CN103151778A - Motor running parameter optimizing system - Google Patents
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- CN103151778A CN103151778A CN2013101143188A CN201310114318A CN103151778A CN 103151778 A CN103151778 A CN 103151778A CN 2013101143188 A CN2013101143188 A CN 2013101143188A CN 201310114318 A CN201310114318 A CN 201310114318A CN 103151778 A CN103151778 A CN 103151778A
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Abstract
The invention relates to a motor running parameter optimizing system. The motor running parameter optimizing system provided by the invention is formed by modularizing four optimization functions which are independent from one another, and the four functions are respectively realized by an overpressure sensing component, a balanced sensing component, a power sensing component and a technology sensing component in combination with an arithmetic part and a power device in a modularization way, which can be combined with one another freely: the overpressure sensing component is preferably an FP series voltage transducer part; the balanced sensing component is preferably an FP series three single-phase voltage transducer parts; the power sensing component is preferably an FP series active power (sine) transducer part; the technology sensing component can be any technological parameter sensor part which are different in terms of technological parameters, i.e. the temperature, the pressure, the flow, the displacement, the speed and the smell, according to the technical demand of equipment to be dragged; the arithmetic part is preferably a single chip microcomputer or a computer; and the power device is preferably a two-way controllable silicon or solid module. According to the motor running parameter optimizing system, a mass of power consumption can be saved, the safety of the equipment can be effectively protected, and the service life of the equipment can be prolonged.
Description
Technical field
The present invention relates to a kind of motor operating parameter optimization system.
Background technology
as everyone knows, the low tension that national product and resident living are used is all by transformer, the high voltage of power station output to be become low-voltage, adopt high pressure to transmit to reduce electric power is remote in carrying loss and the diameter of transmission line, low tension after step-down is transported to the distance that the subscriber equipment end does not wait in addition, the electric energy of also wanting loss not wait, therefore in the whole process of distribution transmission of electricity, for reducing line loss, brownout when preventing the peak, voltage is difficult to be controlled at suitable ideal value, the voltage of terminal electricity consumption place is often far above the permissible variation value of GB, consuming device moves under the state that the voltage of being everlasting exceeds the quata.All indicate rated voltage, rated current, rated power on the nameplate of general electric equipment, power=voltage * electric current * power factor, voltage exceeds the quata, electric current, power following exceed the quata, temperature rising, the ageing of insulation of the motor that exceeds the quata also to make of electric current, power therefore the user side voltage over standard is higher, have both been wasted electric energy, to the electrical equipment injury, shortened useful life again.
Generally speaking the energy loss of the motor of driving machinery rotation comprises the mechanical friction loss of bearing and the energy loss that electric energy is transformed into mechanical energy, and electric efficiency η is power output P
2With power input to machine P
1The percentage of ratio, η=(P
2/ P
1) * 100%, the factors such as the voltage of electric efficiency and the load that drags, motor speed and power supply, frequency are directly related, and are most effective when operating in the design load scope, and supply voltage is during higher than rated voltage, and iron loss and copper loss all can increase, Efficiency Decreasing.According to electric work principle type W=P*T, power consumption equals between active power takes the opportunity, and P=U*I*cos φ (active power equals electric current and voltage power factor product), therefore W=U*I*cos φ * T, so under constant condition of time, eliminate harmful voltage of exceeding standard, just can reach the effect that cuts the waste.Formula shows, reduces power consumption, must can not guarantee if reduce excess power P(actual the exerting oneself of loading guaranteeing to eliminate extracurrent, extra power consumption that too high voltages causes under the actual required prerequisite of exerting oneself of load, is not truly energy-conservation).based on the thinking to this fundamemtal phenomena and principle, the a large amount of three-phase imbalances that exist in comprehensive production scene, low load with strong power, the factors such as technological parameter is inharmonious cause the motor efficiency to hang down inferior problem, the present invention comes from substantially, offer as a tribute nature, the original creation source of an allusion is simple, scheme is distinct, but function modoularization not only can be all but also the unfavorable factor implemented of individual event eliminate thinking, tool improves motor running environment, optimize motor operating parameter, make motor omnidistance, full operating mode runs on the design high efficiency region, dynamically keep the essential characteristic of minimum active power, effect is much better than current international and domestic low voltage motor power-saving technique product.
Summary of the invention
For addressing the above problem; the invention provides realization approach and a kind of implementation eliminates external influence factors; dynamic coordinate is also optimized motor operating parameter; make that asynchronous dragging motor is avoided exceeding the quata, the injury of unbalance voltage; the concord of maintenance and machinery and state of the art; thereby eliminate extra acting, reduce the meritorious energy of transmission, dynamically move in the design parameter economy of scope; both reduced consequent waste of energy; protect again power consumption equipment; play and save electric energy, the double action in extension device life-span, and the superimposed effect that reduces line loss, optimizes surrounding enviroment is arranged.
For achieving the above object, the present invention has adopted following technical scheme: described invention is to be made of 4 separate optimizational function modularizations, and every function all can be separately or the integrated application of n item, consists of organic whole with motor and load equipment or motor; 4 functions are realized by overvoltage induction element, balance induction element, power-aware element, technique induction element associative operation parts and electrical device modular respectively, but independent assortment; The overvoltage induction element is preferably FP series voltage transmitter parts; The balance induction element is preferably three single-phase voltage transmitter parts of FP series; The power-aware element is preferably FP series active power (sine) transmitter parts; The technique induction element is by any technological parameter sensor element that need to be selected temperature, pressure, flow, displacement, speed, smell by driven equipment technique; The preferred single-chip microcomputer of arithmetic unit or computer; The preferred bidirectional triode thyristor of electrical device or solid state module; The realization approach of 4 functions is respectively:
1). eliminate too high harmful voltage: store motor economical operation voltage design load or scope is interval in the internal memory of arithmetic unit (establish a district), send into arithmetic unit and this design load with the speed of＜400ms or the scope interval compares computing from the output signal of the overvoltage induction element of electrical device output, if the signal value that the overvoltage induction element is sent into is higher than this design load or interval certain value of scope, just output-signal is to the control end of electrical device, reduce the angle of flow of electrical device or carry out the processing such as copped wave and reduce the voltage that outputs in motor with the 0.8v step-length, circulation according to this, until the signal value that is fed through arithmetic unit by the overvoltage induction element equals to be stored in design load in arithmetic unit internal memory a district or interval certain value of scope (precision≤0.8v), served as pressure sensitivity and known that the signal value of sending into of element does not adjust when interval lower than the motor economical operation voltage design load that stores in arithmetic unit or scope,
2). eliminate alternate unbalance voltage poor: send into the speed of＜400ms the difference computing of carrying out three voltages in arithmetic unit from three single-phase voltage output signals of the balance induction element of electrical device output, minimum phase signals value deposits internal memory (establish b district) in and makes benchmark, if other certain phase signals value is higher than this fiducial value, just export this phase-signal is to the control end of electrical device, reduce the angle of flow of this phase adjustment component in electrical device or carry out the processing such as copped wave and reduce with the 0.8v step-length voltage that this outputs to motor mutually, circulation according to this, until other 2 voltage signal values that input to mutually arithmetic unit are equal to benchmark (precision≤0.8v), three-phase keeps balance, if three signal value incalculability differences are not transferred,
3). the active power optimizing: the active power sampled signal of power-aware element is sent into arithmetic unit with the speed of＜400ms, internal memory in arithmetic unit (establish c district) n unit dynamic storing on-demand update power signal instantaneous value is as reference point, the instantaneous value of dynamic change and reference point dynamically compare computing, if instantaneous value is higher than reference point, just output+signal is to the control end of electrical device, increasing the angle of flow of electrical device or work reduces processings such as copped wave and outputs to the voltage of motor with the raising of 0.8v step-length, and deposit improvement value in the c district and replace last time storage values as new reference point, every rise is carried out once for 3 times and is lowered, value after downward and reference point are relatively, if still continue to raise higher than reference point, if instantaneous value is lower than reference point, just output-signal is to the control end of electrical device, reduce the angle of flow of electrical device or do to strengthen processings such as copped wave to output to the voltage of motor with equal step-length reduction, simultaneously the reduction value is deposited in the c district and replace last time storage values as new reference point, if instantaneous value equals reference point (precision≤2w) do not adjust and replace,
4). make dragging system run on any technique optimum state: the technological parameter sampled signal of technique induction element is sent into arithmetic unit with transmitter speed, there is corresponding technological parameter optimum value table in the internal memory of arithmetic unit (establish h～x district), the technique signal value of dynamic change and the corresponding optimum value of parameter list dynamically compare, if signal value is higher than optimum value, just output-signal is to the control end of electrical device, reduces the angle of flow of electrical device or carry out the processing such as copped wave to output to voltage in motor with the reduction of 0.8v step-length; If signal value is exported+the oppositely adjustment of signal do lower than optimum value; When equaling optimum value (precision≤0.2%), the signal value that inputs to arithmetic unit do not adjust; If technique need to read corresponding parameter list content by corresponding rule by curvilinear motion, control parameter and do corresponding the variation.
Above-mentioned by the whole or n element in overvoltage induction element, balance induction element, power-aware element, technique induction element organically combine arithmetic unit, the electrical device modular is completed 4 optimizational functions, comprehensive or individual event is applied to motor and load equipment or is applied to motor, consist of respectively the motor operating parameter optimization system that performance does not wait, therefore integrated application and one that the present invention is in fact 4 inventions are declared.
Realization approach is unique, implementation or method can have the N kind, the present invention can be undertaken comprehensive or individual event optimization is applied to motor with load equipment or is applied to the motor operating parameter optimization system that single electrical mechanisms becomes performance not wait by certain mode, certain resolution, certain speed, certain step-length, certain precision fully, therefore, the present invention comprises all or the n item is used, or rename, inverting element, the application processed with u mode v resolution X speed y step-length z precision.
beneficial effect of the present invention: be from the source and optimized in essence the operational factor of motor and kept omnidistance optimum, not only can save a large amount of power consumptions, and can effectively protect the safety of equipment, extension device useful life, satisfy motor from principle and drag permanent power-type, permanent torque type, the various requirement of all kinds of different load moment such as centrifugal type mechanical property power-equipment, active power is according to dynamically being adjusted by the instantaneous load power of driven equipment, operate power is with the synchronous conversion of the change of machine utilization, automatically be adjusted to the optimal balance point of mechanical characteristics of motor and load torque characteristic, power consumption is in the suitableeest state of active power all the time, the maximum efficiency areas that dynamic operation can reach in the design of electrical motor parameter value, in addition, also can effectively reduce electric machine temperature rise and machinery noise, the protection surrounding enviroment.
Another meaning of the present invention, to replace current a large amount of installations but speed governing or technique do not allow frequency converter on the motor device of speed governing, not only can obviously improve the energy conversion efficiency of this kind equipment, from another angle minimization waste, also can eliminate or reduce the high-amplitude harmonic wave that comes into operation in a large number and generate and sneak into electrical network because of frequency conversion equipment, optimize the electric network source quality, improve the power supply quality that is connected on other power consumption equipments of electrical network, raising extends the useful life with net equipment with the utilization rate of electrical of net power consumption equipment; Thereby, tool of the present invention widely, far-reaching multiple meaning, source benefit, economic benefit, comprehensive benefit are very remarkable, also will help to set up correct energy-conservation concept in the Electric Traction apparatus field.
Description of drawings
Fig. 1 is that repertoire that the large parts of 4 functions of the present invention six consist of is applied to the system schematic on motor and load equipment.
In figure: 1-electric network source, 2-overvoltage induction element, 3-balance induction element, 4-power-aware element, 5-technique induction element, 6-arithmetic unit, 7-electrical device, 8-motor, 9-load equipment.
Embodiment
Make a detailed explanation below in conjunction with 1 pair of the specific embodiment of the present invention of accompanying drawing.
System framework consists of explanation:
The overvoltage perception is also eliminated: the first element of optimizing the motor economical operation, from motion tracking mains supply voltage and carry out regulating and controlling, eliminate too high harmful voltage, a certain set point or scope that the supply voltage that is input to motor side is controlled in the national standard scope all the time is interval, and guarantee motor dynamic economy all the time runs on the efficient region scope that designs load voltage value; Meanwhile in power network overvoltage regulating and controlling process, the synchronous overvoltage Resonance Wave Composition of cutting down, reduced the higher harmonic content in the motor input power, improve the quality of power supply from another intension, reduced the increase factor of the multiple losses such as motor magnetic hysteresis loss, eddy current loss, bearing friction loss, rotor copper loss and stray loss that cause on the contrary mutually because of most harmonic torque directions and first-harmonic torque direction.
The balance perception is also eliminated: kinetic measurement imbalance of three-phase voltage degree, eliminate alternate unbalance voltage poor, and take the value of the minimum phase of voltage as benchmark, other 2 are adjusted to this value mutually, reach three-phase equilibrium; Improve from another point of view power supply quality, make it meet motor economical operation condition, eliminate operating electric energy loss the second ascending factor of motor and unsafe factor, further improve the motor operational efficiency, ensure motor safety, economical operation.
power-aware and optimizing: from motion tracking active power and dynamic adjustments, all the time will move active power remains on and the analog value of loading, improve the motor operational efficiency from tri-layer, the operation of guarantee motor safety, and make motor can adapt to the load equipment different capacity, satisfy constant moment of force, permanent power, become the different requirements of the different load type machineries such as power, and dynamically in the high efficiency region economical operation, fundamentally solved motor rated power and the equipment unbecoming problem of exerting oneself, optimized the operational factor of motor from process, from having eliminated in nature the not good and additional energy source that the causes waste internal cause of inductive circuit electric current and active energy nonlinear correlation running current value, from having saved to the full extent electric power resource, effectively improved from supply line → motor → by driving machinery equipment by some equipment and parts consist of the efficiency of whole electric drive system.
technique perception and optimization: at the power electronic component non-frequency field of Electric Traction control application of temperature, pressure, flow, displacement, speed, the various technological parameters such as smell, according to the production technology demand of the plant equipment that is dragged, the sensor process signal is regulated after computing, make motor run on any technological requirement optimum state, this function is used on the equipment that can control technological parameter, can make the motor that this optimizer is housed replace existing a large amount of frequency control motor that uses, the essence that solves frequency control is that the frequency reducing operation makes motor off-design parameter thereby system effectiveness decline loss of electric machine actual value present the essence deficiency of rising, both can improve a great deal of motor of former use frequency converter timing and pacify not speed governing of frequency converter or the operating efficiency of motor that can not speed governing, reduce Dian Li Damage consumption from another scope, and can eliminate the high-load high order harmonic component that this part frequency conversion source produces, purify electrical network, thereby improve the power quality that is connected on other power consumption equipments of electrical network, improve the efficiency of other power consumption equipments, society's source benefit is remarkable.
The below discusses the embodiment of native system to use FP series transmitter as example:
function one, eliminate too high harmful voltage: thinking realizes that the overvoltage induction element 2 in picture frame adopts FP series voltage transmitter (special transmitter thick film circuit, adopt asic chip, the import loose mails such as supporting superlinearity voltage transformer, integrated degree is high, reliable operation, the temperature characterisitic of tool excellence and long-time stability, good anti-surge performance and overload capacity, accuracy class 0.2%, long-term stability≤± 0.2%/year, without cumulative errors, temperature impact :≤100ppm/ ℃, response time＜400ms, operating frequency nominal frequency ± 10%, 2 times of voltage maximums are continuous, do not need frequent verification and maintenance, meet IEC, ANSI, the relevant criterion such as BEAMA require), the output of the electric power adjustment component that transmitter input is made of pressure regulation devices such as bidirectional triode thyristor or solid state modules from the electrical device 7 in picture frame, the voltage sampling signal of the 2mA of output～5mA high level accuracy high linearity is sent into the arithmetic unit 6 in picture frame, arithmetic unit 6 is that technical grade single-chip microcomputer or computer are guaranteed high reliability operation steady in a long-term, store a certain set point or interval range in national grid power supply technique normal voltage deviation allowable value ± 5% scope in single-chip microcomputer or computer, example 380v or 375v～385v, this set point or interval range value compare computing with voltage sampling signal with the speed input of＜400ms, if voltage signal values is higher than certain value of set point or interval range, just output-signal is to the control end of electrical device 7 adjustment component (being made of pressure regulation devices such as bidirectional triode thyristor or solid state modules) of picture frame, reduce the angle of flow of electrical device 7 or carry out the processing such as copped wave and reduce the voltage that outputs to motor 8 in picture frame with the 0.8v step-length, so circulation, equal set point in arithmetic unit 6 or interval range value (precision≤0.8v) until input to the signal value of arithmetic unit 6, do not adjust in the period of line voltage lower than set point, the operating voltage that guarantees to be input to the motor power end at any time in all in the optimal economic range of operation of design parameter,
In like manner, in the elimination process of power network overvoltage, eliminated simultaneously the overvoltage Resonance Wave Composition of sneaking into electrical network.
function two, eliminate alternate unbalance voltage poor: the balance induction element 3 in picture frame adopts 3 FP series single-phase voltage transmitters, the input of FP series single-phase voltage transmitter is connect the output of the electric power adjustment component that the electrical device 7 in picture frame is made of pressure regulation devices such as bidirectional triode thyristor or solid state modules, 3 phase voltage signals are sent into the arithmetic unit 6 that is made of single-chip microcomputer or computer of arithmetic unit 6 in picture frame, carry out the difference operation of 3 voltages, minimum value mutually deposits internal memory (establish b district) in and makes benchmark, if other certain phase signals value is higher than this fiducial value, just export this phase-signal is to the control end of the electric power adjustment component that is made of pressure regulation devices such as bidirectional triode thyristor or solid state q-switched die blocks of picture frame electrical device 7, reduce the angle of flow of this phase adjustment component in electrical device 7 or carry out the processing such as copped wave and reduce with the 0.8v step-length this phase voltage that this outputs to motor 8 in picture frame mutually, be equal to benchmark (precision≤0.8v) until input to other 2 signal values of 6, three-phase keeps balance, if 3 signal incalculability differences do not adjust, circulation according to this guarantees that the voltage value that is input to the motor power end all keeps three-phase equilibrium at any time.
function three, automatic optimal active power: the power-aware element 4 in picture frame is adopted FP series active power (sine) transmitter, sampled signal is sent into the arithmetic unit that is made of single-chip microcomputer or computer of arithmetic unit 6 in picture frame, ward off a storage element dynamic storing power signal instantaneous value in arithmetic unit 6, and take storage values last time as reference point, the instantaneous value of dynamic change and reference point constantly compare computing, if instantaneous value is higher than reference point, just output+signal is to the control end of electrical device 7, increase the angle of flow of electrical device 7 or reduce processings such as copped wave and output to the voltage of motor 8 with the raising of 0.8v step-length, and this value is replaced last time storage values as new reference point, every rise is carried out for 3 times and is once lowered operation, value after downward and reference point are relatively, if still continue to raise higher than reference point, if instantaneous value is lower than reference point, just output-signal is to the control end of electrical device 7, reduce the angle of flow of electrical device 7 or strengthen processings such as copped wave to output to the voltage of motor 8 by same step-length reduction, the reduction value is replaced last time storage values as new reference point, if equaling reference point, instantaneous value do not adjust (precision≤2w), value is not replaced, circulation according to this, make the motor operation active power time in office, under arbitrary operating mode all at the most suitable state.
function four, make system run on any technique optimum state, technique induction element in picture frame 5 is adopted temperature, pressure, flow, displacement, speed, the technological parameter transducer that smell etc. are concrete, sampled signal is sent into arithmetic unit 6 in picture frame by transmitter speed, there is corresponding technological parameter optimum value table in correspondence memory district in arithmetic unit 6, signal value and the parameter list of dynamic change compare, if signal value is higher than optimum value, the control end of output-signal electrical device 7 to the picture frame just, reduce the angle of flow of electrical device 7 or carry out the processing such as copped wave and reduce the voltage that outputs in picture frame motor 8 with the 0.8v step-length, if instantaneous value is exported+the oppositely adjustment of signal do lower than optimum value, when the signal value that inputs to arithmetic unit (6) equals optimum value, (precision≤0.2%) does not adjust, circulation according to this make motor and the arbitrary parameter of any technique require Dynamic Matching, and electric efficiency is dynamically the highest.Technique need to read corresponding parameter list content by corresponding rule by the equipment of curvilinear motion, controls parameter and does corresponding the variation.
Some data declaration examples after utilization motor operating parameter optimization system (individual event function one):
Overlapped the described elimination too high voltages of function one, the supply voltage of inputting motor has been controlled at the GB set point, ensured that motor runs on the overvoltage optimal control circuit of the efficient district scope of rated voltage design load; Be that 55kw, actual power are in 40.5～45.78kw scope at rated power, load factor is on 0.74～0.83 vacuum pump dragging motor, adopting active electric energy meter is that gauge table has carried out actual power savings test, to netting electricity, optimizing two kinds of work condition states to produce like products, uninterruptedly to operate to continuously condition and recorded respectively each 72 hours, end value is net electricity condition accumulative total electric weight 3296kwh, average power 45.78kw; Optimal State accumulative total electric weight 2916kwh, average power 40.5kw, power saving rate 11.452 %; Again rated power be 75kw, actual power in 64.97～71.56kw scope, the motor load rate is to carry out Record Comparison take the unit product power consumption as standard on 0.86～0.85 equipment, end value is that under the net electricity condition, power consumption is 30.707 kwh/t; Under Optimal State, power consumption is 28.101 kwh/t; Power saving rate is 8.49 %; Thus, energy-conservation value of the present invention has some idea of; From the objective reality angle, the electric machinery battery saving arrangement that occurs so far under the situation of motor load rate 〉=0.7, loses power saving capability substantially, can only increase because the own loss factor makes power consumption if install and use.Can estimate, after 4 functions of this optimization system are all used, actual effect will be more remarkable.
4 optimizational functions of this optimization system are in fact that integrated application and the one of 4 individual event inventions declared, and their realization approach is Core Value of the present invention; Realization approach is uniqueness, implementation or method can have the N kind, element described in claims of the present invention, speed, step-length, precision etc. are only preferred, be not essential, though in which way or method realize described thinking, comprise only adopt realization approach one of them, do not use technical scheme or the product of preferred element, all at the row of protection category of the present invention; Even comprise the thorough conversion of title of the present invention, so long as adopted technical scheme or the product of one of 4 realization approachs that the present invention announces, all do not break away from proprietary category of the present invention, be still effective protection range of law; Some data declaration examples after utilization motor operating parameter optimization system (individual event function one) have clearly illustrated that this definition.
Claims (2)
1. the motor operating parameter optimization system, is characterized in that being made of 4 separate optimizational function modularizations, and every function all can be separately or the integrated application of n item, consists of organic whole with motor (8) and load equipment (9) or separate electrical motor (8); 4 functions are realized by overvoltage induction element (2), balance induction element (3), power-aware element (4), technique induction element (5) associative operation parts (6) and electrical device (7) modular respectively, but independent assortment; Overvoltage induction element (2) is preferably FP series voltage transmitter parts; Balance induction element (3) is preferably three single-phase voltage transmitter parts of FP series; Power-aware element (4) is preferably FP series active power (sine) transmitter parts; Technique induction element (5) is by any technological parameter sensor element that need to be selected temperature, pressure, flow, displacement, speed, smell by driven equipment technique; The preferred single-chip microcomputer of arithmetic unit (6) or computer; The preferred bidirectional triode thyristor of electrical device (7) or solid state module; The realization approach of 4 functions is respectively:
1). eliminate too high harmful voltage: store motor economical operation voltage design load or scope is interval in the internal memory of arithmetic unit (6) (establish a district), send into arithmetic unit (6) and this design load with the speed of＜400ms or the scope interval compares computing from the output signal of the overvoltage induction element (2) of electrical device (7) output, if the signal value that overvoltage induction element (2) is sent into is higher than this design load or interval certain value of scope, just output-signal is to the control end of electrical device (7), reduce the angle of flow of electrical device (7) or carry out the processing such as copped wave and reduce the voltage that outputs in motor (8) with the 0.8v step-length, circulation according to this, until the signal value that is fed through arithmetic unit (6) by overvoltage induction element (2) equals to be stored in design load in arithmetic unit (6) internal memory a district or interval certain value of scope (precision≤0.8v), served as pressure sensitivity and known that the signal value of sending into of element (2) does not adjust when interval lower than the motor economical operation voltage design load that stores in arithmetic unit (6) or scope,
2). eliminate alternate unbalance voltage poor: send into the speed of＜400ms the difference computing of carrying out three voltages in arithmetic unit (6) from three single-phase voltage output signals of the balance induction element (3) of electrical device (7) output, minimum value mutually deposits internal memory (establish b district) in and makes benchmark, if other certain phase signals value is higher than this fiducial value, just export this phase-signal is to the control end of electrical device (7), reduce the angle of flow of this phase adjustment component in electrical device (7) or carry out the processing such as copped wave and reduce with the 0.8v step-length voltage that this outputs to motor (8) mutually, circulation according to this, until other 2 voltage signal values that input to mutually arithmetic unit (6) are equal to benchmark (precision≤0.8v), three-phase keeps balance, if three signal value incalculability differences do not adjust,
3). the active power optimizing: the active power sampled signal of power-aware element (4) is sent into arithmetic unit (6) with the speed of＜400ms, internal memory in arithmetic unit (6) (establish c district) n unit dynamic storing on-demand update power signal instantaneous value is as reference point, the instantaneous value of dynamic change and reference point dynamically compare computing, if instantaneous value is higher than reference point, just output+signal is to the control end of electrical device (7), increasing the angle of flow of electrical device (7) or work reduces processings such as copped wave and outputs to the voltage of motor (8) with the raising of 0.8v step-length, and deposit improvement value in the c district and replace last time storage values as new reference point, every rise is carried out once for 3 times and is lowered, value after downward and reference point are relatively, if still continue to raise higher than reference point, if instantaneous value is lower than reference point, just output-signal is to the control end of electrical device (7), reduce the angle of flow of electrical device (7) or do to strengthen processings such as copped wave to output to the voltage of motor (8) with equal step-length reduction, simultaneously the reduction value is deposited in the c district and replace last time storage values as new reference point, if instantaneous value equals reference point (precision≤2w) do not adjust and replace,
4). make dragging system run on any technique optimum state: the technological parameter sampled signal of technique induction element (5) is sent into arithmetic unit (6) with transmitter speed, there is corresponding technological parameter optimum value table in the internal memory of arithmetic unit (6) (establish h～x district), the technique signal value of dynamic change and the corresponding optimum value of parameter list dynamically compare, if signal value is higher than optimum value, just output-signal is to the control end of electrical device (7), reduce the angle of flow of electrical device (7) or carry out the processing such as copped wave and reduce the voltage that outputs in motor (8) with the 0.8v step-length, if signal value is exported+the oppositely adjustment of signal do lower than optimum value, when equaling optimum value (precision≤0.2%), the signal value that inputs to arithmetic unit (6) do not adjust, if technique need to read corresponding parameter list content by corresponding rule by curvilinear motion, control parameter and do corresponding the variation.
2. motor operating parameter optimization system according to claim 1, is characterized in that organically combining arithmetic unit (6), electrical device (7) modularization comprehensive or individual event by the whole or n element in overvoltage induction element (2), balance induction element (3), power-aware element (4), technique induction element (5) consists of optimization system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111868653A (en) * | 2018-04-12 | 2020-10-30 | 欧姆龙株式会社 | State change detection device and state change detection method |
| CN117638834A (en) * | 2024-01-25 | 2024-03-01 | 深圳安丰泰联合科技有限公司 | Intelligent voltage reduction control system and method for electric appliance |
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| CN117638834A (en) * | 2024-01-25 | 2024-03-01 | 深圳安丰泰联合科技有限公司 | Intelligent voltage reduction control system and method for electric appliance |
| CN117638834B (en) * | 2024-01-25 | 2024-03-26 | 深圳安丰泰联合科技有限公司 | Intelligent voltage reduction control system and method for electric appliance |
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Application publication date: 20130612 |