CN116994860A - Novel electromagnetic voltage regulator - Google Patents
Novel electromagnetic voltage regulator Download PDFInfo
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- CN116994860A CN116994860A CN202311124456.4A CN202311124456A CN116994860A CN 116994860 A CN116994860 A CN 116994860A CN 202311124456 A CN202311124456 A CN 202311124456A CN 116994860 A CN116994860 A CN 116994860A
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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
- H01F27/24—Magnetic cores
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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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/346—Preventing or reducing leakage fields
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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
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
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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
- H01F2027/408—Association with diode or rectifier
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Abstract
The application provides a novel electromagnetic voltage regulator, wherein the voltage regulating mechanism is an A-phase voltage regulating mechanism, a B-phase voltage regulating mechanism and a C-phase voltage regulating mechanism, the iron core structure is a three-phase integrated structure, the windings are identical in structure, each phase of the voltage regulating mechanism comprises a first iron core and a second iron core which are identical in structure and are arranged in parallel, a first high-voltage winding and a second high-voltage winding which are wound on the first iron core, a third high-voltage winding and a fourth high-voltage winding which are wound on the second iron core, and an iron core upper yoke and an iron core lower yoke which are used for wrapping the three-phase regulating mechanism. The application has the characteristics of compact structure, small occupied space, good controllability, high safety and reliability, low cost and the like.
Description
Technical Field
The application belongs to the technical field of power equipment, and particularly relates to a novel electromagnetic voltage regulator for other circuits such as dynamic automatic reactive power compensation of a power grid, soft start of an alternating current motor, arc extinction and resonance elimination devices and the like.
Background
At present, in order to improve the utilization efficiency of electric energy and reduce reactive power, a reactive compensation device is needed, the traditional mode of adopting a capacitor and a reactor is adopted to realize the gradual investment and the gradual excision, the compensation effect is poor, and the compensation effect is difficult to achieve.
Meanwhile, the step-down soft start of the high-voltage alternating current motor firstly adopts liquid soft start, the starting performance is greatly influenced by the ambient temperature, the starting effects of different ambient temperatures are different, and the electrolyte water tank is connected in series in a high-voltage loop, so that the safety and the reliability are low, and the maintenance is troublesome. Secondly, the thyristor is adopted for soft start, the safety and the reliability of the thyristor are affected by the current and voltage equalizing problems of thyristors connected in series in a high-voltage loop at different environmental temperatures, the stability is poor, and the thyristor voltage withstand technology (especially high voltage) is a worldwide difficult problem and is not suitable for use. Thirdly, the traditional magnetic saturation reactor has low controllability due to large magnetic leakage caused by the principle structure, and the direct current power supply is required to be provided independently, so that the overall investment cost is high. And fourthly, the performance of the self-excited solid state soft starting device is influenced by the tap position.
Disclosure of Invention
Aiming at the technical problems in the prior art, the application provides a novel electromagnetic voltage regulator, which has the characteristics of random combination according to working conditions, wide adjusting range, good controllability and the like, and is particularly suitable for a large-capacity adjusting system. By adopting the compensation mode of the additional capacitor, the application can realize the active stepless automatic regulation of the power grid and realize a wider regulation range.
The application solves the technical problems by adopting the following technical scheme:
the novel electromagnetic voltage regulator comprises a three-phase integrated voltage regulating mechanism, wherein the three-phase integrated voltage regulating mechanism comprises an A-phase voltage regulating mechanism, a B-phase voltage regulating mechanism and a C-phase voltage regulating mechanism which are the same in structure;
for any single-phase voltage regulating mechanism, all include: the first high-voltage winding comprises a first iron core, a second iron core, a first high-voltage winding, a second high-voltage winding, a third high-voltage winding and a fourth high-voltage winding, wherein the first iron core and the second iron core are arranged in parallel;
the first high-voltage winding comprises a head end tap, a middle first tap, a middle second tap and a tail end tap;
the second high-voltage winding comprises a head end tap, a middle tap and a tail end tap;
the third high-voltage winding comprises a head end tap, a middle tap and a tail end tap;
the fourth high-voltage winding comprises a head end tap, a middle first tap, a middle second tap and a tail end tap.
As a preferred scheme of the embodiment of the application, the end tap of the first high-voltage winding is connected with the head tap of the fourth high-voltage winding in a bridging way, and the head tap of the second high-voltage winding is connected with the end tap of the third high-voltage winding in a bridging way.
As a preferable scheme of the embodiment of the application, the anode of the thyristor SCR1 is connected with the second tap of the first high-voltage winding, and the cathode is connected with the head tap of the second high-voltage winding;
the anode of the thyristor SCR2 is connected with a first tap at the middle part of the fourth high-voltage winding, and the cathode is connected with a terminal tap of the third high-voltage winding;
the anode of the diode D is connected with the end tap of the first high-voltage winding, and the cathode of the diode D is connected with the end tap of the third high-voltage winding;
and the anode and the cathode of the thyristor are connected between winding taps, and the cathode of the thyristor is connected with the cathode of the diode.
As the preferred scheme of the embodiment of the application, the winding structure is the same as the integrated structure of the A-phase voltage regulating mechanism, the B-phase voltage regulating mechanism and the C-phase voltage regulating mechanism;
the first public end is A phase voltage regulating mechanism time scale A, B phase voltage regulating mechanism time scale B and C phase voltage regulating mechanism time scale C;
the second public end is provided with an A-phase voltage regulating mechanism time scale of X, a B-phase voltage regulating mechanism time scale of Y and a C-phase voltage regulating mechanism time scale of Z.
As the preferable scheme of the embodiment of the application, the first iron core and the second iron core of the phase A voltage regulating mechanism, the phase B voltage regulating mechanism and the phase C voltage regulating mechanism are all positioned in an iron core frame formed by an upper yoke and a lower yoke to form a three-phase integrated iron core structure, the first iron core and the second iron core are fixedly arranged between the upper yoke and the lower yoke, the first high-voltage winding and the second high-voltage winding are wound on the first iron core, and the third high-voltage winding and the fourth high-voltage winding are wound on the first iron core.
Compared with the prior art, the application has the following beneficial effects:
(1) The novel electromagnetic voltage regulator is integrally used in a three-phase iron core structure, and is more compact in structure.
(2) The novel electromagnetic voltage regulator is combined into an integrated structure by utilizing an electromagnetic principle, the performance advantage required by the change of the high-voltage winding is not affected, the iron core and the winding of the novel electromagnetic voltage regulator are fixed, and the adjustment and control of starting parameters of the novel electromagnetic voltage regulator are realized by changing the combination mode of the connection of a public end and the conduction angle of a thyristor connected to an induction alternating-current winding. As the connection mode of the high-voltage winding tap is increased, compared with the prior art, different embodiments are specifically increased, the end voltage of the thyristor is reduced, the adjusting range of the novel electromagnetic voltage regulator is widened, and the novel electromagnetic voltage regulator has the characteristics of good stability, high safety and reliability, low mass production cost and high cost performance, and meanwhile, the adjusting range is wider and more flexible, is suitable for different working condition occasions, has better controllability, stronger compatibility, high automation degree, small volume and no maintenance. The low-voltage low-current control device is simple and convenient to use, and the impedance of the high-voltage alternating-current winding is controlled and regulated by low-voltage low-current.
(3) The novel electromagnetic voltage regulator is simple, compact and reliable in structure and simple to manufacture.
(4) The novel electromagnetic voltage regulator provided by the application is compact in coupling, is provided with a magnetic balance loop, is less in magnetic leakage and is high in controllability.
(5) The novel electromagnetic voltage regulator can be set and adjusted to the optimal parameters according to the on-site working conditions by changing the connection mode of the public terminal and the man-machine interface with man-machine interaction function connected on the intelligent control loop of the periphery of the thyristor, and has the advantages of simple control method, convenient operation and low equipment debugging and maintenance cost.
(6) The novel electromagnetic voltage regulator adopts a high-reliability performance trigger circuit which realizes closed-loop control through a new generation intelligent controller, is not influenced by environmental change, and has high stability.
Drawings
FIG. 1 is a schematic diagram of a novel electromagnetic voltage regulator circuit according to the present application;
fig. 2 is a schematic diagram of the novel electromagnetic voltage regulator in practical application;
fig. 3 is a schematic diagram of the novel electromagnetic voltage regulator in practical application;
fig. 4 is a schematic diagram of the novel electromagnetic voltage regulator in practical application;
fig. 5 is a schematic diagram of the novel electromagnetic voltage regulator in practical application;
fig. 6 is a schematic diagram of the novel electromagnetic voltage regulator in practical application;
fig. 7 to 9 are schematic diagrams of the iron core structure of the novel electromagnetic voltage regulator in practical application, wherein fig. 7 is a front view, fig. 8 is a left side view, and fig. 9 is a top view.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, 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 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 present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, the term "for example" is used to mean "serving as an example, instance, or illustration. Any embodiment described as "for example" in this disclosure is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Referring to fig. 1 to 9, an embodiment of the present application provides a novel electromagnetic voltage regulator, which specifically includes a three-phase integrated voltage regulating mechanism, where the three-phase integrated voltage regulating mechanism includes an a-phase voltage regulating mechanism, a B-phase voltage regulating mechanism, and a C-phase voltage regulating mechanism with the same structure.
For any single-phase voltage regulating mechanism, as shown in fig. 1 to 6, the single-phase voltage regulating mechanism comprises a first iron core, a second iron core, a first high-voltage winding, a second high-voltage winding, a third high-voltage winding, a fourth high-voltage winding, a thyristor SCR1, a thyristor SCR2, a diode D, a first common terminal and a second common terminal, wherein the first iron core and the second iron core are arranged in parallel;
the first iron cores (2A, 2B, 2C) and the second iron cores (5A, 5B, 5C) of the phase A voltage regulating mechanism, the phase B voltage regulating mechanism and the phase C voltage regulating mechanism are all positioned in an iron core frame formed by an upper yoke (7) and a lower yoke (8) to form a three-phase integrated iron core structure, the first iron cores (2A, 2B, 2C) and the second iron cores (5A, 5B, 5C) are fixedly arranged between the upper yokes (7) and the lower yokes (8), the first high-voltage winding (1) and the second high-voltage winding (3) are wound on the first iron cores (2A, 2B, 2C), and the third high-voltage winding (4) and the fourth high-voltage winding (6) are wound on the first iron cores (5A, 5B, 5C), as shown in figures 7-9.
The following describes the embodiment of the present application further by taking an a-phase voltage regulating mechanism as an example.
Example 1：
The phase A voltage regulating mechanism comprises a first iron core (2) and a second iron core (5) which are arranged in parallel, a first high-voltage winding (1) and a second high-voltage winding (3) which are wound on the first iron core (2), a third high-voltage winding (4) and a fourth high-voltage winding (6) which are wound on the second iron core (5), a thyristor SCR1, a thyristor SCR2, a diode D, and a first public end A and a second public end X, wherein the first high-voltage winding and the second high-voltage winding are arranged in parallel.
The first high-voltage winding (1) comprises a head end tap (A1), a middle first tap (A3), a middle second tap (a) and an end tap (e);
the second high-voltage winding (3) comprises a head end tap (b), a middle tap (X3) and an end tap (X1);
the third high-voltage winding (4) comprises a head end tap (A2), a middle tap (A4) and a tail end tap (c);
the fourth high-voltage winding (6) comprises a head end tap (f), a middle first tap (d), a middle second tap (X4) and an end tap (X2).
The anode of the thyristor SCR1 is connected with a second tap (a) of the first high-voltage winding (1), and the cathode is connected with a head end tap (b) of the second high-voltage winding (3);
the anode of the thyristor SCR2 is connected with a first tap (d) at the middle part of the fourth high-voltage winding (6), and the cathode is connected with a terminal tap (c) of the third high-voltage winding (4);
the anode of the diode D is connected with an end tap (e) of the first high-voltage winding (1), and the cathode of the diode D is connected with an end tap (c) of the third high-voltage winding (4);
the end tap (e) of the first high-voltage winding (1) is connected with the head end tap (f) of the fourth high-voltage winding (6) in a bridging mode, and the head end tap (b) of the second high-voltage winding (3) is connected with the end tap (c) of the third high-voltage winding (4) in a bridging mode.
It should be noted here that: the anode and cathode of the thyristor are connected anyway between winding taps, and the cathode of the thyristor must be connected to the cathode of the diode.
The first high-voltage winding (1) and the third high-voltage winding (4) are connected with a first common end (A); the second high-voltage winding (3) and the fourth high-voltage winding (6) are connected with a second common terminal (X). In the implementation process, the connection modes of the common terminal and the winding are as follows:
mode one:
as shown in fig. 2, a head tap (A1) of the first high-voltage winding (1) is connected with a head tap (A2) of the third high-voltage winding (4) as a first common terminal (a); an end tap (X1) of the second high voltage winding (3) is connected with an end tap (X2) of the fourth high voltage winding (6) as a second common terminal (X);
the middle first tap (A3) of the first high-voltage winding (1) is not connected with the middle tap (A4) of the third high-voltage winding (4); the center tap (X3) of the second high voltage winding (3) is also disconnected from the center second tap (X4) of the fourth high voltage winding (6).
Mode two:
as shown in fig. 3, a middle first tap (A3) of the first high-voltage winding (1) is connected with a middle tap (A4) of the third high-voltage winding (4) as a first common terminal (a); an end tap (X1) of the second high voltage winding (3) is connected with an end tap (X2) of the fourth high voltage winding (6) as a second common terminal (X);
the head end tap (A1) of the first high-voltage winding (1) and the head end tap (A2) of the third high-voltage winding (4) can be connected or not; the center tap (X3) of the second high voltage winding (3) is connected to the center second tap (X4) of the fourth high voltage winding (6).
Mode three:
as shown in fig. 4, a head tap (A1) of the first high-voltage winding (1) is connected with a head tap (A2) of the third high-voltage winding (4) as a first common terminal (a); the middle tap (X3) of the second high-voltage winding (3) is connected with the middle second tap (X4) of the fourth high-voltage winding (6) to serve as a second common end (X);
the middle first tap (A3) of the first high-voltage winding (1) is connected with the middle tap (A4) of the third high-voltage winding (4); the end tap (X1) of the second high voltage winding (3) and the end tap (X2) of the fourth high voltage winding (6) may or may not be connected.
Mode four:
as shown in fig. 5, a middle first tap (A3) of the first high-voltage winding (1) is connected with a middle tap (A4) of the third high-voltage winding (4) as a first common terminal (a); the middle tap (X3) of the second high-voltage winding (3) is connected with the middle second tap (X4) of the fourth high-voltage winding (6) to serve as a second common end (X);
the head end tap (A1) of the first high-voltage winding (1) and the head end tap (A2) of the third high-voltage winding (4) can be connected or not; the end tap (X1) of the second high voltage winding (3) and the end tap (X2) of the fourth high voltage winding (6) may or may not be connected.
Mode five:
as shown in fig. 6, a head tap (A1) of the first high-voltage winding (1) is connected with a head tap (A2) of the third high-voltage winding (4) as a first common terminal (a); an end tap (X1) of the second high voltage winding (3) is connected with an end tap (X2) of the fourth high voltage winding (6) as a second common terminal (X);
the middle first tap (A3) of the first high-voltage winding (1) is connected with the middle tap (A4) of the third high-voltage winding (4); the center tap (X3) of the second high voltage winding (3) is connected to the center second tap (X4) of the fourth high voltage winding (6).
The description is given by taking A phase as an illustration, and corresponding terminals are also described by A or A1, A2, A3 and A4 and X or X1, X2, X3 and X4 marks; if the phase is B phase or C phase, the corresponding terminal is changed into B or C and the corresponding Y or Z.
Because the known parameters are uncertain or incomplete, or even cannot be given at all, and because of the contingency of different working conditions, a good parameter adjustment range needs to be designed during design.
In the actual use process, in order to obtain a better adjustment range, a method of changing the wiring mode, namely, any one of five wiring modes in the scheme is adopted so as to achieve the best use effect, in consideration of the complexity of the actual working condition.
By adopting the technical scheme of the novel electromagnetic voltage regulator, the three-phase voltage regulating mechanism is combined into an integrated structure by utilizing the electromagnetic principle, and different wiring modes of the novel electromagnetic voltage regulator are increased by increasing taps of the high-voltage winding, so that the adjusting range of the novel electromagnetic voltage regulator is increased, the novel electromagnetic voltage regulator is ensured to have wider controllable adjustability, the potential and voltage of the exciting winding are also reduced, the stable and reliable work of the exciting control winding is finally ensured, and the safety of the exciting control winding is also improved.
The working principle of the novel electromagnetic voltage regulator is as follows: the utility model discloses electromagnetic voltage regulator's A end (or B end, C end) and X end (or Y end, Z end) access known return circuit (the access mode of A end and X end can be changed according to different operating modes), through adjusting the thyristor conduction angle size of connecing on the induction alternating current winding pull head, make main circuit total magnetic flux change according to the settlement requirement to adjust novel electromagnetic voltage regulator high voltage winding's terminal voltage and inductance value, thereby change the reactive size of electric wire netting inductive or alternating current motor's terminal voltage, realize adjusting the reactive or alternating current motor soft start's of electric wire netting purpose.
The first iron cores (2A, 2B, 2C) and the second iron cores (5A, 5B, 5C) of the phase A voltage regulating mechanism, the phase B voltage regulating mechanism and the phase C voltage regulating mechanism are all positioned in an iron core frame formed by an upper yoke (7) and a lower yoke (8) to form a three-phase integrated iron core structure, a first high-voltage winding (1) and a second high-voltage winding (3) are wound on the first iron core (2), a third high-voltage winding (4) and a fourth high-voltage winding (6) are wound on the first iron core (5), and a closed magnetic loop is formed in the iron cores after the windings are electrified, so that the effects of magnetic leakage, magnetic shielding and magnetic loop providing are avoided.
Example 2：
On the basis of the embodiment 1, three single-phase voltage regulating mechanisms are integrated into a whole to form an integral structure.
When the novel electromagnetic voltage regulator is connected into a three-phase loop power grid, the novel electromagnetic voltage regulator is required to be connected with three groups of capacitors in parallel (one group for each phase) to form a reactive compensation loop, and specifically, the following two connection methods can be adopted:
1) The public end A of the phase A voltage regulating mechanism, the public end B of the phase B voltage regulating mechanism and the public end C of the phase C voltage regulating mechanism are respectively and correspondingly connected with a three-phase power supply of a power grid, and the public end X of the phase A voltage regulating mechanism, the public end Y of the phase B voltage regulating mechanism and the public end Z of the phase C voltage regulating mechanism are in short circuit;
2) The public end A of the phase A voltage regulating mechanism, the public end B of the phase B voltage regulating mechanism and the public end C of the phase C voltage regulating mechanism are respectively and correspondingly connected to a three-phase power supply of the power grid; meanwhile, the public end A of the phase A pressure regulating mechanism is connected with the public end Y of the phase B pressure regulating mechanism, the public end B of the phase B pressure regulating mechanism is connected with the public end Z of the phase C pressure regulating mechanism, and the public end C of the phase C pressure regulating mechanism is connected with the public end X of the phase A pressure regulating mechanism, namely triangle connection.
When the power grid is switched on, the total magnetic flux of the novel electromagnetic voltage regulator connected to the main circuit of the circuit is changed according to preset requirements by adjusting the conducting angle of the thyristors SCR1 and SCR2, so that the voltage of two public ends of the high-voltage winding is adjusted, and finally the inductive reactive power of the power grid or the end voltage of the alternating current motor is adjusted, and the purpose of adjusting the reactive power of the power grid or the soft start of the alternating current motor is achieved.
When the novel electromagnetic voltage regulator is connected into the AC motor loop, the following three connection methods can be adopted:
1) The novel electromagnetic voltage regulator is connected in series to the power supply side of the alternating current motor, the public end A of the phase A voltage regulating mechanism, the public end B of the phase B voltage regulating mechanism and the public end C of the phase C voltage regulating mechanism are respectively connected with a three-phase high-voltage power supply correspondingly, and the public end X of the phase A voltage regulating mechanism, the public end Y of the phase B voltage regulating mechanism and the public end Z of the phase C voltage regulating mechanism are connected with the alternating current motor correspondingly;
2) The novel electromagnetic voltage regulator is connected in series at the tail end of an alternating current motor, the public end A of the phase A voltage regulating mechanism, the public end B of the phase B voltage regulating mechanism and the public end C of the phase C voltage regulating mechanism are respectively correspondingly connected with the alternating current motor, and the public end X of the phase A voltage regulating mechanism, the public end Y of the phase B voltage regulating mechanism and the public end Z of the phase C voltage regulating mechanism are in short circuit together, namely, a star connection method is adopted.
3) The novel electromagnetic voltage regulator is connected in series at the tail end of the alternating current motor, and the public end A end of the phase A voltage regulating mechanism, the public end B end of the phase B voltage regulating mechanism and the public end C end of the phase C voltage regulating mechanism are respectively correspondingly connected with the alternating current motor; meanwhile, the public end A of the phase A pressure regulating mechanism is connected with the public end Y of the phase B camera mechanism, the public end B of the phase B pressure regulating mechanism is connected with the public end Z of the phase C pressure regulating mechanism, and the public end C of the phase C pressure regulating mechanism is connected with the public end X of the phase A mechanism, namely a triangle connection method is adopted.
The magnetic state of the electromagnetic loop of the novel electromagnetic voltage regulator is adjusted by adjusting the conduction angles of the thyristors SCR1 and SCR2, so that the saturation of the electromagnetic loop is controlled by the conduction angle of the thyristors, and the inductance of the high-voltage winding is controlled by the conduction angle of the thyristors.
When the novel electromagnetic voltage regulator is connected into the working loop, three groups of high-voltage windings which are correspondingly connected into the working loop are controlled by the direct current after the conduction angle of the thyristor is conducted, the equivalent inductance of the novel electromagnetic voltage regulator is automatically changed steplessly, and the terminal voltage of the novel electromagnetic voltage regulator is changed along with the novel electromagnetic voltage regulator, so that reactive compensation of a power grid or soft start of a motor can be realized.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. The utility model provides a novel electromagnetic voltage regulator which characterized in that: the three-phase integrated voltage regulating mechanism comprises an A-phase voltage regulating mechanism, a B-phase voltage regulating mechanism and a C-phase voltage regulating mechanism which are identical in structure;
for any single-phase voltage regulating mechanism, all include: the first high-voltage winding comprises a first iron core, a second iron core, a first high-voltage winding, a second high-voltage winding, a third high-voltage winding and a fourth high-voltage winding, wherein the first iron core and the second iron core are arranged in parallel;
the first high-voltage winding comprises a head end tap, a middle first tap, a middle second tap and a tail end tap;
the second high-voltage winding comprises a head end tap, a middle tap and a tail end tap;
the third high-voltage winding comprises a head end tap, a middle tap and a tail end tap;
the fourth high-voltage winding comprises a head end tap, a middle first tap, a middle second tap and a tail end tap.
2. The novel electromagnetic voltage regulator according to claim 1, wherein: the end tap of the first high-voltage winding is connected with the head end tap of the fourth high-voltage winding in a bridging mode, and the head end tap of the second high-voltage winding is connected with the end tap of the third high-voltage winding in a bridging mode.
3. The novel electromagnetic voltage regulator according to claim 1, wherein:
the anode of the thyristor SCR1 is connected with a second tap of the first high-voltage winding, and the cathode is connected with a head tap of the second high-voltage winding;
the anode of the thyristor SCR2 is connected with a first tap at the middle part of the fourth high-voltage winding, and the cathode is connected with a terminal tap of the third high-voltage winding;
the anode of the diode D is connected with the end tap of the first high-voltage winding, and the cathode of the diode D is connected with the end tap of the third high-voltage winding;
and the anode and the cathode of the thyristor are connected between winding taps, and the cathode of the thyristor is connected with the cathode of the diode.
4. The novel electromagnetic voltage regulator according to claim 1, wherein:
an integrated structure of the phase A voltage regulating mechanism, the phase B voltage regulating mechanism and the phase C voltage regulating mechanism with the same winding structure;
the first public end is A phase voltage regulating mechanism time scale A, B phase voltage regulating mechanism time scale B and C phase voltage regulating mechanism time scale C;
the second public end is provided with an A-phase voltage regulating mechanism time scale of X, a B-phase voltage regulating mechanism time scale of Y and a C-phase voltage regulating mechanism time scale of Z.
5. The novel electromagnetic voltage regulator according to claim 1, wherein: the first iron core and the second iron core of the A-phase voltage regulating mechanism, the B-phase voltage regulating mechanism and the C-phase voltage regulating mechanism are all positioned in an iron core frame formed by an upper yoke and a lower yoke to form a three-phase integrated iron core structure, the first iron core and the second iron core are fixedly arranged between the upper yoke and the lower yoke, the first high-voltage winding and the second high-voltage winding are wound on the first iron core, and the third high-voltage winding and the fourth high-voltage winding are wound on the first iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311124456.4A CN116994860A (en) | 2023-09-01 | 2023-09-01 | Novel electromagnetic voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311124456.4A CN116994860A (en) | 2023-09-01 | 2023-09-01 | Novel electromagnetic voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116994860A true CN116994860A (en) | 2023-11-03 |
Family
ID=88530313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311124456.4A Pending CN116994860A (en) | 2023-09-01 | 2023-09-01 | Novel electromagnetic voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116994860A (en) |
-
2023
- 2023-09-01 CN CN202311124456.4A patent/CN116994860A/en active Pending
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