CN104658747A - Saturation resistor with simple structure - Google Patents
Saturation resistor with simple structure Download PDFInfo
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- CN104658747A CN104658747A CN201510103299.8A CN201510103299A CN104658747A CN 104658747 A CN104658747 A CN 104658747A CN 201510103299 A CN201510103299 A CN 201510103299A CN 104658747 A CN104658747 A CN 104658747A
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- saturable reactor
- resistance
- thyristor
- iron core
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention relates to a saturation resistor with a simple structure. The saturation resistor with the simple structure comprises a closed loop iron core, wherein coils are respectively arranged on two iron core limbs of the closed loop iron core; the turns per coil are the same; dotted terminals of the coils in the two iron core limbs are connected with a terminal I, and resistances are respectively connected between opposite terminals of the coils in the two iron core limbs and a terminal II; the resistance values of the resistances are the same; one resistance R1 is connected with a positive thyristor D1 in parallel, and the other resistance R2 is connected with a reverse thyristor D2 in parallel; the control end of each thyristor is connected with a control circuit; the control circuit controls the size of a trigger angle of each thyristor, so that the size of the reactive value of the saturation resistor can be continuously adjusted.
Description
Technical field
The present invention relates to electric power system and send power transformation technology field, particularly the simple saturable reactor of a kind of structure.
Background technology
The application of reactor in electric power system widely.Series reactor can limiting short-circuit current; Shunt reactor can over-voltage; Reactor is combined with electric capacity can form filter circuit.In some applications, the reactance value of reactor is changeless; In some applications, the reactance value of reactor constantly should regulate along with the change of power system operation mode.Controllable transducer that reactance value can regulate continuously (also referred to as: saturable reactor, magnet controlled reactor) be important subject.
Saturable reactor utilizes the saturation characteristic of saturable reactor closed loop iron core to change the reactance value of reactor.Had many saturable reactors to be suggested, Chinese Water Conservancy water power publishing house publishes Cai Xuansan, Gao Yuenong work " controllable transducer principle, a design and application " book for 2008 and has done summary to saturable reactor.But existing saturable reactor complex structure, manufacturing process is complicated.Contradiction between saturable reactor performance and price is not easy to design and coordinates.
Summary of the invention
Object of the present invention, exactly for solving the problem, provides a kind of structure simply, easily to realize the saturable reactor of optimal design.
For achieving the above object, the present invention is in the following way:
The simple saturable reactor of a kind of structure, it is single-phase, comprise saturable reactor closed loop iron core, saturable reactor closed loop iron core has the iron core column that two sectional areas are equal at least, and these two iron core column have at least separately can form a magnetic flux closed loop without the other side's iron core column; These two iron core column have coil respectively; Described each coil turn is identical;
The Same Name of Ends splicing ear I of two iron core column coils, different name end and a resistance of connecting respectively between terminal II of two iron core column coils; The resistance value of described two resistance is identical;
A wherein resistor coupled in parallel forward thyristor, another resistance is oppositely thyristor in parallel then; The control end of described each thyristor is all connected with control circuit;
Control circuit controls the size at each IGBT group angle, realizes the size regulating saturable reactor reactance value continuously.
The resistance value of described each resistance is greater than zero, is less than Rmax=U2/I 1; U2 is the maximum withstand voltage of thyristor, and I 1 is monocoil exciting current peak value under saturable reactor rated voltage condition;
When described control circuit controls two thyristor full cut-ofves, two thyristors do not work, and the direct current in each coil equals zero, and saturable reactor has maximum Zmax;
When control circuit controls the full conducting of each thyristor, the direct current flowing through each coil reaches design maximum value, and saturable reactor has minimum value Zmin;
Control circuit controls the size of each thyristor rectifier amount, thus controls the size of direct current in each coil, realizes the size controlling quick saturable reactor reactance value;
The size of each thyristor rectifier amount of control circuit continuous control, thus the size of direct current in each coil of continuous control, realize the continuous adjustment of saturable reactor reactance value, saturable reactor reactance value regulates between the minimum and maximum, changes.
Described each resistance adopts piezo-resistance, and the deboost of piezo-resistance is less than U2.
Described each resistance adopts bi-directional voltage stabilizing pipe to replace, and the burning voltage of bi-directional voltage stabilizing pipe is less than U2.
Described closed loop iron core is one.
Described closed loop iron core adopts magnet valve structure.
Described two thyristor two ends piezo-resistance in parallel or bi-directional voltage stabilizing pipe.
The antihunt circuit of described two thyristor two ends parallel resistances and capacitances in series.
The simple saturable reactor of a kind of structure, it adopts the simple saturable reactor of arbitrary described phase structure above to form the simple three-phase saturation electric reactor of structure.
The invention has the beneficial effects as follows: saturable reactor structure is simple, and manufacturing process is simple.Utilize resistance to form the AC power of bias voltage as saturable reactor direct current, method is simple.Resistance only needs smaller power consumption, can ensure that saturable reactor normally works.The resistance value that resistance selection is less, the requirement of withstand voltage of thyristor, just along with reduction, can reduce the price of thyristor.The resistance value that resistance selection is larger, can shorten saturable reactor transient state time.By the optimal design of resistance size, the contradiction namely between tunable saturable reactor transient state time and saturable reactor manufacturing cost; Improve the cost performance of saturable reactor; Facilitate the optimal design of saturable reactor.
Accompanying drawing explanation
Fig. 1 represents the simple saturable reactor of the first structure.
Wherein, 1. saturable reactor terminal I, 2. saturable reactor terminal II, 3. saturable reactor iron core, 4. control circuit.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention will be further described.
The structure of the simple saturable reactor of a kind of structure and connected mode are as shown in Figure 1.Comprise saturable reactor terminal I 1, saturable reactor terminal II 2, saturable reactor closed loop iron core 3, control circuit 4.Saturable reactor closed loop iron core 3 has the iron core column that two sectional areas are equal, all have coil at least; These two iron core column have at least separately can form a magnetic flux closed loop without the other side's iron core column.Wherein an iron core column there is coil L1, another root iron core column has coil L2; The equal turn numbers of coil L1, coil L2.
Closed loop iron core 3 can be mutually do not have aisled two closed loop iron cores, such as 1: two square shape iron core.Also can be one, mutual aisled closed loop iron core; Such as 2: three iron core column, iron core column two ends have yoke to be communicated with three iron core column, and any two iron core column can both form magnetic flux closed loop mutually, but have two each self-formings of energy at least without the closed loop of the other side's iron core column.Such as 3: four iron core column, iron core column two ends have yoke to be communicated with four iron core column, and any two iron core column can both form magnetic flux closed loop mutually, but have two each self-formings of energy at least without the closed loop of the other side's iron core column, as shown in Figure 1.
After coil L1 Same Name of Ends and coil L2 Same Name of Ends link together, splicing ear I 1; Coil L1 different name end and coil L2 different name end be splicing ear II2 after series resistance R1, resistance R2 respectively.The resistance value of resistance R1, resistance R2 is equal.Resistance R1 forward thyristor in parallel D1, resistance R1 oppositely thyristor D2 in parallel; The trigger terminal connection control circuit 4 respectively of thyristor D1 and thyristor D2, control circuit 4 controls the size of thyristor D1 and thyristor D2 Trigger Angle, realizes the size regulating thyristor D1 and thyristor D2 rectification flow continuously.
If the simple saturable reactor rated voltage of structure is a U1, a kind of structure simple saturable reactor access rated voltage is the system of U1.When control circuit 4 controls thyristor D1 and thyristor D2 full cut-off, thyristor D1 and thyristor D2 rectification circuit do not work, and the direct current in coil L1, coil L2 equals zero.Saturable reactor has maximum reactance value Zmax.
When control circuit 4 controls the full conducting of thyristor D1 and thyristor D2, flow through coil L1, the direct current of coil L2 reaches design maximum value.Saturable reactor has minimum reactance value Zmin.
Control circuit 4 controls the size of thyristor D1 and thyristor D2 rectification flow, can the size of direct current in control coil L1, coil L2, realizes the size controlling saturable reactor reactance value.The size of control circuit 4 continuous control thyristor D1 and thyristor D2 rectification flow, can the size of direct current in continuous control coil L1, coil L2, realize the continuous adjustment of saturable reactor reactance value, saturable reactor reactance value regulates between the minimum and maximum, changes.
Can find out, make the resistance R1 in Fig. 1, the resistance value of resistance R2 equals zero, thyristor D1 and thyristor D2 both end voltage equal zero, no matter how control circuit 4 works, rectification circuit all can not produce direct current.Visible, the resistance R1 of the simple saturable reactor of a kind of structure, resistance R2 provide the alternating-current voltage source producing direct current.Resistance R1, resistance R2 must be greater than zero, and the simple saturable reactor of a kind of structure could work.The resistance of resistance R1, resistance R2 is larger, produces the alternating-current voltage source voltage of direct current larger, thyristor D1 and thyristor D2 both end voltage larger.In order to limit thyristor D1 and thyristor D2 both end voltage, reduce thyristor D1 and thyristor D2 price, the resistance of resistance R1, resistance R2 needs restriction.The resistance value of resistance R1, resistance R2 must not be greater than Rmax=U2/I 1; U2 is the maximum withstand voltage of thyristor, and I 1 is the exciting current peak value of saturable reactor rated voltage condition lower coil L1.Experiment shows, no matter the size that control circuit 4 controls thyristor D1 and thyristor D2 Trigger Angle is how many, flows through resistance R1, the normal current of resistance R2 is all less than I 1; Like this, no matter the size that control circuit 4 controls thyristor D1 and thyristor D2 Trigger Angle is how many, the power consumption of resistance R1, resistance R2 is not more than Wmax=R1*I 1*I 1.Because thyristor two ends only need very small voltage, saturable reactor can normally work, so the resistance of resistance R1, resistance R2 can the little a lot of numerical value of Selection radio Rmax.Like this, resistance R1, resistance R2 only need smaller power consumption, can ensure that saturable reactor normally works.The resistance value that resistance selection is less, the requirement of withstand voltage of thyristor, just along with reduction, can reduce the price of thyristor.Otherwise the resistance value that resistance selection is larger, can shorten saturable reactor transient state time.By the optimal design of resistance size, the contradiction namely between tunable saturable reactor transient state time and saturable reactor manufacturing cost; Improve the cost performance of saturable reactor; Facilitate the optimal design of saturable reactor.
Resistance R1, resistance R2 resistance are little, and saturable reactor transient state time is long; Resistance R1, resistance R2 resistance are large, and saturable reactor transient state time is short; Resistance R1, choosing of resistance R2 resistance need overall balance.By the design of resistance size, reduce saturable reactor transient state time; Facilitate the optimal design of saturable reactor characteristic.
Thyristor D1 and thyristor D2 two ends can piezo-resistances in parallel (or bi-directional voltage stabilizing pipe), and thyristor D1 and thyristor D2 two ends can also the antihunt circuits of parallel resistance and capacitances in series; To protect thyristor D1 and thyristor D2.This is common knowledge, no longer burden.Experiment shows, thyristor D1 and thyristor D2 two ends piezo-resistance in parallel (or bi-directional voltage stabilizing pipe), can improve the reaction speed of saturable reactor.
Can find out, resistance R1, resistance R2 adopt piezo-resistance, and the deboost of piezo-resistance is less than U2, and the simple saturable reactor of a kind of structure can normally work.
Can find out, resistance R1, resistance R2 adopt bi-directional voltage stabilizing pipe to replace, and the burning voltage of bi-directional voltage stabilizing pipe is less than U2, and the simple saturable reactor of a kind of structure also can normally work.
Closed loop iron core 3 can adopt magnet valve structure, to improve current harmonics characteristic.It is common knowledge that magnet valve structure improves magnetic control saturable reactor current harmonics characteristic, no longer burden.
The simple saturable reactor of a kind of structure shown in Fig. 1 is single-phase saturable reactor magnetic.Single-phase saturable reactor can be generalized to three-phase saturation electric reactor.Promotion method is common knowledge, no longer burden.
The simple saturable reactor of a kind of structure of the present invention can manufacture and design by prior art, can realize completely, have broad prospect of application.
Claims (10)
1. the simple saturable reactor of structure, it is characterized in that, it is single-phase, comprises saturable reactor closed loop iron core, saturable reactor closed loop iron core has the iron core column that two sectional areas are equal at least, and these two iron core column have at least separately can form a magnetic flux closed loop without the other side's iron core column; These two iron core column have coil respectively; Described each coil turn is identical;
The Same Name of Ends splicing ear I of two iron core column coils, different name end and a resistance of connecting respectively between terminal II of two iron core column coils; The resistance value of described two resistance is identical;
A wherein resistor coupled in parallel forward thyristor, another resistance is oppositely thyristor in parallel then; The control end of described each thyristor is all connected with control circuit;
Control circuit controls the size at each IGBT group angle, realizes the size regulating saturable reactor reactance value continuously.
2. the simple saturable reactor of a kind of structure as claimed in claim 1, is characterized in that, the resistance value of described each resistance is greater than zero, is less than Rmax=U2/I1; U2 is the maximum withstand voltage of thyristor, and I1 is monocoil exciting current peak value under saturable reactor rated voltage condition.
3. the simple saturable reactor of a kind of structure as claimed in claim 1, is characterized in that, when described control circuit controls two thyristor full cut-ofves, two thyristors do not work, and the direct current in each coil equals zero, and saturable reactor has maximum Zmax;
When control circuit controls the full conducting of each thyristor, the direct current flowing through each coil reaches design maximum value, and saturable reactor has minimum value Zmin;
Control circuit controls the size of each thyristor rectifier amount, thus controls the size of direct current in each coil, realizes the size controlling quick saturable reactor reactance value;
The size of each thyristor rectifier amount of control circuit continuous control, thus the size of direct current in each coil of continuous control, realize the continuous adjustment of saturable reactor reactance value, saturable reactor reactance value regulates between the minimum and maximum, changes.
4. the simple saturable reactor of a kind of structure as claimed in claim 1, is characterized in that, described each resistance adopts piezo-resistance, and the deboost of piezo-resistance is less than U2.
5. the simple saturable reactor of a kind of structure as claimed in claim 1, is characterized in that, described each resistance adopts bi-directional voltage stabilizing pipe to replace, and the burning voltage of bi-directional voltage stabilizing pipe is less than U2.
6. the simple saturable reactor of a kind of structure as claimed in claim 1, is characterized in that, described closed loop iron core is one.
7. the simple saturable reactor of a kind of structure as claimed in claim 1, is characterized in that, described closed loop iron core adopts magnet valve structure.
8. the simple saturable reactor of a kind of structure as claimed in claim 1, is characterized in that, described two thyristor two ends piezo-resistance in parallel or bi-directional voltage stabilizing pipe.
9. the simple saturable reactor of a kind of structure as claimed in claim 1, is characterized in that, the antihunt circuit of described two thyristor two ends parallel resistances and capacitances in series.
10. the simple saturable reactor of structure, is characterized in that, it adopts the simple saturable reactor of the arbitrary described phase structure of claim 1-9 to form the simple three-phase saturation electric reactor of structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103299.8A CN104658747B (en) | 2015-03-09 | 2015-03-09 | Saturation resistor with simple structure |
| PCT/CN2015/075802 WO2016141614A1 (en) | 2015-03-09 | 2015-04-02 | Saturable reactor having simple structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103299.8A CN104658747B (en) | 2015-03-09 | 2015-03-09 | Saturation resistor with simple structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104658747A true CN104658747A (en) | 2015-05-27 |
| CN104658747B CN104658747B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510103299.8A Expired - Fee Related CN104658747B (en) | 2015-03-09 | 2015-03-09 | Saturation resistor with simple structure |
Country Status (2)
| Country | Link |
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| CN (1) | CN104658747B (en) |
| WO (1) | WO2016141614A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141614A1 (en) * | 2015-03-09 | 2016-09-15 | 山东大学 | Saturable reactor having simple structure |
| CN109921606A (en) * | 2017-12-12 | 2019-06-21 | 北京天诚同创电气有限公司 | Current equalizing method, the apparatus and system of power module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB735304A (en) * | 1952-05-13 | 1955-08-17 | Raoul Willheim | Improvements in or relating to saturable reactors |
| CN103971882A (en) * | 2014-05-27 | 2014-08-06 | 山东大学 | Alternating-current saturation reactor |
| CN104078199A (en) * | 2014-07-23 | 2014-10-01 | 山东大学 | Device for improving performance of direct-current saturable reactor and method of device |
| CN104201903A (en) * | 2014-09-11 | 2014-12-10 | 山东大学 | Multifunctional transformer |
| CN104376967A (en) * | 2014-11-28 | 2015-02-25 | 山东大学 | Direct-current saturable reactor rapid in reaction |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064759B (en) * | 2011-01-11 | 2012-06-27 | 山东大学 | Self-excited controllable saturation resistor and control method thereof |
| CN104465056B (en) * | 2015-01-04 | 2017-01-25 | 山东大学 | Direct-current saturable reactor with controllable resistors |
| CN104485213B (en) * | 2015-01-04 | 2016-11-09 | 山东大学 | A kind of reduce the direct-curent saturable reactor that IGCT is pressure |
| CN104658747B (en) * | 2015-03-09 | 2017-02-15 | 山东大学 | Saturation resistor with simple structure |
-
2015
- 2015-03-09 CN CN201510103299.8A patent/CN104658747B/en not_active Expired - Fee Related
- 2015-04-02 WO PCT/CN2015/075802 patent/WO2016141614A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB735304A (en) * | 1952-05-13 | 1955-08-17 | Raoul Willheim | Improvements in or relating to saturable reactors |
| CN103971882A (en) * | 2014-05-27 | 2014-08-06 | 山东大学 | Alternating-current saturation reactor |
| CN104078199A (en) * | 2014-07-23 | 2014-10-01 | 山东大学 | Device for improving performance of direct-current saturable reactor and method of device |
| CN104201903A (en) * | 2014-09-11 | 2014-12-10 | 山东大学 | Multifunctional transformer |
| CN104376967A (en) * | 2014-11-28 | 2015-02-25 | 山东大学 | Direct-current saturable reactor rapid in reaction |
Non-Patent Citations (1)
| Title |
|---|
| 刘树林: "《本质安全开关变换器》", 31 May 2008, 科学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141614A1 (en) * | 2015-03-09 | 2016-09-15 | 山东大学 | Saturable reactor having simple structure |
| CN109921606A (en) * | 2017-12-12 | 2019-06-21 | 北京天诚同创电气有限公司 | Current equalizing method, the apparatus and system of power module |
| CN109921606B (en) * | 2017-12-12 | 2020-07-28 | 北京天诚同创电气有限公司 | Current equalizing method, device and system of power module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016141614A1 (en) | 2016-09-15 |
| CN104658747B (en) | 2017-02-15 |
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