CN106104282A - A kind of electric measurement method based on reference energy - Google Patents
A kind of electric measurement method based on reference energy Download PDFInfo
- Publication number
- CN106104282A CN106104282A CN201580007332.5A CN201580007332A CN106104282A CN 106104282 A CN106104282 A CN 106104282A CN 201580007332 A CN201580007332 A CN 201580007332A CN 106104282 A CN106104282 A CN 106104282A
- Authority
- CN
- China
- Prior art keywords
- electric
- signal
- energy
- reference signal
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
A kind of electric measurement method based on reference energy, comprises the following steps: gathering first reference signal from circuit under test, the first reference signal is current signal or voltage signal；First reference signal being multiplied with second reference signal, it is thus achieved that reference power, the second reference signal is voltage signal or current signal；Reference power in predetermined time period is carried out time integral, it is thus achieved that with reference to electric energy；Electric state is judged according to reference to electric energy.The application realizes electrically detection and fault diagnosis from each time period electrical energy angle, especially for the middle early warning analysis of electric hidden danger, reduces electric detection difficulty.
Description
This application claims submitting within 28th Patent Office of the People's Republic of China, Application No. 201410445704.X, the Chinese patent application of entitled " a kind of electric measurement method and device based on energy " in August in 2014 and in August in 2014 submitting within 28th Patent Office of the People's Republic of China, Application No. 201410445703.5, a kind of priority of the Chinese patent application of entitled " electric measurement method and device based on energy for individual voltage or electric current ", entire contents are hereby incorporated by reference in the application.
The application is related to technical field of electrical measurement, more particularly to a kind of electric measurement method based on reference energy.
In current many electric detection courses of work, some important electric fault parameters are more difficult with existing instrument direct measurement, and some electric parameters are very big in the state characteristic difference of interruption maintenance phase and runtime.Most electrical installation situations and fault state can describe reflection exactly by parameters such as electric current, voltages, but electric current, voltage are time variation transient state parameters.Particularly the abnormal current of nonmetal character insulation fault, voltage change over time very big, most electrically hidden danger early stages, and transient state is normal in the electric parameter most of the time, and the generation of anomalous event has statistical significance：Over time, the frequency more and more higher of appearance, numerical value become larger.
Since the fifties, provided according to China's power equipment preventive trial code, to power equipment
Carry out periodical power failure experiment, maintenance and safeguard, but the potential faults that routine test can not in time inside discovering device, the experiment that has a power failure applies the test voltage less than working voltage, also not sensitive enough to the reflection of some defects；Current power maintenance of equipment system forward condition maintenance direction is developed.Some new electric on-line fault monitoring technologies at home and abroad obtain extensive use, including the Series Microcomputer pattern synthesis such as transformer, circuit, motor, capacitor monitoring and protection (referred to as：Microcomputer complex protection) product and technology development it is highly developed, but at present lack hidden danger in early stage on-Line Monitor Device and technology；Failure wave-recording technology, is to use a kind of more electric on-line fault monitoring technological means at present, and it by detecting the time variation transient state parameter such as record current, voltage oscillogram faults situation that actual samples point is constituted during failure in real time.But failure wave-recording needs to store substantial amounts of data, if monocycle (20 milliseconds) fundamental wave of 50Hz power frequency electric signals constitutes Wave datas with 12 16 words, the failure wave-recording Wave data of only 10 minutes electric currents of one group of length and voltage needs to store 1,440,000 bytes.On the other hand, electric anomaly parameter value is generally much smaller than fault parametrs identification, and outside the scope that failure wave-recording is monitored, expanding to abnormal recording can cause the data of more magnanimity to need storage to handle, and this is apparently not the advantage place of embedded microcontroller system.
For the detection of single voltage or current signal, except failure wave-recording technology, the method for voltage integrating meter and current integration is also utilized.For example：Patent of invention of the Japanese Toyota Motor Corporation rep. in China's application《The abnormal supply unit that electric current is flowed through in drive circuit can be detected》(Patent No.：CN200510079921), using the integral and calculating of Current versus time, by the comparison of the integration and threshold values, judge whether electric current is abnormal；The patent of invention of Furukawa Electric Co., Ltd《The condition detection method and its device of electric energy storage device》(the patent No.：CN201080036072), using the integral and calculating of current versus time, the electric power storage quantity of state using the voltage integrating meter as battery.AM General automobile Global Tech operates the inventive technique of Co., Ltd《Overcurrent detects control method》(the patent No.：
CN201110311305), it is also integrated value using Current versus time, judges whether to exceed threshold values, start relevant control behavior.Lip river formula coil (being also translated into Rogowski coil) is the New Product occurred in recent years, is also calculated using integral calculus.
The content of the invention
The technical problem existed based on background technology, present applicant proposes a kind of electric measurement method based on reference energy.
A kind of electric measurement method based on reference energy that the application is proposed, comprises the following steps：
First reference signal is gathered from circuit under test, the first reference signal is current signal or voltage signal；
First reference signal is multiplied with second reference signal, reference power is obtained, the second reference signal is voltage signal or current signal；
Reference power in predetermined time period is subjected to time integral, acquisition refers to electric energy；
Electric state is judged with reference to electric energy according to each period.
Preferably, when electric state is abnormal, abnormal judgement is comprised the following steps：
The abnormal place period is refined, multiple time slices are decomposed into；
Com-parison and analysis is carried out with reference to electric energy to each time slice, judge it is abnormal where the period, and in the intersegmental development and change of each time.
Preferably, the second reference signal is predetermined constant.
Preferably, the second reference signal is the auxiliary signal produced by the human assistance module of peripheral hardware.
A kind of electric measurement method based on reference energy, comprises the following steps：
At least one initial signal pair is obtained, each initial signal by one from circuit under test to being adopted
First reference signal of collection and the second reference signal composition, first reference signal is current signal or voltage signal, second reference signal is voltage signal or current signal, and the first reference signal of at least one initial signal centering and second reference signal are the homologous signal with phase relation；
First reference signal of each initial signal centering is multiplied with the second reference signal, corresponding reference power is obtained；
Reference power in predetermined time period is subjected to time integral, acquisition refers to electric energy；
Judge electric state according to reference to electric energy.
Preferably, initial signal is connected to the embedded electric energy metering module or external electric energy computation chip of microcontroller to (particularly the signal with phase relation to), obtain using with reference to electric energy be core comprising the high precision electric parameter sets including various active parameters and idle parameter, according to the multi-faceted judgement electric state of electric parameter set.
Preferably, when electric state is abnormal, abnormal judgement is comprised the following steps：
The abnormal place period is refined, multiple time slices are decomposed into；
Com-parison and analysis is carried out with reference to electric energy to each time slice, judge it is abnormal where the period, and in the intersegmental development and change of each time.
In this application, product and the product (power) are carried out to voltage and current to handle the data acquisition such as integration of time calculating, parameters such as the time variation transient voltages and electric current easily disappeared with the time, be converted to do not lost with efflux have accumulation can the statistical of quantized character refer to electrical energy parameter, and the initial signal a large amount of high precision electric parameter sets that refer to parameter composition related to obtaining are directed to, wherein using reference electrical energy parameter as core.Being compared to each other and (analyzing Abnormal Development variation tendency) and self comparing and (abnormal whether produce and the abnormal order of severity being judged) by reference to electric energy numerical value, with reference to the practical working situation and environmental factor of electric monitoring object, whether judgement produces electric fault.
If having produced electric fault hidden danger, then potential faults and variation tendency in the further labor variant period, according to the reference electric energy numerical value difference of different periods, judge and judge that the hidden danger results from some specific electrical equipments that different periods are used, be also generated from electric wiring.
In this application, single or paired transient voltage, current signal, reincarnation is made into reference power, then the reference power in predetermined time period is subjected to time integral, and acquisition each period refers to electric energy.Electrical energy is a kind of important electric parameter for being capable of the simply direct electric monitoring object working condition of quantitative measurement, by undisputed the core foundation as electric energy tariff, in electric detection technique field, electrical energy parameter embodies the total amount of the electric current comprising abnormal hidden danger, voltage signal in each period and accumulated, and carrying out macroanalysis to electric hidden danger on time axis, there are other electric parameters to be difficult to the advantage substituted.
The Current integrating method of the applications such as Co., Ltd is operated with the Global Tech of AM General automobile described in technical background, voltage integrating meter patented method is compared, on the one hand the different abstract methods of Current integrating method and voltage integrating meter two are unified into the related reference energy method of widely known energy conception by the application, on the other hand by constructing the voltage and current signal pair with phase relation, combined high precision DSP electric energy metering modules, the maturation prior art such as electric energy computation chip, directly obtain comprising multiple active, the electric parameter set of idle parameter composition, realize multi-faceted discriminatory analysis electric state, especially for the middle early warning analysis of electric hidden danger, reduce electric detection difficulty, total amount statistics can be carried out along time axis by obtaining one kind, the high precision electric detection method of piecewise analysis.
Fig. 1 is the electric measurement method flow diagram based on reference energy in embodiment 1；
Fig. 2 is the electric measurement method flow diagram based on reference energy in embodiment 3.
In the application, uniformity signal, which refers to, belongs to voltage signal or current signal, and such as zero-sequence current, residual current, phase current are uniformity signal, and residual voltage, phase voltage, human assistance voltage are uniformity signal；Homologous signal, which refers to, has phase relation between the current signal and voltage signal exported from same bus, homologous signal；Reference energy refers to a kind of energy mainly with reference significance, and this document both includes the electrical energy of virtual construct, also including the electrical energy with actual electrical sense, is referred to as reference energy (herein referring to reference to electrical energy or referred to as refer to electric energy)；Reference power refers to the power corresponding with reference energy.
Embodiment 1
The electric measurement method based on reference energy that the present embodiment 1 is provided, comprises the following steps：
S11, one the first reference signal of collection from circuit under test.
In the present embodiment, the first reference signal is residual current.
S12, the first reference signal is multiplied with second reference signal, obtains reference power.
Second reference signal is generally definite value constant K, specifically can value unit voltage 1V or 1A 10 Nth power times, N is integer, such as when for independent first reference signal of faint outside input, and typically desirable N is the positive integers such as 1,2,3, realizes amplification.Conversely, when N is -1, -2, realizing that diminution is acted on.It is K value unit voltages 1V or 1A during N=0.In some cases, especially for current capacity signal survey calculation when, K values are associated with suitable magnitude of voltage in electric monitoring object, have actual electric physical significance, as utility grid takes K=220V, electrokinetic cell can take K=48V or 24V etc. according to its voltage nominal value.
S13, by predetermined time period reference power carry out time integral, acquisition refer to electric energy.
S14, electric state with reference to power analysis judged according to each period.
Wherein, when electric state is abnormal, abnormal judgement is comprised the following steps：The abnormal place period is refined, multiple time slices are decomposed into；Com-parison and analysis is carried out with reference to electric energy to each time slice, judge it is abnormal where the period, and in the intersegmental development and change of each time.
It is integrated signal with reference to electric energy, integrated signal is an accumulation amount, in the actual calculating of product user program in the present embodiment 1, what integral and calculating can be realized by the accumulation calculating of tiny time unit.
In a big time range, some preset time periods are segmented into, are segmented within such as 1 year 12 months, a hour is segmented into 60 minute sections etc., and predetermined time period is smaller, is more readily available the slight change amount of electric hidden danger.Specifically, preliminary hidden danger judgement can be carried out by being integrated to longer time section, then the period where hidden danger is refined, generates time slice but continuous with the moon, day, the hour even freezing data of the reference electric energy of the different time rank such as minute each other；Again by the way that with the freezing data of the reference electric energy of each period, electrical safety hidden danger monitoring and warning is realized in the monitoring electrically generation of abnormal hidden danger, the identification of hidden danger point location aided rebroadcast, hidden danger degree and hidden danger trend analysis.
The electric measurement method based on reference energy is explained below in conjunction with a kind of specific Electrical Measurement System.
A kind of Electrical Measurement System that the present embodiment is proposed includes：Signal acquisition module, control process module and input module, wherein：
Signal acquisition module is used to gather residual current as the first reference signal；
Control process module is connected with signal acquisition module, its be used for receive the first reference signal and by the first reference signal and default second reference signal customize constant K be multiplied obtain reference power, using the integral multiple such as 100V or 220V of standard voltage value, taken in 220V single phase power supply systems attempts
K=220V.Control process module is integrated computing to reference power, obtains the integrated value that is produced in predetermined time period as with reference to electric energy and carrying out storage and freezing, then electric state is judged according to the reference electric energy in each period；
Input module is connected with control process module, and it can be used for entering the operating instructions, and the second reference signal can also be preset by input module.
Reference power is that the first reference signal uses current signal in the product of current signal and voltage signal, the present embodiment, and the second reference signal uses voltage signal；When it is implemented, also can the first reference signal use voltage class signal, the second reference signal uses current signal, for example, the first reference signal uses the leakage voltage gathered by circuit under test, the second reference signal uses the integral multiple such as 1A of current standard value.
The reference electric energy that the present embodiment is related to, is not in most cases the direct physical electrical energy of physical presence in electric monitoring object, but reference energy virtually, but linearly proportional with voltage integrating meter or current integration.
At any time in section, the individual voltage signal of outside input or the strong and weak total amount accumulation of the continuity size of current signal numerical value decide the numerical value with reference to electric energy.Conversely, in random time section, it refers to the numerical values recited of electric energy, also directly reflect the degree change (quantitative change) total within the period of the individual voltage signal or electric current of outside input and change of properties (qualitative change).
It is above-mentioned customization constant that default second reference signal K, which is removed, and this patent, which also includes K, can realize the parameter of same effect for regular variable etc. is other.
Embodiment 2
The present embodiment 2 and the difference of embodiment 1 are that the second reference signal is the auxiliary signal that the human assistance module set inside device is produced.
The Electrical Measurement System for implementing the above-mentioned electric measurement method based on reference energy that the present embodiment 2 is provided includes：Signal acquisition module, control process module, human assistance module and input module, wherein：
Signal acquisition module is used for the output end voltage for gathering vehicle mounted dynamic battery as the first reference signal, and human assistance module is used for one auxiliary signal of generation and is used as the second reference signal；
Control process module is connected with signal acquisition module and human assistance module respectively, and it receives first reference signal and the second reference signal, and the first reference signal is multiplied with the second reference signal obtains reference power.Control process module is integrated computing to reference power, obtains the integrated value produced in predetermined time period as reference electric energy and is stored, then electric state is judged according to the reference electric energy in each period；
Input module is connected with control process module and can be used for entering the operating instructions.
Control process module in the present embodiment 2 can be realized using electric energy computation chip.
Reference power is that the first reference signal uses current signal in the product of current signal and voltage signal, the present embodiment 2, and the second reference signal uses voltage signal；When it is implemented, also can the first reference signal use voltage signal, the second reference signal uses current signal, for example, the first reference signal uses the residual voltage that is gathered by circuit under test, the second reference signal uses the integral multiple such as 1A of current standard value.
Electrical Measurement System in the present embodiment 2 also includes display module and communication module, wherein, control process module can be by the com-parison and analysis of the reference electric energy numerical value of each period, with reference to the practical working situation and environmental factor of electric monitoring object (electrokinetic cell), whether judgement produces battery failures hidden danger, for example under dead ship condition, the reference electric energy of larger negative direction change (voltage descent direction) is produced, then the voltage of battery has substantially electric leakage or battery performance declines.According to the different specific periods
With reference to electric energy numerical value difference; hidden danger degree and its variation tendency in the further labor variant period; then testing result is externally exported by display module and communication module; and record storage associated event data; acted simultaneously according to the electric timely early warning and alarming of the hidden danger order of severity or starting protection, take precautions against electric fault and deteriorate development.
The Electrical Measurement System that the present embodiment 2 is provided is particularly suitable for use in early monitoring in electric hidden danger, because the anomaly produced in early days in electric hidden danger is fainter, but the reference energy that high precision collecting processing is produced has " taking care of the pence " feature, the difference identification for the reference Electric energy accumulation amount that can lead in different time sections judges.
Embodiment 3
The emphasis of the present embodiment 3 is directed to：" residual voltage × zero-sequence current " of three-phase power supply system, single phase power supply system：" residual current × phase voltage ".
The electric measurement method based on reference energy that the present embodiment 3 is provided, comprises the following steps：
S31, no less than one initial signal pair of acquisition, each initial signal is constituted to the first reference signal and second reference signal that are gathered by one from circuit under test, first reference signal is current signal such as zero-sequence current, residual current, phase current etc., second reference signal is voltage signal such as residual voltage, phase voltage etc., and the first reference signal of at least one initial signal centering and second reference signal are homologous signal (being zero-sequence current and residual voltage in the present embodiment 3).
Existing electric energy metering chip technology is combined in S32, the present embodiment 3, by each signal to being connected respectively to electric energy computation chip submodule (including independent electric energy computation chip and the embedded electric energy metering module of microcontroller) correspondence input pin that control process module is included, the first reference signal of each initial signal centering is multiplied with the second reference signal by electric energy computation chip submodule, corresponding reference power is obtained；
S33, using electric energy metering chip technology, reference power is subjected to time integral, the reference electric energy in predetermined time period is obtained；
S34, control process module judge electric state according to reference to electric energy；
Wherein, when electric state is abnormal, the reference electric energy of abnormal place period is refined, multiple time slices are decomposed into；Each time slice is carried out with reference to electric energy com-parison and analysis and to store, judge it is abnormal where the period, and in the intersegmental development and change of each time.
In the electric measurement method based on reference energy, because at least one reference power is that the homologous signal multiplication exported by same bus is obtained, there is phase angle between homologous signal, so a variety of active electric parameters and idle electric parameter can be obtained, abundant electric parameter set is formed, to carry out multi-faceted judgement to electric state.
A kind of Electrical Measurement System for being used to implement the electric measurement method based on reference energy that the present embodiment 3 is proposed includes：First signal acquisition module, secondary signal acquisition module, control process module, input module, display module and communication module, control process module is connected with the first signal acquisition module, secondary signal acquisition module, input module, display module and communication module respectively, wherein：
First signal acquisition module be used for gather current signal for example zero-sequence current, residual current, phase current, etc. as the first reference signal；Secondary signal acquisition module is used as the second reference signal due to collection voltages signal such as residual voltage, phase voltage etc.；
Control process module is obtained no less than first reference signal and no less than one the second reference signal respectively from the first signal acquisition module and secondary signal acquisition module, and match be multiplied acquisition reference power, such as " zero-sequence current × residual voltage ", " residual current × phase voltage ", " phase current × phase voltage " to the first reference signal and the second reference signal.Control process module is integrated to each reference power, obtains multiple reference electric energy.
Because there is phase angle in homologous signal, control process module can be according to the first reference signal, the second reference signal, Current Voltage is subjected to product, and calculating is integrated to the time, acquisition refers to electric energy, and obtains to refer to electric parameter as the series of core with reference to electrical energy parameter to generate electric parameter set.Parameters in series precision height in electric parameter set, quantity are enriched, including various forward and reverse active reactives are with reference to electrical energy parameters such as electric energy, power, power directions, and reflect the electric parameters such as the fundamental wave and various harmonic voltages, electric current of real-time status.Electrical energy parameter therein can be with or without actual physics electrical sense, but it can intuitively reflect working condition and hidden danger degree (quantitative change), the hidden danger change of properties (quantitative change to qualitative change) and its variation tendency of electric monitoring object, the core foundation to the detection of electric monitoring object working condition, Diagnosis On Hidden Troubles and its analysis of trend early warning can be used as.
Then control process module externally exports testing result, and record storage associated event data by display module and communication module, while being acted according to the electric timely early warning and alarming of the hidden danger order of severity or starting protection, takes precautions against electric hidden danger and deteriorates development.Input module can be used for entering the operating instructions, and input module can specifically use key-press module or touch-screen.
The application is used as the series of core to refer to electric parameter with reference to electrical energy parameter, for different specific electric detection technique requirements, can be designed and various be implemented form.
" residual voltage × zero-sequence current " the product combination signal pair matched in the present embodiment 3, with reference to electric energy computation chip, parameters such as the time variation transient zero-sequence voltages and zero-sequence current easily disappeared with the time, conversion produces zero sequence with reference to electric energy freezing data, and obtain the positive active energy related to zero sequence, reverse active energy, positive reactive energy, reverse reactive energy, active power and its direction, reactive power and its direction, voltage, electric current, phase angle, frequency, and the reference fundamental active electric energy of refinement, fundamental active power, harmonic wave active energy, harmonic wave active power, harmonic wave reactive energy, harmonic wave reactive power, fundamental voltage, harmonic voltage, fundamental current, harmonic current, phasor power factor, harmonic wave
A large amount of high precision electric parameters such as power factor.According to actual particular technique demand, therefrom select suitable partial parameters, calculated again by control process module, obtain the suitable secondary operation parameter such as insulation impedance, capacitive reactance, dielectric loss angle, two parts separate sources supplemental characteristic collectively constitutes series and refers to electric parameter set, wherein using reference electrical energy parameter as core.
In the present embodiment 3, " residual current × phase voltage " product combination of pairing, by the analyzing and processing of electric energy computation chip, is obtained to refer to electric parameter set as the series of core with reference to electrical energy parameter.It is extremely important to analysis electric insulation hidden danger and electric disaster hidden-trouble situation for single phase power supply system, by active energy Ep therein, active-power P, residual current Is and phase voltage U etc., obtain line insulation impedance Rj.
Rj=U × U/P (U is the phase voltage of single phase power supply system)
In the present embodiment 3; the residual current produced for " residual current × phase voltage " product combination refers to active energy; substantially belong to the leakage electric energy by earth impedance; the reference active energy structure variables D ay_Ep of a description whole day total period and each sub-period is defined with C language, wherein claims hereof protection domain is not limited to these specific numerals：
During normal work, to the electric monitoring object reference active energy Ep that one group of record storage is referred in electrical energy parameter per hour, residual current resistive composition correlation active energy Day_Ep.hour [n] (wherein 0=of small period generation each daily is recorded respectively<N=<23) the active electricity of always leakage and tested daily
Energy Day_Ep.total, daily record storage is simultaneously shown.If the active energy Day_Ep.total numerical value that the active energy Day_Ep.total numeric ratios of certain day are produced for other days is significantly increased, further compare each small period active energy Day_Ep.hour [n], judge whether because the such environmental effects such as wet weather cause.
If it is determined that having generated electric insulation hidden danger, then further diagnostic process in detail, enables the active energy structure variable member such as by minimum time unit of minute more segmented：Day_Ep.minute [i] (wherein 0=<i<60), the hidden danger degree and hidden danger variation tendency of the electric monitoring object of labor, and according to the active energy numerical value difference of different periods, Added Management personnel accurately judge that the hidden danger results from some specific electrical equipments that different periods work is used, the electric wiring worked all the time is also generated from, electric fault hidden danger is taken precautions against and deteriorates development.
Embodiment 4
The present embodiment 4 and the difference of embodiment 3 are that what the present embodiment 4 was provided is used for the Electrical Measurement System for implementing the above-mentioned electric measurement method based on reference energy also including an artificial supplementary module, and it is connected with control process module.From electrical point, current signal is also converted into voltage signal by sample resistance, so being all voltage signal with the simulation input pin actual acquisition such as electric energy computation chip and ADC modulus conversion chips, so the auxiliary signal that human assistance module is provided is really voltage signal, realized using the modes such as bleeder circuit, voltage stabilizing pio chip are included.
In the present embodiment 4, the auxiliary signal that human assistance module is provided, current capacity signal or voltage class signal with outside collection can combinations of pairs.The actually one independent instrument that analysis is monitored by being counted to electric current.In numerous electric parameters by the product combination generation matched with human assistance signal, typically without phase relation, because of the mismatch of phase, the parameter such as its is active and reactive becomes no practical significance, but power and electric energy are that have the virtual reference power of important references meaning and refer to electric energy.
Embodiment 3 and embodiment 4 are a set of time variation transient voltage, current parameters by designing, and turn
The series for being changed to electrical energy parameter as core to be accumulated in time axis total amount refers to electric parameter set, and multi-faceted work and abnormality to electric monitoring object carries out the technical method of monitoring and diagnostic analysis in real time.Electrically detection and abnormity diagnosis are realized from electrical energy angle, especially for the middle early monitoring early warning analysis of electric hidden danger.The anomaly that electric hidden danger early stage produces is fainter, can integrate statistics accumulation at times into total amount parameter by high precision collecting technology, then carry out analysis judgement with being compared to each other and self comparing means；And the electric hidden danger middle and later periods, a variety of monitoring patterns and different time sections divided method are combined, increase the means progress diagnostic analysis such as usage trend analysis, can more clearly reflect hidden danger reason, hidden danger deterioration degree and its development trend.
Reference power is that the first reference signal uses current signal in the product of current signal and voltage signal, both examples above, and the second reference signal uses voltage signal；When it is implemented, also can the first reference signal use voltage signal, the second reference signal uses current signal.
It is described above; only the application preferably embodiment; but the protection domain of the application is not limited thereto; any one skilled in the art is in the technical scope that the application is disclosed; equivalent substitution or change are subject to according to the technical scheme of the application and its application design, should all be covered within the protection domain of the application.
Claims (7)
- A kind of electric measurement method based on reference energy, it is characterised in that comprise the following steps：First reference signal is gathered from circuit under test, the first reference signal is current signal or voltage signal；First reference signal is multiplied with second reference signal, reference power is obtained, the second reference signal is voltage signal or current signal；Reference power in predetermined time period is subjected to time integral, acquisition refers to electric energy；Electric state is judged with reference to electric energy according to each period.
- Electric measurement method as claimed in claim 1 based on energy, it is characterised in that when electric state is abnormal, comprise the following steps to abnormal judgement：The abnormal place period is refined, multiple time slices are decomposed into；Com-parison and analysis is carried out with reference to electric energy to each time slice, judge it is abnormal where the period, and in the intersegmental development and change of each time.
- Electric measurement method as claimed in claim 1 based on reference energy, it is characterised in that the second reference signal is predetermined constant.
- Electric measurement method as claimed in claim 1 based on reference energy, it is characterised in that the second reference signal is the auxiliary signal produced by the interior human assistance module set.
- A kind of electric measurement method based on reference energy, it is characterised in that comprise the following steps：Obtain at least one initial signal pair, each initial signal is constituted to the first reference signal and second reference signal that are gathered by one from circuit under test, first reference signal is current signal or voltage signal, second reference signal is voltage signal or current signal, and at least one initial signal pair In the first reference signal and second reference signal be the homologous signal with phase relation；First reference signal of each initial signal centering is multiplied with the second reference signal, corresponding reference power is obtained；Reference power in predetermined time period is subjected to time integral, acquisition refers to electric energy；Judge electric state according to reference to electric energy.
- Electric measurement method as claimed in claim 5 based on reference energy, it is characterized in that, the initial signal electric energy metering module or external electric energy computation chip embedded to being connected to microcontroller, the high precision electric parameter sets using reference electric energy as core are obtained, according to the multi-faceted judgement electric state of electric parameter set.
- Electric measurement method as claimed in claim 5 based on energy, it is characterised in that when electric state is abnormal, comprise the following steps to abnormal judgement：The abnormal place period is refined, multiple time slices are decomposed into；Com-parison and analysis is carried out with reference to electric energy to each time slice, judge it is abnormal where the period, and in the intersegmental development and change of each time.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445703 | 2014-08-28 | ||
| CN2014104457035 | 2014-08-28 | ||
| CN201410445704 | 2014-08-28 | ||
| CN201410445704X | 2014-08-28 | ||
| PCT/CN2015/085446 WO2016029773A1 (en) | 2014-08-28 | 2015-07-29 | Electrical measurement method based on reference energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106104282A true CN106104282A (en) | 2016-11-09 |
Family
ID=55398732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580007332.5A Pending CN106104282A (en) | 2014-08-28 | 2015-07-29 | A kind of electric measurement method based on reference energy |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106104282A (en) |
| WO (1) | WO2016029773A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736874A (en) * | 2019-10-16 | 2020-01-31 | 佛山市云米电器科技有限公司 | intelligent bathroom heater with electricity statistics function and electricity statistics method thereof |
| CN114460360A (en) * | 2022-04-12 | 2022-05-10 | 江西西平计量检测有限公司 | Detection method, system and device based on ammeter measurement current time integral |
| CN115759761A (en) * | 2023-01-06 | 2023-03-07 | 济宁市质量计量检验检测研究院(济宁半导体及显示产品质量监督检验中心、济宁市纤维质量监测中心) | Intelligent operation data management system for electric energy metering device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109389519B (en) * | 2018-09-18 | 2023-08-18 | 中国电力科学研究院有限公司 | Method and system for identifying abnormal energy value reverse metering |
| CN111796205B (en) * | 2020-07-08 | 2023-05-05 | 安徽先兆科技有限公司 | AC220V loop electric safety control method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890189A (en) * | 2011-07-21 | 2013-01-23 | 中兴通讯股份有限公司 | Electric quantity automatic statistical method and system for base station equipment |
| CN103187804A (en) * | 2012-12-31 | 2013-07-03 | 萧山供电局 | Station area electricity utilization monitoring method based on bad electric quantity data identification |
| CN203101507U (en) * | 2013-02-01 | 2013-07-31 | 辽宁邮电规划设计院有限公司 | Energy consumption monitoring system |
| CN103344824A (en) * | 2013-07-08 | 2013-10-09 | 国家电网公司 | Electric energy integration method based on time mark measurement |
| CN103646351A (en) * | 2013-11-08 | 2014-03-19 | 安徽科蓝智能技术有限公司 | Detection method for discriminating stealing event based on metering variations in electricity, water and gas |
| CN103675503A (en) * | 2012-09-14 | 2014-03-26 | 中华电信股份有限公司 | Abnormal state detection system and method for electrical equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4543781B2 (en) * | 2004-06-25 | 2010-09-15 | トヨタ自動車株式会社 | Power supply |
| JP4670413B2 (en) * | 2004-07-07 | 2011-04-13 | トヨタ自動車株式会社 | Power supply |
| JP4701767B2 (en) * | 2005-03-18 | 2011-06-15 | トヨタ自動車株式会社 | Power supply |
| CN101969230B (en) * | 2010-10-18 | 2014-09-10 | 吕纪文 | Power supply loop monitoring device and system |
| WO2012066643A1 (en) * | 2010-11-16 | 2012-05-24 | 古河電気工業株式会社 | Method and apparatus for detecting state of electrical storage device |
-
2015
- 2015-07-29 WO PCT/CN2015/085446 patent/WO2016029773A1/en active Application Filing
- 2015-07-29 CN CN201580007332.5A patent/CN106104282A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890189A (en) * | 2011-07-21 | 2013-01-23 | 中兴通讯股份有限公司 | Electric quantity automatic statistical method and system for base station equipment |
| CN103675503A (en) * | 2012-09-14 | 2014-03-26 | 中华电信股份有限公司 | Abnormal state detection system and method for electrical equipment |
| CN103187804A (en) * | 2012-12-31 | 2013-07-03 | 萧山供电局 | Station area electricity utilization monitoring method based on bad electric quantity data identification |
| CN203101507U (en) * | 2013-02-01 | 2013-07-31 | 辽宁邮电规划设计院有限公司 | Energy consumption monitoring system |
| CN103344824A (en) * | 2013-07-08 | 2013-10-09 | 国家电网公司 | Electric energy integration method based on time mark measurement |
| CN103646351A (en) * | 2013-11-08 | 2014-03-19 | 安徽科蓝智能技术有限公司 | Detection method for discriminating stealing event based on metering variations in electricity, water and gas |
Non-Patent Citations (2)
| Title |
|---|
| 付家才 等: "《电子式电能表的研究与应用》", 31 July 2007, 煤炭工业出版社 * |
| 金嘉民 等: "精益理念在反窃电项目中的应用", 《供用电》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736874A (en) * | 2019-10-16 | 2020-01-31 | 佛山市云米电器科技有限公司 | intelligent bathroom heater with electricity statistics function and electricity statistics method thereof |
| CN110736874B (en) * | 2019-10-16 | 2022-03-25 | 佛山市云米电器科技有限公司 | Electric quantity statistical method for intelligent bathroom heater |
| CN114460360A (en) * | 2022-04-12 | 2022-05-10 | 江西西平计量检测有限公司 | Detection method, system and device based on ammeter measurement current time integral |
| CN114460360B (en) * | 2022-04-12 | 2022-07-01 | 江西西平计量检测有限公司 | Detection method, system and device based on ammeter measurement current time integral |
| CN115759761A (en) * | 2023-01-06 | 2023-03-07 | 济宁市质量计量检验检测研究院(济宁半导体及显示产品质量监督检验中心、济宁市纤维质量监测中心) | Intelligent operation data management system for electric energy metering device |
| CN115759761B (en) * | 2023-01-06 | 2023-06-23 | 济宁市质量计量检验检测研究院(济宁半导体及显示产品质量监督检验中心、济宁市纤维质量监测中心) | Intelligent operation data management system for electric energy metering device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016029773A1 (en) | 2016-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102662113B (en) | Comprehensive diagnosis method of oil-immersed transformer based on fault tree | |
| CN106104282A (en) | A kind of electric measurement method based on reference energy | |
| CN102170124B (en) | Early warning method of stable-state index of power quality | |
| CN107680368A (en) | A kind of metering device on-line monitoring and intelligent diagnosing method based on gathered data | |
| CN103199514B (en) | Method of eliminating ferromagnetic resonances | |
| CN105512474A (en) | Transformer state monitoring data anomaly detection method | |
| CN109298379A (en) | A kind of recognition methods of the intelligent electric meter site error exception based on data monitoring | |
| CN106646034B (en) | A kind of arrester structural health on-line monitoring analysis system | |
| CN109270482B (en) | Online evaluation method for metering accuracy of voltage transformer and terminal equipment | |
| CN106093796B (en) | Lithium battery capacity and life-span prediction method in the case of having capacity regeneration based on regression criterion reconstruction in frequency-domain | |
| CN106771895A (en) | A kind of cable degradation detecting method based on magnetic field harmonics detection | |
| CN109613372B (en) | Power grid fault diagnosis method based on multi-element power grid database | |
| Wang et al. | Identification of series arc fault occurred in the three-phase motor with frequency converter load circuit via VMD and entropy-based features | |
| CN111999695B (en) | State evaluation and abnormity diagnosis method for metering device of transformer substation | |
| CN101957436B (en) | Power supply quality tester of IT (Information Technology) server equipment and test method | |
| Liu et al. | Identification of major power quality disturbance sources in regional grid based on monitoring data correlation analysis | |
| CN111638401A (en) | Capacitor online monitoring system and method | |
| CN109596947B (en) | Electrical insulation aging monitoring and early warning method and device based on insulation conductance | |
| CN111666870A (en) | Power signal reconstruction method and system by utilizing quadratic constraint | |
| CN113267711B (en) | On-line monitoring system and method for insulation state of high-voltage electrical equipment of transformer substation | |
| CN114839462A (en) | Intelligent anti-electricity-stealing monitoring method and system | |
| Zhang et al. | Online detection of measurement error in three-phase CVT based on equivariant adaptive source separation | |
| Jian et al. | Automated monitoring and analysis for high voltage circuit breaker | |
| Gao et al. | Quantitative research on accumulative effect of transformer winding deformation and its influence degree based on time-frequency analysis of vibration signal | |
| Qingfeng et al. | Fault detection of rectifier based on residuals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |