CN110085406B - Three-phase orthogonal iron core type hybrid magnetic control reactor - Google Patents
Three-phase orthogonal iron core type hybrid magnetic control reactor Download PDFInfo
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- CN110085406B CN110085406B CN201910494714.5A CN201910494714A CN110085406B CN 110085406 B CN110085406 B CN 110085406B CN 201910494714 A CN201910494714 A CN 201910494714A CN 110085406 B CN110085406 B CN 110085406B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 230000020169 heat generation Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 13
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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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
- H01F27/33—Arrangements for noise damping
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention relates to a three-phase orthogonal iron core type hybrid magnetic control reactor, which comprises 3 groups of unidirectional reactors with the same structure, wherein each group of unidirectional reactors comprises a middle iron core, a first side column iron core and a second side column iron core which are symmetrically arranged at two sides of the middle iron core, the middle iron core is respectively connected with the first side column iron core and the second side column iron core through transverse magnetic yokes at the upper end and the lower end, the first side column iron core is wound with a first side column coil which is symmetrically arranged, the second side column iron core is wound with a second side column coil which is symmetrically arranged, and the middle iron core is wound with a middle coil along the middle part of the length direction; the power loss is reduced and the heat generation is also reduced.
Description
Technical Field
The invention relates to the field of power system equipment, in particular to a three-phase orthogonal iron core type hybrid magnetic control reactor.
Background
Along with the technical development of the reactor, the controllable reactor is increased continuously, but the controllable reactor is mainly divided into two main types: the nonlinear controllable reactor is divided into a magnetic saturation reactor and a single-stage or multi-stage magnetic valve reactor, and for the magnetic saturation reactor, the whole iron core is in a saturation state in a working state, so that the working current is overlarge to cause serious heating of the iron core, and the harmonic content is large; for the magnetic valve type reactor, only a magnetic valve part in the iron core is in a saturated state, and other parts are in a non-saturated state, so that the structure can reduce the iron core loss and the harmonic content. The linear controllable reactor is mainly TCR (thyristor controlled reactor) and SVG (static var generator), and is characterized by that its reactor body adopts air core reactor or reactor whose iron core is equipped with air gap, and in the whole regulation range the reactor itself is linear, and its control operation is simple.
The three-phase magnetic control reactor in the current power system adopts a three-phase six-column magnetic control reactor with each iron core column and a magnetic valve, the iron core column of the reactor and alternating current and direct current magnetic fluxes in the magnetic yoke are mutually overlapped, and the current waveform is in a discontinuous peak shape and the harmonic content is very large when no load is applied. Therefore, improvements and innovations are necessary.
Disclosure of Invention
Aiming at the situation, the invention aims to overcome the defects of the prior art and provide the three-phase orthogonal iron core type hybrid magnetic control reactor, which can effectively solve the problem of reducing the noise level of the magnetic control reactor.
The technical scheme of the invention is as follows:
the utility model provides a three-phase quadrature iron core formula hybrid magnetic control reactor, it includes 3 group's unidirectional electric reactors that the structure is the same, every group unidirectional electric reactor all includes middle iron core and the first side post iron core and the second side post iron core of symmetry setting in middle iron core both sides, middle iron core is in the same place with first side post iron core and second side post iron core respectively through the horizontal yoke at upper and lower both ends, first side post iron core all is provided with first magnetic valve along length direction's center, around being equipped with the first side post coil that the symmetry set up on the first side post iron core of first magnetic valve upper and lower both sides, second side post iron core all is provided with the second magnetic valve along length direction's center, around being equipped with the second side post coil that the symmetry set up on the second side post iron core of second magnetic valve upper and lower both sides, middle iron core is in the middle part of length direction around being equipped with the middle coil, through vertical yoke interconnect between the corresponding iron core between the adjacent group unidirectional electric reactor together.
Preferably, the 3 groups of single-phase reactors are an a-phase reactor, a B-phase reactor and a C-phase reactor, respectively, wherein:
the A-phase reactor further comprises a thyristor TH1, a thyristor TH2 and a freewheel diode D1, a first side column coil of the A-phase reactor is a coil A11 and a coil A12 respectively, the coil A11 is provided with a middle tap and is positioned above, the coil A12 is provided with no middle tap, a second side column coil is a coil A21 and a coil A22 respectively, the coil A22 is provided with a middle tap and is positioned below, the coil A21 is provided with no middle tap, and the middle coil of the A-phase reactor is a coil A3;
the phase B reactor further comprises a thyristor TH3, a thyristor TH4 and a freewheel diode D2, a first side column coil of the phase B reactor is a coil B11 and a coil B12 respectively, the coil B11 is provided with a middle tap and is positioned above, the coil B12 is not provided with a middle tap, a second side column coil is a coil B21 and a coil B22 respectively, the coil B22 is provided with a middle tap and is positioned below, the coil B21 is not provided with a middle tap, and the middle coil of the phase B reactor is a coil B3;
the C-phase reactor further comprises a thyristor TH5, a thyristor TH6 and a freewheel diode D3, the first side column coil of the C-phase reactor is a coil C11 and a coil C12 respectively, the coil C11 is provided with a middle tap and is located above, the coil C12 is not provided with a middle tap, the second side column coil is a coil C21 and a coil C22 respectively, the coil C22 is provided with a middle tap and is located below, the coil C21 is not provided with a middle tap, and the middle coil of the C-phase reactor is a coil C3.
Preferably, the center tap of the coil a11 is connected with the cathode of the thyristor TH1, the anode of the thyristor TH1 is connected with the initial end of the coil a12, the initial end of the coil a21 is connected with the anode of the current diode D1 and the initial end of the coil a22 respectively, the cathode of the current diode D1 is connected with the end of the coil a21, the initial end of the coil a12 and the anode of the thyristor TH2 respectively, the center tap of the coil a22 is connected with the end of the coil a12, and the end of the coil a22 is connected with one end of the coil A3;
the center tap of the coil B11 is connected with the cathode of the thyristor TH3, the anode of the thyristor TH3 is connected with the initial end of the coil B12, the initial end of the coil B11 is connected with the anode of the flow diode D2 and the initial end of the coil B22 respectively, the cathode of the flow diode D2 is connected with the end of the coil B21, the initial end of the coil B12 and the anode of the thyristor TH4 respectively, the center tap of the cathode of the thyristor TH4 is connected with the end of the coil B22, and the end of the coil B22 is connected with one end of the coil B3;
the center tap of the coil C11 is connected with the cathode of the thyristor TH5, the anode of the thyristor TH5 is connected with the initial end of the coil C12, the initial end of the coil C11 is connected with the initial end of the coil C21, the tail end of the coil C11 is respectively connected with the anode of the current diode D3 and the initial end of the coil C22, the cathode of the current diode D3 is respectively connected with the tail end of the coil C21, the initial end of the coil C12 and the anode of the thyristor TH6, the center tap of the cathode of the thyristor TH6 is connected with the center tap of the coil C22, the tail end of the coil C22 is connected with the tail end of the coil C12, and the common end of the coil C3 is connected;
the other end of the coil A3 is connected to the other end of the coil B3 and the other end of the coil C3, respectively.
Compared with the prior art, the invention has the following characteristics:
1. because the magnetic circuits of the AC-DC iron cores are separated, the AC magnetic field can be indirectly controlled by controlling the DC bias magnetic field on the orthogonal iron cores, the no-load current of the AC magnetic field is close to the standard sinusoidal current waveform, the harmonic content is relatively small, and the noise level of the magnetic control reactor can be reduced;
2. each phase adopts a technology that the magnetic valve type controllable reactor coil is connected in parallel and then connected in series with the unsaturated iron core reactor coil, so that the alternating current magnetic flux flowing through the unsaturated intermediate column iron core is the sum of the alternating current magnetic fluxes of two columns, but the direct current magnetic flux of the magnetic valve type controllable reactor does not flow through the intermediate column iron core, the structure can reduce the magnetic valve type reactor coil and the number of turns, and further the power loss and the heating are reduced;
3. the mixed connection of the single-stage magnetic control reactor with a section of sectional area and the unsaturated iron core type reactor is adopted, so that the harmonic current content and the noise level can be further reduced.
Drawings
Fig. 1-2 are perspective views of the present invention, wherein fig. 2 does not have a coil mounted.
Fig. 3-4 are front views of the present invention, wherein fig. 4 does not have a coil mounted.
Fig. 5-6 are side views of the present invention, wherein fig. 6 does not have a coil mounted.
Fig. 7 is a top view of fig. 6 in accordance with the present invention.
Fig. 8 is a schematic circuit diagram of the present invention in use.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
The invention is given by figures 1-8, the invention comprises 3 groups of unidirectional reactors with the same structure, each group of unidirectional reactors comprises a middle iron core 1, a first side column iron core 2 and a second side column iron core 3 which are symmetrically arranged at two sides of the middle iron core 1, the middle iron core 1 is respectively connected with the first side column iron core 2 and the second side column iron core 3 through transverse magnetic yokes 6 at the upper end and the lower end, the centers of the first side column iron cores 2 along the length direction are respectively provided with a first magnetic valve 4a, the first side column iron cores at the upper side and the lower side of the first magnetic valve 4a are respectively wound with a first side column coil 7 which is symmetrically arranged, the centers of the second side column iron cores 3 along the length direction are respectively provided with a second magnetic valve 4b, the second side column iron cores at the upper side and the lower side of the second magnetic valve 4b are respectively wound with a second side column coil 8 which is symmetrically arranged, the middle part of the middle iron core 1 along the length direction is wound with a middle coil 9, and the corresponding iron cores between the adjacent groups of unidirectional reactors are mutually connected through a longitudinal magnetic yoke 5.
In order to ensure the use effect, the 3 groups of single-phase reactors are an A-phase reactor, a B-phase reactor and a C-phase reactor respectively, wherein:
the A-phase reactor further comprises a thyristor TH1, a thyristor TH2 and a freewheel diode D1, a first side column coil of the A-phase reactor is a coil A11 and a coil A12 respectively, the coil A11 is provided with a middle tap and is positioned above, the coil A12 is provided with no middle tap, a second side column coil is a coil A21 and a coil A22 respectively, the coil A22 is provided with a middle tap and is positioned below, the coil A21 is provided with no middle tap, and the middle coil of the A-phase reactor is a coil A3;
the phase B reactor further comprises a thyristor TH3, a thyristor TH4 and a freewheel diode D2, a first side column coil of the phase B reactor is a coil B11 and a coil B12 respectively, the coil B11 is provided with a middle tap and is positioned above, the coil B12 is not provided with a middle tap, a second side column coil is a coil B21 and a coil B22 respectively, the coil B22 is provided with a middle tap and is positioned below, the coil B21 is not provided with a middle tap, and the middle coil of the phase B reactor is a coil B3;
the C-phase reactor further comprises a thyristor TH5, a thyristor TH6 and a freewheel diode D3, the first side column coil of the C-phase reactor is a coil C11 and a coil C12 respectively, the coil C11 is provided with a middle tap and is located above, the coil C12 is not provided with a middle tap, the second side column coil is a coil C21 and a coil C22 respectively, the coil C22 is provided with a middle tap and is located below, the coil C21 is not provided with a middle tap, and the middle coil of the C-phase reactor is a coil C3.
The center tap of the coil A11 is connected with the cathode of the thyristor TH1, the anode of the thyristor TH1 is connected with the initial end of the coil A12, the initial end of the coil A11 is connected with the anode of the flow diode D1 and the initial end of the coil A22 respectively, the cathode of the flow diode D1 is connected with the end of the coil A21, the initial end of the coil A12 and the anode of the thyristor TH2 respectively, the center tap of the cathode of the thyristor TH2 is connected with the end of the coil A22, and the end of the coil A22 is connected with one end of the coil A3;
the center tap of the coil B11 is connected with the cathode of the thyristor TH3, the anode of the thyristor TH3 is connected with the initial end of the coil B12, the initial end of the coil B11 is connected with the anode of the flow diode D2 and the initial end of the coil B22 respectively, the cathode of the flow diode D2 is connected with the end of the coil B21, the initial end of the coil B12 and the anode of the thyristor TH4 respectively, the center tap of the cathode of the thyristor TH4 is connected with the end of the coil B22, and the end of the coil B22 is connected with one end of the coil B3;
the center tap of the coil C11 is connected with the cathode of the thyristor TH5, the anode of the thyristor TH5 is connected with the initial end of the coil C12, the initial end of the coil C11 is connected with the initial end of the coil C21, the tail end of the coil C11 is respectively connected with the anode of the current diode D3 and the initial end of the coil C22, the cathode of the current diode D3 is respectively connected with the tail end of the coil C21, the initial end of the coil C12 and the anode of the thyristor TH6, the center tap of the cathode of the thyristor TH6 is connected with the center tap of the coil C22, the tail end of the coil C22 is connected with the tail end of the coil C12, and the common end of the coil C3 is connected;
the other end of the coil A3 is connected to the other end of the coil B3 and the other end of the coil C3, respectively.
The total turns of the coil A11 and the coil A12 are equal, the total turns of the coil B11 and the coil B12 are equal, and the total turns of the coil C11 and the coil C12 are equal.
The tap ratio of the coil A11, the coil A22, the coil B11, the coil B22, the coil C11 and the coil C22 is between 10% and 20%, the middle tap is used for being connected with a thyristor, and the thyristor can change the magnetic saturation of the side column iron core by controlling the triggering angle to generate direct current magnetic flux.
The cross-sectional area of the first magnetic valve 4a is 50% -80% of the cross-sectional area of the first side column iron core of the rest part; the cross-sectional area of the second magnetic valve 4b is 50% -80% of the cross-sectional area of the second side column iron core of the rest.
The cross-sectional areas of the lateral yoke 6 and the longitudinal yoke 5 are 1.14 times the cross-sectional area of the leg core non-magnetic valve portion (the cross-sectional areas of the two leg core non-magnetic valve portions are equal).
The sectional area of the middle iron core 1 is more than 2.5 times of the sectional area of the magnetic valve part of the side column iron core, generally 2.5-3.0 times of the sectional area of the magnetic valve, and the middle column iron core has no magnetic valve, namely the middle iron core column has the same sectional area.
The spacing between two adjacent unidirectional reactors is equal, the spacing is 1.07 times of the width of a side column, the spacing refers to the width of a gap between two unidirectional reactor iron cores, and the width of the side column refers to the width of the iron cores in the parallel direction of the spacing.
In the foregoing description, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate an orientation or a positional relationship based on that shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be 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 invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying 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 such feature.
When the invention is used, the common end of the initial ends of the coil A11 and the coil A21, the common end of the initial ends of the coil B11 and the coil B21 and the common end of the initial ends of the coil C11 and the coil C21 are respectively connected with a A, B, C three-phase power supply; the thyristor TH1, the thyristor TH2, the freewheeling diode D1 and the coils A11, A12, A21 and A22 are connected to form a whole as a direct current control type magnetically controlled reactor of the A phase; coil A3 is an unsaturated iron core reactor coil of phase a; the thyristor TH3, the thyristor TH4, the freewheeling diode D2 and the coils B11, B12, B21 and B22 are connected to form a whole as a B-phase direct current control type magnetically controlled reactor; coil A3 is an unsaturated iron core reactor coil of phase B; the thyristor TH5, the thyristor TH6, the freewheeling diode D3 and the coils C11, C12, C21 and C22 are connected to form a whole as a C-phase direct current control type magnetically controlled reactor. Coil A3 is an unsaturated iron core reactor coil of phase C;
the direct-current control type magnetic control reactor and the unsaturated iron core reactor coil are connected into a power grid in series, the triggering angles of thyristors TH1 and TH2 are changed by taking an A phase as an example, the magnitude of direct-current magnetic fluxes passing through two side column iron cores can be changed, so that the magnetic conductivity of the two side column iron cores is changed, alternating-current currents flowing into a coil A3 are regulated, the direct-current magnetic fluxes in the two side column iron cores form a loop, the direct-current magnetic fluxes do not pass through a middle column iron core, the direct-current magnetic fluxes in coils A11, A12, A21 and A22 also do not pass through the coil A3, alternating-current magnetic fluxes in the two side column iron cores flow into the middle iron core, and therefore alternating-current induction electromotive force is generated in the coil A3, and the induction electromotive force of each turn in the coil A3 is the sum of induction electromotive force of each turn of the two side column iron core coils. The invention makes the alternating current magnetic flux flowing on the unsaturated middle iron core be the sum of the alternating current magnetic fluxes of the two side columns, and makes the direct current magnetic flux of the magnetic control reactor not flow through the middle iron core, the iron core structure can also reduce the coil and the number of turns of the magnetic valve type reactor, and further the power loss and the heating of the magnetic valve type reactor are reduced; besides, the invention adopts an orthogonal iron core type structure to separate the magnetic circuits of the alternating current and direct current iron cores, can indirectly control the alternating current magnetic field by controlling the direct current bias field on the orthogonal iron cores, enables the no-load current to be close to a standard sinusoidal current waveform, has relatively small harmonic content, can also reduce the noise level of the magnetic control reactor, and combines the advantages.
Claims (2)
1. The utility model provides a three-phase quadrature iron core formula hybrid magnetic control reactor, a serial communication port, it includes 3 groups of unidirectional electric reactors that the structure is the same, every group unidirectional electric reactor all includes middle iron core (1) and the first side column iron core (2) and the second side column iron core (3) of symmetry setting in middle iron core (1), middle iron core (1) are in the same place with first side column iron core (2) and second side column iron core (3) respectively through upper and lower lateral yoke (6), first side column iron core (2) are provided with first magnetic valve (4 a) along length direction's center, around being equipped with first side column coil (7) of symmetry setting on the first side column iron core of first magnetic valve (4 a) upper and lower both sides, the second side column iron core of second side column iron core (3) is provided with second magnetic valve (4 b) along length direction's center, around being equipped with second side column coil (8) of symmetry setting on the second side column iron core of second magnetic valve (4 b), middle iron core (1) is along length direction's middle part is equipped with middle coil (9) along length direction, the corresponding between adjacent group is through mutual reactance of longitudinal yoke (5) between each other;
the 3 groups of single-phase reactors are an A-phase reactor, a B-phase reactor and a C-phase reactor respectively, wherein:
the A-phase reactor further comprises a thyristor TH1, a thyristor TH2 and a freewheeling diode D1, a first side column coil of the A-phase reactor is a coil A11 and a coil A12 respectively, the coil A11 is provided with a middle tap and is positioned above, a second side column coil is a coil A21 and a coil A22 respectively, the coil A22 is provided with a middle tap and is positioned below, and a middle coil of the A-phase reactor is a coil A3;
the B-phase reactor further comprises a thyristor TH3, a thyristor TH4 and a freewheel diode D2, a first side column coil of the B-phase reactor is a coil B11 and a coil B12 respectively, the coil B11 is provided with a middle tap and is positioned above, a second side column coil is a coil B21 and a coil B22 respectively, the coil B22 is provided with a middle tap and is positioned below, and a middle coil of the B-phase reactor is a coil B3;
the C-phase reactor further comprises a thyristor TH5, a thyristor TH6 and a freewheel diode D3, a first side column coil of the C-phase reactor is a coil C11 and a coil C12 respectively, the coil C11 is provided with a middle tap and is positioned above, a second side column coil is a coil C21 and a coil C22 respectively, the coil C22 is provided with a middle tap and is positioned below, and a middle coil of the C-phase reactor is a coil C3;
the center tap of the coil A11 is connected with the cathode of the thyristor TH1, the anode of the thyristor TH1 is connected with the initial end of the coil A12, the initial end of the coil A11 is connected with the anode of the flow diode D1 and the initial end of the coil A22 respectively, the cathode of the flow diode D1 is connected with the end of the coil A21, the initial end of the coil A12 and the anode of the thyristor TH2 respectively, the center tap of the cathode of the thyristor TH2 is connected with the end of the coil A22, and the end of the coil A22 is connected with one end of the coil A3;
the center tap of the coil B11 is connected with the cathode of the thyristor TH3, the anode of the thyristor TH3 is connected with the initial end of the coil B12, the initial end of the coil B11 is connected with the anode of the flow diode D2 and the initial end of the coil B22 respectively, the cathode of the flow diode D2 is connected with the end of the coil B21, the initial end of the coil B12 and the anode of the thyristor TH4 respectively, the center tap of the cathode of the thyristor TH4 is connected with the end of the coil B22, and the end of the coil B22 is connected with one end of the coil B3;
the center tap of the coil C11 is connected with the cathode of the thyristor TH5, the anode of the thyristor TH5 is connected with the initial end of the coil C12, the initial end of the coil C11 is connected with the initial end of the coil C21, the tail end of the coil C11 is respectively connected with the anode of the current diode D3 and the initial end of the coil C22, the cathode of the current diode D3 is respectively connected with the tail end of the coil C21, the initial end of the coil C12 and the anode of the thyristor TH6, the center tap of the cathode of the thyristor TH6 is connected with the center tap of the coil C22, the tail end of the coil C22 is connected with the tail end of the coil C12, and the common end of the coil C3 is connected;
the other end of the coil A3 is respectively connected with the other end of the coil B3 and the other end of the coil C3;
the total turns of the coil A11 and the coil A12 are equal, the total turns of the coil B11 and the coil B12 are equal, and the total turns of the coil C11 and the coil C12 are equal.
2. The three-phase orthogonal iron core type hybrid magnetic control reactor according to claim 1, characterized in that the cross-sectional area of the first magnetic valve (4 a) is 50% -80% of the cross-sectional area of the rest first side column iron core; the cross-sectional area of the second magnetic valve (4 b) is 50% -80% of the cross-sectional area of the second side column iron core of the rest.
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| CN2263411Y (en) * | 1995-09-19 | 1997-09-24 | 武汉水利电力大学 | Magnetic valve type controlled reactor |
| JP2003229315A (en) * | 2002-02-01 | 2003-08-15 | Tohoku Electric Power Co Inc | Three-phase variable inductance device |
| CN201509086U (en) * | 2009-09-16 | 2010-06-16 | 郑州华电能控技术有限公司 | magnetically controlled reactor |
| CN202159981U (en) * | 2011-08-01 | 2012-03-07 | 中国船舶重工集团公司第七一二研究所 | Single-phase controllable saturable reactor |
| CN102982985A (en) * | 2012-12-11 | 2013-03-20 | 浙江大学 | Multi-tap composite excitation type controllable reactor |
| CN203415389U (en) * | 2013-08-23 | 2014-01-29 | 中国船舶重工集团公司第七一二研究所 | Magnetically controlled reactor with low harmonic characteristic |
| CN206497818U (en) * | 2017-02-10 | 2017-09-15 | 陈慧玲 | Novel magnetic control reactor |
| CN209766228U (en) * | 2019-06-10 | 2019-12-10 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Mixed type magnetically controlled reactor of three-phase quadrature iron core formula |
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