CN106058826A - Method for handling failure of alternating current side of invertor side of mixed-type direct current transmission system - Google Patents
Method for handling failure of alternating current side of invertor side of mixed-type direct current transmission system Download PDFInfo
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- CN106058826A CN106058826A CN201610393632.8A CN201610393632A CN106058826A CN 106058826 A CN106058826 A CN 106058826A CN 201610393632 A CN201610393632 A CN 201610393632A CN 106058826 A CN106058826 A CN 106058826A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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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
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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- Direct Current Feeding And Distribution (AREA)
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Abstract
This invention discloses a method for handling failure of alternating current side of invertor side of mixed-type direct current transmission system. The method is characterized by comprising the following steps: steps1, detect whether a serious failure is happened in an alternating current network of the invertor side; if so, enter the step 2; the serious failure means that the failure happened in the network of the invertor side makes the positive sequence voltage of the connection part of an inversion converter station and the alternating current network less than 0.6 time of a rated voltage; step2, shift the phase of a rectification converter station to an inversion state; in other words, adjust the trigger angle of a converter valve of a thyristor of the rectifier side to be greater than 90 degrees; and step 3, the voltage source type converter of the inversion converter station triggers a single-phase valve in three phases to run straightly and simultaneously locks the other two phases of valves. By adoption of this method, the mixed-type direct current transmission system can safely and reliably pass through the serious failure of the alternating current network of the invertor side; the overvoltage of the inner capacitor of the voltage source type converter and the overvoltage of the direct current side can be limited; and after the failure of alternating current network is cleared, the mixed-type direct current transmission system can be resumed quickly and steadily.
Description
Technical field
The present invention relates to a kind of mixed type DC transmission system receiving end AC fault handling method.
Background technology
HVDC transmission system can be divided into two types: customary DC transmission system (LCC-based on IGCT technology
HVDC) and flexible direct current power transmission system based on all-controlling power electronics device technology (Flexible-HVDC), the two respectively has
Pluses and minuses, therefore combine customary DC transmission of electricity and before the Hybrid HVDC system of flexible DC power transmission will have engineer applied
Scape, it has concurrently, and customary DC transmission losses is little, running technology is ripe and flexible DC power transmission can be powered to passive network, no
The advantage that commutation failure can occur.
But, the AC network connected when Hybrid HVDC system inverter side (i.e. receiving end) voltage source converter is sent out
During raw catastrophe failure, alternating voltage falls seriously, inverter side inverter AC power output critical constraints, and the rectification side change of current
Device carries dc power still according to set value and power reference to inverter side, and now inverter side voltage source converter DC side is defeated
Entering power and be much larger than AC output, power difference causes the internal energy-storage travelling wave tube electric capacity of voltage source converter serious
Overvoltage, simultaneously as the voltage sum that voltage source converter DC voltage is internal some electric capacity, also there will be seriously mistake
Voltage.
Summary of the invention
For the problems referred to above, the present invention provides a kind of mixed type DC transmission system receiving end AC fault handling method,
Ensure that mixed type DC transmission system reliably and securely passes through the catastrophe failure of inverter side AC network, limit voltage source
The overvoltage of inverter inside electric capacity and DC side overvoltage, after AC network fault clearance, mixed type DC transmission system
Can quickly, smoothly resume operation.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of mixed type DC transmission system receiving end AC fault handling method, it is characterised in that comprise the steps:
Whether step 1, detection receiving end AC network there is catastrophe failure, if there is catastrophe failure, enter step 2, its
In, catastrophe failure refers to that occur in receiving end electrical network makes inversion current conversion station and alternating current net junction positive sequence voltage specified less than 0.6 times
The fault of voltage；
Step 2, rectification current conversion station phase shift to inverter mode, regulation rectification side thyristor valves Trigger Angle is more than 90 degree of fortune
OK；
Step 3, inversion current conversion station voltage source converter trigger the straight-through operation of the single-phase valve in three-phase valve, and locking is another simultaneously
Outer biphase valve.
Preferably, in step 1, inversion current conversion station utilizes the three-phase alternating voltage U with AC network junctionA、UB、UCCalculate
Go out UposIf met: Upos≤Uref1, then judge AC network generation catastrophe failure, and by interior communication system to rectification
Side control system sends request phase shift signal；
Wherein, UposFor the positive sequence voltage tried to achieve by three-phase alternating voltage, Uref1For the threshold value set.
Preferably, Uref1For the floating threshold being directly proportional to DC current before fault, below equation is used to be set:
Uref1=k*Idcpu*UN
Wherein, IdcpuFor DC current perunit value before fault, UNFor the rated voltage of Inverter Station Yu AC network junction, k
For proportionality coefficient, can value be typically 0.3～0.6.
Meanwhile, in step 1, converting plant utilizes DC current and the voltage of our station, it is judged that whether receiving end AC network occurs
Catastrophe failure, when meeting following formula, then judges that catastrophe failure occurs in inverse receiving end AC network:
Wherein, UdcRFor rectification current conversion station DC voltage, IdcRFor rectification current conversion station DC current,For DC current
Rate of change,For DC voltage change rate, L is DC line inductance, and R is DC line resistance, UdcrefFor set
Overpressure door threshold value.UdcrefValue is 1.1～1.3 times of DC rated voltage.
In step 1, the detection method of inversion current conversion station depends between the station between rectification current conversion station and inversion current conversion station logical
Communication system, the detection method of rectification current conversion station does not relies on interior communication system.Any one detection method detects that receiving end is handed over
Stream electric network fault then enters step 2, i.e. rectification current conversion station and have received the request phase shift signal of inversion current conversion station, or utilizes our station
DC voltage and current detecting gone out receiving end electrical network catastrophe failure, then enter step 2.
In step 2, rectification current conversion station regulation rectification side thyristor valves Trigger Angle is more than 90 degree of operations, the most desirable
120 degree～164 degree operations.Phase shift run signal is sent to inversion current conversion station after rectification current conversion station phase shift.
After inversion current conversion station judges receiving end AC network generation catastrophe failure, receive the fortune of phase shift of rectification current conversion station
Row signal, or when the rate of change of DC currentSpeedup is stood erectly flow electric current I more than or equal to setting value, the inversion change of currentdcIDefinitely
Value is decreased to 0 and IdcITime reversely, then enter step 3.
In step 3, inversion current conversion station voltage source converter triggers the straight-through operation of the arbitrary single-phase valve in three-phase valve, simultaneously
The other biphase valve of locking.
After inversion current conversion station detects that receiving end AC network fault is removed, cancel the straight-through operation of the single-phase valve of triggering, inverse
Transform stream station and rectification current conversion station recover the method for operation before fault.Inversion current conversion station utilizes the three-phase with AC network junction
Alternating voltage UA、UB、UCCalculate positive sequence voltage Upos, work as Upos≥Uref2Time, it is judged that receiving end AC network fault is removed, its
In, Uref2For the threshold value set, Uref2Take 0.7～0.95 times of AC network rated voltage.
Preferably, after inversion current conversion station detection fault is removed, before inversion current conversion station and rectification current conversion station recover fault
The method of operation: inversion current conversion station first recovers, i.e. cancels the straight-through operation of the single-phase valve of triggering, recovers three-phase and unlock, and to the rectification change of current
Transmission of standing has recovered three-phase and has unlocked run signal；Rectification current conversion station receives the three-phase of the recovery unblock fortune that inversion current conversion station sends
Row signal, or detect that DC voltage has recovered more than 0.5 times to rated voltage, return to the rectifier system before fault the most tactile
Send out angle less than 90 degree of operations.
Inversion current conversion station and rectification current conversion station regulation DC voltage and DC current are to the running status before fault afterwards.
The invention has the beneficial effects as follows: the invention provides at a kind of mixed type DC transmission system receiving end AC fault
Reason method, wherein, no matter converting plant is the most normal with Inverter Station communication, and the method can ensure mixed type DC transmission system
Reliably and securely pass through the catastrophe failure of inverter side AC network, limit the overvoltage of voltage source converter internal capacitance and straight
Stream side overvoltage, after AC network fault clearance, mixed type DC transmission system can quickly, smoothly resume operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention a kind of mixed type DC transmission system；
Fig. 2 is 12 pulsation bridge-type thyristor converter device structures and becomes connection diagram with the change of current；
Fig. 3 is MMC type voltage source converter structural representation；
Fig. 4 is full-bridge sub modular structure schematic diagram；
Fig. 5 is class full-bridge sub modular structure schematic diagram；
Fig. 6 is mixed type DC transmission system inverter side fault in ac transmission system handling process schematic diagram.
Detailed description of the invention
With specific embodiment, technical solution of the present invention is described in further detail below in conjunction with the accompanying drawings, so that ability
The technical staff in territory can be better understood from the present invention and can be practiced, but illustrated embodiment is not as the limit to the present invention
Fixed.
As it is shown in figure 1, mixed type DC transmission system include the rectification current conversion station that is connected with sending end AC network and with
The inversion current conversion station that receiving end AC network connects, rectification current conversion station is connected with inversion current conversion station through DC power transmission line.Rectification is changed
Stream station includes converter power transformer, convertor unit and smoothing reactor, and convertor unit is by converter power transformer and sending end alternating current
Net connects；Inversion current conversion station includes converter power transformer, convertor unit and smoothing reactor, convertor unit converter power transformer be subject to
End AC network connects.Wherein, UdcR、IdcRFor rectification current conversion station DC voltage and DC current, UdcI、IdcIFor inversion current conversion station
DC voltage and DC current, UA、UB、UCBy the three-phase alternating voltage of the AC network that inversion current conversion station is connected, L, R are
The inductance of DC line and resistance.
The converter power transformer of rectification current conversion station be a mode of connection be Y0The three-winding transformer of/Y/ Δ or connect by two
Line mode is respectively Y0/ Δ and Y0The two-winding transformer of/Y is constituted；The converter power transformer of inversion current conversion station is a mode of connection
For Y0The two-winding transformer of/Δ.Converter power transformer is for carrying out electric pressure change by the three-phase alternating current that AC system provides
Change, bear DC offset voltage, and play the effect of isolated DC bias voltage entrance AC network.
As in figure 2 it is shown, the convertor unit of rectification current conversion station can use 12 pulsation bridge-type thyristor converter devices, it is used for will
The three-phase alternating current of sending end AC network is converted to unidirectional current, and by DC power transmission line, this unidirectional current is delivered to inverse transformation
Stream station, each of which brachium pontis multiple IGCTs of series connection.
As it is shown on figure 3, the convertor unit of inversion current conversion station can use MMC (modularization multi-level converter), it uses
Three-phase six bridge arm structure, each brachium pontis is constituted by N number of sub module cascade and is serially connected with a brachium pontis reactor, and N is more than 0
Natural number, submodule is not limited to use a certain topological structure, can use the son of one or more different topology structures
Module-cascade is constituted.Fig. 4～Fig. 5 lists two kinds of common submodule topological structure, and the present invention's is concrete the most for convenience of description
Embodiment, the submodule kind in Fig. 3 is not limited to both structures.
As shown in Figure 4, full-bridge submodule is by four IGBT pipe T1～T4, four diode D1～D4, electric capacity C1 and resistance
R1 is constituted, and the base stage of four IGBT pipe T1～T4 all receives the control signal that external equipment provides.Full-bridge submodule has (just) to throw
Entering, bear input, straight-through, four kinds of running statuses of locking, the most corresponding T1, T4 turn on T2, T3 shutoff, and T1, T4 turn off T2, T3 and lead
Logical, T1, T3 conducting T2, T4 turn off or T1, T3 turn off T2, T4 conducting, T1～T4 is both off.
As it is shown in figure 5, class full-bridge submodule compares full-bridge submodule has lacked IGBT pipe T3.Class full-bridge submodule have input,
Straight-through, three kinds of running statuses of locking, the most corresponding T1, T4 conducting T2 turns off, and T1 turns off T2, T4 conducting, and T1, T2, T4 are both off.
Rectification current conversion station uses constant DC current control, and inversion current conversion station uses constant DC voltage control and determines reactive power
Control.During steady-state operation, DC current and DC voltage are controlled by rectification current conversion station and inversion current conversion station respectively.Rectification current conversion station
And be provided with between inversion current conversion station interior communication system realize two station between signal exchange.
As shown in Figure 6, a kind of mixed type DC transmission system receiving end AC fault handling method, comprise the steps:
Whether step 1, detection receiving end AC network there is catastrophe failure, if there is catastrophe failure, enter step 2, its
In, catastrophe failure refers to that occur in receiving end electrical network makes inversion current conversion station and alternating current net junction positive sequence voltage specified less than 0.6 times
The fault of voltage；
Step 2, rectification current conversion station phase shift to inverter mode, regulation rectification side thyristor valves Trigger Angle is more than 90 degree of fortune
OK；
Step 3, inversion current conversion station voltage source converter trigger the straight-through operation of the single-phase valve in three-phase valve, and locking is another simultaneously
Outer biphase valve.
After inversion current conversion station detection fault is removed, cancel the straight-through operation of the single-phase valve of triggering, inversion current conversion station and rectification
Current conversion station recovers the method for operation before fault.
Below each step is described in detail:
In step 1, inversion change of current station control system utilizes the three-phase alternating voltage U with AC network junctionA、UB、UCMeter
Calculate UposIf met: Upos≤Uref1, then judge AC network generation AC fault, and send to rectification side control system
Request phase shift signal；Wherein, UposFor the positive sequence voltage tried to achieve by three-phase alternating voltage, Uref1For set threshold value, by as follows
Formula sets:
Uref1=k*Idcpu*UN
Wherein, IdcpuFor DC current perunit value before fault, UNFor the rated voltage of Inverter Station Yu AC network junction, k
For proportionality coefficient, can value be typically 0.3～0.6, such as k value be 0.5.
Rectification current conversion station control system receives the request phase shift signal of inverse control system, and regulation rectification side is brilliant the most immediately
Brake tube converter valve Trigger Angle is more than 90 degree of operations, the most desirable 120 degree～164 degree, has sent to inverter side control system simultaneously
Phase shift run signal.
When rectification current conversion station control system and inversion change of current station control system communication failure, rectification current conversion station control system
The request phase shift signal of inversion current conversion station cannot be received, or, when two station communication time delays are excessive, rectification current conversion station control system is received
During to the request phase shift signal of inversion current conversion station, the inversion change of current is stood erectly and is flow through voltage and jeopardized equipment safety.For avoiding this
Two kinds of situations, in step 1, utilize the DC current I of rectification current conversion stationdcRAnd DC voltage UdcR, it is judged that inversion current conversion station side
Whether AC network there is catastrophe failure, when meeting following formula, then judges that catastrophe failure occurs in inversion current conversion station side AC network:
Wherein, UdcRFor rectification current conversion station DC voltage, IdcRFor rectification current conversion station DC current,For DC current
Rate of change,For DC voltage change rate, L is DC line inductance, and R is DC line resistance, UdcrefFor set
Voltage threshold value, can between DC voltage rated value and DC side apparatus insulated over-voltage design value value, typically can be taken as
1.1～1.3 times of DC voltage rated value.
Above detection criteria once meets, and rectification side control system regulates rectification side thyristor valves Trigger Angle the most immediately
More than 90 degree of operations (such as 164 degree), send phase shift run signal to inverter side control system simultaneously.
Inversion change of current station control system receives the phase shift run signal of rectification current conversion station control system, or utilizes inverse
The direct current detection at change station goes out the phase shift of rectification current conversion station and runs, and triggers the straight-through operation locking simultaneously of the single-phase valve of MMC immediately another
Biphase valve.As it is shown on figure 3, can trigger in the by-pass operation state of A phase upper and lower bridge arm all submodules SM1～SMn, B phase and C phase
Lower brachium pontis all submodules locking running status.
Wherein, utilize the direct current detection of Inverter Station to go out the phase shift of rectification current conversion station and run, be to avoid at communication failure
Shi Wufa receives the phase shift run signal of rectification current conversion station control system, after its criterion is a certain moment, and the change of DC current
RateMore than setting value (taking 10 times of rated direct currents per second), IdcIAbsolute value is decreased to 0 and IdcIReversely.
Work as Upos≥Uref2Time, it is judged that inversion change of current station failure is removed, wherein, and Uref2For the threshold value set, typically may be used
Take 0.7～0.95 times of AC network rated voltage.Inverter control system detects that AC fault is removed, cancels triggering A
Phase valve is straight-through to be run, i.e. all submodules of A phase upper and lower bridge arm transfer locking running status to from by-pass operation state, enter extensive afterwards
Multiple logic.
Inverter Station solution locking-valve, and send, to rectification current conversion station control system, the signal that resumes operation；Rectification current conversion station controls system
System receives the signal that resumes operation of inversion change of current station control system, or detects that our station DC voltage recovers, and regulates IGCT
Trigger Angle is less than 90 degree of operations, enters normal rectifier operations.So far the operation before Inverter Station and converting plant recover fault
Mode: converting plant DC current controls, inversion current conversion station uses constant DC voltage control and determines Reactive Power Control.The control at two stations
Running status before system fading margin Hybrid HVDC system recovery fault processed.
The invention provides a kind of mixed type DC transmission system receiving end AC fault handling method, wherein, the most whole
Stream station is the most normal with Inverter Station communication, and it is inverse that the method can ensure that mixed type DC transmission system reliably and securely passes through
Become the catastrophe failure of side AC network, limit overvoltage and the DC side overvoltage of voltage source converter internal capacitance, in exchange
After electric network fault is removed, mixed type DC transmission system can quickly, smoothly resume operation.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description and accompanying drawing content are made convert, or it is relevant to be directly or indirectly used in other
Technical field, be the most in like manner included in the scope of patent protection of the present invention.
Claims (8)
1. a mixed type DC transmission system receiving end AC fault handling method, it is characterised in that comprise the steps:
Whether step 1, detection receiving end AC network there is catastrophe failure, if there is catastrophe failure, enter step 2, wherein, sternly
Weight fault refers to that occur in receiving end electrical network makes inversion current conversion station and alternating current net junction positive sequence voltage less than 0.6 times of rated voltage
Fault；
Step 2, rectification current conversion station phase shift are to inverter mode, i.e. regulation rectification side thyristor valves Trigger Angle is more than 90 degree of fortune
OK；
Step 3, inversion current conversion station voltage source converter trigger the straight-through operation of the single-phase valve in three-phase valve, locking simultaneously other two
Phase valve.
A kind of mixed type DC transmission system receiving end AC fault handling method the most according to claim 1, its feature
It is, after inversion current conversion station detection fault is removed, cancels the straight-through operation of the single-phase valve of triggering, inversion current conversion station and the rectification change of current
The method of operation before recovery fault of standing.
A kind of mixed type DC transmission system receiving end AC fault handling method the most according to claim 1, its feature
Being, in step 1, whether detection receiving end AC network occurs the method for catastrophe failure to be: inversion current conversion station utilizes and alternating current
The three-phase alternating voltage U of net junctionA、UB、UCCalculate positive sequence voltage UposIf met: Upos≤Uref1, then receiving end is judged
AC network generation catastrophe failure, and send request phase shift signal to rectification current conversion station；
Wherein, Uref1For the threshold value set, Uref1For the floating threshold being directly proportional to DC current before fault, use following public
Formula is set:
Uref1=k*Idcpu*UN
Wherein, IdcpuFor DC current perunit value before fault, UNFor the rated voltage of Inverter Station Yu AC network junction, k be than
Example coefficient, value is 0.3～0.6.
A kind of mixed type DC transmission system receiving end AC fault handling method the most according to claim 1, its feature
Being, in step 1, whether detection receiving end AC network occurs the method for catastrophe failure to be: rectification current conversion station utilizes the straight of our station
Stream electric current and voltage, it is judged that whether receiving end AC network occurs catastrophe failure, when meeting following formula, then judges receiving end AC network
Generation catastrophe failure:
Wherein, UdcRFor rectification current conversion station DC voltage, IdcRFor rectification current conversion station DC current,Change for DC current
Rate,For DC voltage change rate, L is DC line inductance, and R is DC line resistance, UdcrefFor the voltage set
Threshold value.
A kind of mixed type DC transmission system receiving end AC fault handling method the most according to claim 4, its feature
It is, UdcrefFor DC voltage rated value 1.1～1.3 times.
A kind of mixed type DC transmission system receiving end AC fault handling method the most according to claim 1, its feature
It is, after inversion current conversion station judges receiving end AC network generation catastrophe failure, when the rate of change of DC currentSpeedup
Stand erectly flow electric current I more than or equal to setting value, the inversion change of currentdcIAbsolute value is decreased to 0 and IdcITime reversely, then enter step 3.
A kind of mixed type DC transmission system receiving end AC fault handling method the most according to claim 1, its feature
It is, works as Upos≥Uref2Time, it is judged that inversion change of current station failure is removed, wherein, and Uref2For the threshold value set, UposIt it is basis
Inversion current conversion station and the three-phase alternating voltage U of AC network junctionA、UB、UCThe positive sequence voltage calculated；When inversion current conversion station
Detection fault enters after removing recovers logic.
A kind of mixed type DC transmission system receiving end AC fault handling method the most according to claim 7, its feature
It is, Uref2It it is 0.7～0.95 times of AC network rated voltage.
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| CN113241741A (en) * | 2021-05-14 | 2021-08-10 | 广东电网有限责任公司电力调度控制中心 | Direct-current line protection method, device and equipment for preventing false start of alternating-current fault |
| CN113629703A (en) * | 2021-07-28 | 2021-11-09 | 南方电网科学研究院有限责任公司 | Optimization method for fault recovery control of conventional direct current system |
| CN113629708A (en) * | 2021-09-01 | 2021-11-09 | 浙江大学 | Control method for restraining overvoltage of receiving-end converter under receiving-end power grid fault of hybrid direct-current transmission system |
| CN114094617A (en) * | 2021-11-24 | 2022-02-25 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Hybrid direct-current power transmission system and receiving-end alternating-current fault ride-through method thereof |
| CN115333098A (en) * | 2022-09-20 | 2022-11-11 | 中国南方电网有限责任公司超高压输电公司昆明局 | Method, device and equipment for sequential locking treatment of double valve banks of multi-terminal direct-current power transmission system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406499A (en) * | 2015-11-20 | 2016-03-16 | 南京南瑞继保电气有限公司 | Intelligent hybrid direct current power transmission system and fault handling method |
| CN105429164A (en) * | 2015-12-09 | 2016-03-23 | 许继电气股份有限公司 | Sending-end low voltage fault ride-through method for hybrid direct current power transmission system |
-
2016
- 2016-06-03 CN CN201610393632.8A patent/CN106058826B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406499A (en) * | 2015-11-20 | 2016-03-16 | 南京南瑞继保电气有限公司 | Intelligent hybrid direct current power transmission system and fault handling method |
| CN105429164A (en) * | 2015-12-09 | 2016-03-23 | 许继电气股份有限公司 | Sending-end low voltage fault ride-through method for hybrid direct current power transmission system |
Non-Patent Citations (1)
| Title |
|---|
| 郭春义等: "一种具有直流故障穿越能力的混合直流输电***", 《中国电机工程学报》 * |
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