CN109755945A - A kind of magnet controlled reactor based on pulse current control - Google Patents
A kind of magnet controlled reactor based on pulse current control Download PDFInfo
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- CN109755945A CN109755945A CN201910260123.1A CN201910260123A CN109755945A CN 109755945 A CN109755945 A CN 109755945A CN 201910260123 A CN201910260123 A CN 201910260123A CN 109755945 A CN109755945 A CN 109755945A
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- controlled reactor
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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
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Abstract
The invention discloses a kind of magnet controlled reactors based on pulse current control, including adjusting control circuit unit and isolating transformer, the adjusting control circuit unit includes magnet controlled reactor ontology, square wave pulse control current generating circuit, inductance element and controlled bridge rectification circuit, the magnet controlled reactor ontology is three pillar type core structure, including an intermediate column iron core and two side column iron cores, the outer surface of intermediate column iron core is wound with main winding, the outer surface of two side column iron cores is wound with the first control winding and the second control winding respectively, the square wave pulse control current generating circuit includes supercapacitor, double-direction control high-speed switch and resistors in series.Magnet controlled reactor of the invention is adjusted by way of the size for changing direct current flux in half of cycle and direction to realize, adjustment speed is fast, controls that required square wave current is smaller, and the continuously smooth that can be realized controllable reactive current is adjusted.
Description
Technical field
The present invention relates to electrical equipment technical field more particularly to a kind of magnet controlled reactors based on pulse current control.
Background technique
Currently, the controlled reactor applied in electric system is many kinds of, from earliest synchronous capacitor, tapped to adjusting
The controlled reactor of head, thyristor-controlled reactor (TCR), the magnetic saturation reactor controlled by magnetic conductivity, magnetic valve type reactance
Device (MCR) is used by using the transformer type controlled reactor (TCT) of thyristor control transformer secondary short circuit duration
The static state reactive generator (SVG) etc. of IGBT bridge control.
In above-mentioned reactor, magnetic saturation reactor and magnetic valve type reactor are traditional DC magnetizing formula magnetic control reactance
Device is passed through the direct current flux control mode of fixed-direction using iron core column, only changes the size of direct current flux when being controlled
Without changing its direction, adjustment speed is slower, and inertia is larger.The present invention will propose a kind of and above-mentioned controlled reactor work
The entirely different magnet controlled reactor of principle, for solving the above problems.
Summary of the invention
The object of the present invention is to provide a kind of magnet controlled reactors based on pulse current control, realize controllable reactive current
Continuously smooth is adjusted, and adjustment speed is fast.
The technical solution adopted by the present invention are as follows: including isolating transformer and adjusting control circuit unit, the isolation transformation
The vice-side winding of device is connect with the input terminal of adjusting control circuit unit, the number and tune of the vice-side winding of the isolating transformer
The number for saving control circuit unit is corresponding；
The adjusting control circuit unit includes magnet controlled reactor ontology, square wave pulse control current generating circuit, inductance element
With controlled bridge rectification circuit, the both ends of the vice-side winding of the isolating transformer two with controlled bridge rectification circuit respectively
One output end of input terminal connection, the controlled bridge rectification circuit is generated by inductance element and square wave pulse control electric current
The another output of circuit connection, the controlled bridge rectification circuit is connect with square wave pulse control current generating circuit, institute
Square wave pulse control current generating circuit is stated to connect with magnet controlled reactor ontology；
The magnet controlled reactor ontology is three pillar type core structure, including an intermediate column iron core and two side column iron cores, institute
The outer surface for the intermediate column iron core stated is wound with main winding, and the main winding parallel connection accesses power grid, side column iron core described in two
Outer surface be wound with the first control winding and the second control winding, the leading-out terminal and second of first control winding respectively
The leading-out terminal of control winding connects；
The square wave pulse control current generating circuit includes supercapacitor, double-direction control high-speed switch and series resistance
One end of device, the double-direction control high-speed switch is connected with one end of supercapacitor, one end of the resistors in series and super
The other end connection of grade capacitor, the other end of the double-direction control high-speed switch connect the end of incoming cables of the first control winding, institute
The other end for stating resistors in series connects the end of incoming cables of the second control winding；
One end of the output end connection inductance element of the controlled bridge rectification circuit, the other end of the inductance element connect
Connect the anode of supercapacitor, another output end of the cathode connection controlled bridge rectification circuit of the supercapacitor.
Preferably, when the magnet controlled reactor ontology is single-phase, isolating transformer is provided with a vice-side winding；
When the magnet controlled reactor ontology is three-phase, there are three vice-side winding, each vice-side winding is homogeneous for isolating transformer setting
Be connected with an adjusting control circuit unit with answering, and connection type with it is single-phase when it is identical；
Preferably, side column core structure described in two is symmetrical, and sectional area is equal, and the sectional area of the intermediate column iron core is
2 times of side column core section product.
Preferably, the induced electricity in order to generate the main winding magnetic flux on magnet controlled reactor ontology in two control windings
Kinetic potential is cancelled out each other, the equal turn numbers of first control winding and the second control winding.
Preferably, electric in order to be classified square wave pulse control caused by adjustment square wave pulse control current generating circuit
The amplitude of stream, the resistors in series be can switching resistance, and can switching resistance be provided with multistage.
Preferably, the supercapacitor is Farad capacitors, capacitance 1-10F.
Preferably, in order to adjust the DC voltage in supercapacitor, realization changes the effect of pulse current amplitude,
The controlled bridge rectification circuit is thyratron transistor bridge rectification circuit.
After the primary side access mains supply of isolating transformer of the invention, rectified by the signal that secondary side exports through controlled bridge
Circuit is powered supercapacitor after being rectified, using the electricity that the supercapacitor for storing huge energy is constant as one
The voltage source of supercapacitor is transformed into current source by resistors in series by potential source, then passes through double-direction control high-speed switch
Export square wave current, and be a kind of high current, which is the control signal that pulse current controls magnet controlled reactor, it is main around
Group access power grid in parallel, made the zero crossing of the square wave current controling signal synchronous with the primary current holding that main winding generates
Zero, it can quickly change iron core magnetic conductivity of the magnet controlled reactor in half period, and then change magnetic saturation and direct current flux
Size and direction realize that the primary current of magnet controlled reactor is adjusted, the inductance current of magnet controlled reactor winding is flowed through in control,
Adjustment speed is fast, and the continuously smooth that can be realized controllable reactive current is adjusted.
Detailed description of the invention
Fig. 1 is circuit diagram of the invention；
Fig. 2 is the circuit diagram of square wave pulse control current generating circuit of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention includes adjusting control circuit unit 1 and isolating transformer 2, the isolating transformer 2
Vice-side winding is connect with two input terminals of adjusting control circuit unit 1, the number of the vice-side winding of the isolating transformer 2 with
The number of adjusting control circuit unit 1 is corresponding, and the primary side of the isolating transformer 2 accesses mains supply.
The adjusting control circuit unit 1 include magnet controlled reactor ontology 11, square wave pulse control current generating circuit 12,
The both ends of inductance component L and controlled bridge rectification circuit 13, the vice-side winding of the isolating transformer 2 are whole with controlled bridge respectively
Two input terminals of current circuit 13 connect, and an output end of the controlled bridge rectification circuit 13 passes through inductance component L and side
Wave impulse controls current generating circuit 12 and connects, the another output and square-wave pulse control of the controlled bridge rectification circuit 13
Current generating circuit 12 processed connects, and the square wave pulse control current generating circuit 12 and magnet controlled reactor ontology 11 connect.
The magnet controlled reactor ontology 11 is three pillar type core structure, including an intermediate column iron core 111 and two sides
Column iron core 112, the outer surface of the intermediate column iron core 111 are wound with main winding 113, the main winding 113 access electricity in parallel
Net, the outer surface of two side column iron cores 112 are wound with the first control winding 114 and the second control winding 115 respectively, and described
The leading-out terminal of one control winding 114 and the connection of the leading-out terminal of the second control winding 115, the connection of the leading-out terminal of two control windings
For opposite polarities in series, it is therefore an objective to the induced electromotive force for guaranteeing that 113 magnetic flux of main winding generates in two control windings can be offset,
It is in pure resistance characteristic after series connection, convenient for passing through square wave pulsed current.
As shown in Fig. 2, the square wave pulse control current generating circuit 12 is fast including supercapacitor C, double-direction control
Fast switch 121 and resistors in series 122, one end of the double-direction control high-speed switch 121 and one end of supercapacitor C connect
It connects, one end of the resistors in series 122 is connected with the other end of supercapacitor C, the double-direction control high-speed switch 121
The other end connects the end of incoming cables of the first control winding 114, and the other end of the resistors in series 122 is electrically connected the second control winding
115 end of incoming cables, resistors in series 122 using multistage can switching resistance 123 be composed in series, can be classified adjustment its generate side
Wave impulse controls the amplitude of electric current, when current amplitude is larger, make can on switching resistance 123 switch K1And (or) K2It disconnects, thus
Make resistance R1And (or) R2Play the role of current limliting classification, when current amplitude is larger, making can switch K on switching resistance 1231With
(or) K2Closure, can switching resistance 123 be provided with it is multiple, when specifically used according to the size of square wave pulse control current amplitude come
It is adjusted, the smooth adjustment of pulse control current amplitude is realized by the voltage-regulating circuit of supercapacitor C, two-way
Control high-speed switch (IGBT) element trigger pulse be it is such, when the primary current for detecting corresponding phase in magnet controlled reactor
When positive going zeror crossing, it is first turned off trigger signal, while opening trigger signal, conversely, being first turned off when primary current negative sense zero passage
The trigger signal of IGBT simultaneously turns on the trigger signal of IGBT.
One end of the output end connection inductance component L of the controlled bridge rectification circuit 13, the inductance component L
The other end connects the anode of supercapacitor C, and the cathode of the supercapacitor C connects the another of controlled bridge rectification circuit 13
Output end, inductance component L are for the charging current of smooth supercapacitor C, using mains supply as isolating transformer 2
The power supply of primary side, supercapacitor C realized by single-phase or three-phase AC power source through controlled bridge rectification circuit, controlled bridge
Rectification circuit 13 is single-phase controlled bridge rectification circuit or three-phase controlled bridge rectification circuit, controlled bridge rectification circuit accordingly
13 be thyratron transistor bridge rectification circuit, and the direct current adjusted on supercapacitor C can be realized in the Trigger Angle for changing thyristor 131
The effect of pressure, and then change the amplitude of pulse control electric current.
When the magnet controlled reactor ontology 11 is single-phase, isolating transformer 2 is provided with a vice-side winding, the magnetic control electricity
When anti-device ontology 11 is three-phase, for the setting of isolating transformer 2 there are three vice-side winding, each vice-side winding is correspondingly connected with one
A adjusting control circuit unit 1, and connection type with it is single-phase when it is identical, i.e., for the magnet controlled reactor ontology 11 of three-phase, by
Three such single phase control circuits trigger the control winding on the magnet controlled reactor ontology 11 of corresponding phase respectively, and for three-phase
Magnet controlled reactor ontology 11, connect using three single-phase magnet controlled reactor ontology Y or △ connect, two kinds of connection types are
General knowledge known in this field, details are not described herein.
112 symmetrical configuration of side column iron core described in two, and sectional area is equal, the section of the intermediate column iron core 111
Product is 2 times of 112 sectional area of side column iron core, can realize the structure of the first control winding 114 and the second control winding 115
Symmetrically.
The equal turn numbers of first control winding 114 and the second control winding 115, in order to make magnet controlled reactor ontology
On the induced electromotive force that is generated in two control windings of 113 magnetic flux of main winding cancel out each other, convenient for electric by square-wave pulse
Stream.
The resistors in series 122 by can switching resistance 123 form, and can switching resistance 123 be provided with multistage, can throw
Cutting the switch used of resistance 123 can be used conventional mechanical switch, power electronic devices such as thyristor or IGBT can also be used to constitute,
Using can switching resistance 123 be in order to be classified adjustment square wave pulse control current generating circuit 12 caused by square wave pulse control
The amplitude of electric current.
The supercapacitor C is Farad capacitors, and capacitance 1-10F, specific capacitance is according to magnetic control reactance
The power of device determines, using Farad capacitors firstly because its capacitance is very big, it is strong that high current puts an ability, meets this hair
Bright requirement, secondly Farad capacitors also have the advantages that long service life and environment friendly and pollution-free.
The controlled bridge rectification circuit 13 is thyratron transistor bridge rectification circuit, can change the feeler of thyristor 131
It realizes the effect of the DC voltage on adjustment supercapacitor C, and then changes the amplitude of pulse control electric current.
To sum up, the access power supply grid directly in parallel of the main winding 113 on magnet controlled reactor ontology 11, the first control winding
114 and second control winding 115 leading-out terminal opposite polarities in series, guarantee main winding 113 magnetic flux produced in two control windings
Raw induced electromotive force can be offset, after series connection be in pure resistance characteristic, the end of incoming cables of the first control winding 114 and second control around
Both ends of the end of incoming cables of group 115 respectively with square wave pulse control current generating circuit 12 are connected, and make the first control winding 114
For the input terminal of magnet controlled reactor ontology, output end of second control winding 115 as magnet controlled reactor ontology, square-wave pulse control
What current generating circuit 12 processed exported is square wave current, and is high current, and square wave pulse control current generating circuit 12 is allowed to produce
The primary current passed through in raw square wave control electric current and main winding 113 is simultaneously in the positive and negative half cycle zero passage of electric current, it is ensured that primary
Forward dc magnetic flux is added in positive half cycle for electric current in iron core, reduce magnetic conductivity, increases the amplitude of positive half cycle primary current, one
Reversed direct current flux is added when the negative half period of primary current, changes magnetic conductivity, the amplitude of primary current, passes through tune when increasing negative half period
The amplitude of whole square wave pulse control electric current and then the effect that may be implemented to change primary current size in a cycle, square-wave pulse
The generation of control electric current realizes that it will store the supercapacitor C of huge electric field energy using double-direction control high-speed switch 121
Voltage source is changed into square wave current source by the effect of resistors in series 122 by the voltage source nearly constant as one, super
The power supply of capacitor C is realized by isolating transformer 2 and controlled bridge rectification circuit 13, while can pass through control controlled bridge
The Trigger Angle of thyristor 131 on rectification circuit 13 realizes the quick adjustment of supercapacitor C both end voltage, flows through magnetic control electricity
The inductance current of anti-device winding also can be adjusted quickly therewith, and the continuously smooth that can be realized controllable reactive current is adjusted.
Claims (7)
1. a kind of magnet controlled reactor based on pulse current control, it is characterised in that: including adjusting control circuit unit and isolation
The vice-side winding of transformer, the isolating transformer is connect with the input terminal of adjusting control circuit unit, the isolating transformer
Vice-side winding number it is corresponding with the number of adjusting control circuit unit；
The adjusting control circuit unit includes magnet controlled reactor ontology, square wave pulse control current generating circuit, inductance element
With controlled bridge rectification circuit, the both ends of the vice-side winding of the isolating transformer two with controlled bridge rectification circuit respectively
One output end of input terminal connection, the controlled bridge rectification circuit is generated by inductance element and square wave pulse control electric current
The another output of circuit connection, the controlled bridge rectification circuit is connect with square wave pulse control current generating circuit, institute
Square wave pulse control current generating circuit is stated to connect with magnet controlled reactor ontology；
The magnet controlled reactor ontology is three pillar type core structure, including an intermediate column iron core and two side column iron cores, institute
The outer surface for the intermediate column iron core stated is wound with main winding, and the main winding parallel connection accesses power grid, side column iron core described in two
Outer surface be wound with the first control winding and the second control winding, the leading-out terminal and second of first control winding respectively
The leading-out terminal of control winding connects；
The square wave pulse control current generating circuit includes supercapacitor, double-direction control high-speed switch and series resistance
One end of device, the double-direction control high-speed switch is connected with one end of supercapacitor, one end of the resistors in series and super
The other end connection of grade capacitor, the other end of the double-direction control high-speed switch connect the end of incoming cables of the first control winding, institute
The other end for stating resistors in series connects the end of incoming cables of the second control winding；
One end of the output end connection inductance element of the controlled bridge rectification circuit, the other end of the inductance element connect
Connect the anode of supercapacitor, another output end of the cathode connection controlled bridge rectification circuit of the supercapacitor.
2. the magnet controlled reactor according to claim 1 based on pulse current control, it is characterised in that: the magnetic control reactance
Device ontology is three-phase magnetron reactor, and there are three vice-side winding, each vice-side winding is correspondingly connected for isolating transformer setting
Have an adjusting control circuit unit, and connection type with it is single-phase when it is identical.
3. the magnet controlled reactor according to claim 1 based on pulse current control, it is characterised in that: side described in two
Column iron core symmetrical configuration, and sectional area is equal, the sectional area of the intermediate column iron core is 2 times of side column core section product.
4. the magnet controlled reactor according to claim 1 based on pulse current control, it is characterised in that: first control
The equal turn numbers of winding processed and the second control winding.
5. the magnet controlled reactor according to claim 1 based on pulse current control, it is characterised in that: the series electrical
Hinder device be can switching resistance, it is described can switching resistance be provided with multistage.
6. the magnet controlled reactor according to claim 1 based on pulse current control, it is characterised in that: the super electricity
Container is Farad capacitors, capacitance 1-10F.
7. the magnet controlled reactor according to claim 1 based on pulse current control, it is characterised in that: the controllable bridge
Formula rectification circuit is thyratron transistor bridge rectification circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910260123.1A CN109755945B (en) | 2019-04-02 | 2019-04-02 | Magnetically controlled reactor based on pulse current control |
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| CN201910260123.1A CN109755945B (en) | 2019-04-02 | 2019-04-02 | Magnetically controlled reactor based on pulse current control |
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| CN109755945B CN109755945B (en) | 2022-07-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115480610A (en) * | 2022-11-04 | 2022-12-16 | 国仪量子(合肥)技术有限公司 | Pulse signal conditioning circuit and electronic equipment |
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