CN104730959A - Intelligent instrument and power electronic practical training device and control method thereof - Google Patents
Intelligent instrument and power electronic practical training device and control method thereof Download PDFInfo
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- CN104730959A CN104730959A CN201510125210.8A CN201510125210A CN104730959A CN 104730959 A CN104730959 A CN 104730959A CN 201510125210 A CN201510125210 A CN 201510125210A CN 104730959 A CN104730959 A CN 104730959A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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Abstract
The invention discloses an intelligent instrument and power electronic practical training device. The practical training device comprises an electrical system, controlled devices, a test instrument set, a central controller, a control system and an execution unit. Unit module circuits based on a mature technology and the controllable central controller are adopted for combining various circuits, test instruments and the controlled devices so as to meet the demands of different occasions. When the practical training device is used for practical training in teaching, an application program compiled in advance is called to achieve a real project case to perform the practical training in teaching. When the practical training device is used as a scientific research and development platform, the unit module circuits can be reprogrammed and recombined according to function requirements so as to meet demands. Students can apply a debugging method, intelligent instruments and a circuit system in practical work directly after receiving the practical training, and reality, high efficiency and flexibility are achieved.
Description
Technical field
The present invention relates to a kind of actual training device, being specifically related to a kind of based on producing actual intelligent instrument and power electronics actual training device and control method thereof.
Background technology
The intelligent instrument actual training device of the current overwhelming majority, power electronics actual training device are just teaching, real training, Skill Competition, Technique Authentication design, the knowledge learning of intelligent instrument actual training device or the main analog Automation of Manufacturing Process of power electronics actual training device or power electronic system principle designs, and practicality is not strong; Relevant knowledge is difficult to directly to apply in work after Students ' Learning real training.
Summary of the invention
In order to overcome the deficiency of existing intelligent instrument, power electronics actual training device, the invention provides a kind of can according to producing the actual and intelligent instrument of design and power electronics actual training device and control method thereof, adopt central controller by the functional programming combination on demand of modular circuit and controlled plant simultaneously reserved extend out interface, can increase-volume as required, improve the dirigibility of existing equipment use, practicality, cost-saving.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of intelligent instrument and power electronics actual training device, comprise electrical system, controlled plant, testing tool group, central controller, control system and performance element; Described central controller can be the Programmable Logic Controllers such as PLC, industrial computer or single-chip microcomputer, for commanding all parts, coordinate, organize and controlling, and to the distribution branch data of control system input receive, judge determine whether connect this distribution branch road; Described performance element is used for carrying out break-make control according to the instruction of central controller to distribution branch road, and the input end of this performance element is connected with the output terminal of central controller; Described performance element is output relay; Described controlled plant is for completing the whole operations required by enterprise's production application of reality, and the input end of controlled plant is connected with the output terminal of performance element; Described electrical system is used for providing power supply for testing tool group, central controller, control system and performance element and driving described controlled plant; The operation conditions of described testing tool group in detecting electric system and controlled plant also carries out display certificate on the operation bench of actual training device.Described control system can be touch-screen, keyboard, button, all kinds of industry control sensor, and described testing tool group is connected with electrical system and controlled plant respectively, and herein, testing tool group also can individualism, uses as independently measurement instrument.
In the present invention, described electrical system comprises power supply, the high-power single-phase solid-state relay output circuit of band protection, the high-power three-phase solid relay output circuit of band protection, the high-power single-phase thyristor voltage regulation output circuit of band protection, the high power three-phase thyristor voltage regulation output circuit of band protection, with the output circuit of direct current brushless servo motor driver, with the output circuit of AC brushless servo motor driver, with the output circuit of vector frequency converter, with the output circuit of DC chopped-wave voltage-regulating device, be with single-phase thyristor dc pressure regulator output circuit, with the output circuit of three-phase thyristor DC voltage regulator, with the output circuit of single transformer, with the output circuit of three-phase transformer, with the output circuit of three-phase rectifier transformer, the control end of foregoing circuit is connected with the output terminal of performance element.
In the present invention, described controlled plant comprises baking oven casing and heating wire and thermal resistance, electric furnace body and Elema and thermopair, electric furnace body and Si-Mo rod and thermopair, the three-phase regulator of band reducing motor, AC asynchronous motor, direct current motor, AC servomotor, permanent-magnet DC brushless servomotor, electromagnetic clutch, electric metering pump, electrically operated valve, electromagnetic gas valve, and the control end of the said equipment is connected with the output terminal of performance element.
In the present invention, described testing tool group comprises four-track oscilloscope, intelligent temperature control table, electric current and voltage and power test instrument, phase-sequence meter, tachometer gage, megohmmeter, electric bridge, capacitor and inductor table.
In the present invention, the control circuit controlling electrical system and controlled plant running status is also provided with in actual training device, described control circuit comprises temperature-control circuit, the humidity control circuit of belt sensor, control of valve position circuit with stopper, the pH value control circuit of belt sensor, the constant voltage control circuit of transducer with voltage, the constant current controlling circuit of belt current transducer, constant-power control circuit, analog voltage undulated control circuit, the motor rotation-speed control circuit of band power converter, and the control end of foregoing circuit is connected with the output terminal of performance element.
In the present invention, described control circuit each circuit comprising modules circuit and be arranged in actual training device main body.
In the present invention, described central controller is reserved with and extends out interface, external unit or outside controlling equipment extend out interface connection central controller by this, and the situation of manipulation or display electrical system, controlled plant, testing tool group or performance element, when using as actual training device, extend out interface more students can be made simultaneously to connect by this, improve efficiency of teaching.When using as scientific research and development platform, extend out interface can use more unit module circuit by this, improve the practicality of device.
A control method for intelligent instrument and power electronics actual training device, the method comprises the following steps: A, write several subroutines by the requirement of the enterprise's production application circuit according to reality; B, each subroutine is stored in central controller, central controller receives the distribution branch data receiving control system input, judges, central controller is according to the corresponding subroutine of data call and modular circuit is combined into corresponding application circuit by performance element.
The invention has the beneficial effects as follows: the present invention adopts the unit module circuit of technology maturation and controlled central controller to combine each circuit, testing tool and controlled plant, with the demand of satisfied different occasion.When this actual training device is as practice teaching, call the application program write in advance to realize real Engineering Projects and carry out practice teaching, when this actual training device is as scientific research and development platform, can by functional requirement reprogramming assembled unit modular circuit, to satisfy the demand.Can directly adjustment method, intelligent instrument, Circuits System be applied in real work after Students ' Learning real training, there is authenticity, high efficiency; The application of the ultimate principle of Fundamental Theory of Electrical Engineering class truly can be presented to student simultaneously, there is intuitive, the interest of Students ' Learning can be improved; Owing to adopting central controller (as PLC etc.), this actual training device cost is low, can complete the industrial process stream of various real or simulation and equipment debugging, processing parameter debugging, have dirigibility, practicality, can make the platform of scientific research and development.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is further described:
Fig. 1 is the structural representation of the present embodiment.
Embodiment
The present invention can form following practice teaching by calling the application program write in advance.
1, intelligent instrument and power electronics practice teaching
(1), the control circuit of High Accuracy Constant Temperature baking oven, in advance by programming to central controller 4, by performance element 7(output relay) testing tool group 3(intelligent temperature control table), electrical system 1 and control circuit 6(comprise: the high-power single-phase solid-state relay output circuit of A.C. contactor, band protection) with the heating wire of controlled plant 2(baking oven), feedback element (thermal resistance PT100) couples together the temperature control circuit forming and commonly use; When practice teaching, as long as input corresponding numbering at control system 5 or press corresponding button, namely actual training device connects and composes the control circuit of High Accuracy Constant Temperature baking oven by internal circuit, student is by the optimum configurations to intelligent temperature control table, debugging, reach technological requirement, thus complete real training (in real training, student learns the use of intelligent temperature control table, the use of thermal resistance PT100, the use of single-phase solid relay, the principle that switch mode power controls, the adjustment method of High Accuracy Constant Temperature baking oven).
(2), the temperature-control circuit of invariable power temp .-elevating electric furnace, in advance by programming to central controller 4, by performance element 7(output relay) testing tool group 3(intelligent temperature control table), electrical system 1 and control circuit 6(comprise: the high power three-phase thyristor voltage regulation output circuit of A.C. contactor, band protection) with controlled plant 2(Elema electric furnace), feedback element (S Graduation Number thermopair) couples together the Elema Control of Electric Oven Temperature circuit forming and commonly use; When practice teaching, as long as at control system 5(touch-screen) input corresponding numbering or press corresponding button, namely actual training device connects and composes the temperature-control circuit of invariable power temp .-elevating electric furnace by internal circuit, student is by the optimum configurations to intelligent temperature control table, debugging, reach technological requirement, thus complete real training (in real training, student learns the use of intelligent temperature control table, the use of S Graduation Number thermopair, the use of three-phase thyristor pressure regulator, the method for power limitation control, the adjustment method of Elema electric furnace).
2, Fundamental Theory of Electrical Engineering practice teaching
(1), the star connection of the resistance that resistance is identical and delta connection, in advance by programming to central controller 4, by performance element 7(output relay) electrical system 1(A.C. contactor) with controlled plant 2(heating wire resistance) couple together and form star connection or delta connection circuit; When practice teaching, as long as at control system 5(touch-screen) input corresponding numbering or press corresponding button, namely actual training device connects and composes star connection and delta connection circuit by internal circuit, student is by the voltage to three-phase star connection, delta connection, current measurement, experience the relation of line voltage and phase voltage, line current and phase current intuitively, thus better understand the difference connection of three-phase star connection and delta connection.
(2), the voltage effective value of the principle of three phase generator and alternating current, peak value, cycle, frequency, phase differential, in advance by programming to central controller 4, by performance element 7(output relay) the output circuit of electrical system 1(A.C. contactor, band vector frequency converter) and control circuit 6(motor rotation-speed control circuit) and controlled plant 2(AC motor, shaft coupling, generator) couple together formation electricity generation system; When practice teaching, as long as input corresponding numbering at touch-screen or press corresponding button, namely actual training device connects and composes three-phase generator system by internal circuit, student measures the observation of the voltage effective value of three-phase alternating current, peak value, cycle, frequency, phase differential by four-track oscilloscope, experience voltage effective value and peak value, cycle and the relation of frequency, the waveform of phase differential intuitively, thus better understand the concept of the voltage effective value of three-phase alternating current, peak value, cycle, frequency, phase differential; The principle allowing students generate electricity by the power of the size of the output frequency of operation frequency converter, the excitation of adjustment generator, the physical quantity affecting generator output voltage and electric current.
3, Scientific Research Platform
(1) three phase supply voltage fluctuation environment, is simulated, in advance by programming to central controller 4, by performance element 7(output relay) analog voltage undulated control circuit (being made up of smart valve level controller, overvoltage/undervoltage circuit), electrical system 1(A.C. contactor, voltage transmitter) be with the three-phase regulator of reducing motor with controlled plant 2() couple together the voltage-regulating system formed; When as Scientific Research Platform, as long as input corresponding numbering or press corresponding button in control system 5, namely device connects and composes the environment of simulation three phase supply voltage fluctuation by internal circuit, technician can utilize adaptability, the reliability of the environmental testing equipment under test of simulation three phase supply voltage fluctuation.
(2), Product Process exploitation, in advance by programming to central controller 4, by performance element 7(output relay) testing tool group 3(curve temperature controller), electrical system 1 A.C. contactor, single transformer, single-phase thyristor voltage regulator, current transducer) with controlled plant 2(silicon molybdenum rod furnace), feedback element (B Graduation Number thermopair) couples together the silicon molybdenum rod furnace temperature control circuit system forming and commonly use; When as Scientific Research Platform, as long as input corresponding numbering or press corresponding button in control system 5, namely device connects and composes high temperature process equipment by internal circuit, technician can utilize curve temperature controller to work out Technology for Heating Processing flow process and heat-treat workpiece, and the thermographic data transferring process carries out analysis optimization.
The foregoing is only preferred embodiments of the present invention, as long as the technical scheme realizing the object of the invention with basic same approach all belongs within protection scope of the present invention.
Claims (8)
1. intelligent instrument and a power electronics actual training device, is characterized in that: comprise electrical system (1), controlled plant (2), testing tool group (3), central controller (4), control system (5) and performance element (7);
Described central controller (4), for commanding all parts, coordinate, organize and controlling, and receives the distribution branch data that control system (5) inputs, judges, determines whether connect this distribution branch road;
Described performance element (7) is for carrying out break-make control according to the instruction of central controller (4) to distribution branch road, and the input end of this performance element (7) is connected with the output terminal of central controller (4);
Described controlled plant (2) is for completing the whole operations required by enterprise's production application of reality, and the input end of controlled plant (2) is connected with the output terminal of performance element (7);
Described electrical system (1) is for providing power supply for testing tool group (3), central controller (4), control system (5) and performance element (7) and driving described controlled plant (2);
The operation conditions of described testing tool group (3) in detecting electric system (1) and controlled plant (2) also carries out display certificate on the operation bench of actual training device.
2. a kind of intelligent instrument according to claim 1 and power electronics actual training device, it is characterized in that: described electrical system (1) comprises power supply, the high-power single-phase solid-state relay output circuit of band protection, the high-power three-phase solid relay output circuit of band protection, the high-power single-phase thyristor voltage regulation output circuit of band protection, the high power three-phase thyristor voltage regulation output circuit of band protection, with the output circuit of direct current brushless servo motor driver, with the output circuit of AC brushless servo motor driver, with the output circuit of vector frequency converter, with the output circuit of DC chopped-wave voltage-regulating device, be with single-phase thyristor dc pressure regulator output circuit, with the output circuit of three-phase thyristor DC voltage regulator, with the output circuit of single transformer, with the output circuit of three-phase transformer, with the output circuit of three-phase rectifier transformer, the control end of foregoing circuit is connected with the output terminal of performance element (7).
3. a kind of intelligent instrument according to claim 1 and power electronics actual training device, it is characterized in that: described controlled plant (2) comprises baking oven casing and heating wire and thermal resistance, electric furnace body and Elema and thermopair, electric furnace body and Si-Mo rod and thermopair, the three-phase regulator of band reducing motor, AC asynchronous motor, direct current motor, AC servomotor, permanent-magnet DC brushless servomotor, electromagnetic clutch, electric metering pump, electrically operated valve, electromagnetic gas valve, and the control end of the said equipment is connected with the output terminal of performance element (7).
4. a kind of intelligent instrument according to claim 1 and power electronics actual training device, is characterized in that: described testing tool group (3) comprises four-track oscilloscope, intelligent temperature control table, electric current and voltage and power test instrument, phase-sequence meter, tachometer gage, megohmmeter, electric bridge, capacitor and inductor table.
5. a kind of intelligent instrument according to claim 1 and power electronics actual training device, it is characterized in that: in actual training device, be also provided with the control circuit (6) controlling electrical system (1) and controlled plant (2) running status, described control circuit (6) comprises temperature-control circuit, the humidity control circuit of belt sensor, control of valve position circuit with stopper, the pH value control circuit of belt sensor, the constant voltage control circuit of transducer with voltage, the constant current controlling circuit of belt current transducer, with the constant-power control circuit of power converter, analog voltage undulated control circuit, motor rotation-speed control circuit, the control end of foregoing circuit is connected with the output terminal of performance element (7).
6. a kind of intelligent instrument according to claim 5 and power electronics actual training device, is characterized in that: each circuit comprising modules circuit of described control circuit (6) is also arranged in actual training device main body.
7. a kind of intelligent instrument according to claim 1 and power electronics actual training device, is characterized in that: described central controller (4) is reserved with and extends out interface (8).
8. a control method for intelligent instrument and power electronics actual training device, is characterized in that: the method comprises the following steps: A, write several subroutines by the requirement of the enterprise's production application circuit according to reality; B, individual subroutine is stored in central controller (4), central controller (4) receives receiving the distribution branch data that control system (5) inputs, judges, central controller (4) is according to the corresponding subroutine of data call and by performance element (7), modular circuit is combined into the application circuit of correspondence.
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| CN201510125210.8A CN104730959A (en) | 2015-03-20 | 2015-03-20 | Intelligent instrument and power electronic practical training device and control method thereof |
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| CN201510125210.8A CN104730959A (en) | 2015-03-20 | 2015-03-20 | Intelligent instrument and power electronic practical training device and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114550527A (en) * | 2022-01-10 | 2022-05-27 | 西安理工大学 | Design method of comprehensive practical training device based on industrial concept |
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| CN201072608Y (en) * | 2007-07-26 | 2008-06-11 | 浙江天煌科技实业有限公司 | Electric motor and automatic control experimental device |
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| CN114550527A (en) * | 2022-01-10 | 2022-05-27 | 西安理工大学 | Design method of comprehensive practical training device based on industrial concept |
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Application publication date: 20150624 |