CN202586344U - Power-saving device having power-saving rate verification system - Google Patents
Power-saving device having power-saving rate verification system Download PDFInfo
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- CN202586344U CN202586344U CN2012201928822U CN201220192882U CN202586344U CN 202586344 U CN202586344 U CN 202586344U CN 2012201928822 U CN2012201928822 U CN 2012201928822U CN 201220192882 U CN201220192882 U CN 201220192882U CN 202586344 U CN202586344 U CN 202586344U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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Abstract
The utility model discloses a power-saving device having a power-saving rate verification system. The power-saving device comprises a power-saving device portion and a verification system portion. The power-saving device portion comprises a visible portion which is used for current display, voltage display as well as power-saving indication and non-power-saving indication; a main body portion which is used for balancing three-phase voltages and currents, adjusting voltages, improving the power factor, limiting the starting current and eliminating higher-order harmonics; and a control portion which is used for short circuit conditions and overload automatic protection. The verification system portion comprises a data acquisition unit which is used for acquiring power parameters at ends of two coils; a data processing unit which is used for acquiring the power parameters from the data acquisition unit and calculating the power-saving rate according to the power parameters; a user interface which is used for prompting a user the calculated power-saving rate; an input/output unit which is used for transmitting the feedback signal from a secondary circuit to the data processing unit and transmitting the control signal from the data processing unit to the secondary circuit; and a level conversion unit which is used for realizing the level conversion from the interface standard of the data processing unit to the bus interface standard of the data acquisition unit and the input/output unit.
Description
Technical field
The utility model relates to a kind of battery saving arrangement, specifically, relates to a kind of electricity-saving appliance with power saving rate verification system that can carry out real-time verification to power saving rate.
Background technology
Along with modern society's rapid development of economy, energy plaque lacks becomes a global problem day by day.And electric energy develops indispensable pillar as modern civilization, and its finiteness has also caused people's attention.How better the conservation of power resource is the great task of pendulum in face of us.Present electricity consumption enterprise and unit be some problem below existing aspect the electricity usage: one, the overtension of electricity consumption enterprise, and existing certain electric power energy too wastes; Two, the use of single-phase equipment exists three-phase imbalance voltage and electric current, and this will increase certain electricity charge expenditure to electricity consumption enterprise; Three, the low excessively phenomenon of power factor will reduce the utilance of electric energy like this and increase certain electricity charge spending to enterprise; Four, power consumption equipment all is motor mostly, and the Fraquent start of these motor also will increase certain electricity charge expenditure to enterprise; Five, electrical appliance is electronic product mostly, and these electronic products have produced high order harmonic component again and had high order harmonic component that harmonic current and harmonic voltage must be arranged in work, has increased certain electricity charge expenditure for so again electricity consumption enterprise.
In addition, electricity-saving appliance in use owing to various factors, need be verified its power saving rate, reach electricity-saving function.With reference to figure 1; This figure is the structural representation of the power saving rate proof scheme of existing reactance type (inductive type) electricity-saving appliance; Between the main winding 101 of electricity-saving appliance and auxiliary winding 102, a by-pass switch 20 is set,, contrasts the energy-conservation loss of electricity condition and non-electricity-saving state through controlling the break-make of this by-pass switch 20; Thereby obtain power saving rate, its practical implementation process is following:
Bypass switch opens, electricity-saving appliance auxiliary winding 102 does not drop into main operating circuit at this moment, and electricity-saving appliance is in non-electricity-saving state, measures the power consumption (KWH) of set time (as 1 hour) through kilowatt-hour meter 30;
Closes bypass switch, the main operating circuit of electricity-saving appliance auxiliary winding 102 inputs this moment, electricity-saving appliance is in electricity-saving state, and kilowatt-hour meter 30 is measured the power consumption (KWH) of set time (as 1 hour);
Non-electricity-saving state power consumption and two data of electricity-saving state power consumption of the identical load 40 that obtains through test calculate power saving rate, and formula is following:
In the above-mentioned implementation process, when the power consumption of conversion testing electricity-saving state and non-electricity-saving state, two kinds of operating state testing times should be identical, electricity consumption end load 30 should be consistent.
Can find out some deficiency below the verification method of this power saving rate exists from above control methods implementation process:
1, not directly perceived: utilization control methods test power saving rate; Can not directly tell the result of user test, need just can obtain a result through certain testing time, and in the time of this wait; Because of the restriction of customer requirements or test environment, the testing time becomes and can not control sometimes.
2, real-time is poor: utilization control methods test power saving rate, and the most important point is exactly the operating state that needs the conversion electricity-saving appliance, and have the change-over time of no matter setting lacks more, and its resulting two data are not simultaneously, all the time the front and back difference of life period.
3, not deeply: utilization control methods test power saving rate, data are electric degree numbers that the electric energy meter from main line reads, and from electricity-saving appliance the effect that it changes circuit parameter are not described in essence.
4, poor accuracy: utilization control methods test power saving rate, require two kinds of operating state testing times identical, power load is consistent, and this is difficult to when testing at the scene guarantee.The time of twice test, identical this point was accomplished comparatively speaking easily, but will guarantee that the consistency of twice when test load is just not objective.Only the power consumption equipment usage quantity at control scene is identical; Can not guarantee that its line load is constant; The latency that influences the variation of electricity consumption line load is a lot; Such as: the working temperature of equipment, working condition, the load fluctuation that variations such as line temperature and environmental factor cause, these situation all can influence precision of test result.
The utility model content
To above deficiency; The utility model provides a kind of real-time, directly perceived, deep, electricity-saving appliance with power saving rate verification system that accuracy is high; It comprises the electricity-saving appliance part, and said electricity-saving appliance partly comprises: the viewable portion that is used for electric current demonstration, voltage demonstration and economize on electricity and non-economize on electricity indication; The main part that is used for balanced three-phase voltage electric current, adjustment voltage, raising power factor, restriction starting current and elimination high order harmonic component; The control section that is used for short circuit and automatic overload protection, said control section comprises major loop and secondary circuit, said main part is made up of iron core, first coil and second coil that are connected on the power line; Two coils all are wrapped on the iron core, and wherein, an end of first coil is connected on the live wire; As electric power incoming line, the other end supplies three-phase, two-phase and single-phase load to use, and gets final product as need only use wherein a live wire and zero line with single-phase load; The N1 point is drawn in one end parallel connection of second coil; The other end is connected in the end of normally open contactor KM1, KM2 and normally closed contactor KM4 in parallel, and the other end of KM1 then is connected on the power line through air switch QF, and the other end of KM2 and KM4 then parallel connection is drawn the N2 point; N1 point and N2 point connect and compose major loop
It also comprises the verification system part, and said verification system partly comprises: data acquisition unit, link to each other with second coil with first coil, and be used for gathering simultaneously the electrical energy parameter of electricity-saving appliance first coil-end and second coil-end; Data processing unit links to each other with said data acquisition unit, is used to obtain the electrical energy parameter from said data acquisition unit, and calculates power saving rate according to said electrical energy parameter; User interface links to each other with said data processing unit, is used for the power saving rate that calculates to the said data processing unit of user prompt.
Said viewable portion comprises connection three ammeters, three indicator lights, a voltmeter and voltage change-over switch composition on the line, wherein, also is in series with a fuse on the circuit of each indicator light, is respectively Fu1, Fu2 and Fu3.
Said secondary circuit is made up of a fuse F u4 and six parallel branches, and the coil of the normally-closed contact of first route contactor Km3, the normally-closed contact of Km1 and contactor Km2 is in series, and the coil two ends of contactor Km2 are parallel with non-economize on electricity indicator light; Second branch road is the coil of contactor Km4; The 3rd branch road is by the auxiliary normally-closed contact of air switch QF, normally closed non-Electricity-saving button Stop, often opens the normally opened contact of Electricity-saving button Start, normally closed thermostat relay Ktl, contactor Km4 and the coil of contactor Km3 and be composed in series; Wherein, the two ends of Electricity-saving button Start are parallel with the normally opened contact of contactor Km1; The normally-closed contact of the normally opened contact of the 4th route contactor Km3, the normally opened contact of contactor Km4, contactor Km2 and the coil of contactor Kml are composed in series, and wherein, the coil two ends of contactor Kml are parallel with the economize on electricity indicator light; The 5th route often opens thermostat relay Kt2 and ventilating fan is composed in series; The 6th route often opened thermostat relay Kt3 and ventilating fan composition; Connect with fuse F u5 after said the 3rd to the 6th branch road parallel connection, parallelly connected with first and second branch road then.
Said data acquisition unit comprises: first data acquisition unit, link to each other with said first coil, and be used for gathering in real time the electrical energy parameter of said first coil-end; Second data acquisition unit links to each other with second coil of said electricity-saving appliance, is used for gathering in real time the electrical energy parameter of said second coil-end.
Said first data acquisition unit comprises: the first current sampling unit, link to each other with said first coil, and be used for gathering in real time the current signal of said first coil-end; The first voltage sampling unit links to each other with said first coil, is used for gathering in real time the voltage signal of said first coil-end; First D/A conversion unit links to each other with the first voltage sampling unit with the said first current sampling unit, and the current signal and the voltage signal that are used for first coil that collects are digital signal from analog signal conversion; First parameter calculation unit links to each other with said first D/A conversion unit, is used for the electrical energy parameter that calculates first coil according to current signal and voltage signal from said first D/A conversion unit; First data storage cell links to each other with said first parameter calculation unit, is used for the electrical energy parameter of said first coil is stored, and waits for that said data processing unit reads;
Said second data acquisition unit comprises: the second current sampling unit, link to each other with said second coil, and be used for gathering in real time the current signal of said second coil-end; The second voltage sampling unit links to each other with said second coil, is used for gathering in real time the voltage signal of said second coil-end; Second D/A conversion unit links to each other with the second voltage sampling unit with the said second current sampling unit, and the current signal and the voltage signal that are used for second coil that collects are digital signal from analog signal conversion; Second parameter calculation unit links to each other with said second D/A conversion unit, is used for the electrical energy parameter that calculates second coil according to current signal and voltage signal from said second D/A conversion unit; Second data storage cell links to each other with said second parameter calculation unit, is used for the electrical energy parameter of said second coil is stored, and waits for that said data processing unit reads.
Said data processing unit comprises: the power saving rate computing unit, link to each other with said data acquisition unit, and first coil that is used for collecting according to said data acquisition unit and the electrical energy parameter of second coil calculate power saving rate; Feedback control unit links to each other with secondary circuit, is used to obtain the feedback signal from said secondary circuit, and with sending control signal corresponding according to said feedback signal to said secondary circuit.
Said verification system partly comprises also and comprising: input-output unit; Be connected between said data processing unit and the secondary circuit; Be used for and be transferred to data processing unit from the feedback signal of said secondary circuit, and will be transferred to secondary circuit from the control signal of said data processing unit; Level conversion unit; The one of which end is connected respectively to said data acquisition unit, input-output unit; The other end then is connected to said data processing unit, and the RS-232 interface standard that is used to realize said data processing unit employing is to the level conversion between the RS-485 bus interface standards of said data acquisition unit and input-output unit employing.
The beneficial effect of the utility model: at first, the connected mode that the main part of the utility model adopts can balanced three-phase voltage and electric current, lets harmonic wave not have the approach circulation simultaneously; Can reduce certain electricity charge expenditure to enterprise like this; And superfluous voltage is adjusted to a suitable level, make the electricity consumption equipment work under the rated voltage state, not only can practice thrift electricity charge spending; The use that can prolong power consumption equipment is again received a mandate, and can reduce the electricity charge expenditure of electricity consumption enterprise when eliminating high order harmonic component again; In addition, the utility model has also promoted power factor in adjustment voltage, can not only more can improve the utilance of electric energy for enterprise reduces electricity charge spending like this; Have, the coil of the utility model just is equivalent to inductance again, by the electric current of the inductance principle of can not suddenling change, has also just limited the starting current of motor; At last; The utility model is through detect the electrical energy parameter between first coil and second coil in real time; And calculate the power saving rate of electricity-saving appliance according to said electrical energy parameter, thus make user real time, obtain deeply intuitively, power saving rate data accurately, promoted popularizing of electricity-saving appliance greatly.
Description of drawings
Fig. 1 is the system configuration sketch map of the power saving rate proof scheme of traditional electricity-saving appliance;
Fig. 2 is the functional-block diagram of the utility model;
Fig. 3 is the circuit theory diagrams of the electricity-saving appliance part of the utility model;
Fig. 4 is that the hardware of the verification system embodiment partly of the utility model is implemented sketch map;
Fig. 5 is the wiring schematic diagram that the verification system part of the utility model is connected with electricity-saving appliance part main winding (first coil);
Fig. 6 is the wiring schematic diagram that the verification system part of the utility model is connected with electricity-saving appliance part auxiliary winding (second coil);
Fig. 7 is the realization flow figure of the verification system part of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further set forth.
As shown in Figures 2 and 3; The electricity-saving appliance with power saving rate verification system of the utility model comprises electricity-saving appliance part and verification system part; Electricity-saving appliance partly comprises viewable portion 01, main part 02 and control section, and verification system partly comprises data acquisition unit 1, data processing unit 2, user interface 3, input-output unit 4 and level conversion unit 5.
Wherein, Viewable portion 01 is used for electric current demonstration, voltage demonstration and economize on electricity and non-economize on electricity indication; It comprises connection three ammeters, three indicator lights, a voltmeter and voltage change-over switch composition on the line; Also be in series with a fuse on the circuit of each indicator light, be respectively Fu1, Fu2 and Fu3.
Control section is used for short circuit and automatic overload protection; It comprises major loop 03 and secondary circuit 04; The other end of KM1 then is connected on the power line through air switch QF; The other end of KM2 and KM4 then parallel connection is drawn the N2 point, and N1 point and N2 point connect and compose major loop 03, and secondary circuit 04 is made up of a fuse F u4 and six parallel branches; The coil of the normally-closed contact of first route contactor Km3, the normally-closed contact of Km1 and contactor Km2 is in series, and the coil two ends of contactor Km2 are parallel with non-economize on electricity indicator light; Second branch road is the coil of contactor Km4; The 3rd branch road is by the auxiliary normally-closed contact of air switch QF, normally closed non-Electricity-saving button Stop, often opens the normally opened contact of Electricity-saving button Start, normally closed thermostat relay Ktl, contactor Km4 and the coil of contactor Km3 and be composed in series; Wherein, the two ends of Electricity-saving button Start are parallel with the normally opened contact of contactor Km1; The normally-closed contact of the normally opened contact of the 4th route contactor Km3, the normally opened contact of contactor Km4, contactor Km2 and the coil of contactor Kml are composed in series, and wherein, the coil two ends of contactor Kml are parallel with the economize on electricity indicator light; The 5th route often opens thermostat relay Kt2 and ventilating fan is composed in series; The 6th route often opened thermostat relay Kt3 and ventilating fan composition; Connect with fuse F u5 after said the 3rd to the 6th branch road parallel connection, parallelly connected with first and second branch road then.
The course of work of electricity-saving appliance part is described below:
1) KM4 and KM2 get electronic work when the energising operation, at this moment non-economize on electricity indicator light bright (redness).
2) when pressing economize on electricity knob Start; KM3 gets electronic work; The control loop KM2 dead electricity of cutting off KM2 simultaneously discharges simultaneously because the control loop of KMl is connected action, and pin KM3, this moment economize on electricity indicator light bright (green) thus non-economize on electricity indicator light extinguishes the conversion of accomplishing the non-economize on electricity of economizing on electricity.
3) when pressing non-Electricity-saving button Stop, dead electricity discharges meanwhile because the control loop of KM3 breaks off because the control loop of KM1 breaks off resetting and connects the control loop of KM2 simultaneously, and KM2 gets electronic work, the economize on electricity transfer process of non-economize on electricity of completion.
The control section course of work is following:
1) when the major loop 03 of control section is short-circuited and transships, the QF action of can tripping, the power supply in open failure loop; Auxiliary contact also and then break off in the time of the QF action, cut off the control loop of KM3, and KM3 is resetted; KMl resets when KM3 resets; At this moment connect the control loop KM2 action of KM2, thereby make major loop 03 short circuit of control section, at this moment main part 02 equals pass-through state; Like this when main part 02 fault-free and the major loop 03 of control section when fault is arranged, thus continuity and the reliability that can not interrupt the power supply of load is guaranteed power supply.
2) when main part 02 was overheated, its Kt1 resetted, thereby the control loop that cuts off KM3 accomplishes that KM3 resets and above-mentioned 1 the course of work.
3) when the fuse F U5 of control section secondary circuit 04 fusing, KM1 and KM3 can reset immediately, at this moment connect the control loop KM2 action of KM2, and at this moment main part 02 equals pass-through state and works on.
4) when the fuse F U4 of control loop fusing; The KM1 to KM4 of control secondary circuit 04 can reset immediately; But because of the contact of KM4 is that the dead electricity main contacts is closed state, thereby make major loop 03 short circuit of control section, main part 02 equals pass-through state and works on like this.
Data acquisition unit 1 is used for gathering simultaneously the electrical energy parameter of electricity-saving appliance first coil-end and second coil-end; It links to each other with second coil with first coil; Data acquisition unit 1 comprises that first data acquisition unit 11 and second data acquisition unit, 12, the first data acquisition units link to each other with first coil, are used for gathering in real time the electrical energy parameter of said first coil-end; Second data acquisition unit 12 links to each other with second coil of electricity-saving appliance, is used for gathering in real time the electrical energy parameter of said second coil-end.First data acquisition unit 11 comprises the first current sampling unit 111, the first voltage sampling unit 112, first D/A conversion unit 113, first parameter calculation unit 114 and first data storage cell 115; The first current sampling unit 111 links to each other with the main winding of said electricity-saving appliance part, is used for gathering in real time the current signal of main winding end; The first voltage sampling unit 112 links to each other with the main winding of electricity-saving appliance part, is used for gathering in real time the voltage signal of main winding end; First D/A conversion unit 113 links to each other with the first voltage sampling unit 112 with the first current sampling unit 111, and the current signal and the voltage signal that are used for the main winding that collects are digital signal from analog signal conversion; First parameter calculation unit 114 links to each other with first D/A conversion unit 113, is used for the electrical energy parameter that calculates main winding according to current signal and voltage signal from first D/A conversion unit 113; First data storage cell 115 links to each other with first parameter calculation unit 114, is used for the electrical energy parameter of said main winding is stored, and waits for that said data processing unit reads.Second data acquisition unit 12 comprises the second current sampling unit 121, the second voltage sampling unit 122, second D/A conversion unit 123, second parameter calculation unit 124 and first data storage cell 125; The second current sampling unit 121 links to each other with the auxiliary winding of electricity-saving appliance part, is used for gathering in real time the current signal of said auxiliary winding end; The second voltage sampling unit 122 links to each other with the auxiliary winding of electricity-saving appliance part, is used for gathering in real time the voltage signal of said auxiliary winding end; Second D/A conversion unit 123 links to each other with the second voltage sampling unit 122 with the second current sampling unit 121, and the current signal and the voltage signal that are used for the auxiliary winding that collects are digital signal from analog signal conversion; Second parameter calculation unit 124 links to each other with second D/A conversion unit 123, is used for the electrical energy parameter that calculates auxiliary winding according to current signal and voltage signal from second D/A conversion unit 123; First data storage cell 125 links to each other with first parameter calculation unit 124, is used for the electrical energy parameter of auxiliary winding is stored, and waits for that data processing unit 2 reads.
User interface 3 links to each other with data processing unit 2, is used for the power saving rate that calculates to the said data processing unit of user prompt.
Input-output unit 4 is connected between data processing unit 2 and the electricity-saving appliance part secondary circuit 04, is used for the feedback signal from secondary circuit 04 is transferred to data processing unit 2, and will be transferred to secondary circuit 04 from the control signal of data processing unit 2.
One end of level conversion unit 5 is connected respectively to data acquisition unit 1 and input-output unit 4; Its other end is connected to data processing unit 2, and the RS-232 interface standard that is used to realize data processing unit 2 employings is to the level conversion between the RS-485 bus interface standards of data acquisition unit 1 and input-output unit 4 employings.
Describe the hardware embodiment of each several part in the present embodiment verification system part in detail below in conjunction with Fig. 4 to Fig. 6.
As shown in Figure 4; First data acquisition unit 11 of composition data collecting unit 1 and second data acquisition unit 12 can be realized through main winding data acquisition circuit among the figure and auxiliary winding data acquisition circuit respectively; Main winding data acquisition circuit and auxiliary winding Acquisition Circuit can adopt the P350 electric quantity test that carries communication interface RS-485 communication interface firm and hard existing; Particularly; The first current sampling unit 111 and the second current sampling unit 121 are realized through current sampling mutual inductor CT respectively; The first voltage sampling unit 112 and the second voltage sampling unit 122 are realized through voltage sampling instrument transformer PT respectively; First D/A conversion unit 113 and second D/A conversion unit 123 realize partly through the ADC digital-to-analogue that respectively first parameter calculation unit 114 and second parameter calculation unit 124 realize through single-chip microcomputer C8051F020 kernel that respectively first data storage cell 115 and second data storage cell 125 are realized through storage chip IS62WV5128BLL55-HLI respectively.
Input-output unit 4 can adopt the I/O imput output circuit control module that exists on the market to realize that this module carries MAX485 interface circuit, D/A converting circuit and photoelectric isolating circuit etc.
User interface 3 can realize through the LCD touch display screen; Various circuit parameters and function button are integrated on the interface, except that video data, can also pass through the screen touch-control; Completion is to the operation of system's all functions, comprises that parameter is had access to, default, control operation in real time etc.
Power supply is a computer AT power supply, input 220V civil power, and output direct current 12V/5V/3.3V, DC24V is a Switching Power Supply; Input 220V civil power, output direct current 24V 3.2A, DC 5V is a Switching Power Supply, input 220V civil power; Output direct current 5V 3A, J1 is the auxiliary relay coil, and the normally opened contact control appliance is realized the contactor coil of voltage stabilizing function, and J2 is the auxiliary relay coil; The normally opened contact control appliance is realized electricity saving function contactor coil, and J3 is the auxiliary relay coil, normally opened contact control alarm buzzer, and current sampling mutual inductor CT no-load voltage ratio is 5A/2mA; Can dispose according to capacity of trunk, voltage sampling instrument transformer PT no-load voltage ratio is 1mA/1mA, can dispose according to capacity of trunk.
Describe the operation principle of verification system part below in detail:
During concrete the realization; Data acquisition unit 1 (main winding data acquisition circuit and auxiliary winding data acquisition circuit) is gathered the main winding of electricity-saving appliance part and the electric current and the voltage signal of auxiliary winding; According to this electric current and voltage signal calculate following electrical energy parameter: three-phase voltage U a/Ub/Uc, three-phase current Ia/Ib/Ic, three phases active power Pa/Pb/Pc, total active power Pz, three phase power factor Cos φ a/Cos φ b/Cos φ c, gross power factor Cos φ z, the idle Qa/Qb/Qc of three-phase, total reactive power Q z, frequency Hz, three-phase voltage, electric current 1-13 order harmonic components harmonic voltage containing rate HRUh and harmonic current containing ratio HRIh, three phase harmonic voltage content Uh and harmonic current content Ih, the total percent harmonic distortion THDu of three-phase voltage and the total percent harmonic distortion THDi of electric current, idol time/odd harmonic aberration rate, current just meritorious/idle minute electric energy, last time be just meritorious/idle minute electric energy, meritorious/idle minute electric energy just last time, current just meritorious/idle hour electric energy, last time be just meritorious/idle hour electric energy and meritorious/idle hour electric energy just last time.
Data processing unit 2 (host computer) is set up after communication reads two data in the P350 electric quantity test plate, carries out analytical calculation through the original test data to the P350 plate, obtains following data result:
A, current energy data: these data directly read from the P350 plate.
B, single-phase power saving rate: these data compensate the ratio of winding current and main winding current for each mutually, and computing formula is following:
C, integrated power-saving rate: these data are the mean value of three single-phase power saving rates.
Energy data before D, the economize on electricity: these data obtain through current energy data and power saving rate data computation, and formula is following:
E, per day power saving rate: these data are the mean value of per minute integrated power-saving rate on the same day.
F, monthly average power saving rate: these data are the mean value of of that month every day of average power saving rate.
During concrete the realization, can above-mentioned data result be filed and set up database, and generate the EXCEL document storing automatically according to certain frequency.
In addition, native system also has overtemperature, superpressure and overcurrent event handling function, and when the anomalous event of overtemperature, superpressure and overcurrent appears in equipment or using electricity system, system can connect outside buzzer warning, and in main interface display anomalous event.
Because the data acquisition unit in the native system uses the embedded system of Acquisition Circuit; Host computer is set up communication with it can obtain desired data; The I/O input-output unit uses the embedded system of module; Host computer is set up communication with it can accomplish controlled function, the driver that user interface touch-control display screen uses hardware to carry, and installation and operation can be realized correlation function in host computer.Very easy to use.
Describe the workflow of verification system part of the present invention below with reference to figure 7 in detail, be specially:
Data acquisition step S1 gathers the electrical energy parameter of electricity-saving appliance part main winding end and auxiliary winding end simultaneously;
Data processing step S2 calculates power saving rate according to the electrical energy parameter that collects;
User prompt step S3 to the said power saving rate that calculates of user prompt, as an execution mode, can point out the user through data are presented on the LCD touch display screen.
During concrete the realization, data acquisition step S1 can specifically comprise:
The first data acquisition step S11 gathers the electrical energy parameter of said main winding end in real time;
The second data acquisition step S12 gathers the electrical energy parameter of said auxiliary winding end in real time.
What be worth explanation is that above-mentioned steps S11 and S12 carry out simultaneously.
Data processing step S2 can specifically comprise:
Power saving rate calculation procedure S21, the main winding that collects according to said data acquisition unit and the electrical energy parameter of auxiliary winding calculate power saving rate;
FEEDBACK CONTROL step S22 obtains the feedback signal from the secondary circuit 04 of electricity-saving appliance part, and with sending control signal corresponding according to said feedback signal to said secondary circuit.
During concrete the realization, the first data acquisition step S11 can further comprise:
The first current sampling step S111 gathers the current signal of said main winding end in real time;
The first voltage sampling step S112 gathers the voltage signal of said main winding end in real time;
The first digital-to-analogue conversion step S113 is digital signal with the current signal and the voltage signal of the main winding that collects from analog signal conversion;
The first calculation of parameter step S114 calculates the electrical energy parameter of main winding according to this current signal and voltage signal;
The first storage step S115 stores the electrical energy parameter of main winding.
The second data acquisition step S12 can further comprise:
The second current sampling step S121 gathers the current signal of said auxiliary winding end;
The second voltage sampling step S122 gathers the voltage signal of said auxiliary winding end;
The second digital-to-analogue conversion step S123 is digital signal with the current signal and the voltage signal of the auxiliary winding that collects from analog signal conversion;
The second calculation of parameter step S124 calculates the electrical energy parameter of auxiliary winding according to this current signal and voltage signal,
The second storage step S125 stores the electrical energy parameter of auxiliary winding.
In addition, before FEEDBACK CONTROL step S22, can comprise:
Input step S41 will be transferred to data processing unit from the feedback signal of said secondary circuit;
After FEEDBACK CONTROL step S22, also can comprise:
Output step S42 will be transferred to secondary circuit from the control signal of said data processing unit.
In addition, present embodiment also includes level conversion step S24, before power saving rate calculation procedure S1 or FEEDBACK CONTROL step S22, carries out the RS-232 interface standard to the level conversion between the RS-485 bus interface standards.
In sum; Compare with the power saving rate verification method of prior art; The power saving rate verification system and the method for reactance type of the present invention (inductive type) electricity-saving appliance are started with from the intrinsic propesties of electricity-saving appliance; Take into full account of the change of reactor element, obtain the power saving rate data through after the real-time measuring and calculating of system to the circuit electric parameter.Can be directly perceived, a real-time circuit minute power saving rate be shown, and the circuit parameter acquisition module that adopts high-speed, high precision because of system make the accuracy of power saving rate data be able to technically guarantee.In addition, the power consumption of system's while circuit electricity-saving state and non-electricity-saving state makes the test of power saving rate need not change the electricity-saving appliance operating state, has simplified the power saving rate checking work of reactance type (inductive type) electricity-saving appliance.
The present invention has used brand-new checking thinking, has adopted the industry control electronic technology, has been equipped with electronic measurements module and control module, and service behaviour is more directly perceived, real-time, accurate than traditional verification method.Cooperate traditional reactance type (inductive type) electricity-saving appliance to use; Can embody better traditional electricity-saving appliance energy-saving effect, can overcome the many pre-sales power savings explanations of electricity-saving appliance and the puzzlement of market sales such as back energy-saving effect checking is installed; Make more user easier accept and can admit the energy-saving effect of electricity-saving appliance; Promote the application of electricity-saving appliance better, on energy-conservation cause, do bigger contribution in market.
The above is merely preferred embodiments of the present invention; The present invention is not limited to above-mentioned execution mode; In implementation process, possibly there is local small structural modification; If various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, and belong within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.
Claims (7)
1. electricity-saving appliance with power saving rate verification system, it comprises the electricity-saving appliance part, said electricity-saving appliance partly comprises:
The viewable portion that is used for electric current demonstration, voltage demonstration and economize on electricity and non-economize on electricity indication;
The main part that is used for balanced three-phase voltage electric current, adjustment voltage, raising power factor, restriction starting current and elimination high order harmonic component;
The control section that is used for short circuit and automatic overload protection,
Said control section comprises major loop and secondary circuit, and said main part is made up of iron core, first coil and second coil that are connected on the power line, and two coils all are wrapped on the iron core; Wherein, an end of first coil is connected on the live wire, as electric power incoming line; The other end supplies three-phase, two-phase and single-phase load to use; As need only use wherein a live wire and zero line to get final product with single-phase load, the N1 point is drawn in an end parallel connection of second coil, and the other end is connected in the end of normally open contactor KM1, KM2 and normally closed contactor KM4 in parallel; The other end of KM1 then is connected on the power line through air switch QF; The other end of KM2 and KM4 then parallel connection is drawn the N2 point, and N1 point and N2 point connect and compose major loop
It is characterized in that it also comprises the verification system part, said verification system partly comprises:
Data acquisition unit links to each other with second coil with first coil, is used for gathering simultaneously first coil-end of electricity-saving appliance part and the electrical energy parameter of second coil-end;
Data processing unit links to each other with said data acquisition unit, is used to obtain the electrical energy parameter from said data acquisition unit, and calculates power saving rate according to said electrical energy parameter;
User interface links to each other with said data processing unit, is used for the power saving rate that calculates to the said data processing unit of user prompt.
2. the electricity-saving appliance with power saving rate verification system according to claim 1; It is characterized in that; Said viewable portion comprises connection three ammeters, three indicator lights, a voltmeter and voltage change-over switch composition on the line; Wherein, also be in series with a fuse on the circuit of each indicator light, be respectively Fu1, Fu2 and Fu3.
3. the electricity-saving appliance with power saving rate verification system according to claim 1 and 2; It is characterized in that; Said secondary circuit is made up of a fuse F u4 and six parallel branches; The coil of the normally-closed contact of first route contactor Km3, the normally-closed contact of Km1 and contactor Km2 is in series, and the coil two ends of contactor Km2 are parallel with non-economize on electricity indicator light; Second branch road is the coil of contactor Km4; The 3rd branch road is by the auxiliary normally-closed contact of air switch QF, normally closed non-Electricity-saving button Stop, often opens the normally opened contact of Electricity-saving button Start, normally closed thermostat relay Ktl, contactor Km4 and the coil of contactor Km3 and be composed in series; Wherein, the two ends of Electricity-saving button Start are parallel with the normally opened contact of contactor Km1; The normally-closed contact of the normally opened contact of the 4th route contactor Km3, the normally opened contact of contactor Km4, contactor Km2 and the coil of contactor Kml are composed in series, and wherein, the coil two ends of contactor Kml are parallel with the economize on electricity indicator light; The 5th route often opens thermostat relay Kt2 and ventilating fan is composed in series; The 6th route often opened thermostat relay Kt3 and ventilating fan composition; Connect with fuse F u5 after said the 3rd to the 6th branch road parallel connection, parallelly connected with first and second branch road then.
4. the electricity-saving appliance with power saving rate verification system according to claim 1 is characterized in that, said data acquisition unit comprises:
First data acquisition unit links to each other with said first coil, is used for gathering in real time the electrical energy parameter of said first coil-end;
Second data acquisition unit links to each other with second coil of said electricity-saving appliance, is used for gathering in real time the electrical energy parameter of said second coil-end.
5. the electricity-saving appliance with power saving rate verification system as claimed in claim 4 is characterized in that, said first data acquisition unit comprises:
The first current sampling unit links to each other with said first coil, is used for gathering in real time the current signal of said first coil-end;
The first voltage sampling unit links to each other with said first coil, is used for gathering in real time the voltage signal of said first coil-end;
First D/A conversion unit links to each other with the first voltage sampling unit with the said first current sampling unit, and the current signal and the voltage signal that are used for first coil that collects are digital signal from analog signal conversion;
First parameter calculation unit links to each other with said first D/A conversion unit, is used for the electrical energy parameter that calculates first coil according to current signal and voltage signal from said first D/A conversion unit;
First data storage cell links to each other with said first parameter calculation unit, is used for the electrical energy parameter of said first coil is stored, and waits for that said data processing unit reads;
Said second data acquisition unit comprises:
The second current sampling unit links to each other with said second coil, is used for gathering in real time the current signal of said second coil-end;
The second voltage sampling unit links to each other with said second coil, is used for gathering in real time the voltage signal of said second coil-end;
Second D/A conversion unit links to each other with the second voltage sampling unit with the said second current sampling unit, and the current signal and the voltage signal that are used for second coil that collects are digital signal from analog signal conversion;
Second parameter calculation unit links to each other with said second D/A conversion unit, is used for the electrical energy parameter that calculates second coil according to current signal and voltage signal from said second D/A conversion unit;
Second data storage cell links to each other with said second parameter calculation unit, is used for the electrical energy parameter of said second coil is stored, and waits for that said data processing unit reads.
6. the electricity-saving appliance with power saving rate verification system as claimed in claim 1 is characterized in that, said data processing unit comprises:
The power saving rate computing unit links to each other with said data acquisition unit, and first coil that is used for collecting according to said data acquisition unit and the electrical energy parameter of second coil calculate power saving rate;
Feedback control unit links to each other with secondary circuit, is used to obtain the feedback signal from said secondary circuit, and with sending control signal corresponding according to said feedback signal to said secondary circuit.
7. the electricity-saving appliance with power saving rate verification system as claimed in claim 6 is characterized in that, said verification system partly comprises also and comprising:
Input-output unit is connected between said data processing unit and the secondary circuit, is used for the feedback signal from said secondary circuit is transferred to data processing unit, and will be transferred to secondary circuit from the control signal of said data processing unit;
Level conversion unit; The one of which end is connected respectively to said data acquisition unit, input-output unit; The other end then is connected to said data processing unit, and the RS-232 interface standard that is used to realize said data processing unit employing is to the level conversion between the RS-485 bus interface standards of said data acquisition unit and input-output unit employing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012201928822U CN202586344U (en) | 2012-04-28 | 2012-04-28 | Power-saving device having power-saving rate verification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012201928822U CN202586344U (en) | 2012-04-28 | 2012-04-28 | Power-saving device having power-saving rate verification system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107203152A (en) * | 2017-06-16 | 2017-09-26 | 内蒙古鄂尔多斯电子有限责任公司 | A kind of energy-saving device and economize on electricity weight testing method |
| CN107290612A (en) * | 2017-08-14 | 2017-10-24 | 江苏星宇电机有限公司 | A kind of performance testing device of electric saver for single-phase electric motor |
-
2012
- 2012-04-28 CN CN2012201928822U patent/CN202586344U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107203152A (en) * | 2017-06-16 | 2017-09-26 | 内蒙古鄂尔多斯电子有限责任公司 | A kind of energy-saving device and economize on electricity weight testing method |
| CN107290612A (en) * | 2017-08-14 | 2017-10-24 | 江苏星宇电机有限公司 | A kind of performance testing device of electric saver for single-phase electric motor |
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