) (1) =100, V (1) (2) =0.2 ≧ V (2) (2) = 0.2; logic is satisfied, and therefore the protection device 2 (b 1) indicated in (d) is set properly;
(e) in (1) =200 ≧ V (3) (1) =30, V (1) (2) =0.2 ≧ V (2) (2) = 0.2; the logic is satisfied, and therefore the protection device 3 (b 2) indicated in (e) is set appropriately.
S5: and the edge computing controller generates a checking result table according to the data obtained in the steps S3 and S4, sends the table 3 to a mobile phone APP or a computer of a user through a cloud platform, and marks the abnormal condition (the electric value of the protective equipment which does not accord with the logic condition) by red.
The electrical safety table 3 shown according to tables 1 and 2 is as follows:
TABLE 3
The above detailed description merely describes preferred embodiments of the present invention and does not limit the scope of the invention. Without departing from the spirit and scope of the present invention, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. The scope of the invention is defined by the claims.
Claims (7)
1. An electrical safety protection parameter checking method based on edge computing and a cloud platform is characterized by comprising the following steps:
s1: establishing a topological model of the electric circuit, and importing the topological model into the edge computing controller and the cloud platform;
s2: acquiring protection parameter values of each protection device through manual import or communication, and importing an edge computing controller and a cloud platform, wherein the edge computing controller constructs a two-dimensional table containing protection device attributes-protection parameters;
s3: based on the standards and specifications of the country, industry and customer specific scenes, establishing a two-dimensional table containing legal protection attributes-legal protection parameters according to the two-dimensional table format in the step S2;
s4: comparing the two-dimensional table containing the protection device attribute-protection parameter in the step S2 with the two-dimensional table containing the legal protection attribute-legal protection parameter in the step S3 one by one according to the level of the protection device, and checking the legality of all protection parameters;
s5: checking the association rationality of the protection device parameters according to the logical relationship of the parent node and the child node for each level of the two-dimensional table containing the protection device attributes and the protection parameters in the step S2;
s6: and outputting the checking result, and outputting and displaying the checking result to a user.
2. The electrical safety protection parameter checking method based on the edge computing and cloud platform as claimed in claim 1, wherein in step S1, the topology model is a tree structure, a first layer of the tree structure is protection device a, a second layer of the tree structure is protection devices B1, B2, …, Bk, k in total, a first group of a third layer is C11, C12, …, C1m, m in total, and so on, a third group of a k in the third layer is C1, Ck2, …, Ckn in total, n, B1 is a "parent node" of C11, C12, …, C1m, C11, C12, …, C1 … is a "child node" of B …, the protection devices B …, Bk in total, and so on.
3. The electrical safety protection parameter checking method based on the edge computing and cloud platform as claimed in claim 1, wherein in step S2, the two-dimensional table of "protection device attribute-protection parameter" includes the serial number of the parent node protection device of the previous level at the level where each protection device is located, and the serial number information of the protection device at the level where the protection device is located, and all protection devices are numbered and sorted from left to right according to the top and bottom of the topology structure.
4. The electrical safety protection parameter checking method based on the edge computing and cloud platform as claimed in claim 1, wherein in step S6, the edge computing controller outputs the two-dimensional table of the electrical parameter safety result according to the two-dimensional table of "protection device attribute-protection parameter" in step S2 and the "legal protection attribute-legal protection parameter" in step S3, marks the result abnormal value in the electrical parameter safety result, and sends the result abnormal value to the mobile phone APP or the computer of the user through the cloud platform.
5. The electrical safety protection parameter checking method based on the edge computing and the cloud platform as claimed in claim 1, wherein in step S2, when the system is not in operation, a "protection device attribute-protection parameter" two-dimensional table is generated by manually managing data, and the two-dimensional table is imported to the edge computing controller and the cloud platform for offline analysis.
6. The electrical safety protection parameter checking method based on the edge computing and the cloud platform as claimed in claim 1, wherein in step S2, when the system is running, the electrical parameters of the protection device in the electrical loop are obtained through communication and are imported into the edge computing controller and the cloud platform, and the two-dimensional table of "protection device attribute-protection parameter" is generated by the edge computing controller and the cloud platform for analysis.
7. The electrical safety protection parameter checking method based on the edge computing and cloud platform as claimed in claim 6, wherein when the system runs, the edge computing controller and the cloud platform perform cyclic checking, and when the topology model changes or the protection device parameters obtained through communication are modified, the data in the two-dimensional table of "protection device attribute-protection parameter" can be automatically changed, and a new checking result is output.
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| CN101088071A (en) * | 2004-11-19 | 2007-12-12 | Kw-软件有限公司 | Method and device for secure parameterization of electronic devices |
| CN103955777A (en) * | 2014-05-16 | 2014-07-30 | 天津大学 | Photovoltaic power generation access power distribution network scheme design and analysis assessment auxiliary system |
| CN110543493A (en) * | 2019-08-14 | 2019-12-06 | 珠海格力电器股份有限公司 | power safety early warning method and system based on information sharing and computer readable storage medium |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101088071A (en) * | 2004-11-19 | 2007-12-12 | Kw-软件有限公司 | Method and device for secure parameterization of electronic devices |
| CN103955777A (en) * | 2014-05-16 | 2014-07-30 | 天津大学 | Photovoltaic power generation access power distribution network scheme design and analysis assessment auxiliary system |
| CN110543493A (en) * | 2019-08-14 | 2019-12-06 | 珠海格力电器股份有限公司 | power safety early warning method and system based on information sharing and computer readable storage medium |
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Application publication date: 20200616 |