CN110635685A - Wind energy conversion power supply device for urban rail tunnel - Google Patents
Wind energy conversion power supply device for urban rail tunnel Download PDFInfo
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- CN110635685A CN110635685A CN201911027131.8A CN201911027131A CN110635685A CN 110635685 A CN110635685 A CN 110635685A CN 201911027131 A CN201911027131 A CN 201911027131A CN 110635685 A CN110635685 A CN 110635685A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 41
- 238000005070 sampling Methods 0.000 claims abstract description 25
- 238000004146 energy storage Methods 0.000 claims abstract description 13
- 230000003750 conditioning effect Effects 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 238000007600 charging Methods 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000005670 electromagnetic radiation Effects 0.000 description 4
- 238000010280 constant potential charging Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010277 constant-current charging Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
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- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
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Abstract
The invention discloses a wind energy conversion power supply device for an urban rail tunnel, which comprises: stray current sampling circuit module, including J pin, C pin and G pin, and J pin connection structure reinforcing bar, reference voltage is connected to the C pin, and the track is connected to the G pin: the energy conversion module comprises a wind driven generator which is constructed to generate voltage for supplying the stray current sampling circuit module to work; the conditioning circuit module is coupled with the energy conversion module to receive the single-pulse voltage signal and convert the single-pulse voltage signal into a stable direct-current voltage signal; the energy storage circuit module is coupled with the conditioning circuit module to store the direct-current voltage signal; the voltage-stabilizing power supply control module is coupled with the energy storage circuit module, controls the energy storage circuit module to release a stable direct current power supply, and the stray current sampling circuit module is coupled with the voltage-stabilizing power supply control module.
Description
Technical Field
The invention relates to the field of power supply equipment, in particular to an urban rail tunnel wind energy conversion power supply device.
Background
At present, urban rail transit becomes a part which is increasingly important in our lives, and stray current generated during the operation of the urban rail transit generates electrochemical corrosion on communication cables buried in soil around subways (or light rails), steel bars, steel pipes and other metal pipelines in interval tunnels, damages the strength of the metal pipelines and reduces the service life of the metal pipelines. The method has the advantages that stray current of the urban rail transit is automatically monitored, and the method has important significance for safe and reliable operation of the urban rail transit.
At present, the monitoring of stray current is generally realized by collecting an output signal of a reference electrode embedded in structural concrete, and a voltage signal of the reference electrode represents the intensity of the stray current; theoretical research and the actual operating condition in this field all show that there is certain relation also in the change of track voltage and stray current's intensity, and track voltage is bigger, and stray current is also bigger.
The electric energy power supply mode of the traditional stray current sensor is generally provided by an external power supply line, so that the application requirement of the sensor in a gradually developing stray current monitoring system is difficult to meet, and the development of the sensor to intellectualization and miniaturization is also restricted. The sensor adopting external power supply has the following problems and hidden dangers: the first sensor with external power supply has large volume and complex installation, and needs to be installed nearby on the tunnel wall or the side wall of the viaduct; secondly, an extra power supply module is needed for an external power supply sensor, the power supply circuit is long, and the interference of electromagnetic radiation is large; thirdly, the sensors powered externally need more power supply line cables which are generally copper cables, so that the construction cost is high; fourth, externally powered sensors have restricted the sensor's development towards miniaturization and intelligence. Therefore, at present, many organizations at home and abroad are dedicated to research on a system which can convert a track voltage signal into a power supply of a sensor and store the power supply, and a completely new stray current sensor is used for automatically monitoring and reporting stray current in an urban track traffic system in real time.
Disclosure of Invention
The invention aims to solve at least one of the problems in the prior art and provides a wind energy conversion power supply device for an urban rail tunnel, which can effectively utilize tunnel wind energy to generate electric energy, has small volume, convenient installation, low cost and can monitor stray current in real time, and can not be interfered by electromagnetic radiation.
In order to achieve the above object, the present invention provides a wind energy conversion power supply device for an urban rail tunnel, comprising: stray current sampling circuit module, including J pin, C pin and G pin, just J pin connection structure reinforcing bar, reference voltage is connected to the C pin, the track is connected to the G pin: an energy conversion module comprising a wind generator configured to generate a voltage to supply operation of the stray current sampling circuit module; the conditioning circuit module is coupled with the energy conversion module to receive the single pulse voltage signal and convert the single pulse voltage signal into a stable direct current voltage signal; the energy storage circuit module is coupled with the conditioning circuit module to store the direct-current voltage signal; and the voltage-stabilizing power supply control module is coupled with the energy storage circuit module, wherein the voltage-stabilizing power supply control module controls the energy storage circuit module to release a stable direct-current power supply, and the stray current sampling circuit module is coupled with the voltage-stabilizing power supply control module.
In the technical scheme, an energy conversion module generates a voltage for supplying the stray current sampling circuit module to work, the energy conversion module is coupled to receive the single pulse voltage signal, the single pulse voltage signal is converted into a stable direct current voltage signal and stored in an energy storage circuit module, and then a voltage stabilization power supply control module controls the energy storage circuit module to release a stable direct current power supply for supplying the stray current sampling circuit module to work; this feeding mechanism utilizes aerogenerator to change wind energy into the electric energy, has realized the power supply to stray current collection module, and this feeding mechanism is small moreover, simple to operate, can not receive electromagnetic radiation interference, and is with low costs, can real-time supervision stray current.
In addition, the urban rail tunnel wind energy conversion power supply device provided by the invention can also have the following technical characteristics:
further, the wind power generator includes a first lead, a second lead, and a third lead, and the energy conversion module further includes: and the first lead, the second lead and the third lead are sequentially connected between the first diode and the fourth diode, between the second diode and the fifth diode and between the third diode and the sixth diode.
Further, the energy conversion module further comprises a capacitor connected in parallel to two ends of the third diode and the sixth diode connected in series.
Preferably, the device further comprises a control module electrically connected with the stray current sampling circuit module.
Preferably, the stray current detection circuit further comprises a communication module, wherein the communication module is electrically connected with the control module and used for uploading data collected by the stray current sampling circuit module to a server.
The urban rail tunnel wind energy conversion power supply device has the following additional technical characteristics: the energy conversion module is arranged to convert wind energy in the tunnel into electric energy so as to provide stable working conditions for other working modules; the control module is arranged to perform corresponding operation on the acquired reference electrode signal and the track voltage signal digital quantity, and data are uploaded to a server of the monitoring system through the communication module.
Drawings
FIG. 1 is a wind energy conversion power supply device for an urban rail tunnel;
FIG. 2 is a circuit diagram of an energy conversion module;
FIG. 3 is a block circuit diagram of a filter circuit;
FIG. 4 is a circuit diagram of a charging circuit module;
FIG. 5 is a circuit diagram of a regulated power supply control module;
FIG. 6 is a circuit diagram of a master control module;
fig. 7 is a circuit diagram of a communication module.
In the figure, an energy conversion module 10; a conditioning circuit module 20; a tank circuit module 30; a voltage stabilizing power supply module 40; a stray current sampling circuit module 50; a control module 60; a communication module 70.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in the figures 1-4 of the drawings,
the invention relates to a wind energy conversion power supply device for an urban rail tunnel, which comprises: the stray current detection circuit comprises a stray current sampling circuit module 50, an energy conversion module 10, a conditioning circuit module 20, an energy storage circuit module 30 and a voltage-stabilizing power supply module 40.
Stray current sampling circuit module 50, including J pin, C pin and G pin, just J pin connection structure reinforcing bar, reference voltage is connected to the C pin, the track is connected to the G pin:
the energy conversion module 10, including a wind power generator, is configured to generate a voltage that supplies the stray current sampling circuit module 50 to operate;
a conditioning circuit module 20 coupled to the energy conversion module 10 to receive the single pulse voltage signal and convert the single pulse voltage signal into a stable dc voltage signal;
a tank circuit module 30 coupled to the conditioning circuit module 20 for storing the dc voltage signal; and
and a regulated power supply module 40 coupled to the tank circuit module 30, wherein the regulated power supply module 40 controls the tank circuit module 30 to release a regulated dc power, and the stray current sampling circuit module 50 is coupled to the regulated power supply module 40.
It can be understood that, the energy conversion module 10 generates a voltage for supplying the stray current sampling circuit module 50 to operate, and the energy conversion module 10 is coupled to receive the single pulse voltage signal, convert the single pulse voltage signal into a stable dc voltage signal and store the stable dc voltage signal in the energy storage circuit module 30, and then the regulated power supply module 40 controls the energy storage circuit module 30 to release a stable dc power supply for the stray current sampling circuit module 50 to operate; this feeding mechanism utilizes aerogenerator to change wind energy into the electric energy, has realized the power supply to stray current collection module, and this feeding mechanism is small moreover, simple to operate, can not receive electromagnetic radiation interference, and is with low costs, can real-time supervision stray current.
In one embodiment of the present invention, the wind power generator includes a first lead, a second lead and a third lead, and the energy conversion module 10 further includes: the energy conversion module 10 further comprises a capacitor which is connected in parallel at two ends of the third diode and the sixth diode in series. Specifically, the energy conversion module 10 converts the tunnel wind energy into a stable voltage for the operation of the stray current sampling circuit module 50, and includes an ac wind power generator and a second rectifying circuit, where the second rectifying circuit rectifies the ac power output by the wind power generator into a unidirectional pulsating voltage by using a rectifying element with unidirectional conductive performance, but the unidirectional pulsating voltage contains a large pulsating component and is also not an ideal dc voltage.
In an embodiment of the present invention, the monitoring system further includes a control module 60, which is electrically connected to the stray current sampling circuit module 50, and performs corresponding operations on the collected reference electrode signal and track voltage signal digital quantities, and uploads the data to a server of the monitoring system through a communication module 70.
In an embodiment of the present invention, the apparatus further includes a communication module 70, where the communication module 70 is electrically connected to the control module 60, and is configured to upload data collected by the stray current sampling circuit module 50 to a server.
The energy conversion module 10 mainly comprises a voltage dependent resistor Y1 and a rectifier diode D1; a self-recovery fuse R1 is designed in front of the piezoresistor Y1 to prevent the loop from overcurrent; the rectifying diode D1 rectifies the rail voltage with alternating positive and negative into unidirectional pulsating voltage, but the unidirectional pulsating voltage contains large pulsating components and is not ideal direct-current voltage, and the rear end of the rectifying diode D1 is provided with a filter capacitor C8 for primarily filtering the pulsating components.
The filter circuit module mainly comprises a capacitor and an inductor, and is used for realizing an LC filter circuit, further filtering out the pulsation component of the front-end circuit and outputting a stable direct-current power supply to the charging circuit.
The charging circuit module mainly comprises a power supply manager chip IC1 and a lithium battery BT 1; the model number of the IC1 is CN3791, which is a PWM step-down single lithium battery charging management integrated circuit with trickle, constant current and constant voltage charging modes. The constant current charging current is set by a current sense resistor RCS between the CSP pin and the BAT pin. In the constant voltage charging mode, the constant voltage charging voltage is 4.2V, and the precision is 1%; CN3791 tracks the maximum power point of the tunnel wind energy by adopting a constant voltage method, the voltage of the MPPT pin at the maximum power point tracking end is modulated to be 1.205V, and the maximum power point of the tunnel wind energy can be tracked by matching with a voltage division network formed by two resistors (R4 and R6 in figure 4) outside a sheet; the maximum power point voltage is determined by: VMPPT ═ 1.205 × (1+ R4/R6).
The voltage-stabilizing power supply control module mainly comprises a DC-DC booster circuit taking FP6291LR-G1 as a core; the power supply of the FP6291LR-G1 can be manually controlled to be switched on or switched off, and can also be controlled to be switched on or off by a main control module;
the main control module mainly comprises a single chip microcomputer STC15W102SOP8, detects the voltage condition and the button state of the lithium battery in real time, and controls the power supply of the voltage-stabilizing power supply control module to be switched on or switched off; when the discharge of the lithium battery is lower than 20% of the electric quantity, the main control module controls the electronic switching tube Q2 to cut off the power supply of the voltage-stabilizing power supply module; when the lithium battery enters the charging mode again, the lithium battery control module controls the electronic switching tube Q2 to switch on the power supply of the voltage-stabilizing power supply module;
the communication module mainly comprises an RS485 integrated communication module TD301D485H-A, and an RS485 communication interface is constructed.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto. Those skilled in the art will appreciate that various features of the various embodiments of the invention described hereinabove may be omitted, added to, or combined in any manner, respectively. Moreover, simple modifications and structural modifications that are adaptive and functional to those skilled in the art are within the scope of the present invention.
Claims (7)
1. A wind energy conversion power supply device for an urban rail tunnel is characterized by comprising:
stray current sampling circuit module (50), including J pin, C pin and G pin, just J pin connection structure reinforcing bar, reference voltage is connected to the C pin, the track is connected to the G pin:
-an energy conversion module (10) comprising a wind generator configured to generate a voltage that supplies the stray current sampling circuit module (50) with operation;
a conditioning circuit module (20) coupled to the energy conversion module (10) to receive the single pulse voltage signal and convert the single pulse voltage signal into a stable direct current voltage signal;
a tank circuit module (30) coupled to the conditioning circuit module (20) to store the DC voltage signal; and
and the voltage-stabilizing power supply module (40) is coupled with the energy storage circuit module (30), wherein the voltage-stabilizing power supply module (40) controls the energy storage circuit module (30) to release stable direct current power, and the stray current sampling circuit module (50) is coupled with the voltage-stabilizing power supply module (40).
2. The urban rail tunnel wind energy conversion power supply device according to claim 1, wherein the wind driven generator comprises a first lead, a second lead and a third lead, and the energy conversion module (10) is composed of a voltage dependent resistor Y1 and a rectifier diode D1, and specifically comprises:
and the first lead, the second lead and the third lead are sequentially connected between the first diode and the fourth diode, between the second diode and the fifth diode and between the third diode and the sixth diode.
3. The urban rail tunnel wind energy conversion power supply device according to claim 2, wherein the energy conversion module (10) further comprises a capacitor connected in parallel across the series connection of the third diode and the sixth diode.
4. The urban rail tunnel wind energy conversion power supply device according to claim 1, further comprising a control module (60) electrically connected to the stray current sampling circuit module (50).
5. The urban rail tunnel wind energy conversion power supply device according to claim 4, further comprising a communication module (70), wherein the communication module (70) is electrically connected with the control module (60) and is used for uploading data collected by the stray current sampling circuit module (50) to a server.
6. The urban rail tunnel wind energy conversion power supply device according to claim 1, further comprising a charging module, wherein the charging module is composed of a power manager chip IC1 and a lithium battery BT 1.
7. The urban rail tunnel wind energy conversion power supply device according to claim 6, wherein the type of IC1 is CN 3791.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027131.8A CN110635685A (en) | 2019-10-27 | 2019-10-27 | Wind energy conversion power supply device for urban rail tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027131.8A CN110635685A (en) | 2019-10-27 | 2019-10-27 | Wind energy conversion power supply device for urban rail tunnel |
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| CN110635685A true CN110635685A (en) | 2019-12-31 |
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| CN201911027131.8A Withdrawn CN110635685A (en) | 2019-10-27 | 2019-10-27 | Wind energy conversion power supply device for urban rail tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757970A (en) * | 2021-01-11 | 2021-05-07 | 重庆中车长客轨道车辆有限公司 | Subway traction alternating current power supply system and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209545456U (en) * | 2019-01-30 | 2019-10-25 | 江苏广识电气有限公司 | Utilize the power supply device of railway voltage energy storage |
| CN209542701U (en) * | 2019-01-30 | 2019-10-25 | 江苏广识电气有限公司 | The stray current sensor of tunnel wind power power supply |
| CN209542700U (en) * | 2019-01-30 | 2019-10-25 | 江苏广识电气有限公司 | Utilize the signal-powered stray current sensor of railway voltage |
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2019
- 2019-10-27 CN CN201911027131.8A patent/CN110635685A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209545456U (en) * | 2019-01-30 | 2019-10-25 | 江苏广识电气有限公司 | Utilize the power supply device of railway voltage energy storage |
| CN209542701U (en) * | 2019-01-30 | 2019-10-25 | 江苏广识电气有限公司 | The stray current sensor of tunnel wind power power supply |
| CN209542700U (en) * | 2019-01-30 | 2019-10-25 | 江苏广识电气有限公司 | Utilize the signal-powered stray current sensor of railway voltage |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757970A (en) * | 2021-01-11 | 2021-05-07 | 重庆中车长客轨道车辆有限公司 | Subway traction alternating current power supply system and control method |
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