CN205544288U - Unified power flow controller who combines with transverter is mended to cluster - Google Patents
Unified power flow controller who combines with transverter is mended to cluster Download PDFInfo
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- CN205544288U CN205544288U CN201620173259.0U CN201620173259U CN205544288U CN 205544288 U CN205544288 U CN 205544288U CN 201620173259 U CN201620173259 U CN 201620173259U CN 205544288 U CN205544288 U CN 205544288U
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- 239000003990 capacitor Substances 0.000 claims abstract description 67
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 238000004804 winding Methods 0.000 claims abstract description 23
- 230000005611 electricity Effects 0.000 claims description 23
- 238000013016 damping Methods 0.000 abstract description 6
- 230000008447 perception Effects 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 230000003284 homeostatic effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Abstract
The utility model provides an unified power flow controller who combines with transverter is mended to cluster, the one end of its first transverter is parallelly connected with series transformer's a side winding, and second transverter and shunt transformer are connected in order to the other end, series transformer's opposite side winding and transmission line are connected, the reactor unit is parallelly connected with first transverter after establishing ties with first switch, capacitor unit is parallelly connected with first transverter after establishing ties with the second switch. Compared with the prior art, the utility model provides a pair of unified power flow controller who combines with transverter is mended to cluster can provide perceptual fixed skew by the reactor and adjust, also can be provided the fixed skew regulation of capacitive by the condenser. Can be arranged in transmission line or distribution lines, carry out capacitive or perception regulation, improve line transmission capacity, improve the stability level of system, control scheme trend, reinforcing system damping, reduce cost. And reactor unit and capacitor unit arrange that the insulation level of the two reduces relatively in the transverter side.
Description
Technical field
This utility model relates to electric and electronic technical field, is specifically related to a kind of string and mends the THE UPFC being combined with inverter.
Background technology
Along with greatly developing of power system, the scale of new forms of energy accesses, the grid structure problem such as complexity, trend skewness, voltage support scarce capacity day by day brings new challenge to the safe and stable operation of electrical network.Some areas occur in that power supply bottleneck, it is impossible to meet load development need.From the point of view of electrical network practical situation, trend skewness is the key factor of restriction electric network transportation ability.Tradition electrical network lacks effective power flow regulating means, by using novel FACTS (Flexible Alternative Current Transmis System) device to improve system conditions, improve electrical network transmission capacity and be a reality and preferably select.
THE UPFC (Unified Power Flow Controller, UPFC) as the representative of the 3rd generation FACTS equipment, it is function the most comprehensive FACTS device up to now, can separately or concurrently realize the multiple basic functions such as shunt compensation, series compensation, phase shift and terminal voltage regulation.UPFC can realize power flow regulating, conservative control active power, reactive power in terms of power system stability, improves the conveying capacity of circuit, it is achieved optimizes and runs；Can be handled up by fast reactive at dynamic aspect again, the voltage of dynamic support access point, improves system voltage stability；System damping can also be improved, improve power-angle stability.
Conventional THE UPFC controls flexible function and remarkable, but it is promoted the use of in power system and does not possess capacity and price advantage.Traditional capacitor, reactor can be as circuit series compensations, but motility and speed of action all can not meet the requirement of accurately regulation.THE UPFC needs functional configuration more flexibly, needs to combine series compensation with THE UPFC.
Utility model content
In order to meet the needs of prior art, this utility model provides a kind of string and mends the THE UPFC being combined with inverter.
The technical solution of the utility model is:
Described THE UPFC includes reactor unit, capacitor unit, the first inverter, the second inverter, the first switch, second switch, the 3rd switch, series transformer and shunt transformer；
One end of described first inverter and the side winding parallel of described series transformer, the other end is sequentially connected with described second inverter and shunt transformer, and the other end of this shunt transformer accesses in bus or transmission line of electricity；The opposite side winding of described series transformer is connected with transmission line of electricity, this winding and described 3rd switch in parallel；
Described reactor unit and the first switch are in parallel with described first inverter after connecting, and the other end of described first switch accesses described series transformer；
Described capacitor unit is in parallel with described first inverter after connecting with second switch, and the other end of described second switch accesses described series transformer.
The preferred embodiment that this utility model provides is:
Described capacitor unit includes a capacitor or the series capacitor bank being made up of multiple capacitors or the Shunt Capacitor Unit being made up of multiple capacitors；Described Shunt Capacitor Unit includes that automatic switching switchs, and described automatic switching switch is used for the input of capacitance of shunt capacitor group device, exits, thus realizes the capacitance regulation of Shunt Capacitor Unit.
The preferred embodiment that this utility model provides is:
Described first switch includes any two switches of any one switch in chopper, disconnecting switch and electronic power switch or parallel connection；Described first switch is for controlling the input of described reactor unit and exiting；
Described second switch includes any two switches of any one switch in chopper, disconnecting switch and electronic power switch or parallel connection；Described second switch is for controlling the input of described capacitor unit and exiting；
Described 3rd switch includes any two switches of any one switch in chopper, disconnecting switch and electronic power switch or parallel connection；Described 3rd switch is for controlling the input of described series transformer and exiting.
The preferred embodiment that this utility model provides is:
When described first switch and second switch include described electronic power switch, described electronic power switch includes IGCT two-way switch, and this IGCT two-way switch includes the IGCT of reverse parallel connection；
The IGCT two-way switch of described first switch, is additionally operable to the Trigger Angle by changing its IGCT, adjusts the equiva lent impedance of described reactor unit.
The preferred embodiment that this utility model provides is: described first inverter and the second inverter all include in two level converters, three-level converter, diode clamp bit-type inverter, striding capacitance type inverter, modularization multi-level converter and H bridge cascade multi-level converter arbitrary in or multiple inverter.
Compared with immediate prior art, the beneficial effects of the utility model are:
1, a kind of string that this utility model provides mends the THE UPFC being combined with inverter, may be used in transmission line of electricity or distribution line, carry out capacitive or perception regulation, improve circuit transmission capacity, improve system stability level, control Line Flow, strengthen system damping, solve the problem that existing THE UPFC can not the most quickly regulate, reduce THE UPFC cost；
2, a kind of string that this utility model provides mends the THE UPFC being combined with inverter, reduces the class of insulation of reactor and capacitor, improves dynamic response performance；The capacity of voltage source converter can be reduced simultaneously.
3, a kind of string that this utility model provides mends the THE UPFC being combined with inverter, reactor unit can realize the regulation of capacitance by automatic switching switch, the IGCT two-way switch of reactor unit parallel connection can continuously adjust reactance, thus realize the classification to equivalence capacitive reactance and continuously adjust, lay particular emphasis on homeostatic control；Inverter can provide the most quickly two-ways regulation ability, lays particular emphasis on dynamically control.
Accompanying drawing explanation
Fig. 1: in this utility model embodiment, a kind of string mends the THE UPFC structural representation being combined with inverter；
Fig. 2: in this utility model embodiment, another kind of string mends the THE UPFC structural representation being combined with inverter；
Fig. 3: in this utility model embodiment, another string mends the THE UPFC structural representation being combined with inverter；
Fig. 4: reactor unit and the connection diagram of capacitor unit in this utility model embodiment；
Fig. 5: the equiva lent impedance scope schematic diagram of inverter in this utility model embodiment；
Fig. 6: in this utility model embodiment, a kind of string mends the compensation range schematic diagram of THE UPFC being combined with inverter；
Wherein, 101: reactor unit；102: capacitor unit；103: the first inverters；104: series transformer；105: the second inverters；106: shunt transformer.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely illustrated, obviously, described embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Combining accompanying drawing separately below, a kind of string providing this utility model embodiment is mended the THE UPFC that is combined with inverter and is illustrated.
Fig. 1 is that in this utility model embodiment, a kind of string mends the THE UPFC structural representation being combined with inverter, as it can be seen, the THE UPFC that in the present embodiment, string benefit is combined with inverter includes:
Reactor unit 101, capacitor unit the 102, first inverter 103, series transformer the 104, second inverter 105, shunt transformer 106, first switch, second switch and the 3rd switchs.Wherein,
One end of first inverter 103 and the side winding parallel of series-transformer 104 device, the other end is sequentially connected with the second inverter 105 and shunt transformer 106, and the other end of this shunt transformer 106 accesses in bus or transmission line of electricity；The opposite side winding of series transformer 104 is connected with transmission line of electricity, this winding and the 3rd switch in parallel.
Reactor unit 101 is in parallel with the first inverter 103 after connecting with the first switch, and the other end of the first switch accesses series transformer 104.
Capacitor unit 102 is in parallel with the first inverter 103 after connecting with second switch, and the other end of second switch accesses series transformer 104.
In this utility model embodiment, capacitor unit 102 includes a capacitor or the series capacitor bank of multiple capacitor composition or the Shunt Capacitor Unit of multiple capacitor composition；Shunt Capacitor Unit includes that automatic switching switchs, and this automatic switching switch is used for the input of capacitance of shunt capacitor group device, exits, thus realizes the capacitance regulation of Shunt Capacitor Unit.
In this utility model embodiment, the first switch includes any two switches of any one switch in chopper, disconnecting switch and electronic power switch or parallel connection, and this first switch is for controlling the input of reactor unit and exiting.When electronic power switch is IGCT two-way switch, it includes the IGCT of reverse parallel connection, Guan Bi second switch, with by the most in parallel with the first inverter for capacitor unit, disconnect the 3rd switch, change the Trigger Angle of IGCT in IGCT two-way switch, adjust the equiva lent impedance of reactor unit 101, thus transmission line of electricity is carried out capacitive compensation or inductive compensation:
When changing in IGCT two-way switch after the Trigger Angle of IGCT, the equivalent reactance of reactor unit 101 is less than the equivalent capacitive reactance of capacitor unit 102, then THE UPFC is operated in capacitive compensation pattern, and transmission line of electricity is carried out capacitive compensation.
When changing in IGCT two-way switch after the Trigger Angle of IGCT, the equivalent reactance of reactor unit 101 is more than the equivalent capacitive reactance of capacitor unit 102, then THE UPFC is operated in inductive compensation pattern, and transmission line of electricity is carried out inductive compensation.
By to the first inverter and the control of the second inverter, while realizing capacitive or inductive compensation function, it is also possible to control to seal in the phase angle of the accurate adjusting circuit of impedance.
Any one switch during second switch includes chopper, disconnecting switch and electronic power switch in this utility model embodiment or any two switches of parallel connection, this second switch is for controlling the input of capacitor unit and exiting.Wherein, two kinds of switches in parallel can be that chopper is in parallel with disconnecting switch, and chopper is in parallel with electronic power switch, and disconnecting switch is in parallel with electronic power switch.
In this utility model embodiment, the 3rd switch includes any two switches of any one switch in chopper, disconnecting switch and electronic power switch or parallel connection；3rd switch is for controlling the input of described series transformer and exiting.
By Guan Bi the first switch in the present embodiment, disconnecting second switch, disconnect the 3rd switch, THE UPFC is implemented for perception migration；Guan Bi second switch, disconnects the first switch, disconnects the 3rd switch, and THE UPFC is implemented for capacitive migration；Disconnecting the first switch, disconnect second switch, disconnect the 3rd switch, THE UPFC is implemented for the compensation without skew.
In this utility model embodiment first inverter the 103, second inverter 105 army include in two level converters, three-level converter, diode clamp bit-type inverter, striding capacitance type inverter, modularization multi-level converter and H bridge cascade multi-level converter arbitrary in or multiple inverter.
Fig. 2 is that in this utility model embodiment, preferred a kind of string mends the THE UPFC structural representation being combined with inverter, as shown in the figure, in the present embodiment, reactor unit 101 includes a reactor L, capacitor unit 102 includes a capacitor C, first inverter the 103, second inverter 105 is inverter VSC, and series transformer 104 is series transformer Tse.It is connected in parallel on the first inverter VSC two ends after reactor L and first switch series connection, also the first inverter VSC two ends it are connected in parallel on after capacitor C and second switch series connection, first switch and second switch are respectively connected in the side winding of series transformer Tse, the opposite side winding of series transformer Tse is connected in the transmission line of electricity between system 1 and system 2, and these winding two ends are parallel with the 3rd switch.Shunt transformer 106 access system side.
Fig. 3 is that in this utility model embodiment, another string mends the THE UPFC structural representation being combined with inverter, as shown in the figure, in the present embodiment, reactor unit 101 includes a reactor L, capacitor unit 102 includes a capacitor C, inverter 103 is inverter VSC, and coupling transformer 104 is coupling transformer Tse.Reactor L and first switch series connection, capacitor C is connected in parallel on the branch road two ends of reactor L and first switch composition, the series-parallel connection branch road of reactor L, the first switch and capacitor C composition is connected in parallel on the winding two ends, side of coupling transformer Tse with inverter VSC after connecting, the opposite side winding of coupling transformer Tse is connected in the transmission line of electricity between system 1 and system 2, and these winding two ends are parallel with second switch.
Fig. 4 is preferred reactor unit 101 and the connection diagram of capacitor unit 102 in this utility model embodiment, as shown in the figure, in the present embodiment, reactor unit 101 includes a reactor, and capacitor unit includes that capacitor and fling-cut switch, the first switch are IGCT two-way switch.Reactor is in parallel with capacitor again after connecting with IGCT two-way switch, and spark gap MOV and mechanical switch S is in parallel with capacitor respectively.Wherein, mechanical switch S is for shunt reactor unit 101 and capacitor unit 102 when reactor unit 101 or capacitor unit 102 break down.
Fig. 5 is the equiva lent impedance scope schematic diagram of the first inverter 103 in this utility model embodiment, as shown in the figure, in the present embodiment, inverter 103 is by regulating output voltage and flowing through the current amplitude of transmission line of electricity, angle relationship, can obtain inverter equiva lent impedance scope within the circle with Zinv as radius, reactance value scope is [-Xinv,+Xinv], set capacitive compensation and compensate as forward.
Fig. 6 is the compensation range schematic diagram that in this utility model embodiment, string mends the THE UPFC being combined with inverter, as shown in the figure, this string is mended the THE UPFC being combined with inverter and is included capacitive compensation pattern and inductive compensation pattern, it is possible to achieve the compensation of different impedances.
In this utility model, THE UPFC includes fixing capacitive off-set construction and fixed inductive off-set construction.Wherein,
1, fixing capacitive off-set construction
In the present embodiment, THE UPFC includes capacitor unit, the first inverter, the second inverter, second switch, the 3rd switch, series transformer and shunt transformer；
One end of first inverter and the side winding parallel of series transformer, the other end is sequentially connected with the second inverter and shunt transformer, and the other end of this shunt transformer accesses in bus or transmission line of electricity；The opposite side winding of series transformer is connected with transmission line of electricity, this winding and the 3rd switch in parallel；Capacitor unit is in parallel with the first inverter after connecting with second switch, and the other end of second switch accesses series transformer.
2, fixed inductive off-set construction
In the present embodiment, THE UPFC is for including reactor unit, the first inverter, the second inverter, the first switch, the 3rd switch, series transformer and shunt transformer；
One end of first inverter and the side winding parallel of series transformer, the other end is sequentially connected with the second inverter and shunt transformer, and the other end of this shunt transformer accesses in bus or transmission line of electricity；The opposite side winding of series transformer is connected with transmission line of electricity, this winding and the 3rd switch in parallel；Reactor unit and the first switch are in parallel with the first inverter after connecting, and the other end of the first switch accesses series transformer.
One, capacitive compensation pattern
The present embodiment sets the capacitive reactance of capacitor unit 102 as Xc, the equiva lent impedance scope of the first inverter 103 is within the circle with Zinv as radius, and capacitive compensation is that forward compensates, then under capacitive compensation pattern, string mends the THE UPFC being combined with the inverter compensation range in device side is capacitive reactance XcVector sum with inverter impedance Z inv.
The IGBT group angle continuously adjustable of the first switch in the present embodiment, it is also possible to regulating the impedance that the first inverter 103 seals in, the first inverter 103 has faster response speed, can be used for strengthening system damping, improves the dynamic response capability of system further.By putting into different condenser capacities, capacitive reactance X can be obtainedcSo that this string is mended the THE UPFC being combined with inverter and is realized dynamically regulation while classification regulates, and has bigger dynamic range of accommodation.
Two, inductive compensation pattern
The present embodiment sets the reactance of reactor as XL, the equiva lent impedance scope of the first inverter 103 is within the circle with Zinv as radius, and capacitive compensation is that forward compensates, then under inductive compensation pattern, string mends the THE UPFC being combined with the inverter compensation range in device side is reactance XLVector sum with inverter impedance Z inv.
If transmission line outlet fault in the present embodiment, in order to reduce the short circuit current of transmission line of electricity, reduce the energy that spark gap absorbs, then control IGCT in the first switch and all turn on, can also quickly regulate the resistance value that the first inverter 103 seals in simultaneously, improve the dynamic response capability of system.Compensate as-X to when dynamically regulating of inductive compensation pattern, the THE UPFC that string benefit is combined with the inverter maximum inductive in device side when realizing capacitive compensation patternL-Zinv, maximum capacitive compensates as Xc+Zinv。
The work process of the THE UPFC that benefit of preferably going here and there this utility model embodiment below is combined with inverter illustrates:
1, string mends the non-access system of THE UPFC being combined with inverter
Before string mends the THE UPFC access system being combined with inverter, second switch closes, first inverter 103 and the IGCT two-way switch locking of the first switch, string is mended the THE UPFC being combined with inverter and is in bypass condition, do not has any impact the running status of system.
2, string mends the THE UPFC access system being combined with inverter
String is mended the THE UPFC being combined with inverter and is determined the resistance value needing to compensate according to upper strata dispatch command and actual operating mode.When the reactance of long distance transmission line is bigger, need to operate in capacitive compensation pattern, compensate the reactance of transmission line of electricity, reduce loss.Cause overload when transmission line of electricity due to reasons such as short trouble or load increase, parallel line tripping operations, need to operate in emotional resistance compensation model, limit current amplitude.By the IGBT group angle of IGCT two-way switch in regulation the first switch, make string mend the THE UPFC being combined with inverter and be operated in capacitive compensation pattern or inductive compensation pattern, need to control the operation of the first inverter 103 according to what system damping regulated simultaneously, improve system dynamics response.
The THE UPFC that in this utility model embodiment, string benefit is combined with the inverter protective measure when the system failure or plant failure specifically includes that
1, when system side breaks down, such as when circuit generation singlephase earth fault or circuit cross stream, mend, for protection string, the THE UPFC being combined with inverter, need to close second switch, exit the operation of the first inverter 103.
When 2, breaking down inside the first inverter 103, need the switching device of the first inverter 103 is triggered pulse locking, and second switch is closed, exit the operation of the first inverter 103, now reactor unit 101 and capacitor unit 102 still can carry out capacitive compensation or inductive compensation.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can be by computer program and complete to instruct relevant hardware, described program can be stored in a computer read/write memory medium, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only, ROM) or random store-memory body (Random Access Memory, RAM) etc..Meanwhile, this utility model is not noted for the equipment such as the spark gap of protective condenser, series transformer, inverter and switching device thereof, gap, does not indicates that when device manufactures and designs implement actual with engineering, there are not these equipment.When Practical Project is implemented, have many present embodiment accompanying drawings do not mark isolation switch, chopper, current measure device, voltage measuring apparatus, when not indicating that engineering is actual and implement, there are not these equipment.
In this utility model embodiment, string mends the THE UPFC being combined with inverter, may be used in transmission line of electricity or distribution line, carry out capacitive or perception regulation, improve circuit transmission capacity, improve system stability level, control Line Flow, strengthen system damping, solve the problem that existing THE UPFC can not the most quickly regulate, reduce THE UPFC cost.
Another embodiment of this utility model is as it is shown on figure 3, reactor unit, capacitor unit and inverter unit access the side of series transformer after being connected in parallel.By the IGBT group angle of IGCT two-way switch in regulation the first switch, regulation is incorporated to the reactance value of reactor unit, and the automatic switching of Capacitor banks can regulate the capacitance being incorporated to capacitor, and inverter unit can realize the impedance circle with Zinv as radius.Regulated by the equiva lent impedance of reactor unit, capacitor unit and inverter and can control to be injected into the impedance of system side, thus realize the dynamic regulation of impedance on a large scale.
The situation of inductance and electric capacity of accessing it should be noted that connect with inverter is not limited to the structure shown in embodiment, any by inductance being increased or decreased and electric capacity realizes the situation of series compensation on a large scale, within the scope of broadly falling into this utility model.The side in parallel that Unified Power Flow controls may be coupled to the bus of this circuit can also be connected to All other routes, within the scope of broadly falling into this utility model.
Obviously, those skilled in the art can carry out various change and modification without deviating from spirit and scope of the present utility model to this utility model.So, if these amendments of the present utility model and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model is also intended to comprise these change and modification.
Claims (5)
1. go here and there and mend the THE UPFC that is combined with inverter for one kind, it is characterised in that described THE UPFC includes electricity
Anti-device unit, capacitor unit, the first inverter, the second inverter, the first switch, second switch, the 3rd switch, series connection
Transformator and shunt transformer；
One end of described first inverter and the side winding parallel of described series transformer, the other end is sequentially connected with described second and changes
Stream device and shunt transformer, the other end of this shunt transformer accesses in bus or transmission line of electricity；Another of described series transformer
Side winding is connected with transmission line of electricity, this winding and described 3rd switch in parallel；
Described reactor unit and the first switch are in parallel with described first inverter after connecting, and the other end of described first switch accesses
Described series transformer；
Described capacitor unit is in parallel with described first inverter after connecting with second switch, and the other end of described second switch accesses
Described series transformer.
A kind of string the most as claimed in claim 1 mends the THE UPFC being combined with inverter, it is characterised in that
Described capacitor unit includes a capacitor or the series capacitor bank being made up of multiple capacitors or by multiple electric capacity
The Shunt Capacitor Unit of device composition；Described Shunt Capacitor Unit includes that automatic switching switchs, and described automatic switching switch is for parallel connection
The input of capacitor in Capacitor banks, exit, thus realize the capacitance regulation of Shunt Capacitor Unit.
A kind of string the most as claimed in claim 1 mends the THE UPFC being combined with inverter, it is characterised in that
Described first switch includes that any one switch in chopper, disconnecting switch and electronic power switch or any two of parallel connection are opened
Close；Described first switch is for controlling the input of described reactor unit and exiting；
Described second switch includes that any one switch in chopper, disconnecting switch and electronic power switch or any two of parallel connection are opened
Close；Described second switch is for controlling the input of described capacitor unit and exiting；
Described 3rd switch includes that any one switch in chopper, disconnecting switch and electronic power switch or any two of parallel connection are opened
Close；Described 3rd switch is for controlling the input of described series transformer and exiting.
A kind of string the most as claimed in claim 3 mends the THE UPFC being combined with inverter, it is characterised in that
When described first switch and second switch include described electronic power switch, described electronic power switch includes that IGCT is two-way
Switch, this IGCT two-way switch includes the IGCT of reverse parallel connection；
The IGCT two-way switch of described first switch, is additionally operable to the Trigger Angle by changing its IGCT, adjusts described reactor
The equiva lent impedance of unit.
A kind of string the most as claimed in claim 1 mends the THE UPFC that is combined with inverter, it is characterised in that described the
One inverter and the second inverter all include two level converters, three-level converter, diode clamp bit-type inverter, fly across electricity
In arbitrary in appearance type inverter, modularization multi-level converter and H bridge cascade multi-level converter or multiple inverter.
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| CN201620173259.0U CN205544288U (en) | 2016-03-08 | 2016-03-08 | Unified power flow controller who combines with transverter is mended to cluster |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703370A (en) * | 2016-03-08 | 2016-06-22 | 全球能源互联网研究院 | Series compensation and transverter-combined unified power flow controller |
| WO2018197140A1 (en) * | 2017-04-27 | 2018-11-01 | Siemens Aktiengesellschaft | System and method for stabilizing an alternating voltage grid |
| WO2019075703A1 (en) * | 2017-10-19 | 2019-04-25 | 全球能源互联网研究院有限公司 | Mixed power flow control device |
| CN117498284A (en) * | 2023-10-26 | 2024-02-02 | 武汉大学 | Series compensation capacitor device based on short-circuit fault current intelligent self-driving |
-
2016
- 2016-03-08 CN CN201620173259.0U patent/CN205544288U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703370A (en) * | 2016-03-08 | 2016-06-22 | 全球能源互联网研究院 | Series compensation and transverter-combined unified power flow controller |
| CN105703370B (en) * | 2016-03-08 | 2024-02-02 | 全球能源互联网研究院 | Unified power flow controller combining series compensation and current converter |
| WO2018197140A1 (en) * | 2017-04-27 | 2018-11-01 | Siemens Aktiengesellschaft | System and method for stabilizing an alternating voltage grid |
| US11476672B2 (en) | 2017-04-27 | 2022-10-18 | Siemens Energy Global GmbH & Co. KG | System and method for stabilizing an alternating voltage grid |
| WO2019075703A1 (en) * | 2017-10-19 | 2019-04-25 | 全球能源互联网研究院有限公司 | Mixed power flow control device |
| CN117498284A (en) * | 2023-10-26 | 2024-02-02 | 武汉大学 | Series compensation capacitor device based on short-circuit fault current intelligent self-driving |
| CN117498284B (en) * | 2023-10-26 | 2024-04-05 | 武汉大学 | Series compensation capacitor device based on short-circuit fault current intelligent self-driving |
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