CN210985947U - Unidirectional power supply transformer set system - Google Patents
Unidirectional power supply transformer set system Download PDFInfo
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- CN210985947U CN210985947U CN202020046416.8U CN202020046416U CN210985947U CN 210985947 U CN210985947 U CN 210985947U CN 202020046416 U CN202020046416 U CN 202020046416U CN 210985947 U CN210985947 U CN 210985947U
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Abstract
The utility model relates to a transformer set system with unidirectional power supply, which comprises an autotransformer, a transformer; the isolation transformer processes the voltage of the power supply line to obtain a second voltage; the compensating transformer carries out transformation ratio on the second voltage to obtain a third voltage which is superposed with the first voltage, and the superposed voltage is output; and the control circuit processes and analyzes the input voltage of the autotransformer to control the compensation transformer to obtain the third voltage so as to adjust the output voltage of the compensation transformer. The utility model discloses a set up autotransformer, isolation transformer, compensating transformer and control circuit, this one-way power supply's transformer battery system is suitable for the environment below the height above sea level 5000m, and the reliability is high, and is small, the installation is simple, the consumption is little, and adopts this application technical scheme to reduce each cooperation device lectotype specification to reduce cost has realized one-way power supply.
Description
Technical Field
The utility model belongs to the technical field of the distribution network, concretely relates to transformer unit system of one-way power supply.
Background
In the related art, the transformer bank technology has high requirements on installation environment, low reliability and complex installation, which leads to high cost.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to overcome the deficiencies in the prior art, and provides a transformer set system with unidirectional power supply to solve the problems of low reliability, complex installation and high cost of the existing transformer.
In order to realize the above purpose, the utility model adopts the following technical scheme: a unidirectionally powered transformer bank system, comprising:
the autotransformer is used for carrying out voltage boosting transformation ratio on the voltage of a power supply line to obtain a first voltage;
the isolation transformer is used for processing the voltage of the power supply line to obtain a second voltage;
the compensation transformer is used for carrying out transformation ratio on the second voltage to obtain a third voltage, superposing the third voltage with the first voltage and outputting the superposed voltage;
and the control circuit is used for processing and analyzing according to the input voltage of the autotransformer to control the compensation transformer to obtain the third voltage so as to adjust the output voltage of the compensation transformer.
Further, the compensation transformer includes:
and the voltage regulator is used for regulating the line voltage so as to output the required compensation voltage.
Further, the control circuit includes:
a detection unit for detecting an input voltage;
and the central processing unit is used for determining the required compensation voltage according to the input voltage value and a preset target voltage value, and controlling the boosting transformation ratio of the compensation transformer according to the compensation voltage so as to enable the compensation transformer to output the required compensation voltage.
Furthermore, the detection unit adopts a chip JSY-MK-141G.
Further, the central processing unit adopts a chip DSP TMS 320-F28335.
Furthermore, a main circuit of the control circuit is connected with a single-stage circuit breaker.
Further, the autotransformer is a single-phase autotransformer or a three-phase autotransformer.
Further, the isolation transformer is a three-winding transformer.
Further, the compensation transformer is a parallel single-phase transformer or a parallel three-phase transformer.
The utility model adopts the above technical scheme, the beneficial effect that can reach includes:
the transformer set system of one-way power supply that this application embodiment provided, through setting up autotransformer, isolation transformer, offset transformer and control circuit, this transformer set system of one-way power supply is suitable for the environment below the height above sea level 5000m, and the reliability is high, and is small, the installation is simple, the consumption is little, and adopts this application technical scheme to reduce each cooperation device lectotype specification to reduce cost has realized one-way power supply.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a unidirectional power supply transformer set system provided by the present invention;
fig. 2 is a topological diagram of a transformer set system with unidirectional power supply according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A specific unidirectional power supply transformer bank system provided in the embodiments of the present application is described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model provides a transformer set system of one-way power supply, include:
the autotransformer 1 is used for carrying out voltage boosting transformation ratio on the voltage of a power supply line to obtain a first voltage;
the isolation transformer 2 is used for processing the voltage of the power supply line to obtain a second voltage;
the compensating transformer 3 is used for carrying out transformation ratio on the second voltage to obtain a third voltage, superposing the third voltage with the first voltage and outputting the superposed voltage;
and the control circuit is used for processing and analyzing according to the input voltage of the autotransformer to control the compensation transformer to obtain the third voltage so as to adjust the output voltage of the compensation transformer.
The unidirectional power supply transformer bank system can be applied to various types of power supply lines, such as a 6kv power supply line, a 10kv power supply line, a 35kv power supply line or other voltage power supply lines. The embodiment of the application takes a 10kv power supply line as an example.
According to the working principle of the unidirectional power supply transformer set system, when 10kV is supplied with power, the voltage boosting transformation ratio K is fixed through the autotransformer and is increased to delta UIntoAnd compensating voltage U with compensating transformer 3Supplement deviceAnd the output voltage is improved by superposition. The isolation transformer 2 changes the input voltage into the supply compensationThe voltage class used by the transformer 3 and the compensating transformer 3 couples the voltage provided by the isolating transformer 2 into the 10kV line to the voltage required by the 10kV line. The homonymous end of the compensating transformer 3 is adjusted to obtain positive and negative direction voltage, and the positive and negative direction voltage is combined with the fixed voltage generated by the self-coupling transformer to realize voltage regulation.
The application provides a transformer bank system of one-way power supply is based on the design of the special transformer of different voltage class line voltage compensation. The special transformer is a transformer group consisting of an isolation transformer, an autotransformer and a compensation transformer, and is assembled in the same transformer oil tank, so that the purpose of unidirectional power supply and voltage regulation is realized.
In some embodiments, the compensation transformer 3 of the unidirectional power supply transformer bank system provided in the embodiments of the present application includes:
and the voltage regulator is used for regulating the line voltage so as to output the required compensation voltage.
Preferably, the control circuit includes:
a detection unit (not shown in the figure) for detecting an input voltage;
and a central processing unit (not shown in the figure) for determining a required compensation voltage according to the input voltage value and a preset target voltage value, and controlling the step-up transformation ratio of the compensation transformer 3 according to the compensation voltage, so that the compensation transformer 3 outputs the required compensation voltage.
Preferably, the detection unit in the present application employs a chip: JSY-MK-141G for detecting voltage value.
Preferably, the central processing unit adopts a chip DSP TMS 320-F28335.
Preferably, a single-stage circuit breaker is connected to the main circuit of the control circuit.
Specifically, the single-stage circuit breaker is arranged to prevent the abnormality or fault of the power supply from entering the control circuit and further causing short circuit or other faults to destroy electrical elements in the control circuit.
Preferably, one end of the secondary side of the compensation transformer 3 is connected to the input end of the power supply line, and the other end is the output end of the power supply line.
Preferably, the autotransformer 1 is a single-phase autotransformer or a three-phase autotransformer.
Preferably, the isolation transformer 2 is a three-winding transformer.
Preferably, the compensation transformer 3 is a parallel single-phase transformer or a parallel three-phase transformer.
To sum up, the utility model provides a transformer set system of one-way power supply can be suitable for the environment below the height above sea level 5000m through setting up autotransformer, isolation transformer, compensating transformer and control circuit, and the reliability is high, and is small, the installation is simple, the consumption is little, and adopts this application technical scheme to reduce each cooperation device lectotype specification to reduce cost has realized one-way power supply.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A unidirectionally powered transformer bank system, comprising:
the autotransformer is used for boosting the voltage of the power supply line to obtain a fixed first voltage;
the isolation transformer is used for processing the voltage of the power supply line to obtain a second voltage;
the compensation transformer is used for carrying out transformation ratio on the second voltage to obtain a third voltage, superposing the third voltage with the first voltage and outputting the superposed voltage;
and the control circuit is used for processing and analyzing according to the input voltage of the autotransformer to control the compensation transformer to obtain the third voltage so as to adjust the output voltage of the compensation transformer.
2. The unidirectionally powered transformer bank system of claim 1, wherein said compensation transformer comprises:
and the voltage regulator is used for regulating the line voltage so as to output the required compensation voltage.
3. The unidirectionally powered transformer bank system of claim 2, wherein said control circuit comprises:
a detection unit for detecting an input voltage;
and the central processing unit is used for determining the required compensation voltage according to the input voltage value and a preset target voltage value, and controlling the boosting transformation ratio of the compensation transformer according to the compensation voltage so as to enable the compensation transformer to output the required compensation voltage.
4. The uni-directionally powered transformer bank system of claim 3,
the detection unit adopts a chip JSY-MK-141G.
5. The uni-directionally powered transformer bank system of claim 3,
the central processing unit adopts a chip DSP TMS 320-F28335.
6. The uni-directionally powered transformer bank system according to any of claims 1-5,
and a main circuit of the control circuit is connected with a single-stage circuit breaker.
7. The uni-directionally powered transformer bank system according to claim 1,
one end of the secondary side of the compensation transformer is connected with the input end of the power supply line, and the other end of the secondary side of the compensation transformer is the output end of the power supply line.
8. The uni-directionally powered transformer bank system according to claim 1,
the autotransformer is a single-phase autotransformer or a three-phase autotransformer.
9. The uni-directionally powered transformer bank system according to claim 1,
the isolation transformer is a three-winding transformer.
10. The uni-directionally powered transformer bank system according to claim 1,
the compensation transformer is a parallel single-phase transformer or a parallel three-phase transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020046416.8U CN210985947U (en) | 2020-01-09 | 2020-01-09 | Unidirectional power supply transformer set system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020046416.8U CN210985947U (en) | 2020-01-09 | 2020-01-09 | Unidirectional power supply transformer set system |
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| Publication Number | Publication Date |
|---|---|
| CN210985947U true CN210985947U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020046416.8U Active CN210985947U (en) | 2020-01-09 | 2020-01-09 | Unidirectional power supply transformer set system |
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| CN (1) | CN210985947U (en) |
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- 2020-01-09 CN CN202020046416.8U patent/CN210985947U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Transformer bank system with unidirectional power supply Effective date of registration: 20210830 Granted publication date: 20200710 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: JINAN LAFEIYE ELECTRIC POWER SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2021980008642 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220829 Granted publication date: 20200710 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: JINAN LAFEIYE ELECTRIC POWER SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2021980008642 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Transformer bank system for unidirectional power supply Effective date of registration: 20220831 Granted publication date: 20200710 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: JINAN LAFEIYE ELECTRIC POWER SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2022370000114 |