CN106788007A - A kind of direct current generator flexible starter - Google Patents
A kind of direct current generator flexible starter Download PDFInfo
- Publication number
- CN106788007A CN106788007A CN201611186487.2A CN201611186487A CN106788007A CN 106788007 A CN106788007 A CN 106788007A CN 201611186487 A CN201611186487 A CN 201611186487A CN 106788007 A CN106788007 A CN 106788007A
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- CN
- China
- Prior art keywords
- direct current
- current generator
- igbt pipes
- connects
- arm processor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
The invention provides a kind of direct current generator flexible starter, including IGBT pipes, 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；Main switch is provided with input positive pole and negative pole；Arm processor connects the grid of IGBT pipes by PWM generator；Voltage measurement unit for measurement input positive pole and negative voltage across poles, the current measuring unit for measuring direct current generator electric current, main switch state feedback unit are connected with arm processor.The present invention, while simplifying the configuration of system, can reduce cost without impacting, smoothly realizing the startup of direct current generator, improve the stability of system operation.
Description
Technical field
The present invention relates 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 limits 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 the series resistance in armature winding is typically with
To realize the startup of direct current generator.Although this kind of 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, is unfavorable for the safe operation of equipment.
The content of the invention
The present invention is to solve electric current excessive technical problem when direct current generator starts.
In order to solve the above-mentioned technical problem, the technical scheme is that providing a kind of direct current generator flexible starter,
It is characterized in that：Including IGBT pipes, the colelctor electrode connection input positive pole of IGBT pipes, the emitter stage of IGBT pipes connects direct current generator
Armature winding one end, 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 connects the armature winding other end；Diode cathode connects the emitter stage of IGBT pipes, diode cathode connection
The colelctor electrode of IGBT pipes；Main switch is provided with input 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
The voltage measurement unit of pressure Ur, the current measuring unit for measuring direct current generator electric current Ir, main switch state feedback unit are 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
Unit's connection arm processor.
It is highly preferred that the display unit is LCD display.
Preferably, the arm processor real-time detection outside starts order input signal, when there is outside startup order,
First adhesive main switch, now magnet exciting coil is powered；Then, arm processor drives PWM generator to send pwm pulse, and electric current is from defeated
Enter positive pole and return to negative pole through IGBT pipes, armature winding, 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,
Generation braking moment, completes the braking of direct current generator.
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 present invention provide device overcome the deficiencies in the prior art, can without impact, smoothly realize direct current generator
Start, while simplifying the configuration of system, reduce cost, improve the stability of system operation.
Brief description of the drawings
The schematic diagram of the direct current generator flexible starter that Fig. 1 is provided for the present embodiment；
Fig. 2 is control section schematic diagram.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
The schematic diagram of the direct current generator flexible starter that Fig. 1 is provided for the present embodiment, wherein, Q is managed 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, and Ur and Ir is represented and is respectively
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 being input between positive pole and negative pole, and Ir is direct current generator electric current.
With reference to Fig. 2, control section uses arm processor, arm processor to be 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, the feedback signal of collection voltages Ur, electric current Ir signals and main switch K01；Arm processor connection is aobvious
Display screen, to show the real-time detection value of Ur, Ir and the real-time status of main switch K01.
Its course of work is as follows：Arm processor real-time detection digital quantity input module DI, MODBUS interface or industrial ether
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 from input positive pole through IGBT pipes,
Armature winding M returns to negative pole, constitutes forward current, and produces 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 includes 64K using STM32 series A RM, the dominant frequency 72MHz of ST Microelectronics's production
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 (7)
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 it is another that magnet exciting coil (L) other end connects armature winding (M)
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
The connection of digital quantity input module, MODBUS interfaces or EPA interface is outside to start command input end.
3. a kind of direct current generator flexible starter as claimed in claim 1, it is characterised in that：Also include for showing voltage
The display unit of Ur, electric current Ir and main switch (K01) state, display unit connects 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.
5. a kind of direct current generator flexible starter as claimed in claim 1, it is characterised in that：The arm processor is real-time
Detection is outside to start order input signal, when have it is outside start order when, first adhesive main switch (K01), now magnet exciting coil (L)
It is powered；Then, arm processor drives PWM generator to send pwm pulse, and electric current is from input positive pole through IGBT pipes, armature winding
(M) negative pole is returned to, forward current is constituted, and produces rotating torques, dragging motor rotation；Then, it is stepped up accounting for for pwm signal
Sky ratio, armature electric current will gradually rise, and torque increase, rotating speed also rises therewith, and final dutycycle reaches 1, armature supply
Rated value is reached, the startup of motor terminates.
6. a kind of direct current generator flexible starter as claimed in claim 5, it is characterised in that：During shutdown, main switch is cut off
(K01), while blocking pwm pulse signal, motor becomes generator operation in the presence of inertia；The electric current of armature winding (M)
Loop is constituted by diode (D), magnet exciting coil (L) and armature winding (M), reverse current is formed, braking moment is generated, completed
The braking of direct current generator.
7. a kind of direct current generator flexible starter as described in claim 5 or 6, it is characterised in that：The arm processor is adopted
The status feedback signal of collecting voltage Ur, electric current Ir signals and main switch (K01), and shown by display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186487.2A CN106788007A (en) | 2016-12-20 | 2016-12-20 | A kind of direct current generator flexible starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186487.2A CN106788007A (en) | 2016-12-20 | 2016-12-20 | A kind of direct current generator flexible starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106788007A true CN106788007A (en) | 2017-05-31 |
Family
ID=58893979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611186487.2A Withdrawn CN106788007A (en) | 2016-12-20 | 2016-12-20 | A kind of direct current generator flexible starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106788007A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001061296A (en) * | 1999-08-23 | 2001-03-06 | Toyota Autom Loom Works Ltd | Controller of shunt-wound motor |
| CN102075140A (en) * | 2011-01-24 | 2011-05-25 | 上海海事大学 | Alternative-current/direct-current (AC/DC) dual-purpose motor control system |
| CN102315806A (en) * | 2010-07-06 | 2012-01-11 | 保定卓尔电气有限公司 | Smooth soft starting device of direct current motor |
-
2016
- 2016-12-20 CN CN201611186487.2A patent/CN106788007A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001061296A (en) * | 1999-08-23 | 2001-03-06 | Toyota Autom Loom Works Ltd | Controller of shunt-wound motor |
| CN102315806A (en) * | 2010-07-06 | 2012-01-11 | 保定卓尔电气有限公司 | Smooth soft starting device of direct current motor |
| CN102075140A (en) * | 2011-01-24 | 2011-05-25 | 上海海事大学 | Alternative-current/direct-current (AC/DC) dual-purpose motor control system |
Non-Patent Citations (1)
| Title |
|---|
| 贾贵玺等: "基于PWM控制的发电机励磁系统", 《天津大学学报》 * |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170531 |
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| WW01 | Invention patent application withdrawn after publication |