CN101882499A - Magnetic valve type controllable reactor - Google Patents
Magnetic valve type controllable reactor Download PDFInfo
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- CN101882499A CN101882499A CN2010102112037A CN201010211203A CN101882499A CN 101882499 A CN101882499 A CN 101882499A CN 2010102112037 A CN2010102112037 A CN 2010102112037A CN 201010211203 A CN201010211203 A CN 201010211203A CN 101882499 A CN101882499 A CN 101882499A
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Abstract
The invention relates to a magnetic valve type controllable reactor which comprises a main iron core, wherein the main iron core comprises two half iron cores; the invention is characterized in that a valve port is arranged at the middle part of each half iron core, the half iron core is divided into an upper segment and a lower segment, a first winding (1), a second winding (2), a third winding (3) and a fourth winding (4) are respectively sleeved on each segment, and the upper end parts of the first winding (1) and the third winding (3) positioned at the upper part are connected in parallel; a first silicon controlled thyristor (5) is connected between a first tap (10) and a second tap (20); a second silicon controlled thyristor (6) is connected between a third tap (30) and a fourth tap (40); and a diode (7) is connected between a first winding end (11) and a second winding end (21). Under different periods, the silicon controlled thyristors are respectively conducted by a power supply to form pulsating direct current, and when the conduction angles of the silicon thyristor are changed, the magnitude of exciting current is changed, thereby changing the saturation degree of the valve port and smoothly regulating the capacity of the reactor.
Description
Technical field
The present invention relates to the power technology field, especially a kind of magnetic valve type controllable reactor.
Background technology
Magnetic valve type controllable reactor is that an iron core has valve port, is made up of direct current winding and AC Windings.Utilize dc magnetizing to control valve port degree of saturation unshakable in one's determination, thereby control, change AC Windings inductance (reactance) value, be called magnetic valve type controllable reactor.
Reason that ferrimagnetism promptly had been greatly people institute in the past about 100 years and using.About 1916, " magnetic amplifier " professional term based on the saturable reactor principle appears in the foreign literature, but up to non-linear ferromagnetic theoretical developments with occur behind the performance magnetic material, the technology of saturable reactor and use bigger progress is just arranged.The development of the performance improvement of saturable reactor and new material, new element, new technology has confidential relation.Units such as saturable reactor and transistor, servomotor, alternating electromagnet connect each other and interact, and also are the problems that people pay close attention to.Because the needs of producing, the theory of saturable reactor has comparatively extensive, deep research in the 1950's, forms the complete Ideal Magnetic Amplifier theory of a cover.
The advantage of saturable reactor is: but stable, reliable continuously smooth is regulated power, control is flexible, cost is lower, the life-span is long, maintenance management is easy etc.Therefore, in recent years, high-power saturable reactor is used widely in industry, as high enthalpy arc power (hot air wind tunnel power supply); Utilize the constant-current characteristics of saturable reactor can be configured for holding the ideal plasma power supply of Physical Experiment, the high-power automatic voltage regulator of radar, communication, computer system, chemistry, big electric current automatic steady current mechanism etc. in the electrolytic industry.
In electric power system, saturable reactor can be used as reactive power compensation device, and restriction switching overvoltage, the zero load that reduces circuit and underloading loss improve transmission of electricity energy, stability and the electric network reliability of electric power system.Ultra-large net capacity is increasing, causes the failed shorted electric current also sharply to increase, and short-circuit current controller (being called for short SCFL) need be set in system.SCFL has many advantages, is subjected to the attention of International Power industrial quarters, especially uses the superconduction saturable reactor DC control winding of saturable reactor is made the high-temperature superconductor winding, and limiting short-circuit current is called superconduct short trouble current-limiting apparatus (being called for short SFCL).
In recent years, each advanced country has carried out the R﹠D work in early stage to the SFCL that uses saturable reactor, and superconduction saturable reactor technology is in the starting stage in application on power system.
Present Passive Reactive Power Compensation device can be divided into two classes substantially:
(1) idle static compensating device: comprising for improving capacitor group that the user power factor uses and for the superfluous idle shunt reactor that adopts with reduction power-frequency overvoltage amplitude that absorbs high more transmission line charging and light hours etc.Dynamic reactive compensation device: but not only relevant comprising the reactive-load compensation equipment moulding of idle synchronous compensator of exerting oneself of flexible (compensator) and closely Static Type Dynamic Reactive Compensation Device (SVC) electric power system of more than ten years appearance with concrete compensation requirement, and substantial connection is arranged with power generation configuration, network configuration and electrical equipment manufacture level, in the different phase of power network development different selections is arranged.
In power network development initial stage or long distance powedr transmission, use compensator more, because compensator has overload capacity fast when system voltage descends, and the capacitor of switch on-off, reactor group not only do not have overload capacity, and its capacity is declined to become quadratic relationship with voltage on the contrary to be reduced.Although compensator has above-mentioned advantage, because of other shortcoming is arranged, the total trend of some developed countries is develop actively compensator no longer.In reactive-load compensation equipment constituted, the proportion of switch on-off capacitor, reactor group had comparative advantage.With Japan is example, and from just new clothes compensator no longer of nineteen fifty-nine, reactive-load compensation equipment mainly is a capacitor.It is 7.5% that compensator capacity in 1967 accounts for the ratio of reactive-load compensation equipment capacity, and the ratio of compensator drops to 1.1% to nineteen eighty-two.Compensator is replaced by the capacitor of switch on-off, reactor group gradually.In Japan, static dynamic reactive compensation device is mainly used in impact load.France is not newly-increased later on compensator from 1961, and reactive power compensation mainly is a capacitor.To the beginning of the eighties, the ratio that compensator accounts for reactive compensation capacity is 8.1%.
In China, before the eighties put into operation in succession in many hydroelectric stations away from load center.The 220KV net is in developing stage.Be to improve the transmittability in hydroelectric station, support to be subjected to terminal voltage, in the centre or receiving end transformer station select compensator mostly for use, perhaps transform the receiving end turbo generator set into phase modulation operation in the wet season.In reactive-load compensation equipment constituted, the proportion of compensator capacity in 1979 was 22%, and capacitor is 78%; Drop to 10% to compensator proportion in 1988, capacitor rises to 88.5%, and the proportion of static dynamic compensator is less than 2%.
In sum, when compensator was progressively eliminated, the Static Type Dynamic Reactive Compensation Device of the superiority that possesses skills (SVC) was not widely used.One of the main reasons is exactly that it costs an arm and a leg.Therefore for China and even the external following electric power system, the selection issue of reactive-load compensation equipment mainly is a techno-economic question.
All do not obtain enough attention (removing Russia) and apply international, domestic by the magnetic saturation type controlled reactor (abbreviation controlled reactor) of DC control.Its manufacturing process is simple, with low cost, studies show that for the ability to transmit electricity that improves electrical network, regulates line voltage, compensating power and restriction switching overvoltage, and such controlled reactor all has beyond challenge application potential.
Summary of the invention
The object of the present invention is to provide a kind of magnetic valve type controllable reactor, this magnetic valve type controllable reactor is high-power controllable transducer current-limiting soft-starting device, can be applicable to multiple occasions such as low pressure and high voltage motor.
Technical scheme of the present invention is:
Of the present invention
A kind of magnetic valve type controllable reactor, comprise main iron core, main iron core is made up of two and half iron cores, described each half iron core middle part is provided with a valve port, half iron core is divided into upper and lower two sections, go up sheathed first winding, second winding, the tertiary winding and the 4th winding respectively for every section, the upper end of superposed first winding and the tertiary winding also connects; Be positioned at the bottom of second winding of bottom and the 4th winding and connect; First winding terminal of the first winding lower end is connected with the 4th winding terminal of the 4th winding upper end; The tertiary winding end of tertiary winding lower end is connected with second winding terminal of second winding upper end; Be respectively equipped with first tap, second tap, the 3rd tap and the 4th tap on first winding, second winding, the tertiary winding and the 4th winding, be connected with first controllable silicon between first tap and second tap; Be connected with second controllable silicon between the 3rd tap and the 4th tap; Be connected with diode between first winding terminal and second winding terminal.
Described two and half iron cores are for being symmetrical arranged.
Described first winding is identical with the number of turn of second winding.
The described tertiary winding is identical with the number of turn of the 4th winding.
The number of turn between described first winding terminal and first tap accounts for 10% to 30% of first umber of turn.Be preferably 20%.
The number of turn between described second winding terminal and second tap accounts for 10% to 30% of first umber of turn.Be preferably 20%.
The number of turn between described tertiary winding end and the 3rd tap accounts for 10% to 30% of first umber of turn.Be preferably 20%.
The number of turn between described the 4th winding terminal and the 4th tap accounts for 10% to 30% of first umber of turn.Be preferably 20%.Described first controllable silicon is opposite with the second controllable silicon polarity.
The invention has the beneficial effects as follows:
Magnetic valve type controllable reactor of the present invention is directly incorporated supergrid into owing to can make any electric pressure, therefore has significant technology, economy.
Magnetic valve type controllable reactor of the present invention be except limiting the power-frequency overvoltage, can also limit the switching overvoltage that produces because of the line switching operation significantly, thereby is expected to replace existing pressure limiting device (as the combined floodgate parallel resistance etc.Magnetic valve type controllable reactor can be in order to keep busbar voltage.Because when it has Fast Dynamic responding ability (the adjusting time is less than 0.3S) to be subjected to certain big interference (accident that is short-circuited, cutter, draw back circuit, drop into heavy-haul line etc.) in system, automatically keep even the raising end-point voltage, this just helps the stable operation of system greatly.Magnetic valve type controllable reactor is owing to the quick compensating reactive power of energy, burning voltage, so it is the effective equipment that suppresses the system power vibration.
The adjusting time of magnetic valve type controllable reactor can shorten response speed greatly.Thereby for controlled reactor is laid a good foundation in the application aspect the inhibition voltage flicker.Magnetic valve type controllable reactor cooperates the capacitor group can improve the power factor of electricity consumption enterprise greatly, can avoid penalizing thereby the user pays the electricity charge, even transfer to and being rewarded.Magnetic valve type controllable reactor can be used to eliminate the influence that the unbalanced operation of load brings to electrical network, thereby make the supply power voltage equilibrating at uncompensated load place, the adjustable arc suppression coil of using the making of magnetic valve type controllable reactor principle has series of advantages such as reliability height, response speed is fast, harmonic wave is little, can quick and precisely compensate single-phase-to-ground current and improve power supply reliability
Single-phase magnetic valve type controllable reactor inserts in the zero sequence loop of rectified three-phase circuit, regulates automatically according to load variations, can make the system power factor near 1.0, and higher harmonic components reduces greatly.Magnetic valve type controllable reactor can directly be connected on supertension line side (switch is interior), brings into play the effect of synchronous compensator and shunt reactor simultaneously.
Description of drawings
Fig. 1 is an electrical schematic diagram of the present invention.
Fig. 2 is a structural representation of the present invention.
Among the figure: 1, first winding, 10, first tap, 11, first winding terminal, 2, second winding, 20, second tap, 21, second winding terminal, 3, the tertiary winding, the 30, the 3rd tap, 31, tertiary winding end, 4, the 4th winding, the 40, the 4th tap, the 41, the 4th winding terminal, 5, first controllable silicon, 6, second controllable silicon, 7, diode, 8, coil, 9, iron core, 10, folder.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described:
As Fig. 1, a kind of magnetic valve type controllable reactor, comprise main iron core, main iron core is made up of two and half iron cores, each half iron core middle part is provided with a valve port, half iron core is divided into upper and lower two sections, goes up sheathed first winding 1, second winding 2, the tertiary winding 3 and the 4th winding 4 respectively for every section, the upper end of superposed first winding 1 and the tertiary winding 3 also connects; Be positioned at the bottom of second winding 2 of bottom and the 4th winding 4 and connect; First winding terminal 11 of first winding, 1 lower end is connected with the 4th winding terminal 41 of the 4th winding 4 upper ends; The tertiary winding end 31 of the tertiary winding 3 lower ends is connected with second winding terminal 21 of second winding, 2 upper ends; Be respectively equipped with first tap 10, second tap 20, the 3rd tap 30 and the 4th tap 40, the first taps 10 and 20 of second taps on first winding 1, second winding 2, the tertiary winding 3 and the 4th winding 4 and be connected with first controllable silicon 5; The 3rd tap 30 and 40 of the 4th taps are connected with second controllable silicon 6; First winding terminal 11 and 21 of second winding terminals are connected with diode 7.First controllable silicon 5 is opposite with second controllable silicon, 6 polarity.
Two and half iron cores are for being symmetrical arranged.
First winding 1 is identical with the number of turn of second winding 2.
The tertiary winding 3 is identical with the number of turn of the 4th winding 4.
The number of turn that first winding terminal 11 and first tap are 10 accounts for 20% of first winding, 1 number of turn.
The number of turn that second winding terminal 21 and second tap are 20 accounts for 20% of first winding, 1 number of turn.
The number of turn that tertiary winding end 31 and the 3rd tap are 30 accounts for 20% of first winding, 1 number of turn.
The number of turn that the 4th winding terminal 41 and the 4th tap are 40 accounts for 20% of first winding, 1 number of turn.
As Fig. 2, coil 8 rich being located on the iron core 9, iron core 9 is fixing by folder 10, has six groups of iron cores, constitutes the controlled controlled reactor of magnetic valve type of three-phase jointly.
The controlled controlled reactor principle of this magnetic valve type is:
The main iron core of magnetic valve type controllable reactor is split into two and half iron cores, and different is that each half iron core all has a valve port.Be wound with two numbers of turn on two and half iron core column respectively symmetrically and be 1/2 winding, the coil total number of turns of half iron core column is a total number of turns; Two windings up and down of each half iron core column respectively have a tap, connect controllable silicon between the tap; After two winding interconnections up and down of different iron cores, being connected in parallel to electrical network is the source, and diode is across intersecting end points.
During not conducting of controllable silicon, know that by the symmetry of winding construction controlled reactor and unloaded transformer are as good as.When power supply under the different cycles, respectively the conducting controllable silicon forms pulsating direct current, when changing thyristor operating angle, then changes the size of exciting curent, thereby has changed the saturation of valve port, the capacity of adjusting reactor that can be level and smooth.
Claims (9)
1. magnetic valve type controllable reactor, comprise main iron core, main iron core is made up of two and half iron cores, it is characterized in that described each half iron core middle part is provided with a valve port, half iron core is divided into upper and lower two sections, go up sheathed first winding (1), second winding (2), the tertiary winding (3) and the 4th winding (4) respectively for every section, the upper end of superposed first winding (1) and the tertiary winding (3) also connects; Be positioned at the bottom of second winding (2) of bottom and the 4th winding (4) and connect; First winding terminal (11) of first winding (1) lower end is connected with the 4th winding terminal (41) of the 4th winding (4) upper end; The tertiary winding end (31) of the tertiary winding (3) lower end is connected with second winding terminal (21) of second winding (2) upper end; Be respectively equipped with first tap (10), second tap (20), the 3rd tap (30) and the 4th tap (40) on first winding (1), second winding (2), the tertiary winding (3) and the 4th winding (4), be connected with first controllable silicon (5) between first tap (10) and second tap (20); Be connected with second controllable silicon (6) between the 3rd tap (30) and the 4th tap (40); Be connected with diode (7) between first winding terminal (11) and second winding terminal (21).
2. magnetic valve type controllable reactor according to claim 1 is characterized in that described two and half iron cores are for being symmetrical arranged.
3. magnetic valve type controllable reactor according to claim 1 is characterized in that described first winding (1) is identical with the number of turn of second winding (2).
4. magnetic valve type controllable reactor according to claim 1 is characterized in that the described tertiary winding (3) is identical with the number of turn of the 4th winding (4).
5. magnetic valve type controllable reactor according to claim 1 is characterized in that the number of turn between described first winding terminal (11) and first tap (10) accounts for 10% to 30% of first winding (1) number of turn.
6. magnetic valve type controllable reactor according to claim 1 is characterized in that the number of turn between described second winding terminal (21) and second tap (20) accounts for 10% to 30% of first winding (1) number of turn.
7. magnetic valve type controllable reactor according to claim 1 is characterized in that the number of turn between described tertiary winding end (31) and the 3rd tap (30) accounts for 10% to 30% of first winding (1) number of turn.
8. magnetic valve type controllable reactor according to claim 1 is characterized in that the number of turn between described the 4th winding terminal (41) and the 4th tap (40) accounts for 10% to 30% of first winding (1) number of turn.
9. magnetic valve type controllable reactor according to claim 1 is characterized in that described first controllable silicon (5) is opposite with second controllable silicon (6) polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102112037A CN101882499A (en) | 2010-06-25 | 2010-06-25 | Magnetic valve type controllable reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102112037A CN101882499A (en) | 2010-06-25 | 2010-06-25 | Magnetic valve type controllable reactor |
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| CN101882499A true CN101882499A (en) | 2010-11-10 |
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| CN2010102112037A Pending CN101882499A (en) | 2010-06-25 | 2010-06-25 | Magnetic valve type controllable reactor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982985A (en) * | 2012-12-11 | 2013-03-20 | 浙江大学 | Multi-tap composite excitation type controllable reactor |
| CN103280293A (en) * | 2013-06-19 | 2013-09-04 | 高海生 | Core valve type reactor |
| CN103326630A (en) * | 2013-07-17 | 2013-09-25 | 高海生 | Electric reactor type soft starter for iron core valve |
| CN104347241A (en) * | 2013-07-26 | 2015-02-11 | 青岛菲特电器科技有限公司 | Multi-magnetic-valve type controllable electric reactor |
| CN109617089A (en) * | 2018-12-12 | 2019-04-12 | 西安交通大学 | A kind of reactive power compensator inhibiting function with inrush phenomenon |
| CN112563002A (en) * | 2020-12-02 | 2021-03-26 | 武汉海奥电气有限公司 | Split-core type magnetic control intelligent transformer and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263411Y (en) * | 1995-09-19 | 1997-09-24 | 武汉水利电力大学 | Magnetic valve type controlled reactor |
| CN101661832A (en) * | 2009-09-10 | 2010-03-03 | 刘有斌 | Controllable reactor with air gap |
| CN201796712U (en) * | 2010-06-25 | 2011-04-13 | 宜兴市万盛变压器有限公司 | Magnetic valve type controllable reactor |
-
2010
- 2010-06-25 CN CN2010102112037A patent/CN101882499A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263411Y (en) * | 1995-09-19 | 1997-09-24 | 武汉水利电力大学 | Magnetic valve type controlled reactor |
| CN101661832A (en) * | 2009-09-10 | 2010-03-03 | 刘有斌 | Controllable reactor with air gap |
| CN201796712U (en) * | 2010-06-25 | 2011-04-13 | 宜兴市万盛变压器有限公司 | Magnetic valve type controllable reactor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982985A (en) * | 2012-12-11 | 2013-03-20 | 浙江大学 | Multi-tap composite excitation type controllable reactor |
| CN102982985B (en) * | 2012-12-11 | 2015-06-03 | 浙江大学 | Multi-tap composite excitation type controllable reactor |
| CN103280293A (en) * | 2013-06-19 | 2013-09-04 | 高海生 | Core valve type reactor |
| CN103280293B (en) * | 2013-06-19 | 2015-08-19 | 高海生 | A kind of core valve type reactor |
| CN103326630A (en) * | 2013-07-17 | 2013-09-25 | 高海生 | Electric reactor type soft starter for iron core valve |
| CN103326630B (en) * | 2013-07-17 | 2015-10-21 | 高海生 | A kind of electric reactor type soft starter for iron core valve device |
| CN104347241A (en) * | 2013-07-26 | 2015-02-11 | 青岛菲特电器科技有限公司 | Multi-magnetic-valve type controllable electric reactor |
| CN109617089A (en) * | 2018-12-12 | 2019-04-12 | 西安交通大学 | A kind of reactive power compensator inhibiting function with inrush phenomenon |
| CN112563002A (en) * | 2020-12-02 | 2021-03-26 | 武汉海奥电气有限公司 | Split-core type magnetic control intelligent transformer and control method |
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Application publication date: 20101110 |