CN206743147U - A kind of mining traction locomotive DC motor driver - Google Patents
A kind of mining traction locomotive DC motor driver Download PDFInfo
- Publication number
- CN206743147U CN206743147U CN201720552081.5U CN201720552081U CN206743147U CN 206743147 U CN206743147 U CN 206743147U CN 201720552081 U CN201720552081 U CN 201720552081U CN 206743147 U CN206743147 U CN 206743147U
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- CN
- China
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- circuit
- dsp controller
- detection unit
- contactor
- signal sample
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Abstract
The utility model discloses a kind of mining traction locomotive DC motor driver, including main circuit and control circuit, the main circuit includes the dc source being sequentially connected in series, air switch, charging resistor, filter capacitor, H bridge chopper circuits, direct current generator, the control circuit includes dsp controller, IGBT drive circuit, signal sample circuit and contactor, the input of the signal sample circuit is connected with main circuit, the output end of signal sample circuit is connected with dsp controller, dsp controller and IGBT drive circuit, contactor is connected, IGBT drive circuit is connected with H bridge chopper circuits, the normally opened contact of the contactor is attempted by charging resistor both ends.The utility model eliminates traditional serial-resistance speed-regulation mode, using stepless speed regulation mode, has reached the effect for extending locomotive service life and saving electric energy, has realized mining electric locomotive high efficiency safe and reliable operation.
Description
Technical field
Direct current generator field is the utility model is related to, more particularly to a kind of mining traction locomotive DC motor driver.
Background technology
With the enhancing of development and the awareness of saving energy of coal production, mining traction electric motor uses series excitation rheostatic speed regulation mode
The drawbacks of it is more and more obvious, such as：The energy consumption of its resistance in itself can not solve all the time, cause energy waste；Machine driving can not
Realize soft start, impact during startup larger, not only drive mechanism is harmful to, and it is also very dangerous during trailer；Electric locomotive is run
When on-load switch, the contact electric current that withstands shocks is larger, easy short-circuit scaling loss, so as to increase maintenance capacity and material consumption；Only
One air switch protection, security difference etc..Therefore there is an urgent need to a kind of new DC motor driver to original electric car
Driver is updated the replacement, to adapt to modern coal mining industry to energy-efficient requirement, and promotes the development of modern mining technology.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of mining hauling machine simple in construction, reliable
Car DC motor driver.
The technical scheme that the utility model solves the above problems is：A kind of mining traction locomotive DC motor driver, bag
Include main circuit and control circuit, dc source that the main circuit includes being sequentially connected in series, air switch, charging resistor, filtered electrical
Appearance, H bridges chopper circuit, direct current generator, the control circuit include dsp controller, IGBT drive circuit, signal sample circuit and
Contactor, the input of the signal sample circuit are connected with main circuit, output end and the dsp controller phase of signal sample circuit
Even, dsp controller is connected with IGBT drive circuit, contactor, and IGBT drive circuit is connected with H bridge chopper circuits, the contact
The normally opened contact of device is attempted by charging resistor both ends.
Above-mentioned mining traction locomotive DC motor driver, the signal sample circuit include voltage detection unit, electric current
Detection unit, speed detection unit, forward-reverse detection unit, the voltage detection unit are attempted by both ends of filter capacitor, electricity
The output end of pressure detection unit is connected with dsp controller, and current detecting unit is serially connected in main circuit, the letter of current detecting unit
Number output end is connected with dsp controller, and speed detection unit, the input of forward-reverse detection unit are connected with direct current generator,
Speed detection unit, the output end of forward-reverse detection unit are connected with dsp controller.
Above-mentioned mining traction locomotive DC motor driver, the control circuit also include accessory power supply, and accessory power supply is defeated
Enter to terminate between air switch and charging resistor, the output end of accessory power supply is connected with dsp controller.
Above-mentioned mining traction locomotive DC motor driver, the control circuit also include RS485 communication modules, DSP controls
Device processed is connected with RS485 communication modules, is realized and communicated by RS485 communication modules and host computer.
The beneficial effects of the utility model are：
1st, the utility model eliminates traditional serial-resistance speed-regulation mode, using stepless speed regulation mode, stepless speed regulation principle
It is the dutycycle for changing IGBT, control voltage size, stepless speed regulation is direct-on-line starting when opening, and has a minimum restriction
Voltage 160V or so, it is ensured that motor can be started up normally.Then the size that dutycycle is adjusted by dsp controller is defeated to adjust
Go out voltage and realize stepless speed regulation, reached the effect for extending locomotive service life and saving electric energy, realized mine motor overall height
Efficiency safe and reliable operation.
2nd, signal sample circuit of the present utility model include voltage detection unit, current detecting unit, speed detection unit,
Forward-reverse detection unit, electric moter voltage, current of electric, motor speed, motor positive and inverse can be detected in real time, work as ginseng
When number is abnormal, effectively it can prevent motor from burning out.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model includes main circuit and control circuit, the main circuit includes the direct current being sequentially connected in series
Power supply DC500V, air switch QF, charging resistor R1, filter capacitor C1, H bridge chopper circuit, direct current generator M2, H bridge copped wave electricity
Road includes 4 IGBT VT1 ~ VT4 and 41 ~ D4 of sustained diode.
The control circuit includes dsp controller, IGBT drive circuit, signal sample circuit, accessory power supply, RS485 and led to
Believe module and contactor K1, accessory power supply input is terminated between air switch QF and charging resistor R1, the output of accessory power supply
End be connected with dsp controller, the input of the signal sample circuit is connected with main circuit, the output end of signal sample circuit and
Dsp controller is connected, and dsp controller is connected with IGBT drive circuit, contactor K1, IGBT drive circuit and H bridge chopper circuits
It is connected, the normally opened contact of the contactor K1 is attempted by charging resistor R1 both ends.Dsp controller is connected with RS485 communication modules,
Realized and communicated by RS485 communication modules and host computer.
The signal sample circuit includes voltage detection unit, current detecting unit, speed detection unit, forward-reverse inspection
Unit is surveyed, the voltage detection unit is attempted by filter capacitor C1 both ends, output end and the dsp controller phase of voltage detection unit
Even, current detecting unit is serially connected in main circuit, and the signal output part of current detecting unit is connected with dsp controller, speed inspection
Survey unit, the input of forward-reverse detection unit is connected with direct current generator M2, speed detection unit, forward-reverse detection unit
Output end be connected with dsp controller.
Operation principle of the present utility model is as follows：Manual closing air switch QF first, it is auxiliary that control circuit has electric current to pass through
Help power supply obtain it is electric after export 24v power supplys give dsp controller power supply, now charging resistor charge；DSP after charging resistor charges
Controller outputs control signals to contactor K1, and contactor K1 coil obtains electric, contactor K1 normally opened contact closure, charging electricity
Resistance is short-circuited.By IGBT after the normal startup of motor（VT1~VT4）With the H bridge chopper circuit controls of fly-wheel diode (D1 ~ D4) composition
Motor M2 rotatings processed；EV in dsp controller first（Event manager module）Hold output signal connection IGBT drive circuit defeated
Enter end, IGBT drive circuit output end connection IGBT（VT1~VT4）Grid G controls each IGBT break-makes.When VT1 and VT4 is turned on,
Electric current passes through motor M2 from left to right from positive source through VT1, then returns to power cathode through VT4 again, and the electric current of the flow direction will
Motor M2 is rotated clockwise.When VT2 and VT3 is turned on, electric current passes through motor M2 from right to left from positive source through VT3,
Then power cathode is returned to by VT2 again, the electric current of the flow direction rotates counterclockwise motor M2.Motor is in running
In, forward-reverse detection unit detects motor positive and inverse in signal sample circuit, represents motor just if progress signal is detected as
Turn, be detected as backing signal then motor reversal.Voltage detection unit and current detecting unit will be examined in real time in signal sample circuit
The size of measured motor voltage and current, and detection signal is passed to the ADC of dsp controller, dsp controller is to signal point
Analysis is after processing compared with setting range, if the current value and magnitude of voltage are higher or lower than the scope, dsp controller controls
Contactor K1 coil blackouts, contactor K1 normally opened contacts disconnect, and prevent driver and motor damage.
Claims (4)
- A kind of 1. mining traction locomotive DC motor driver, it is characterised in that：Including main circuit and control circuit, the main electricity Road includes dc source, air switch, charging resistor, filter capacitor, H bridges chopper circuit, the direct current generator being sequentially connected in series, described Control circuit includes dsp controller, IGBT drive circuit, signal sample circuit and contactor, the signal sample circuit it is defeated Entering end with main circuit to be connected, the output end of signal sample circuit is connected with dsp controller, dsp controller and IGBT drive circuit, Contactor is connected, and IGBT drive circuit is connected with H bridge chopper circuits, and the normally opened contact of the contactor is attempted by charging resistor two End.
- 2. mining traction locomotive DC motor driver according to claim 1, it is characterised in that：The signal sampling electricity Road includes voltage detection unit, current detecting unit, speed detection unit, forward-reverse detection unit, the voltage detecting list Member is attempted by both ends of filter capacitor, and the output end of voltage detection unit is connected with dsp controller, and current detecting unit is serially connected in master In circuit, the signal output part of current detecting unit is connected with dsp controller, speed detection unit, forward-reverse detection unit Input be connected with direct current generator, speed detection unit, the output end of forward-reverse detection unit are connected with dsp controller.
- 3. mining traction locomotive DC motor driver according to claim 1, it is characterised in that：The control circuit is also Including accessory power supply, accessory power supply input is terminated between air switch and charging resistor, and output end and the DSP of accessory power supply are controlled Device processed is connected.
- 4. mining traction locomotive DC motor driver according to claim 1, it is characterised in that：The control circuit is also Including RS485 communication modules, dsp controller is connected with RS485 communication modules, is realized by RS485 communication modules and host computer Communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720552081.5U CN206743147U (en) | 2017-05-18 | 2017-05-18 | A kind of mining traction locomotive DC motor driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720552081.5U CN206743147U (en) | 2017-05-18 | 2017-05-18 | A kind of mining traction locomotive DC motor driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206743147U true CN206743147U (en) | 2017-12-12 |
Family
ID=60566894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720552081.5U Expired - Fee Related CN206743147U (en) | 2017-05-18 | 2017-05-18 | A kind of mining traction locomotive DC motor driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206743147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601637A (en) * | 2019-09-30 | 2019-12-20 | 重庆虎溪电机工业有限责任公司 | Disc type motor driving power generation controller |
-
2017
- 2017-05-18 CN CN201720552081.5U patent/CN206743147U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601637A (en) * | 2019-09-30 | 2019-12-20 | 重庆虎溪电机工业有限责任公司 | Disc type motor driving power generation controller |
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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: 20171212 Termination date: 20180518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |