CN103508283B - Elevator energy efficiency monitoring system and method - Google Patents
Elevator energy efficiency monitoring system and method Download PDFInfo
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- CN103508283B CN103508283B CN201310428831.4A CN201310428831A CN103508283B CN 103508283 B CN103508283 B CN 103508283B CN 201310428831 A CN201310428831 A CN 201310428831A CN 103508283 B CN103508283 B CN 103508283B
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Abstract
A kind of elevator energy efficiency monitoring system and method, comprising: an inversion unit; One sensing unit; And one measures and data center unit, it connects and controls the work of this inversion unit, it connects this sensing unit to obtain this first voltage and the first electric current, this second voltage and the second electric current and this tertiary voltage and the 3rd current signal, and carries out data processing to them: the total energy consumption parameter W1 calculating an elevator traction part according to this first voltage and the first amperemeter; Potential energy and the kinetic energy summation parameter W2 of an elevator traction part is calculated according to this second voltage and the second electric current and/or this tertiary voltage and the 3rd amperemeter; And use floor bottom-to-top-height M according to this elevator, calculate the first energy efficiency coefficient K1 respectively, K1=W2/ (W1-W2), and the second energy efficiency coefficient K2, K2=(W1-W2)/M.The present invention carries out the Real-Time Monitoring of efficiency after can realizing dropping into real-world operation well in elevator installation to building.
Description
Technical field
The present invention relates to elevator device, particularly relate to elevator energy efficiency proving installation and method.
Background technology
The monitoring of elevator energy efficiency is the important means to elevator device managing power consumption all the time.Chinese patent CN201210540410.6 discloses a kind of elevator energy efficiency proving installation and method, this device adopts embedded architecture, and described device comprises electric energy measurement module, elevator speed measurement module, communication module, signal processing module, human-computer interaction module and power module.Described method comprises: measure the energy consumption of elevator within the time period, running velocity and range ability; In conjunction with the nominal payload of elevator, judge to obtain the energy consumption grade of elevator through calculating and tabling look-up; According to the energy consumption grade of elevator to the efficiency test of elevator and efficiency grade evaluation.Chinese patent CN200810054350.0 discloses a kind of elevator energy efficiency detector and method of inspection thereof, this detector comprises: LCDs, measurement module, keyboard, microprocessor system and supply unit, measurement module is wherein provided with electric current, voltage input interface, microprocessor system connection bit displacement sensor.Its method of inspection comprises: determine the number of run of tested elevator, the load of each run and traffic coverage as required; The counterweight quantity of being loaded by lift car is by input through keyboard elevator load data; Installation position displacement sensor detects lift car miles of relative movement; Voltage, the current data that elevator runs is gathered by current/voltage input interface and elevator supply connection; By microprocessor system to data analysis, calculating, automatically generate survey report and complete efficiency and grade.These system and methods existing, be provided with the displacement/velocity pick-up of direct-detection elevator motion, the potential energy of elevator and the calculating of kinetic energy are realized by shift value and velocity amplitude, only be suitable for using in the manufacture/fc-specific test FC stage of elevator, once drop into real-world operation in elevator installation to building, just efficiency test cannot be realized.Consider: the elevator in using for reality, load and range ability are all changes, and the result of a measurement of rigid condition can not reflect the actual conditions of elevator.Visible, be necessary in engineering practice to improve existing elevator energy efficiency monitoring.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency overcoming the existence of above-mentioned prior art, and a kind of elevator energy efficiency monitoring system and method are proposed, its measuring condition used and method of calculating are all the change condition not relying on elevator operation, such as passenger is how many, load-carrying is how many, the frequent degree etc. run, carries out the Real-Time Monitoring of efficiency after can realizing dropping into real-world operation well in elevator installation to building.
The present invention is directed to above-mentioned technical matters and the technical scheme proposed comprises, a kind of elevator energy efficiency monitoring system is proposed, comprise: an inversion unit, it is connected between elevator traction machine frequency converter DC terminal and the commercial electrical network of three-phase, feeds back to electrical network in order to the regeneration direct current energy that this elevator traction machine frequency converter is produced;
One sensing unit, exchanges in order to what sense one first voltage of the interchange input of this elevator traction machine frequency converter and one second voltage that inputs of the direct current of one first electric current, this inversion unit and one second electric current and this inversion unit the tertiary voltage and one the 3rd electric current that export;
One measures and data center unit, it connects and controls the work of this inversion unit, it connects this sensing unit to obtain this first voltage and the first electric current, this second voltage and the second electric current and this tertiary voltage and the 3rd current signal, and carries out data processing to them: the total energy consumption parameter W1 calculating an elevator traction part according to this first voltage and the first amperemeter; Potential energy and the kinetic energy summation parameter W2 of an elevator traction part is calculated according to this second voltage and the second electric current and/or this tertiary voltage and the 3rd amperemeter; And use floor bottom-to-top-height M according to this elevator, calculate the first energy efficiency coefficient K1 respectively, K1=W2/ (W1-W2), and the second energy efficiency coefficient K2, K2=(W1-W2)/M.
Wherein, total power consumption parameter W1 of this elevator traction part carries out power against time integral operation to this first voltage within the scope of a setting duration and the first electric current to obtain, and its unit is degree; The potential energy of this elevator traction part and kinetic energy summation parameter W2 set this second voltage within the scope of duration and the second electric current and/or this tertiary voltage and the 3rd electric current to one to carry out power against time integral operation and obtain, and its unit is degree; This elevator uses the unit of floor bottom-to-top-height M to be rice.
Wherein, this elevator energy efficiency monitoring system also comprises a data communication unit, and this measurement and data center unit are connected with external monitoring systems by this data communication unit.
Wherein, this elevator traction machine frequency converter has rectifier or does not have rectifier.
Wherein, this measurement and data center unit comprise industrial computer or microprocessor.
Wherein, this inversion unit is DC/AC inverter or ac/dc rectification adverser.
Wherein, this inversion unit has two DC port and three AC port, and wherein these two DC port are connected with the DC bus of this elevator traction machine frequency converter, and these three AC port are connected with the commercial electrical network of this three-phase; This inversion unit comprises six high-power controlled switching devices, and these high-power controlled switching devices are controlled by this measurement and data center unit.
The present invention is directed to above-mentioned technical matters and the technical scheme proposed also comprises, propose a kind of elevator energy efficiency monitoring method, comprising:
Arrange an inversion unit, it is connected between elevator traction machine frequency converter DC terminal and the commercial electrical network of three-phase, feeds back to electrical network in order to the regeneration direct current energy that this elevator traction machine frequency converter is produced;
One sensing unit is set, exchanges in order to what sense one first voltage of the interchange input of this elevator traction machine frequency converter and one second voltage that inputs of the direct current of one first electric current, this inversion unit and one second electric current and this inversion unit the tertiary voltage and one the 3rd electric current that export;
One measurement and data center unit are set, it connects and controls the work of this inversion unit, it connects this sensing unit to obtain this first voltage and the first electric current, this second voltage and the second electric current and this tertiary voltage and the 3rd current signal, and carries out data processing to them: the total energy consumption parameter W1 calculating an elevator traction part according to this first voltage and the first amperemeter; Potential energy and the kinetic energy summation parameter W2 of an elevator traction part is calculated according to this second voltage and the second electric current and/or this tertiary voltage and the 3rd amperemeter; And use floor bottom-to-top-height M according to this elevator, calculate the first energy efficiency coefficient K1 respectively, K1=W2/ (W1-W2), and the second energy efficiency coefficient K2, K2=(W1-W2)/M.
Wherein, total power consumption parameter W1 of this elevator traction part carries out power against time integral operation to this first voltage within the scope of a setting duration and the first electric current to obtain, and its unit is degree; The potential energy of this elevator traction part and kinetic energy summation parameter W2 set this second voltage within the scope of duration and the second electric current and/or this tertiary voltage and the 3rd electric current to one to carry out power against time integral operation and obtain, and its unit is degree; This elevator uses the unit of floor bottom-to-top-height M to be rice.
Wherein, when calculating this second energy efficiency coefficient K2, the data under preferential employing elevator no-load condition calculate.
Compared with prior art, elevator energy efficiency monitoring system of the present invention and method carry out measuring and calculating and the calculating of energy efficiency coefficient by inversion unit, sensing unit and measurement and data center unit, carry out the Real-Time Monitoring of efficiency after can realizing dropping into real-world operation well in elevator installation to building.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of elevator energy efficiency monitoring system embodiment of the present invention.
Fig. 2 is the structured flowchart of inversion unit and measurement and data center unit in elevator energy efficiency monitoring system embodiment of the present invention.
The sequential of Fig. 3 a, 3b and 3c elevator energy efficiency monitoring system of the present invention and method-energy relationship signal, wherein, Fig. 3 a show elevator time m-service direction relation, X is elevator service direction, and t is the time; Fig. 3 b show elevator time m-instantaneous energy relation, E0 is energy, and positive dirction represents absorption energy, negative direction represent release energy (feedback); The time m-potential energy that Fig. 3 c shows elevator adds the relation of kinetic energy, and E1 is energy, and negative direction represents and sends energy.
Wherein, description of reference numerals is as follows: the commercial electrical network of 10 three-phases; 20 elevator traction machine frequency converters; 30 motors; 80 elevator energy efficiency monitoring system 1 inversion units 2 are measured and data center unit 3 sensing unit 4 data communication unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, elaboration is further given to the present invention.
In elevator working process, the consume of energy and transmission need to consider following factor: 1, absorb energy from electrical network, and electric energy is converted to mechanical energy to start elevator; 2, the energy starting elevator must include: overcome the friction force of system, lifting heavy potential energy change and acceleration and deceleration and start stop time kinetic energy change; 3, the energy consumed that rubs is expendable, and the loss in efficiency of energy in conversion process is expendable, such as: the degradation of energy that electrical efficiency causes; 4, the potential energy in elevator device and kinetic energy are recuperable, and this part energy accounts for the 20-40% of energy consumption of elevator.
Thus, the present invention proposes a kind of elevator energy efficiency monitoring system and method, the potential energy stored in elevator total energy consumption and elevator and kinetic energy separate computations, proposes the concept of energy efficiency coefficient, thus has the efficiency that elevator runs and monitor more accurately.
Particularly, the present invention proposes a kind of elevator energy efficiency monitoring method, comprising:
Arrange an inversion unit, it is connected between elevator traction machine frequency converter DC terminal and the commercial electrical network of three-phase, feeds back to electrical network in order to the regeneration direct current energy that this elevator traction machine frequency converter is produced;
One sensing unit is set, exchanges in order to what sense one first voltage of the interchange input of this elevator traction machine frequency converter and one second voltage that inputs of the direct current of one first electric current, this inversion unit and one second electric current and this inversion unit the tertiary voltage and one the 3rd electric current that export;
One measurement and data center unit are set, it connects and controls the work of this inversion unit, it connects this sensing unit to obtain this first voltage and the first electric current, this second voltage and the second electric current and this tertiary voltage and the 3rd current signal, and carries out data processing to them:
Within the time period of setting, such as 24 hours.
The total energy consumption parameter W1 of an elevator traction part is calculated according to this first voltage and the first amperemeter;
Potential energy and the kinetic energy summation parameter W2 of an elevator traction part is calculated according to this second voltage and the second electric current and/or this tertiary voltage and the 3rd amperemeter;
And use floor bottom-to-top-height to calculate M according to this elevator,
First energy efficiency coefficient K1, K1=W2/ (W1-W2),
Second energy efficiency coefficient K2, K2=(W1-W2)/M.
Design conditions:
K2=(W1-W2)/M preferentially adopts the data often running a maximum cycle (return bottom from bottom to top, interlayer does not stop) during elevator no-load to calculate.Also the average data of N number of maximum cycle (return bottom from bottom to top, interlayer does not stop) can be run according to elevator no-load, now, K2=(W1-W2)/(M*N).K2 represents that elevator no-load runs the net energy consumption of unit distance needs.
Unit: W1, W2, degree, B.O.T.U.; M, metric system rice, floor bottom-to-top-height; N, number of times; Energy efficiency coefficient, K1, without unit; K2, degree/rice.
It should be noted that, simultaneously in conjunction with the energy efficiency coefficient of this two type, the efficiency of elevator can be passed judgment on more all sidedly.
First energy efficiency coefficient K1, fully can indicate the efficiency of elevator device transformation of energy, affect the reason of this parameter: counterweight, and drop-gear box lubricates, guide rail lubrication and cooperation, towing machine or frequency converter efficiency, the free-running fit of brake wheel and time coordination etc.
Work as K1=1, elevator energy efficiency 100% (completely desirable state, does not exist in reality)
Work as K1=0.5, elevator energy efficiency 50%, very good state.
Work as K1=0.4-0.5, (40%-50%) elevator, in high efficiency scope, does not almost improve space.
When K1 is less than 0.1, (10%), represents that elevator also has the very large energy saving space, and adjustment counterweight, improves lubrication, improve towing machine or frequency converter efficiency, improves the gap of brake wheel and cooperation etc., reaches the effect improving operational energy efficiency.
Work as K1=0, elevator low-energy-efficiency runs.Elevator does not install feedback device, extremely low operating efficiency.
Second energy efficiency coefficient K2, fully can indicate the no-load efficiency index of an elevator series, such as Mitsubishi's elevator K series, and where no matter be arranged on, what environment for use, this parameter should be basically identical.If this parameter drift-out is too much, represent that this elevator efficiency aspect, has problem.Affect the reason of this parameter: drop-gear box lubricates, guide rail lubrication and cooperation, towing machine or frequency converter efficiency, during motion, brake wheel can not be decontroled completely.Counterweight and brake wheel time coordination little to this index impacts.Load is how many and use frequent degree little on the impact of these data pass.
Second efficiency parameter is the smaller the better, works as K2=0, is considered as perfect condition, in fact do not exist.
This data K2, can measure once every month, or once in a week, measure and be stored in elevator data storehouse, and the elevator of same type compares, if this numerical value is bigger than normal, represents that elevator energy efficiency can also improve.
First energy efficiency coefficient K1 is together with the second energy efficiency coefficient K2, interrelated, mutually supplements, substantially can clearly surface an elevator operating efficiency, i.e. the Overall energy efficiency of elevator.
Wherein, W1, W2 can adopt the integral in electrotechnics to calculate.Current Voltage can be direct current, simple alternating current, non-sine variable.Represent with vector function.
Exchange: time integral computing is carried out to the absolute value of the product of current phasor and voltage vector.Three-phase alternating current can be divided into the calculating of independent three-phase and be added; Time period can use 8 hours, 12 hours, 24 hours, 48 hours etc.
Direct current: time integral computing is carried out to the product of current phasor and voltage vector; Time period can use 8 hours, 12 hours, 24 hours, 48 hours etc.
W1 is the total energy consumption that elevator traction pastern divides, and includes all electric energy absorbed from electrical network, includes kinetic energy and potential energy part.
W2 is kinetic energy and the potential energy of elevator traction partial regeneration.
See Fig. 1, elevator energy efficiency monitoring system 80 embodiment of the present invention roughly comprises: an inversion unit 1; One measures and data center unit 2; One sensing unit 3 and a data communication unit 4.
This inversion unit 1 is connected between elevator traction machine frequency converter 20 and the commercial electrical network 10 of three-phase, direct current DC+, DC-in order to this elevator traction machine frequency converter 20 is produced feed back to electrical network, this inversion unit 1 has two DC port DC+, DC-and three AC port A, B, C, wherein these two DC port DC+, DC-are connected with the DC bus of this elevator traction machine frequency converter, and these three AC port A, B, C are connected with the commercial electrical network 10 of this three-phase.This elevator traction machine frequency converter 20 can have rectifier, also can be without commutator.This inversion unit 1 can be DC/AC inverter, also can be rectification adverser.Particularly, see Fig. 2, this inversion unit 1 roughly comprises: three ac filter electric capacity, 11, three pole reactor 12 (or three single-phase inductance), six high-power controlled switching devices 13 and a commutation capacitor group 14.When the motor 30 that this elevator traction machine frequency converter 20 controls works in Generator Status, the direct current that feedback energy can be provided by this elevator traction machine frequency converter 20 exports Vdc, two ends DC+, DC-inversion through two high-power controlled switching devices 13 of this three couple is interchange, more just can be fed back to the commercial electrical network 10 of three-phase through three pole reactor 12 and ac filter electric capacity 11.
This sensing unit 3, it comprises three parts, wherein: Part I IN1 is in order to sense one (group) first voltage and one first electric current (generally having the three phasevoltage of three phase current) of interchange input A0, B0, C0 of this elevator traction machine frequency converter 20; Part II IN2 is in order to sense one second voltage and one second electric current of direct current input DC+, DC-of this inversion unit 1; And Part III IN3 exports (group) tertiary voltage and one the 3rd electric current (generally having three phase current and three phasevoltage) of A, B, C in order to the interchange sensing this inversion unit 1.
This measurement and data center unit 2 can comprise industrial computer, also can comprise the microprocessor system of microprocessor (such as, digital signal processor) and peripheral circuit formation thereof.This measurement and data center unit 2 are connected with this inversion unit 1.This measurement and data center unit 2 can control the running state of this inversion unit 1 by the switch motion controlling these high-power controlled switching devices 13, such as: exchanging the voltage, frequency etc. that export can by measure and data center unit 2 regulates as required, to meet the requirement of the commercial electrical network 10 of three-phase.It should be noted that, in the present embodiment, this inversion unit 1 is directly controlled by this measurement and data center unit 2, in other embodiments of the invention, this inversion unit 1 also can comprise one and control independent of the controller of this measurement and data center unit 2, at this moment, this controller is that communication is connected with this measurement and data center unit 2.This measurement and data center unit 2 are connected with this sensing unit 3, can obtain this first voltage and the first electric current, this second voltage and the second electric current and this tertiary voltage and the 3rd current signal to carry out the calculating of energy efficiency coefficient.
This data communication unit 4 is connected with this measurement and data center unit 2, and this measurement and data center unit 2 are connected with external monitoring systems (scheming not shown) by this data communication unit 4.
Below, composition graphs 3a, 3b and 3c, be described in detail the principle of work of elevator energy efficiency monitoring system of the present invention and method.
In fig. 3 a, abscissa t is time shaft, and its unit is second, and ordinate X is direction coordinate, is upwards positive dirction, is downwards reversing sense.It should be noted that, positive aspect here, can be corresponding with the upwards operation of elevator, also can run corresponding with elevator downward.Wherein, between T0-moment, T1 moment region, moment T3-moment T5 region and moment T8 with the halted state of the corresponding elevator of rear region; The corresponding elevator positive dirction in region running state between T1-moment, T3 moment; The corresponding elevator reverse direction operation in region state between T5-moment, T8 moment.
In fig 3b, abscissa t is time shaft, and its unit is second, and ordinate E0 is total energy consumption coordinate, and its unit is kilowatt, and being upwards energy ezpenditure, is downwards energy feedback.Wherein, the halted state of the corresponding elevator in region between T0-moment, T1 moment; The forward Accelerating running state of the corresponding elevator in region between T1-moment, T2 moment; The forward smooth running state of the corresponding elevator in region between T2-moment, T3 moment; Between T3-moment, T4 moment, the forward of the corresponding elevator in region runs slowly state; The run-stopping status of the corresponding elevator in region between T4-moment, T5 moment; The reverse Accelerating running state of the corresponding elevator in region between T5-moment, T7 moment; The reverse smooth running state of the corresponding elevator in region between T7-moment, T8 moment; The state that oppositely runs slowly of the corresponding elevator in region between T8-moment, T9 moment; Moment T9 is with the run-stopping status of the corresponding elevator of rear region.Visible, forward runs, and the total energy consumption of elevator is Ea, inverted running, and the total energy consumption of elevator is Eb, carries out integral operation, both can obtain the total energy consumption parameter of an elevator traction part to these total energy consumptions in specific duration (such as 24 hours).
In figure 3 c, abscissa t is time shaft, and its unit is second, and ordinate E1 is that potential energy adds kinetic energy coordinate, and its unit is kilowatt, and being upwards energy ezpenditure, is downwards energy feedback.Wherein, between T0-moment, T3a moment, between region, T4-moment, T6 moment, region and moment T9 correspond to the state of elevator noenergy feedback with rear region; Between T3a-moment, T4 moment, between region and T8-moment, T9 moment, the corresponding elevator in region has the state of kinetic energy feedback; Between T6-moment, T8 moment, the corresponding elevator in region has the state of potential energy feedback.Visible, running slowly of elevator can produce kinetic energy feedback Em, the smooth operation of elevator can produce potential energy feedback Ep, to these kinetic energy in specific duration (such as 24 hours) and potential energy kinetic energy) in these kinetic energy consumption first ask this Central Processing Unit (CPU) need consume electrical network electric energy.Feedback Em and Ep carries out integral operation, both can obtain potential energy and the kinetic energy summation parameter of an elevator traction part.It should be noted that, the balance of elevator device is depended in potential energy feedback, theoretical, be in the state of optimum balance at elevator device, potential energy Ep may be in close proximity to zero, but no matter how elevator device balances, as long as elevator has decelerated movement, always kinetic energy feedback Em wherein exists.
Compared with prior art, elevator energy efficiency monitoring system 80 of the present invention carries out the measuring and calculating of energy efficiency coefficient by inversion unit 1, sensing unit 3 and measurement and data center unit 2, carries out the Real-Time Monitoring of efficiency after can realizing dropping into real-world operation well in elevator installation to building.
Foregoing; be only preferred embodiment of the present invention; not for limiting embodiment of the present invention; those of ordinary skill in the art are according to central scope of the present invention and spirit; can carry out corresponding flexible or amendment very easily, therefore protection scope of the present invention should be as the criterion with the protection domain required by claims.
Claims (10)
1. an elevator energy efficiency monitoring system, is characterized in that, comprising:
One inversion unit, it is connected between elevator traction machine frequency converter DC terminal and the commercial electrical network of three-phase, feeds back to electrical network in order to the regeneration direct current energy that this elevator traction machine frequency converter is produced;
One sensing unit, exchanges in order to what sense one first voltage of the interchange input of this elevator traction machine frequency converter and one second voltage that inputs of the direct current of one first electric current, this inversion unit and one second electric current and this inversion unit the tertiary voltage and one the 3rd electric current that export;
One measures and data center unit, it connects and controls the work of this inversion unit, it connects this sensing unit to obtain this first voltage and the first electric current, this second voltage and the second electric current and this tertiary voltage and the 3rd current signal, and carries out data processing to them: the total energy consumption parameter W1 calculating an elevator traction part according to this first voltage and the first amperemeter; Potential energy and the kinetic energy summation parameter W2 of an elevator traction part is calculated according to this second voltage and the second electric current and/or this tertiary voltage and the 3rd amperemeter; And use floor bottom-to-top-height M according to this elevator, calculate the first energy efficiency coefficient K1 respectively, K1=W2/ (W1-W2), and the second energy efficiency coefficient K2, K2=(W1-W2)/M.
2. according to elevator energy efficiency monitoring system according to claim 1, it is characterized in that, total power consumption parameter W1 of this elevator traction part carries out power against time integral operation to this first voltage within the scope of a setting duration and the first electric current to obtain, and its unit is degree; The potential energy of this elevator traction part and kinetic energy summation parameter W2 set this second voltage within the scope of duration and the second electric current and/or this tertiary voltage and the 3rd electric current to one to carry out power against time integral operation and obtain, and its unit is degree; This elevator uses the unit of floor bottom-to-top-height M to be rice.
3. according to elevator energy efficiency monitoring system according to claim 1, it is characterized in that, this elevator energy efficiency monitoring system also comprises a data communication unit, and this measurement and data center unit are connected with external monitoring systems by this data communication unit.
4. according to elevator energy efficiency monitoring system according to claim 1, it is characterized in that, this elevator traction machine frequency converter has rectifier or does not have rectifier.
5. according to elevator energy efficiency monitoring system according to claim 1, it is characterized in that, this measurement and data center unit comprise industrial computer or microprocessor.
6. according to elevator energy efficiency monitoring system according to claim 1, it is characterized in that, this inversion unit is DC/AC inverter or ac/dc rectification adverser.
7. according to elevator energy efficiency monitoring system according to claim 1, it is characterized in that, this inversion unit has two DC port and three AC port, and wherein these two DC port are connected with the DC bus of this elevator traction machine frequency converter, and these three AC port are connected with the commercial electrical network of this three-phase; This inversion unit comprises six high-power controlled switching devices, and these high-power controlled switching devices are controlled by this measurement and data center unit.
8. an elevator energy efficiency monitoring method, is characterized in that, comprising:
Arrange an inversion unit, it is connected between elevator traction machine frequency converter DC terminal and the commercial electrical network of three-phase, feeds back to electrical network in order to the regeneration direct current energy that this elevator traction machine frequency converter is produced;
One sensing unit is set, exchanges in order to what sense one first voltage of the interchange input of this elevator traction machine frequency converter and one second voltage that inputs of the direct current of one first electric current, this inversion unit and one second electric current and this inversion unit the tertiary voltage and one the 3rd electric current that export;
One measurement and data center unit are set, it connects and controls the work of this inversion unit, it connects this sensing unit to obtain this first voltage and the first electric current, this second voltage and the second electric current and this tertiary voltage and the 3rd current signal, and carries out data processing to them: the total energy consumption parameter W1 calculating an elevator traction part according to this first voltage and the first amperemeter; Potential energy and the kinetic energy summation parameter W2 of an elevator traction part is calculated according to this second voltage and the second electric current and/or this tertiary voltage and the 3rd amperemeter; And use floor bottom-to-top-height M according to this elevator, calculate the first energy efficiency coefficient K1 respectively, K1=W2/ (W1-W2), and the second energy efficiency coefficient K2, K2=(W1-W2)/M.
9. according to elevator energy efficiency monitoring method according to claim 8, it is characterized in that, total power consumption parameter W1 of this elevator traction part carries out power against time integral operation to this first voltage within the scope of a setting duration and the first electric current to obtain, and its unit is degree; The potential energy of this elevator traction part and kinetic energy summation parameter W2 set this second voltage within the scope of duration and the second electric current and/or this tertiary voltage and the 3rd electric current to one to carry out power against time integral operation and obtain, and its unit is degree; This elevator uses the unit of floor bottom-to-top-height M to be rice.
10. according to elevator energy efficiency monitoring method according to claim 8, it is characterized in that, when calculating this second energy efficiency coefficient K2, the data under preferential employing elevator no-load condition calculate.
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| CN106241538B (en) * | 2016-09-20 | 2019-09-20 | 广州特种机电设备检测研究院 | A kind of elevator energy consumption on-line monitoring system based on Internet of Things |
| CN108726332B (en) * | 2018-06-12 | 2019-12-13 | 北京市朝阳区特种设备检测所 | Method and apparatus for determining transmission efficiency of elevator traction system |
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| JPH0697875B2 (en) * | 1987-05-20 | 1994-11-30 | 日本オ−チス・エレベ−タ株式会社 | Inverter for driving elevator |
| JP3362753B2 (en) * | 1995-06-20 | 2003-01-07 | 株式会社安川電機 | Inverter-driven induction motor braking method |
| CN101525100B (en) * | 2008-08-29 | 2013-04-24 | 中国特种设备检验协会 | Elevator energy efficiency detector and detection method thereof |
| CN101746656B (en) * | 2008-12-16 | 2014-06-11 | 中国建筑科学研究院建筑机械化研究分院 | Elevator regenerated electricity utilizing system |
| KR200454421Y1 (en) * | 2009-07-24 | 2011-07-04 | 대한엘리베이터사업협동조합 | Power Equipment Reduced High Efficiency Elevator |
| CN101882795B (en) * | 2010-05-17 | 2012-09-26 | 宁波倍加福电子科技有限公司 | Regenerative electric energy feedback method for elevator and device thereof |
| CN201737547U (en) * | 2010-07-28 | 2011-02-09 | 何若泉 | Real-time elevator energy efficiency record analyzer |
| CN102992131B (en) * | 2012-12-13 | 2015-09-30 | 广州特种机电设备检测研究院 | Elevator energy efficiency proving installation and method |
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