CN106208078A - A kind of active power regulator control system controlled based on Multi-coil transformer and power - Google Patents
A kind of active power regulator control system controlled based on Multi-coil transformer and power Download PDFInfo
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- CN106208078A CN106208078A CN201610808251.1A CN201610808251A CN106208078A CN 106208078 A CN106208078 A CN 106208078A CN 201610808251 A CN201610808251 A CN 201610808251A CN 106208078 A CN106208078 A CN 106208078A
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- switch
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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- Control Of Electrical Variables (AREA)
Abstract
The invention discloses a kind of active power regulator control system controlled based on Multi-coil transformer and power, including transformator and multiple power regulation group, each power regulation group includes a controllable AC unit and two uncontrollable alternating current unit；Controllable AC unit includes rectification module, D.C. resistance, inversion module and branch's three-winding transformer；Two windings of branch's three-winding transformer ac bus with two lines trackside respectively is connected.The control methods variation of active power in the present invention；It can be avoided that affect the normal work of follow-up transmission line of electricity during plant failure, reliability is high；And using branch's three-winding transformer so that a controllable AC unit can control the active power on two lines road simultaneously, saves the quantity of controllable AC unit, has saved cost.
Description
Technical field
The present invention relates to distribution and control technical field, particularly relate to a kind of controlled based on Multi-coil transformer and power
Active power regulator control system.
Background technology
In the high pressure such as tradition 110kV, 220kV, 500kV and ultrahigh-voltage alternating-current transmission system, transmission line of electricity output
The general one used in the following two kinds mode of regulation and control:
The first controls the break-make of transmission line of electricity by mechanical AC circuit breaker, and the output of transmission line of electricity is pressed
Natural trend is distributed, and is determined by line impedance, load parameter.Which is difficult to enter the output of transmission line of electricity
Row controls in real time.Another kind of employing alternating current-direct current mixing technology of transmission of electricity, first passes through fairing and alternating current is become unidirectional current, pass through
After the transmission of electricity of hundreds of kilometer or more long transmission line, then by inverter, unidirectional current is become alternating current.
Existing transmission system uses any of the above mode to carry out active power regulation and control, and mode is single, and once device goes out
Existing fault, i.e. can affect the normal work of follow-up circuit, and reliability is low.
Therefore, how to provide that a kind of mode is various, reliability is high based on controlled meritorious of Multi-coil transformer and power
Power conditioning system is the problem that those skilled in the art are presently required solution.
Summary of the invention
It is an object of the invention to provide a kind of active power regulator control system controlled based on Multi-coil transformer and power, have
The control methods variation of merit power；It can be avoided that affect the normal work of follow-up transmission line of electricity during plant failure, reliability is high；
And using branch's three-winding transformer so that a controllable AC unit can control the active power on two lines road simultaneously, joint
Save the quantity of controllable AC unit, save cost.
For solving above-mentioned technical problem, the invention provides a kind of wattful power controlled based on Multi-coil transformer and power
Rate regulator control system, including transformator and multiple power regulation group, each described power regulation group includes a controllable AC list
Unit and two uncontrollable alternating current unit；
The input of described transformator connects high voltage AC bus, and it is female that the outfan of described transformator connects low-voltage alternating-current
Line；
Described controllable AC unit includes rectification module, D.C. resistance, inversion module and branch's three-winding transformer；Institute
The input stating rectification module connects described high voltage AC bus；Described D.C. resistance is serially connected with the outfan of described rectification module
And between the input of described inversion module；The outfan of described inversion module connects of described branch three-winding transformer
Winding terminal, two windings of the residue of described branch three-winding transformer ac bus with two lines trackside respectively is connected；Described
The common port of rectification module is connected with the common port of described inversion module；
It is female that first uncontrollable alternating current unit includes that the first switch, described first switch ends connect described low-voltage alternating-current respectively
Line and the ac bus in Article 1 line side；
It is female that second uncontrollable alternating current unit includes that second switch, described second switch two ends connect described low-voltage alternating-current respectively
Line and the ac bus in Article 2 line side.
Preferably, described rectification module is specially full-bridge rectifier.
Preferably, described rectification module is specially silicon controlled rectifier.
Preferably, described inversion module is specially full-bridge inverter.
Preferably, described inversion module is specially sinewave inverter.
Preferably, described first switch and described second switch are knife switch.
Preferably, described first switch and described second switch are AC circuit breaker.
The invention provides a kind of active power regulator control system controlled based on Multi-coil transformer and power, including multiple
Power regulation group, each power regulation group includes that a controllable AC unit parallel with one another and two uncontrollable exchanges are single
Unit.Controllable AC unit includes rectification module, D.C. resistance, inversion module and branch's three-winding transformer, it is possible to the most right
The output on two lines road controls in real time.Uncontrollable alternating current unit includes a switch, when the switch is closed, with its phase
According to line impedance and load parameter, circuit even determines that output, i.e. output are distributed, when opening by natural trend
When closing disconnection, coupled circuit is transmitted electricity by controllable AC unit.Visible, the present invention can select as required
The control methods of active power, mode variation；Meanwhile, controllable AC unit and uncontrollable alternating current unit are the most standby, when
Device in one unit of any of which breaks down, system all can use another way to regulate and control, it is to avoid device
Affecting the normal work of follow-up circuit during fault, reliability is high.Further, by using branch's three-winding transformer so that one
Controllable AC unit can control the active power on two lines road simultaneously, saves the quantity of controllable AC unit, has saved one-tenth
This.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to institute in prior art and embodiment
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only some enforcements of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtains according to these accompanying drawings
Obtain other accompanying drawing.
The knot of a kind of controlled based on Multi-coil transformer and the power active power regulator control system that Fig. 1 provides for the present invention
Structure schematic diagram；
In a kind of controlled based on Multi-coil transformer and the power active power regulator control system that Fig. 2 provides for the present invention
The equivalent schematic of controllable AC unit.
Detailed description of the invention
The core of the present invention is to provide a kind of active power regulator control system controlled based on Multi-coil transformer and power, has
The control methods variation of merit power；It can be avoided that affect the normal work of follow-up transmission line of electricity during plant failure, reliability is high；
And using branch's three-winding transformer so that a controllable AC unit can control the active power on two lines road simultaneously, joint
Save the quantity of controllable AC unit, save cost.
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
The invention provides a kind of active power regulator control system controlled based on Multi-coil transformer and power, see Fig. 1
Shown in, the structure of a kind of controlled based on Multi-coil transformer and the power active power regulator control system that Fig. 1 provides for the present invention
Schematic diagram.This system includes transformator and multiple power regulation group, and each power regulation group includes a controllable AC unit
And two uncontrollable alternating current unit；
The input of transformator 2 connects high voltage AC bus 9, and the outfan of transformator 2 connects low-voltage alternating-current bus 1；
Controllable AC unit includes rectification module 3, D.C. resistance 4, inversion module 5 and branch's three-winding transformer 6；Whole
The input of flow module 3 connects high voltage AC bus 9；D.C. resistance 4 is serially connected with outfan and the inversion module 5 of rectification module 3
Input between；The outfan of inversion module 5 connects a winding terminal of branch's three-winding transformer 6, and branch's three winding becomes
Two windings of the residue of depressor 6 are connected with the ac bus 8 of two lines trackside respectively；The common port of rectification module 3 and inversion mould
The common port of block 5 is connected；
First uncontrollable alternating current unit includes that the first switch 71, the first switch 71 two ends connect low-voltage alternating-current bus 1 respectively
And the ac bus 8 in Article 1 line side；
Second uncontrollable alternating current unit includes that second switch 72, second switch 72 two ends connect low-voltage alternating-current bus 1 respectively
And the ac bus 8 in Article 2 line side.
It is understood that after the first switch 71 or second switch 72 close, coupled transmission line of electricity 10 is according to newly
The impedance magnitude output of road and load, i.e. exports natural power, now cannot be controlled output；When first opens
When pass 71 or second switch 72 disconnect, corresponding transmission line of electricity 10 uses controllable AC unit to control, and i.e. uses and determines electric current, fixed electricity
Press and determine the control methods of power, it is possible to control the size and Orientation of transmission line of electricity 10 output, i.e. export controlled power.
Wherein, D.C. resistance 4 resistance here is determined on a case-by-case basis, and the present invention is not construed as limiting.
It is understood that transformator 2 here is used for carrying out reduced pressure operation, same, branch's three-winding transformer 6 is also
As reduced pressure operation.Use branch's three-winding transformer 6, i.e. can realize being controlled by a rectification module 3 and an inversion module 5
The purpose of two transmission lines of electricity 10 of system, decreases rectification module 3, D.C. resistance 4 and the quantity of inversion module 5, has saved one-tenth
This.
As preferably, rectification module 3 here is specially full-bridge rectifier.In another kind of embodiment, rectification here
Module 3 is specially silicon controlled rectifier.Depending on the which type of commutator of concrete employing can be according to practical situation, the present invention is to this
It is not construed as limiting.
Wherein, inversion module 5 here is specially full-bridge inverter.In another kind of embodiment, inversion module 5 here has
Body is sinewave inverter.Depending on the which type of inverter of concrete employing can be according to practical situation, this is not limited by the present invention
Fixed.
As preferably, the first switch 71 and second switch 72 are knife switch.In another kind of embodiment, first opens
Pass 71 and second switch 72 are AC circuit breaker.Certainly, the first switch 71 can use same type with second switch 72
Switch can also use different types of switch, the present invention does not limit the first switch 71 and the concrete kind of second switch 72
Type, as long as the switch that can be cut-off by manual control is all within protection scope of the present invention.
A kind of active power controlled based on Multi-coil transformer and power shown in Figure 2, that Fig. 2 provides for the present invention
The equivalent schematic of the controllable AC unit in regulator control system.
Wherein, rectification module 3 DC side DC voltage is:
Edr=K0(Er cosα-Xr)-RrId
Inversion module 5 DC side DC voltage is:
Edi=K0(Ei cosβ+Xi+XL)+(Ri+RL)Id
DC current on D.C. resistance 4 is:
Wherein, K0For by the connection factor in loop, RrFor the resistance that the loss of rectification module 3 is corresponding, RiFor inversion module 5
Resistance corresponding to loss, R is the resistance of D.C. resistance 4, IDFor the DC current on D.C. resistance 4, ErHand over for rectification module 3
The alternating voltage root-mean-square valve of stream side, EiFor the alternating voltage root-mean-square valve of inversion module 5 AC, α is touching of rectification module 3
Sending out angle, β is the Trigger Angle of inversion module 5, RLAnd XLIt is respectively resistance and the reactance of transmission line of electricity 10；Xr、XiIt is respectively rectification mould
The commutating reactance of the converter power transformer of block 3, inversion module 5.
It addition, the alternating current power supply that in the present invention, capable AC bus connects can be 110kV, 220kV, 500kV alternating current
Source.Certainly, this is not limited by the present invention.
The invention provides a kind of active power regulator control system controlled based on Multi-coil transformer and power, including multiple
Power regulation group, each power regulation group includes that a controllable AC unit parallel with one another and two uncontrollable exchanges are single
Unit.Controllable AC unit includes rectification module, D.C. resistance, inversion module and branch's three-winding transformer, it is possible to the most right
The output on two lines road controls in real time.Uncontrollable alternating current unit includes a switch, when the switch is closed, with its phase
According to line impedance and load parameter, circuit even determines that output, i.e. output are distributed, when opening by natural trend
When closing disconnection, coupled circuit is transmitted electricity by controllable AC unit.Visible, the present invention can select as required
The control methods of active power, mode variation；Meanwhile, controllable AC unit and uncontrollable alternating current unit are the most standby, when
Device in one unit of any of which breaks down, system all can use another way to regulate and control, it is to avoid device
Affecting the normal work of follow-up circuit during fault, reliability is high.Further, by using branch's three-winding transformer so that one
Controllable AC unit can control the active power on two lines road simultaneously, saves the quantity of controllable AC unit, has saved one-tenth
This.
It should be noted that in this manual, the relational terms of such as first and second or the like is used merely to one
Individual entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or operate it
Between exist any this reality relation or order.And, term " includes ", " comprising " or its any other variant are intended to
Contain comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include those
Key element, but also include other key elements being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Other identical element is there is also in including the process of described key element, method, article or equipment.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (7)
1. one kind based on the controlled active power regulator control system of Multi-coil transformer and power, it is characterised in that include transformator
And multiple power regulation group, each described power regulation group includes that a controllable AC unit and two uncontrollable exchanges are single
Unit；
The input of described transformator connects high voltage AC bus, and the outfan of described transformator connects low-voltage alternating-current bus；
Described controllable AC unit includes rectification module, D.C. resistance, inversion module and branch's three-winding transformer；Described whole
The input of flow module connects described high voltage AC bus；Described D.C. resistance is serially connected with outfan and the institute of described rectification module
State between the input of inversion module；The outfan of described inversion module connects a winding of described branch three-winding transformer
End, two windings of the residue of described branch three-winding transformer ac bus with two lines trackside respectively is connected；Described rectification
The common port of module is connected with the common port of described inversion module；
First uncontrollable alternating current unit include the first switch, described first switch ends connect respectively described low-voltage alternating-current bus with
And the ac bus in Article 1 line side；
Second uncontrollable alternating current unit include second switch, described second switch two ends connect respectively described low-voltage alternating-current bus with
And the ac bus in Article 2 line side.
System the most according to claim 1, it is characterised in that described rectification module is specially full-bridge rectifier.
System the most according to claim 1, it is characterised in that described rectification module is specially silicon controlled rectifier.
4. want the system described in 1 according to right, it is characterised in that described inversion module is specially full-bridge inverter.
5. want the system described in 1 according to right, it is characterised in that described inversion module is specially sinewave inverter.
System the most according to claim 1, it is characterised in that described first switch and described second switch are plug-in strip
Switch.
System the most according to claim 1, it is characterised in that described first switch and described second switch are exchange
Chopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808251.1A CN106208078A (en) | 2016-09-07 | 2016-09-07 | A kind of active power regulator control system controlled based on Multi-coil transformer and power |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610808251.1A CN106208078A (en) | 2016-09-07 | 2016-09-07 | A kind of active power regulator control system controlled based on Multi-coil transformer and power |
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| CN201610808251.1A Pending CN106208078A (en) | 2016-09-07 | 2016-09-07 | A kind of active power regulator control system controlled based on Multi-coil transformer and power |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196350A (en) * | 2017-07-14 | 2017-09-22 | 广东工业大学 | A kind of active power real-time control apparatus with controlled series resistance |
| CN107317329A (en) * | 2017-07-14 | 2017-11-03 | 广东工业大学 | A kind of three-winding rectifier transformer and the individually controllable transmission system of power altogether |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196350A (en) * | 2017-07-14 | 2017-09-22 | 广东工业大学 | A kind of active power real-time control apparatus with controlled series resistance |
| CN107317329A (en) * | 2017-07-14 | 2017-11-03 | 广东工业大学 | A kind of three-winding rectifier transformer and the individually controllable transmission system of power altogether |
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Application publication date: 20161207 |