CN206341166U - Direct current generator flexible starter - Google Patents
Direct current generator flexible starter Download PDFInfo
- Publication number
- CN206341166U CN206341166U CN201621403649.9U CN201621403649U CN206341166U CN 206341166 U CN206341166 U CN 206341166U CN 201621403649 U CN201621403649 U CN 201621403649U CN 206341166 U CN206341166 U CN 206341166U
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- China
- Prior art keywords
- direct current
- current generator
- igbt pipes
- connects
- arm processor
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- Expired - Fee Related
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- 239000007858 starting material Substances 0.000 title claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 3
- 230000003116 impacting effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Control Of Direct Current Motors (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model provides a kind of direct current generator flexible starter, including IGBT is managed, and the colelctor electrode connection input positive pole of IGBT pipes, the emitter stage of IGBT pipes connects armature winding one end of direct current generator, armature winding other end connection negative pole；Magnet exciting coil one end of direct current generator connects the colelctor electrode of IGBT pipes, the magnet exciting coil other end connection armature winding other end；Diode positive and negative electrode connects the emitter stage of IGBT pipes, colelctor electrode respectively；Input and main switch is provided with positive pole and negative pole；Arm processor connects the grid of IGBT pipes by PWM generator；Voltage measurement unit, the current measuring unit for measuring direct current generator electric current, main switch state feedback unit for measuring input positive pole and negative voltage across poles are connected with arm processor.The utility model while simplifying the configuration of system, can reduce cost, improve the stability of system operation without impacting, smoothly realizing the startup of direct current generator.
Description
Technical field
The utility model is related to a kind of direct current generator flexible starter, it is adaptable in the product of DC MOTOR CONTROL class,
Belong to technical field of electromechanical control.
Background technology
Direct current generator has extensive application due to its superior speed adjusting performance in all trades and professions, is a kind of relatively common
Motor.But in start-up course, the armature supply of direct current generator is larger, has a strong impact on the safety of motor and power supply unit, because
This needs to limit electric current using certain method.Conventional Starting mode has reduced-voltage starting and string resistance startup etc..
In traditional direct current generator string resistance Starting mode, the mode of series resistance in armature winding is generally utilized in
To realize the startup of direct current generator.Although such a mode reduces armature supply to a certain extent, actual starting current is also
It is that, than larger, certain impact still can be caused to motor and power supply unit, be unfavorable for the safe operation of equipment.
Utility model content
To be solved in the utility model is electric current excessive technical problem when direct current generator starts.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of direct current generator flexibility startup dress
Put, it is characterised in that：Including IGBT pipes, the colelctor electrode connection input positive pole of IGBT pipes, the emitter stage connection direct current of IGBT pipes
Armature winding one end of machine, armature winding other end connection negative pole；Magnet exciting coil one end of direct current generator connects the collection of IGBT pipes
Electrode, the magnet exciting coil other end connection armature winding other end；Diode cathode connects the emitter stage of IGBT pipes, diode cathode
Connect the colelctor electrode of IGBT pipes；Input and main switch is provided with positive pole and negative pole；
Arm processor connects the grid of IGBT pipes by PWM generator；For measuring the electricity between input positive pole and negative pole
Press Ur voltage measurement unit, the current measuring unit for measuring direct current generator electric current Ir, main switch state feedback unit equal
It is connected with arm processor.
Preferably, the arm processor is connected by digital quantity input module, MODBUS interfaces or EPA interface
Outside starts command input end.
Preferably, also including the display unit for showing voltage Ur, electric current Ir and main switch (K01) state, display is single
The member connection arm processor.
It is highly preferred that the display unit is LCD display.
Preferably, the arm processor detects outside startup order input signal in real time, when there is outside startup order,
First adhesive main switch, now magnet exciting coil is powered；Then, arm processor driving PWM generator sends pwm pulse, and electric current is from defeated
Enter that positive pole is managed through IGBT, armature winding returns to negative pole, constitute forward current, and produce rotating torques, dragging motor rotation；With
Afterwards, the dutycycle of pwm signal is stepped up, armature electric current will gradually rise, torque increase, rotating speed also rises therewith, most
Whole dutycycle reaches 1, and armature supply reaches rated value, and the startup of motor terminates.
Preferably, during shutdown, main switch is cut off, while blocking pwm pulse signal, motor becomes in the presence of inertia
Generator operation；The electric current of armature winding constitutes loop by diode, magnet exciting coil and armature winding, forms reverse current,
Braking moment is generated, the braking of direct current generator is completed.
Preferably, the status feedback signal of the arm processor collection voltages Ur, electric current Ir signals and main switch, and
Shown by display unit.
The utility model provide device overcome the deficiencies in the prior art, can without impact, smoothly realize direct current
The startup of machine, while simplifying the configuration of system, reduces cost, improves the stability of system operation.
Brief description of the drawings
The schematic diagram for the direct current generator flexible starter that Fig. 1 provides for the present embodiment；
Fig. 2 is control section schematic diagram.
Embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation scope of the present utility model.In addition, it is to be understood that reading the content of the utility model instruction
Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen
Please appended claims limited range.
The schematic diagram for the direct current generator flexible starter that Fig. 1 provides for the present embodiment, wherein, Q manages for IGBT, and D is two
Pole pipe, K01 is main switch, and M is the armature winding of direct current generator, and L is the magnet exciting coil of direct current generator, Ur and Ir represent respectively be
The voltage and current of system.
The colelctor electrode connection input positive pole of IGBT pipes, the emitter stage of IGBT pipes connects armature winding M one end of direct current generator,
The armature winding M other ends connect negative pole；Magnet exciting coil L one end connects the colelctor electrode of IGBT pipes, magnet exciting coil L other ends connection electricity
The pivot winding M other ends；Diode D positive poles connect the emitter stage of IGBT pipes, and diode D negative poles connect the colelctor electrode of IGBT pipes.It is defeated
Enter and main switch K01 is provided with positive pole and negative pole.Ur is the voltage between input positive pole and negative pole, and Ir is direct current generator electric current.
With reference to Fig. 2, control section uses arm processor, and arm processor is connect by digital quantity input module DI, MODBUS
Mouth or the outside startup command input end of EPA interface connection, receive outside and start order；Arm processor is sent out by PWM
Raw device connects the grid of IGBT pipes, sends the work of pwm pulse drive system；Arm processor is connected by digital output module DO
Main switch K01 is met, drives it to act；Arm processor is also connected with voltage Ur measuring units, electric current Ir measuring units and main switch
K01 state feedback units, collection voltages Ur, electric current Ir signals and main switch K01 feedback signal；Arm processor connection is aobvious
Display screen, to show Ur, Ir real-time detected value and main switch K01 real-time status.
Its course of work is as follows：Arm processor detects digital quantity input module DI, MODBUS interface or industrial ether in real time
The input signal of network interface.When there is outside startup order, arm processor first exports digital quantity DO signal adhesive main switch K01,
Now, magnet exciting coil L bands 220V direct currents.Then, arm processor sends pwm pulse, electric current manages from input positive pole through IGBT,
Armature winding M returns to negative pole, constitutes forward current, and produce rotating torques, dragging motor rotation.Then, arm processor is progressively
Increase the dutycycle of pwm signal, armature electric current will gradually rise, torque increase, rotating speed also rises therewith, final dutycycle
1 is reached, armature supply reaches rated value, the startup of motor terminates.During shutdown, main switch K01 is cut off, while blocking pwm pulse
Signal, motor becomes generator operation in the presence of inertia, and the electric current of armature winding passes through diode D, magnet exciting coil L
Loop is constituted with armature winding M, reverse current is formed, braking moment is generated, the braking of direct current generator is completed.
The control chip of device uses STM32 series A RM, the dominant frequency 72MHz that ST Microelectronics produces, and includes 64K
FLASH and 20K RAM.PWM generator is configured with chip, PWM pulse-width controlleds can be easily realized.In addition, chip has
Analog-digital conversion function, can the signal such as collection voltages, electric current, and send to display panel on the spot.
Display panel LCD uses the TFT configuration screens of high reliability on the spot, and the communication between ARM connects for standard RS232
Mouthful.
Claims (4)
1. a kind of direct current generator flexible starter, it is characterised in that：Including IGBT pipes, the colelctor electrode connection input of IGBT pipes is just
Pole, the emitter stage of IGBT pipes connects armature winding (M) one end of direct current generator, armature winding (M) other end connection negative pole；Direct current
Magnet exciting coil (L) one end of motor connects the colelctor electrode of IGBT pipes, and magnet exciting coil (L) other end connection armature winding (M) is another
End；Diode (D) positive pole connects the emitter stage of IGBT pipes, and diode (D) negative pole connects the colelctor electrode of IGBT pipes；Input positive pole and
Main switch (K01) is provided with negative pole；
Arm processor connects the grid of IGBT pipes by PWM generator；For measuring the voltage Ur between input positive pole and negative pole
Voltage measurement unit, the current measuring unit for measuring direct current generator electric current Ir, main switch (K01) state feedback unit it is equal
It is connected with arm processor.
2. a kind of direct current generator flexible starter as claimed in claim 1, it is characterised in that：The arm processor passes through
Digital quantity input module, MODBUS interfaces or the outside startup command input end of EPA interface connection.
3. a kind of direct current generator flexible starter as claimed in claim 1, it is characterised in that：Also include being used to show voltage
Ur, electric current Ir and main switch (K01) state display unit, display unit connect the arm processor.
4. a kind of direct current generator flexible starter as claimed in claim 3, it is characterised in that：The display unit is LCD
Display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403649.9U CN206341166U (en) | 2016-12-20 | 2016-12-20 | Direct current generator flexible starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403649.9U CN206341166U (en) | 2016-12-20 | 2016-12-20 | Direct current generator flexible starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206341166U true CN206341166U (en) | 2017-07-18 |
Family
ID=59300923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621403649.9U Expired - Fee Related CN206341166U (en) | 2016-12-20 | 2016-12-20 | Direct current generator flexible starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206341166U (en) |
-
2016
- 2016-12-20 CN CN201621403649.9U patent/CN206341166U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |