CN114995242A - Remote control device for low-voltage circuit breaker of offshore power grid - Google Patents
Remote control device for low-voltage circuit breaker of offshore power grid Download PDFInfo
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- CN114995242A CN114995242A CN202210648424.3A CN202210648424A CN114995242A CN 114995242 A CN114995242 A CN 114995242A CN 202210648424 A CN202210648424 A CN 202210648424A CN 114995242 A CN114995242 A CN 114995242A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/23—Pc programming
- G05B2219/23051—Remote control, enter program remote, detachable programmer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Abstract
The invention discloses a remote control device for a low-voltage circuit breaker of an offshore power grid, which relates to the technical field of remote control of circuit breakers and solves the technical problem that the fault tolerance of the circuit breaker of the offshore power grid cannot be controlled when the low-voltage circuit breaker of the offshore power grid is remotely controlled in the prior art, and corresponding influence data are analyzed to judge whether the influence data are influenced by the environment or not, so that the control efficiency and the accuracy of the influence data are improved, and the abnormal operation process of the offshore power grid caused by the environmental influence is prevented, and the operation efficiency of the offshore power grid is reduced; whether fault-tolerant control of the circuit breaker is qualified or not is judged, the fault-tolerant control force is prevented from being too low, the circuit breaker is caused to operate untimely to cause a marine power grid accident, meanwhile, the fault-tolerant control force is also prevented from being too high, the circuit breaker operates too frequently, the operation efficiency of the marine power grid is reduced, the operation intensity of the circuit breaker is increased, and the operation life of the circuit breaker is prolonged.
Description
Technical Field
The invention relates to the technical field of remote control of circuit breakers, in particular to a remote control device for a low-voltage circuit breaker of an offshore power grid.
Background
The whole formed by the substation and the transmission and distribution lines of various voltages in the power system is called a power grid, which is called a power grid for short. The system comprises three units of power transformation, power transmission and power distribution; remote control is applied in an industrial environment, mainly in two ways: one is a centralized architecture and the other is a distributed architecture. The network technology is necessarily introduced into the remote control from the prior field control to the present, and the two schemes adopt the network technology and only have different connection modes.
However, in the prior art, when the offshore power grid low-voltage circuit breaker is remotely controlled, the fault tolerance of the circuit breaker cannot be controlled, so that the operation efficiency of the offshore power grid is low and power accidents are easily caused due to unqualified fault tolerance control; meanwhile, the rationality of the low-voltage circuit breaker cannot be analyzed, so that the efficiency of remote control is reduced.
In view of the above technical drawbacks, a solution is proposed.
Disclosure of Invention
The invention aims to solve the problems, and provides a remote control device for a low-voltage circuit breaker of an offshore power grid, which is beneficial to detecting the operation quality of the offshore power grid and accurately controlling the circuit breaker by judging the influence data of the power grid, so that the operation qualification of the offshore power grid is improved; analyzing the corresponding influence data, and judging whether the influence data are influenced by the environment or not, so that the control efficiency and accuracy of the influence data are improved, and the abnormal operation process of the offshore power grid caused by the influence of the environment is prevented, so that the operation efficiency of the offshore power grid is reduced; whether fault-tolerant control of the circuit breaker is qualified or not is judged, the fault-tolerant control force is prevented from being too low, the circuit breaker is prevented from running untimely to cause an offshore power grid accident, meanwhile, the fault-tolerant control force is also prevented from being too high, the circuit breaker runs too frequently, the running efficiency of the offshore power grid is reduced, the running strength of the circuit breaker is increased, and the running life of the circuit breaker is shortened.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a marine electric wire netting low voltage circuit breaker remote control device, includes the treater, and the treater communication connection has:
analyzing the operation process of the offshore power grid through a power grid influence data analysis unit, acquiring influence data and non-influence data in the offshore power grid through analysis, analyzing corresponding influence data through an environmental factor analysis unit, judging whether the influence data are influenced by the environment or not, acquiring an analysis coefficient of the environmental factor corresponding to the influence data through environmental analysis, and generating an environmental influence signal and an environmental non-influence signal through analysis of the analysis coefficient of the environmental factor corresponding to the influence data;
analyzing the fault-tolerant control of the corresponding circuit breaker by an equipment fault-tolerant control analysis unit, judging whether the fault-tolerant control of the circuit breaker is qualified or not, acquiring a fault-tolerant control analysis coefficient of the circuit breaker, comparing the fault-tolerant control analysis coefficient to generate a fault-tolerant control low-intensity signal, a fault-tolerant control high-intensity signal and a fault-tolerant control qualified signal, and performing fault-tolerant control according to signals of different types; the reasonability analysis is carried out on the control of the circuit breaker by the control reasonability analysis unit, whether the remote control of the circuit breaker is reasonable or not is analyzed, and reasonability abnormal signals and reasonability normal signals are generated through data analysis and sent to the processor.
As a preferred embodiment of the present invention, the operation process of the grid impact data analysis unit is as follows:
collecting a historical operation time period of the offshore power grid, dividing the historical operation time period into i sub-time points, wherein i is a natural number greater than 1, and collecting parameter data of the offshore power grid;
acquiring sub time points of the offshore power grid for maintenance in the historical operation time period, marking the corresponding sub time points as fault time points, acquiring the floating frequency of the corresponding parameter data of the fault time points and the probability of controlling the corresponding parameter data of the fault time points, and comparing the floating frequency with the floating frequency threshold and the control probability threshold respectively:
if the floating frequency of the parameter data corresponding to the fault time point exceeds a floating frequency threshold value or the probability of controlling the parameter data corresponding to the fault time point exceeds a control probability threshold value, marking the corresponding parameter data as influence data; if the floating frequency of the corresponding parameter data of the fault time point does not exceed the floating frequency threshold value and the probability of controlling the corresponding parameter data of the fault time point does not exceed the control probability threshold value, marking the corresponding parameter data as non-influenced data; the impact data and non-impact data are sent to a processor.
As a preferred embodiment of the present invention, the environmental factor analyzing unit operates as follows:
acquiring environmental factors corresponding to each fault time point, wherein the environmental factors comprise environmental data such as environmental temperature, environmental humidity and the like, the environmental data such as the environmental temperature, the environmental humidity and the like are subdata of the environmental factors, and acquiring the floating frequency of subdata in the environmental factors when each fault time point corresponds to the influence data is abnormal, the number of fault time points corresponding to the moment point of the subdata floating in the environmental factors and the successful maintenance probability of equipment corresponding to the fault time point when the subdata in the environmental factors continuously float;
analyzing and obtaining an analysis coefficient of environmental factors corresponding to the influence data of the fault time point; comparing the environmental factor analysis coefficient corresponding to the influence data of the fault time point with an environmental factor analysis coefficient threshold value:
if the environmental factor analysis coefficient corresponding to the influence data of the fault time point exceeds the environmental factor analysis coefficient threshold value, judging that the corresponding influence data is influenced by the environmental factor, generating an environmental influence signal and sending the environmental influence signal to the processor; and if the environmental factor analysis coefficient corresponding to the influence data of the fault time point does not exceed the environmental factor analysis coefficient threshold, judging that the corresponding influence data is not influenced by the environmental factor, generating an environmental no-influence signal and sending the environmental no-influence signal to the processor.
As a preferred embodiment of the present invention, the operation process of the equipment fault-tolerant control analysis unit is as follows:
marking real-time operation influencing data as a risk execution event, namely when the influence data is voltage, regulating and controlling the voltage to be the risk execution event; acquiring the interval duration between the execution time of the risk execution event and the operation time of the circuit breaker, the influence data floating value of the risk execution event corresponding to the operation time of the circuit breaker and the execution times of the risk execution event corresponding to the operation time of the circuit breaker; acquiring a fault-tolerant control analysis coefficient of the circuit breaker through analysis; comparing the fault-tolerant control analysis coefficient of the circuit breaker with a threshold range of the fault-tolerant control analysis coefficient:
if the fault-tolerant control analysis coefficient of the circuit breaker exceeds the fault-tolerant control analysis coefficient threshold range, judging that the fault-tolerant control intensity of the corresponding circuit breaker is low, generating a fault-tolerant control low-intensity signal and sending the fault-tolerant control low-intensity signal to a processor, and after receiving the fault-tolerant control low-intensity signal, the processor strengthens the fault-tolerant control of the corresponding circuit breaker, so that the execution times of risk execution events or control influence data floating values are reduced;
if the fault-tolerant control analysis coefficient of the circuit breaker is lower than the fault-tolerant control analysis coefficient threshold range, judging that the fault-tolerant control intensity of the corresponding circuit breaker is high, generating a fault-tolerant control high-intensity signal and sending the fault-tolerant control high-intensity signal to a processor, and after the processor receives the fault-tolerant control high-intensity signal, adjusting the fault tolerance of the corresponding circuit breaker, so that the executable quantity of risk execution events is increased or the influence data floating value is increased;
and if the fault-tolerant control analysis coefficient of the circuit breaker is within the fault-tolerant control analysis coefficient threshold range, judging that the fault-tolerant control strength of the corresponding circuit breaker is qualified, generating a fault-tolerant control qualified signal and sending the fault-tolerant control qualified signal to the processor.
As a preferred embodiment of the present invention, the operation of the control rationality analyzing unit is as follows:
the method comprises the following steps of collecting the fault rate of the offshore power grid after the remote control of the circuit breaker and the buffer duration of the remote control of the circuit breaker, and comparing the fault rate with a fault rate threshold and a buffer duration threshold respectively:
if the fault rate of the offshore power grid exceeds the fault rate threshold value after the circuit breaker is remotely controlled, or the buffering time length of the remote control of the circuit breaker exceeds the buffering time length threshold value, judging that the rationality of the corresponding remote control of the circuit breaker is low, generating a rationality abnormal signal and sending the rationality abnormal signal to a processor;
if the fault rate of the offshore power grid does not exceed the fault rate threshold value after the remote control of the circuit breaker, and the buffering time length of the remote control of the circuit breaker does not exceed the buffering time length threshold value, the reasonability of the corresponding remote control of the circuit breaker is judged to be high, and reasonability normal signals are generated and sent to the processor.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the influence data of the power grid is judged, so that the detection of the operation quality of the offshore power grid is facilitated, meanwhile, the circuit breaker can be accurately controlled, and the operation qualification of the offshore power grid is improved; analyzing the corresponding influence data, and judging whether the influence data are influenced by the environment or not, so that the control efficiency and accuracy of the influence data are improved, and the abnormal operation process of the offshore power grid caused by the environmental influence is prevented, so that the operation efficiency of the offshore power grid is reduced; judging whether fault-tolerant control of the circuit breaker is qualified or not, preventing the fault-tolerant control force from being too low, so that the circuit breaker cannot operate timely to cause an offshore power grid accident, and simultaneously preventing the fault-tolerant control force from being too high, so that the circuit breaker operates too frequently, the operation efficiency of the offshore power grid is reduced, the operation intensity of the circuit breaker is increased, and the operation life of the circuit breaker is shortened; the reasonability analysis is carried out on the control of the circuit breaker, whether the remote control of the circuit breaker is reasonable or not is analyzed, so that the operation efficiency of the circuit breaker is detected, and the reduction of the operation efficiency of the offshore power grid caused by the disqualified remote control efficiency of the circuit breaker is prevented.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of a remote control device for a low-voltage circuit breaker of an offshore power grid according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Referring to fig. 1, the remote control device for the low-voltage circuit breaker of the offshore power grid comprises a processor, wherein the processor is in communication connection with a power grid influence data analysis unit, an environmental factor analysis unit, an equipment fault-tolerant control analysis unit and a control rationality analysis unit, and the processor, the power grid influence data analysis unit, the environmental factor analysis unit, the equipment fault-tolerant control analysis unit and the control rationality analysis unit are in bidirectional communication connection;
the processor generates an influence data analysis signal and sends the influence data analysis signal to the power grid influence data analysis unit, the power grid influence data analysis unit analyzes the operation process of the offshore power grid after receiving the influence data analysis signal, and influence data in the offshore power grid are obtained through analysis, wherein the influence data are expressed as parameters in the offshore power grid, such as voltage, current and the like; by judging the influence data of the power grid, the detection of the operation quality of the offshore power grid is facilitated, meanwhile, the circuit breaker can be accurately controlled, and the operation qualification of the offshore power grid is improved;
collecting a historical operation time period of the offshore power grid, dividing the historical operation time period into i sub-time points, wherein i is a natural number greater than 1, and collecting parameter data of the offshore power grid, such as voltage, current and the like; acquiring sub time points of the offshore power grid for maintenance in a historical operation time period, marking the corresponding sub time points as fault time points, acquiring the floating frequency of the corresponding parameter data of the fault time points and the probability of controlling the corresponding parameter data of the fault time points, and comparing the floating frequency of the corresponding parameter data of the fault time points and the probability of controlling the corresponding parameter data of the fault time points with a floating frequency threshold value and a control probability threshold value respectively:
if the floating frequency of the parameter data corresponding to the fault time point exceeds a floating frequency threshold value or the probability of controlling the parameter data corresponding to the fault time point exceeds a control probability threshold value, marking the corresponding parameter data as influence data; if the floating frequency of the parameter data corresponding to the fault time point does not exceed the floating frequency threshold value and the probability of controlling the parameter data corresponding to the fault time point does not exceed the control probability threshold value, marking the corresponding parameter data as non-influence data;
sending the impact data and the non-impact data to a processor;
after receiving the influence data and the non-influence data, the processor generates an environment factor analysis signal and sends the environment factor analysis signal to the environment factor analysis unit, and the environment factor analysis unit analyzes the corresponding influence data after receiving the environment factor analysis signal and judges whether the influence data are influenced by the environment, so that the control efficiency and accuracy of the influence data are improved, and the abnormal operation process of the offshore power grid caused by the environment influence is prevented, so that the operation efficiency of the offshore power grid is reduced;
acquiring environmental factors corresponding to each fault time point, wherein the environmental factors comprise environmental data such as environmental temperature, environmental humidity and the like, the environmental data such as the environmental temperature, the environmental humidity and the like are subdata of the environmental factors, acquiring the floating frequency of the subdata in the environmental factors influencing data abnormality corresponding to each fault time point, and marking the floating frequency of the subdata in the environmental factors influencing data abnormality corresponding to each fault time point as FPL; acquiring the number of the corresponding fault time points of the sub data floating in the environmental factors, and marking the number of the corresponding fault time points of the sub data floating in the environmental factors as DGZ; acquiring the probability of successful equipment maintenance corresponding to the fault time point when the environmental factor internal subdata continuously floats, and marking the probability of successful equipment maintenance corresponding to the fault time point when the environmental factor internal subdata continuously floats as CGL;
by the formula
Acquiring an analysis coefficient C of the influence data of the fault time point corresponding to the environmental factors, wherein s1, s2 and s3 are all preset proportionality coefficients, s1 is more than s2 is more than s3 is more than 0, and beta is an error correction factor and takes the value of 1.36; comparing an environmental factor analysis coefficient C corresponding to the influence data of the fault time point with an environmental factor analysis coefficient threshold value:
if the environmental factor analysis coefficient C corresponding to the influence data of the fault time point exceeds an environmental factor analysis coefficient threshold value, judging that the corresponding influence data is influenced by the environmental factors, generating an environmental influence signal and sending the environmental influence signal to a processor, and after the processor receives the environmental influence signal, taking environmental mortgage as a maintenance preferred direction when the corresponding influence data is maintained as a maintenance object; if the environmental factor analysis coefficient C corresponding to the influence data of the fault time point does not exceed the environmental factor analysis coefficient threshold, judging that the corresponding influence data is not influenced by the environmental factors, generating an environmental no-influence signal and sending the environmental no-influence signal to the processor;
the processor generates a fault-tolerant control analysis signal and sends the fault-tolerant control analysis signal to the equipment fault-tolerant control analysis unit, the equipment fault-tolerant control analysis unit analyzes the fault-tolerant control of the corresponding circuit breaker after receiving the fault-tolerant control analysis signal, judges whether the fault-tolerant control of the circuit breaker is qualified or not, prevents the fault-tolerant control force from being too low, causes the accident of the offshore power grid due to the untimely operation of the circuit breaker, and simultaneously prevents the fault-tolerant control force from being too high, causes the circuit breaker to operate too frequently, reduces the operation efficiency of the offshore power grid, increases the operation intensity of the circuit breaker and reduces the operation life of the circuit breaker;
marking real-time operation influencing data as a risk execution event, namely when the influence data is voltage, regulating and controlling the voltage to be the risk execution event; acquiring interval duration of the execution time of the risk execution event and the operation time of the circuit breaker, and marking the interval duration of the execution time of the risk execution event and the operation time of the circuit breaker as SC; acquiring a risk execution event corresponding to the operation time of the circuit breaker to enable the risk execution event to affect a data floating value, and marking the risk execution event corresponding to the operation time of the circuit breaker to enable the data floating value to be FD; acquiring the execution times of the risk execution events corresponding to the operation time of the circuit breaker, and marking the execution times of the risk execution events corresponding to the operation time of the circuit breaker as CS;
by the formula
Acquiring a fault-tolerant control analysis coefficient X of the circuit breaker, wherein v1, v2 and v3 are all preset proportionality coefficients, and v1 is greater than v2 is greater than v3 is greater than 0;
comparing the fault-tolerant control analysis coefficient X of the circuit breaker with a fault-tolerant control analysis coefficient threshold range:
if the fault-tolerant control analysis coefficient X of the circuit breaker exceeds the fault-tolerant control analysis coefficient threshold range, judging that the fault-tolerant control intensity of the corresponding circuit breaker is low, generating a fault-tolerant control low-intensity signal and sending the fault-tolerant control low-intensity signal to a processor, and after receiving the fault-tolerant control low-intensity signal, the processor strengthens the fault-tolerant control of the corresponding circuit breaker, so that the execution times of risk execution events or control influence data floating values are reduced;
if the fault-tolerant control analysis coefficient X of the circuit breaker is lower than the fault-tolerant control analysis coefficient threshold range, judging that the fault-tolerant control strength of the corresponding circuit breaker is high, generating a fault-tolerant control high-strength signal and sending the fault-tolerant control high-strength signal to a processor, and after receiving the fault-tolerant control high-strength signal, the processor adjusts the fault tolerance of the corresponding circuit breaker, so that the executable quantity of risk execution events is increased or the influence data floating value is increased;
if the fault-tolerant control analysis coefficient X of the circuit breaker is in the fault-tolerant control analysis coefficient threshold range, judging that the fault-tolerant control strength of the corresponding circuit breaker is qualified, generating a fault-tolerant control qualified signal and sending the fault-tolerant control qualified signal to a processor;
the processor generates a control rationality analysis signal and sends the control rationality analysis signal to the control rationality analysis unit, and the control rationality analysis unit performs rationality analysis on the control of the circuit breaker after receiving the control rationality analysis signal and analyzes whether the remote control of the circuit breaker is rational or not, so that the operation efficiency of the circuit breaker is detected, and the reduction of the operation efficiency of the offshore power grid caused by the unqualified remote control efficiency of the circuit breaker is prevented;
the method comprises the following steps of collecting the fault rate of the offshore power grid after the remote control of the circuit breaker and the buffer duration of the remote control of the circuit breaker, and comparing the fault rate of the offshore power grid after the remote control of the circuit breaker and the buffer duration of the remote control of the circuit breaker with a fault rate threshold and a buffer duration threshold respectively:
if the fault rate of the offshore power grid exceeds the fault rate threshold value after the circuit breaker is remotely controlled, or the buffering time length of the remote control of the circuit breaker exceeds the buffering time length threshold value, judging that the rationality of the corresponding remote control of the circuit breaker is low, generating a rationality abnormal signal and sending the rationality abnormal signal to a processor; if the fault rate of the offshore power grid does not exceed the fault rate threshold value after the circuit breaker is remotely controlled and the buffering time length of the remote control of the circuit breaker does not exceed the buffering time length threshold value, judging that the reasonability of the corresponding circuit breaker is high, generating a reasonability normal signal and sending the reasonability normal signal to the processor;
after the processor receives the rationality abnormal signal, the buffer time of the remote control of the circuit breaker is controlled, and meanwhile the control time is advanced, so that the time length of the risk operation of the offshore power grid is prevented from being increased.
The formulas are obtained by acquiring a large amount of data and performing software simulation, and the coefficients in the formulas are set by the technicians in the field according to actual conditions;
when the marine power grid analysis system is used, the operation process of the marine power grid is analyzed through the power grid influence data analysis unit, influence data and non-influence data in the marine power grid are obtained through analysis, corresponding influence data are analyzed through the environmental factor analysis unit, whether the influence data are influenced by the environment is judged, the analysis coefficient of the environmental factor corresponding to the influence data is obtained through environmental analysis, and an environmental influence signal and an environmental non-influence signal are generated through analysis of the analysis coefficient of the environmental factor corresponding to the influence data; analyzing the fault-tolerant control of the corresponding circuit breaker by an equipment fault-tolerant control analysis unit, judging whether the fault-tolerant control of the circuit breaker is qualified or not, acquiring a fault-tolerant control analysis coefficient of the circuit breaker, comparing the fault-tolerant control analysis coefficient to generate a fault-tolerant control low-intensity signal, a fault-tolerant control high-intensity signal and a fault-tolerant control qualified signal, and performing fault-tolerant control according to signals of different types; carry out rationality analysis through control rationality analysis unit to the control of circuit breaker, whether analysis goes out circuit breaker remote control reasonable, generates rationality abnormal signal and rationality normal signal through data analysis to send it to the treater.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides a marine electric wire netting low voltage circuit breaker remote control device which characterized in that, includes the treater, and treater communication connection has:
analyzing the operation process of the offshore power grid through a power grid influence data analysis unit, analyzing influence data and non-influence data in the offshore power grid, analyzing corresponding influence data through an environmental factor analysis unit, judging whether the influence data are influenced by the environment or not, analyzing the environmental factors corresponding to the influence data through the environment to obtain an environmental factor analysis coefficient corresponding to the influence data, and analyzing the environmental factor analysis coefficient corresponding to the influence data to generate an environmental influence signal and an environmental non-influence signal;
analyzing the fault-tolerant control of the corresponding circuit breaker by an equipment fault-tolerant control analysis unit, judging whether the fault-tolerant control of the circuit breaker is qualified or not, acquiring a fault-tolerant control analysis coefficient of the circuit breaker, comparing the fault-tolerant control analysis coefficient to generate a fault-tolerant control low-intensity signal, a fault-tolerant control high-intensity signal and a fault-tolerant control qualified signal, and performing fault-tolerant control according to signals of different types; carry out rationality analysis through control rationality analysis unit to the control of circuit breaker, whether analysis goes out circuit breaker remote control reasonable, generates rationality abnormal signal and rationality normal signal through data analysis to send it to the treater.
2. The offshore power grid low voltage circuit breaker remote control device as claimed in claim 1, wherein the operation process of the power grid influence data analysis unit is as follows:
collecting a historical operation time period of the offshore power grid, dividing the historical operation time period into i sub-time points, wherein i is a natural number greater than 1, and collecting parameter data of the offshore power grid;
acquiring sub time points of the offshore power grid for maintenance in the historical operation time period, marking the corresponding sub time points as fault time points, acquiring the floating frequency of the corresponding parameter data of the fault time points and the probability of controlling the corresponding parameter data of the fault time points, and comparing the floating frequency with the floating frequency threshold and the control probability threshold respectively:
if the floating frequency of the parameter data corresponding to the fault time point exceeds a floating frequency threshold value or the probability of controlling the parameter data corresponding to the fault time point exceeds a control probability threshold value, marking the corresponding parameter data as influence data; if the floating frequency of the parameter data corresponding to the fault time point does not exceed the floating frequency threshold value and the probability of controlling the parameter data corresponding to the fault time point does not exceed the control probability threshold value, marking the corresponding parameter data as non-influence data; the impact data and non-impact data are sent to a processor.
3. The remote control device for the low-voltage circuit breaker of the offshore power grid as claimed in claim 1, wherein the environmental factor analysis unit operates as follows:
acquiring the environmental factors corresponding to each fault time point, and acquiring the floating frequency of the subdata in the environmental factors when the influence of each fault time point on the data abnormity appears, the number of the fault time points corresponding to the time point of the subdata floating in the environmental factors and the successful maintenance probability of the equipment corresponding to the fault time point when the subdata in the environmental factors continuously float;
analyzing and obtaining an analysis coefficient of environmental factors corresponding to the influence data of the fault time point; comparing the environmental factor analysis coefficient corresponding to the influence data of the fault time point with an environmental factor analysis coefficient threshold value:
if the environmental factor analysis coefficient corresponding to the influence data of the fault time point exceeds the environmental factor analysis coefficient threshold value, judging that the corresponding influence data is influenced by the environmental factors, generating an environmental influence signal and sending the environmental influence signal to the processor; and if the environmental factor analysis coefficient corresponding to the influence data of the fault time point does not exceed the environmental factor analysis coefficient threshold, judging that the corresponding influence data is not influenced by the environmental factor, generating an environmental no-influence signal and sending the environmental no-influence signal to the processor.
4. The remote control device for the low-voltage circuit breaker of the offshore power grid as claimed in claim 1, wherein the equipment fault-tolerant control analysis unit operates as follows:
marking real-time operation influencing data as a risk execution event, namely when the influence data is voltage, regulating and controlling the voltage to be the risk execution event; acquiring the interval duration between the execution time of the risk execution event and the operation time of the circuit breaker, the influence data floating value of the risk execution event corresponding to the operation time of the circuit breaker and the execution times of the risk execution event corresponding to the operation time of the circuit breaker; acquiring a fault-tolerant control analysis coefficient of the circuit breaker through analysis; comparing the fault-tolerant control analysis coefficient of the circuit breaker with a threshold range of the fault-tolerant control analysis coefficient:
if the fault-tolerant control analysis coefficient of the circuit breaker exceeds the fault-tolerant control analysis coefficient threshold range, judging that the fault-tolerant control intensity of the corresponding circuit breaker is low, generating a fault-tolerant control low-intensity signal and sending the fault-tolerant control low-intensity signal to a processor, and after receiving the fault-tolerant control low-intensity signal, the processor strengthens the fault-tolerant control of the corresponding circuit breaker, so that the execution times of risk execution events or control influence data floating values are reduced;
if the fault-tolerant control analysis coefficient of the circuit breaker is lower than the fault-tolerant control analysis coefficient threshold range, judging that the fault-tolerant control strength of the corresponding circuit breaker is high, generating a fault-tolerant control high-strength signal and sending the fault-tolerant control high-strength signal to a processor, and after receiving the fault-tolerant control high-strength signal, the processor adjusts the fault tolerance of the corresponding circuit breaker, so that the executable quantity of risk execution events is increased or the influence data floating value is increased;
and if the fault-tolerant control analysis coefficient of the circuit breaker is in the fault-tolerant control analysis coefficient threshold range, judging that the fault-tolerant control strength of the corresponding circuit breaker is qualified, generating a fault-tolerant control qualified signal and sending the fault-tolerant control qualified signal to the processor.
5. The offshore power grid low-voltage circuit breaker remote control device according to claim 1, characterized in that the operation process of the control rationality analysis unit is as follows:
the method comprises the following steps of collecting the fault rate of the offshore power grid after the remote control of the circuit breaker and the buffer duration of the remote control of the circuit breaker, and comparing the fault rate with a fault rate threshold and a buffer duration threshold respectively:
if the fault rate of the offshore power grid exceeds the fault rate threshold value after the circuit breaker is remotely controlled, or the buffering time length of the remote control of the circuit breaker exceeds the buffering time length threshold value, judging that the rationality of the corresponding remote control of the circuit breaker is low, generating a rationality abnormal signal and sending the rationality abnormal signal to a processor;
if the fault rate of the offshore power grid does not exceed the fault rate threshold value after the remote control of the circuit breaker, and the buffering time length of the remote control of the circuit breaker does not exceed the buffering time length threshold value, the reasonability of the corresponding remote control of the circuit breaker is judged to be high, and reasonability normal signals are generated and sent to the processor.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115663878A (en) * | 2022-12-15 | 2023-01-31 | 国网山东省电力公司济南供电公司 | Converter operation control system for direct-current power distribution control system |
| CN115759521A (en) * | 2022-09-19 | 2023-03-07 | 河南城建学院 | Big data-based offshore wind turbine operation fault prediction system |
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| CN115759521A (en) * | 2022-09-19 | 2023-03-07 | 河南城建学院 | Big data-based offshore wind turbine operation fault prediction system |
| CN115663878A (en) * | 2022-12-15 | 2023-01-31 | 国网山东省电力公司济南供电公司 | Converter operation control system for direct-current power distribution control system |
| CN115663878B (en) * | 2022-12-15 | 2023-04-25 | 国网山东省电力公司济南供电公司 | DC power distribution control system-oriented converter operation control system |
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