CN201667636U - Intelligent electric actuator control unit - Google Patents
Intelligent electric actuator control unit Download PDFInfo
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- CN201667636U CN201667636U CN2009202467304U CN200920246730U CN201667636U CN 201667636 U CN201667636 U CN 201667636U CN 2009202467304 U CN2009202467304 U CN 2009202467304U CN 200920246730 U CN200920246730 U CN 200920246730U CN 201667636 U CN201667636 U CN 201667636U
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Abstract
The utility model discloses an intelligent electric actuator control unit. A master control module (11) is connected with an I/O (Input/Output) interface and a slave control module (12); the I/O interface and the input end of the slave control module (12) are connected with a position detection module (18), and a position signal is uploaded to the master control module (11); the master control module (11) is also respectively connected with a monitoring system (16) and a debug terminal (17); the master control module (11) is also connected with a power control module (13), and then an actuator triple-phase asynchronous motor is driven to actuate; the I/O interface and the slave control module (12) are connected with a liquid crystal screen and an LED (Light-Emitting Diode) signal indicator lamp (14) to display various running states and fault information of an actuator. The utility model can well meet the requirements of a fieldbus, an industrial ethernet and the like on a higher emerging control network technology demand on the performance of an intelligent instrument and has obvious economic benefits and social benefits.
Description
Technical field
The utility model relates to a kind of intelligent electric actuating mechanism control unit, particularly a kind of intelligent electric actuating mechanism control unit of developing on embedded-type ARM 9 industrial control mainboard platforms.
Background technology
Electric operator is the important component part of industrial production automation regulating system, with the electric energy is power, accept the standard signal (analog quantity or digital quantity) of adjuster, automatically change performance variable (valve by this being become corresponding mechanical displacement (angle stroke, Direct Travel or many revolutions), adjuster valve, air door, butterfly valve, baffle opening etc.), to reach the purpose that controlled variable (temperature, pressure, flow, liquid level etc.) is automatically adjusted, production process is carried out according to predetermined set and requirement.
Conventional electric actuator (as DKJ type part-turn electric actuator) adopts mechanical control device, exists that control device falls behind, mechanical transmission mechanism is many, problems such as complex structure, positioning accuracy are low, poor reliability.Along with the application of technology such as computer network, fieldbus in industrial process, this actuator can not satisfy industrial requirement far away.
After the nineties, along with developing rapidly of microelectronics, computer, communication network technology and electromechanical integration technology, intelligent electric actuating mechanism has appearred in the world.It is a kind of novel intelligent terminal executive component that has microprocessor.Central processing unit CPU (Central Processing Unit, abbreviation microprocessor (Microprocessor)) embedding, strengthen the complex calculation and the information storage capability of electric operator, thereby improved the control precision and the trouble diagnosibility of electric operator greatly.
Intelligent electric actuating mechanism generally is made up of the motor that control unit and actuator promptly drive valve event.Control unit not only will be gathered actuator has related parameter and state information and upper strata control system to carry out the parameter information transmission, and will accept the instruction of upper strata control system, the start-stop of control executing mechanism motor, rotates and reverse.Because the kind of microprocessor is a lot, just has 4,8,16,32 four kinds according to byte length.As the TMP47 of Toshiba company * * * series belongs to 4 single-chip microcomputers; The part A VR single-chip microcomputer of 8031/8051/8751 and atmel corp of Intel Company belongs to 8 single-chip microcomputers; The MSP430 series of TI company belongs to 16 single-chip microcomputers; The ARM9 processor of ARM company belongs to 32 single-chip microcomputers.At present, 32 single-chip microcomputers are top products of single-chip microcomputer, have the high arithmetic speed of level.Existing intelligent electric actuating mechanism control unit yet there are no 32 single-chip microcomputers of employing.As, what nineteen nineties 12 disclosed the employing of patent of invention (CN 1047746A) intelligent electric actuating mechanism is 8 single-chip microcomputers 8031 of Intel Company; April in 2000 Granted publication on the 5th a kind of intelligent electric activator of utility model patent (CN 2372709Y) adopts is 8 single-chip microcomputer PIC16C56; In December, 2007 Granted publication the intelligence controlling device of a kind of electric operator of utility model patent (CN200997054Y) adopts is 16 single-chip microcomputer MSP430F147; 8 single-chip microcomputers " model of above-mentioned embedded microprocessor is ATmega64-16AT or ATmega128 " have been adopted in utility model patent (CN201177763Y) the novel intelligent electric operator of in March, 2008 application.
Summary of the invention
The purpose of the present utility model is to overcome the deficiencies in the prior art, invents the higher intelligent electric actuating mechanism control unit of a kind of Performance And Reliability.
For realizing the present utility model purpose, the technical scheme of taking is such:
A kind of intelligent electric actuating mechanism controller comprises main control module 11, I/O interface and auxilliary control module 12, power control module 13, it is characterized in that:
Described main control module 11 links to each other with I/O interface and auxilliary control module 12, and the input of described I/O interface and auxilliary control module 12 links to each other with position detecting module 18, and position signalling is uploaded to main control module 11;
Described main control module 11 also links to each other with supervisory control system 16, debug terminal 17 respectively;
Described main control module 11 also links to each other with power control module 13, and then drives 15 actions of described actuator threephase asynchronous machine,
Described I/O interface and auxilliary control module 12 link to each other with liquid crystal display screen and LED signal lamp 14, show various running statuses of actuator and fault message.
The CPU of IO interface and auxilliary control module adopts 16 single-chip microcomputer MSP430 series.Realize under the situation of operate as normal power supply dead electricity switching to the aiding CPU supply power mode by the electric power management circuit of IO interface and auxilliary control inside modules, and provide charging circuit, lithium battery to IO interface and auxilliary control inside modules under the situation that the operate as normal power supply is arranged charges, and charged state signal and charging failure signal all will send to main control module.
Adopt contactless Hall element to realize actuator's position probing, terminal position exists among the power down RAM, real time position also constantly writes among the power down RAM, does not lose the position when guaranteeing actuator's power down, and this moment, hand-rail type still can carry out the detection and the demonstration of valve position on the spot by the reserve lithium battery power supply.
The utility model advantage is:
1) adopt the structure of three circuit boards of three modules, functional localization is clear, compact conformation, be convenient to install and debugging;
2) main control module CPU adopts 32 single-chip microcomputers, has greatly improved the performance of actuator, can satisfy the requirement to the higher emerging Control Network technology of intelligence instrument performance requirement such as fieldbus, Industrial Ethernet well;
3) traffic direction of three phase electric machine is to realize by the phase sequence that changes three phase electric machine usually, specific implementation is to adopt two A.C. contactors or 5 silicon controlled main rectifiers to realize, if adopt A.C. contactor control motor, the frequent make and break of contactor meeting in actuator's course of work, produce big electric spark between the contact of contactor, influence its useful life, if use controllable silicon to realize the phase sequence adjustment fully, control logic is complicated.The utility model adopts two three-phase ac contactors, and the suitable piezo-resistance of parallel connection has effectively reduced arcing on contacts of contactor, has improved the useful life of A.C. contactor.In the line because A.C. contactor frequently make and break and generation burst pulse realize the fine tuning of valve position with three controllable silicons, A.C. contactor is mainly used to realize the motor commutation function in addition.On the basis of software interlocking, increase fail safe and the practicality that mechanical interlocked module has improved system greatly;
4) MSP430 series is 16, has mixed type single-chip microcomputer reduced instruction set computer, super low-power consumption, and IO interface and auxilliary control module adopt it as CPU, have effectively improved the performance of this module;
5) actuator's position probing adopts contactless Hall element technology, has improved certainty of measurement, has prolonged useful life;
6) by detecting in real time motor 3 phase currents, realized the electronic measurements of actuator stem force square, and the perfect protective value of motor.
Description of drawings
Fig. 1 is an intelligent electric actuating mechanism control unit structured flowchart;
Fig. 2 is the power control module theory diagram;
Fig. 3 is IO interface and auxilliary control module principle block diagram;
Fig. 4 is the magnet ring figure that fills 3 pairs of magnetic poles;
The output pulse diagram of A, two hall devices of B when Fig. 5 rotates for motor.
Embodiment
According to Figure of description, in conjunction with the preferred embodiments the technical solution of the utility model is further described below.
As shown in Figure 1, intelligent electric actuating mechanism control unit 1 mainly is made up of main control module 11, IO interface and auxilliary control module 12, power control module 13.
Described main control module 11 links to each other with I/O interface and auxilliary control module 12, and the input of described I/O interface and auxilliary control module 12 links to each other with position detecting module 18, and position signalling is uploaded to main control module 11;
Described main control module 11 also links to each other with supervisory control system 16, debug terminal 17 respectively;
The output of described I/O interface and auxilliary control module 12 links to each other with actuator threephase asynchronous machine 15, drives described actuator threephase asynchronous machine 15 and moves.
Described main control module 11 also links to each other with supervisory control system 16, debug terminal 17 respectively;
Described main control module 11 also links to each other with power control module 13, and then drives 15 actions of described actuator threephase asynchronous machine.
Described I/O interface and auxilliary control module 12 link to each other with liquid crystal display screen and LCD signal lamp 14, show and carry out various operations and fault message.
As shown in Figure 2, power control module 13 is made up of auxiliary relay control circuit 311, first auxiliary relay 312, second auxiliary relay 313, first A.C. contactor 316, second A.C. contactor 317, hot protective relay 318, SCR control circuit 321, first controllable silicon 322, second controllable silicon 323, the 3rd controllable silicon 324, threephase current transformer (current transformer 325, current transformer 326, current transformer 327).The input of described auxiliary relay control circuit 311 links to each other with the output of described I/O interface and auxilliary control module 12; the two-way output of auxiliary relay control circuit 311 is connected respectively to first auxiliary relay 312 and second auxiliary relay, 313 inputs; the output of first auxiliary relay 312 links to each other with the input of first A.C. contactor 316; the output of second auxiliary relay 313 links to each other with the input of second A.C. contactor 317; first A.C. contactor 316 all links to each other with the input of described hot protective relay 318 with the output of second A.C. contactor 317; the output of described hot protective relay 318 respectively with first controllable silicon 322; second controllable silicon 323; the 3rd controllable silicon 324 input, the controllable silicon output drive motors that links to each other with asynchronous machine.
The input of described SCR control circuit 321 links to each other with the output of described I/O interface and auxilliary control module 12, the output of SCR control circuit 321 is connected respectively to the gate pole control end of first controllable silicon 322, second controllable silicon 323, the 3rd controllable silicon 324, and threephase current transformer 325,326,327 is serially connected in respectively on the major loop of first controllable silicon 322, second controllable silicon 323, the 3rd controllable silicon 324.
Between A.C. contactor 316 and A.C. contactor 317, install mechanical interlocking module additional.Piezo-resistance in parallel on A.C. contactor 316 and A.C. contactor 317 contacts.A.C. contactor 316 and 317 is selected the A.C. contactor LC1-D18Q7C of Schneider company for use in this example; three-phase hot protective relay 318 is used for the hot protective relay LRD-08C that Schneider company is selected in overcurrent protection for use; controllable silicon 322,323,324 is selected the BTA40-800 of ST company for use, and current transformer 325,326,327 is selected the TA20 (FL)-200 of Dechang credit China for use.When actuator starts, trigger earlier and connect opening or closing of A.C. contactor adjustment connection valve, trigger controllable silicon then, the fine tuning of realization valve position; When actuator stops, disconnecting controllable silicon earlier, time-delay disconnects A.C. contactor a little while again, and the electric current that flows through A.C. contactor this moment is zero, thereby prevents that the arcing phenomenon from appearring in A.C. contactor.Current transformer 325,326,327 is used for the motor three-phase current detection.
As shown in Figure 3, I/O interface and auxilliary control module 12 mainly are made up of aiding CPU 211, charged lithium cells 212, electric power management circuit 213, LCD MODULE 214, status display circuit 215, motor speed pulse and direction detection module 216, DI detection module 217, AI conditioning module 218, DO output module 219, D/A conversion module 220 and AO output module 221.Aiding CPU is selected the MSP430F135 chip.Described electric power management circuit 213, LCD MODULE 214, status display circuit 215, motor speed pulse and direction detection module 216, DI detection module 217, AI conditioning module 218, DO output module 219, D/A conversion module 220 all link to each other with aiding CPU 211, described electric power management circuit 213 links to each other with charged lithium cells 212, and the output of described D/A conversion module 220 links to each other with the input of AO output module 221.
Electric power management circuit 213 is mainly finished in the switching that has under the power free situation aiding CPU 211 supply power modes, and charging circuit is provided, and lithium battery 212 is charged having under the situation of power supply.Under actuator's power-down conditions, when manual operation on the spot, by 212 pairs of aiding CPUs 211 of charged lithium cells and motor speed pulse and 216 power supplies of direction detection module, the real-time detection of completing place; When operate as normal, aiding CPU 211 detects valve location in real time, and by serial ports, gives main control module 11, gives aiding CPU 211 from state parameter, the output order of main control module 11 in addition, drives Liquid Crystal Module 214 by aiding CPU 211.Show state circuit 215 is made up of 4 LED lamps, represents standard-sized sheet, complete shut-down, control far away, four kinds of states on the spot respectively.The AI modulate circuit mainly is lower than 1 tunnel motor windings thermal resistance signal, 1 tunnel 4～20mA signal, 3 road CT signals, the conditioning of 1 road lithium battery temperature sensor signal for AD converter is acceptable ± voltage signal of 10V, and finish on-the-spot with local electrical isolation.
Be illustrated in figure 4 as 1 magnet ring that fills 3 pairs of magnetic poles, we are installed on this magnet ring on the motor shaft, design a testing circuit plate, and 2 hall devices are installed on the testing circuit plate, and circuit board layout is in the position over against magnet ring, apart from 1～2mm.Two hall devices are distributed on the circumference, and 30 ° at interval, when the motor rotation drove the magnet ring rotation, two hall device output pulse signal phase differences were 90 °, differentiated motor steering with this phase difference.The pulse number (from 0 to 1 hopping edge is effective) of hall device A output can draw the motor rotary speed in the unit of account time, can calculate the actuator position by the accumulative total to the pulse number of hall device A output.The hall device EW512 that hall device selects for use company of Japanese Asahi Chemical Industry to produce.
Fig. 5 is the output pulse (B behind the first A, 30 ° at interval two hall device installation sites of A, B in the direction of the clock) of A, two hall devices of B.
Claims (4)
1. an intelligent electric actuating mechanism controller comprises main control module (11), I/O interface and auxilliary control module (12), power control module (13), it is characterized in that:
Described main control module (11) links to each other with I/O interface and auxilliary control module (12), and the input of described I/O interface and auxilliary control module (12) links to each other with position detecting module (18), and position signalling is uploaded to main control module (11);
Described main control module (11) also links to each other with supervisory control system (16), debug terminal (17) respectively;
Described main control module (11) also links to each other with power control module (13), and then drives described actuator threephase asynchronous machine (15) action,
Described I/O interface and auxilliary control module (12) link to each other with liquid crystal display screen and LED signal lamp (14), show various running statuses of actuator and fault message.
2. intelligent electric actuating mechanism controller according to claim 1 is characterized in that:
Described I/O interface and auxilliary control module (12) comprise aiding CPU (211), charged lithium cells (212), electric power management circuit (213), LCD MODULE (214), status display circuit (215), motor speed pulse and direction detection module (216), DI detection module (217), AI conditioning module (218), DO output module (219), D/A conversion module (220) and AO output module (221), described electric power management circuit (213), LCD MODULE (214), status display circuit (215), motor speed pulse and direction detection module (216), DI detection module (217), AI conditioning module (218), DO output module (219), D/A conversion module (220) all links to each other with aiding CPU (211), described electric power management circuit (213) links to each other with charged lithium cells (212), and the output of described D/A conversion module (220) links to each other with the input of AO output module (221).
3. intelligent electric actuating mechanism controller according to claim 1 is characterized in that:
Described power control module (13) comprises auxiliary relay control circuit (311), first auxiliary relay (312), second auxiliary relay (313), first A.C. contactor (316), second A.C. contactor (317), hot protective relay (318), SCR control circuit (321), first controllable silicon (322), second controllable silicon (323), the 3rd controllable silicon (324), threephase current transformer (325,326,327);
The input of described auxiliary relay control circuit (311) links to each other with the output of described I/O interface and auxilliary control module (12), the two-way output of auxiliary relay control circuit (311) is connected respectively to first auxiliary relay (312) and second auxiliary relay (313) input, the output of first auxiliary relay (312) links to each other with the input of first A.C. contactor (316), the output of second auxiliary relay (313) links to each other with the input of second A.C. contactor (317), first A.C. contactor (316) all links to each other with the input of described hot protective relay (318) with the output of second A.C. contactor (317), the output of described hot protective relay (318) respectively with first controllable silicon (322), second controllable silicon (323), the input of the 3rd controllable silicon (324) links to each other;
The input of described SCR control circuit (321) links to each other with the output of described I/O interface and auxilliary control module (12), the output of SCR control circuit (321) is connected respectively to the gate pole control end of first controllable silicon (322), second controllable silicon (323), the 3rd controllable silicon (324), and threephase current transformer (325,326,327) is serially connected in respectively on the major loop of first controllable silicon (322), second controllable silicon (323), the 3rd controllable silicon (324).
4. according to claim 1 or 2 or 3 described intelligent electric actuating mechanism controllers, it is characterized in that: described main control module (11) adopts 32 Chip Microcomputer A RM9 series.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202467304U CN201667636U (en) | 2009-11-05 | 2009-11-05 | Intelligent electric actuator control unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009202467304U CN201667636U (en) | 2009-11-05 | 2009-11-05 | Intelligent electric actuator control unit |
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| CN201667636U true CN201667636U (en) | 2010-12-08 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533486A (en) * | 2013-09-24 | 2014-01-22 | 青岛歌尔声学科技有限公司 | External volume regulator and regulating method |
| CN106571618A (en) * | 2016-08-31 | 2017-04-19 | 鲁西工业装备有限公司 | High-sensitivity low-voltage motor automatic protection device and method |
| CN106762400A (en) * | 2016-12-24 | 2017-05-31 | 大连尚能科技发展有限公司 | Low pressure with WIFI functions becomes oar integrated manipulator |
| CN107765721A (en) * | 2017-11-30 | 2018-03-06 | 北京霹雳五号科技有限公司 | A kind of programmable electronic distribution board |
| CN108173461A (en) * | 2018-02-11 | 2018-06-15 | 重庆川仪自动化股份有限公司 | Executing agency's electric machine control system and method |
-
2009
- 2009-11-05 CN CN2009202467304U patent/CN201667636U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533486A (en) * | 2013-09-24 | 2014-01-22 | 青岛歌尔声学科技有限公司 | External volume regulator and regulating method |
| CN103533486B (en) * | 2013-09-24 | 2016-12-07 | 青岛歌尔声学科技有限公司 | A kind of external volume regulator and control method |
| CN106571618A (en) * | 2016-08-31 | 2017-04-19 | 鲁西工业装备有限公司 | High-sensitivity low-voltage motor automatic protection device and method |
| CN106762400A (en) * | 2016-12-24 | 2017-05-31 | 大连尚能科技发展有限公司 | Low pressure with WIFI functions becomes oar integrated manipulator |
| CN106762400B (en) * | 2016-12-24 | 2022-09-06 | 大连尚能科技发展有限公司 | Low-voltage variable-pitch integrated controller with WIFI function |
| CN107765721A (en) * | 2017-11-30 | 2018-03-06 | 北京霹雳五号科技有限公司 | A kind of programmable electronic distribution board |
| CN108173461A (en) * | 2018-02-11 | 2018-06-15 | 重庆川仪自动化股份有限公司 | Executing agency's electric machine control system and method |
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Granted publication date: 20101208 |