CN115438893A - Power dispatching equipment running state evaluation method and system - Google Patents
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Abstract
The invention discloses a method and a system for evaluating the running state of power dispatching equipment, wherein the method comprises the following steps: acquiring a network operation situation value, a protocol transmission situation value and a control service situation value of a power dispatching system corresponding to a fault event of the power dispatching equipment, and taking the maximum value of the network operation situation value, the protocol transmission situation value and the control service situation value as the power dispatching system situation value corresponding to the fault event; judging whether the situation value of the power dispatching system meets a preset threshold condition or not; if the preset threshold condition is met, judging that the fault event occurs; establishing an evaluation guide rule, wherein the evaluation guide rule comprises a fault event and a weight corresponding to the fault event; and subtracting the weight corresponding to the fault event on the basis of the preset score to obtain the score of the running state of the power dispatching equipment. The invention analyzes the electric power real-time information flow from three dimensions, and the evaluation result is accurate.
Description
Technical Field
The invention relates to the technical field of power dispatching system running state evaluation, in particular to a power dispatching equipment running state evaluation method and system.
Background
At present, the power grid in China is in a large power grid, extra-high voltage, long-span and alternating-current and direct-current parallel power transmission stage, and the structural complexity and the difficulty of operation control are difficult to compare. The dispatching system not only needs to be responsible for dispatching operation work of the power grid, but also needs to be responsible for three remote tasks of the transformer substation. Therefore, one factor for ensuring the safety and stability of the power grid is the safe operation of the dispatching system.
In recent years, a fault diagnosis study of a dispatch system has been performed by a common method such as an expert system, a neural network, and a Petri network. The expert system forms an expert diagnosis library by expressing the operation logic and the diagnosis experience information of the working personnel by rules, but the expert system is only suitable for small and medium-sized network structures because of excessive information needing to be integrated. The neural network adopts nonlinear fitting to obtain a diagnosis result through massive data information, but a required training data set is huge, and a training set for supporting the whole scheduling system is difficult to construct. The Petri network is very suitable for analyzing discrete events and modeling, a Petri algorithm is adopted for analyzing and diagnosing faults of the power system in many researches, a time-constrained power distribution network fault diagnosis method of an improved hierarchical fuzzy Petri network is provided by Yuanchuan and the like, forward and reverse time sequence inspection is utilized, and reliability is corrected; the Sunzojun et al provides a fault diagnosis method of a dynamic modeling fuzzy Petri network with information optimization, and the hierarchy of a fault diagnosis process is increased.
The method for diagnosing the faults of the fuzzy Petri network is adopted, and the running state of the power dispatching equipment is evaluated only through one formula, so that the evaluation result is not accurate. Meanwhile, as the dispatching system has a complex structure and a huge network topology structure, and faults which do not occur can occur, the traditional Petri network is difficult to solve, and the situations of unstable running state, deviation of diagnosis results and the like exist,
disclosure of Invention
The invention aims to provide a method and a system for evaluating the running state of power dispatching equipment, which at least solve the technical problem that the running state of the power dispatching equipment is evaluated only by a formula when the running state of the power dispatching equipment is evaluated by adopting a fault diagnosis method of a fuzzy Petri network in the prior art, so that the evaluation result is not accurate.
The invention is realized by the following technical scheme:
the invention provides a method for evaluating the running state of power dispatching equipment, which comprises the following steps:
corresponding the analyzed message of the power dispatching system to a library node, a transition node and a token of the Petri network;
acquiring a network operation situation value NSV, a protocol transmission situation value PSV and a control service situation value BSV of the power dispatching system corresponding to a fault event of the power dispatching equipment according to the Petri network, and taking the maximum value of the network operation situation value NSV, the protocol transmission situation value PSV and the control service situation value BSV as a power dispatching system situation value SSV corresponding to the fault event;
judging whether the situation value SSV of the power dispatching system meets a preset threshold condition or not;
if the preset threshold condition is met, judging that the fault event occurs;
establishing an evaluation guide rule, wherein the evaluation guide rule comprises a fault event and a weight corresponding to the fault event;
and subtracting the weight corresponding to the fault event on the basis of the preset score to obtain the score of the running state of the power dispatching equipment.
Further, before the analyzed message of the power dispatching system is corresponding to a library node, a transition node and a token of the Petri network, the method further comprises the following steps:
acquiring an original message of a power dispatching system;
and analyzing the original message to obtain an analyzed message.
Further, the network operation situation value NSV is a larger value of the network operation safety situation value NSSV and the channel operation situation value NCSV of the power dispatching system.
Further, the network operation security situation value NSSV is the sum of the network abnormal IP access situation value and the abnormal port access situation value, and the network abnormal IP access situation value
Exception port access posture value
Further, the channel operation situation value
Further, the protocol transmission situation value is the sum of the protocol application layer channel state value and the protocol transmission fault value, that is to say
PSV(k+1)＝α 1 PSV Channel (k+1)+α 2 PSV Transfer (k+1)。
Further, the Petri net is a D-dimensional space Petri net.
The invention also provides a power dispatching equipment running state evaluation system, which comprises:
the corresponding module is used for corresponding the analyzed messages of the power dispatching system to the library nodes, the transition nodes and the Token of the Petri network;
the first acquisition module is used for acquiring a network operation situation value NSV, a protocol transmission situation value PSV and a control service situation value BSV of the power dispatching system corresponding to a fault event occurring in the power dispatching equipment according to the Petri network, and taking the maximum value of the network operation situation value NSV, the protocol transmission situation value PSV and the control service situation value BSV as a power dispatching system situation value SSV corresponding to the fault event;
the judging module is used for judging whether the situation value SSV of the power dispatching system meets a preset threshold condition or not; if the preset threshold condition is met, judging that the fault event occurs;
the evaluation guide rule establishing module is used for establishing an evaluation guide rule, and the evaluation guide rule comprises a fault event and a weight corresponding to the fault event;
and the evaluation module is used for subtracting the weight corresponding to the fault event on the basis of the preset score to obtain the score of the running state of the power dispatching equipment.
Further, the method also comprises the following steps:
the second acquisition module is used for acquiring an original message of the power dispatching system;
and the analysis module is used for analyzing the original message to obtain an analyzed message.
Further, the network operation situation value NSV is a larger value of a network operation safety situation value NSSV and a channel operation situation value NCSV of the power scheduling system.
Further, the network operation security situation value NSSV is the sum of the network abnormal IP access situation value and the abnormal port access situation value, and the network abnormal IP access situation value
Exception port access posture value
Further, the channel operation situation value
Further, the protocol transmission situation value is the sum of the protocol application layer channel state value and the protocol transmission fault value, that is
PSV(k+1)＝α 1 PSV Channel (k+1)+α 2 PSV Transfer (k+1)。
Further, the Petri net is a D-dimensional space Petri net.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the method and the system for evaluating the running state of the power dispatching equipment, provided by the invention, a multi-dimensional analysis evaluation system is constructed, and a power real-time information flow (message of the power dispatching system) is analyzed from three dimensions of 'network data flow', 'automatic protocol communication state' and 'power grid control process', so that the technical problem that the evaluation result is not accurate as long as the running state of the power dispatching equipment is evaluated only by one formula when the running state of the power dispatching equipment is evaluated by adopting a fault diagnosis method of a fuzzy Petri network in the prior art is at least solved.
According to the method and the system for evaluating the running state of the power dispatching equipment, the Petri network is a D-dimensional space Petri network, the D-dimensional space Petri network is adopted for evaluating the running state of the power dispatching equipment and diagnosing faults of the dispatching system, the running faults can be found in time and positioned quickly, the uncertainty of the traditional Petri network is eliminated, and the running stability of the dispatching system is effectively improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a flowchart of an operation state evaluation method of a power dispatching device according to the present invention;
fig. 2 is a schematic structural diagram of an operation state evaluation system of a power dispatching device according to the present invention;
fig. 3 is a diagram illustrating an example of a unit of a D-dimensional space Petri net D =2 in the method for evaluating the operation state of the power scheduling device according to the present invention;
FIG. 4 is a D-dimensional space Petri net model in the power scheduling device operation state evaluation method according to the invention;
FIG. 5 is a schematic diagram of a multidimensional index architecture in the method for evaluating the operating state of the power dispatching equipment according to the present invention;
FIG. 6 is a power grid control timing sequence process table and a power grid dispatching associated service table in the power dispatching equipment operation state evaluation method according to the present invention;
FIG. 7 is a flowchart illustrating an evaluation and maintenance strategy in the method for evaluating an operating state of a power dispatching device according to the present invention;
fig. 8 is a schematic diagram of real-time monitoring of a substation in the method for evaluating the operating state of power dispatching equipment according to the present invention;
fig. 9 is a schematic diagram of fault location in the method for evaluating the operating state of the power dispatching device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
The Petri net represents a bilateral directed graph which comprises two types of positions and nodes and is different in arcs. The dynamic elements are called tokens and are located inside the positions, and the identification of the Petri net is the number of tokens in each position. The result of the transition trigger is represented by the consumption and generation of tokens and thus the behavior of the network.
For nets without closed loops, the Petri net model is traditionally represented by a matrix (B, D) or C. When the matrix C is a sparse matrix, methods need to be applied to the specified sparse matrix, and a sparse matrix can be described by specifying individual non-zero elements or specifying rows thereof. Considering that a row has some non-zero elements, it is preferable to perform the specification by row. One row of the matrix C corresponds to one transition and one column corresponds to one position. The sparse rows of matrix C are described as:
[t i ：]nc i，1 *x i，1 ，..nc i，n *x i，n →pc i，1 *y i，1 ，..pc i，m *y i，m (1)
in parentheses, the information represents a transition, and is purely complementary in nature. For a Petri net tag description, a sparse vector is specified by enumeration of its non-zero components.
When a Petri net element forms a regular spatial structure, the supplementary index of its node may reflect its mutual position in space. Consider a discrete space divided by cells and represent the cells with d-tuples of natural numbers in the d-dimensional space to supplement the index. Sparse vectors collected from the spatial index, the index range and the auxiliary function constitute a parametric expression.
Considering a unit-sized hypercube in d-dimensional space as a spatial model of a cell, it represents a broad communication strategy conceptually, whose principle is storage and migration based packet switching. There are 2d ports located on each plane of the hypercube, which have independent receive and transmit paths in full duplex mode. The strategy model is shown as formula 2 and named as Hd; the model has only one dimension of the extrinsic parameter, denoted as d.
Wherein p represents a position; t represents a transition; b designating a buffer area; 1 specifies a limit; i designates an input; o designates the output. One face of the hypercube is designated by a pair of indices (j, n), where j represents the number of dimensions perpendicular to the face and n represents the number of faces, i.e., directions. For example, 1 corresponds to a plane close to the origin of the grid (the direction being the origin), and 2 corresponds to a plane far from the origin of the grid (the direction being infinity). Example of d =2 please refer to fig. 3:
the input channel of one port (j, n) is pi j，n ，pil j，n ，ti j，n，j’，n’ . Input buffer Placement and pi j，n Port of (1), pil j，n The buffer size is limited. ti j，n，j’，n’ The direction of transmission is determined, from the input (j, n) to the output (j ', n'), (j ', n') ≠ (j, n).
Equation (2) includes two rows: one line describes all to j，n The other row describes all ti j，n，j’，n’ . The input-output arc describes a transition path and is at { po j，n ，pol j，n }，{pi j，n ，pil j，n }，{pb j，n Balancing of tokens within a complementary set of locations of pbl, po j，n ，pol j，n ，pi j，n And pi l j，n As contact points for further connection of cells within the grid.
The model in equation (2) can be represented by fig. 4:
example one
The invention is realized by the following technical scheme:
referring to fig. 1, 5 and 6, the present invention provides a method for evaluating an operating state of a power dispatching device, including:
s101, corresponding the analyzed messages of the power dispatching system to a place node, a transition node and a Token of the Petri network;
s102, acquiring a network operation situation value NSV, a protocol transmission situation value PSV and a control service situation value BSV of the power dispatching system corresponding to a fault event occurring in the power dispatching equipment according to the Petri network, and taking the maximum value of the network operation situation value NSV, the protocol transmission situation value PSV and the control service situation value BSV as a power dispatching system situation value SSV corresponding to the fault event;
s103, judging whether the situation value SSV of the power dispatching system meets a preset threshold condition or not;
s104, if a preset threshold condition is met, judging that the fault event occurs;
s105, establishing an evaluation guide rule, wherein the evaluation guide rule comprises a fault event and a weight corresponding to the fault event;
and S106, subtracting the weight corresponding to the fault event on the basis of the preset score to obtain the score of the running state of the power dispatching equipment.
As a specific implementation manner, before the step of corresponding the analyzed message of the power scheduling system to the depot node, the transition node and the token of the Petri network, the method further includes:
acquiring an original message of a power dispatching system;
and analyzing the original message to obtain an analyzed message.
In the invention, the network operation situation value NSV, the protocol transmission situation value PSV and the control service situation value BSV are 0-100 dimensionless data. Wherein, 0 to 45 is normal, 45 to 80 is yellow early warning, and 80 to 100 is red warning. And taking the maximum value of the network operation situation value NSV, the protocol transmission situation value PSV and the control service situation value BSV, namely the situation value which is most influenced by the fault event as the situation value SSV of the power dispatching system.
The threshold condition may be that the object is determined to be within a range, for example, the threshold condition is greater than 80, if the power scheduling system situation value SSV is 70, the preset threshold condition is not satisfied, and the fault event does not occur; and if the situation value SSV of the power dispatching system is 85, the preset threshold condition is met, and the fault event occurs. The fault event may be a short circuit or an open circuit of the power dispatching device.
Let the evaluation scheme of the power dispatching device be p1, and include evaluation leads r1, r2, r3, which correspond to fault events e1, e2, e3, respectively, and corresponding weights are w1, w2, w3, respectively, where the frequency may need to be considered during evaluation of events e2, e3, and therefore the relationship between a lead and an event may be set by a weight, as shown in the following table.
When the guide rule and the event are related to the frequency, a certain correlation relationship is formed among the guide rule, the event and the frequency, as shown in the following table, and the event e1 deducts the score w1 as long as the event exists, and deducts the score once.
Wherein the frequency range standard is set to the number of events occurring within one hour; and according to the pareto principle, w1+ w2+ w3 is less than or equal to 80. Assuming that the evaluation object is s1, the scheme p1 thereof includes a guideline r1, r2, r3 corresponding to the events e1, e2, e3 respectively, the corresponding weights are 10, 40, 30 respectively, the number of events occurring within 24 hours corresponds to 20, 37, 101, the deduction of the event e1 should be 10, the deduction of the event e2 is equal to or less than 1 and equal to 37/24 and less than 4, and 8 points are deducted, the deduction of the event e3 is equal to or less than 4 and equal to or less than 101/24 and less than 9, and 8 points are deducted, and finally the total deduction is 10+ 8=26 points, and the score is 100-26=74 points. The higher the score, the better the operating state of the power scheduling apparatus, and the lower the score, the worse the operating state of the power scheduling apparatus.
According to the method and the system for evaluating the running state of the power dispatching equipment, provided by the invention, a multi-dimensional analysis evaluation system is constructed, and the real-time power information flow (the message of the power dispatching system) is analyzed from three dimensions of network data flow, automatic protocol communication state and power grid control process, so that the technical problem that the evaluation result is not accurate as long as the running state of the power dispatching equipment is evaluated by only one formula when the fault diagnosis method of the fuzzy Petri network is adopted in the prior art is at least solved.
According to the invention, a scheduling information multi-layer clustering information fusion algorithm is constructed through a situation awareness technology system facing electric power real-time control information flow, and an operation state evaluation guide rule is given.
The method has certain help in the aspects of online research and judgment of remote control and remote regulation abnormity, situation assessment of real-time information flow, data backtracking analysis and the like, and lays a foundation for further intellectualization of the power dispatching system. The invention adopts a JAVA platform to realize the application data analysis and online check based on the power dispatching service, the real-time state of the transformer substation refers to a figure 8, the diagnosis result refers to a figure 9, and the dark black arrow part represents the fault position. Compared with 6 groups of experimental data, the method is obviously superior to a comparison method by the comprehensive accuracy of 90%.
The method analyzes and extracts key modes aiming at massive data related to typical services transmitted by a scheduling data network, and performs mode identification through an information fusion technology of multi-data and multi-mode characteristics. And carrying out real-time online intelligent analysis and alarm on abnormal service flow information, abnormal service operation information and abnormal service state information, and providing a technical basis for troubleshooting of hidden dangers of an operating system.
The method and the device evaluate the running state of the power dispatching equipment, have reference function on fault diagnosis, evaluate the running state of each power station according to the evaluation standard and can optimize the diagnosis result. Therefore, a health model base of the dispatching automation system is established, and health models of various devices of the dispatching automation system are managed; finishing information classification and state evaluation, and establishing an evaluation guide rule; events in the extracted information model are summarized, characteristic points and judgment bases in the communication process are formed, reasons for fault generation are listed, association with maintenance strategies is achieved, and on the basis, the operation state evaluation of the dispatching automation system is achieved. Please refer to fig. 7 for the flow of evaluating the overhaul strategy. And determining a project object from the communication angle, and establishing an evaluation model of the transformer substation or the communication line according to a calculation method and a state evaluation system of the actual operation condition. The substation consists of channels and sub-networks consisting of their own equipment, so all events within the substation consist of the centres of the substations and sub-networks. Based on the assessment method, the transformer substation is automatically assessed according to assessment indexes, and the result is automatically submitted to the equipment condition.
As a specific implementation manner, the network operation situation value NSV is a larger value of a network operation security situation value NSSV and a channel operation situation value NCSV of the power scheduling system.
As a specific implementation manner, the network operation security situation value NSSV is a sum of a network abnormal IP access situation value and an abnormal port access situation value, and the network abnormal IP access situation value
Exception port access posture value
The network operation security situation value NSSV mainly describes the network access security feature of a security I/II area of a scheduling data network, and the security situation currently comprises the judgment of abnormal IP access and abnormal port access of the network. Abnormal IP accesses were calculated every 5 minutes as being correlated daily.
Considering the operation characteristics of the I/II area of the dispatching data network, for abnormal IP access evaluation, the principle is that the abnormal IP only appears once in an evaluation period, the situation value is the largest, if the abnormal IP appears periodically, the abnormal IP is a legal IP theoretically, the user needs to increase configuration, and the system is mainly used as early warning reminding. For each NSSV IP ∈(NSSV min ，NSSV max ) Abnormal IP, the calculation formula is
NSSV IP ＝Max(NSSV ip(1) ，NSSV ip(2) ，......，NSSV ip(M) )
The abnormal port access security evaluation considers access monitoring on non-designated ports that monitor the IP.
As a specific embodiment, the channel operation situation value
As a specific implementation, the protocol transmission situation value is the sum of a protocol application layer channel state value and a protocol transmission fault value, that is to say
PSV(k+1)＝α 1 PSV Channel (k+1)+α 2 PSV Transfer (k+1)。
The dimension of the power grid control process is determined according to the power grid control time sequence table and the power grid dispatching associated service table, please refer to fig. 6 specifically.
In a specific embodiment, the Petri net is a D-dimensional spatial Petri net.
According to the method and the system for evaluating the running state of the power dispatching equipment, the Petri network is a D-dimensional space Petri network, D-dimensional distribution better accords with the distribution of messages of a power dispatching system, and the D-dimensional distribution and the D-dimensional space Petri network are matched in a comparison mode. The fault is diagnosed by combining the D-dimensional space Petri network with situation awareness, the operation fault can be found in time and positioned quickly, and the uncertainty of the traditional Petri network is eliminated. Compared with the method with the closest effect, the comprehensive accuracy is improved by 8.3 percent, and the stability and the accuracy are effectively improved.
Example two
Referring to fig. 2, the present invention further provides an evaluation system for an operating status of a power dispatching device, including:
the corresponding module is used for corresponding the analyzed messages of the power dispatching system to the depot nodes, the transition nodes and the Token of the Petri network;
the first acquisition module is used for acquiring a network operation situation value NSV, a protocol transmission situation value PSV and a control service situation value BSV of the power dispatching system corresponding to a fault event occurring in the power dispatching equipment according to the Petri network, and taking the maximum value of the network operation situation value NSV, the protocol transmission situation value PSV and the control service situation value BSV as a power dispatching system situation value SSV corresponding to the fault event;
the judging module is used for judging whether the situation value SSV of the power dispatching system meets a preset threshold condition or not; if the preset threshold condition is met, judging that the fault event occurs;
the evaluation guide rule establishing module is used for establishing an evaluation guide rule, wherein the evaluation guide rule comprises a fault event and a weight corresponding to the fault event;
and the evaluation module is used for subtracting the weight corresponding to the fault event on the basis of the preset score to obtain the score of the running state of the power dispatching equipment.
As a specific embodiment, the method further comprises the following steps:
the second acquisition module is used for acquiring an original message of the power dispatching system;
and the analysis module is used for analyzing the original message to obtain an analyzed message.
As a specific implementation manner, the network operation situation value NSV is a larger value of the network operation safety situation value NSSV and the channel operation situation value NCSV of the power dispatching system.
As a specific implementation manner, the network operation security situation value NSSV is a sum of a network abnormal IP access situation value and an abnormal port access situation value, and the network abnormal IP access situation value
Exception port access posture value
As a specific embodiment, the channel operation situation value
As a specific implementation, the protocol transmission situation value is the sum of a protocol application layer channel state value and a protocol transmission fault value, that is to say
PSV(k+1)＝α 1 PSV Chanel (k+1)+α 2 PSV Transfer (k+1)。
In a specific embodiment, the Petri net is a D-dimensional spatial Petri net.
For the specific implementation process of the second embodiment, since the method of the first embodiment has been described in detail, it is not described herein again.
It will be understood by those skilled in the art that all or part of the steps of the above facts and methods can be implemented by hardware related to instructions of a program, and the related program or the program can be stored in a computer readable storage medium, and when executed, the program includes the following steps: corresponding method steps are introduced, and the storage medium can be ROM/RAM, magnetic disk, optical disk, etc
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for evaluating the running state of power dispatching equipment is characterized by comprising the following steps:
corresponding the analyzed message of the power dispatching system to a library node, a transition node and a token of the Petri network;
acquiring a network operation situation value NSV, a protocol transmission situation value PSV and a control service situation value BSV of the power dispatching system corresponding to a fault event occurring in the power dispatching equipment according to the Petri network, and taking the maximum value of the network operation situation value NSV, the protocol transmission situation value PSV and the control service situation value BSV as a power dispatching system situation value SSV corresponding to the fault event;
judging whether the power dispatching system situation value SSV meets a preset threshold condition or not;
if the preset threshold condition is met, judging that the fault event occurs;
establishing an evaluation guide rule, wherein the evaluation guide rule comprises a fault event and a weight corresponding to the fault event;
and subtracting the weight corresponding to the fault event on the basis of the preset score to obtain the score of the running state of the power dispatching equipment.
2. The method for evaluating the operation state of the power scheduling device according to claim 1, wherein before the message of the power scheduling system after the analysis is mapped to the depot node, the transition node and the tofukan of the Petri network, the method further comprises:
acquiring an original message of a power dispatching system;
and analyzing the original message to obtain an analyzed message.
3. The method for evaluating the operation state of the power scheduling apparatus according to claim 1, wherein the network operation situation value NSV is a larger value of a network operation safety situation value NSSV and a channel operation situation value NCSV of the power scheduling system.
4. The method for evaluating the operation status of the power dispatching equipment according to claim 3, wherein the network operation security situation value NSSV is the sum of the network abnormal IP access situation value and the abnormal port access situation value, and the network abnormal IP access situation value
Exception port access posture value
5. The power dispatching device operating state evaluation method of claim 3, wherein the channel operating situation value
6. The power dispatching device operation state evaluation method of claim 1, wherein the protocol transmission situation value is a sum of a protocol application layer channel state value and a protocol transmission fault value
PSV(k+1)＝α 1 PSV Channel (k+1)+α 2 PSV Transfer (k+1)。
7. The power scheduling device operating state evaluation method of claim 1 wherein the Petri nets are D-dimensional spatial Petri nets.
8. An operating state evaluation system for power dispatching equipment is characterized by comprising:
the corresponding module is used for corresponding the analyzed messages of the power dispatching system to the depot nodes, the transition nodes and the Token of the Petri network;
the first acquisition module is used for acquiring a network operation situation value NSV, a protocol transmission situation value PSV and a control service situation value BSV of the power dispatching system corresponding to a fault event occurring in the power dispatching equipment according to the Petri network, and taking the maximum value of the network operation situation value NSV, the protocol transmission situation value PSV and the control service situation value BSV as a power dispatching system situation value SSV corresponding to the fault event;
the judging module is used for judging whether the situation value SSV of the power dispatching system meets a preset threshold condition or not; if the preset threshold condition is met, judging that the fault event occurs;
the evaluation guide rule establishing module is used for establishing an evaluation guide rule, wherein the evaluation guide rule comprises a fault event and a weight corresponding to the fault event;
and the evaluation module is used for subtracting the weight corresponding to the fault event on the basis of the preset score to obtain the score of the running state of the power dispatching equipment.
9. The power scheduling apparatus operating state evaluation system according to claim 8, further comprising:
the second acquisition module is used for acquiring an original message of the power dispatching system;
and the analysis module is used for analyzing the original message to obtain an analyzed message.
10. The power dispatching equipment running state evaluation system of claim 8, wherein the network running situation value NSV is the larger of a network running safety situation value NSSV and a channel running situation value NCSV of the power dispatching system.
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| CN116074184A (en) * | 2023-03-21 | 2023-05-05 | 云南莱瑞科技有限公司 | Network fault early warning system of power dispatching center |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116074184A (en) * | 2023-03-21 | 2023-05-05 | 云南莱瑞科技有限公司 | Network fault early warning system of power dispatching center |
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