CN107203152A - A kind of energy-saving device and economize on electricity weight testing method - Google Patents
A kind of energy-saving device and economize on electricity weight testing method Download PDFInfo
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- CN107203152A CN107203152A CN201710455957.9A CN201710455957A CN107203152A CN 107203152 A CN107203152 A CN 107203152A CN 201710455957 A CN201710455957 A CN 201710455957A CN 107203152 A CN107203152 A CN 107203152A
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
A kind of energy-saving device and economize on electricity weight testing method that the present invention is provided, are related to amount of electricity saving detection field.By controlling energy-saving device to be switched in energy-saving mode and bypass mode, data acquisition unit gathers economize on electricity test data of the energy-saving device in economize on electricity test, the amount of electricity saving loaded when making processing and control element (PCE) calculate energy-saving device operation based on economize on electricity test data；Data acquisition unit is acquired with prefixed time interval to the electric parameter of energy-saving device input, when electric parameter variable quantity exceedes predetermined threshold value, new economize on electricity test is carried out, to adapt to the change of electric load, is solved in the prior art because electric load time variation causes the problem of test result is inaccurate；Processing and control element (PCE) carries out Effective judgement when receiving economize on electricity test data, when test data of economizing on electricity is unsatisfactory for validity, proceed economize on electricity test to energy-saving device, the calculating of next step is just carried out when test data of economizing on electricity meets validity, it is ensured that the accuracy of amount of electricity saving detection.
Description
Technical field
The present invention relates to amount of electricity saving detection field, in particular to a kind of energy-saving device and economize on electricity weight testing method.
Background technology
The operating condition of electrical equipment changes and changed with technical load, and being actually used in the electrical power of acting will not keep permanent
Fixed constant, the electric flux consumed in same time period also will not be equal.Conventional economize on electricity test can only be in external acting and power network
In the case that power supply keeps constant, the operating mode different time sections such as utilize to do electric degree contrast, for the time variation of current power load,
This kind of traditional test methods just do not possess practicality, and the data tested out do not have authenticity and reliability yet.
The content of the invention
It is an object of the invention to provide a kind of energy-saving device and economize on electricity weight testing method, by being saved to energy-saving device
Electrical testing, energy-saving device is switched in energy-saving mode and bypass mode, and data acquisition unit gathers energy-saving device in economize on electricity
Economize on electricity test data in test, makes processing and control element (PCE) be based on loading when economize on electricity test data calculates energy-saving device operation
Amount of electricity saving；Data acquisition unit is acquired with prefixed time interval to the electric parameter of energy-saving device input, in electric parameter
When change exceedes predetermined threshold value, new economize on electricity test is carried out, is become with adapting to load electric parameter caused by change or power source change etc.
Change, solve in the prior art because electric load time variation causes the problem of test result is inaccurate；Processing and control element (PCE) is being received
Effective judgement is carried out to economize on electricity test data to during economize on electricity test data, it is right when test data of economizing on electricity is unsatisfactory for validity
Energy-saving device proceeds economize on electricity test, and the calculating of next step is just carried out when test data of economizing on electricity meets validity, it is ensured that
Amount of electricity saving detection it is true and reliable.
What the present invention was realized in：
A kind of energy-saving device, the input connection three phase mains of the energy-saving device, the output end of the energy-saving device connects
Connect the gauge table and amount of electricity saving test dress being attached with load, the energy-saving device for recording the three phase mains information
Put, the economize on electricity test device includes data acquisition unit and processing and control element (PCE), the processing and control element (PCE) and the data
Collecting unit is electrically connected with, and the data acquisition unit is electrically connected with the gauge table；
The data acquisition unit is used for the electric parameter data that the energy-saving device input is gathered with prefixed time interval,
The electric parameter data is sent to the processing and control element (PCE), wherein, the electric parameter data includes each mutually electricity of three-phase circuit
Pressure and each phase power factor；
The processing and control element (PCE) is compared currently received electric parameter data with the preceding electric parameter data once received
It is right, when comparison result meets test condition, economize on electricity test is carried out to the energy-saving device.
Further, the data acquisition unit is additionally operable to when carrying out economize on electricity test to the energy-saving device, collection section
The electric degree reading of electrical test data and the gauge table is simultaneously sent to the processing and control element (PCE)；
The processing and control element (PCE) is when the economize on electricity test data received meets default condition for validity, based on described
Economize on electricity test data and the electric degree reading calculate economize on electricity data.
Further, the processing and control element (PCE) is unsatisfactory for described default effective in the economize on electricity test data received
During condition, economize on electricity next time is carried out to the energy-saving device and is tested, until economize on electricity test data meets the default condition for validity.
Further, the amount of electricity saving test device also includes transmitting element, and the transmitting element is controlled with the processing
Unit is electrically connected with；
The transmitting element is used to be sent out the electric parameter data, the economize on electricity test data and the economize on electricity data
Send.
One kind economize on electricity weight testing method, applied to above-mentioned energy-saving device, the amount of electricity saving test device also include with it is described
The transmitting element that processing and control element (PCE) is electrically connected with, the economize on electricity weight testing method includes：
The data acquisition unit gathers the electric parameter data of the energy-saving device input with prefixed time interval, sends
The electric parameter data to the processing and control element (PCE), wherein, each phase voltage of the electric parameter data including three-phase circuit and
Each phase power factor；
The processing and control element (PCE) receives the electric parameter data, when the electric parameter data meets default test condition
Economize on electricity test is carried out to the energy-saving device, the data acquisition unit collection economize on electricity test data is simultaneously sent to the processing control
Unit processed；
The processing and control element (PCE) is when the economize on electricity test data received meets default condition for validity, based on described
Economize on electricity test data calculates economize on electricity data；
The electric parameter data, the economize on electricity test data and the economize on electricity data are transmitted by the transmitting element.
Further, the processing and control element (PCE) receives the electric parameter data, when the electric parameter data meets default
Economize on electricity test is carried out during test condition to the energy-saving device, the data acquisition unit collection economize on electricity test data is simultaneously sent extremely
The step of processing and control element (PCE), includes：
The processing and control element (PCE) receives electric parameter data, by currently received electric parameter data and the preceding electricity once received
Parametric data is compared, when comparison result meets test condition, and economize on electricity test is carried out to the energy-saving device；
The data acquisition unit collection economize on electricity test data is simultaneously sent to the processing and control element (PCE)；
The processing and control element (PCE) is when the economize on electricity test data received is unsatisfactory for default condition for validity, the place
Reason control unit controls the data acquisition unit to delete this economize on electricity test data, the energy-saving device is carried out next
Partial node electrical testing, until economize on electricity test data meets the default condition for validity.
Further, the data acquisition unit gathers the electric parameter of the energy-saving device input with prefixed time interval
Data, send the electric parameter data to the processing and control element (PCE), wherein, the electric parameter data includes each of three-phase circuit
Phase voltage and each phase power factor, the step of processing and control element (PCE) receives the electric parameter data include：
The processing and control element (PCE) receives electric parameter data, and currently received each phase voltage is once received with preceding respectively
Each phase voltage be compared, currently received each phase power factor is carried out with preceding each phase power factor for once receiving respectively
Compare, when the changing value of the voltage of any phase and the preceding voltage once received in currently received three-phase voltage exceedes predeterminated voltage
Value or the changing value when the power factor of any phase and the preceding power factor once received in currently received three-phase activity coefficient
During more than predetermined power factor value, economize on electricity test is carried out to the energy-saving device.
Further, the mode of operation of the energy-saving device includes energy-saving mode and bypass mode, the data acquisition list
Member gathers economize on electricity test data and included the step of transmission to the processing and control element (PCE)：
The mode of operation of the energy-saving device is switched under energy-saving mode, the data acquisition unit collection energy-saving mode
The first active power and the first reactive power of the energy-saving device input；
The mode of operation of the energy-saving device is switched under bypass mode, the data acquisition unit collection bypass mode
The second active power and the second reactive power of the energy-saving device input；
The mode of operation of the energy-saving device is switched under energy-saving mode, the data acquisition unit collection energy-saving mode
The 3rd active power and the 3rd reactive power of the energy-saving device input, complete the economize on electricity test；
The positive active electrical degree reading and forward direction of gauge table described in the data acquisition unit collection economize on electricity test process
Idle electric degree reading；
The data acquisition unit sends the economize on electricity test data to the processing and control element (PCE), wherein, the economize on electricity
Test data include the positive active electrical degree reading, positive idle electric degree reading, the first active power, the first reactive power,
Second active power, the second reactive power, the 3rd active power and the 3rd reactive power.
Further, the processing and control element (PCE) is unsatisfactory for default condition for validity in the economize on electricity test data received
When, the processing and control element (PCE) controls the data acquisition unit to delete this economize on electricity test data, and the economize on electricity is set
It is standby to carry out economize on electricity test next time, include the step of test data of economizing on electricity meets the default condition for validity：
First active power received and the 3rd active power are compared the processing and control element (PCE),
When the rate of change of the 3rd active power based on first active power exceedes default rate of change, the processing control is single
The member control data acquisition unit deletes this economize on electricity test data, and economize on electricity next time is carried out to the energy-saving device and is tested,
Until the rate of change of the 3rd active power based on first active power is no more than the default rate of change.
Further, the processing and control element (PCE) meets default condition for validity in the economize on electricity test data received
When, the step of calculating economize on electricity data based on the economize on electricity test data includes：
The processing and control element (PCE) is when the economize on electricity test data received meets default condition for validity, the processing
Control unit calculates according to first active power and second active power and draws active power saving rate, according to described first
Reactive power and second reactive power, which are calculated, draws idle power saving rate；
The processing and control element (PCE) calculates active according to the active power saving rate and the positive active electrical degree reading
Electric degree saving, idle electric degree saving is calculated according to the idle power saving rate and the positive idle electric degree reading；
The processing and control element (PCE) is calculated according to the active electrical degree saving and the positive active electrical degree reading
Active electrical degree reading under non-electricity-saving state, is calculated according to the idle electric degree saving and the positive idle electric degree reading
The idle electric degree reading gone out under non-electricity-saving state；
The processing and control element (PCE) is according to the idle electricity under the active electrical degree reading and electricity-saving state under the electricity-saving state
Degree reading calculates the average power factor under energy-saving mode, according to the active electrical degree reading under the non-electricity-saving state and institute
State the idle electric degree reading under non-electricity-saving state and calculate average power factor under non-energy-saving mode；
The processing and control element (PCE) obtains the first power rate regulation coefficient according to the average power factor under the energy-saving mode,
Second power rate regulation coefficient is obtained according to the average power factor under the non-energy-saving mode；
The processing and control element (PCE) is according to the first power rate regulation coefficient, the second power rate regulation coefficient, positive active electricity
Degree reading, active electrical degree saving, the active electrical degree reading under non-electricity-saving state and electricity price calculate economize on electricity income, the section
Electric data include the active power saving rate, idle power saving rate, active electrical degree saving, idle electric degree saving, non-electricity-saving state
Under active electrical degree reading, the idle electric degree reading under non-electricity-saving state, the average power factor under energy-saving mode, non-economize on electricity mould
Average power factor, the first power rate regulation coefficient, the second power rate regulation coefficient and economize on electricity income under formula.
Compared with the prior art, the invention has the advantages that：A kind of energy-saving device and amount of electricity saving that the present invention is provided
Method of testing, by carrying out economize on electricity test to energy-saving device, energy-saving device is switched in energy-saving mode and bypass mode, number
Economize on electricity test data of the energy-saving device in economize on electricity test is gathered according to collecting unit, processing and control element (PCE) is based on economize on electricity test number
According to the amount of electricity saving loaded when calculating energy-saving device operation；Data acquisition unit is inputted with prefixed time interval to energy-saving device
The electric parameter at end is acquired, and when electric parameter change exceedes predetermined threshold value, new economize on electricity test is carried out, to adapt to load change
Or electric parameter change caused by power source change etc., solve in the prior art because electric load time variation causes test result inaccurate
The problem of；Processing and control element (PCE) carries out Effective judgement when receiving economize on electricity test data to economize on electricity test data, works as economize on electricity
When test data is unsatisfactory for validity, proceed economize on electricity test to energy-saving device, until economize on electricity test data meets validity
When just carry out next step calculating, it is ensured that amount of electricity saving detection it is true and reliable.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.Therefore, reality of the invention below to providing in the accompanying drawings
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Fig. 1 shows a kind of structural representation for energy-saving device that first embodiment of the invention is provided.
Fig. 2 shows a kind of another structural representation for energy-saving device that first embodiment of the invention is provided.
Fig. 3 shows a kind of schematic flow sheet for economize on electricity weight testing method that second embodiment of the invention is provided.
Icon：100- energy-saving devices；110- amount of electricity saving test devices；111- processing and control element (PCE)s；113- data acquisition lists
Member；115- transmitting elements；130- gauge tables.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be arranged and designed with a variety of configurations herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
First embodiment
Referring to Fig. 1, Fig. 1 shows a kind of structural representation for energy-saving device that first embodiment of the invention is provided.
Energy-saving device 100 is connected between three phase mains and load, and the input and three phase mains of energy-saving device 100 are electrical
Connection, output end and the load of energy-saving device 100 are electrically connected with, for saving its power consumption when loading electricity consumption.Energy-saving device
100 include amount of electricity saving test device 110 and gauge table 130, and amount of electricity saving test device 110 includes the sum of processing and control element (PCE) 111
According to collecting unit 113, processing and control element (PCE) 111 is electrically connected with data acquisition unit 113, data acquisition unit 113 and metering
Table 130 is electrically connected with.
In the present embodiment, gauge table 130 is used to record information about power of the three phase mains for load supply.
In the present embodiment, data acquisition unit 113 is used for the electricity that the input of energy-saving device 100 is gathered with prefixed time interval
Parametric data is sent to processing and control element (PCE) 111.Wherein, electric parameter data includes each phase voltage and each phase power of three phase mains
Factor.
In the present embodiment, processing and control element (PCE) 111 receives the electric parameter data of each time interval.By currently received electricity
Parametric data is compared with the electric parameter data that previous interval is received, when any phase in currently received three-phase voltage
The difference of voltage and the preceding voltage once received exceedes preset voltage value or when any phase in currently received three-phase activity coefficient
The difference of power factor and the preceding power factor once received when exceeding predetermined power factor value, energy-saving device 100 is carried out
Economize on electricity test.The electric parameter data being currently received is changed greatly with previous electric parameter data, characterizes load or power supply occurs
Change is, it is necessary to carry out economize on electricity test accurately to calculate amount of electricity saving.
In the present embodiment, when economize on electricity test is carried out to energy-saving device 100, in the collection economize on electricity test of data acquisition unit 113
Economize on electricity test data and send to processing and control element (PCE) 111.Wherein, economize on electricity test data is adopted including data acquisition unit 113
The electric degree reading of the gauge table 130 collected.111 pairs of economize on electricity test datas of processing and control element (PCE) have according to default condition for validity
Effect property judges that, when test data of economizing on electricity meets condition for validity, processing and control element (PCE) 111 is read according to economize on electricity test data and electric degree
Number calculates economize on electricity data.If economize on electricity test data is unsatisfactory for condition for validity, next economize on electricity is carried out to energy-saving device 100 and is surveyed
Examination, until economize on electricity test data meets condition for validity, processing and control element (PCE) 111 just carries out economize on electricity data and calculated, it is ensured that economize on electricity
Data calculate reliability, it is ensured that result of calculation it is accurate.
Referring to Fig. 2, Fig. 2 shows a kind of another structural representation for energy-saving device that first embodiment of the invention is provided.
Amount of electricity saving test device 110, in addition to the transmitting element 115 being electrically connected with processing and control element (PCE) 111.
In the present embodiment, transmitting element 115 is used to be sent out electric parameter data, economize on electricity test data and economize on electricity data
Send.
In the preferred embodiment of the present embodiment, transmitting element 115 sends data to remote terminal so that staff enters
Row is monitored or processing data in real time.
Second embodiment
Referring to Fig. 3, Fig. 3 shows that a kind of flow for economize on electricity weight testing method that second embodiment of the invention is provided is shown
It is intended to.
In the present embodiment, economize on electricity weight testing method be applied to first embodiment described in energy-saving device 100, its by with
Lower step is realized：
Step S201：The electric parameter data of the collection input of energy-saving device 100 of data acquisition unit 113 is simultaneously sent to processing
Control unit 111.
In the present embodiment, each phase voltage for the electric parameter data including three phase mains that data acquisition unit 113 is gathered and each
Phase power factor.Wherein, Ua、UbAnd UcThe respectively voltage of A, B, C three-phase, cos θa、cosθbAnd cos θcRespectively corresponding work(
Rate factor, the data inputting table (one) of collection.
Table (one)
Wherein, 1,2, n and the vertical columns of n+1 represent to gather the number of times of electric parameter data, horizontal bar table with prefixed time interval
Levy the specific data of electric parameter data.
Step S202：When the electric parameter data that processing and control element (PCE) 111 is received meets default test condition, economize on electricity is set
Standby 100 carry out economize on electricity test, and the collection of data acquisition unit 113 economize on electricity test data is simultaneously sent to processing and control element (PCE) 111.
Step S202 can be divided into two steps of sub-step S2021 and sub-step S2022 to realize：
Sub-step S2021：The electric parameter data that 111 pairs of processing and control element (PCE) is received is sentenced with default test condition
It is disconnected.
In the present embodiment, processing and control element (PCE) 111 first carries out computing judgement to the electric parameter data received, current to receive
Each phase voltage be compared respectively with the preceding each phase voltage once received, by currently received each phase power factor respectively with
The preceding each phase power factor once received is compared, when the voltage of any phase once connects with preceding in currently received three-phase voltage
The changing value of the voltage of receipts exceed preset voltage value or when in currently received three-phase activity coefficient the power factor of any phase with
When the changing value of the preceding power factor once received exceedes predetermined power factor value, economize on electricity test is carried out to energy-saving device 100, lifted
Under for example：
|Ua n-Ua n+1|≥1V；
|Ub n-Ub n+1|≥1V；
|Uc n-Uc n+1|≥1V；
|cosθa n-cosθa n+1|≥0.05；
|cosθb n-cosθb n+1|≥0.05；
|cosθc n-cosθc n+1|≥0.05。
Wherein, voltage and the subscript n of power factor or (n+1) represent n-th in each expression formula or the (n+1) is secondary collects
Electric parameter data.Preset voltage value is preferably 1V, or other numerical value；Predetermined power factor is preferably 0.05, also may be used
Think other numerical value.
Either condition in above-mentioned six conditions is met, that is, meets default test condition, energy-saving device 100 is economized on electricity
Test, flow enters sub-step S2022.If the electric parameter received is unsatisfactory for test condition, flow proceeds step
S201。
Sub-step S2022：Economize on electricity test, the collection economize on electricity test data of data acquisition unit 113 are carried out to energy-saving device 100
And send to processing and control element (PCE) 111.
In the present embodiment, the mode of operation of energy-saving device 100 includes energy-saving mode and bypass mode.Wherein, energy-saving mode
Accessed for energy-saving device 100 between load and three phase mains, three phase mains is accessed after being handled via 100 pairs of electricity of energy-saving device
Load；Bypass mode is that energy-saving device 100 is not accessed between load and three phase mains, and three phase mains is not via energy-saving device
100, directly load is powered.When economize on electricity test is carried out to energy-saving device 100, it is divided into three phases：
First stage, the mode of operation of energy-saving device 100 is switched into energy-saving mode, now load has been put into economize on electricity work
Operation mode, data acquisition unit 113 gathers the first active-power P that a certain moment energy-saving device 100 is inputted in this stageT1With
First reactive power QT1。
Second stage, bypass mode is switched to by the mode of operation of energy-saving device 100, and now loaded work piece is in non-economize on electricity mould
Formula, data acquisition unit 113 gathers the second active-power P that a certain moment energy-saving device 100 is inputted in this stageT2With second
Reactive power QT2。
Phase III, the mode of operation of energy-saving device 100 is switched into energy-saving mode, now load has been put into economize on electricity work
Operation mode, data acquisition unit 113 gathers the 3rd active-power P that a certain moment energy-saving device 100 is inputted in this stageT3With
3rd reactive power QT3.Now, once economize on electricity test is completed, the forward direction of gauge table 130 when the record of data acquisition unit 113 is completed
Active electrical degree EP and positive idle electric degree EQ.
Economize on electricity test data typing table (two)：
Table (two)
Step S203：Whether economize on electricity test data is effectively judged.
In the present embodiment, the economize on electricity test data that 111 pairs of processing and control element (PCE) is received is carried out with default condition for validity
Effective judgement.By the first active-power P of first stageT1With the 3rd active-power P of phase IIIT3It is compared, when
Three active-power PsT3Based on the first active-power PT1Rate of change when being no more than default rate of change, judge that this economize on electricity test has
Effect, flow enters step S204.
Calculate deterministic process as follows：
Wherein, it is preferably 1% in formula to preset rate of change, or other numerical value.
The condition for validity of above formula is being met, characterizing now energy-saving device 100, three phase mains and the work of load tends to be steady
Fixed, without too big electric quantity change, the economize on electricity data that can carry out next step are calculated.If being unsatisfactory for condition for validity, continue
Economize on electricity test is carried out, untill test data meets condition for validity.
Step S204：Processing and control element (PCE) 111 is based on when the economize on electricity test data received meets default condition for validity
Economize on electricity test data calculates economize on electricity data.
After confirming the validity, power saving rate is calculated, such as following formula：
Wherein,The active power saving rate of ith economize on electricity test is represented,Represent the idle economize on electricity of ith economize on electricity test
Rate, PT1 iRepresent the first active power of ith economize on electricity test, PT2 iRepresent the second active power of ith economize on electricity test, QT1 i
Represent the first reactive power of ith economize on electricity test, QT2 iRepresent the second reactive power of ith economize on electricity test.
Every time after the completion of economize on electricity test, energy-saving device 100 operates in electricity-saving state, and processing and control element (PCE) 111 is thought
It keeps constant power saving rate, until load changes, starts economize on electricity test next time, if specifically economized on electricity by data analysis
Effectively, then energy-saving device 100 continues power-saving running to test data, and power saving rate is the new data that this test is obtained；Conversely, such as
Really this economize on electricity test data is invalid, then deletes this test data, and processing and control element (PCE) 111 continues to control energy-saving device 100
Power-saving running, and think that now power saving rate keeps constant.
After power saving rate is calculated, amount of electricity saving calculating is carried out.In the test data that will economize on electricity, after the completion of economize on electricity test for the first time
Obtained active electrical degree is designated as EP1, obtained idle electric degree is designated as EQ after the completion of economize on electricity test for the first time1, then correspondingly, i-th
The active electrical degree obtained after the completion of partial node electrical testing is designated as EPi, obtained idle electric degree is designated as after the completion of ith economize on electricity test
EQi.Then in a metering period, active electrical degree saving EPjWith idle electric degree saving EQjIt can be drawn by following formula：
Wherein, i is the number of times of economize on electricity test, and n is natural number.
If the active electrical degree reading under non-energy-saving mode is designated as into the active electrical degree EP under EPw, non-electricity-saving stateWFor section
Active electrical degree EP and active electrical degree saving EP under electricity conditionjSum；If the idle electric degree reading under non-energy-saving mode is remembered
For EQw, then the idle electric degree EQw under non-electricity-saving state is the idle electric degree EQ and idle electric degree saving EQ under electricity-saving statej
Sum, can be drawn by following formula：
EPw=EP+EPj；
EQw=EQ+EQj。
Thus, the average power factor PF of the average power factor PFw of non-electricity-saving state and electricity-saving statejCan be under
Formula is tried to achieve：
The power rate electricity charge refer to that power consumer inductive load reactive power consumption amount is excessive, cause power factor to be less than national standard,
So as to the electricity charge recovered by the percentage of electricity charge volume, non-power save mode average power factor PFwCorresponding power rate regulation coefficient βwWith
Power save mode average power factor PFjCorresponding power rate regulation coefficient βjCan be by looking into《Power rate regulation coefficient table》Data are obtained, are led to
Cross following formula and try to achieve total economize on electricity income M：
M=EPj× electricity price δ+(EPw×βw- EP × βj) × electricity price δ.
Wherein, (EPj× electricity price δ) it is active electrical degree power cost saving, ((EPw×βw- EP × βj) × electricity price δ) it is idle electricity
Spend power cost saving.
Economize on electricity data are charged in table (three)：
Table (three)
Step S205：Electric parameter data, economize on electricity test data and economize on electricity data are transmitted.
In the present embodiment, step S205 can be realized by the transmitting element 115 described in first embodiment.Transmitting element
115 are transmitted electric parameter data, economize on electricity test data and economize on electricity data.It can send to terminal devices such as remote terminals
In, it is easy to staff to carry out monitoring or data processing in real time.Wherein, electric parameter data, economize on electricity test data and economize on electricity data
It can be transmitted by recording three forms of respective data respectively.
When in step S203, the 3rd active-power PT3Based on the first active-power PT1Rate of change exceed default rate of change
When, judge this economize on electricity test invalidation, flow enters step S206.
Step S206：This economize on electricity test data is deleted, proceeds economize on electricity test until economize on electricity test data meets pre-
If condition for validity.
In the present embodiment, after economize on electricity test judgement is invalid, then delete after this time economize on electricity test data, flow returns to step
S202 proceeds economize on electricity test, tests economize on electricity the measuring point test data produced and carries out availability deciding, until economize on electricity test
The effectively rear flow of data judging can just enter step S204.
In the present embodiment, when test data of economizing on electricity is unsatisfactory for default condition for validity, economize on electricity test next time is carried out.If
Default condition for validity is still unsatisfactory for, with regard to carrying out economize on electricity test always, test data meets default condition for validity until economizing on electricity, really
Accept the stabilization of load, it is ensured that the accuracy that follow-up amount of electricity saving is calculated.
In summary, the invention provides a kind of energy-saving device and economize on electricity weight testing method, by being carried out to energy-saving device
Economize on electricity test, energy-saving device is switched in energy-saving mode and bypass mode, and data acquisition unit gathers energy-saving device in section
Economize on electricity test data in electrical testing, makes processing and control element (PCE) be based on bearing when economize on electricity test data calculates energy-saving device operation
The amount of electricity saving of load；Data acquisition unit is acquired with prefixed time interval to the electric parameter of energy-saving device input, in electricity ginseng
When amount change exceedes predetermined threshold value, new economize on electricity test is carried out, to adapt to electric parameter caused by load change or power source change etc.
Change, is solved in the prior art because electric load time variation causes the problem of test result is inaccurate；Processing and control element (PCE) is connecing
Effective judgement is carried out to economize on electricity test data when receiving economize on electricity test data, when test data of economizing on electricity is unsatisfactory for validity,
Proceed economize on electricity test to energy-saving device, the calculating of next step is just carried out when test data of economizing on electricity meets validity, is protected
The true and reliable of amount of electricity saving detection is demonstrate,proved.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, the instruction such as term " on ", " under ", "left", "right", " interior ", " outer "
Orientation or position relationship be that, based on orientation shown in the drawings or position relationship, or the invention product is usually put when using
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than indicate or imply signified device
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of energy-saving device, it is characterised in that the input connection three phase mains of the energy-saving device, the energy-saving device
Gauge table and the economize on electricity for recording the three phase mains information are attached with output end connection load, the energy-saving device
Test device is measured, the amount of electricity saving test device includes data acquisition unit and processing and control element (PCE), the processing and control element (PCE)
It is electrically connected with the data acquisition unit, the data acquisition unit is electrically connected with the gauge table；
The data acquisition unit is used for the electric parameter data that the energy-saving device input is gathered with prefixed time interval, sends
The electric parameter data to the processing and control element (PCE), wherein, each phase voltage of the electric parameter data including three-phase circuit and
Each phase power factor；
Currently received electric parameter data is compared the processing and control element (PCE) with the preceding electric parameter data once received, when
When comparison result meets test condition, economize on electricity test is carried out to the energy-saving device.
2. energy-saving device as claimed in claim 1, it is characterised in that the data acquisition unit is additionally operable to the economize on electricity
When equipment carries out economize on electricity test, the electric degree reading of collection economize on electricity test data and the gauge table is simultaneously sent to the processing control
Unit；
The processing and control element (PCE) is when the economize on electricity test data received meets default condition for validity, based on the economize on electricity
Test data and the electric degree reading calculate economize on electricity data.
3. energy-saving device as claimed in claim 1, it is characterised in that the processing and control element (PCE) is in the economize on electricity received
When test data is unsatisfactory for the default condition for validity, economize on electricity next time is carried out to the energy-saving device and is tested, until economize on electricity is surveyed
Examination data meet the default condition for validity.
4. energy-saving device as claimed in claim 2 or claim 3, it is characterised in that the amount of electricity saving test device also includes sending single
Member, the transmitting element is electrically connected with the processing and control element (PCE)；
The transmitting element is used to the electric parameter data, the economize on electricity test data and the economize on electricity data being transmitted.
5. one kind economize on electricity weight testing method, applied to the energy-saving device as described in any one of Claims 1-4, it is characterised in that
The amount of electricity saving test device also includes the transmitting element being electrically connected with the processing and control element (PCE), the amount of electricity saving test side
Method includes：
The data acquisition unit gathers the electric parameter data of the energy-saving device input with prefixed time interval, sends described
Electric parameter data to the processing and control element (PCE), wherein, the electric parameter data includes each phase voltage and each phase of three-phase circuit
Power factor；
The processing and control element (PCE) receives the electric parameter data, when the electric parameter data meets default test condition to institute
State energy-saving device and carry out economize on electricity test, the data acquisition unit collection economize on electricity test data simultaneously sends single to the processing control
Member；
The processing and control element (PCE) is when the economize on electricity test data received meets default condition for validity, based on the economize on electricity
Test data calculates economize on electricity data；
The electric parameter data, the economize on electricity test data and the economize on electricity data are transmitted by the transmitting element.
6. economize on electricity weight testing method as claimed in claim 5, it is characterised in that the processing and control element (PCE) receives the electricity ginseng
Data are measured, economize on electricity test, the data are carried out to the energy-saving device when the electric parameter data meets default test condition
Collecting unit gathers economize on electricity test data and included the step of transmission to the processing and control element (PCE)：
The processing and control element (PCE) receives electric parameter data, by currently received electric parameter data and the preceding electric parameter once received
Data are compared, when comparison result meets test condition, and economize on electricity test is carried out to the energy-saving device；
The data acquisition unit collection economize on electricity test data is simultaneously sent to the processing and control element (PCE)；
The processing and control element (PCE) is when the economize on electricity test data received is unsatisfactory for default condition for validity, the processing control
Unit processed controls the data acquisition unit to delete this economize on electricity test data, and next partial node is carried out to the energy-saving device
Electrical testing, until economize on electricity test data meets the default condition for validity.
7. economize on electricity weight testing method as claimed in claim 6, it is characterised in that the data acquisition unit is between preset time
Every the electric parameter data for gathering the energy-saving device input, the electric parameter data is sent to the processing and control element (PCE), its
In, the electric parameter data includes each phase voltage and each phase power factor of three-phase circuit, and the processing and control element (PCE) receives institute
The step of stating electric parameter data includes：
The processing and control element (PCE) receives electric parameter data, by currently received each phase voltage respectively with it is preceding once receive it is each
Phase voltage is compared, and currently received each phase power factor is compared with the preceding each phase power factor once received respectively
It is right, when the changing value of the voltage of any phase and the preceding voltage once received in currently received three-phase voltage exceedes preset voltage value
Or when the changing value of the power factor of any phase and the preceding power factor once received in currently received three-phase activity coefficient surpasses
When crossing predetermined power factor value, economize on electricity test is carried out to the energy-saving device.
8. economize on electricity weight testing method as claimed in claim 6, it is characterised in that the mode of operation of the energy-saving device includes section
Power mode and bypass mode, the data acquisition unit collection economize on electricity test data are simultaneously sent to the step of the processing and control element (PCE)
Suddenly include：
The mode of operation of the energy-saving device is switched to described under energy-saving mode, the data acquisition unit collection energy-saving mode
The first active power and the first reactive power of energy-saving device input；
The mode of operation of the energy-saving device is switched to described under bypass mode, the data acquisition unit collection bypass mode
The second active power and the second reactive power of energy-saving device input；
The mode of operation of the energy-saving device is switched to described under energy-saving mode, the data acquisition unit collection energy-saving mode
The 3rd active power and the 3rd reactive power of energy-saving device input, complete the economize on electricity test；
The positive active electrical degree reading and forward direction of gauge table described in the data acquisition unit collection economize on electricity test process are idle
Electric degree reading；
The data acquisition unit sends the economize on electricity test data to the processing and control element (PCE), wherein, the economize on electricity test
Data include the positive active electrical degree reading, positive idle electric degree reading, the first active power, the first reactive power, second
Active power, the second reactive power, the 3rd active power and the 3rd reactive power.
9. economize on electricity weight testing method as claimed in claim 8, it is characterised in that the processing and control element (PCE) is in the institute received
When stating economize on electricity test data and being unsatisfactory for default condition for validity, the processing and control element (PCE) controls the data acquisition unit to delete this
The secondary economize on electricity test data, economize on electricity next time is carried out to the energy-saving device and is tested, until economize on electricity test data meets described
The step of default condition for validity, includes：
First active power received and the 3rd active power are compared the processing and control element (PCE), work as institute
When stating rate of change of the 3rd active power based on first active power more than default rate of change, the processing and control element (PCE) control
Make the data acquisition unit and delete this economize on electricity test data, economize on electricity next time is carried out to the energy-saving device and is tested, until
The rate of change of 3rd active power based on first active power is no more than the default rate of change.
10. economize on electricity weight testing method as claimed in claim 8, it is characterised in that the processing and control element (PCE) is being received
When the economize on electricity test data meets default condition for validity, the step of economize on electricity data are calculated based on the economize on electricity test data
Including：
The processing and control element (PCE) is when the economize on electricity test data received meets default condition for validity, the processing control
Unit calculates according to first active power and second active power and draws active power saving rate, idle according to described first
Power and second reactive power, which are calculated, draws idle power saving rate；
The processing and control element (PCE) calculates active electrical degree according to the active power saving rate and the positive active electrical degree reading
Saving, idle electric degree saving is calculated according to the idle power saving rate and the positive idle electric degree reading；
The processing and control element (PCE) calculates non-section according to the active electrical degree saving and the positive active electrical degree reading
Active electrical degree reading under electricity condition, is calculated non-according to the idle electric degree saving and the positive idle electric degree reading
Idle electric degree reading under electricity-saving state；
The processing and control element (PCE) is read according to the idle electric degree under the active electrical degree reading and electricity-saving state under the electricity-saving state
Number calculates average power factors under energy-saving mode, according to the active electrical degree reading under the non-electricity-saving state and described non-
Idle electric degree reading under electricity-saving state calculates the average power factor under non-energy-saving mode；
The processing and control element (PCE) obtains the first power rate regulation coefficient according to the average power factor under the energy-saving mode, according to
Average power factor under the non-energy-saving mode obtains the second power rate regulation coefficient；
The processing and control element (PCE) is read according to the first power rate regulation coefficient, the second power rate regulation coefficient, positive active electrical degree
Number, the active electrical degree reading under active electrical degree saving, non-electricity-saving state and electricity price calculate economize on electricity income, the economize on electricity number
According to including under the active power saving rate, idle power saving rate, active electrical degree saving, idle electric degree saving, non-electricity-saving state
Idle electric degree reading under active electrical degree reading, non-electricity-saving state, the average power factor under energy-saving mode, under non-energy-saving mode
Average power factor, the first power rate regulation coefficient, the second power rate regulation coefficient and economize on electricity income.
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| CN107203152B (en) | 2019-05-31 |
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