CN116313451B - Single-phase bipolar reactor, voltage stabilizing device, three-phase bipolar reactor and application thereof - Google Patents
Single-phase bipolar reactor, voltage stabilizing device, three-phase bipolar reactor and application thereof Download PDFInfo
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- CN116313451B CN116313451B CN202310527364.4A CN202310527364A CN116313451B CN 116313451 B CN116313451 B CN 116313451B CN 202310527364 A CN202310527364 A CN 202310527364A CN 116313451 B CN116313451 B CN 116313451B
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- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 27
- 238000004804 winding Methods 0.000 claims abstract description 128
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 71
- 230000006641 stabilisation Effects 0.000 claims description 9
- 238000011105 stabilization Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000010248 power generation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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Abstract
The application relates to the technical field of power electronics, and particularly provides a single-phase bipolar reactor, a voltage stabilizing device, a three-phase bipolar reactor and application thereof; comprising a bipolar primary winding module comprising: the first primary winding and the second primary winding are connected with N lines at two ends (L2, L3) of different names of the first primary winding and the second primary winding, and are connected with L lines at the other two ends (L1, L4) of different names of the first primary winding and the second primary winding; a suppressor set comprising a first suppressor, a second suppressor, and a third suppressor; the bidirectional thyristor group comprises a first bidirectional thyristor, a second bidirectional thyristor and a third bidirectional thyristor; the two ends of the secondary winding module are connected with L lines and are coupled with the bipolar primary winding module; only one triac needs to be turned on and zero crossing hardware interlock is used. When the voltage compensation is shifted, the primary winding is not opened as long as the voltage compensation is turned off and turned on, and dead time is not reserved.
Description
Technical Field
The application belongs to the technical field of power electronics, and particularly relates to a single-phase bipolar reactor, a voltage stabilizing device, a three-phase bipolar reactor and application thereof.
Background
The prior art (CN 201781175U) provides an improved structure of an electric brush assembly, which plays an important role in the safe operation of the compensating alternating current voltage stabilizer, more particularly, the temperature rise of the contact point of a coil of the voltage regulator and an electric brush is greatly reduced, but the rated capacity is only lower than 1000 KVA.
The voltage stabilizer mentioned in the above patent technology does not change the defects of needing regular maintenance and low voltage regulating speed. It would be possible to cause damage or burn out if not regularly serviced, thereby affecting the normal power supply.
With the development of national economy, the power consumption load is increasingly complicated and diversified, and a large amount of loads with nonlinear, impact and unbalanced characteristics cause the deterioration of the power quality of a power supply grid; meanwhile, the requirements of the modern industry and commerce on the electric energy quality are higher and higher by using a large amount of computer systems and rapidly developing high and new technology industries, and particularly, once problems occur in some enterprises sensitive to the electric energy quality, great economic losses can be generated.
There is an urgent need for a voltage regulator product with high rated capacity, fast voltage regulation and transformation speed (i.e., small voltage regulation threshold value), and better durability.
Disclosure of Invention
The present application aims to overcome the above-mentioned drawbacks, and in one aspect, provides a single-phase bipolar reactor connected in series between an input VIN and an output VOUT, between which an N line and an L line are connected, comprising:
a bipolar primary winding module, comprising:
the first primary winding and the second primary winding are connected with N lines at two ends L2 and L3 which are different from each other, and are connected with L lines at the other two ends L1 and L4 which are different from each other;
a suppressor set comprising a first suppressor, a second suppressor, and a third suppressor; and
the bidirectional thyristor group comprises a first bidirectional thyristor, a second bidirectional thyristor and a third bidirectional thyristor;
the first suppressor is connected with two ends of the first primary winding, the second suppressor is connected with two ends of the second primary winding, and the third suppressor is connected between the first primary winding and the second primary winding;
wherein the first triac is connected between the two ends of the first primary winding or between the two ends of the second primary winding or between the other two ends L1, L4 of the first primary winding and the second primary winding, and
one end of the second bidirectional thyristor and one end of the third bidirectional thyristor are respectively connected with the other ends of the first primary winding and the second primary winding which are different from each other; the other ends of the second bidirectional thyristor and the third bidirectional thyristor are connected with an L line;
and the two ends of the secondary winding module are connected with the L line and are coupled with the bipolar primary winding module.
Preferably, the single-phase bipolar reactor further comprises a switch, one end of the switch is connected with the second bidirectional thyristor and the third bidirectional thyristor, the other end of the switch is connected with an L line, and the other ends L1 and L4 used for mutually and differently naming the first primary winding and the second primary winding are connected with the L line.
Preferably, the first suppressor, the second suppressor, and the third suppressor each comprise a varistor.
Preferably, at least one of the first suppressor, the second suppressor and the third suppressor further comprises a modem connected in parallel with the varistor.
Preferably, the modem comprises a resistor and an inductor connected in series.
Preferably, the single-phase bipolar reactor further comprises:
the multi-path driving components K1, G1, K2 and G2 are connected with the first bidirectional thyristor, the second bidirectional thyristor and the third bidirectional thyristor in a one-to-one correspondence manner, and are used for receiving driving signals or cut-off signals of the bidirectional thyristors.
Another aspect of the present application provides a combined three-phase bipolar reactor comprising three single-phase bipolar reactors connected in series in combination with each other, and connected in series between an input VIN and an output VOUT for regulating a three-phase voltage imbalance or for regulating different operating voltages,
the three single-phase bipolar reactors are connected in the following manner:
the two ends L2 and L3 of the first primary winding and the second primary winding of each single-phase bipolar reactor are respectively connected with N wires, and the other two ends L1 and L4 are respectively connected with L wires.
Another aspect of the present application provides an integrated three-phase bipolar reactor connected in series between an input VIN and an output VOUT for regulating different operating voltages, each phase bipolar reactor of the integrated three-phase bipolar reactor comprising:
a bipolar primary winding module, comprising:
the first primary winding and the second primary winding are connected with N lines at two ends L2 and L3 which are different from each other, and are connected with L lines at the other two ends L1 and L4 which are different from each other;
a suppressor set comprising a first suppressor, a second suppressor, and a third suppressor; and
the bidirectional thyristor group comprises a first bidirectional thyristor, a second bidirectional thyristor and a third bidirectional thyristor;
the first suppressor is connected with two ends of the first primary winding, the second suppressor is connected with two ends of the second primary winding, and the third suppressor is connected between the first primary winding and the second primary winding;
wherein the first triac is connected between the two ends of the first primary winding or between the two ends of the second primary winding or between the other two ends L1, L4 of the first primary winding and the second primary winding, and
one end of the second bidirectional thyristor and one end of the third bidirectional thyristor are respectively connected with the other ends L1 and L4 of the first primary winding and the second primary winding which are different from each other; the other ends of the second bidirectional thyristor and the third bidirectional thyristor are connected with an L line;
and the two ends of the secondary winding module are connected with the L line and are coupled with the bipolar primary winding module.
Another aspect of the present application provides a voltage regulator connected in series between an input VIN and an output VOUT, comprising:
the main control system comprises a control module;
a plurality of single-phase bipolar reactors connected in series,
the control module of the main control system is used for sending control instructions to the plurality of single-phase bipolar reactors connected in series so as to control the plurality of single-phase bipolar reactors connected in series to perform voltage stabilization.
Another aspect of the present application provides a voltage regulator connected in series between an input VIN and an output VOUT, comprising:
the main control system comprises a control module;
the control module of the main control system is used for sending control instructions to the combined three-phase bipolar reactors so as to control the combined three-phase bipolar reactors to perform voltage stabilization.
Another aspect of the present application provides a voltage regulator connected in series between an input VIN and an output VOUT, comprising:
the main control system comprises a control module;
the control module of the main control system is used for sending control instructions to the integrated three-phase bipolar reactors so as to control the integrated three-phase bipolar reactors to perform voltage stabilization.
In another aspect, the application provides an application of the combined three-phase bipolar reactor, which is connected between power generation equipment and a power grid or between the power grid and electric equipment for stabilizing voltage.
In another aspect, the application provides an application of the integrated three-phase bipolar reactor, which is connected between power generation equipment and a power grid or between the power grid and electric equipment for stabilizing voltage.
The technical scheme provided by the application has at least the following technical effects:
(1) when the power is on or the input voltage is equal to the rated voltage value, a first bidirectional thyristor in the bidirectional thyristor group is controlled to be switched on, and the primary winding is in short circuit (in a through state) so that the input voltage is equal to the output voltage;
(2) when the power-on or input voltage is not equal to the rated voltage value, the first bidirectional thyristor in the bidirectional thyristor group is controlled to be turned off, and the second bidirectional thyristor and the third bidirectional thyristor in the bidirectional thyristor group are controlled as follows:
when the input voltage is lower than the rated voltage value, a first bidirectional thyristor in the bidirectional thyristor group is controlled to be turned off, a second bidirectional thyristor in the bidirectional thyristor group is controlled to be turned on, a third bidirectional thyristor in the bidirectional thyristor group is controlled to be turned off, and the primary winding performs voltage compensation on the secondary winding to enable the output voltage to be equal to the rated voltage value;
when the input voltage is higher than the rated voltage value, a first bidirectional thyristor in the bidirectional thyristor group is controlled to be turned off, a second bidirectional thyristor in the bidirectional thyristor group is controlled to be turned off, a third bidirectional thyristor in the bidirectional thyristor group is controlled to be turned on, and the primary winding performs voltage offset on the secondary winding, so that the output voltage is equal to the rated voltage value.
It can be further seen from the above principle that only one triac per phase needs to be turned on and zero crossing hardware interlock is used for each phase in operation of the present schematic. When the voltage compensation is shifted, the primary winding is not opened as long as the voltage compensation is turned off and turned on, and dead time is not reserved.
In summary, the single-phase bipolar reactor, the voltage stabilizing device and the three-phase bipolar reactor which are claimed by the application are safe and reliable to operate, and are widely applied to the space between power generation equipment and a power grid or the space between the power grid and electric equipment for stabilizing the voltage.
Drawings
Fig. 1 is a circuit diagram of an exemplary embodiment 1 of a single-phase bipolar reactor according to the present application;
fig. 2 is a circuit diagram of exemplary embodiment 2 of a single-phase bipolar reactor according to the present application;
fig. 3 is a circuit diagram of exemplary embodiment 3 of a single-phase bipolar reactor according to the present application;
fig. 4 is a circuit diagram of an exemplary embodiment 4 of a three-phase bipolar reactor according to the present application;
fig. 5 is a circuit diagram of an exemplary embodiment 5 of a three-phase bipolar reactor according to the present application;
fig. 6 is a voltage stabilizing device according to exemplary embodiment 6 of the voltage stabilizing device of the present application;
fig. 7 is a voltage stabilizing device according to exemplary embodiment 7 of the voltage stabilizing device of the present application.
The main reference numerals illustrate: 1. a single-phase bipolar reactor; 11. a bipolar primary winding module; 111. a first primary winding; 112. a second primary winding; 12. a suppressor set; 121. a first inhibitor; 122. a second suppressor; 123. a third suppressor; 13. a bidirectional thyristor group; 131. a first bidirectional thyristor; 132. a second bidirectional thyristor; 133. a third bidirectional thyristor; 14. a switch; 15. a modem; 16. a secondary winding module; 2. and a master control system.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the application and should not be construed as limiting the application.
In the description of the embodiments of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
The application will be described in further detail with reference to the drawings and the detailed description.
[ Single-phase double-pole reactor 1 according to an exemplary embodiment of the present application ]
Example 1: single-phase bipolar reactor 1
A bipolar reactor according to an exemplary embodiment of the present application will now be described in detail with reference to fig. 1.
The single-phase bipolar reactor 1 of the present embodiment is connected in series between an input VIN and an output VOUT, between which an N line and an L line are connected, and includes: a bipolar primary winding module 11 comprising: a first primary winding 111 and a second primary winding 112, both ends L2, L3 of the first primary winding 111 and the second primary winding 112, which are different from each other, are connected to N lines, and the other both ends L1, L4, which are different from each other, are connected to L lines; a suppressor set 12 comprising a first suppressor 121, a second suppressor 122, and a third suppressor 123; and a triac group 13 including a first triac 131, a second triac 132, and a third triac 133; wherein the first suppressor 121 is connected to both ends of the first primary winding 111, the second suppressor 122 is connected to both ends of the second primary winding 112, and the third suppressor 123 is connected between the first primary winding 111 and the second primary winding 112; the first triac 131 is connected between the other ends L1, L4 of the first primary winding 111 and the second primary winding 112, the first triac 131 is connected between the two ends of the first primary winding 111, and one ends of the second triac 132 and the third triac 133 are respectively connected with the other ends L1, L4 of the first primary winding 111 and the second primary winding 112; the other ends of the second bidirectional thyristor 132 and the third bidirectional thyristor 133 are connected with an L line;
the secondary winding module 16 is connected to the L-line at both ends thereof, and is coupled to the bipolar primary winding module 11.
The bipolar reactor further comprises a switch 14, one end of the switch 14 is connected with the second triac 132 and the third triac 133, the other end is connected with an L line, and the other ends L1 and L4 used for connecting the first primary winding 111 and the second primary winding 112 with the L line.
The first suppressor 121, the second suppressor 122, and the third suppressor 123 each comprise a varistor; and at least one of the first suppressor 121, the second suppressor 122 and the third suppressor 123 further comprises a modem 15 connected in parallel with the varistor; the first suppressor 121 in this embodiment further comprises a modem 15 connected in parallel with the piezo-resistor, the modem 15 comprising a resistor and an inductance connected in series.
The single-phase bipolar reactor 1 further includes: multiplex driving members K1, G1, K2, G2,
the multiple driving components K1, G1, K2, G2 are connected with the first triac 131, the second triac 132, and the third triac 133 in a one-to-one correspondence manner, and are configured to receive a driving signal or a cut-off signal of the triac, where K1, G1, K2, and G2 form a control electrode of each triac.
The specific working principle is as follows:
(1) when the power is on or the input voltage is equal to the rated voltage value, the first triac 131 in the triac set 13 is controlled to be turned on, and the primary winding is shorted (in a through state) so that the input voltage is equal to the output voltage;
(2) when the power is on or the input voltage is not equal to the rated voltage value, the first triac 131 in the triac set 13 is controlled to be turned off, and the second triac 132 and the third triac 133 in the triac set 13 are controlled as follows:
when the input voltage is lower than the rated voltage value, a first bidirectional thyristor 131 in the bidirectional thyristor group 13 is controlled to be turned off, a second bidirectional thyristor 132 in the bidirectional thyristor group 13 is controlled to be turned on, a third bidirectional thyristor 133 in the bidirectional thyristor group 13 is controlled to be turned off, and the primary winding compensates the voltage of the secondary winding to enable the output voltage to be equal to the rated voltage value;
when the input voltage is higher than the rated voltage value, the first triac 131 in the triac set 13 is turned off under control, the second triac 132 in the triac set 13 is turned off under control, the third triac 133 in the triac set 13 is turned on under control, and the primary winding performs voltage cancellation on the secondary winding to make the output voltage equal to the rated voltage value.
It can be further seen from the above principle that only one triac per phase needs to be turned on and zero crossing hardware interlock is used for each phase in operation of the present schematic. When the voltage compensation is shifted, the primary winding is not opened as long as the voltage compensation is turned off and turned on, and dead time is not reserved.
In summary, the single-phase bipolar reactor 1 disclosed by the application is safe and reliable to operate, and is widely applied to the space between power generation equipment and a power grid or the space between the power grid and electric equipment for stabilizing voltage.
Example 2: single-phase bipolar reactor 1
The present embodiment differs from embodiment 1 in that: as shown in fig. 2, in the present embodiment, the first triac 131 is connected between both ends of the first primary winding 111.
The effect of this embodiment is the same as that of embodiment 1, and only the difference is in the modification of the connection mode, and the specific through, compensation, and cancellation state corresponding control is modified.
Example 3: single-phase bipolar reactor 1
The present embodiment differs from embodiment 1 in that: as shown in fig. 3, in the present embodiment, the first triac 131 is connected between both ends of the second primary winding 112.
The effect of this embodiment is the same as that of embodiment 1, and only the difference is in the modification of the connection mode, and the specific through, compensation, and cancellation state corresponding control is modified.
[ three-phase bipolar reactor according to exemplary embodiments of the present application ]
Example 4: combined three-phase bipolar reactor
As shown in fig. 4, the combined three-phase bipolar reactor according to exemplary embodiment 4 of the present application includes three single-phase bipolar reactors 1 connected in series in combination with each other, and the combined three-phase bipolar reactor according to exemplary embodiment 4 of the present application is connected in series between an input VIN and an output VOUT, wherein the three single-phase bipolar reactors 1 are connected in such a manner that: in the three single-phase bipolar reactors 1, the two ends L2, L3 of the first primary winding 111 and the second primary winding 112 of each phase single-phase bipolar reactor 1, which are different from each other, are connected to N lines, and the other two ends L1, L4, which are different from each other, are connected to L lines. LA1 and LA2 in fig. 4 are the end numbers at both ends of the first primary winding in the first single-phase bipolar reactor 1, and LA3 and LA4 are the end numbers at both ends of the second primary winding in the first single-phase bipolar reactor 1; LB1 and LB2 are the end numbers of the two ends of the first primary winding in the second single-phase bipolar reactor 1, and LB3 and LB4 are the end numbers of the two ends of the second primary winding in the second single-phase bipolar reactor 1; LC1 and LC2 are the end numbers at both ends of the first primary winding in the third single-phase bipolar reactor 1, and LC3 and LC4 are the end numbers at both ends of the second primary winding in the third single-phase bipolar reactor 1. And the specific connection relation among the three single-phase bipolar reactors 1 is as follows: LA2 and LA3 are commonly connected to LB2 and LB3 and LC2 and LC3, and are connected to N lines.
Working principle:
the specific operation principle of the present embodiment is as described above for the single-phase bipolar reactor 1, and a combined three-phase bipolar reactor having a phase a, a phase B, and a phase C is formed by connecting three single-phase bipolar reactors 1 in combination.
The control method of the combined three-phase bipolar reactor provided by the embodiment of the application is that three phases can be respectively controlled and regulated, and the combined three-phase bipolar reactor is used for repairing three-phase unbalance of operating voltage and operating voltage variation.
Example 5: integrated three-phase bipolar reactor
As shown in fig. 5, the integrated three-phase bipolar reactor according to exemplary embodiment 5 of the present application includes integrally connected bipolar reactors, and the integrated three-phase bipolar reactor according to exemplary embodiment 5 of the present application is connected in series between the input VIN and the output VOUT.
The connection manner of each phase bipolar reactor of the integrated three-phase bipolar reactor according to exemplary embodiment 5 of the present application is the same as that of each component of the single-phase bipolar reactor 1 described above, and will not be described here again.
The two ends L2, L3 of the first primary winding 111 and the second primary winding 112 of the respective-phase bipolar reactor of the integrated three-phase bipolar reactor according to exemplary embodiment 5 of the present application, which are different from each other, are connected to N lines, and the other two ends L1, L4, which are different from each other, are connected to L lines.
Working principle:
the specific working principle of the embodiment is as described above for the single-phase bipolar reactor 1, and the three single-phase bipolar reactors 1 are integrally connected to form an integrated three-phase bipolar reactor with a phase A, a phase B and a phase C so as to meet the voltage stabilizing requirements of different operating voltages.
The control method of the combined three-phase bipolar reactor according to the embodiment of the application is that three phases can be respectively controlled and regulated for repairing the situation that three-phase voltage is stable but operating voltage changes.
[ Voltage stabilizing device according to exemplary embodiment of the application ]
Example 6: voltage stabilizing device
A voltage stabilizing device according to an exemplary embodiment of the present application will now be described in detail with reference to fig. 6.
A voltage regulator according to an exemplary embodiment of the present application is connected in series between an input VIN and an output VOUT, and includes: a master control system 2 including a control module; a plurality of single-phase bipolar reactors 1 (in this embodiment 6, the number of single-phase bipolar reactors 1 is 3, but the present application is not limited thereto), and a plurality of single-phase bipolar reactors 1 are connected in series, redundant component numbers in fig. 6, such as a G, K control electrode of a triac in fig. 6, etc., are omitted for clarity of the drawing, and specific microstructures thereof may refer to component numbers of other embodiments of the present application.
The control module of the master control system 2 is used for sending control instructions to the plurality of single-phase bipolar reactors 1 connected in series so as to control the plurality of single-phase bipolar reactors 1 connected in series to carry out voltage stabilization.
Working principle:
the specific working principle of the embodiment is as described above for the single-phase reactor, and three single-phase bipolar reactors 1 are connected in series to meet the voltage stabilizing requirements of different rated voltages.
Example 7A Voltage stabilizing device
A voltage stabilizing device according to an exemplary embodiment of the present application will now be described in detail with reference to fig. 7.
A voltage regulator according to an exemplary embodiment of the present application is connected in series between an input VIN and an output VOUT, and includes: a master control system 2 including a control module; a plurality of three-phase bipolar reactors (in this embodiment 7, the number of three-phase bipolar reactors is 3, but the present application is not limited thereto), in this embodiment, the three-phase bipolar reactors are combined or integrated three-phase bipolar reactors, which are communicatively connected to the master control system 2, redundant component numbers in fig. 7, such as the G, K control electrode of the triac in fig. 7, etc., are omitted for clarity of the drawing, and specific microstructures thereof may refer to component numbers in other embodiments of the present application.
The control module of the main control system 2 is configured to send control instructions to the plurality of three-phase bipolar reactors to control the plurality of three-phase bipolar reactors to perform voltage stabilization.
Working principle:
the specific working principle of the embodiment is as described above for the single-phase reactor, and the voltage stabilizing device formed by connecting three or a plurality of three-phase bipolar reactors is controlled to finally meet the voltage stabilizing requirements of different rated voltages.
[ use of three-phase bipolar reactor in Voltage stabilization according to exemplary embodiments of the application ]
Example 8: application of three-phase bipolar reactor.
The three-phase bipolar reactor according to the exemplary embodiment of the present application is connected between a power generation device and a power grid or between a power grid and electric equipment for stabilizing voltage, and is a combined or integrated three-phase bipolar reactor.
The present application has been described in detail by way of specific examples, but these should not be construed as limiting the application. Many variations and modifications may be made by those skilled in the art without departing from the principles of the application, which is also considered to be a protection aspect of the application.
Claims (12)
1. A single-phase bipolar reactor connected in series between an input (VIN) and an output (VOUT), between which an N-line and an L-line are connected, comprising:
a bipolar primary winding module (11) comprising:
a first primary winding (111) and a second primary winding (112), wherein two ends (L2, L3) of the first primary winding (111) and the second primary winding (112) which are different from each other are connected with N wires, and the other two ends (L1, L4) which are different from each other are connected with L wires;
a suppressor set (12) comprising a first suppressor (121), a second suppressor (122), and a third suppressor (123); and
a triac group (13) including a first triac (131), a second triac (132), and a third triac (133);
wherein the first suppressor (121) is connected with two ends of the first primary winding (111), the second suppressor (122) is connected with two ends of the second primary winding (112), and the third suppressor (123) is connected between the first primary winding (111) and the second primary winding (112);
wherein the first triac (131) is connected between the two ends of the first primary winding (111) or between the two ends of the second primary winding (112) or between the other two ends (L1, L4) of the first primary winding (111) and the second primary winding (112) which are mutually different, and
one end of the second bidirectional thyristor (132) and one end of the third bidirectional thyristor (133) are respectively connected with the other ends of the first primary winding (111) and the second primary winding (112) which are different from each other; the other ends of the second bidirectional thyristor (132) and the third bidirectional thyristor (133) are connected with an L line;
a secondary winding module (16) having both ends connected to the L-wire and coupled to the bipolar primary winding module (11);
the single-phase bipolar reactor (1) further comprises a switch (14), one end of the switch (14) is connected with the second bidirectional thyristor (132) and the third bidirectional thyristor (133), the other end of the switch is connected with an L line, and the other ends (L1 and L4) which are used for connecting the first primary winding (111) and the second primary winding (112) with each other in different names are connected with the L line.
2. The single-phase bipolar reactor according to claim 1, wherein the first suppressor (121), the second suppressor (122), and the third suppressor (123) each comprise a varistor.
3. The single-phase bipolar reactor according to claim 2, wherein at least one of the first suppressor (121), the second suppressor (122) and the third suppressor (123) further comprises a modem (15) connected in parallel with the varistor.
4. A single-phase bipolar reactor according to claim 3, characterized in that the modem (15) comprises a resistor and an inductance connected in series.
5. The single-phase bipolar reactor according to claim 1, wherein the single-phase bipolar reactor (1) further comprises:
and the multipath driving components (K1, G1, K2, G2) are connected with the first bidirectional thyristors (131), the second bidirectional thyristors (132) and the third bidirectional thyristors (133) in a one-to-one correspondence manner and are used for receiving driving signals or cut-off signals of the bidirectional thyristors.
6. A combined three-phase bipolar reactor, characterized in that it comprises three single-phase bipolar reactors (1) according to any one of claims 1-5, which are connected in series in combination with each other, and which are connected in series between an input (VIN) and an output (VOUT) for regulating three-phase voltage imbalances or for regulating different operating voltages,
the three single-phase bipolar reactors (1) are connected in the following manner:
the first primary winding (111) and the second primary winding (112) of each single-phase bipolar reactor (1) are connected with N lines respectively at two ends (L2, L3) of different names, and are connected with L lines respectively at the other two ends (L1, L4) of different names.
7. Use of a combined three-phase bipolar reactor according to claim 6 in a voltage stabilizing process, connected between a power generation device and a power grid or between a power grid and a consumer, for stabilizing a voltage.
8. An integrated three-phase bipolar reactor, wherein the integrated three-phase bipolar reactor is connected in series between an input (VIN) and an output (VOUT) for adjusting different operating voltages, and each phase bipolar reactor of the integrated three-phase bipolar reactor comprises:
a bipolar primary winding module (11) comprising:
a first primary winding (111) and a second primary winding (112), wherein two ends (L2, L3) of the first primary winding (111) and the second primary winding (112) which are different from each other are connected with N wires, and the other two ends (L1, L4) which are different from each other are connected with L wires;
a suppressor set (12) comprising a first suppressor (121), a second suppressor (122), and a third suppressor (123); and
a triac group (13) including a first triac (131), a second triac (132), and a third triac (133);
wherein the first suppressor (121) is connected with two ends of the first primary winding (111), the second suppressor (122) is connected with two ends of the second primary winding (112), and the third suppressor (123) is connected between the first primary winding (111) and the second primary winding (112);
wherein the first triac (131) is connected between the two ends of the first primary winding (111) or between the two ends of the second primary winding (112) or between the other two ends (L1, L4) of the first primary winding (111) and the second primary winding (112) which are mutually different, and
one end of the second bidirectional thyristor (132) and one end of the third bidirectional thyristor (133) are respectively connected with the other two ends (L1, L4) of the first primary winding (111) and the second primary winding (112) which are different from each other; the other ends of the second bidirectional thyristor (132) and the third bidirectional thyristor (133) are connected with an L line;
and a secondary winding module (16) which is connected with L lines at two ends and is coupled with the bipolar primary winding module (11).
9. Use of an integrated three-phase bipolar reactor according to claim 8 in a voltage stabilizing process, connected between a power generation device and a power grid or between a power grid and a consumer, for stabilizing a voltage.
10. A voltage regulator device connected in series between an input (VIN) and an output (VOUT), comprising:
a master control system (2) comprising a control module;
a plurality of single-phase bipolar reactors (1) according to any one of claims 1 to 5, the plurality of single-phase bipolar reactors (1) being connected in series,
the control module of the main control system (2) is used for sending out control instructions to the plurality of single-phase bipolar reactors (1) connected in series so as to control the plurality of single-phase bipolar reactors (1) connected in series to carry out voltage stabilization.
11. A voltage regulator device connected in series between an input (VIN) and an output (VOUT), comprising:
a master control system (2) comprising a control module;
a plurality of combined three-phase bipolar reactors according to claim 6, which are in communication connection with a master control system (2), wherein a control module of the master control system (2) is configured to send control instructions to the plurality of combined three-phase bipolar reactors to control the plurality of combined three-phase bipolar reactors to perform voltage stabilization.
12. A voltage regulator device connected in series between an input (VIN) and an output (VOUT), comprising:
a master control system (2) comprising a control module;
the integrated three-phase bipolar reactors according to claim 8, which are in communication connection with a master control system (2), wherein a control module of the master control system (2) is configured to send control instructions to the integrated three-phase bipolar reactors to control the integrated three-phase bipolar reactors to perform voltage stabilization.
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| CN116313451A (en) | 2023-06-23 |
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