CN112018875A - PLC uninterrupted power supply device of mining electric locomotive - Google Patents
PLC uninterrupted power supply device of mining electric locomotive Download PDFInfo
- Publication number
- CN112018875A CN112018875A CN202010876758.7A CN202010876758A CN112018875A CN 112018875 A CN112018875 A CN 112018875A CN 202010876758 A CN202010876758 A CN 202010876758A CN 112018875 A CN112018875 A CN 112018875A
- Authority
- CN
- China
- Prior art keywords
- plc
- power supply
- direct current
- battery
- electric locomotive
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- 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
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
Abstract
The invention relates to a PLC uninterrupted power supply device of a mining electric locomotive, which comprises: the system comprises a direct current power supply, a PLC (programmable logic controller), a battery and a relay, wherein the PLC is used for controlling the electric locomotive; when the direct current power supply is switched on, the direct current power supply supplies power for the PLC and charges the battery, and when the direct current power supply is switched off, the relay controls the battery to supply power for the PLC. When the overhead line of the electric locomotive is powered off, the power supply is provided for the PLC through the battery, and the continuous work of the PLC is realized.
Description
Technical Field
The invention relates to the technical field of electric locomotives, in particular to a PLC uninterrupted power supply device of a mining electric locomotive.
Background
At present, when the electric locomotive runs to a drop shaft, an unloading station and the like and needs to drop a pantograph to cut off power, the PLC of the electric locomotive can be cut off power, and the electric locomotive cannot be controlled by the PLC. The PLC means a Programmable Logic Controller (PLC).
Disclosure of Invention
Based on the above, the invention aims to provide the PLC uninterruptible power supply device for the mining electric locomotive, which is used for supplying power to the PLC when the electric locomotive is powered off, so that the uninterrupted work of the PLC is realized.
In order to achieve the purpose, the invention provides the following scheme:
a mining electric locomotive PLC uninterrupted power source device, the device includes: the system comprises a direct current power supply, a PLC, a battery and a relay, wherein the PLC is used for controlling the electric locomotive;
when the direct current power supply is switched on, the direct current power supply supplies power for the PLC and charges the battery, and when the direct current power supply is switched off, the relay controls the battery to supply power for the PLC.
Optionally, the relay comprises a first relay and a second relay; the first relay comprises a first coil and a first normally open contact, and the second relay comprises a second coil and a first normally closed contact a;
the anode of the direct current power supply is respectively connected with one end of an electric locomotive lighting circuit, one end of a second coil and one end of the PLC, and the other end of the electric locomotive lighting circuit, the other end of the second coil and the other end of the PLC are all connected with the cathode of the direct current power supply;
the negative electrode of the direct-current power supply is also connected with one end of a first normally-open contact, the other end of the first normally-open contact is respectively connected with the negative electrode of the battery and one end of a first coil, the other end of the first coil is connected with one end of a first normally-closed contact, and the other end of the first normally-closed contact is connected with the positive electrode of the battery;
when the direct current power supply is powered on, the first normally closed contact is closed, the first normally open contact is opened, and when the direct current power supply is powered off, the first normally closed contact is opened, and the first normally open contact is closed.
Optionally, the battery is formed by connecting two 12V storage batteries in series.
Optionally, the dc power voltage is 24V.
Optionally, an inverter is disposed between the dc power supply and the battery, the inverter converts dc power into 220V ac power, and the battery is charged by the 220V ac power.
Optionally, a first switch is disposed between the dc power supply and the PLC.
Optionally, the first switch is an air switch.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention discloses a PLC uninterrupted power supply device of a mining electric locomotive, which comprises: the system comprises a direct current power supply, a PLC, a battery and a relay, wherein the PLC is used for controlling the electric locomotive; when the direct current power supply is switched on, the direct current power supply supplies power for the PLC and charges the battery, and when the direct current power supply is switched off, the relay controls the battery to supply power for the PLC. The invention provides power for the PLC when the electric locomotive is powered off, thereby realizing the uninterrupted work of the PLC.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a PLC uninterruptible power supply device of a mining electric locomotive according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a PLC uninterrupted power supply device for a mining electric locomotive, which supplies power to a PLC when the electric locomotive is powered off, and realizes the uninterrupted work of the PLC.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the invention discloses a structural schematic diagram of a PLC uninterruptible power supply device of a mining electric locomotive. The device comprises: the device comprises a direct-current power supply V1, a PLC, a battery V2 and a relay, wherein the PLC is used for controlling the electric locomotive.
When the direct current power supply V1 is switched on, the direct current power supply V1 supplies power to the PLC and charges the battery V2, and when the direct current power supply V1 is switched off, the relay controls the battery V2 to supply power to the PLC.
The relay comprises a first relay and a second relay; the first relay comprises a first coil KA1 and a first normally open contact KA1a, and the second relay comprises a second coil KA2 and a first normally closed contact KA2 a;
the positive electrode of the direct-current power supply V1 is respectively connected with one end of an electric locomotive lighting circuit, one end of a second coil KA2 and one end of the PLC, and the other end of the electric locomotive lighting circuit, the other end of the second coil KA2 and the other end of the PLC are respectively connected with the negative electrode of the direct-current power supply V1;
the negative electrode of the direct-current power supply V1 is also connected with one end of the first normally-open contact KA1a, the other end of the first normally-open contact KA1a is respectively connected with the negative electrode of the battery and one end of the first coil KA1, the other end of the first coil KA1 is connected with one end of the first normally-closed contact KA2a, and the other end of the first normally-closed contact KA2a is connected with the positive electrode of the battery;
when DC power supply V1 circular telegram, first normally closed contact KA2a is closed, first normally open contact KA1a disconnection, when DC power supply V1 outage, first normally closed contact KA2a disconnection, first normally open contact KA1a is closed.
In this embodiment, the module power of the PLC control program of the downhole electric locomotive needs 24V dc. The voltage of an overhead line of the underground electric locomotive is 550V direct current, the direct current voltage led out from the pantograph by utilizing the contact of the pantograph and the overhead line is 550V, the 550V direct current voltage is changed into 24V direct current voltage through a direct current converter, namely the voltage of a direct current power supply of the PLC of the electric locomotive is 24V, and the illumination and the horn of the electric locomotive both need 24V direct current power supply V1.
When the electric locomotive passes through a drop shaft and an unloading station, when the pantograph is required to descend, the direct-current power supply V1 is powered off, and the battery V2 is controlled by the first relay and the second relay to supply power to the PLC, the lighting circuit and the horn of the electric locomotive.
The battery V2 is formed by connecting two 12V storage batteries in series.
An inverter is provided between the 24V dc power supply V1 and the battery V2, and when the 24V dc power supply V1 is energized, the 24V dc power is converted into 220V ac power by the inverter, and the battery V2 is charged with the 220V ac power.
A first switch S1 is provided between the dc power supply V1 and the PLC, and the first switch S1 is an air switch. A second switch S2 is arranged between the positive electrode of the battery V2 and the positive electrode of the direct current power supply V1, and a third switch S3 is arranged between the negative electrode of the direct current power supply V1 and an electric locomotive lighting circuit.
According to the invention, when the overhead line of the electric locomotive is powered off, the power is supplied to the PLC through the battery, so that the continuous work of the PLC is realized, and the remote control of the electric locomotive is realized through the PLC when the overhead line is powered off.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist in understanding the core concepts of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. The utility model provides an electric mining locomotive PLC uninterrupted power source device which characterized in that, the device includes: the system comprises a direct current power supply, a PLC, a battery and a relay, wherein the PLC is used for controlling the electric locomotive;
when the direct current power supply is switched on, the direct current power supply supplies power for the PLC and charges the battery, and when the direct current power supply is switched off, the relay controls the battery to supply power for the PLC.
2. The PLC uninterruptible power supply unit for a mining electric locomotive according to claim 1, wherein the relay includes a first relay and a second relay; the first relay comprises a first coil and a first normally open contact, and the second relay comprises a second coil and a first normally closed contact;
the anode of the direct current power supply is respectively connected with one end of an electric locomotive lighting circuit, one end of a second coil and one end of the PLC, and the other end of the electric locomotive lighting circuit, the other end of the second coil and the other end of the PLC are all connected with the cathode of the direct current power supply;
the negative electrode of the direct-current power supply is also connected with one end of a first normally-open contact, the other end of the first normally-open contact is respectively connected with the negative electrode of the battery and one end of a first coil, the other end of the first coil is connected with one end of a first normally-closed contact, and the other end of the first normally-closed contact is connected with the positive electrode of the battery;
when the direct current power supply is powered on, the first normally closed contact is closed, the first normally open contact is opened, and when the direct current power supply is powered off, the first normally closed contact is opened, and the first normally open contact is closed.
3. The PLC ups device of claim 1, wherein the battery is two 12V batteries connected in series.
4. The PLC ups device of claim 1, wherein the dc supply voltage is 24V.
5. The PLC uninterruptible power supply device for the mining electric locomotive according to claim 1, wherein an inverter is arranged between the direct current power supply and the battery, direct current is converted into 220V alternating current through the inverter, and the battery is charged through the 220V alternating current.
6. The PLC uninterruptible power supply unit for a mining electric locomotive according to claim 1, wherein a first switch is provided between the dc power supply and the PLC.
7. The PLC ups device of claim 6, wherein the first switch is an air switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010876758.7A CN112018875A (en) | 2020-08-27 | 2020-08-27 | PLC uninterrupted power supply device of mining electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010876758.7A CN112018875A (en) | 2020-08-27 | 2020-08-27 | PLC uninterrupted power supply device of mining electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112018875A true CN112018875A (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010876758.7A Pending CN112018875A (en) | 2020-08-27 | 2020-08-27 | PLC uninterrupted power supply device of mining electric locomotive |
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| Country | Link |
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| CN (1) | CN112018875A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100019680A1 (en) * | 2008-07-23 | 2010-01-28 | Ge Investment Co., Ltd. | Power supply system, wireless communication system and illumination system |
| CN202541529U (en) * | 2012-04-10 | 2012-11-21 | 烟台市牟金矿业有限公司 | Mining electric locomotive safety device |
| CN203218969U (en) * | 2013-03-18 | 2013-09-25 | 南京南汽专用车有限公司 | Uninterrupted power supply (UPS) circuit for vehicle inverter and commercial power |
| CN105305606A (en) * | 2015-11-25 | 2016-02-03 | 江永县元杰科技有限公司 | Self-powered monitoring device in power outage |
| CN205846858U (en) * | 2016-07-28 | 2016-12-28 | 华晶精密制造股份有限公司 | A kind of uninterrupted voltage-stabilizing power supply system of PLC |
-
2020
- 2020-08-27 CN CN202010876758.7A patent/CN112018875A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100019680A1 (en) * | 2008-07-23 | 2010-01-28 | Ge Investment Co., Ltd. | Power supply system, wireless communication system and illumination system |
| CN202541529U (en) * | 2012-04-10 | 2012-11-21 | 烟台市牟金矿业有限公司 | Mining electric locomotive safety device |
| CN203218969U (en) * | 2013-03-18 | 2013-09-25 | 南京南汽专用车有限公司 | Uninterrupted power supply (UPS) circuit for vehicle inverter and commercial power |
| CN105305606A (en) * | 2015-11-25 | 2016-02-03 | 江永县元杰科技有限公司 | Self-powered monitoring device in power outage |
| CN205846858U (en) * | 2016-07-28 | 2016-12-28 | 华晶精密制造股份有限公司 | A kind of uninterrupted voltage-stabilizing power supply system of PLC |
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Application publication date: 20201201 |