CN111554078B - Take monitoring wisdom distribution equipment terminal is put in office - Google Patents
Take monitoring wisdom distribution equipment terminal is put in office Download PDFInfo
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- CN111554078B CN111554078B CN202010346366.XA CN202010346366A CN111554078B CN 111554078 B CN111554078 B CN 111554078B CN 202010346366 A CN202010346366 A CN 202010346366A CN 111554078 B CN111554078 B CN 111554078B
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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Abstract
The invention discloses an intelligent power distribution equipment terminal with partial discharge monitoring, which comprises a data acquisition module, a data analysis module, a signal discrimination module, a controller, a display recording module, a display screen, a collection feedback module and a data interconnection module, wherein the data acquisition module is used for acquiring a data signal; the invention combines the switch working condition, the electric power operation condition and the electromagnetic interference condition of the distribution equipment terminal, obtains the use safety condition of the comprehensive distribution equipment terminal through internal formulation, assignment analysis and external integral weighting treatment, and calls the detail depth condition of each area of the distribution equipment terminal according to the use safety condition to carry out modification formula analysis and hierarchical comparison treatment on the distribution equipment terminal to obtain the detailed management supervision condition of each area of the distribution equipment terminal, thereby greatly improving the discrimination precision of the use safety of the distribution equipment terminal and the detailed management supervision degree of each area, and achieving the effects of wide range, precise discrimination and fine supervision.
Description
Technical Field
The invention relates to the technical field of power distribution equipment terminals, in particular to an intelligent power distribution equipment terminal with partial discharge monitoring.
The high-voltage transmission equipment is a kind of equipment which can boost and transmit the voltage output by the generator through the transformer of the power plant, the transmission mode can reduce the current during power transmission under the condition of the same transmission power so as to reduce the heat loss caused by the current and reduce the material cost of long-distance power transmission, and the associated electrical equipment comprises a reactor, a circuit breaker, a mutual inductor, a lightning arrester, a coupling capacitor and the like.
In the file with the publication number of CN108551210A, smooth development of services such as operation, maintenance, and overhaul of 500kV power transmission and transformation equipment is ensured only according to panoramic state perception of a 500kV power grid and by telemetry information, remote signaling information, and relay protection and fault recording information collected by operators, and a monitoring center automation system with a public information platform as a core includes subsystems such as a centralized control SCADA system, a relay protection and fault information management system, and a power transmission line fault location system, so that it interacts with a provincial dispatching EMS system to realize rapid initialization of automation of the centralized control center; meanwhile, the system is also subjected to information interaction with an asset management system, an operation management system and the like to support optimized asset management analysis application, and is combined with the existing intelligent monitoring system of high-voltage transmission equipment based on big data
Background
The distribution equipment terminal is an important component of distribution automation construction, is mainly applied to a 10kV overhead line, completes the operation detection and monitoring functions of a distribution line, realizes the real-time monitoring of equipment such as a ring main unit, a column switch, a distribution transformer, a capacitor and the like of a 10kV or 20kV distribution network, acquires the operation data and the faults of the distribution network and the operation working conditions of switch equipment in real time, uploads information and receives control commands through means such as wired or wireless communication and the like so as to realize the uninterrupted power supply of a power supply.
In the file with the publication number of CN107316133A, local discharge data of the site is collected only according to the internet of things local discharge live detection data platform and the GPS fusion system, and effective data is sent to the local discharge database platform, and the local discharge diagnosis and analysis system performs accurate positioning, defect type diagnosis and state evaluation operations on the device; the method is combined with the existing intelligent distribution equipment terminal with partial discharge monitoring, the existing method only carries out surface layer simple discrimination and processing on the use safety condition of the distribution equipment terminal according to the single transmission condition of the distribution equipment terminal, but is difficult to combine the switch working condition, the electric power running condition and the electromagnetic interference condition of the distribution equipment terminal with the internal fine analysis and the external integrated processing, and calls the detail depth condition of each area of the distribution equipment terminal according to the obtained use safety condition of the comprehensive distribution equipment terminal to carry out correction formula analysis and hierarchical comparison processing on the distribution equipment terminal, and then obtains the detailed management supervision condition of each area of the distribution equipment terminal, thereby achieving the effects of wide range, fine discrimination and fine supervision;
in order to solve the above-mentioned drawbacks, a technical solution is now provided.
Disclosure of Invention
The invention aims to provide an intelligent distribution equipment terminal with partial discharge monitoring, which combines the switch working condition, the electric power running condition and the electromagnetic interference condition of the distribution equipment terminal, obtains the use safety condition of the comprehensive distribution equipment terminal through internal formulation, assignment analysis and external integral weighting treatment, and obtains the detail depth condition of each area of the distribution equipment terminal according to the use safety condition, so as to carry out correction formula analysis and hierarchical comparison treatment on the detail depth condition, obtain the detailed maintenance management condition of each area of the distribution equipment terminal, greatly improve the discrimination precision of the use safety of the distribution equipment terminal, and the detail maintenance management monitoring degree of each area, and achieve the effects of wide range, precise discrimination and fine supervision.
The technical problems to be solved by the invention are as follows:
how to pass through an effective mode, solve the present mostly only according to the single transmission situation of distribution equipment terminal, come to carry out the simple judgement and processing on its safety in utilization condition, and be difficult to with the switch operating condition, electric power operation situation and the electromagnetic interference situation of distribution equipment terminal, through inside careful analysis and outside integrated processing combine together, and according to the safety in utilization condition of the comprehensive distribution equipment terminal that reachs, the detail degree of depth situation of each region of this distribution equipment terminal is transferred, come to carry out revise formula analysis and layering comparison processing to it, reachs the maintenance management supervision condition of each region of this distribution equipment terminal of detail again, reach the problem of the effect of "wide range, accurate judgement, fine supervision".
The purpose of the invention can be realized by the following technical scheme:
an intelligent power distribution equipment terminal with partial discharge monitoring comprises a data acquisition module, a data analysis module, a signal discrimination module, a controller, a display recording module, a display screen, a collection feedback module and a data interconnection module;
the data acquisition module is used for acquiring power distribution working condition information of the power distribution equipment terminal in real time and transmitting the power distribution working condition information to the data analysis module;
the data analysis module carries out power distribution safety monitoring analysis operation on the data analysis module according to the data to obtain power distribution safety coefficients Ei of all power distribution equipment terminals in a first time level, and transmits the power distribution safety coefficients Ei to the signal judgment module;
the signal judging module compares the power distribution safety coefficient Ei of each power distribution equipment terminal in the first time level with a preset range e, when the power distribution safety coefficient Ei is larger than the maximum value of the preset range e and is positioned in the preset range e, the signal judging module respectively generates a detail calling signal and a warning recording signal for the power distribution equipment terminal corresponding to the Ei, and when the power distribution safety coefficient Ei is smaller than the minimum value of the preset range e, the signal judging module does not generate any signal for transmission, transmits the warning recording signal to the display recording module through the controller, and transmits the detail calling signal to the collection feedback module through the controller;
the model of the controller is Siemens S7-400;
the display recording module records the power distribution equipment terminal corresponding to the warning recording signal according to the warning recording signal, when the recording times of the power distribution equipment terminal are out of the threshold range, the power distribution equipment terminal is sent to the display screen, and when the recording times of the power distribution equipment terminal are in the threshold range, no information is sent;
and the model of the display screen is Otto AL 55V-A;
the collection feedback module is used for collecting the detail discrimination information of each region of the power distribution equipment terminal in real time, and after receiving the real-time detail calling signal, the collection feedback module calls the detail discrimination information of each region of the power distribution equipment terminal corresponding to the collection feedback module according to the detail discrimination information, carries out detail monitoring analysis operation on the detail discrimination information, obtains a real-time maintenance signal and a real-time supervision observation signal, and transmits the real-time maintenance signal and the real-time supervision observation signal to the data interconnection module;
the data interconnection module sends the area of the power distribution equipment terminal corresponding to the monitoring observation signal to the supervision personnel mobile phone according to the area, and the supervision personnel mobile phone is communicated with the data interconnection module in a wireless transmission mode and the like; the data interconnection module edits a text of ' severe maintenance pipe and deep interference ' in the area of the power distribution equipment terminal corresponding to the maintenance and repair signal and sends the text to a display screen, further combines the switch working condition, the electric power running condition and the electromagnetic interference condition of the power distribution equipment terminal, obtains the use safety condition of the comprehensive power distribution equipment terminal through internal formulation, assignment analysis and external overall weighting treatment, and calls the detailed depth condition of each area of the power distribution equipment terminal according to the text to carry out modification formula analysis and hierarchical comparison treatment on the detailed depth condition so as to obtain the detailed maintenance pipe supervision condition of each area of the power distribution equipment terminal, thereby greatly improving the discrimination accuracy of the use safety of the power distribution equipment terminal and the detailed maintenance pipe supervision degree of each area of the power distribution equipment terminal, and achieving ' wide-range and precise discrimination, Fine supervision.
Furthermore, the power distribution condition information of the power distribution equipment terminal consists of switch work information of the power distribution equipment terminal, electric power operation information of the power distribution equipment terminal and electromagnetic interference monitoring data of the power distribution equipment terminal; the switch work information at the distribution equipment terminal is switched the number by on-off state and is switched time, switch and open time length and switch and open the number and constitute, the electric power operation information at the distribution equipment terminal comprises total variation of circuit voltage and total variation of circuit operating temperature, and above-mentioned all kinds of data, information all acquire according to modes such as sensor, monitoring instrument and obtain.
Further, the specific steps of the power distribution safety monitoring and analyzing operation are as follows:
the method comprises the following steps: acquiring power distribution working condition information of power distribution equipment terminals in a first time level, and respectively marking the switching work information of each power distribution equipment terminal, the electric power operation information of each power distribution equipment terminal and the electromagnetic interference monitoring data of each power distribution equipment terminal as Zi, Xi and Ci, wherein i is 1.
Step two a: respectively marking the switching times, the switching opening duration and the switching opening number of the switching states corresponding to the switching work information Zi of each distribution equipment terminal as Ai, Si and Di, wherein i is 1.. n, and Ai, Si and Di are in one-to-one correspondence with each other; and according to the formula
i＝1...n，Obtaining switch work information Zi of each distribution equipment terminal in the first time level, wherein a, s and d are weighing factors, a is smaller than s and smaller than d, and a + s + d is 3.5821;
step two b: marking the total circuit voltage variation and the total circuit working temperature variation corresponding to the electric power operation information Xi of each power distribution equipment terminal as Qi and Wi respectively, wherein i is 1.. n, and Qi and Wi are in one-to-one correspondence with each other; when the total circuit voltage variation Qi of each power distribution equipment terminal is larger than the maximum value of the preset range q, is located in the preset range q and is smaller than the minimum value of the preset range q, the total circuit voltage variation Qi is respectively endowed with calibration positive values M1, M2 and M3, M1 is larger than M2 and is larger than M3, when the total circuit working temperature variation Wi of each power distribution equipment terminal is larger than the maximum value of the preset range w, is located in the preset range w and is smaller than the minimum value of the preset range w, the total circuit working temperature variation Wi is respectively endowed with the calibration positive values N1, N2 and N3, and N1 is larger than N2 and is larger than N3; obtaining electric power operation information Xi of each power distribution equipment terminal in a first time level according to a formula Xi + Qi, i 1.. n;
step three: firstly, respectively giving weighting coefficients z, x and c to switch work information Zi of each power distribution equipment terminal, power operation information Xi of each power distribution equipment terminal and electromagnetic interference monitoring data Ci of each power distribution equipment terminal, wherein x is larger than z and larger than c, and z + x + c is 4.5221, and then according to a formula
And (e) obtaining the power distribution safety coefficient Ei of each power distribution equipment terminal in the first time level, wherein delta is a safety factor and takes the value of 2.5529.
Furthermore, the detailed judgment information of each region of the power distribution equipment terminal is obtained by the total electric field intensity of each region of the power distribution equipment terminal, the total current value of each region of the power distribution equipment terminal and the total local volume of each region of the power distribution equipment terminal, and the various data and information are obtained according to the modes of a sensor, a monitoring instrument and the like.
Further, the detail monitoring and analyzing operation comprises the following specific steps:
the method comprises the following steps: acquiring detail judgment information of each region of the power distribution equipment terminal in real time, and respectively marking the total electric field intensity of each region of the power distribution equipment terminal, the total current value of each region of the power distribution equipment terminal and the total local volume of each region of the power distribution equipment terminal corresponding to the detail judgment information as Lj, Kj and Jj, wherein j is 1.
Step two: according to the formula
M, obtaining real-time discharge interference indexes Hj of each region of the distribution equipment terminal, wherein l, k and sigma are correction factors, sigma is larger than l and larger than k, and sigma + l + k is 2.6582, rho, epsilon and mu are interference coefficients, rho is smaller than mu and smaller than epsilon, and rho + mu + epsilon is 5.3228;
step three: comparing the real-time discharge interference index Hj of each area of the power distribution equipment terminal with a preset value h, generating a maintenance signal with the area of the power distribution equipment terminal when the discharge interference index Hj is greater than the preset value h, and generating a supervision observation signal with the area of the power distribution equipment terminal when the discharge interference index Hj is less than or equal to the preset value h.
The invention has the beneficial effects that:
the invention collects the power distribution condition information of the power distribution equipment terminals in real time, and carries out the power distribution safety monitoring analysis operation on the power distribution equipment terminals according to the power distribution condition information, namely, firstly, the switch working information of each power distribution equipment terminal, the electric power running information of each power distribution equipment terminal and the electromagnetic interference monitoring data of each power distribution equipment terminal are calibrated for the first time, then the switch state switching times, the switch opening time length and the switch opening number corresponding to the switch working information Zi of each power distribution equipment terminal are calibrated for the second time and are analyzed in a formula way, the total circuit voltage variation and the total circuit working temperature variation corresponding to the electric power running information Xi of each power distribution equipment terminal are calibrated for the second time and are analyzed in an assignment way, and finally, the switch working information Zi of each power distribution equipment terminal, the electric power running information Xi of each power distribution equipment terminal and the electromagnetic interference monitoring data Ci of each power distribution equipment terminal which are obtained by the refinement processing are subjected to the integral weight analysis together, obtaining a power distribution safety coefficient Ei of each power distribution equipment terminal in a first time level;
comparing the power distribution safety coefficient Ei of each power distribution equipment terminal in the first time level with a preset range e, when the power distribution safety coefficient Ei is larger than the maximum value of the preset range e and is positioned in the preset range e, respectively generating a detail calling signal and a warning recording signal for the power distribution equipment terminal corresponding to the Ei, recording the power distribution equipment terminal corresponding to the warning recording signal, and when the recording times of the power distribution equipment terminal are positioned outside the threshold range, transmitting the power distribution equipment terminal to a display screen;
meanwhile, the detail judgment information of each area of the power distribution equipment terminal is collected in real time, the detail judgment information of each area of the power distribution equipment terminal corresponding to the detail judgment information is called according to the detail calling signal, the detail monitoring and analyzing operation is carried out on the detail judgment information, namely the total electric field intensity of each area of the power distribution equipment terminal, the total current value of each area of the power distribution equipment terminal and the total local discharge quantity of each area of the power distribution equipment terminal are calibrated, and then the correction formula analysis and the layering comparison processing are carried out on the detail judgment and analysis information, so that a real-time maintenance and repair signal and a real-time observation signal are obtained;
the area of the power distribution equipment terminal corresponding to the supervision observation signal is sent to a mobile phone of a supervisor, a text of 'heavy maintenance management and deep interference' is edited in the area of the power distribution equipment terminal corresponding to the maintenance and overhaul signal and is sent to a display screen, the switch working condition, the electric power running condition and the electromagnetic interference condition of the power distribution equipment terminal are combined, the comprehensive use safety condition of the power distribution equipment terminal is obtained through internal formulation, assignment analysis and external overall weighting treatment, the detailed depth condition of each area of the power distribution equipment terminal is called according to the text to carry out correction formula analysis and hierarchical comparison treatment on the detailed use safety condition, the detailed maintenance management condition of each area of the power distribution equipment terminal is obtained, the discrimination precision of the use safety of the power distribution equipment terminal is greatly improved, and the detailed maintenance management supervision degree of each area is greatly improved, the effects of wide range, precise discrimination and fine supervision are achieved.
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 block diagram of the system of the present invention.
Detailed Description
As shown in fig. 1, an intelligent power distribution equipment terminal with partial discharge monitoring includes a data acquisition module, a data analysis module, a signal discrimination module, a controller, a display recording module, a display screen, a collection feedback module, and a data interconnection module;
the data acquisition module is used for acquiring power distribution condition information of the power distribution equipment terminal in real time, and the power distribution condition information of the power distribution equipment terminal consists of switching work information of the power distribution equipment terminal, electric power operation information of the power distribution equipment terminal and electromagnetic interference monitoring data of the power distribution equipment terminal; the switch working information of the power distribution equipment terminal consists of switch state switching times, switch opening duration and switch opening number, and the electric power operation information of the power distribution equipment terminal consists of circuit voltage total variation and circuit working temperature total variation and is transmitted to the data analysis module;
the data analysis module carries out power distribution safety monitoring analysis operation on the data analysis module according to the data, and the specific steps are as follows:
the method comprises the following steps: acquiring power distribution working condition information of power distribution equipment terminals in a first time level, and respectively marking the switching work information of each power distribution equipment terminal, the electric power operation information of each power distribution equipment terminal and the electromagnetic interference monitoring data of each power distribution equipment terminal as Zi, Xi and Ci, wherein i is 1.
Step two a: respectively marking the switching times, the switching opening duration and the switching opening number of the switching states corresponding to the switching work information Zi of each distribution equipment terminal as Ai, Si and Di, wherein i is 1.. n, and Ai, Si and Di are in one-to-one correspondence with each other; and according to the formula
N, obtaining switching work information Zi of each distribution equipment terminal in the first time level, wherein a, s and d are all weighing factors, a is smaller than s and smaller than d, and a + s + d is 3.5821;
step two b: marking the total circuit voltage variation and the total circuit working temperature variation corresponding to the electric power operation information Xi of each power distribution equipment terminal as Qi and Wi respectively, wherein i is 1.. n, and Qi and Wi are in one-to-one correspondence with each other; when the total circuit voltage variation Qi of each power distribution equipment terminal is larger than the maximum value of the preset range q, is located in the preset range q and is smaller than the minimum value of the preset range q, the total circuit voltage variation Qi is respectively endowed with calibration positive values M1, M2 and M3, M1 is larger than M2 and is larger than M3, when the total circuit working temperature variation Wi of each power distribution equipment terminal is larger than the maximum value of the preset range w, is located in the preset range w and is smaller than the minimum value of the preset range w, the total circuit working temperature variation Wi is respectively endowed with the calibration positive values N1, N2 and N3, and N1 is larger than N2 and is larger than N3; obtaining electric power operation information Xi of each power distribution equipment terminal in a first time level according to a formula Xi + Qi, i 1.. n;
step three: firstly, respectively giving weighting coefficients z, x and c to switch work information Zi of each power distribution equipment terminal, power operation information Xi of each power distribution equipment terminal and electromagnetic interference monitoring data Ci of each power distribution equipment terminal, wherein x is larger than z and larger than c, and z + x + c is 4.5221, and then according to a formula
N, solving the power distribution safety factors Ei of each power distribution equipment terminal in the first time level, wherein delta is a safety factor and takes the value of 2.5529;
the power distribution safety coefficients Ei of all the power distribution equipment terminals in the first time level are obtained and transmitted to the signal judging module;
the signal discrimination module compares the distribution safety coefficient Ei of each distribution equipment terminal in the first time level with a preset range e, when the distribution safety coefficient Ei is larger than the maximum value of the preset range e and is positioned in the preset range e, the signal discrimination module respectively generates a detail calling signal and a warning recording signal for the distribution equipment terminal corresponding to the Ei, and when the distribution safety coefficient Ei is smaller than the minimum value of the preset range e, the signal discrimination module does not generate any signal for transmission, transmits the warning recording signal to the display recording module through the controller, and transmits the detail calling signal to the collection feedback module through the controller;
the model of the controller is Siemens S7-400;
the display recording module records the power distribution equipment terminal corresponding to the warning recording signal according to the warning recording signal, when the recording times of the power distribution equipment terminal are out of the threshold range, the power distribution equipment terminal is sent to the display screen, and when the recording times of the power distribution equipment terminal are in the threshold range, no information is sent;
and the model of the display screen is Otto AL 55V-A;
the collecting feedback module is used for collecting the detail discrimination information of each area of the distribution equipment terminal in real time, the detail discrimination information of each area of the distribution equipment terminal is composed of the total electric field intensity of each area of the distribution equipment terminal, the total current value of each area of the distribution equipment terminal and the total placement quantity of each area of the distribution equipment terminal, and after the collecting feedback module receives the real-time detail calling signal, the detail discrimination information of each area of the distribution equipment terminal corresponding to the collecting feedback module is called according to the total electric field intensity, and the detail monitoring analysis operation is carried out on the detail discrimination information, and the specific steps are as follows:
the method comprises the following steps: acquiring detail judgment information of each region of the power distribution equipment terminal in real time, and respectively marking the total electric field intensity of each region of the power distribution equipment terminal, the total current value of each region of the power distribution equipment terminal and the total local volume of each region of the power distribution equipment terminal corresponding to the detail judgment information as Lj, Kj and Jj, wherein j is 1.
Step two: according to the formula
M, obtaining real-time discharge interference indexes Hj of each region of the distribution equipment terminal, wherein l, k and sigma are correction factors, sigma is larger than l and larger than k, sigma + l + k is 2.6582, rho, epsilon and mu are interference coefficients, and rho is smaller than rhoμ is less than ∈andρ + μ + ∈ 5.3228;
step three: comparing the real-time discharge interference index Hj of each area of the power distribution equipment terminal with a preset value h, generating a maintenance signal with the area of the power distribution equipment terminal when the discharge interference index Hj is greater than the preset value h, and generating a supervision observation signal with the area of the power distribution equipment terminal when the discharge interference index Hj is less than or equal to the preset value h;
so as to obtain real-time maintenance and repair signals and supervision and observation signals, and transmit the signals to the data interconnection module together;
the data interconnection module sends the area of the power distribution equipment terminal corresponding to the monitoring observation signal to the supervision personnel mobile phone according to the area, and the supervision personnel mobile phone is communicated with the data interconnection module in a wireless transmission mode and the like; the data interconnection module edits a text of ' severe maintenance pipe and deep interference ' in the area of the power distribution equipment terminal corresponding to the maintenance and repair signal and sends the text to a display screen, and further combines the switch working condition, the electric power running condition and the electromagnetic interference condition of the power distribution equipment terminal, obtains the use safety condition of the comprehensive power distribution equipment terminal through internal formulation, assignment chemical analysis and external overall weighting treatment, and calls the detailed depth condition of each area of the power distribution equipment terminal according to the text to carry out modification formula analysis and layering comparison treatment on the detailed depth condition so as to obtain the detailed maintenance pipe supervision condition of each area of the power distribution equipment terminal, thereby greatly improving the discrimination precision of the use safety of the power distribution equipment terminal and the detailed maintenance pipe supervision degree of each area of the power distribution equipment terminal, and achieving ' wide-range and precise discrimination, Fine supervision.
In the working process, the power distribution working condition information of the power distribution equipment terminal is acquired in real time through a data acquisition module, and the power distribution working condition information of the power distribution equipment terminal consists of the switch working information of the power distribution equipment terminal, the power operation information of the power distribution equipment terminal and the electromagnetic interference monitoring data of the power distribution equipment terminal; the switch working information of the power distribution equipment terminal consists of switch state switching times, switch opening duration and switch opening number, and the electric power operation information of the power distribution equipment terminal consists of circuit voltage total variation and circuit working temperature total variation and is transmitted to the data analysis module;
the data analysis module carries out distribution safety monitoring analysis operation on the distribution equipment terminals, namely firstly calibrating the switch working information of each distribution equipment terminal, the electric power operation information of each distribution equipment terminal and the electromagnetic interference monitoring data of each distribution equipment terminal for the first time, secondly calibrating the switch state switching times, the switch opening time length and the switch opening number corresponding to the switch working information Zi of each distribution equipment terminal, carrying out formula analysis on the switch working information, secondly calibrating the total circuit voltage variation and the total circuit working temperature variation corresponding to the electric power operation information Xi of each distribution equipment terminal, carrying out assignment analysis on the circuit voltage variation and the total circuit working temperature variation, and finally carrying out integral weight analysis on the switch working information Zi of each distribution equipment terminal, the electric power operation information Xi of each distribution equipment terminal and the electromagnetic interference monitoring data Ci of each distribution equipment terminal which are obtained through the chemical treatment, obtaining the power distribution safety coefficient Ei of each power distribution equipment terminal in the first time level, and transmitting the power distribution safety coefficient Ei to the signal judging module;
the signal judging module compares the power distribution safety coefficient Ei of each power distribution equipment terminal in the first time level with a preset range e, and when the power distribution safety coefficient Ei is larger than the maximum value of the preset range e and is positioned in the preset range e, the signal judging module respectively generates a detail calling signal and a warning recording signal for the power distribution equipment terminal corresponding to the Ei, transmits the warning recording signal to the display recording module through the controller, and transmits the detail calling signal to the collection feedback module through the controller;
the display recording module records the power distribution equipment terminal corresponding to the warning recording signal according to the warning recording signal, and when the recording times of the power distribution equipment terminal are out of the threshold range, the display recording module sends the power distribution equipment terminal to a display screen;
the collecting feedback module collects the detail discrimination information of each area of the distribution equipment terminal in real time, the detail discrimination information of each area of the distribution equipment terminal is composed of the total electric field intensity of each area of the distribution equipment terminal, the total current value of each area of the distribution equipment terminal and the total placement quantity of each area of the distribution equipment terminal, and after the collecting feedback module receives the real-time detail calling signal, the detail discrimination information of each area of the distribution equipment terminal corresponding to the collecting feedback module is called according to the detail discrimination information, and the detail monitoring analysis operation is carried out on the detail discrimination information, namely the total electric field intensity of each area of the distribution equipment terminal, the total current value of each area of the distribution equipment terminal and the total placement quantity of each area of the distribution equipment terminal are calibrated, and then the correction formula analysis and the layering comparison processing are carried out on the calibration information to obtain the real-time maintenance signal and the supervision observation signal, transmitting the data and the data to a data interconnection module;
the data interconnection module sends the area of the power distribution equipment terminal corresponding to the monitoring observation signal to the supervision personnel mobile phone; the data interconnection module edits a text of ' severe maintenance pipe and deep interference ' in the area of the power distribution equipment terminal corresponding to the maintenance and repair signal and sends the text to a display screen, and further combines the switch working condition, the electric power running condition and the electromagnetic interference condition of the power distribution equipment terminal, obtains the use safety condition of the comprehensive power distribution equipment terminal through internal formulation, assignment chemical analysis and external overall weighting treatment, and calls the detailed depth condition of each area of the power distribution equipment terminal according to the text to carry out modification formula analysis and layering comparison treatment on the detailed depth condition so as to obtain the detailed maintenance pipe supervision condition of each area of the power distribution equipment terminal, thereby greatly improving the discrimination precision of the use safety of the power distribution equipment terminal and the detailed maintenance pipe supervision degree of each area of the power distribution equipment terminal, and achieving ' wide-range and precise discrimination, Fine supervision.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (1)
1. An intelligent power distribution equipment terminal with partial discharge monitoring is characterized by comprising a data acquisition module, a data analysis module, a signal discrimination module, a controller, a display recording module, a display screen, a collection feedback module and a data interconnection module;
the data acquisition module is used for acquiring power distribution working condition information of the power distribution equipment terminal in real time and transmitting the power distribution working condition information to the data analysis module;
the data analysis module carries out power distribution safety monitoring analysis operation on the data analysis module according to the data to obtain power distribution safety coefficients Ei of all power distribution equipment terminals in a first time level, and transmits the power distribution safety coefficients Ei to the signal judgment module;
the signal judging module compares the power distribution safety coefficient Ei of each power distribution equipment terminal in the first time level with a preset range e, and when the power distribution safety coefficient Ei is larger than the maximum value of the preset range e and is positioned in the preset range e, the signal judging module respectively generates a detail calling signal and a warning recording signal for the power distribution equipment terminal corresponding to the Ei, transmits the warning recording signal to the display recording module through the controller, and transmits the detail calling signal to the collection feedback module through the controller;
the display recording module records the power distribution equipment terminal corresponding to the warning recording signal according to the warning recording signal, and when the recording times of the power distribution equipment terminal are out of the threshold range, the display recording module sends the power distribution equipment terminal to a display screen;
the collection feedback module is used for collecting the detail discrimination information of each region of the power distribution equipment terminal in real time, and after receiving the real-time detail calling signal, the collection feedback module calls the detail discrimination information of each region of the power distribution equipment terminal corresponding to the collection feedback module according to the detail discrimination information, carries out detail monitoring analysis operation on the detail discrimination information, obtains a real-time maintenance signal and a real-time supervision observation signal, and transmits the real-time maintenance signal and the real-time supervision observation signal to the data interconnection module;
the data interconnection module sends the area of the power distribution equipment terminal corresponding to the monitoring observation signal to the supervision personnel mobile phone; the data interconnection module edits a text of 'severe maintenance management and deep interference' in the area of the power distribution equipment terminal corresponding to the maintenance and repair signal according to the text, and sends the text to the display screen;
the power distribution working condition information of the power distribution equipment terminal consists of switch working information of the power distribution equipment terminal, electric power operation information of the power distribution equipment terminal and electromagnetic interference monitoring data of the power distribution equipment terminal; the switch working information of the power distribution equipment terminal consists of switch state switching times, switch opening duration and switch opening number, and the electric power operation information of the power distribution equipment terminal consists of circuit voltage total variation and circuit working temperature total variation;
the specific steps of the power distribution safety monitoring and analyzing operation are as follows:
the method comprises the following steps: acquiring power distribution working condition information of power distribution equipment terminals in a first time level, and respectively marking the switching work information of each power distribution equipment terminal, the electric power operation information of each power distribution equipment terminal and the electromagnetic interference monitoring data of each power distribution equipment terminal as Zi, Xi and Ci, wherein i is 1.
Step two a: respectively marking the switching times, the switching opening duration and the switching opening number of the switching states corresponding to the switching work information Zi of each distribution equipment terminal as Ai, Si and Di, wherein i is 1.. n, and Ai, Si and Di are in one-to-one correspondence with each other; and according to the formula
Obtaining switch work information Zi of each distribution equipment terminal in the first time level, wherein a, s and d are weighing factors, a is smaller than s and smaller than d, and a + s + d is 3.5821;
step two b: marking the total circuit voltage variation and the total circuit working temperature variation corresponding to the electric power operation information Xi of each power distribution equipment terminal as Qi and Wi respectively, wherein i is 1.. n, and Qi and Wi are in one-to-one correspondence with each other; when the total circuit voltage variation Qi of each power distribution equipment terminal is larger than the maximum value of the preset range q, is located in the preset range q and is smaller than the minimum value of the preset range q, the total circuit voltage variation Qi is respectively endowed with calibration positive values M1, M2 and M3, M1 is larger than M2 and is larger than M3, when the total circuit working temperature variation Wi of each power distribution equipment terminal is larger than the maximum value of the preset range w, is located in the preset range w and is smaller than the minimum value of the preset range w, the total circuit working temperature variation Wi is respectively endowed with the calibration positive values N1, N2 and N3, and N1 is larger than N2 and is larger than N3; obtaining electric power operation information Xi of each power distribution equipment terminal in a first time level according to a formula Xi + Qi, i 1.. n;
step three: firstly, respectively giving weighting coefficients z, x and c to switch work information Zi of each power distribution equipment terminal, power operation information Xi of each power distribution equipment terminal and electromagnetic interference monitoring data Ci of each power distribution equipment terminal, wherein x is larger than z and larger than c, and z + x + c is 4.5221, and then according to a formula
Obtaining power distribution safety factors Ei and delta of each power distribution equipment terminal in the first time level as safety factors, wherein the value is 2.5529;
the detail judging information of each area of the power distribution equipment terminal comprises the total electric field intensity of each area of the power distribution equipment terminal, the total current value of each area of the power distribution equipment terminal and the total release amount of each area of the power distribution equipment terminal;
the specific steps of the detail monitoring and analyzing operation are as follows:
the method comprises the following steps: acquiring detail judgment information of each region of the power distribution equipment terminal in real time, and respectively marking the total electric field intensity of each region of the power distribution equipment terminal, the total current value of each region of the power distribution equipment terminal and the total local volume of each region of the power distribution equipment terminal as Lj, Kj and Jj, wherein j is 1.
Step two: according to the formula
Obtaining real-time discharge interference indexes Hj of each region of the distribution equipment terminal, wherein l, k and sigma are correction factors, sigma is larger than l and larger than k, sigma + l + k is 2.6582, rho, epsilon and mu are interference coefficients, and rho is smaller than muLess than ε and ρ + μ + ε 5.3228;
step three: comparing the real-time discharge interference index Hj of each area of the power distribution equipment terminal with a preset value h, generating a maintenance signal with the area of the power distribution equipment terminal when the discharge interference index Hj is greater than the preset value h, and generating a supervision observation signal with the area of the power distribution equipment terminal when the discharge interference index Hj is less than or equal to the preset value h;
the switch working condition, the electric power running condition and the electromagnetic interference condition of the power distribution equipment terminal are combined, comprehensive use safety condition of the power distribution equipment terminal is obtained through internal formulation, assignment analysis and external overall weighting processing, the detail depth condition of each region of the power distribution equipment terminal is called accordingly, correction formula analysis and hierarchical comparison processing are carried out on the power distribution equipment terminal, detailed management supervision condition of each region of the power distribution equipment terminal is obtained, the use safety judgment precision of the power distribution equipment terminal is greatly improved, the detailed management supervision degree of each region is improved, and the effects of wide range, precise judgment and fine supervision are achieved.
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| CN109102171A (en) * | 2018-07-24 | 2018-12-28 | 上海欣影电力科技股份有限公司 | A kind of substation equipment condition intelligent evaluation system and method based on big data |
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