CN106549383A - A kind of control system and THE UPFC of THE UPFC - Google Patents
A kind of control system and THE UPFC of THE UPFC Download PDFInfo
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- CN106549383A CN106549383A CN201610972231.8A CN201610972231A CN106549383A CN 106549383 A CN106549383 A CN 106549383A CN 201610972231 A CN201610972231 A CN 201610972231A CN 106549383 A CN106549383 A CN 106549383A
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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)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The embodiment of the invention discloses the control system and THE UPFC of a kind of THE UPFC, the control system of the THE UPFC includes：Control unit, protection location and valve base control unit, the valve base control unit are connected with the protection location, and the protection location can directly transmit blocking order to the valve base control unit.Thus, even if locking can be also completed when control unit breaks down, so as to improve the reliability of system.
Description
Technical field
The present invention relates to technical field of electric power, and in particular to a kind of control system and Unified Power Flow of THE UPFC
Controller.
Background technology
THE UPFC (UPFC) is connected in parallel in electrical network, is that a kind of flexible AC of powerful, excellent is defeated
Electric system (FACTS).As shown in figure 1, UPFC mainly include share direct lateral capacitance two current transformers (side converter in parallel and
Series connection side converter) and two transformators (side transformer in parallel and series connection side transformer), the side converter in parallel in left side, such as
STATCOM, can effectively produce reactive current, and compensation system reactive power maintains the voltage of node, but the electricity to power transmission line
Pressure compensation ability is weaker, and the series connection side converter on right side, such as SSSC, the voltage of power transmission line can be effectively compensated for, is controlled defeated
The trend of electric wire, but it is not strong to the compensation ability of reactive current, two devices are integrated, existing very strong offset voltage energy
Power, the ability for having very strong compensating power again.Additionally, UPFC also includes the control system that break-make control is carried out to current transformer
System.Although not being specifically illustrating, control system would generally include protection location, control unit and valve base control unit, wherein
Valve base control unit is unblocked with controlling current transformer for receiving the instruction that unblocks, and protection location is by being arranged on UPFC everywhere
The working condition of Sensor monitoring UPFC, and control unit is notified when breaking down, control unit is then responsible for transmission and is unblocked
Instruct valve base control unit.
Protection location and control unit in most of UPFC control systems is one, and reliability and motility are not enough；
Although protection location and control unit are discrete in some systems, protection location is needed by control when detecting failure
Unit locking processed, is equally that reliability is not enough.
The content of the invention
Therefore, the technical problem to be solved in the present invention is how to improve the reliability of UPFC systems.
For this purpose, a kind of control system of THE UPFC is embodiments provided, for the unified tide
The current transformer of stream controller carries out break-make control, including：Control unit, for when compensating to transmission line of electricity, sending solution
Lock instruction；When faults itself is detected, the first blocking order is sent；Protection location, detects the Unified Power Flow for working as
When controller breaks down, the second blocking order is sent；Valve base control unit, is connected with the protection location and control unit,
For when first blocking order or second blocking order is received, by closing the THE UPFC
Current transformer valve is cutting out the current transformer；When the unlock instruction is only received, by opening the current transformer valve come open-minded
The current transformer；When receiving blocking order and unlock instruction at the same time, the change is closed by closing the current transformer valve
Stream device.
Optionally, the protection location includes the first protection location and the second protection location, and when one of protection is single
When unit is in running order, another protection location switches to resting state, when one of protection location breaks down, another
Individual protection location switches to working condition.
Optionally, the valve base control unit includes the first valve base control unit and the second valve base control unit, described
One protection location is connected with the first valve base control unit and the second valve base control unit respectively, second protection location point
It is not connected with the first valve base control unit and the second valve base control unit, the first valve base control unit and the second valve base
Control unit is all connected with the current transformer valve.
Optionally, described control unit includes the first control unit and the second control unit, first control unit and
Second control unit is interconnected, for obtaining the status information of other side, and when one of control unit is in running order
When, another control unit switches to resting state, and when one of control unit breaks down, another control unit switches
To working condition.
Optionally, described control unit is side control unit in parallel or series side control unit.
The embodiment of the present invention additionally provides a kind of THE UPFC, and power transmission line parallel-connection, including：Side transformation in parallel
Device, its one end are connected with the transmission line of electricity；And translocation current transformer, the other end of its one end and the side transformer in parallel connects
Connect；And translocation current transformer valve, its one end is connected with the other end of the side converter in parallel, for controlling the side unsteady flow in parallel
The shut-off of device；Side control system in parallel, is connected with described and translocation current transformer valve the other end, the control system bag in side in parallel
Include：Side control unit in parallel, for when reactive-current compensation is carried out to transmission line of electricity, sending the first unlock instruction, working as detection
During to faults itself, the first blocking order is sent；Side protection location in parallel, detects the THE UPFC for working as
During raw failure, the second blocking order is sent；Side valve base control unit in parallel, with the side protection location in parallel and side control in parallel
Unit connects, and becomes for when first blocking order and/or second blocking order is received, closing the side in parallel
Stream device valve；When first unlock instruction is only received, the side converter valve in parallel is opened；Described is received at the same time
When one blocking order and/or the second blocking order and first unlock instruction, the side converter valve in parallel is closed；Series side
Transformator, its one end are connected with the transmission line of electricity；Current transformer, the other end of its one end and the side transformer of connecting are surveyed in series connection
Connection；Current transformer valve is surveyed in series connection, and its one end is connected with the other end of the series connection side converter, is become for controlling the series side
The shut-off of stream device；Series side control system, the other end for surveying current transformer valve with the series connection are connected, the series side control system
Including：Series side control unit, for when voltage compensation is carried out to transmission line of electricity, sends the second unlock instruction, when detecting
During faults itself, the 3rd blocking order is sent；Series side protection location, detects the THE UPFC generation for working as
During failure, the 4th blocking order is sent；Series side valve base control unit, it is single with the series side control unit and series side protection
Unit's connection, for when the 3rd blocking order or four blocking orders is received, closing the series connection side converter valve；
When only receiving second unlock instruction, the series connection side converter valve is opened；Receive the 3rd locking at the same time to refer to
When order and/or the 4th blocking order and second unlock instruction, the series connection side converter valve is closed；Wherein, the parallel connection
Side protection location is interconnected with the series side protection location, for when a side detects the failure wherein, to another
Side sends blocking order.
Optionally, the side protection location in parallel includes the first side protection location in parallel and the second side in parallel protection location,
The side valve base control unit in parallel includes the first side valve base control unit in parallel and the second side valve base control unit in parallel, described
Side valve base control unit in parallel with described first and the second side valve base control unit in parallel connect first side in parallel protection location respectively
Connect, side valve base control unit in parallel with described first and the second side valve base control in parallel respectively of the described second side in parallel protection location
Unit connects, the first side valve base control unit in parallel and the second side valve base control unit in parallel all with the side unsteady flow in parallel
Device valve connects；The series side protection location includes the first series side protection location and the second series side protection location, the string
Connection side valve base control unit includes the first series side valve base control unit and the second series side valve base control unit, first string
Connection side protection location is connected with the first series side valve base control unit and the second series side valve base control unit respectively, described
Second series side protection location is connected with the first series side valve base control unit and the second series side valve base control unit respectively
Connect, the first series side valve base control unit and the second series side valve base control unit are all connected with the side converter valve of connecting
Connect.
Optionally, the side control unit in parallel includes the first side control unit in parallel and the second side in parallel control unit,
The first side control unit in parallel be connected on the described first side protection location in parallel and the first side valve base control unit in parallel it
Between, the described second side in parallel control unit is connected on the described second side protection location in parallel and the second side valve base control unit in parallel
Between；The series side control unit includes the first series side control unit and the second series side control unit, first string
Connection side control unit is connected between the first series side protection location and the first series side valve base control unit, and described second
Series side control unit is connected between the second series side protection location and the second series side valve base control unit；Wherein,
Described first side in parallel control unit is connected with the first series side control unit and the second series side control unit respectively, institute
State the second side in parallel control unit to be connected with the first series side control unit and the second series side control unit respectively, be used for
Any one of control unit is enable to send blocking order to the described control unit of offside.
Optionally, the described first side control unit in parallel and the second side in parallel control unit are interconnected, first string
Connection side control unit and the second series side control unit are interconnected, and for obtaining the status information of other side, and work as one of them
When control unit is in running order, another control unit switches to resting state, when one of control unit breaks down
When, another control unit switches to working condition.
The control system and THE UPFC of the THE UPFC of the embodiment of the present invention, by making protection location
When failure is detected, without control unit, blocking order is directly transmitted to valve base control unit so that even if single in control
Locking can be also completed when unit breaks down, so as to improve the reliability of system.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
Needed for embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of structural representation of existing THE UPFC；
Structural representations of the Fig. 2 for a kind of control system of THE UPFC of the embodiment of the present invention；
Structural representations of the Fig. 3 for a kind of THE UPFC of the embodiment of the present invention；
Structural representations of the Fig. 4 for another kind of THE UPFC of the embodiment of the present invention.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to the scope of protection of the invention.
Technical scheme is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2 a kind of control system 1 of THE UPFC is embodiments provided, for unification
The current transformer of flow controller carries out break-make control, including：
Control unit 1A, for when compensating to transmission line of electricity, sending unlock instruction；When detecting faults itself
When, send the first blocking order；
Protection location 1B, for when detecting THE UPFC and breaking down, sending the second blocking order；
Valve base control unit 1C, is connected with the protection location and control unit, for receiving first blocking order
Or during second blocking order, the current transformer cuts out by the current transformer valve 3A of the cut out THE UPFC；
When the unlock instruction is only received, the current transformer is opened by opening the current transformer valve；Receive at the same time and close
When lock instruction and unlock instruction, the current transformer is closed by closing the current transformer valve.
The control system of the THE UPFC of the embodiment of the present invention, by making protection location when failure is detected,
Without control unit, blocking order is directly transmitted to valve base control unit so that even if when control unit breaks down
Locking can be completed, so as to improve the reliability of system.
Preferably, the protection location includes the first protection location and the second protection location, and when one of protection is single
When unit is in running order, another protection location switches to resting state, when one of protection location breaks down, another
Individual protection location switches to working condition, which thereby enhances the reliability of protection location.
In order to further improve reliability, it is preferred that the valve base control unit includes the first valve base control unit and
Two valve base control units, first protection location are connected with the first valve base control unit and the second valve base control unit respectively
Connect, second protection location is connected with the first valve base control unit and the second valve base control unit respectively, described first
Valve base control unit and the second valve base control unit are all connected with the current transformer valve, and thus the reliability of valve base control unit is obtained
To raising.
In order to further improve reliability, it is preferred that described control unit includes that the first control unit and the second control are single
Unit, first control unit and the second control unit are interconnected, and for obtaining the status information of other side, and work as one of them
When control unit is in running order, another control unit switches to resting state, when one of control unit breaks down
When, another control unit switches to working condition, and thus the reliability of control unit is improved.
Optionally, described control unit is side control unit in parallel or series side control unit.When the control unit is simultaneously
Connection side control unit, which is mainly used in carrying out reactive-current compensation to transmission line of electricity；When being series side control when the control unit
Unit, which is mainly used in carrying out voltage compensation to transmission line of electricity.
As shown in figure 3, embodiments provide a kind of THE UPFC, and power transmission line parallel-connection, circuit are defeated
It is U1 to enter point voltage, and output point voltage is Uc, is specifically included：
Side transformer in parallel 41, its one end are connected with the transmission line of electricity；
And translocation current transformer 40, its one end is connected with the other end of the side transformer in parallel；
And translocation current transformer valve 31, its one end is connected with the other end of the side converter in parallel, for control it is described simultaneously
The shut-off of connection side converter；
Side control system 10 in parallel, is connected with described and translocation current transformer valve the other end, the side control system in parallel
Including：
Side control unit 13 in parallel, for when reactive-current compensation is carried out to transmission line of electricity, sending the first unlock instruction,
When faults itself is detected, the first blocking order is sent；
Side protection location 11 in parallel, closes for when detecting the THE UPFC and breaking down, sending second
Lock instruction；
Side valve base control unit 12 in parallel, is connected with the side protection location in parallel and side control unit in parallel, for
When receiving first blocking order and/or second blocking order, the side converter valve in parallel is closed；Only receiving
During to first unlock instruction, the side converter valve in parallel is opened；Receive at the same time first blocking order and/or
When the second blocking order and first unlock instruction, the side converter valve in parallel is closed；
Series connection side transformer 51, its one end are connected with the transmission line of electricity；
Current transformer 50 is surveyed in series connection, and its one end is connected with the other end of the series connection side transformer；
Current transformer valve 32 is surveyed in series connection, and its one end is connected with the other end of the series connection side converter, for controlling the string
The shut-off of connection side converter, and translocation current transformer valve 31 and series connection survey current transformer valve 32 collectively form current transformer valve cell 30；
Series side control system 20, the other end for surveying current transformer valve with the series connection are connected, the series side control system
Including：
Series side control unit 23, for when voltage compensation is carried out to transmission line of electricity, sending the second unlock instruction, working as inspection
When measuring faults itself, the 3rd blocking order is sent；
Series side protection location 21, closes for when detecting the THE UPFC and breaking down, sending the 4th
Lock instruction；
Series side valve base control unit 22, is connected with the series side control unit and series side protection location, for
When receiving the 3rd blocking order or four blocking orders, the series connection side converter valve is closed；It is described only receiving
During the second unlock instruction, the series connection side converter valve is opened；The 3rd blocking order is received at the same time and/or the 4th is closed
When lock instruction and second unlock instruction, the series connection side converter valve is closed；
Wherein, the side protection location in parallel is interconnected with the series side protection location, is examined for a side wherein
When measuring the failure, blocking order is sent to the opposing party.
It is similar, the THE UPFC of the embodiment of the present invention, also by making protection location when failure is detected, no
Through control unit, blocking order is directly transmitted to valve base control unit so that even if also can when control unit breaks down
Locking is completed, so as to improve the reliability of system；In addition the interconnection of side protection location and series side protection location in parallel,
Further increase reliability.
Further, the side in parallel of the THE UPFC can also include side in parallel lock 42, be arranged on side in parallel and become
Between depressor 41 and the input point of transmission line of electricity, the side lock in parallel 42 is connected with side protection location in parallel 11, and receives the side in parallel
The control of protection location and break-make.
Further, the series side of the THE UPFC can also include the first lock of series side 55, and which receives series side
Protection location is controlled, and its disconnection can cause the disconnection of transmission line of electricity.
Further, the series connection side transformer 51 of the THE UPFC can be thyristor control transformator, play
The effect of static reactive, specifically includes valve base electronic device unit 54, IGCT 53 and second lock of side in parallel 52, wherein,
Valve base electronic device unit 54 is connected with the control pole of series side valve base control unit 22 and IGCT 53 respectively, side in parallel second
Lock 52 is connected in parallel between the negative electrode and anode of IGCT 53, and second lock of side in parallel 52 is controlled by series side protection location 21
System, IGCT 53 are arranged on the secondary side of series connection side transformer 51.
As shown in figure 4, embodiments providing another kind of THE UPFC, it is in embodiment illustrated in fig. 3
On the basis of the improvement that carries out, same section repeats no more, and which further includes：
Side control system in parallel 10 is specifically included：The side protection locations in parallel of first parallel connection side protection location 11A and second
11B, the first side control unit 13A in parallel and the second side in parallel control unit 13B, the first side valve base control unit 12A in parallel and
Second side valve base control unit 12B in parallel；Wherein, the described first side protection location in parallel side valve base in parallel with described first respectively
Control unit and the second side valve base control unit connection in parallel, the described second side in parallel protection location are in parallel with described first respectively
Side valve base control unit and the second side valve base control unit connection in parallel, the described first side valve base control unit and second in parallel is simultaneously
Connection side valve base control unit is all connected with the side converter valve in parallel；
Series side control system 20 is specifically included：First series side protection location 21A and the second series side protection location
21B, the first series side control unit 23A and the second series side control unit 23B, the first series side valve base control unit 22A and
Second series side valve base control unit 2B；Wherein, the first series side protection location respectively with the first series side valve base
Control unit and the connection of the second series side valve base control unit, the second series side protection location are connected with described first respectively
Side valve base control unit and the connection of the second series side valve base control unit, the first series side valve base control unit and the second string
Connection side valve base control unit is all connected with the series connection side converter valve.
Optionally, the described first side in parallel control unit is connected on the described first side protection location in parallel and the first side in parallel
Between valve base control unit, the second side control unit in parallel is connected on the described second side protection location in parallel and second in parallel
Between side valve base control unit.
Optionally, the first series side control unit is connected on the first series side protection location and the first series side
Between valve base control unit, the second series side control unit is connected on the second series side protection location and the second series connection
Between side valve base control unit.
Optionally, the described first side control unit in parallel respectively with the first series side control unit and the second series side
Control unit connects, the second side control unit in parallel respectively with the first series side control unit and the second series side control
Unit connection processed, for enabling any one of control unit to send blocking order to the described control unit of offside.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And thus it is extended obvious change or
Among changing still in the protection domain of the invention.
Claims (9)
1. a kind of control system of THE UPFC, carries out break-make control for the current transformer to the THE UPFC
System, it is characterised in that include：
Control unit, for when compensating to transmission line of electricity, sending unlock instruction；When faults itself is detected, send
First blocking order；
Protection location, for when detecting the THE UPFC and breaking down, sending the second blocking order；
Valve base control unit, is connected with the protection location and control unit, for receive first blocking order or
During second blocking order, the current transformer cuts out by the current transformer valve of the cut out THE UPFC；Only
When receiving the unlock instruction, the current transformer is opened by opening the current transformer valve；Receive locking at the same time to refer to
When order and unlock instruction, the current transformer is closed by closing the current transformer valve.
2. control system according to claim 1, it is characterised in that the protection location includes the first protection location and
Two protection locations, and when one of protection location is in running order, another protection location switches to resting state, when which
In protection location when breaking down, another protection location switches to working condition.
3. control system according to claim 2, it is characterised in that the valve base control unit includes that the first valve base is controlled
Unit and the second valve base control unit, first protection location respectively with the first valve base control unit and the second valve base control
Unit connection processed, second protection location are connected with the first valve base control unit and the second valve base control unit respectively,
The first valve base control unit and the second valve base control unit are all connected with the current transformer valve.
4. the control system according to any one of claim 1-3, it is characterised in that described control unit includes the first control
Unit processed and the second control unit, first control unit and the second control unit are interconnected, for obtaining the shape of other side
State information, and when one of control unit is in running order, another control unit switches to resting state, when wherein one
When individual control unit breaks down, another control unit switches to working condition.
5. the control system according to any one of claim 1-3, it is characterised in that described control unit is side control in parallel
Unit processed or series side control unit.
6. a kind of THE UPFC, with power transmission line parallel-connection, it is characterised in that include：
Side transformer in parallel, its one end are connected with the transmission line of electricity；
And translocation current transformer, its one end is connected with the other end of the side transformer in parallel；
And translocation current transformer valve, its one end is connected with the other end of the side converter in parallel, for controlling the side change in parallel
The shut-off of stream device；
Side control system in parallel, is connected with described and translocation current transformer valve the other end, and the side control system in parallel includes：
Side control unit in parallel, for when reactive-current compensation is carried out to transmission line of electricity, sending the first unlock instruction, working as detection
During to faults itself, the first blocking order is sent；
Side protection location in parallel, for when detecting the THE UPFC and breaking down, sending the second blocking order；
Side valve base control unit in parallel, is connected with the side protection location in parallel and side in parallel control unit, for receiving
When first blocking order and/or second blocking order, the side converter valve in parallel is closed；It is described only receiving
During the first unlock instruction, the side converter valve in parallel is opened；First blocking order is received at the same time and/or second is closed
When lock instruction and first unlock instruction, the side converter valve in parallel is closed；
Series connection side transformer, its one end are connected with the transmission line of electricity；
Current transformer is surveyed in series connection, and its one end is connected with the other end of the series connection side transformer；
Current transformer valve is surveyed in series connection, and its one end is connected with the other end of the series connection side converter, is become for controlling the series side
The shut-off of stream device；
Series side control system, the other end for surveying current transformer valve with the series connection are connected, and the series side control system includes：
Series side control unit, for when voltage compensation is carried out to transmission line of electricity, sends the second unlock instruction, when detect from
Die barrier when, send the 3rd blocking order；
Series side protection location, for when detecting the THE UPFC and breaking down, sending the 4th blocking order；
Series side valve base control unit, is connected with the series side control unit and series side protection location, for receiving
When the 3rd blocking order or four blocking orders, the series connection side converter valve is closed；Second solution is being received only
During lock instruction, the series connection side converter valve is opened；The 3rd blocking order and/or the 4th blocking order are received at the same time
During with second unlock instruction, the series connection side converter valve is closed；
Wherein, the side protection location in parallel is interconnected with the series side protection location, is detected for a side wherein
During the failure, blocking order is sent to the opposing party.
7. THE UPFC according to claim 6, it is characterised in that：
The side protection location in parallel includes the first side protection location in parallel and the second side in parallel protection location, the side valve in parallel
Base control unit includes the first side valve base control unit in parallel and the second side valve base control unit in parallel, and the described first side in parallel is protected
Shield unit is connected with the described first side valve base control unit in parallel and the second side valve base control unit in parallel respectively, and described second simultaneously
Connection side protection location is connected with the described first side valve base control unit in parallel and the second side valve base control unit in parallel respectively, described
First side valve base control unit in parallel and the second side valve base control unit in parallel are all connected with the side converter valve in parallel；
The series side protection location includes the first series side protection location and the second series side protection location, the series connection side valve
Base control unit includes the first series side valve base control unit and the second series side valve base control unit, and first series side is protected
Shield unit is connected with the first series side valve base control unit and the second series side valve base control unit respectively, second string
Connection side protection location is connected with the first series side valve base control unit and the second series side valve base control unit respectively, described
First series side valve base control unit and the second series side valve base control unit are all connected with the series connection side converter valve.
8. THE UPFC according to claim 7, it is characterised in that：
The side control unit in parallel includes the first side control unit in parallel and the second side in parallel control unit, and described first is in parallel
Side control unit is connected between the described first side protection location in parallel and the first side valve base control unit in parallel, and described second simultaneously
Connection side control unit is connected between the described second side protection location in parallel and the second side valve base control unit in parallel；
The series side control unit includes the first series side control unit and the second series side control unit, first series connection
Side control unit is connected between the first series side protection location and the first series side valve base control unit, second string
Connection side control unit is connected between the second series side protection location and the second series side valve base control unit；
Wherein, the described first side in parallel control unit is single with the first series side control unit and the control of the second series side respectively
Unit's connection, the second side control unit in parallel respectively with the first series side control unit and the second series side control unit
Connection, for enabling any one of control unit to send blocking order to the described control unit of offside.
9. THE UPFC according to claim 8, it is characterised in that the described first side control unit in parallel and the
Two side in parallel control units are interconnected, and the first series side control unit and the second series side control unit are interconnected,
For obtaining the status information of other side, and when one of control unit is in running order, another control unit is switched to
Resting state, when one of control unit breaks down, another control unit switches to working condition.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972231.8A CN106549383B (en) | 2016-10-31 | 2016-10-31 | A kind of control system and THE UPFC of THE UPFC |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972231.8A CN106549383B (en) | 2016-10-31 | 2016-10-31 | A kind of control system and THE UPFC of THE UPFC |
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| CN106549383B CN106549383B (en) | 2019-07-02 |
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