CN112285465A

CN112285465A - Electric energy quality on-line monitoring device based on intelligent algorithm

Info

Publication number: CN112285465A
Application number: CN202011099989.8A
Authority: CN
Inventors: 赵晔; 刘依丹; 牧丹; 孙瑞霞
Original assignee: Individual
Current assignee: Hohhot Aoxiang Electric Power Automation Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-01-29
Anticipated expiration: 2040-10-15
Also published as: CN112285465B

Abstract

The invention relates to an electric energy quality on-line monitoring device based on an intelligent algorithm, which comprises a monitoring unit, an interaction unit, a storage unit, a statistic unit, a communication unit, a time synchronization unit and a central control unit. The invention improves the monitoring efficiency of the monitoring device by setting a central control unit and pre-storing a preset proportion secondary matrix group Z0 in a storage unit, wherein the central control unit selects a corresponding preset proportion type matrix according to the type of the electrical parameter to be monitored, selects a corresponding proportion value according to the actually monitored waveform parameter or numerical parameter for monitoring, and comprehensively and accurately evaluates the circuit to be monitored by recording the proportion of the number of cycles which does not meet the standard in the monitoring process.

Description

Electric energy quality on-line monitoring device based on intelligent algorithm

Technical Field

The invention relates to the technical field of electric signal monitoring, in particular to an electric energy quality on-line monitoring device based on an intelligent algorithm.

Background

With the development of power electronics technology, many microprocessor-based controllers and power electronics are extremely sensitive to electromagnetic interference; the development of the on-line monitoring equipment for the power quality brings good economic benefits to power supply parties and power utilization parties.

The existing electric energy quality monitoring device is uniform in specification, a single type monitoring device can only monitor a single type circuit, and meanwhile, the existing monitoring device adopts the same monitoring standard when aiming at different types of electric parameters, so that the monitoring result is deviated, and the monitoring efficiency is low.

Disclosure of Invention

Therefore, the invention provides an intelligent algorithm-based electric energy quality online monitoring device, which is used for solving the problem of low monitoring efficiency caused by the fact that monitoring standards cannot be adjusted according to different types of monitoring parameters in the prior art.

In order to achieve the above object, the present invention provides an intelligent algorithm based power quality on-line monitoring device, which comprises:

the monitoring unit is used for monitoring electrical parameters in a circuit connected with the monitoring device, and the monitored electrical parameters comprise a waveform parameter b and a numerical parameter d;

the interaction unit is used for displaying the electric parameter types measured by the monitoring unit and each monitoring value in the monitoring process;

the storage unit is used for storing the electrical parameters monitored by the monitoring unit and the judgment result of the central control unit;

the statistical unit is used for counting the data monitored by the devices in a plurality of monitoring periods with specified quantity;

the communication unit is used for enabling the monitoring device to perform data interaction with an upper computer;

the time synchronization unit is connected with the communication unit and used for keeping time with an upper computer;

the central control unit is respectively connected with the monitoring unit, the interaction unit, the storage unit and the communication unit and is used for automatically setting a monitoring standard according to the type of a circuit to be monitored and controlling the alarm unit to give an alarm when a monitoring parameter exceeds a preset standard in the monitoring process;

the memory unit is also stored with a preset ratio secondary matrix group Z0(Z1, Z2, Z3 and Z4), wherein Z1 is a first type of electric parameter preset ratio matrix group, Z2 is a second type of electric parameter preset ratio matrix group, Z3 is a third type of electric parameter preset ratio matrix group, and Z4 is a fourth type of electric parameter preset ratio matrix group; for the ith type electrical parameter preset occupation matrix set Zi, i is 1, 2, 3, 4, Zi (Zbi, Zdi), wherein Zbi is the ith type waveform parameter preset occupation matrix, and Zdi is the ith type numerical parameter preset occupation matrix;

for the ith type waveform parameter preset ratio matrixes Zbi, Zbi (Zbi1, Zbi2, Zbi3, Zbi4), wherein Zbi1 is a first preset ratio of the ith type waveform parameter, Zbi2 is a second preset ratio of the ith type waveform parameter, Zbi3 is a third preset ratio of the ith type waveform parameter, Zbi4 is a fourth preset ratio of the ith type waveform parameter, and the values of the preset ratios are gradually increased in sequence; for the ith type numerical parameter preset ratio matrixes Zdi, Zdi (Zdi1, Zdi2, Zdi3, Zdi4), wherein Zdi1 is the first preset ratio of the ith type numerical parameter, Zdi2 is the second preset ratio of the ith type numerical parameter, Zdi3 is the third preset ratio of the ith type numerical parameter, Zdi4 is the fourth preset ratio of the ith type numerical parameter, and the preset ratio values are gradually increased in sequence;

when the monitoring device monitors the numerical parameter of the ith type, the monitoring unit monitors the numerical parameter Di or the waveform parameter Bi in the circuit when reaching a single preset monitoring period, the central control unit judges whether the monitored parameter meets the standard Bi or Di after the monitoring is finished, when the numerical parameter Di/waveform parameter Bi monitored in a single period does not accord with the standard Bi/Di, the central control unit records the monitoring result and controls the statistical unit to record the monitoring result, when the number of the monitoring periods reaches a specified value, the counting unit counts the number of the monitored non-standard monitoring periods according to the numerical parameter Di/the waveform parameter Bi and calculates zdi of the non-standard monitoring period ratio according to the numerical parameter Di/zbi of the non-standard monitoring period ratio according to the waveform parameter Bi; after the calculation is completed, the central control unit compares zdi with Zdi/zbi with Zbi:

when zdi is equal to 0, the central control unit judges that the power quality of the monitoring device connecting circuit is excellent;

when the voltage is more than 0 and less than zdi and less than or equal to Zdi1, the central control unit judges the quality of the electric energy of the circuit to be excellent;

when Zdi1 is more than zdi and less than or equal to Zdi2, the central control unit judges the power quality of the circuit to be good;

when Zdi2 is more than zdi and less than or equal to Zdi3, the central control unit judges the power quality of the circuit to be medium;

when Zdi3 is more than zdi and less than or equal to Zdi4, the central control unit judges that the quality of the electric energy of the circuit is poor;

when zdi is larger than Zdi4, the central control unit judges the power quality of the circuit to be extremely poor;

when zbi is 0, the central control unit judges that the power quality of the circuit is excellent;

when zbi is more than 0 and less than or equal to Zbi1, the central control unit judges the quality of the electric energy of the circuit to be excellent;

when the voltage is Zbi1 < zbi < Zbi2, the central control unit judges the quality of the electric energy of the circuit to be good;

when the voltage is Zbi2 < zbi < Zbi3, the central control unit judges that the power quality of the circuit is medium;

when the voltage is Zbi3 < zbi < Zbi4, the central control unit judges that the quality of the electric energy of the circuit is poor;

when zbi is larger than Zbi4, the central control unit judges that the power quality of the circuit is extremely poor;

when the central control unit judges that the power quality of the circuit is medium or poor, the central control unit monitors the environment where the monitoring device is located in real time, calculates environment parameters and corrects parameters in the Zdi/Zbi matrix according to the calculation result; when the central control unit judges that the power quality of the circuit is extremely poor, the central control unit adjusts the standard bi or di according to the difference between zdi and Zdi 4/the difference between zbi and Zbi 4.

Further, a preset adjusting difference value matrix group E0 and a preset adjusting coefficient matrix group E0 are also arranged in the storage unit; for a preset adjustment difference matrix set E0, E0(E1, E2, E3, E4), where E1 is a first preset adjustment difference matrix, E2 is a second preset adjustment difference matrix, E3 is a third preset adjustment difference matrix, E4 is a fourth preset adjustment difference matrix, for an ith preset adjustment difference matrix Ei, i is 1, 2, 3, 4, Ei (Ebi, Edi), where Ebi is an ith preset waveform adjustment difference, and Edi is an ith preset value adjustment difference; for a preset adjustment coefficient matrix group e0, e0(e1, e2, e3, e4), wherein e1 is a first preset adjustment coefficient matrix, e2 is a second preset adjustment coefficient matrix, e3 is a third preset adjustment coefficient matrix, e4 is a fourth preset adjustment coefficient matrix, for an ith preset adjustment coefficient matrix ei, ei (ebi, dei), wherein ebi is an ith preset waveform adjustment coefficient, edi is an ith preset value adjustment coefficient;

when the central control unit judges that the power quality of the monitoring device connecting circuit is extremely poor, the central control unit calculates a difference value Ed/zbi between zdi and Zdi4 and a difference value Eb between Zbi4, and after calculation is completed, the central control unit compares the Ed/Eb with parameters in an E0 matrix group:

when Eb is less than Eb1, the central control unit does not adjust bi and judges that the power quality of the circuit is extremely poor;

when Eb1 is not more than Eb < Eb2, the central control unit adjusts bi by using Eb1, and the adjusted standard bi' ═ Eb 1;

when Eb2 is not more than Eb < Eb3, the central control unit adjusts bi by using Eb2, and the adjusted standard bi' ═ Eb 2;

when Eb3 is not more than Eb < Eb4, the central control unit adjusts bi by using Eb3, and the adjusted standard bi' ═ Eb 3;

when Eb is larger than or equal to Eb4, the central control unit adjusts bi by using Eb4, and the adjusted standard bi' ═ bi Eb 4;

when Ed is less than Ed1, the central control unit does not adjust di and judges that the power quality of the circuit is extremely poor;

when Ed1 is not more than Ed < Ed2, the central control unit adjusts di by using Ed1, and the adjusted standard di' ═ di-Ed 1;

when Ed2 is not more than Ed < Ed3, the central control unit adjusts di by using Ed2, and the adjusted standard di' ═ di-Ed 2;

when Ed3 is not more than Ed < Ed4, the central control unit adjusts di by using Ed3, and the adjusted standard di' ═ di-Ed 3;

when Ed is larger than or equal to Ed4, the central control unit adjusts di by using Ed4, and the adjusted standard di' ═ di _ Ed 4;

after the central control unit finishes adjusting the standard bi/di, the central control unit monitors the power quality of the circuit again; after the central control unit adjusts the standard bi/di for three times, the central control unit still judges that the power quality of the circuit is extremely poor, and the central control unit judges that the power quality of the circuit is extremely poor and does not adjust the standard bi/di any more.

Furthermore, a preset environment standard matrix G0 and a preset environment correction coefficient matrix G0 are also arranged in the storage unit; for the preset environment standard parameter matrixes G0, G0(G1, G2, G3, G4), wherein G1 is a first preset environment standard parameter, G2 is a second preset environment standard parameter, G3 is a third preset environment standard parameter, G4 is a fourth preset environment standard parameter, and the preset environment standard parameter values are gradually increased in sequence; for the preset environment correction coefficient matrix g0, g0(g1, g2, g3, g4), wherein g1 is a first preset environment correction coefficient, g2 is a second preset environment correction coefficient, g3 is a third preset environment correction coefficient, g4 is a fourth preset environment correction coefficient, g4 < g3 < g2 < g1 < 1;

when the central control unit judges that the power quality of the monitoring device connecting circuit is medium or poor, the central control unit monitors the environmental parameter G around the monitoring device,

wherein t is the ambient temperature, s is the ambient humidity, and p is the ambient pressure; after the calculation is completed, the central control unit compares the parameters in the G and G0 matrixes:

when G is more than 0 and less than or equal to G1, the central control unit does not modify the parameters in the Zdi/Zbi matrix and maintains the original judgment result;

when G is more than G1 and less than or equal to G2, the central control unit selects G1 to correct the parameters in the Zdi/Zbi matrix;

when G is more than G2 and less than or equal to G3, the central control unit selects G2 to correct the parameters in the Zdi/Zbi matrix;

when G is more than G3 and less than or equal to G4, the central control unit selects G3 to correct the parameters in the Zdi/Zbi matrix;

when G is larger than G4, the central control unit selects G4 to correct the parameters in the Zdi/Zbi matrix;

when the central control unit selects gj to modify the parameters in the Zdi/Zbi matrix, j is 1, 2, 3, 4, the modified i-th type waveform parameter preset occupation matrix Zbi '(Zbi 1 × gj, Zbi2 × gj, Zbi3 × gj, Zbi4 × gj), and the modified i-th type numerical parameter preset occupation matrix Zdi' (Zdi1 × gj, Zdi2 × gj, Zdi3 × gj, Zdi4 × gj);

and after the central control unit finishes the correction of the Zdi/Zbi matrix, the central control unit monitors the power quality of the circuit again, and if the central control unit judges that the power quality of the circuit is still medium or poor by using the corrected Zdi '/Zbi' matrix, the central control unit takes the judgment result as the final result of the monitoring.

Furthermore, the memory cell also stores a preset circuit type matrix R0, a preset numerical value electrical parameter type matrix D0 and a preset waveform electrical parameter matrix B0; for the preset circuit type matrix R0(R1, R2, R3, R4), wherein R1 is a first preset circuit type, R2 is a second preset circuit type, R3 is a third preset circuit type, and R4 is a fourth preset circuit type; for the preset numerical value electrical parameter type matrixes D0, D0(D1, D2, D3, D4), wherein D1 is a first preset numerical value electrical parameter type, D2 is a second preset numerical value electrical parameter type, D3 is a third preset numerical value electrical parameter type, and D4 is a fourth preset numerical value electrical parameter type; for the preset waveform electrical parameter matrixes B0, B0(B1, B2, B3, B4), wherein B1 is a first preset waveform electrical parameter type, B2 is a second preset waveform electrical parameter type, B3 is a third preset waveform electrical parameter type, and B4 is a fourth preset waveform electrical parameter type;

when the monitoring device is communicated with the upper circuit, the central control unit monitors the type of the circuit and judges the type of the monitored electrical parameters according to the monitoring result:

when the type of the circuit is a first type circuit R1, the central control unit presets the type of the monitored electrical parameter to a first preset numerical value electrical parameter D1 or a first preset waveform electrical parameter B1;

when the type of the circuit is a second type circuit R2, the central control unit presets the type of the monitored electrical parameter to a second preset numerical value electrical parameter D2 or a second preset waveform electrical parameter B2;

when the type of the circuit is a third type of circuit R3, the central control unit presets the type of the monitored electrical parameter to a third preset numerical value electrical parameter D3 or a third preset waveform electrical parameter B3;

when the type of the circuit is the fourth type of circuit R4, the central control unit presets the type of the monitored electrical parameter to a fourth preset numerical value electrical parameter D4 or a fourth preset waveform electrical parameter B4.

Further, a preset electrical parameter standard matrix group C0(C1, C2, C3, C4) is stored in the storage module, wherein C1 is a first preset electrical parameter standard matrix, C2 is a second preset electrical parameter standard matrix, C3 is a third preset electrical parameter standard matrix, and C4 is a fourth preset electrical parameter standard matrix;

when the central control unit monitors a first preset numerical value electrical parameter D1 or a first preset waveform electrical parameter B1, the central control unit selects parameters in a first preset type electrical parameter standard matrix C1 as monitoring standards;

when the central control unit monitors a second preset numerical value electrical parameter D2 or a second preset waveform electrical parameter B2, the central control unit selects parameters in a second preset type electrical parameter standard matrix C2 as monitoring standards;

when the central control unit monitors a third preset numerical value electrical parameter D3 or a third preset waveform electrical parameter B3, the central control unit selects parameters in a third preset type electrical parameter standard matrix C3 as monitoring standards;

when the central control unit monitors the fourth preset numerical value electrical parameter D4 or the fourth preset waveform electrical parameter B4, the central control unit selects the parameters in the fourth preset type electrical parameter standard matrix C4 as the monitoring standards.

Further, for the ith preset type electrical parameter standard Ci, i is 1, 2, 3, 4, Ci (bi, di), where bi is the ith preset type waveform electrical parameter standard, and di is the ith preset type numerical value electrical parameter standard;

when the central control unit selects parameters in the ith preset type electrical parameter standard matrix Ci as monitoring standards to monitor waveform parameters Bi in the circuit, the central control unit selects Bi from the Ci matrix as the monitoring standards for the waveform parameters Bi;

when the central control unit selects the parameters in the ith preset electricity-like parameter standard matrix Ci as the monitoring standards to monitor the numerical parameters Di in the circuit, the central control unit selects Di from the Ci matrix as the monitoring standards aiming at the numerical parameters Di.

Further, a preset monitoring period matrix group T0(T1, T2, T3, T4) is stored in the memory cell, wherein T1 is a first preset monitoring period matrix, T2 is a second preset monitoring period matrix, T3 is a third preset monitoring period matrix, and T4 is a fourth preset monitoring period matrix;

when the monitoring device monitors the waveform electrical parameter B1 or the numerical electrical parameter D1 of the first kind, the central control unit monitors the circuit by using various parameters in a T1 matrix;

when the monitoring device monitors a second type of waveform electrical parameter B2 or a numerical electrical parameter D2, the central control unit monitors the circuit by using various parameters in a T2 matrix;

when the monitoring device monitors a waveform electrical parameter B3 or a numerical electrical parameter D3 of a third kind, each parameter in a T3 matrix is selected by the central control unit to monitor the circuit;

when the monitoring device monitors the waveform electrical parameter B4 or the numerical electrical parameter D4 of the fourth kind, each parameter in the T4 matrix is selected by the central control unit to monitor the circuit.

Further, for the ith preset monitoring period matrix Ti, i is 1, 2, 3, 4, Ti (Tbi, Nbi, Tdi, Ndi), where Tbi is the ith preset waveform monitoring period duration for the ith kind of waveform electrical parameter, Nbi is the ith preset waveform monitoring period number for the ith kind of waveform electrical parameter, Tdi is the ith preset numerical monitoring period duration for the ith kind of numerical electrical parameter, Ndi is the ith preset numerical monitoring period number for the ith kind of numerical electrical parameter;

when the central control unit selects parameters in the Ti matrix to monitor ith type waveform parameters Bi in the circuit, the central control unit sets the monitoring period to Tbi and sets the maximum period number of monitoring to Nbi; when the waveform parameter Bi in the circuit is monitored, the central control unit controls the waveform parameter Bi in the monitoring unit monitoring circuit when the running time of the circuit reaches Tbi and judges whether the waveform parameter Bi in the period meets the standard according to the comparison result of Bi and Bi, after the judgment is finished, the central control unit counts time again and controls the waveform parameter Bi in the monitoring unit monitoring circuit again when the duration of the timing again reaches Tbi so as to judge whether the waveform parameter in the period meets the standard, and when the monitoring frequency of the monitoring unit reaches Nbi, the central control unit judges that the monitoring is finished and controls the statistical unit to calculate zbi;

when the central control unit selects parameters in the Ti matrix to monitor the ith type numerical parameter Di in the circuit, the central control unit sets the monitoring period to Tdi and sets the maximum monitoring period to Ndi; when the numerical parameter Di in the circuit is monitored, the central control unit controls the numerical parameter Di in the monitoring unit monitoring circuit when the running time of the circuit reaches Tdi, judges whether the numerical parameter Di in the period meets the standard according to the comparison result of the Di and the Di, after the judgment is finished, the central control unit counts again, controls the numerical parameter Di in the monitoring unit monitoring circuit again when the duration of the re-timing reaches Tdi so as to judge whether the numerical parameter in the period meets the standard, and when the monitoring times of the monitoring unit reach Ndi, the central control unit judges that the monitoring is finished and controls the statistical unit to calculate zdi.

Further, when the central control unit finishes presetting the type of the electrical parameter to be monitored, the central control unit displays a preset result on a display screen of the interaction unit through the interaction unit, a user can adjust the type of the electrical parameter to be monitored according to actual requirements, and the central control unit can redetermine the corresponding monitoring cycle duration, the monitoring cycle number, the monitoring standard and the preset ratio after the type of the electrical parameter is changed.

Furthermore, the monitoring device is also provided with a file generating unit and a printing unit, when the monitoring device completes single monitoring, the central control unit controls the file generating unit to extract monitoring data from the storage unit so as to generate a monitoring file, and after the file generating unit generates the file, a user can print the file through the printing unit.

Compared with the prior art, the invention has the advantages that the central control unit is arranged, the preset proportion secondary matrix group Z0 is prestored in the storage unit, the central control unit can select the corresponding preset proportion matrix according to the type of the electrical parameter to be monitored, the corresponding proportion value is selected according to the actually monitored waveform parameter or numerical parameter for monitoring, the comprehensive and high-precision evaluation is carried out on the circuit to be monitored by recording the proportion of the number of cycles which does not meet the standard in the monitoring process, and the monitoring efficiency of the monitoring device is improved.

Further, a preset adjusting difference value matrix group E0 and a preset adjusting coefficient matrix group E0 are also arranged in the storage unit; when the central control unit judges that the power quality of the connection circuit of the monitoring device is extremely poor, the central control unit calculates a difference value Ed/zbi between zdi and Zdi4 and a difference value Eb between Zbi4, and after calculation is completed, the central control unit compares the Ed/Eb with parameters in an E0 matrix group and corrects bi/di according to a comparison result. The proportion matrix is corrected according to the relation between the monitoring value and the preset value when the initial judgment is extremely poor, so that the condition that the rating of the circuit is deviated due to the fact that the judgment standard is too high can be effectively avoided, and the monitoring efficiency of the monitoring device is further improved.

Further, after the central control unit adjusts the standard bi/di for three times, the central control unit still determines that the power quality of the circuit is extremely poor, and the central control unit determines that the power quality of the circuit is extremely poor and does not adjust the standard bi/di any more. By limiting the maximum correction times, the situation that the judgment standard after multiple corrections is too low can be prevented from occurring, and therefore the monitoring efficiency of the monitoring device is further improved.

Furthermore, a preset environment standard matrix G0 and a preset environment correction coefficient matrix G0 are further arranged in the storage unit, when the central control unit judges that the quality of the electric energy of the monitoring device connecting circuit is medium or poor, the central control unit monitors the surrounding environment parameters G of the monitoring device, compares the parameters in the G and G0 matrixes and corrects the parameters in the Zdi/Zbi matrix according to the comparison result, and the preset ratio is adjusted according to the surrounding environment parameters of the monitoring device during actual operation, so that the influence of the surrounding environment factors on the monitoring result can be effectively avoided, the monitoring precision of the monitoring device is improved, and the monitoring efficiency of the monitoring device is further improved.

Furthermore, a preset circuit type matrix R0, a preset numerical value electric parameter type matrix D0 and a preset waveform electric parameter matrix B0 are also stored in the storage unit, when the monitoring device is communicated with a circuit, the type of the monitoring circuit of the central control unit is judged according to the monitoring result, the type of the electric parameter to be monitored is identified in advance according to the type of the accessed circuit, the time for identifying the circuit and selecting the type of the monitored electric parameter can be effectively saved, and the monitoring efficiency of the monitoring device is further improved.

Furthermore, a preset electric parameter standard matrix group C0 is stored in the storage module, when the central control unit monitors the specified type of electric parameters, the central control unit selects the parameters in the corresponding type of electric parameter standard matrix from the C0 matrix as the monitoring standards, and the corresponding monitoring standards are selected for use by the monitoring device according to the different types of electric parameters, so that the monitoring precision is improved, and the monitoring efficiency of the monitoring device is further improved.

Furthermore, a preset monitoring period matrix group T0 is stored in the storage unit, when the central control unit monitors the specified type of electrical parameter, the central control unit selects a corresponding preset monitoring period matrix from the T0 matrix group and selects a parameter in the matrix to adjust the number of periods and the duration of a single monitoring period in the monitoring process, and performs targeted monitoring on different types of electrical parameters by selecting different periods and periods, so that the monitoring accuracy of the monitoring device can be further improved, and the monitoring efficiency of the monitoring device can be further improved.

Further, when the central control unit finishes presetting the to-be-monitored electrical parameter types, the central control unit displays preset results on a display screen of the interaction unit through the interaction unit, a user can adjust the to-be-monitored electrical parameter types according to actual needs, the to-be-monitored electrical parameter types are actively adjusted, the monitoring device can meet monitoring needs of the user, and therefore monitoring efficiency of the monitoring device is further improved.

Drawings

Fig. 1 is a structural block diagram of the intelligent algorithm-based power quality online monitoring device of the present invention.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Fig. 1 is a functional block diagram of an intelligent algorithm-based power quality online monitoring device according to the present invention, which includes:

Specifically, a preset adjustment difference value matrix group E0 and a preset adjustment coefficient matrix group E0 are further arranged in the storage unit; for a preset adjustment difference matrix set E0, E0(E1, E2, E3, E4), where E1 is a first preset adjustment difference matrix, E2 is a second preset adjustment difference matrix, E3 is a third preset adjustment difference matrix, E4 is a fourth preset adjustment difference matrix, for an ith preset adjustment difference matrix Ei, i is 1, 2, 3, 4, Ei (Ebi, Edi), where Ebi is an ith preset waveform adjustment difference, and Edi is an ith preset value adjustment difference; for a preset adjustment coefficient matrix group e0, e0(e1, e2, e3, e4), wherein e1 is a first preset adjustment coefficient matrix, e2 is a second preset adjustment coefficient matrix, e3 is a third preset adjustment coefficient matrix, e4 is a fourth preset adjustment coefficient matrix, for an ith preset adjustment coefficient matrix ei, ei (ebi, dei), wherein ebi is an ith preset waveform adjustment coefficient, edi is an ith preset value adjustment coefficient;

Specifically, the storage unit is further provided with a preset environment standard matrix G0 and a preset environment correction coefficient matrix G0; for the preset environment standard parameter matrixes G0, G0(G1, G2, G3, G4), wherein G1 is a first preset environment standard parameter, G2 is a second preset environment standard parameter, G3 is a third preset environment standard parameter, G4 is a fourth preset environment standard parameter, and the preset environment standard parameter values are gradually increased in sequence; for the preset environment correction coefficient matrix g0, g0(g1, g2, g3, g4), wherein g1 is a first preset environment correction coefficient, g2 is a second preset environment correction coefficient, g3 is a third preset environment correction coefficient, g4 is a fourth preset environment correction coefficient, g4 < g3 < g2 < g1 < 1;

Specifically, the memory cell further stores a preset circuit type matrix R0, a preset numerical value electrical parameter type matrix D0 and a preset waveform electrical parameter matrix B0; for the preset circuit type matrix R0(R1, R2, R3, R4), wherein R1 is a first preset circuit type, R2 is a second preset circuit type, R3 is a third preset circuit type, and R4 is a fourth preset circuit type; for the preset numerical value electrical parameter type matrixes D0, D0(D1, D2, D3, D4), wherein D1 is a first preset numerical value electrical parameter type, D2 is a second preset numerical value electrical parameter type, D3 is a third preset numerical value electrical parameter type, and D4 is a fourth preset numerical value electrical parameter type; for the preset waveform electrical parameter matrixes B0, B0(B1, B2, B3, B4), wherein B1 is a first preset waveform electrical parameter type, B2 is a second preset waveform electrical parameter type, B3 is a third preset waveform electrical parameter type, and B4 is a fourth preset waveform electrical parameter type;

Specifically, the storage module further stores a preset electrical parameter standard matrix group C0(C1, C2, C3, C4), where C1 is a first preset electrical parameter standard matrix, C2 is a second preset electrical parameter standard matrix, C3 is a third preset electrical parameter standard matrix, and C4 is a fourth preset electrical parameter standard matrix;

Specifically, for the ith preset type electrical parameter standard Ci, i is 1, 2, 3, 4, Ci (bi, di), where bi is the ith preset type waveform electrical parameter standard, and di is the ith preset type numerical value electrical parameter standard;

Specifically, the memory cell further stores a preset monitoring period matrix group T0(T1, T2, T3, T4), where T1 is a first preset monitoring period matrix, T2 is a second preset monitoring period matrix, T3 is a third preset monitoring period matrix, and T4 is a fourth preset monitoring period matrix;

Specifically, for the ith preset monitoring period matrix Ti, i is 1, 2, 3, 4, Ti (Tbi, Nbi, Tdi, Ndi), where Tbi is the ith preset waveform monitoring period duration for the ith kind of waveform electrical parameter, Nbi is the ith preset waveform monitoring period number for the ith kind of waveform electrical parameter, Tdi is the ith preset numerical monitoring period duration for the ith kind of numerical electrical parameter, and Ndi is the ith preset numerical monitoring period number for the ith kind of numerical electrical parameter;

Specifically, when the central control unit completes the presetting of the type of the electrical parameter to be monitored, the central control unit displays the preset result on the display screen of the interaction unit through the interaction unit, a user can adjust the type of the electrical parameter to be monitored according to actual requirements, and the central control unit can redetermine the corresponding monitoring cycle duration, the monitoring cycle number, the monitoring standard and the preset ratio after the type of the electrical parameter is changed.

Specifically, the monitoring device is further provided with a file generating unit and a printing unit, when the monitoring device completes single monitoring, the central control unit controls the file generating unit to extract monitoring data from the storage unit to generate a monitoring file, and after the file generating unit generates the file, a user can print the file through the printing unit.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electric energy quality on-line monitoring device based on intelligent algorithm which characterized in that includes:

2. The intelligent algorithm-based electric energy quality online monitoring device according to claim 1, wherein a preset adjusting difference value matrix group E0 and a preset adjusting coefficient matrix group E0 are further arranged in the storage unit; for a preset adjustment difference matrix set E0, E0(E1, E2, E3, E4), where E1 is a first preset adjustment difference matrix, E2 is a second preset adjustment difference matrix, E3 is a third preset adjustment difference matrix, E4 is a fourth preset adjustment difference matrix, for an ith preset adjustment difference matrix Ei, i is 1, 2, 3, 4, Ei (Ebi, Edi), where Ebi is an ith preset waveform adjustment difference, and Edi is an ith preset value adjustment difference; for a preset adjustment coefficient matrix group e0, e0(e1, e2, e3, e4), wherein e1 is a first preset adjustment coefficient matrix, e2 is a second preset adjustment coefficient matrix, e3 is a third preset adjustment coefficient matrix, e4 is a fourth preset adjustment coefficient matrix, for an ith preset adjustment coefficient matrix ei, ei (ebi, dei), wherein ebi is an ith preset waveform adjustment coefficient, edi is an ith preset value adjustment coefficient;

3. The intelligent algorithm-based power quality online monitoring device according to claim 2, wherein a preset environment standard matrix G0 and a preset environment correction coefficient matrix G0 are further provided in the storage unit; for the preset environment standard parameter matrixes G0, G0(G1, G2, G3, G4), wherein G1 is a first preset environment standard parameter, G2 is a second preset environment standard parameter, G3 is a third preset environment standard parameter, G4 is a fourth preset environment standard parameter, and the preset environment standard parameter values are gradually increased in sequence; for the preset environment correction coefficient matrix g0, g0(g1, g2, g3, g4), wherein g1 is a first preset environment correction coefficient, g2 is a second preset environment correction coefficient, g3 is a third preset environment correction coefficient, g4 is a fourth preset environment correction coefficient, g4 < g3 < g2 < g1 < 1;

4. The intelligent algorithm-based power quality on-line monitoring device according to claim 3, wherein the storage unit further stores a preset circuit type matrix R0, a preset numerical value electrical parameter type matrix D0 and a preset waveform electrical parameter matrix B0; for the preset circuit type matrix R0(R1, R2, R3, R4), wherein R1 is a first preset circuit type, R2 is a second preset circuit type, R3 is a third preset circuit type, and R4 is a fourth preset circuit type; for the preset numerical value electrical parameter type matrixes D0, D0(D1, D2, D3, D4), wherein D1 is a first preset numerical value electrical parameter type, D2 is a second preset numerical value electrical parameter type, D3 is a third preset numerical value electrical parameter type, and D4 is a fourth preset numerical value electrical parameter type; for the preset waveform electrical parameter matrixes B0, B0(B1, B2, B3, B4), wherein B1 is a first preset waveform electrical parameter type, B2 is a second preset waveform electrical parameter type, B3 is a third preset waveform electrical parameter type, and B4 is a fourth preset waveform electrical parameter type;

5. An intelligent algorithm-based electric energy quality on-line monitoring device according to claim 4, wherein a preset electric parameter standard matrix group C0(C1, C2, C3, C4) is further stored in the storage module, wherein C1 is a first preset electric parameter standard matrix, C2 is a second preset electric parameter standard matrix, C3 is a third preset electric parameter standard matrix, and C4 is a fourth preset electric parameter standard matrix;

6. An intelligent algorithm-based electric energy quality online monitoring device according to claim 5, wherein for the ith preset type electrical parameter standard Ci, i is 1, 2, 3, 4, Ci (bi, di), where bi is the ith preset type waveform electrical parameter standard and di is the ith preset type numerical value electrical parameter standard;

7. The intelligent algorithm-based power quality online monitoring device according to claim 6, wherein a preset monitoring period matrix set T0(T1, T2, T3, T4) is further stored in the storage unit, wherein T1 is a first preset monitoring period matrix, T2 is a second preset monitoring period matrix, T3 is a third preset monitoring period matrix, and T4 is a fourth preset monitoring period matrix;

8. The intelligent algorithm-based online power quality monitoring device according to claim 7, wherein for the ith preset monitoring period matrix Ti, i is 1, 2, 3, 4, Ti (Tbi, Nbi, Tdi, Ndi), where Tbi is the ith preset waveform monitoring period duration for the ith kind of waveform electrical parameter, Nbi is the ith preset waveform monitoring period number for the ith kind of waveform electrical parameter, Tdi is the ith preset numerical monitoring period duration for the ith kind of numerical electrical parameter, Ndi is the ith preset numerical monitoring period number for the ith kind of numerical electrical parameter;

9. The intelligent algorithm-based power quality on-line monitoring device according to claim 4, wherein when the central control unit completes the presetting of the type of the electrical parameter to be monitored, the central control unit displays the preset result on the display screen of the interaction unit through the interaction unit, a user can adjust the type of the electrical parameter to be monitored according to actual requirements, and the central control unit can redetermine the corresponding monitoring cycle duration, the monitoring cycle number, the monitoring standard and the preset occupation ratio after the type of the electrical parameter is changed.

10. The intelligent algorithm-based power quality online monitoring device according to claim 1, wherein the monitoring device is further provided with a file generation unit and a printing unit, when the monitoring device completes single monitoring, the central control unit controls the file generation unit to extract monitoring data from the storage unit to generate a monitoring file, and after the file generation unit generates the file, a user can print the file through the printing unit.