CN206658168U - A kind of RHVC of the slip frequency controlled based on DSP - Google Patents
A kind of RHVC of the slip frequency controlled based on DSP Download PDFInfo
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- CN206658168U CN206658168U CN201720207562.2U CN201720207562U CN206658168U CN 206658168 U CN206658168 U CN 206658168U CN 201720207562 U CN201720207562 U CN 201720207562U CN 206658168 U CN206658168 U CN 206658168U
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- dsp2812
- mitsubishi
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- photoelectric coupled
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Abstract
The utility model discloses a kind of RHVC of the slip frequency controlled based on DSP.It includes bridge-type uncontrollable rectifier module, Mitsubishi's IPM modules, contactor control circuit, photoelectric coupled circuit, DSP2812 and rotary encoder, bridge-type uncontrollable rectifier module inputs side joint 380V power supplys, the DC side input side of bridge-type uncontrollable rectifier module output side joint Mitsubishi IPM modules；Six road pwm signal ends of Mitsubishi's IPM modules input side joint photoelectric coupled circuit output, to control inverter circuit, three phase squirrel cage motor connects the three-phase alternating current output end of Mitsubishi's IPM modules；Contactor control circuit is connected with contactor main contacts KM, KM1, KM2；Six road pwm signal ends of photoelectric coupled circuit input termination DSP2812 outputs, photoelectric coupled circuit output termination DSP2812 /PDPINTA pins；DSP2812 is connected with the first button, the second button, and DSP2812 also connects current sensor by A/D module, and DSP2812 connects rotary encoder by orthogonal coding electric current.The advantages of there is the utility model dynamic and static performance to get a promotion, and direct torque is more accurate, and control device cost is cheap.
Description
Technical field
The utility model relates to a kind of control device of electric motor, and in particular to a kind of slip frequency control based on DSP
The RHVC of system.
Background technology
At present, the most of motor frequency change arrangements for speed regulation are rotating, start and stop using frequency converter progress motor
And speed regulating control, but problems be present：1st, it is a kind of rotating speed open-loop control system, quiet, dynamic property is all limited；2nd, torque
Uncontrollable, there is overcompensation or undercompensation situation in compensated torque；3rd, it is controlled using frequency converter, cost is higher.
In summary, the utility model devises a kind of RHVC of the slip frequency controlled based on DSP.
Utility model content
In view of the shortcomings of the prior art, the purpose of the utility model is to be to provide a kind of slip frequency based on DSP
The RHVC of rate control, there is dynamic and static performance to get a promotion, direct torque is more accurate, and control device cost is cheap
The advantages of.
To achieve these goals, the utility model is to realize by the following technical solutions：It is a kind of to be turned based on DSP
The RHVC of difference frequency control, including bridge-type uncontrollable rectifier module, Mitsubishi's IPM modules, three phase squirrel cage motor, contact
Device control circuit, photoelectric coupled circuit, DSP2812, the first button, the second button, LCD12864, current sensor and rotary coding
Device, bridge-type uncontrollable rectifier module input side joint 380V power supplys, the direct current of bridge-type uncontrollable rectifier module output side joint Mitsubishi IPM modules
Side input side；Six road pwm signal ends of Mitsubishi's IPM modules input side joint photoelectric coupled circuit output, to control inverter circuit, three-phase mouse
Cage motor connects the three-phase alternating current output end of Mitsubishi's IPM modules；Contactor control circuit and contactor main contacts KM, KM1, KM2
It is connected；Six road pwm signal ends of photoelectric coupled circuit input termination DSP2812 outputs, photoelectric coupled circuit output termination DSP2812/
PDPINTA pins；DSP2812 is connected with the first button, the second button, and DSP2812 also connects current sensor by A/D module,
DSP2812 connects rotary encoder by orthogonal coding electric current.
Preferably, described bridge-type uncontrollable rectifier module model MDS100-16, the Mitsubishi IPM module models
PM450CLA120。
Preferably, high, low speed photo-coupler model HCPL4504, PC817 in described photoelectric coupled circuit, described
Current sensor LEM models HAS100.
Preferably, the rotary encoder model Ztel bodyguard encoder, basic parameter is 600 pulses, 600 lines, AB
Two-phase output, operating voltage 5-24V.
Preferably, described Mitsubishi IPM modules outlet side connects the output protection end of photoelectric coupled circuit all the way, to realize Mitsubishi
The under-voltage of IPM modules, excessively stream, overheat and short-circuit protection, the three-phase alternating current needed for the operation of another way output motor.
The beneficial effects of the utility model：Compared with prior art, there is dynamic and static performance to get a promotion, torque control
The advantages of system is more accurate, and control device cost is cheap.
Brief description of the drawings
Describe the utility model in detail with reference to the accompanying drawings and detailed description；
Fig. 1 is integrated circuit figure of the present utility model；
Fig. 2 is contactor control circuit structure chart of the present utility model；
Fig. 3 is the connection circuit structure diagram of photoelectric coupled circuit of the present utility model and Mitsubishi's IPM modules.
Fig. 4 is DSP2812 peripheral circuits structure chart of the present utility model.
Embodiment
Technological means, creation characteristic, reached purpose and effect to realize the utility model are easy to understand, below
With reference to embodiment, the utility model is expanded on further.
Reference picture 1, present embodiment use following technical scheme：A kind of change of the slip frequency controlled based on DSP
Frequency modulation speed variator, including bridge-type uncontrollable rectifier module 100, Mitsubishi's IPM modules 200, three phase squirrel cage motor 300, contactor control
Circuit 400, photoelectric coupled circuit 500, DSP2812, two buttons, LCD12864, current sensor LEM and rotary encoder processed
600, bridge-type uncontrollable rectifier module 100 inputs side joint 380V power supplys, the DC side input electricity of output side joint Mitsubishi IPM modules 200
Pressure；Mitsubishi's IPM modules 200 input six road pwm signals of side joint photoelectric coupled circuit output, and to control inverter circuit, outlet side is all the way
The output protection end of photoelectric coupled circuit 500 is connect, it is another to realize the under-voltage of Mitsubishi's IPM modules 200, excessively stream, overheat and short-circuit protection
Three-phase alternating current needed for the output motor operation of road；Motor connects the three-phase alternating current output end of Mitsubishi's IPM modules 200；Contact
Control contactor main contacts KM, KM1, the KM2 of device control circuit 400 and positive-negative rotation state show circuit；Photoelectric coupled circuit input termination
Six road pwm signals of DSP2812 outputs, output termination DSP2812 /PDPINTA pins；DSP2812 receives current sample letter
Number, rotating speed sampled signal, error protection signal and 2 push button signallings, an output end part is connected with LCD12864, display rotating speed
Information, another part export six road PWM signals, connect optocoupler input.
As shown in figure 1, when KM main contacts closes, power on, conversely, power remove.When KM main contacts closes, if
KM1 main contacts closes, then motor rotates forward；If KM2 main contacts closes, motor reversion；If KM1, KM2 main contacts do not close
Close, then motor stops.DSP2812 obtains the rotating speed size and Orientation of motor running by rotary encoder, decompression chip
Information, then DSP calculates real-time angular speed W according to the rotating speed size of detection, then calculates W and setting angular frequency W*Error, it is right
Error carries out the PI computings of speed regulator and slicing operation obtains slip angular frequency and givenObtained after being added again with W
Stator gives angular frequency W1 *, by W1 *With stator current sampled value ISFrom the U of DSP storagesS=f (W1,IS) can check in function to
Determine stator voltageInverter circuit uses SPWM control modes, same for segmentation using symmetric regular-sampled method, PWM mode
Step system, such switching frequency will change in the range of comparison is concentrated, DSP need to set the time of dying, carrier frequency,
Carrier wave ratio, modulation degree simultaneously store three phase sine table, for calling.2 buttons are used to set motor speed, and the first button S1 is pressed
Lower speedup, the second button S2 press deceleration；LCD12864 is used to show motor setting speed and real-time speed.
As shown in Fig. 2 left side circuit realiration rotates forward, inverts the status display of indicator lamp and the break-make control of KM main contacts
System；The right circuit is rotated forward, reversion button is linkage button, and electric motor state can rotated forward, toggled between reversion, without parking
Invert again；When KM coils obtain electric, forward and backward control could be carried out, it is otherwise invalid；When electrothermal relay overheat or stop button are pressed
When lower, motor is out of service.
As shown in figure 3, six tunnel photoelectric coupled circuits of DSP outputs are isolated and Mitsubishi's IPM modules are sent to after amplifying, six road optocouplers
Circuit structure all same, the detailed circuit of photoelectric coupled circuit all the way is only gived in figure, and PWM1 signals are input to drawing for HCPL4504
Pin 2, pin 6 export PWM driving ripples and are sent to the pins 15 of Mitsubishi's IPM modules, HCPL4504 pin 8 and Mitsubishi's IPM modules
Pin 16 connects+15V power supplys, and pin 3, pin 5 are grounded.When there are excessively stream, overheat or short-circuit conditions in IPM inside modules, IPM moulds
The pin 14 of block exports low level, and F01 output ends are dragged down, and is changed into low level, and F01~F06 output ends are sent by 6 inputs with door
To DSP /PDPINTA mouths, carry out interruption protection, the pin 1 of IPM modules draws to the DC supply input that pin 6 is about 540V
Pin 7, pin 9, pin 11 are three-phase alternating current electricity output, connect motor load.
As shown in figure 4, DSP exports six road pwm signals to six tunnel photoelectric coupled circuits, simultaneously/PDPINTA ports receive 6 inputs
With the output signal of door, current sampling circuit devises clamping protective circuit, in order to avoid A/D ports are burnt, rotary encoder output
The pulse of A, B phase DSP orthogonal coding circuit is sent to after AMS1117-3.3 voltage stabilizings, to protect DSP I/O mouths, S1, S2
Button is for accelerating, control of slowing down, and LCD12864 is used to show setting speed and real-time rotating speed, and DSP is according to the information sampled
Slip frequency and inversion control are carried out, so as to realize the frequency control of motor.
In summary, present embodiment makes quiet, the dynamic property of RHVC get a promotion, and realizes torque
Indirect accurate control, avoid torque overcompensation or undercompensation situation, DSP use improves the control of RHVC
Precision and response speed processed, are reduced cost, have certain application and promotional value.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (5)
1. a kind of RHVC of the slip frequency controlled based on DSP, it is characterised in that including bridge-type uncontrollable rectifier module
(100), Mitsubishi IPM modules (200), three phase squirrel cage motor (300), contactor control circuit (400), photoelectric coupled circuit (500),
DSP2812, the first button (S1), the second button (S2), LCD12864, current sensor LEM and rotary encoder (600), bridge
Formula uncontrollable rectifier module (100) inputs side joint 380V power supplys, bridge-type uncontrollable rectifier module (100) output side joint Mitsubishi IPM modules
(200) DC side input side；Six road pwm signal ends of Mitsubishi's IPM modules (200) input side joint photoelectric coupled circuit (500) output,
To control inverter circuit, three phase squirrel cage motor (300) connects the three-phase alternating current output end of Mitsubishi's IPM modules (200)；Contactor control
Circuit (400) processed is connected with contactor main contacts KM, KM1, KM2；The six of photoelectric coupled circuit (500) input termination DSP2812 outputs
Road pwm signal end, photoelectric coupled circuit (500) output termination DSP2812 /PDPINTA pins；DSP2812 and the first button (S1),
Second button (S2) is connected, and DSP2812 also meets current sensor LEM, DSP2812 by A/D module and connect by orthogonal coding electric current
Rotary encoder (600).
A kind of 2. RHVC of slip frequency controlled based on DSP according to claim 1, it is characterised in that
Described bridge-type uncontrollable rectifier module (100) model MDS100-16, Mitsubishi IPM modules (200) model
PM450CLA120。
A kind of 3. RHVC of slip frequency controlled based on DSP according to claim 1, it is characterised in that
High, low speed photo-coupler model HCPL4504, PC817 in described photoelectric coupled circuit (500), the current sensor LEM
Model HAS100.
A kind of 4. RHVC of slip frequency controlled based on DSP according to claim 1, it is characterised in that
Rotary encoder (600) model Ztel's bodyguard encoder, basic parameter are 600 pulses, 600 lines, the output of AB two-phases, work
Voltage 5-24V.
5. a kind of RHVC of slip frequency controlled based on DSP according to claim 1, described Mitsubishi
IPM modules (200) outlet side connects the output protection end of photoelectric coupled circuit (500) all the way, to realize under-voltage, the mistake of Mitsubishi's IPM modules
Stream, overheat and short-circuit protection, the three-phase alternating current needed for the operation of another way output motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720207562.2U CN206658168U (en) | 2017-03-03 | 2017-03-03 | A kind of RHVC of the slip frequency controlled based on DSP |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720207562.2U CN206658168U (en) | 2017-03-03 | 2017-03-03 | A kind of RHVC of the slip frequency controlled based on DSP |
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| Publication Number | Publication Date |
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| CN206658168U true CN206658168U (en) | 2017-11-21 |
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| CN201720207562.2U Expired - Fee Related CN206658168U (en) | 2017-03-03 | 2017-03-03 | A kind of RHVC of the slip frequency controlled based on DSP |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107803A (en) * | 2021-04-13 | 2021-07-13 | 南通大学 | Quick stop device of polyester melt metering pump for chemical industry |
| CN115179650A (en) * | 2021-11-18 | 2022-10-14 | 北人智能装备科技有限公司 | Device and method for remotely and accurately adjusting overprinting precision |
-
2017
- 2017-03-03 CN CN201720207562.2U patent/CN206658168U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107803A (en) * | 2021-04-13 | 2021-07-13 | 南通大学 | Quick stop device of polyester melt metering pump for chemical industry |
| CN113107803B (en) * | 2021-04-13 | 2022-08-19 | 南通大学 | Quick stop device of polyester melt metering pump for chemical industry |
| CN115179650A (en) * | 2021-11-18 | 2022-10-14 | 北人智能装备科技有限公司 | Device and method for remotely and accurately adjusting overprinting precision |
| CN115179650B (en) * | 2021-11-18 | 2023-10-20 | 北人智能装备科技有限公司 | Remote accurate overprinting precision adjusting device and adjusting method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171121 Termination date: 20200303 |
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| CF01 | Termination of patent right due to non-payment of annual fee |