CN201584090U - Experimental training device for variable-frequency speed regulation technology - Google Patents
Experimental training device for variable-frequency speed regulation technology Download PDFInfo
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- CN201584090U CN201584090U CN200920258028XU CN200920258028U CN201584090U CN 201584090 U CN201584090 U CN 201584090U CN 200920258028X U CN200920258028X U CN 200920258028XU CN 200920258028 U CN200920258028 U CN 200920258028U CN 201584090 U CN201584090 U CN 201584090U
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- frequency converter
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Abstract
The utility model discloses an experimental training device for variable-frequency speed regulation technology, which is provided with a cabinet, the cabinet is provided with a frequency converter and relevant electric components; the device is characterized in that: the cabinet is L-shaped, the vertical surface of the L-shaped cabinet is provided with an electric plate which is provided with a breaker, a protecting circuit, an overvoltage protecting circuit, a potentionmeter and a frequency converter; a lead is connected with the electric components, all control terminals of the frequency converter are distributed on the electric plate by an insertion port; and a control panel at the horizontal part of the L-shaped cabinet is provided with an AC contactor, a time relay, an intermediate relay and a thermal relay. Compared with the prior art, the device has compact structure, reasonable arrangement, and convenient operation and maintenance, realizes the integrated training on students about the application skills of the AC variable-frequency technology, and improves the professional technology quality of the students.
Description
Technical field
The utility model belongs to technical field of electricity, is specifically related to a kind of variable-frequency control technique experimental real-training apparatus.
Background technology
School is offering converter technique and utility theory class hour, frequency converter, alternating current generator and computing machine are only arranged, it is few to offer experimental project, at present the current experiments project is direct connection line on equipment such as frequency converter, realize the skill training of multiple AC variable-frequency speed regulation system circuits built, there is not complete experimental provision, the electric components scene is put scattered during experiment, circuit connects inconvenient, outward appearance is not directly perceived, and the Operation and Maintenance inconvenience can not realize the synthesization training in the alternating frequency conversion technique application expertise to the student.
The utility model content
For solving compact conformation, rationally distributed, convenient operating maintenance, realization is to the synthesization training of student in the alternating frequency conversion technique application expertise, improve the above-mentioned defective that student's professional technique quality prior art exists, the purpose of this utility model is the variable-frequency control technique experimental real-training apparatus device that provides a kind of.
For achieving the above object, the technical solution adopted in the utility model is: this variable-frequency control technique experimental real-training apparatus device, has cabinet, cabinet is provided with frequency converter and related electric components and parts, it is characterized in that: described cabinet is L-shaped, the vertical plane of described L shaped cabinet partly is provided with electric plate, electric plate is provided with isolating switch, current foldback circuit, overvoltage crowbar, potentiometer and frequency converter, lead connects described electric components, and all control terminals of described frequency converter are arranged on the electric plate by interface; The horizontal component control panel of described L shaped cabinet is provided with A.C. contactor, the time relay, auxiliary reclay, electrothermal relay.
Described electric plate is provided with the potentiometer that can connect to analog control mode.
One side of described control panel is hinged on the cabinet of planar section.
Described frequency converter adopts the all-round king SB60 of gloomy orchid.
Adopt the beneficial effect of technique scheme: the cabinet of this variable-frequency control technique experimental real-training apparatus is L-shaped; electric plate is located at the vertical plane part of L shaped cabinet; be provided with isolating switch and holding circuit is safe and reliable; all control terminals of frequency converter are connected on the plug hole; the student can design different external terminal control circuits easily, and has potentiometer to connect to be analog control mode.The control panel of the surface level of L shaped cabinet part is provided with A.C. contactor, the time relay, auxiliary reclay, electrothermal relay and places panel outer so that student's Direct observation structure and work phenomenon; easy-to-look-up trouble spot; and can form different circuit and holding circuit, installation specification is economical and practical.One side of control panel is hinged on the cabinet of planar section, but the circuit at upset control panel Direct observation control panel back connects situation, makes things convenient for the connection and the maintenance of circuit.This variable-frequency control technique experimental real-training apparatus device satisfies the student training platform, change present laboratory and only can offer the basic experiment project, can finish the integrated application project, abundant in content, reasonable in design convenient operating maintenance, strengthen the training of student's integrating skills level, improve the ability of student on new technology is used.Can carry out following real training operation: 1, the frequency converter basic parameter is provided with exercise 2, the highest operating frequency of frequency converter, starting frequency, stop frequency, upper limiting frequency, lower frequency limit is provided with exercise 3, the research 4 of automatic energy saving, U/F curve of output test experiments 5, the research 6 of compensated torque, simulation control, panel control multistage speed 7, outside terminal crawl control 8, the setting of converter parameter multistage speed is by outside terminal control operation 9, raising speed and reduction of speed are by outside terminal control operation 10, the research of multi-functional lead-out terminal function and avoidance frequency test 11, vector controlled and simple and easy PLC function 12, PC control and communications parameter set 13, process pid control function seven PC control and communications parameter set 14, frequency conversion-power frequency switchover operation 15, the application 16 of variable-frequency control technique on blower fan, frequency converter is in the liquid material APPLICATION IN TRANSMISSION.Operating position proves that this equipment helps cultivating student's design, installation, parameter testing and fault elimination ability.Replenish and to improve the existing breadboard function of variable-frequency control technique of my institute, this experimental real-training apparatus easy accessibility, be easy to safeguard, be provided with flexibly in convenient.Simultaneously, utilize microcontroller that fuzzy control technology, space vector control technology are studied in frequency conversion speed-adjusting system and used, innovation new technology, new method.Student's state-of-the-art technology improves the specialty technical teaching effect.
Description of drawings
Below in conjunction with accompanying drawing specific embodiment of the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the basic wiring diagram of frequency converter.
Fig. 3 is the electric plate arrangenent diagram of the vertical plane part of L shaped cabinet.
Fig. 4 is the horizontal component control panel arrangenent diagram of L shaped cabinet.
Embodiment
Variable-frequency control technique experimental real-training apparatus device shown in Fig. 1,2,3,4; has regulator cubicle cabinet 1; cabinet 1 is L-shaped; the vertical plane of described L shaped cabinet partly is provided with electric plate 2; electric plate is provided with isolating switch 3, holding circuit 4, potentiometer 8 and frequency converter 5, and holding circuit 4 has current foldback circuit and overvoltage crowbar.Potentiometer can connect to analog control mode.Frequency converter 5 adopts the all-round king SB60 of gloomy orchid, and all control terminals of frequency converter are arranged on the electric plate by interface 6.One side of the horizontal component control panel 7 of L shaped cabinet is hinged on the cabinet of planar section.Control panel 7 is provided with A.C. contactor, the time relay, auxiliary reclay, electrothermal relay.Electrical equipment on electric plate 2 and the control panel 7 is connected by the electric unit on the electric plate 2 of flexible cable and regulator cubicle.Frequency converter as shown in Figure 2 connects; R, S, the input of T AC power; three phase converter meets three-phase 380V; U, V, the output of W three-phase alternating current, PE ground connection, the external direct current reactor of P+, P1; the external braking resistor of P+, DB; circuit power terminal [R, S, T] input power supply is by isolating switch or be with earth leakage protective isolating switch to be connected to main circuit power terminal R, S, T, and the rated current of isolating switch (MCCB) is 1.5～2 times of frequency converter rated current, and power supply connects need not consider phase sequence.Inverter output terminal [U, V, W], the sub-U of inverter output terminal, V, W are connected to threephase motor by correct phase sequence.When inconsistent, can in U, V, W three-phase, change its two phase connection as the sense of rotation of action command and motor arbitrarily.
When distribution is very long between frequency converter and the motor,, may cause the undesired even overcurrent trip of frequency converter operation, so distribution connects wave filter or magnet ring at outgoing side when very long, and suitably reduce carrier frequency because distributed capacitance is bigger between line.The wiring distance is as follows with the relation of switching frequency between frequency converter and the motor: wiring distance＜50m＜100m 〉=100m F407≤7≤5≤2, direct current reactor terminal for connecting [P1, P+] is used to connect direct current reactor, and direct current reactor is pressed the frequency inverter capacity adapted.Definitely can not short circuit between outside braking resistor terminal for connecting [P+, DB] P+ and DB terminal, otherwise with damage equipment.Frequency converter ground terminal [PE] is for safety and reduce noise, anti-electric shock and fire alarm accident, and the necessary good earth of ground terminal, stake resistance is less than 1 Ω.Multifunctional relay lead-out terminal 30A, 30B, 30C, during the actuating of relay, normally opened contact 30A, 30B closure, normally closed contact 30B, 30C disconnect.Terminal can bear AC 220V/1A or DC24V/3A, multi-functional lead-out terminal Y1, Y2, the output of Y3 open collector, analog current/voltage output, and terminal can bear the direct current of DC 24V/50mA.External control power supply terminal 24V, 10V, GND, 24V, GND are probe power, 24V, 100mA.10V, GND are the external control power supply, 10V, 24mA.
Claims (4)
1. variable-frequency control technique experimental real-training apparatus, has cabinet, cabinet is provided with frequency converter and related electric components and parts, it is characterized in that: described cabinet is L-shaped, the vertical plane of described L shaped cabinet partly is provided with electric plate, electric plate is provided with isolating switch, current foldback circuit, overvoltage crowbar, potentiometer and frequency converter, and lead connects described electric components, and all control terminals of described frequency converter are arranged on the electric plate by interface; The horizontal component control panel of described L shaped cabinet is provided with A.C. contactor, the time relay, auxiliary reclay, electrothermal relay.
2. variable-frequency control technique experimental real-training apparatus according to claim 1 is characterized in that: described electric plate is provided with the potentiometer that can connect to analog control mode.
3. variable-frequency control technique experimental real-training apparatus according to claim 1 is characterized in that: a side of described control panel is hinged on the cabinet of planar section.
4. variable-frequency control technique experimental real-training apparatus according to claim 1 is characterized in that: described frequency converter adopts the all-round king SB60 of gloomy orchid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920258028XU CN201584090U (en) | 2009-11-11 | 2009-11-11 | Experimental training device for variable-frequency speed regulation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920258028XU CN201584090U (en) | 2009-11-11 | 2009-11-11 | Experimental training device for variable-frequency speed regulation technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584090U true CN201584090U (en) | 2010-09-15 |
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ID=42726099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920258028XU Expired - Fee Related CN201584090U (en) | 2009-11-11 | 2009-11-11 | Experimental training device for variable-frequency speed regulation technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427367A (en) * | 2018-04-03 | 2018-08-21 | 河南工业职业技术学院 | A kind of frequency converter control system |
| CN111161607A (en) * | 2020-02-26 | 2020-05-15 | 三峡大学 | Portable multifunctional electric appliance module containing device for teaching and use method thereof |
-
2009
- 2009-11-11 CN CN200920258028XU patent/CN201584090U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427367A (en) * | 2018-04-03 | 2018-08-21 | 河南工业职业技术学院 | A kind of frequency converter control system |
| CN111161607A (en) * | 2020-02-26 | 2020-05-15 | 三峡大学 | Portable multifunctional electric appliance module containing device for teaching and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20101111 |