CN100409563C - Motor intelligent power-saving protector - Google Patents
Motor intelligent power-saving protector Download PDFInfo
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- CN100409563C CN100409563C CNB2007100350931A CN200710035093A CN100409563C CN 100409563 C CN100409563 C CN 100409563C CN B2007100350931 A CNB2007100350931 A CN B2007100350931A CN 200710035093 A CN200710035093 A CN 200710035093A CN 100409563 C CN100409563 C CN 100409563C
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Abstract
The disclosed intelligent power-saving protective device for motor comprises: a primary power circuit with output end connected with the input of following two circuits, a switch power circuit with output end connected with input end of all following members, a power drive circuit with input end connected with the PWM generating circuit and microprocessor and the switch power, a microprocessor with input end connected all of the power drive circuit, protective circuit, the power detection, the parameter controller and the switch power circuit; a PWM generating circuit, a protective circuit, a power detection circuit, a function extension interface, a parameter setting controller, and a display. This invention is convenient and reliable.
Description
Technical field
The present invention relates to a kind of motor electricity saving protective device, especially relate to the motor intelligent power-saving protector in a kind of industry and the civilian plant equipment.
Background technology
In the plant equipment of all trades and professions, exhausted most motor that uses is as transmission device.According to standard, nearly all plant equipment is when the configuration motor, must match motor according to the peak load of plant equipment in actual moving process, and configuration leaves certain surplus to power of electric motor, to satisfy the greatest requirements of plant equipment in actual moving process.Simultaneously, plant equipment is generally non-constant load or loads under the operating mode of frequent variation and move in actual moving process.On the other hand, motor will produce and flow in big wink when starting, and be generally 5～7 times of rated current, and this has just produced suitable energy loss, has wasted a large amount of electric energy.
Existing motor electricity saving device mainly adopts Y/ Δ conversion method control motor winding, to reach purpose of saving.Because this series products can't detect load state in real time, dynamic tracking is carried out in load, thereby power savings is not good enough.Also have a kind of passing through to adjust the thyristor angle of flow, voltage is regulated, to reach the purpose of saving method.The main deficiency of this technical products is, when reducing voltage, the also corresponding reduction of the torsional forces of motor, when motor in running, when its shock load surpassed certain value, electric current increased on can be at double, causes bigger electric energy consume on the contrary.At present, a kind of RHVC is arranged,, realize speed regulating control, also have certain electricity-saving function simultaneously motor by the frequency preset parameter value.Because the main design function of this device is to realize to motor speed adjusting control, to satisfy its specific operation load, as blower fan, water pump, air-conditioning etc., so fibrous root is according to needs, by operator's predeterminated frequency parameter, to reach required motor speed.Because this device do not possess load from motion tracking, real-time auto-control function, thus generally inapplicable to the load of frequent variation in service, can not reach the purpose of economize on electricity; On the other hand, this technical products is highly professional in practicality, controls comparatively loaded down with trivial detailsly, and fibrous root is according to the default different parameter value of different needs, thereby operation easier is bigger, is difficult for popularizing; The 3rd, the man-machine conversation mode is digital code name, and not directly perceived and difficult note has increased and controlled difficulty to the operator; The 4th, function expansion limitation is bigger, need realize its function expansion by peripheral unit, has increased user's purchase cost; The 5th, the design of power component protective circuit owes rationally to burn power component easily, and therefore, product quality can't reliably be guaranteed.
Summary of the invention
The technical problem to be solved in the present invention is: the defective at prior art exists provides a kind of power savings good, easy and simple to handle, the motor intelligent power-saving protector of reliable operation.
Technical scheme of the present invention is: it comprises that main power circuit, switching power circuit, power driving circuit, microprocessor, PWM generative circuit, protective circuit, power sense circuit, function expansion mouth, parameter are provided with controller, display, the output of described main power circuit is connected with the input of power driving circuit and Switching Power Supply respectively, and the output of switching power circuit is connected with the input of power driving circuit, microprocessor, PWM generative circuit, protective circuit, power sense circuit, display respectively; The input of power driving circuit is connected with the input of PWM generative circuit, microprocessor and switching power circuit respectively, and output is connected with the input of protective circuit; The input of microprocessor is connected with the output that power driving circuit, protective circuit, power sense circuit, parameter are provided with controller, switching power circuit respectively, and output is connected with the input of PWM generative circuit and display respectively; The input of described function expansion mouth is connected with the output of switching power circuit, and output is connected with the input of described microprocessor.
Store motor operation and economize on electricity parameter and standard database in the described microprocessor, during operation, microprocessor is at first surveyed the type of load motor, the corresponding data of the respective type motor of the data that feed back and standard database is analyzed comparison, automatically transfer the operation and the economize on electricity supplemental characteristic of respective type motor, come initial launch by the type motor power saving supplemental characteristic; If database does not have the type of the load motor of surveying, microprocessor will be automatically from standard database selector should the operational factor of motor and economize on electricity parameter, to reach coupling; When the parameter of parameter that is provided with and detection feeds back to microprocessor, microprocessor will carry out analyzing and processing in real time, provide corresponding instruction, and input display shows.
Its job step is: after the CPU initialization, carry out equipment self-inspection, power supply detects normal back CPU output initial launch data and gives the SPWM pulse shaping circuit, produce required IGBT drive signal, after photoelectricity isolation, power amplification, be added to the control input end of IGBT, make IGBT drive load running, running state data is sent to display shows; Simultaneously, (1) detects the signal that current sample feeds back, make comparisons and output signal and feedback signal are made comparisons with motor overload, the apparatus overload protection value set respectively, equipment is adjusted to maximum energy-saving running status (active from the energy-conservation regulative mode of motion tracking) in real time; (2) receive power detection signal, make comparisons with overvoltage protection value and the under-voltage protection value set, and make corresponding processing; (3) survey whether output short circuit protection signal of IGBT short-circuit protection part; Whether the temperature sensor on the motor has heat alarm output; Whether the temperature sensor on the equipment cooling device has heat alarm output; (4) detect the control input end, whether startup, shutdown are arranged, suddenly stop, the reset signal input, after above-mentioned detection data analysis is handled, proceed to next operation sense cycle.
Beneficial effect of the present invention: have motor operation and economize on electricity standard parameter database in (1) microprocessor of the present invention, and constitute an intelligent control system with intelligent control program, this unique design, strengthened accurate control greatly to motor, effectively avoided the motor operational parameter control not match, the phenomenon generation that causes heating even burn; (2) when initialization moves, detect every technical parameter of motor automatically, call the operational factor that is complementary with motor in the database automatically, make motor reach optimal operational condition; (3) have dynamic tracking, real-time monitoring function.The every operational factor of the continuous detecting motor of microprocessor when operation, and by logic analysis, dynamic tracking, the real-time monitoring motor, make motor be in most economical running status all the time, change the control model of Passive Control (technical parameter is set) for initiatively regulating and control of frequency converter, with the economize on electricity field that is applied to of variable-frequency control technique success; (4) the function expansion mouth of preferred version setting can be realized function expansion quickly and easily, need not resemble existing converter plant when function is expanded, and needs the complete expanding unit of other apolegamy.(5) owing to adopted standardized database, the interface parameter that present RHVC is numerous and diverse is provided with control model to be simplified greatly, only need 8 basic parameters to set, other operation is handled automatically by microprocessor entirely, effectively reduce operating personnel's operation easier and misoperation probability, easy to utilize; (6) change into LED/VFD from digital display mode and show that human-computer dialogue is more directly perceived, the operation of being more convenient for.
Description of drawings
Fig. 1 is the block diagram of one embodiment of the invention;
Fig. 2-1,2-2,2-3,2-4 are main circuit schematic diagram (comprising microcontroller circuit, PWM generative circuit, power driving circuit, overcurrent, overheating protection circuit, display and parameter setting circuit, expansion port circuit etc.) embodiment illustrated in fig. 1;
Fig. 3-1,3-2,3-3 are power circuit principle figure embodiment illustrated in fig. 1 (comprising switching power circuit, power sense circuit, under-voltage/overvoltage, short-circuit protection circuit etc.);
Fig. 4 is a control program logic block-diagram embodiment illustrated in fig. 1;
Fig. 5 is the automatic tracking section logic block-diagram of control program embodiment illustrated in fig. 1.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
With reference to Fig. 1, present embodiment by main power circuit 10, switching power circuit 11, power driving circuit 12, microprocessor 13, PWM generative circuit 14, protective circuit 15, power sense circuit 16, function expansion mouthfuls 17, parameter controller 18 is set, display 19 is formed; The output of main power circuit 10 is connected with the input of Switching Power Supply 11 with power driving circuit 12 respectively; The output of Switching Power Supply 11 is connected with the input of power driving circuit 12, microprocessor 13, PWM generative circuit 14, protective circuit 15, power sense circuit 16, function expansion mouth 17, display 19 respectively; The input of power driving circuit 12 is connected with PWM generative circuit 14, microprocessor 13 and the input of switching power circuit 11 respectively, and output is connected with the input of protective circuit 15; The input of microprocessor 13 is connected with the output that power driving circuit 12, protective circuit 15, power sense circuit 16, function expansion mouthfuls 17, parameter are provided with controller 18, switching power circuit 11 respectively, and its output is connected with the input of PWM generative circuit 14 with display 19 respectively.
With reference to Fig. 3-1, described main power circuit 10: be connected in series successively by protecting against shock circuit, three-phase bridge rectification module, quick fuse formula protective tube, filtering capacitor.The protecting against shock circuit is contacted by the normally open contact parallel connection of high-power resistance and relay and forms, and three phase mains becomes direct current by input terminal and is added on the filtering capacitor by quick fuse formula protective tube after the protecting against shock circuit is delivered to the three-phase bridge rectification module; Not adhesive of relay M1 during energising, power supply is by after the high-power resistance R1 current limliting, main power source capacitor group C25, C26 are charged, the Switching Power Supply operate as normal, after the microprocessor self check is normal, make relay obtain normal operating voltage adhesive, thereby with current-limiting resistance R1 shorted on both ends, main power source partly enters normal operating conditions, and divides two the tunnel to be delivered to Switching Power Supply input and IGBT main power source input power supply;
With reference to Fig. 3-1, described switching power circuit 11: constitute by switch transformer B400, switch transistor T 400, power supply control chip UC3844 (IC400) and peripheral circuit; Described peripheral circuit is made of insurance resistance R B421, anti-reverse diode D430, filter capacitor C438, C439; The end of insurance resistance R B421 is connected with the positive pole of main power source, and the other end is connected with the end of D430; C438, C439 contact mutually, and positive pole is connected with the positive pole of D430, and negative pole is connected with the negative pole of main power source; Behind the main power source input dc power; behind insurance resistance R B421, anti-reverse diode D430; and after filter capacitor C438, C439 filtering; one tunnel the 8th pin that exports switch transformer B400 to exports the D level of power supply switch tube T400 to through the 7th pin; another road exports the Switching Power Supply start unit to, and described Switching Power Supply start unit absorbs 6 parts such as circuit, Switching Power Supply current foldback circuit, Switching Power Supply output power supply circuit, supply voltage switch testing circuit by Switching Power Supply start-up circuit, Switching Power Supply voltage stabilizing circuit, Switching Power Supply spike and forms:
With reference to Fig. 3-1, described Switching Power Supply start-up circuit, by RB421 by R444 to C421 charging (another pin is connected to IC400 the 7th pin), when C421 two terminal voltages rise to 17V, the pedestal generator of IC400 the 7th pin produces the reference voltage of 5V through the output of IC400 the 8th pin, is connected to IC400 the 4th pin through RC timing element R446, C426, when the voltage on the C426 rises to certain value, electronic switch conducting in the 4th pin, C426 is by the discharge of IC400 the 4th pin; When C426 voltage was reduced to certain value, the electronic switch in the 4th pin disconnected, and C426 charges by R446, and the sawtooth voltage of generation produces square-wave voltage by the 4th pin through the sawtooth wave shaping circuit.When square-wave voltage is height electricity frequency, IC400 the 6th pin outputting drive voltage, export the G level of T400 to, the T400 conducting, its D level out-put supply produces induced electromotive force on the winding between 8～7 pin of B400, because mutual inductance phenomenon, so 5～6 pin windings between B400 produce 5 pin for just, 6 pin are negative induced electromotive force, the positive pulse voltage of 5 pin is by the D421 rectification, C451 filtering produces the voltage of 21V, is added to the 7th pin of IC400 by D422, for IC400 provides stable power voltage, at the T400 saturation conduction therebetween, the rectification circuit that the B400 secondary winding is connect oppositely ends because of induced electromotive force, and electric energy just is stored among the B400 with the situation of magnetic energy, when square-wave voltage is low level, IC400 the 6th pin no-output, T400 is reverse by induced electromotive force, and the rectification circuit that the B400 secondary winding is connect is started working, and exports each road direct voltage;
With reference to Fig. 3-1, described Switching Power Supply voltage stabilizing circuit, when line voltage raises or load lightens when causing that the B400 output end voltage raises, the pulse voltage of the feedback winding of B400 also raises, the direct voltage that is added on the DW400 after D421 rectification, the C451 filtering also raises, the voltage that is added to 2 pin of IC400 make R448, R441 dividing potential drop by DW400 when boosted voltage surpasses 21V after surpasses 2.5V, this voltage and internal reference 2.5V voltage ratio after, the 6 pin output duty of ratio of control IC 400 descends, and T400 is turn-offed in advance.This moment, B400 was because of the ON time of T400 shortens energy storage decline, made the secondary output voltage of B400 drop to setting.When line voltage decline or load change weight, the voltage stabilizing process is with above-mentioned opposite;
With reference to Fig. 3-1, described Switching Power Supply spike absorbs circuit, for preventing at T400 between the off period, the spike of the pulse voltage of reaction of its D level punctures T400, absorb circuit and be provided with the spike of forming by R455, R454, R453, C420, D420, DF420, the peak voltage that the D level of T400 is subjected to charges to C420 through D420, DF420, R453, absorbs peak voltage; R455, R454 provide discharge loop for C420;
With reference to Fig. 3-1; described Switching Power Supply current foldback circuit; the resistance R 452 of the S utmost point of T400 is an overcurrent sample resistance, causes that for a certain reason the S electrode current of T400 increases, and the pressure drop on the R452 is also increased; the voltage of delivering to 3 pin of IC400 by R443 also raises; when this voltage surpasses 1V, the 6 pin no-outputs of IC400, T400 ends; power supply quits work, and realizes overcurrent protection.
With reference to Fig. 3-2,3-1, described Switching Power Supply output power supply circuit, the D401 rectification, C400 filtering output+18V, the D400 rectification, C401 filtering output-9V is brachium pontis drive circuitry under U, V, the W three tunnel; The D406 rectification, C410 filtering output+18V, the D410 rectification, C406 filtering output-9V is brachium pontis drive circuitry on the W road; The D407 rectification, C411 filtering output+18V, the D411 rectification, C407 filtering output-9V is brachium pontis drive circuitry on the V road; The D408 rectification, C412 filtering output+18V, the D412 rectification, C408 filtering, output-9V is brachium pontis drive circuitry on the U road; D414, D413 rectification, C413 filtering, output 24V is the radiator fan power supply; The D409 rectification, C405 filtering, the T402 voltage stabilizing, output 5V voltage is the motherboard circuit power supply; The D403 rectification, C403 filtering, the T403 voltage stabilizing goes out-12V voltage, the D404 rectification, C404 filtering, T404 voltage stabilizing output+12V voltage is Hall element IP283, IP280 power supply;
With reference to Fig. 3-1,3-2; the supply voltage switch testing circuit; the D405 rectification; C409, C410 filtering; after R292, R293, R294, the sampling of R295 dividing potential drop; carry out the A/D conversion through R026 to (26) pin of microprocessor 13; when if the voltage data that obtains is higher than the overvoltage data of setting or is lower than the under voltage data value; make corresponding overvoltage protection and under voltage protection relatively; and output protection data to display 19 shows; if be between two values then disregard, send display 19 to show voltage data.
With reference to Fig. 2-4,3-3, described power driving circuit 12: form by U signal circuit, V signal circuit and W signal circuit.U signal circuit: through R14, after R15 delivers to ICA200, ICB200 and handles, send down the brachium pontis signal through TB200 by ICA200, the following brachium pontis in the power amplification circuit amplification rear drive IGBT module that TB201 forms from the SPWM signal of 16,17 pin of IC3 output.Send the brachium pontis signal through TA220 by ICB200, after the power amplification circuit that TA221 forms amplifies, drive the last brachium pontis of IGBT module; The V signal circuit: from the SPWM signal of 14,15 pin of IC3 output through R12, R13 delivers to and sends down the brachium pontis signal through TB210 by ICA210 after ICA210 (PC929), ICB210 (PC923) handle, and the power amplification circuit that TB201 forms amplifies the following brachium pontis in the rear drive IGBT module.Send the brachium pontis signal through TA210 by ICB210, after the power amplification circuit that TA211 forms amplifies, drive the last brachium pontis of IGBT module; The W signal circuit: through R10, R11 delivers to ICA220, ICB220 and handles the back and send down the brachium pontis signal through TB200 by ICA220, the following brachium pontis in the power amplification circuit amplification rear drive IGBT module that TB201 forms from the SPWM signal of 12,13 pin of IC3 output.Send the brachium pontis signal through TA220 by ICB220, after the power amplification circuit that TA221 forms amplifies, drive the last brachium pontis of IGBT module.
With reference to Fig. 2-1, described microprocessor 13: be the LPC936 microprocessor, wherein store the motor operation and the economize on electricity parameter and standard database of kind of model surplus in the of 1600, during operation, microprocessor 13 is at first surveyed the type of load motor, the data and the normal data database data that feed back are analyzed comparison, transfer the motor power saving and the operational parameter data of correlation type automatically, come initial launch by the type motor power saving supplemental characteristic; If database does not have the type of the load motor of surveying, microprocessor will select to meet most the operational factor and the economize on electricity parameter of this motor automatically from the electricity-saving appliance database, to reach the most accurate coupling; When the parameter of parameter that is provided with and detection feeds back to microprocessor 13, microprocessor 13 will carry out analyzing and processing in real time, provide corresponding instruction, and input display 19 shows.
With reference to Fig. 4, step 101 is initialization, initially finishes, and enters next step 102, and whether self check is normal, if not, then with transfer of data to 112, shuts down; If yes, then self-checking number is reportedly transported to next step 111, accept control command and adjust service data, enter operating procedure 103 then, enter automatic tracking step 106 simultaneously, detect whether normal step 108 of running protection value, if yes, continue operation, if not, then, shut down transfer of data to 112; Step 110 is provided with control command for parameter, step 111 pair parameter is provided with control command carries out adjusting service data after logic analysis is judged, and data are delivered to step display 109, operating procedure 103, enters service data sampling step 107, carry out the service data sampling, to step 108, whether the running protection value is normally detected, if yes, then transfer of data to 111 is accepted control command and adjusted service data, if not, then return step 112, shut down; The sampling of step 107 service data, after service data sampled, enter step 104 detecting motor type, the motor type parameter of determining is delivered to step 105, from database, access corresponding motor power saving operational factor according to the motor type of surveying, after receiving step 104 detecting motor categorical data, according to the motor standard database data that presets, through logic analysis, computing, generate corresponding power-saving running parameter to step 106 from motion tracking, according to corresponding motor power saving operational factor that from database, accesses and the sampling of step 107 service data, judge its load factor, carry out logic analysis simultaneously and handle, operational factor is adjusted, and will adjust transfer of data to 111 and accept control command adjustment service data, so far enter the next cycle operation.
With reference to Fig. 5, step 120 is behind the initial electricity-saving state, enter next step 121, to whether stable operation is judged, if not, then be back to previous step rapid 120, if yes, then enter next step 122, feedback data and database data are compared computing, adjust power output to step 123, judge whether electric current rises, if not, it is rapid 122 then to be back to previous step, if yes, then enter next step 124, feedback data and database data are compared computing, and adjust power output, enter next step 125 simultaneously according to operation result, judge whether electric current descends, if not, then return step 122, carry out next periodic duty, if yes, then return step 124.
With reference to Fig. 2-4, described PWM generative circuit 14: carry data behind 7,2,3,4,5 pin of IC3 (SPWM output module) by 27,2,3,4,5 pin of microprocessor 13, form required SPWM waveform through data processing and export from 10,11,12,13,14,15 pin.
Described protective circuit 15: form by motor overheating protective circuit, overvoltage/under-voltage protecting circuit, over current of motor protective circuit, motor and electricity-saving appliance short-circuit protection circuit, electricity-saving appliance overheating protection circuit, electricity-saving appliance current foldback circuit;
With reference to Fig. 2-2, motor overheating protective circuit: when motor temperature is higher than the overtemperature protection value, the temperature sensor 2 inner conductings of joining with external control end (X06), the 2 pin high level of IC032 are dragged down by RA02 become low level, 3 pin～4 pin conductings after the inner opto-electronic conversion of IC032, sweep signal on 3 pin is sent into microprocessor 13 from the output of 4 pin through R015, microprocessor 13 is judged motor overheating after detecting the sweep signal of 15 pin, provide the stoppage protection instruction, and motor overheating is shut down data deliver to the display demonstration;
With reference to Fig. 3-3, over current of motor protective circuit: Hall element IP283, the current sampling signal of IP280 output, current sampling signal through L300 filtering and the output of Hall element 3 pin, be superimposed through the filtered signal of L301, adjust error through RW300 again, deliver to microprocessor 25 pin inside by R025 and carry out the A/D conversion, current sampling data warp that obtains and the over current of motor protection value that microprocessor 13 control programs are preset are analyzed comparison, if when being higher than over current of motor protection value, microprocessor 13 provides the stoppage protection signal, and send display 19 to show fault data; Current sampling data send the normal current data to show to display 19 when normal value, after the over current of motor protection value that data and microprocessor 13 control programs are preset is analyzed relatively simultaneously, makes corresponding processing.
With reference to Fig. 3-3, motor, road protection that electricity-saving appliance short-circuit protection circuit: W is short out: when the IGBT normally, its C electrode drop is to 3V and RA229, DWA220, DA221, DA220, make the voltage of 9 pin of IC220 be lower than magnitude of voltage after supply power voltage deducts 6.5V after the stack of voltage on the RA227, IGBT current surge when short-circuit conditions occurring, its C pole tension rises to more than the 3V, cause the voltage of 9 pin of IC220 to be higher than magnitude of voltage after supply power voltage deducts 6.5V, the action of IC220 internal circuit makes 8 pin become low level by high level, the 2 pin level of ICC200 are dragged down, 3 pin of ICC220 and 4 pin conductings, 10 pin of microprocessor 13 are by R010 ground connection, after microprocessor 13 receives the short-circuit protection signal that the IGBT short-circuit protection partly sends into, provide corresponding protection instruction; Send short circuit stoppage protection data to display 19 to show simultaneously; V road and U road protection process are same as described above; The input of 9 pin of V road loop RA219, DWA210, DA211, DA210, RA217, IC210, the output of 8 pin, the 2 pin input of ICC210, the output of 4 pin is through R010, to 10 pin of microprocessor 13; After the input of 9 pin of W road loop RA209, DWA200, DA201, DA200, RA207, IC200 is handled, export to 8 pin.The input of 2 pin of ICC200, the output of 4 pin is through R010, to (10) pin of microprocessor 13.
With reference to Fig. 2-2; electricity-saving appliance overheating protection circuit: the inner conducting of temperature sensor when certain reason (not working as radiator fan) causes that radiator temperature is higher than the overtemperature protection value; the 2 pin high level of IC039 are dragged down by RA09 become low level; 3 pin～4 pin conductings after the inner opto-electronic conversion of IC039; sweep signal on 3 pin from 4 pin output through D039, R012, send into 12 pin of microprocessor 13; after microprocessor 13 detects the sweep signal of 12 pin; judgment device is overheated, provides corresponding protection instruction.Send overtemperature protection data to display 19 to show simultaneously;
With reference to Fig. 3-3, electricity-saving appliance overcurrent protection: the current sampling signal of Hall element output, current sampling signal through L300 filtering and the output of Hall element 3 pin, be superimposed through the filtered signal of L301, adjust error through RW300 again, deliver to (25) pin inside of microprocessor 13 by R025 and carry out the AD conversion, current sampling data warp that obtains and the electricity-saving appliance overcurrent protection value that microprocessor 13 control programs are preset are analyzed comparison, if when being higher than electricity-saving appliance overcurrent protection value, microprocessor 13 provides the stoppage protection signal, and send display 19 to show fault data; Current sampling data send the normal current data to show to display 19 when normal value, after the over current of motor protection value that data and microprocessor 13 control programs are preset is analyzed relatively simultaneously, makes corresponding processing.
With reference to Fig. 3-1,3-2, described power sense circuit 16: by rectifier diode D405, filtering capacitor C409, C410,26 pin of resistor R 292, R293, R294, R295, R026, microprocessor 13 carry out A/D converter and constitute; Current signal is by the D405 rectification, C409, C409 filtering, and R292, R293, R294, the sampling of R295 dividing potential drop are after R026 carries out A/D to 26 pin of microprocessor changes.
Described function expansion port circuit 17: by external start-up control circuit, external shutdown control circuit, external urgency stop control circuit, external standby mouthful 1., external standby mouthful 2., external standby mouthful 3., external standby mouthful 4., external standby mouthful 5. form:
With reference to Fig. 2-2, external start-up control circuit: IP030 (X0) and COM are connected, IC038 (2 pin) high level drags down by RA08 and becomes low level, 3 pin～4 pin conductings after the inner opto-electronic conversion of IC038, sweep signal on 3 pin is sent into 11 pin of processor 13 from 4 pin output through D038, R011, and microprocessor 13 is exported log-on data after detecting the sweep signal of 11 pin;
With reference to Fig. 2-2, external shutdown control circuit: IP030 (X1) and COM are connected, the 2 pin high level of IC036 drag down by RA06 and become low level, 3 pin～4 pin conductings after the inner opto-electronic conversion of IC036, sweep signal on 3 pin is sent into 6 pin of processor 13 from 4 pin output through D036, R006, and microprocessor 13 is shut down after detecting the sweep signal of 6 pin;
With reference to Fig. 2-2; external urgency is stopped control circuit: IP030 (X07) and COM are connected; the 2 pin high level of IC030 drag down by RA00 and become low level; 3 pin～4 pin conductings after the inner opto-electronic conversion of IC030; 10 pin of microprocessor 13 are by the 4 pin ground connection of R010, IC030; microprocessor 13 is carried out stop command, shuts down, and send and shuts down data to display 19 demonstrations.
With reference to Fig. 2-2, external expansion is standby mouthful 1.: the 2 pin input of IP030 (X02), RA07, IC037, and the output of 4 pin, through D037, R015 is to 15 pin of microprocessor 13.
With reference to Fig. 2-2, external expansion is standby mouthful 2.: the 2 pin input of IP030 (X03), RA05, IC035, and the output of 4 pin, through D035, R016 is to 16 pin of microprocessor 13.
With reference to Fig. 2-2, external expansion is standby mouthful 3.: 2 pin of IP030 (X04), RA04, IC034 are imported the output of 4 pin, and through D034, R016 is to 16 pin of microprocessor 13.
With reference to Fig. 2-2, external expansion is standby mouthful 4.: 2 pin of IP030 (X05), RA03, IC033 are imported the output of 4 pin, and through D033, R006 is to 6 pin of microprocessor 13.
With reference to Fig. 2-2, external expansion is standby mouthful 5.: 2 pin of IP030 (X08), RA01, IC031 are imported the output of 4 pin, and through D031, R011 is to 11 pin of microprocessor 13.
Described parameter is provided with controller 18: comprise control panel; described guidance panel is connected with microprocessor, display; its function is setting loadtype, rated voltage, rated current, running frequency, the acceleration and deceleration time, turns to control to protect parameter and fault inquiry etc.; and as required, to microprocessor and display output control command.
Described display 19: be made of the LED/VFD display module, and be connected with microprocessor 13 and guidance panel, when receiving microprocessor and guidance panel when providing idsplay order, display shows corresponding information according to instruction.
Claims (1)
1. motor intelligent power-saving protector, it is characterized in that, it comprises that main power circuit, switching power circuit, power driving circuit, microprocessor, PWM generative circuit, protective circuit, power sense circuit, function expansion mouth, parameter are provided with controller, display, the output of described main power circuit is connected with the input of power driving circuit and Switching Power Supply respectively, and the output of switching power circuit is connected with the input of power driving circuit, microprocessor, PWM generative circuit, protective circuit, power sense circuit, display respectively; The input of power driving circuit is connected with the input of PWM generative circuit, microprocessor and switching power circuit respectively, and output is connected with the input of protective circuit; The input of microprocessor is connected with the output that power driving circuit, protective circuit, power sense circuit, parameter are provided with controller, switching power circuit respectively, and output is connected with the input of PWM generative circuit and display respectively; The input of described function expansion mouth is connected with the output of switching power circuit, and output is connected with the input of described microprocessor;
Store motor operation and economize on electricity parameter and standard database in the described microprocessor, during operation, microprocessor is at first surveyed the type of load motor, the corresponding data of the respective type motor of the data that feed back and standard database is analyzed comparison, automatically transfer the operation and the economize on electricity supplemental characteristic of respective type motor, come initial launch by the type motor power saving supplemental characteristic; If database does not have the type of the load motor of surveying, described microprocessor automatically from standard database selector should the operational factor of motor and the economize on electricity parameter, to reach coupling; When the parameter of parameter that is provided with and detection feeds back to microprocessor, microprocessor will carry out analyzing and processing in real time, provide corresponding instruction, and input display shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100350931A CN100409563C (en) | 2007-06-11 | 2007-06-11 | Motor intelligent power-saving protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100350931A CN100409563C (en) | 2007-06-11 | 2007-06-11 | Motor intelligent power-saving protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101060304A CN101060304A (en) | 2007-10-24 |
| CN100409563C true CN100409563C (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100350931A Expired - Fee Related CN100409563C (en) | 2007-06-11 | 2007-06-11 | Motor intelligent power-saving protector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648562A (en) * | 2009-12-04 | 2012-08-22 | 恩德莱斯和豪瑟尔过程解决方案股份公司 | Method for setting parameters of a field device power-supply module |
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| CN101789629B (en) * | 2010-01-08 | 2012-12-19 | 江苏大学 | Electricity-saving space evaluating system and method |
| CN102638177B (en) * | 2012-04-23 | 2014-05-21 | 华北电力大学 | Two-way four-quadrant frequency converter |
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| CN104076702A (en) * | 2014-06-26 | 2014-10-01 | 天津市松正电动汽车技术股份有限公司 | Motor parameter self-matching method |
| CN105515480A (en) * | 2016-01-25 | 2016-04-20 | 广东美的暖通设备有限公司 | Motor control method, control device and air conditioner |
| CN106026027A (en) * | 2016-08-11 | 2016-10-12 | 绿创（苏州）电子有限公司 | Asynchronous motor controller protection circuit based on three-phase low-voltage large current |
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| CN107329405A (en) * | 2017-08-09 | 2017-11-07 | 浙江伯飞节能科技有限公司 | A kind of Intelligent power saving system and its control method based on Internet of Things |
| CN108345230A (en) * | 2018-02-05 | 2018-07-31 | 合肥中科离子医学技术装备有限公司 | A kind of draw-out area power control management system of medical superconducting cyclotron |
| CN109665470B (en) * | 2018-12-29 | 2020-11-03 | 徐州海伦哲特种车辆有限公司 | Energy-saving control system and control method for electric aerial work vehicle |
| CN109660158B (en) * | 2019-01-29 | 2020-12-22 | 深圳和而泰小家电智能科技有限公司 | Motor constant speed control circuit and method |
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| US4967133A (en) * | 1986-12-26 | 1990-10-30 | Matsushita Electric Industrial Co., Ltd. | Motor control apparatus |
| CN2338900Y (en) * | 1998-09-16 | 1999-09-15 | 王生桂 | Multi-functional energy-saving and protection device for electric motor |
| CN2472386Y (en) * | 1999-10-19 | 2002-01-16 | 邹晨光 | Energy saving motor protector |
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| US4461986A (en) * | 1983-04-20 | 1984-07-24 | Westinghouse Electric Corp. | Motor control apparatus with phase related detector |
| US4967133A (en) * | 1986-12-26 | 1990-10-30 | Matsushita Electric Industrial Co., Ltd. | Motor control apparatus |
| CN2338900Y (en) * | 1998-09-16 | 1999-09-15 | 王生桂 | Multi-functional energy-saving and protection device for electric motor |
| CN2472386Y (en) * | 1999-10-19 | 2002-01-16 | 邹晨光 | Energy saving motor protector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648562A (en) * | 2009-12-04 | 2012-08-22 | 恩德莱斯和豪瑟尔过程解决方案股份公司 | Method for setting parameters of a field device power-supply module |
| CN102648562B (en) * | 2009-12-04 | 2015-02-25 | 恩德莱斯和豪瑟尔过程解决方案股份公司 | Method for setting parameters of a field device power-supply module |
| US9906050B2 (en) | 2009-12-04 | 2018-02-27 | Endress + Hauser Process Solutions Ag | Method for setting parameters of a field device electrical current supply module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101060304A (en) | 2007-10-24 |
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