CN211063347U - Bidirectional power supply transformer set system - Google Patents
Bidirectional power supply transformer set system Download PDFInfo
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- CN211063347U CN211063347U CN202020046420.4U CN202020046420U CN211063347U CN 211063347 U CN211063347 U CN 211063347U CN 202020046420 U CN202020046420 U CN 202020046420U CN 211063347 U CN211063347 U CN 211063347U
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Abstract
The utility model relates to a transformer set system with bidirectional power supply, which comprises an isolation transformer for carrying out voltage reduction treatment from the voltage of a power supply line; the compensation transformer converts and couples the voltage subjected to voltage reduction processing, and outputs the coupled voltage; and the control circuit controls the compensation transformer according to the output voltage of the isolation transformer so as to adjust the voltage output by the compensation transformer. The utility model discloses a set up isolation transformer, compensating transformer and control circuit, this transformer battery system of two-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 two-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 two-way power supply.
Background
In the related art, the voltage regulator is generally unidirectional, and when power is required to be supplied in the opposite direction, another set of voltage transformation equipment is required, so that the cost is increased, two pieces of equipment are required to be installed in double space, the required space is huge, the consumption is large, and the installation is complicated.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a transformer set system for bidirectional power supply to solve the problem that the conventional voltage regulator cannot realize bidirectional power supply.
In order to realize the above purpose, the utility model adopts the following technical scheme: a bi-directionally powered transformer bank system, comprising:
the isolation transformer is used for carrying out voltage reduction treatment on the voltage of the power supply line;
the compensation transformer is used for converting and coupling the voltage subjected to voltage reduction processing and outputting the coupled voltage;
and the control circuit is used for controlling the compensation transformer according to the output voltage of the isolation transformer so as to adjust the voltage output by the compensation transformer.
Further, the method also comprises the following steps:
and the voltage regulator is used for regulating the line voltage so as to output the required compensation voltage.
Further, the control circuit includes:
and the central processing unit is used for determining the required coupling voltage according to a preset target voltage value and controlling the output voltage of the voltage regulator according to the coupling voltage so as to enable the compensation transformer to output the coupling voltage.
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 isolation transformer is a three-winding transformer;
the compensation transformer is a parallel transformer.
Further, the method also comprises the following steps: a switch is switched on and off to switch on and off,
the switching switch is used for exchanging the phase line and the zero line of the power taking side of the compensation transformer so as to realize the compensation of output voltage in the opposite direction.
Further, the on-off switch includes:
bypass switch, first voltage regulating switch and second voltage regulating switch.
Further, the method also comprises the following steps: a voltage detection module, the voltage detection module comprising:
a first voltage detection unit for detecting a unidirectional voltage;
and the second voltage detection unit is used for detecting the voltage in the direction opposite to the single direction.
Furthermore, the isolation transformer and the compensation transformer adopt a parallel lap joint mode.
The utility model adopts the above technical scheme, the beneficial effect that can reach includes:
the transformer set system of two-way power supply that this application embodiment provided, through setting up isolation transformer, compensation transformer and control circuit, this transformer set system of two-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 two-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 bi-directional power supply transformer set system provided by the present invention;
fig. 2 is a topology diagram of a bi-directional power supply transformer bank system provided by the present invention;
fig. 3 is another topology diagram of a bi-directional power transformer bank system provided by 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 bi-directional 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 present invention provides a transformer set system with bidirectional power supply, including:
an isolation transformer 1 for performing voltage reduction processing from a voltage of a power supply line;
the compensating transformer 2 is used for converting and coupling the voltage subjected to voltage reduction processing and outputting the coupled voltage;
a control circuit (not shown in the figure) for controlling the compensation transformer 2 according to the output voltage of the isolation transformer 1 to adjust the voltage output by the compensation transformer;
the working principle of the bidirectional power supply transformer bank system provided by the application is that, as shown in fig. 1, when a power supply direction is supplied from a to b, the isolation transformer 1 takes voltage from the input end of a power supply line, the voltage of the power supply line is changed into 220V and 440V, two voltage levels are provided for the compensation transformer 2, and the compensation transformer 2 can convert various voltages required by the power supply line side according to the two voltages taken by itself to be coupled with the voltages, so that the output voltage is improved. If voltage transmission in the opposite direction is needed, the phase line and the zero line on the power taking side of the compensating transformer 2 are exchanged to realize that the power supply direction is supplied to the voltage a from the voltage b, that is, the phase line and the zero line on the power taking side of the compensating transformer 2 are changed to be exchanged through an external auxiliary line switch, and the purpose of supplying power to the voltage a from the voltage b and improving the output voltage can be realized. The principle of the reverse power supply process is the same as that of the forward power supply process.
A bidirectional power supply transformer set system is based on the design of special transformers with different voltage grade circuits and annular power supply circuit voltage compensation. The transformer bank composed of the isolation transformer and the compensation transformer is assembled in the same transformer oil tank, and the purpose of bidirectional power supply and voltage regulation is achieved.
In some embodiments, the bi-directional power supply transformer bank system provided in the embodiments of the present application, the compensation transformer 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:
and the central processing unit is used for determining the required coupling voltage according to a preset target voltage value and controlling the output voltage of the voltage regulator according to the coupling voltage so as to enable the compensation transformer to output the coupling voltage.
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, the isolation transformer 1 is a three-winding transformer
The isolation transformer 1 adopts a full-insulation structure.
The compensation transformer 2 is a parallel transformer.
In some embodiments, the transformer bank system with bidirectional power supply provided in the embodiments of the present application further includes: a switch (not shown in the figure),
the switching switch is used for exchanging the phase line and the zero line of the power taking side of the compensation transformer so as to realize the compensation of output voltage in the opposite direction.
Specifically, the working principle of the bidirectional power supply transformer bank system provided by the application is that when the power supply direction is from a to b, the isolation transformer 1 takes voltage from the input end of the power supply line, the voltage of the power supply line is changed into 220V and 440V, two voltage levels are provided for the compensation transformer 2, and the compensation transformer 2 can convert various voltages on the side of the power supply line according to the two voltages taken by itself to be coupled with the voltages, so that the output voltage is improved. If voltage needs to be transmitted to the opposite direction, the switching switch is closed in the system, the phase line and the zero line on the power taking side of the compensating transformer 2 are exchanged to realize that the power supply direction is supplied to the a from the b, namely the compensating transformer 2 changes the phase line and the zero line on the power taking side to exchange through an external auxiliary line switch, and the purpose of supplying power to the a from the b and improving the output voltage can be realized. The principle of the reverse power supply process is the same as that of the forward power supply process.
In some embodiments, the on/off switch comprises:
bypass switch, first voltage regulating switch and second voltage regulating switch.
In some embodiments, further comprising: a voltage detection module, the voltage detection module comprising:
a first voltage detection unit 101 for detecting a unidirectional voltage;
the second voltage detecting unit 102 is configured to detect a voltage in a direction opposite to the one direction.
Specifically, as shown in fig. 3, the transformer set system with bidirectional power supply provided by the present application is based on the principle that when the first voltage detection unit 101 detects a voltage, it sends a signal 1 to the central processing unit, which indicates that the power supply direction is from a to a, the central processing unit executes a corresponding program, and sends a control signal to control the on-off switch, and the sequence is that the first voltage regulation switch is closed, and the second voltage regulation switch is closed after a period of time, so as to supply power from a to b; on the contrary, when the second detection unit 102 detects the voltage, it sends a signal 2 to the central processing unit, the sequence is that the second voltage regulation switch is closed, the first voltage regulation switch is closed after time delay, which indicates that the power supply direction is supplied from b to a, the central processing unit executes another set of program, and sends a control signal to control the switching switch, so as to realize the power supply from b to a. Under the voltage regulation mode, the bypass switch always keeps the opening state. In summary, the bi-directional power supply transformer set system can realize the bi-directional power supply of the line.
The isolation transformer 1 and the compensation transformer 2 adopt a parallel lap joint mode.
To sum up, the utility model provides a transformer set system of two-way power supply can be suitable for the environment below the height above sea level 5000m through setting up isolation transformer, compensating transformer and control circuit, and the reliability is high, and small, installation are simple, the consumption is little, and adopts this application technical scheme to reduce each cooperation device lectotype specification to reduce cost has realized two-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 bi-directionally powered transformer bank system, comprising:
the isolation transformer is used for carrying out voltage reduction treatment on the voltage of the power supply line;
the compensation transformer is used for converting and coupling the voltage subjected to voltage reduction processing and outputting the coupled voltage;
and the control circuit is used for controlling the compensation transformer according to the output voltage of the isolation transformer so as to adjust the voltage output by the compensation transformer.
2. The bi-directionally 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 bi-directionally powered transformer bank system of claim 2, wherein said control circuit comprises:
and the central processing unit is used for determining the required coupling voltage according to a preset target voltage value and controlling the output voltage of the voltage regulator according to the coupling voltage so as to enable the compensation transformer to output the coupling voltage.
4. The bi-directionally powered transformer bank system of claim 3,
the central processing unit adopts a chip DSP TMS 320-F28335.
5. The bi-directionally powered transformer bank system of any of claims 1-4,
and a main circuit of the control circuit is connected with a single-stage circuit breaker.
6. The bi-directionally powered transformer bank system of claim 1,
the isolation transformer is a three-winding transformer;
the compensation transformer is a parallel transformer.
7. The bi-directionally powered transformer bank system of claim 1, further comprising: a switch is switched on and off to switch on and off,
the switching switch is used for exchanging the phase line and the zero line of the power taking side of the compensation transformer so as to realize the compensation of output voltage in the opposite direction.
8. The bi-directionally powered transformer bank system of claim 7, wherein said fling-cut switch comprises:
bypass switch, first voltage regulating switch and second voltage regulating switch.
9. The bi-directionally powered transformer bank system of claim 8, further comprising: a voltage detection module, the voltage detection module comprising:
a first voltage detection unit for detecting a unidirectional voltage;
and the second voltage detection unit is used for detecting the voltage in the direction opposite to the single direction.
10. The bi-directionally powered transformer bank system of claim 1,
the isolation transformer and the compensation transformer adopt a parallel lap joint mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020046420.4U CN211063347U (en) | 2020-01-09 | 2020-01-09 | Bidirectional power supply transformer set system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020046420.4U CN211063347U (en) | 2020-01-09 | 2020-01-09 | Bidirectional power supply transformer set system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211063347U true CN211063347U (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020046420.4U Active CN211063347U (en) | 2020-01-09 | 2020-01-09 | Bidirectional power supply transformer set system |
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| CN (1) | CN211063347U (en) |
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- 2020-01-09 CN CN202020046420.4U patent/CN211063347U/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 |
Denomination of utility model: Transformer bank system with bidirectional power supply Effective date of registration: 20210830 Granted publication date: 20200721 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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| PE01 | Entry into force 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: 20200721 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 |
|
| PC01 | Cancellation 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 bidirectional power supply Effective date of registration: 20220831 Granted publication date: 20200721 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 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |