CN203457095U - Variable frequency controller used to control torque motor - Google Patents
Variable frequency controller used to control torque motor Download PDFInfo
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- CN203457095U CN203457095U CN201320545873.1U CN201320545873U CN203457095U CN 203457095 U CN203457095 U CN 203457095U CN 201320545873 U CN201320545873 U CN 201320545873U CN 203457095 U CN203457095 U CN 203457095U
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Abstract
Provided is a variable frequency controller used to control a torque motor. The variable frequency controller comprises a main circuit, a control circuit, and an operation panel. The main circuit comprises a power input interface, a rectifier circuit, a filtering circuit, a braking circuit, an inverter circuit, and a variable voltage variable frequency interface. The control circuit comprises a central processor, an integrated circuit, a base driving circuit, a DC side voltage acquisition module, and an AC side voltage acquisition module. The variable frequency controller can effectively solve a problem that the maximum speed of the torque motor is not adjustable, and improves control precision, and meanwhile production cost is reduced.
Description
Technical field
The utility model relates to frequency-variable controller, is specifically related to the frequency-variable controller for control moment motor.
Background technology
Present wire stock processing equipment need to carry out spool spooling to the finished product machining mostly.Used adopts torque motor to drive spool spooling, material need to require to tighten up in I-beam wheel according to certain tension force after prime is processed, by torque motor, drive rolling I-beam wheel, by Moment Motor Controller (voltage regulator), set rolling torque, driving moment motor keeps setting tension force; Rolling part is not installed the checkout gear of the signal of the current Tensity size of feedback.But which energy consumption is large, torque motor and controller maintenance cost are high, and motor maximum speed is fixed (50Hz), cannot adjust as required.Be badly in need of a kind of new control mode and solve above problem, to guarantee the accurate control to torque motor, improve the quality of products and production security, meet different production and processing demands.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of frequency-variable controller for control moment motor, and this frequency-variable controller can effectively solve the nonadjustable problem of torque motor maximum speed, improves control precision.
For achieving the above object, the utility model is achieved through the following technical solutions:
For a frequency-variable controller for control moment motor, comprise main circuit, control circuit and guidance panel, main circuit comprises power input interface, rectification circuit, filter circuit, braking circuit, inverter circuit and variable-frequency variable-voltage output interface; Control circuit comprises central processing unit, integrated circuit, base drive circuit, DC voltage acquisition module, DC side current acquisition module and AC voltage acquisition module; Wherein,
Power input interface connects rectification circuit, rectification circuit is communicated with inverter circuit by filter circuit and braking circuit, inverter circuit is connected with variable-frequency variable-voltage output interface, between rectification circuit and inverter circuit, form main circuit DC side, between inverter circuit and variable-frequency variable-voltage output interface, form main circuit AC, main circuit DC side is connected to respectively the central processing unit of control circuit through DC voltage acquisition module, DC side current acquisition module; Central processing unit is connected with integrated circuit, and base drive circuit is all communicated with the inverter circuit of main circuit and the integrated circuit of control circuit, and variable voltage variable frequency output interface is also connected with central processing unit by AC voltage acquisition module;
Guidance panel is all communicated with central processing unit and integrated circuit.
According in a specific embodiment of the present utility model, integrated circuit mainly comprises computing circuit, and computing circuit is all connected with base drive circuit with central processing unit.
The beneficial effects of the utility model are: by the use of this frequency-variable controller, solved well the nonadjustable problem of torque motor maximum speed, guaranteed control precision, it is large that motor speed control range becomes, respond rapider, convenient operation personnel observe the parameters such as the output voltage, electric current, torque of equipment in the course of processing, and product reliability further improves, and has reduced production cost simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the frequency-variable controller for control moment motor of the present utility model;
V/F characteristic curve when Fig. 2 is general frequency-variable controller work; And
Fig. 3 is the V/F characteristic curve during according to frequency-variable controller of the present utility model work.
Embodiment
Below in conjunction with accompanying drawing, describe the frequency-variable controller for control moment motor of the present utility model in detail.It will be appreciated by those skilled in the art that the embodiment the following describes is only to exemplary illustration of the present utility model, but not for it being made to any restriction.
As shown in Figure 1, according to the frequency-variable controller for control moment motor of the present utility model, mainly comprise main circuit 1, control circuit 2 and guidance panel 3.Main circuit 1 mainly comprises power input interface, rectification circuit, filter circuit, braking circuit, inverter circuit and variable-frequency variable-voltage output interface.Control circuit 2 mainly comprises central processing unit (CPU), integrated circuit (LSI), base drive circuit, DC voltage acquisition module, DC side current acquisition module and AC voltage acquisition module.
As shown in Figure 1, power input interface connects rectification circuit, rectification circuit is communicated with inverter circuit by filter circuit and braking circuit, inverter circuit is connected with variable-frequency variable-voltage output interface, between rectification circuit and inverter circuit, form main circuit DC side, between inverter circuit and variable-frequency variable-voltage output interface, form main circuit AC, main circuit DC side is connected to respectively the CPU of control circuit 2 through DC voltage acquisition module, DC side current acquisition module; CPU is connected with LSI, and base drive circuit is all communicated with the inverter circuit of main circuit 1 and the LSI of control circuit 2, and variable voltage variable frequency output interface is also connected with CPU by AC voltage acquisition module.Wherein, LSI mainly comprises computing circuit, drive circuit and protective circuit, and computing circuit is all connected with base drive circuit with CPU.Guidance panel 3 is all communicated with CPU and LSI, a plurality of shift knobs and signal parameter is installed on guidance panel 3 and shows and regulation meter.
For the torque motor of controlling in wire rod production and processing, be example below, describe in detail according to the operation principle of frequency-variable controller of the present utility model.
Present wire stock processing equipment need to carry out spool spooling to the finished product machining mostly, conventionally adopts torque motor to drive spool spooling.Material need to require to tighten up in I-beam wheel according to certain tension force after prime is processed, and by torque motor, drives rolling I-beam wheel, by Moment Motor Controller (being generally voltage regulator), sets rolling torque, and driving moment motor keeps setting tension force.
As shown in Figure 1, when frequency-variable controller of the present utility model replaces conventional voltage regulator when controlling the torque motor of wire rod production and processing, torque motor is connected with the variable-frequency variable-voltage output interface of frequency-variable controller.Rectifier becomes industrial-frequency alternating current into direct current by rectification; In order to reduce and to suppress the electromagnetic interference that frequency converter produces, direct current after filtering circuit arrives inverter circuit, then by inverter circuit, direct current is transformed to all controlled alternating currents of frequency, voltage; The alternating current driving moment motor of output carries out work; In order to consume the feedback energy that in slowing-down brake process, motor produces, the resistance of braking circuit part can consume the voltage of rising, auxiliary frequency-variable controller slowing-down brake, protection main circuit 1.
Mains switch by guidance panel 3 starts frequency-variable controller, according to the input torque parameter on predetermined torque setting guidance panel 3.Guidance panel 3 is transferred to CPU and LSI by input signal, and CPU receives the signal that DC voltage acquisition module, DC side current acquisition module and AC voltage acquisition module gather simultaneously, produces control signal and be transferred to LSI after calculation process.
Because rolling requires moment constant, otherwise take-up there will be the inconsistent situation of degree of tightness.And rolling initial stage silk ingot external diameter is smaller in practical application, now rotating ratio is higher.And along with the increase of silk ingot external diameter, speed will lower thereupon, but moment will remain unchanged.Computing circuit by LSI compares computing by the signal of the same electric currents of instruction such as outside speed, torque, voltage acquisition module collection, determines output voltage (V), the frequency (F) of inverter circuit.By setting the software algorithm of computing circuit, while calculating V/F curve in computing circuit, make V keep invariable.Then, base drive circuit amplifies the control signal of computing circuit, and is input to inverter circuit and controls, thereby realizes the control object of constant moment of force.
As shown in Figures 2 and 3, according to frequency-variable controller of the present utility model, when the control moment machine operation, its square frequently characteristic curve is not traditional increasing along with the increase of frequency, is that moment remains unchanged along with the increase/reduction of frequency on the contrary.
Therefore, according to frequency-variable controller of the present utility model, when the control moment machine operation, realized the broader speed/torque setting range of being in harmonious proportion of torque motor maximum speed.Sustainablely in full speed range provide specified or higher torque, adaptable to rolling disk track, accuracy of identification is high, and Ability of Resisting Disturbance is strong, thereby fundamentally having guaranteed that wire rod adds provides the tension force of self-consistentency control characteristic man-hour.Tension force is controlled accurately, particularly can in acceleration and deceleration dynamic operation, provide and continue constant tension force.Meanwhile, while adopting frequency-variable controller control moment motor scheme of the present utility model, original operating habit is constant.
In addition, according to the frequency-variable controller for control moment motor of the present utility model, both voltage can be changed separately, frequency, the setting of being correlated with according to actual needs can be changed separately again.Meanwhile, the use of frequency-variable controller, makes operating personnel can observe the parameter such as output voltage, electric current, torque of equipment in the course of processing, for processing provides more reliable control program.
Claims (2)
1. for a frequency-variable controller for torque motor, comprise main circuit, control circuit and guidance panel, it is characterized in that, main circuit comprises power input interface, rectification circuit, filter circuit, braking circuit, inverter circuit and variable-frequency variable-voltage output interface; Control circuit comprises central processing unit, integrated circuit, base drive circuit, DC voltage acquisition module, DC side current acquisition module and AC voltage acquisition module; Wherein,
Power input interface connects rectification circuit, rectification circuit is communicated with inverter circuit by filter circuit and braking circuit, inverter circuit is connected with variable-frequency variable-voltage output interface, between rectification circuit and inverter circuit, form main circuit DC side, between inverter circuit and variable-frequency variable-voltage output interface, form main circuit AC, main circuit DC side is connected to respectively the central processing unit of control circuit through DC voltage acquisition module, DC side current acquisition module; Central processing unit is connected with integrated circuit, and base drive circuit is all communicated with the inverter circuit of main circuit and the integrated circuit of control circuit, and variable voltage variable frequency output interface is also connected with central processing unit by AC voltage acquisition module;
Guidance panel is all communicated with central processing unit and integrated circuit.
2. the frequency-variable controller for torque motor according to claim 1, is characterized in that, integrated circuit mainly comprises computing circuit, and computing circuit is all connected with base drive circuit with central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545873.1U CN203457095U (en) | 2013-09-03 | 2013-09-03 | Variable frequency controller used to control torque motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545873.1U CN203457095U (en) | 2013-09-03 | 2013-09-03 | Variable frequency controller used to control torque motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203457095U true CN203457095U (en) | 2014-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320545873.1U Expired - Fee Related CN203457095U (en) | 2013-09-03 | 2013-09-03 | Variable frequency controller used to control torque motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203457095U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457534A (en) * | 2013-09-03 | 2013-12-18 | 上海理工大学 | Inverter controller and method for controlling torque motor |
| CN109981004A (en) * | 2019-04-23 | 2019-07-05 | 西安微电子技术研究所 | A kind of brushless torque motor starting driving circuit |
-
2013
- 2013-09-03 CN CN201320545873.1U patent/CN203457095U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457534A (en) * | 2013-09-03 | 2013-12-18 | 上海理工大学 | Inverter controller and method for controlling torque motor |
| CN103457534B (en) * | 2013-09-03 | 2016-02-10 | 上海理工大学 | For frequency-variable controller and the method for control moment motor |
| CN109981004A (en) * | 2019-04-23 | 2019-07-05 | 西安微电子技术研究所 | A kind of brushless torque motor starting driving circuit |
| CN109981004B (en) * | 2019-04-23 | 2020-12-08 | 西安微电子技术研究所 | Brushless torque motor starts drive circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20140903 |
|
| EXPY | Termination of patent right or utility model |