CN101714450A - Electrical design method of saturable reactor for direct current converter valve - Google Patents
Electrical design method of saturable reactor for direct current converter valve Download PDFInfo
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- 238000013461 design Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 67
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000004458 analytical method Methods 0.000 claims abstract description 9
- 239000011162 core material Substances 0.000 claims description 37
- 230000008859 change Effects 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 22
- 230000004907 flux Effects 0.000 claims description 9
- 238000012795 verification Methods 0.000 claims description 7
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000012938 design process Methods 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 230000005672 electromagnetic field Effects 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 238000012958 reprocessing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
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Abstract
The invention provides an electrical design method of a saturable reactor for a direct current converter valve, in particular to an electrical design method of a saturable reactor with a simple winding structure, thereby filling the blank of the filed in our country. The main electrical performance indexes of the saturable reactor are provided, the contents of the electrical design mainly comprise six main parts, namely original selection of an iron core, primary winding design, iron core zoom analysis, iron core air gap design, saturation segment analysis and the like, and a calibration and modification part; the design route is as follows: calculating to determine the structure size of equipment according to core performance parameters, adopting other parameters to calibrate and modify until meeting requirements, and designing the next part; and the design flow is strict and detailed, thereby realizing programming and modularization of design work.
Description
Technical field
The present invention relates to the electric power system devices field, relate in particular to a kind of electrical design method of saturable reactor for direct current converter valve.
Background technology
Saturable reactor is the critical component of protection thyristor converter valve in the super extra-high voltage direct-current transmission equipment.Its topmost function be restriction converter valve thyristor device when opening because the huge di/dt that the stray capacitance discharge causes, externally apply restriction under the situation of surge voltage and be applied to huge dv/dt on the thyristor device, the tasks such as all pressures of auxiliary triode thyristor module and inter-module simultaneously.
Saturable reactor electrical design target is the geometric parameter of and winding construction, core material parameter and winding unshakable in one's determination by choose reasonable etc., makes the reactor device satisfy the electric property requirement to saturable reactor that proposes based on relevant operating condition in the converter valve system.At present, the overall work of domestic saturable reactor also rests on the imitated stage, the work in research and development field as yet not system carry out, the foreign scholar delivered the scientific paper of some iron core characteristics researchs, but the electrical design method of system does not also form, and does not see relevant open report.And the core technology of the research and development of saturable reactor and manufacturing is grasped in the large scale electrical power unit supplier hand that can carry out the converter valve equipment supply in the world few in number, and this part technical data holds in close confidence.
Summary of the invention
The objective of the invention is: a kind of saturable reactor for converter valve electrical design method is provided, realizes the standardization of design process, standardization.
The iron core that The present invention be directed in the simplex winding form proposes its electrical design method around the shell-type structure of coil.This inductance coil that comprises non-linear iron core that may be summarized to be simple in structure.Therefore the action of electrical design mainly comprises core design and coil design two large divisions.
A kind of DC converter valve electrical design method of saturable reactor of the present invention, may further comprise the steps: iron core primary election, design of Windings, iron core refinement analysis, iron core air gap design and a saturated piecewise analysis step, it is characterized in that the electric property parameter index according to saturable reactor, determine the basic parameter or the device structure of reactor arrangement: fit, iron core and the coil material separately that comprises geometry form, structure building block, iron core and the coil of determining reactor is selected and index such as physical dimension; And after obtaining a parameter, whether meet the demands,, then revise initial setting, calculate again and verification, till all parameters all meet the demands, carry out the design of next part then if do not meet the demands with regard to other parameters of verification; The electric property parameter index of described saturable reactor comprises:
(1) reactor maximum voltage time product, promptly magnetic linkage changes maximum Δ Ψ=∫ Udt;
(2) reactor allows the maximum current I that flows through
Max
(3) reactor bears voltage max U
Max
(4) reactor air core inductor L
Air
(5) reactor D.C. resistance R
Cu
(6) the main sense of reactor is with the change curve Lm (i) of electric current;
(7) reactor iron loss resistance is with the change curve Re (i) of electric current;
(8) stray capacitance Cf between the reactor end.
Specifically may further comprise the steps:
At first obtain the electric property parameter index of saturable reactor, as the initial conditions of whole design process;
The first step according to the weber number, is determined iron core equivalence linkage area, in conjunction with the coil turn of setting, determines the required core area of each reactor;
Second step, a design of Windings, needs are determined external diameter, equivalent magnetic circuit length and winding single turn area of turn-to-turn distance, circle wheelbase and the circle span and the hollow tube of winding;
Then according to the area of a core area and a winding, and in conjunction with winding and assembly relation unshakable in one's determination, whether need adjust unshakable in one's determination area, if do not need to adjust, then continue next step if checking, adjust if desired, gets back to the first step so, adjusts once more;
In the 3rd step, coiling iron core thickness is selected in refinement unshakable in one's determination, and physical dimension;
In the 4th step, the selection of air gap unshakable in one's determination is in conjunction with the core material of tentatively choosing;
In the 5th step, saturated piecewise analysis unshakable in one's determination on the BH curve basis of selected core material, is calculated inductance and eddy current resistance change curve;
Inductance and the eddy current resistance change curve that calculates according to selected material then, check in conjunction with the inductance of saturable reactor and the requirement of eddy current resistance change curve,, then need to readjust the selection of core material if misfit, got back to for the 3rd step and recomputate, readjust; If coincide, then electrical design work is finished.
Method of the present invention also comprises verification correction step:
After second step was finished, according to the area of a core area and a winding, whether needed adjust unshakable in one's determination area, if do not need to adjust, then continue next step if checking, adjust if desired, gets back to the first step so, adjusts once more;
After the 5th step was finished, the inductance and the eddy current resistance change curve that calculate according to selected material, check in conjunction with the inductance of saturable reactor and the requirement of eddy current resistance change curve, if misfit, then need to readjust the selection of core material, got back to for the 3rd step and recomputate, readjust; If coincide, then electrical design work is finished.
Specifically may further comprise the steps:
(1) on the basis that the converter valve system electrical is analyzed, obtains the electric property parameter index that saturable reactor need satisfy, as the input parameter of whole implementation;
(2) according to the weber number of required saturable reactor, determine iron core equivalence linkage area, in conjunction with the coil turn of setting, determine the core area that each reactor is required;
Wherein:
Be the weber number, in the design input, provide; N is a coil turn, considers structural lightly, generally selects 3～4 circles; B is a magnetic flux density unshakable in one's determination, is determined by the core material performance;
The design of (3) winding space layouts, the turn-to-turn of determining winding height H grp and the width W grp behind d4, circle wheelbase d5, circle span d6, the outer diameter D ww of coil, the casting insulated material of winding;
After coil turn is selected,, can determine the magnitude of voltage that single-turn circular coil bears according to the maximum that saturable reactor bears voltage, the dielectric strength of epoxy resin is by its material properties decision, and the two is divided by, and considers certain nargin coefficient again, can determine the turn-to-turn distance, the circle wheelbase, the circle span, wherein, saturable reactor bears voltage max, epoxy numerical value dielectric strength, the nargin coefficient of each physical dimension is the design initial conditions;
The current density that allows the maximum current that flows through and coil method to allow according to saturable reactor, can determine the equivalent cross-sectional area of a winding, and then the equivalent through-flow diameter Dwire of definite winding, a kind of structural shape commonly used is to adopt the metal tubes of hollow as coil in the saturable reactor, heat dissipation pipe's diameter Dwater in can determining according to the heat radiation requirement, can determine the outer diameter D ww of a winding according to following formula:
Wherein, saturable reactor allows the maximum current that flows through, the current density of material, and interior heat dissipation pipe's diameter is initial conditions, on this basis, can further calculate height and thickness behind the casting insulated material of winding:
H
grp＝ND
ww+(N-1)d
4+2d
5 (3)
W
grp＝D
ww+2d
6 (4)
Single turn area Sw, length L w and the width Rw of a winding are determined in the design of (4) winding single turn parameters;
Can calculate the single turn area Sw of a winding according to following formula:
Wherein, Lair is an air core inductor, and μ 0 is a magnetic permeability, is initial conditions, and Leq is the air core inductor equivalent magnetic circuit, and computing formula is as follows:
L
eq＝2(H
grp+W
grp) (6)
Can calculate the length and the width of single-turn winding according to following two formulas:
In the formula, Rcu is a winding direct current substitutional resistance, and ρ cu is the resistivity of winding material, is input parameter;
If Sw＞S, then design meets the demands, and proceeds next step, otherwise carries out design of Windings again one time;
(5) theoretic throat Wfe unshakable in one's determination is determined in refinement unshakable in one's determination, actual (real) thickness C unshakable in one's determination, and width F, height G, single iron core cake length D, quantity Nfe unshakable in one's determination:
W
fe＝S/L
fe (9)
Wherein Lfe is a total length unshakable in one's determination, and its value requires less than Lw; According to F 〉=Wgrp, three constraintss of G 〉=Hgrp and C 〉=Wfe are selected the cake unshakable in one's determination of moulding, according to cake length D unshakable in one's determination, in conjunction with thickness d 7 between cake unshakable in one's determination, can determine quantity Nfe unshakable in one's determination:
(6) air gap delta unshakable in one's determination is determined in the calculating of air gap unshakable in one's determination.：
At first calculate the relative permeability of saturable reactor:
Equivalent inductance unshakable in one's determination when wherein Lm is a unsaturation unshakable in one's determination, secondly, calculate inner magnetic flux density unshakable in one's determination:
Wherein Im is a keen current unshakable in one's determination, searches the working point of this moment and the magnetic field intensity Hfe of correspondence thereof in selected BH curve unshakable in one's determination, calculates the relativepermeability of this moment:
Can calculate air gap unshakable in one's determination according to following formula:
(7) determine the relation curve Lm (i) that main inductance changes with winding current i:
Wherein, AC and k represent cross-sectional area unshakable in one's determination and lamination coefficient respectively, by selected characteristic unshakable in one's determination decision; Ha is an average magnetic field intensity, is calculated as follows:
(8) determine the relation curve Re (i) that iron loss resistance changes with electric current:
Wherein, ρ fe is a resistivity unshakable in one's determination, and p is a coiling thickness unshakable in one's determination, and Bs is a saturation flux density unshakable in one's determination, is intrinsic property unshakable in one's determination; Bav (t) is different average flux density unshakable in one's determination constantly, according to circuital law, can be determined by correspondence winding current constantly, so just can set up the corresponding relation of Re and i;
(9) according to the selected core material and the material of air gap unshakable in one's determination, calculate the inductance and the eddy current resistance change curve of saturable reactor, requirement in conjunction with the inductance and the eddy current resistance change curve of saturable reactor? check, if misfit, then need to readjust the selection of core material, get back to step (5), readjust; If coincide, then electrical design work is finished;
(10) the determining of stray capacitance Cf between the saturable reactor end:
Stray capacitance can be estimated according to following formula by the structures shape of reactor:
Wherein, ε is a dielectric constant of air; Sc is the busbar area; Dc is the busbar spacing, if the estimation result requires at the same order of magnitude with the design input, it is qualified then to design; If gap is bigger, then returns step (4) and design again;
(11), finish the electrical design of saturable reactor with above-mentioned each geometric parameter, material parameter, the structural parameters output of unshakable in one's determination and winding.
Wherein, described stray capacitance is by the structures shape of reactor, adopt the Numerical Calculation of Electromagnetic Fields method to carry out modeling and calculating, at first, saturable reactor is carried out whole modeling, second step was carried out the numerical value mesh generation to model, the 3rd step applied the border incentive condition, the 4th step number value is found the solution, and is last, obtains stray capacitance through reprocessing.
Wherein, this method for designing can be used for the electrical design of simplex winding structure saturable reactor, also can be used for a Winding Design job to the saturable reactor double-winding structure, and the electrical design of double-winding structure is played booster action.
The invention has the beneficial effects as follows:
1, design cycle is rigorous full and accurate, has realized the sequencing and the modularization of design work;
2, the mentality of designing of the science of " determine the device structure size according to the core capabilities calculation of parameter, other parameters are carried out the verification correction " has been adopted in design work.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is the schematic flow sheet of electrical design method of saturable reactor for direct current converter valve of the present invention.
Fig. 2 is certain BH curve unshakable in one's determination.
Embodiment
The implementation of method for designing proposed by the invention is as follows, as shown in Figure 1.
At first obtain the requirement of the electric parameter of saturable reactor, as the input of whole implementation.
The first step according to the weber number, is determined iron core equivalence linkage area, in conjunction with the coil turn of setting, determines the required core area of each reactor.
Second step, a design of Windings.External diameter, equivalent magnetic circuit length and a winding single turn area of needing turn-to-turn distance, circle wheelbase and the circle span and the hollow tube of definite winding.
Then according to the area of a core area and a winding, and in conjunction with winding and assembly relation unshakable in one's determination, whether need adjust unshakable in one's determination area, if do not need to adjust, then continue next step if checking.Adjust if desired, get back to the first step so, adjust once more.
The 3rd step, refinement unshakable in one's determination.Select coiling iron core thickness, and physical dimension.
In the 4th step, the selection of air gap unshakable in one's determination is in conjunction with the core material of tentatively choosing.
The 5th step, saturated piecewise analysis unshakable in one's determination.On the BH curve basis of selected core material, calculate inductance and eddy current resistance change curve, as shown in Figure 2.
Inductance and the eddy current resistance change curve that calculates according to selected material then, check in conjunction with the inductance of saturable reactor and the requirement of eddy current resistance change curve, if misfit, the selection that then needs to readjust core material got back to for the 3rd step, readjusted; If coincide, then electrical design work is finished.
Each geometric parameter, material parameter, the structural parameters output of unshakable in one's determination and winding can be finished electrical design work.
Fig. 2 is certain BH curve unshakable in one's determination, the BH curve is magnetic flux density B unshakable in one's determination and magnetic field intensity H variation relation curve, although different BH curves unshakable in one's determination are had nothing in common with each other, but the Changing Pattern of curve is close, that is, initial period is a linear change, along with the increase of magnetic field intensity, progress into saturated section, B and H are non-linear relation.
Invention has been described according to specific exemplary embodiment herein.It will be conspicuous carrying out suitable replacement to one skilled in the art or revise under not departing from the scope of the present invention.Exemplary embodiment only is illustrative, rather than to the restriction of scope of the present invention, scope of the present invention is by appended claim definition.
Claims (6)
1. DC converter valve electrical design method of saturable reactor, may further comprise the steps: iron core primary election, design of Windings, iron core refinement analysis, iron core air gap design and a saturated piecewise analysis step, it is characterized in that the electric property parameter index according to saturable reactor, determine the basic parameter or the device structure of reactor arrangement: fit, iron core and the coil material separately that comprises geometry form, structure building block, iron core and the coil of determining reactor is selected and index such as physical dimension; And after obtaining a parameter, whether meet the demands,, then revise initial setting, calculate again and verification, till all parameters all meet the demands, carry out the design of next part then if do not meet the demands with regard to other parameters of verification; The electric property parameter index of described saturable reactor comprises:
(1) reactor maximum voltage time product, promptly magnetic linkage changes maximum Δ Ψ=∫ Udt;
(2) reactor allows the maximum current I that flows through
Max
(3) reactor bears voltage max U
Max
(4) reactor air core inductor L
Air
(5) reactor D.C. resistance R
Cu
(6) the main sense of reactor is with the change curve Lm (i) of electric current;
(7) reactor iron loss resistance is with the change curve Re (i) of electric current;
(8) stray capacitance Cf between the reactor end.
2. method for designing as claimed in claim 1 is characterized in that may further comprise the steps:
At first obtain the electric property parameter index of saturable reactor, as the initial conditions of whole design process;
The first step according to the weber number, is determined iron core equivalence linkage area, in conjunction with the coil turn of setting, determines the required core area of each reactor;
Second step, a design of Windings, needs are determined external diameter, equivalent magnetic circuit length and winding single turn area of turn-to-turn distance, circle wheelbase and the circle span and the hollow tube of winding;
Then according to the area of a core area and a winding, and in conjunction with winding and assembly relation unshakable in one's determination, whether need adjust unshakable in one's determination area, if do not need to adjust, then continue next step if checking, adjust if desired, gets back to the first step so, adjusts once more;
In the 3rd step, coiling iron core thickness is selected in refinement unshakable in one's determination, and physical dimension;
In the 4th step, the selection of air gap unshakable in one's determination is in conjunction with the core material of tentatively choosing;
In the 5th step, saturated piecewise analysis unshakable in one's determination on the BH curve basis of selected core material, is calculated inductance and eddy current resistance change curve;
Inductance and the eddy current resistance change curve that calculates according to selected material then, check in conjunction with the inductance of saturable reactor and the requirement of eddy current resistance change curve,, then need to readjust the selection of core material if misfit, got back to for the 3rd step and recomputate, readjust; If coincide, then electrical design work is finished.
3. method for designing as claimed in claim 2 is characterized in that also comprising verification correction step:
After second step was finished in claim 2, according to the area of a core area and a winding, whether needed adjust unshakable in one's determination area, if do not need to adjust, then continue next step if checking, adjust if desired, gets back to the first step so, adjusts once more;
In claim 2 the 5th the step be finished after, the inductance and the eddy current resistance change curve that calculate according to selected material, check in conjunction with the inductance of saturable reactor and the requirement of eddy current resistance change curve, if misfit, then need to readjust the selection of core material, got back to for the 3rd step and recomputate, readjust; If coincide, then electrical design work is finished.
4. as the described method of claim 2-3, specifically may further comprise the steps:
(1) on the basis that the converter valve system electrical is analyzed, obtains the electric property parameter index that saturable reactor need satisfy, as the input parameter of whole implementation;
(2) according to the weber number of required saturable reactor, determine iron core equivalence linkage area, in conjunction with the coil turn of setting, determine the core area that each reactor is required;
Wherein:
Be the weber number, in the design input, provide; N is a coil turn, considers structural lightly, generally selects 3～4 circles; B is a magnetic flux density unshakable in one's determination, is determined by the core material performance;
The design of (3) winding space layouts, the turn-to-turn of determining winding height H grp and the width W grp behind d4, circle wheelbase d5, circle span d6, the outer diameter D ww of coil, the casting insulated material of winding;
After coil turn is selected,, can determine the magnitude of voltage that single-turn circular coil bears according to the maximum that saturable reactor bears voltage, the dielectric strength of epoxy resin is by its material properties decision, and the two is divided by, and considers certain nargin coefficient again, can determine the turn-to-turn distance, the circle wheelbase, the circle span, wherein, saturable reactor bears voltage max, epoxy numerical value dielectric strength, the nargin coefficient of each physical dimension is the design initial conditions;
The current density that allows the maximum current that flows through and coil method to allow according to saturable reactor, can determine the equivalent cross-sectional area of a winding, and then the equivalent through-flow diameter Dwire of definite winding, a kind of structural shape commonly used is to adopt the metal tubes of hollow as coil in the saturable reactor, heat dissipation pipe's diameter Dwater in can determining according to the heat radiation requirement, can determine the outer diameter D ww of a winding according to following formula:
Wherein, saturable reactor allows the maximum current that flows through, the current density of material, and interior heat dissipation pipe's diameter is initial conditions, on this basis, can further calculate height and thickness behind the casting insulated material of winding:
H
grp＝ND
ww+(N-1)d
4+2d
5 (3)
W
grp＝D
ww+2d
6 (4)
Single turn area Sw, length L w and the width Rw of a winding are determined in the design of (4) winding single turn parameters;
Can calculate the single turn area Sw of a winding according to following formula:
Wherein, Lair is an air core inductor, and μ 0 is a magnetic permeability, is initial conditions, and Leq is the air core inductor equivalent magnetic circuit, and computing formula is as follows:
L
eq＝2(H
grp+W
grp) (6)
Can calculate the length and the width of single-turn winding according to following two formulas:
In the formula, Rcu is a winding direct current substitutional resistance, and ρ cu is the resistivity of winding material, is input parameter;
If Sw＞S, then design meets the demands, and proceeds next step, otherwise carries out design of Windings again one time;
(5) theoretic throat Wfe unshakable in one's determination is determined in refinement unshakable in one's determination, actual (real) thickness C unshakable in one's determination, and width F, height G, single iron core cake length D, quantity Nfe unshakable in one's determination:
W
fe＝S/L
fe (9)
Wherein Lfe is a total length unshakable in one's determination, and its value requires less than Lw; According to F 〉=Wgrp, three constraintss of G 〉=Hgrp and C 〉=Wfe are selected the cake unshakable in one's determination of moulding, according to cake length D unshakable in one's determination, in conjunction with thickness d 7 between cake unshakable in one's determination, can determine quantity Nfe unshakable in one's determination:
(6) air gap delta unshakable in one's determination is determined in the calculating of air gap unshakable in one's determination.：
At first calculate the relative permeability of saturable reactor:
Equivalent inductance unshakable in one's determination when wherein Lm is a unsaturation unshakable in one's determination, secondly, calculate inner magnetic flux density unshakable in one's determination:
Wherein Im is a keen current unshakable in one's determination, searches the working point of this moment and the magnetic field intensity Hfe of correspondence thereof in selected BH curve unshakable in one's determination, calculates the relativepermeability of this moment:
Can calculate air gap unshakable in one's determination according to following formula:
(7) determine the relation curve Lm (i) that main inductance changes with winding current i:
Wherein, AC and k represent cross-sectional area unshakable in one's determination and lamination coefficient respectively, by selected characteristic unshakable in one's determination decision; Ha is an average magnetic field intensity, is calculated as follows:
(8) determine the relation curve Re (i) that iron loss resistance changes with electric current:
Wherein, ρ fe is a resistivity unshakable in one's determination, and p is a coiling thickness unshakable in one's determination, and Bs is a saturation flux density unshakable in one's determination, is intrinsic property unshakable in one's determination; Bav (t) is different average flux density unshakable in one's determination constantly, according to circuital law, can be determined by correspondence winding current constantly, so just can set up the corresponding relation of Re and i;
(9) according to the selected core material and the material of air gap unshakable in one's determination, calculate the inductance and the eddy current resistance change curve of saturable reactor, requirement in conjunction with the inductance and the eddy current resistance change curve of saturable reactor? check, if misfit, then need to readjust the selection of core material, get back to step (5), readjust; If coincide, then electrical design work is finished;
(10) the determining of stray capacitance Cf between the saturable reactor end:
Stray capacitance can be estimated according to following formula by the structures shape of reactor:
Wherein, ε is a dielectric constant of air; Sc is the busbar area; Dc is the busbar spacing, if the estimation result requires at the same order of magnitude with the design input, it is qualified then to design; If gap is bigger, then returns step (4) and design again;
(11), finish the electrical design of saturable reactor with above-mentioned each geometric parameter, material parameter, the structural parameters output of unshakable in one's determination and winding.
5. method for designing as claimed in claim 4, it is characterized in that the structures shape of described stray capacitance by reactor, adopt the Numerical Calculation of Electromagnetic Fields method to carry out modeling and calculating, at first, saturable reactor is carried out whole modeling, second step was carried out the numerical value mesh generation to model, the 3rd step applied the border incentive condition, the 4th step number value is found the solution, and is last, obtains stray capacitance through reprocessing.
6. as the described method for designing of claim 1-5, it is characterized in that this method for designing can be used for the electrical design of simplex winding structure saturable reactor, also can be used for a Winding Design job, the electrical design of double-winding structure is played booster action the saturable reactor double-winding structure.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916309A (en) * | 2010-07-29 | 2010-12-15 | 中国电力科学研究院 | Design method for electric performance of saturable reactor for converter valve |
| CN101923594A (en) * | 2010-08-23 | 2010-12-22 | 中国电力科学研究院 | Method for analyzing performance of saturation reactor for converter valve under the condition of switching on thyristor |
| CN101923593A (en) * | 2010-08-23 | 2010-12-22 | 中国电力科学研究院 | Performance analysis method of saturated reactor for converter valve in thyristor impedance state |
| CN101923592A (en) * | 2010-08-20 | 2010-12-22 | 中国电力科学研究院 | Mechanical performance design method of saturated reactor for converter valve |
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