CN206756919U - Voltage detecting system - Google Patents
Voltage detecting system Download PDFInfo
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- CN206756919U CN206756919U CN201720561722.3U CN201720561722U CN206756919U CN 206756919 U CN206756919 U CN 206756919U CN 201720561722 U CN201720561722 U CN 201720561722U CN 206756919 U CN206756919 U CN 206756919U
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- resistor
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- voltage
- voltage detection
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- 239000003990 capacitor Substances 0.000 claims abstract description 63
- 238000001514 detection method Methods 0.000 claims abstract description 42
- 239000002131 composite material Substances 0.000 claims description 20
- 230000003287 optical effect Effects 0.000 claims description 20
- 239000000178 monomer Substances 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- Measurement Of Current Or Voltage (AREA)
Abstract
It the utility model is related to a kind of voltage detecting system.The voltage detecting system includes：First resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, precision voltage regulator and photo-coupler.Detected for overvoltage, when super capacitor group voltage to be measured is normal, output end output high level.When the voltage of super capacitor group to be measured is more than a particular voltage level, photo-coupler conducting, now output end output low level.For under-voltage detection, when super capacitor group voltage to be measured is normal, output end output high level.When the voltage of super capacitor group to be measured is less than another particular voltage level, photo-coupler conducting, now output end output low level.Voltage detecting system of the present utility model can detect over-pressed and under-voltage simultaneously.
Description
Technical Field
The utility model relates to a wind power generation becomes oar technical field of system, in particular to voltage detection system.
Background
The pitch system is an important component of the wind power generator.
At present, a backup power supply of a variable pitch system mainly comprises a super capacitor and a storage battery. The super capacitor is generally formed by connecting a plurality of super capacitor units in series.
In order to ensure the normal operation of the variable pitch system, overvoltage detection and undervoltage detection are required to be carried out on the super capacitor monomer. However, the existing overvoltage detection and undervoltage detection respectively use different circuits for detection, and the same circuit cannot detect overvoltage and undervoltage simultaneously.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a voltage detection system can detect excessive pressure and under-voltage simultaneously.
The embodiment of the utility model provides a pair of voltage detection system, include: the device comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a precision voltage regulator and an optical coupler, wherein one end of the first resistor, one end of the third resistor and one end of the fourth resistor are respectively connected with one end of a super capacitor group to be tested; one end of the second resistor, one end of the fifth resistor and the anode of the precision voltage-stabilizing source are respectively connected with the other end of the super capacitor group to be tested; the other end of the first resistor is connected with the other end of the second resistor; the other end of the fourth resistor is connected with the other end of the fifth resistor; the cathode of the precise voltage-stabilizing source is connected with the other end of the third resistor; the reference end of the precision voltage-stabilizing source is connected with the other end of the first resistor; the anode of the light emitting diode in the optical coupler is connected with the other end of the third resistor; the cathode of the light emitting diode in the optical coupler is connected with the other end of the fourth resistor; the collector of the phototriode in the optical coupler is connected with a power supply; and an emitter of a phototriode in the optical coupler is grounded through a sixth resistor, wherein the emitter of the phototriode in the optical coupler is used for outputting a voltage detection signal.
Optionally, the voltage detection system further includes: the circuit comprises a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a PNP triode, a composite triode and a rectifier diode, wherein one end of the eighth resistor, one end of the eleventh resistor and one end of the twelfth resistor are respectively connected with the other end of the to-be-tested super capacitor group; an emitting electrode of the PNP type triode and one end of a tenth resistor are respectively connected with one end of the super capacitor group to be tested; the base electrode of the PNP type triode is connected with the cathode of the precision voltage-stabilizing source; the collector of the PNP type triode is connected with the other end of the eighth resistor through the seventh resistor; the other end of the eighth resistor is connected with the base electrode of the composite triode through the ninth resistor; the collector of the compound triode is connected with the other end of the tenth resistor; the other end of the eleventh resistor and the other end of the twelfth resistor are respectively connected with an emitting electrode of the composite triode; the anode and the cathode of the rectifier diode are respectively and correspondingly connected with the emitter and the collector of the composite triode.
Optionally, the voltage detection system further includes: the base electrode of the NPN type triode is connected with the emitting electrode of the composite triode; the collector of the NPN type triode is connected with the other end of the eighth resistor; and the emitter of the NPN type triode is connected with the other end of the super capacitor group to be tested.
Optionally, the super capacitor group to be tested comprises a plurality of super capacitor monomers connected in series; the voltage detection system further includes: a plurality of resistors; and the resistors are connected in parallel with each super capacitor monomer in the super capacitor group to be tested in a one-to-one correspondence manner.
Optionally, the voltage detection system further includes: and the resistor is connected with the super capacitor group to be tested in parallel.
The embodiment of the utility model provides a voltage detection system can detect excessive pressure and under-voltage simultaneously.
Drawings
Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of a first voltage detection system according to an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of a second voltage detection system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third voltage detection system according to an embodiment of the present invention;
fig. 4 shows a schematic structural diagram of a fourth voltage detection system according to an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a fifth voltage detection system according to an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention, but are not intended to limit the scope of the invention, i.e., the invention is not limited to the described embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "bottom", "top", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like 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 also 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; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Fig. 1 shows a schematic structural diagram of a first voltage detection system according to an embodiment of the present invention. It may include: a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a precision voltage regulator and an optical coupler,
the embodiment of the utility model provides an in the super capacitor group that awaits measuring contains the three super capacitor monomer of establishing ties, is super capacitor monomer one, super capacitor monomer two and super capacitor monomer three respectively.
It should be noted that, in practical application, the number of the super capacitor units included in the super capacitor group to be tested is not limited to three.
The embodiment of the utility model provides an use the super capacitor group that awaits measuring to contain three super capacitor monomer and explain as the example, only do the utility model discloses a concrete example to do not constitute the pair the utility model discloses a limit.
One end of the first resistor, one end of the third resistor and one end of the fourth resistor are respectively connected with one end of the super capacitor group to be tested.
One end of the second resistor, one end of the fifth resistor and the anode of the precise voltage-stabilizing source are respectively connected with the other end of the super capacitor bank to be tested.
The other end of the first resistor is connected with the other end of the second resistor.
The other end of the fourth resistor is connected with the other end of the fifth resistor.
And the cathode of the precise voltage-stabilizing source is connected with the other end of the third resistor.
And the reference end of the precision voltage-stabilizing source is connected with the other end of the first resistor.
The anode of the light emitting diode in the optical coupler is connected with the other end of the third resistor.
And the cathode of the light emitting diode in the optical coupler is connected with the other end of the fourth resistor.
The collector of the phototriode in the optical coupler is connected with a power supply.
And an emitter of a phototriode in the optical coupler is grounded through a sixth resistor, wherein the emitter of the phototriode in the optical coupler is used for outputting a voltage detection signal.
For overvoltage detection, when the voltage of the super capacitor bank to be detected is normal, the output end outputs high level. When the voltage of the super capacitor bank to be tested exceeds a specific voltage value, the optical coupler is conducted, and the output end outputs a low level at the moment.
For undervoltage detection, when the voltage of the super capacitor bank to be detected is normal, the output end outputs a high level. When the voltage of the super capacitor group to be tested is lower than another specific voltage value, the optical coupler is conducted, and the output end outputs low level at the moment.
Specifically, when the output end outputs a low level, the super capacitor bank to be tested is required to be comprehensively judged by combining the charging voltage of the super capacitor bank to be tested when the super capacitor bank to be tested is overvoltage or undervoltage.
The embodiment of the utility model provides a voltage detection system can detect excessive pressure and under-voltage simultaneously.
Fig. 2 shows a schematic structural diagram of a second voltage detection system according to an embodiment of the present invention. In the embodiment of fig. 2 of the present invention, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a PNP transistor, a composite transistor, and a rectifying diode are added to the embodiment of fig. 1, wherein,
one end of the eighth resistor, one end of the eleventh resistor and one end of the twelfth resistor are respectively connected with the other end of the super capacitor group to be tested.
And an emitting electrode of the PNP type triode and one end of the tenth resistor are respectively connected with one end of the super capacitor group to be tested.
The base electrode of the PNP type triode is connected with the cathode of the precision voltage-stabilizing source.
And the collector of the PNP type triode is connected with the other end of the eighth resistor through the seventh resistor.
The other end of the eighth resistor is connected with the base electrode of the composite triode through a ninth resistor.
And the collector of the compound triode is connected with the other end of the tenth resistor.
The other end of the eleventh resistor and the other end of the twelfth resistor are respectively connected with the emitting electrode of the composite triode.
The anode and the cathode of the rectifier diode are respectively and correspondingly connected with the emitter and the collector of the composite triode.
When the super capacitor group to be tested is in overvoltage, the PNP type triode is conducted, the composite triode is conducted, and active voltage sharing of the super capacitor group to be tested is achieved.
The embodiment of the utility model provides a voltage detection system can detect excessive pressure and under-voltage simultaneously to can take the initiative voltage-sharing when the super capacitor group overvoltage that awaits measuring.
Fig. 3 shows a schematic structural diagram of a third voltage detection system according to an embodiment of the present invention. The embodiment shown in fig. 3 of the present invention is based on the embodiment shown in fig. 2, and is added with: an NPN type triode, wherein,
the base electrode of the NPN type triode is connected with the emitting electrode of the composite triode.
And the collector of the NPN type triode is connected with the other end of the eighth resistor.
And the emitter of the NPN type triode is connected with the other end of the super capacitor group to be tested.
When the super capacitor group to be tested is in overvoltage, the PNP type triode is conducted, the composite triode is conducted, and active voltage sharing of the super capacitor group to be tested is achieved. And the NPN type triode can control the conduction current intensity of the composite triode.
The embodiment of the utility model provides a voltage detection system can detect excessive pressure and under-voltage simultaneously to can take the initiative voltage-sharing when the super capacitor group overvoltage that awaits measuring. And the NPN type triode can control the conduction current intensity of the composite triode.
Fig. 4 shows a schematic structural diagram of a fourth voltage detection system according to an embodiment of the present invention. The utility model discloses the embodiment that figure 4 shows increases thirteenth resistance, fourteenth resistance and fifteenth resistance on the basis of the embodiment that figure 3 shows, and wherein, thirteenth resistance and super capacitor monomer one are parallelly connected, and fourteenth resistance and super capacitor monomer two are parallelly connected, and fifteenth resistance and super capacitor monomer three are parallelly connected. Namely, a plurality of resistors are added, and the plurality of resistors are connected in parallel with each super capacitor monomer in the super capacitor group to be detected in a one-to-one correspondence manner.
Of course, the thirteenth resistor, the fourteenth resistor and the fifteenth resistor of the embodiment of the present invention may also be added on the basis of fig. 1 or fig. 2.
The embodiment of the utility model provides a voltage detection system can detect excessive pressure and under-voltage simultaneously to can carry out the voltage-sharing passively to each super capacitor monomer that awaits measuring among the super capacitor group that awaits measuring.
Fig. 5 shows a schematic structural diagram of a fifth voltage detection system according to an embodiment of the present invention. The utility model discloses the embodiment shown in FIG. 5 increases sixteenth resistance on the basis of the embodiment shown in FIG. 4, wherein, the sixteenth resistance is parallelly connected with the super capacitor group that awaits measuring. Namely, the resistance connected in parallel with the super capacitor bank to be tested is increased.
Of course, the sixteenth resistor of the embodiment of the present invention may also be added on the basis of fig. 1, 2 or 3.
The embodiment of the utility model provides a voltage detection system can detect excessive pressure and under-voltage simultaneously to can carry out passive voltage-sharing between the super capacitor group that awaits measuring.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (5)
1. A voltage detection system, comprising: a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a precision voltage regulator and an optical coupler,
one end of the first resistor, one end of the third resistor and one end of the fourth resistor are respectively connected with one end of the super capacitor group to be tested;
one end of the second resistor, one end of the fifth resistor and the anode of the precision voltage-stabilizing source are respectively connected with the other end of the super capacitor group to be tested;
the other end of the first resistor is connected with the other end of the second resistor;
the other end of the fourth resistor is connected with the other end of the fifth resistor;
the cathode of the precision voltage-stabilizing source is connected with the other end of the third resistor;
the reference end of the precision voltage-stabilizing source is connected with the other end of the first resistor;
the anode of the light emitting diode in the optical coupler is connected with the other end of the third resistor;
the cathode of the light emitting diode in the optical coupler is connected with the other end of the fourth resistor;
the collector of the phototriode in the optical coupler is connected with a power supply;
and an emitter of a phototriode in the optical coupler is grounded through the sixth resistor, wherein the emitter of the phototriode in the optical coupler is used for outputting a voltage detection signal.
2. The voltage detection system of claim 1, further comprising: a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a PNP type triode, a composite triode and a rectifier diode, wherein,
one end of the eighth resistor, one end of the eleventh resistor and one end of the twelfth resistor are respectively connected with the other end of the to-be-tested super capacitor bank;
an emitting electrode of the PNP type triode and one end of the tenth resistor are respectively connected with one end of the super capacitor group to be tested;
the base electrode of the PNP type triode is connected with the cathode of the precision voltage-stabilizing source;
the collector of the PNP type triode is connected with the other end of the eighth resistor through the seventh resistor;
the other end of the eighth resistor is connected with the base electrode of the composite triode through the ninth resistor;
the collector of the composite triode is connected with the other end of the tenth resistor;
the other end of the eleventh resistor and the other end of the twelfth resistor are respectively connected with an emitting electrode of the composite triode;
and the anode and the cathode of the rectifier diode are respectively and correspondingly connected with the emitter and the collector of the composite triode.
3. The voltage detection system of claim 2, further comprising: an NPN type triode, wherein,
the base electrode of the NPN type triode is connected with the emitting electrode of the composite triode;
a collector of the NPN type triode is connected with the other end of the eighth resistor;
and the emitting electrode of the NPN type triode is connected with the other end of the super capacitor group to be tested.
4. The voltage detection system according to claim 1, wherein the set of supercapacitors under test comprises a plurality of series-connected supercapacitor cells; the voltage detection system further includes: a plurality of resistors; wherein,
the resistors are connected in parallel with each super capacitor monomer in the super capacitor group to be detected in a one-to-one correspondence mode.
5. The voltage detection system according to any one of claims 1 to 4, characterized in that the voltage detection system further comprises:
and the resistor is connected with the super capacitor group to be tested in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720561722.3U CN206756919U (en) | 2017-05-19 | 2017-05-19 | Voltage detecting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720561722.3U CN206756919U (en) | 2017-05-19 | 2017-05-19 | Voltage detecting system |
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| CN206756919U true CN206756919U (en) | 2017-12-15 |
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| CN201720561722.3U Active CN206756919U (en) | 2017-05-19 | 2017-05-19 | Voltage detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907715A (en) * | 2018-09-14 | 2020-03-24 | 通用电气公司 | System and method for monitoring a supercapacitor |
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- 2017-05-19 CN CN201720561722.3U patent/CN206756919U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907715A (en) * | 2018-09-14 | 2020-03-24 | 通用电气公司 | System and method for monitoring a supercapacitor |
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