CN110535151A - A method of promoting the end Power Network Transient Stability of the wind-powered electricity generation containing high proportion - Google Patents
A method of promoting the end Power Network Transient Stability of the wind-powered electricity generation containing high proportion Download PDFInfo
- Publication number
- CN110535151A CN110535151A CN201910895633.6A CN201910895633A CN110535151A CN 110535151 A CN110535151 A CN 110535151A CN 201910895633 A CN201910895633 A CN 201910895633A CN 110535151 A CN110535151 A CN 110535151A
- Authority
- CN
- China
- Prior art keywords
- branch
- energy storage
- energy
- follows
- transient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A method of the end of wind-powered electricity generation containing high proportion Power Network Transient Stability being promoted, steps are as follows: 1, determining the grid structure of system；2, according to the historical data in system, failure in setting system, and cut off before the deadline；Energy storage position determines, the maximum branch collection of phase angle difference around fault point is selected to install energy storage device, can bring maximum support to the transient stability of system using the quick ability that absorbs release of the energy storage to energy；The maximum position of the frequency of occurrences is system failure point；4, energy storage control strategy, energy storage control signal areAllow to quickly absorb or discharge the transient state energy in weak branch, maintains the stabilization of system.The present invention can be in the case where system rack structure determination; the on-position of energy storage is determined by transient energy method; the more targeted weak branch in system is protected, and then is played a supporting role to the transient stability of system, efficient can utilize energy storage device.
Description
Technical field
The present invention relates to wind power generation fields, and in particular to a kind of end Power Network Transient Stability for promoting the wind-powered electricity generation containing high proportion
The method of property.
Background technique
With the significantly development of wind-power electricity generation, high proportion wind power integration power grid has become set show in certain areas
It is real.Along with high proportion wind power integration power grid, the inertia of system is deteriorated, and certain challenge is brought to the transient stability of system,
Especially in the power grid of end, end Power grid structure is big, and load density is small, transmits and occludes with other area powers, this leads
It causes in the power grid of end, a high proportion of wind power integration can bring stern challenge to the transient stability of system.
The current transient stability that high proportion wind-powered electricity generation power grid is mainly promoted by following two categories method: first, utilize void
Quasi- rotary inertia technology allows blower to play a supporting role the transient stability of system, but in high proportion wind power system, needs
A large amount of energy storage is put into, every crew qiting energy storage enforcement difficulty is larger；Second, virtual plant is constructed, virtual plant can be with
Each power generation in association system, power unit, play an integrated effect, but in the power grid of end, grid structure is big, bear
Lotus is unevenly distributed, and virtual plant technology is temporarily perfect not enough, needs a large amount of signal detection system, using being restricted.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention proposes a kind of end power grid transient state for promoting the wind-powered electricity generation containing high proportion
The method of stability.Present invention determine that the weak branch collection in system, can be adjusted thin in real time with improved energy storage control strategy
The transient state energy of weak branch road, optimal supporting role is played to the transient stability of system, to promote the wind-powered electricity generation containing high proportion
End Power Network Transient Stability.
The technical solution of the invention is as follows: a method of the end of wind-powered electricity generation containing high proportion Power Network Transient Stability is promoted,
Steps are as follows:
1, determine that the grid structure of system, the grid structure include line parameter circuit value, installed capacity of wind-driven power, fire in rack
Power plant unit capacity and substation capacity；
2, according to the historical data in system, failure in setting system, and cut off before the deadline；
3, energy storage position determines
When system is under the premise of occurring large disturbances and grid structure and not changing, if the connection both ends branch k node i, j
Voltage phase angle be denoted as δ1、δ2, then the both ends phase angle difference of branch k is represented by σk=δi-δj,It is flat in failure for kth branch
Phase angle difference after weighing apparatus；
For any branch k in network, potential energy is indicated are as follows:
PkFor kth branch effective power flow,It is kth branch relative to the active tide under post-fault equilibrium state
Stream；
If phase angle difference of the branch k in failure removal is denoted asThe then gesture of the failure removal moment branch
EnergyIt indicates are as follows:
σ in transmission line of electricitykValue are as follows:
In formula, P is the active transimission power of the branch, and X is the reactance of the branch, and P is the idle transimission power of the branch,
R is the equivalent resistance of the branch, and in the end power grid of the wind-powered electricity generation containing high proportion, voltage class is high, and load distance is remote, power transmission line
Road is long, leads to the R < < X in route, R can be ignored, therefore σkSimplified formula are as follows:
From the above equation, we can see that σkIt is directly proportional to the transimission power of the branch road, the size of reactance value；Wherein line reactance value exists
Do not consider temperature, under weather condition, relationship proportional to the length of defeated route；
Thus it releases, VPEKWith the transimission power of kth item branch road, transmission range is proportional；It is a little sent out i.e. in system
When raw failure, around transimission power is big, transmission range is long branch can get most transient potential energies, by such transmission line of electricity
It is defined as the weak branch collection of system under the failure；With the gradually deterioration of transient stability, transient state energy will more and more
It concentrates on the weak branch collection of system, the amplitude of variation of the branch collection transient state energy excessively increases, i.e. local energy in network
Imbalance, finally will lead to system and be broken on the branch road, system loss of stability；
Therefore, select the maximum branch collection of phase angle difference around fault point that energy storage device is installed, using energy storage to the fast of energy
The ability that speed absorbs release can bring maximum support to the transient stability of system；
It is sampled in the historical data that the selection of system failure point can be run by system to determine, the historical data is
The fault point frequency of occurrences, the maximum position of the frequency of occurrences are system failure point；
4, energy storage control strategy
By formula 2) in kth Branch Potential Energy be converted into the derivative to the time are as follows:
Wherein, ωkIt (t) is branch phase angle difference σk(t) time-derivative；
Select the time conducting wire ω of weak branch collection angular frequency differencek(t) as the control signal of energy storage device, work as ωk(t)
The transient state energy in energy storage absorption system is controlled when being gradually increased, otherwise is released energy；
The transient potential energy of any branch k indicates in grid are as follows:
In formula: ωk(t) poor for the angular frequency of two end node of branch k；tkFor the time of integration upper limit；When for failure removal
It carves；Pk(t)、Indicate the function that trend changes over time；
The then transient potential energy of weak branch collection are as follows:
In formula: N is the circuitry number of i-th of weak branch collection.Since using energy storage, adjusting weak branch concentrates each simultaneously
Road, therefore bus variation is consistent in people having the same aspiration and interest area, therefore each branch both end voltage Vi, Vj and phase angle difference σ in same cut setkVariation one
It causes.Therefore the potential energy of set i can be indicated with the Branch Potential Energy of branch k are as follows:
Assuming that critical branch effective power flow deviation is after the system failureDefine weak branch collection angular frequency
Poor coefficient are as follows:
Energy storage controls signal
The beneficial effects of the present invention are: the present invention can pass through transient state energy in the case where system rack structure determination
Method determines the on-position of energy storage, and improves the control strategy of energy storage, the more targeted weak branch in system into
Row protection, and then play a supporting role to the transient stability of system, it is different from building energy-accumulating power station or every typhoon in systems
The phenomenon that machine configuration energy storage be easy to cause energy storage device to waste, the present invention efficient can utilize energy storage device.
Detailed description of the invention
Fig. 1 is the grid structure figure of the end power grid in the embodiment of the present invention under high proportion wind power integration；
Fig. 2 is the present invention not plus the system generator rotor angle of energy storage control strategy changes schematic diagram；
Fig. 3 is partial branch potential variation situation schematic diagram；
Fig. 4 is partial branch phase angle difference situation of change schematic diagram.
Fig. 5 is the system generator rotor angle variation schematic diagram of the present invention plus energy storage control strategy；
Fig. 6 is flow chart of the invention.
Specific embodiment
As shown in fig. 6, the specific steps of the present invention are as follows:
1, the end power grid under high proportion wind power integration is selected, 220kv grid structure is determined, as shown in Figure 1, wherein thermoelectricity
The total 1700MW of unit, the total 1633.5MW of Wind turbines, wind-powered electricity generation accounting be 49%, substation capacity 36MW, external contact line 7,
Power load distributing is uneven, meets the end of wind-powered electricity generation containing high proportion electrical network feature.
2, according to the historical data in system, failure in setting system, and cut off in the stipulated time, this example root
The failure factually occurred in border 220kv system chooses 220kv system come the fault point being arranged in emulation and fault type, the application
In the relatively common and biggish three-phase shortcircuit of harmfulness analyzed.Mute time advises according to safe operation in 220kv system
Fixed relay protection actuation time determines that the application selects 0.12s to cut off failure.Obtain simulation result such as Fig. 2.
Because of a large amount of wind power integration and end system load in system, with closing for other area powers transmission
The reason of the characteristics of plug, can analyze and learn, system transient modelling unstability be when large disturbances occur for system, wind-powered electricity generation and interconnection all without
Method plays a supporting role to system, only can not quickly absorb large disturbances bring transient potential energy by the thermal power plant in system.Storage
The flexible apparatus to release energy can be quickly absorbed as one kind, can be very good to adjust disturbance bring transient potential energy.This
Application has determined the on-position of energy storage according to the characteristics of end of wind-powered electricity generation containing high proportion power grid first, and then improves the control of energy storage
System strategy, can play preferably supporting role to the transient stability of system.
3, the weak branch for determining system installs energy storage device on weak branch road (energy storage position determines)
When system is under the premise of occurring large disturbances and grid structure and not changing, if the connection both ends branch k node i, j
Voltage phase angle be denoted as δ1、δ2, then the both ends phase angle difference of branch k is represented by σk=δi-δj,It is flat in failure for kth branch
Phase angle difference after weighing apparatus, PkFor kth branch effective power flow,It is kth branch relative to having under post-fault equilibrium state
Function trend.
For any branch k in network, potential energy is indicated are as follows:
If phase angle difference of the branch k in failure removal is denoted asThe then gesture of the failure removal moment branch
EnergyTo indicate are as follows:
Partial branch potential variation situation, as shown in Figure 3.The both ends phase angle difference σ of branch k in transmission line of electricitykAre as follows:
In formula, P is the active transimission power of the branch, and Q is the idle transimission power of the branch；X is the reactance of the branch,
R is the equivalent resistance of the branch, and in the end power grid of the wind-powered electricity generation containing high proportion, voltage class is high, and load distance is remote, power transmission line
Road is long, leads to the R < < X in route, R can be ignored, therefore σkSimplified formula are as follows:
From the above equation, we can see that σkIt is directly proportional to the transimission power of the branch road, the size of reactance value.Wherein line reactance value exists
Do not consider temperature, under the conditions of weather etc., relationship proportional to the length of defeated route；Partial branch phase angle difference situation of change such as Fig. 4
It is shown.
Thus it releases, VPEKWith the transimission power of kth item branch road, transmission range is proportional.It is a little sent out i.e. in system
When raw failure, around transimission power is big, transmission range is long branch can get most transient potential energies, by such transmission line of electricity
It is defined as the weak branch collection of system under the failure；With the gradually deterioration of transient stability, transient state energy will more and more
It concentrates on the weak branch collection of system, the amplitude of variation of the branch collection transient state energy excessively increases, i.e. local energy in network
Imbalance, finally will lead to system and be broken on the branch road, system loss of stability；
Therefore, σ around fault point is selectedkEnergy storage device is added in maximum branch collection, using energy storage device to the fast of energy
The ability that speed absorbs release can bring maximum support to the transient stability of system.The selection of system failure point can lead to
It crosses in the historical data of system operation and samples to determine；
4, it determines energy storage control strategy, allows to quickly absorb or discharge the transient state energy in weak branch, maintain
The stabilization of system
The derivative to the time is converted by kth Branch Potential Energy in formula (2) are as follows:
Wherein, ωkIt (t) is branch phase angle difference σk(t) time-derivative.
If being controlled using energy storage branch transient potential energy, needs to control signal to energy storage and choose.And branch is temporary
Situation can be the integral function of branch operating parameter, can not be directly as the control signal of energy storage.By appeal analysis it is found that control
The phase angle difference of weak branch can controlling brancher transient potential energy, and weak branch phase angle difference σkIt (t) is weak branch collection angular frequency
Poor ωk(t) integral function.Therefore, weak branch collection angular frequency difference ω is selectedk(t) as the control signal of energy storage, work as ωk
(t) transient state energy in energy storage absorption system is controlled when being gradually increased, otherwise is released energy；
The transient potential energy of any branch k indicates in grid are as follows:
In formula: ωk(t) poor for the angular frequency of two end node of branch k；tkFor the time of integration upper limit；When for failure removal
It carves；
The then transient potential energy of weak branch collection are as follows:
In formula: N is the circuitry number of i-th of weak branch collection.Since using energy storage, adjusting weak branch concentrates each simultaneously
Road, therefore bus variation is consistent in people having the same aspiration and interest area, therefore each branch both end voltage Vi, Vj and phase angle difference σ in same cut setkVariation one
It causes.Therefore the potential energy of set i can be indicated with the Branch Potential Energy of branch k are as follows:
Assuming that critical branch effective power flow deviation is after the system failureDefine weak branch collection angular frequency
Poor coefficient are as follows:
Energy storage controls signal
Simulation result is as shown in Figure 5.
It can be seen that steady according to the end power grid transient state that the mentioned method of the application can effectively promote the wind-powered electricity generation containing high proportion
It is qualitative.
The above is only specific embodiments of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of method for promoting the end of wind-powered electricity generation containing high proportion Power Network Transient Stability, it is characterized in that steps are as follows:
1), determine that the grid structure of system, the grid structure include line parameter circuit value, installed capacity of wind-driven power, thermoelectricity in rack
Factory's installed capacity and substation capacity；
2), according to the historical data in system, failure in setting system, and cut off before the deadline；
3), energy storage position determines
When system is under the premise of occurring large disturbances and grid structure and not changing, if the connection both ends branch k node i, the electricity of j
Pressure phase angle is denoted as δ1、δ2, then the both ends phase angle difference of branch k is represented by σk=δi-δj,It is kth branch after failure balance
Phase angle difference；
For any branch k in network, potential energy is indicated are as follows:
PkFor kth branch effective power flow,It is kth branch relative to the effective power flow under post-fault equilibrium state；
If phase angle difference of the branch k in failure removal is denoted asThe then potential energy of the failure removal moment branchIt indicates are as follows:
σ in transmission line of electricitykValue are as follows:
In formula, P is the active transimission power of the branch, and X is the reactance of the branch, and P is the idle transimission power of the branch, and R is
The equivalent resistance of the branch, and in the end power grid of the wind-powered electricity generation containing high proportion, voltage class is high, and load distance is remote, transmission line of electricity
It is long, lead to the R < < X in route, R can be ignored, therefore σkSimplified formula are as follows:
From the above equation, we can see that σkIt is directly proportional to the transimission power of the branch road, the size of reactance value；Wherein line reactance value is not being examined
Consider temperature, under weather condition, relationship proportional to the length of defeated route；
Thus it releases, VPEKWith the transimission power of kth item branch road, transmission range is proportional；Event a little occurs i.e. in system
When barrier, around transimission power is big, transmission range is long branch can get most transient potential energies, such transmission line of electricity is defined
For the weak branch collection of system under the failure；With the gradually deterioration of transient stability, transient state energy will be concentrated more and more
In on the weak branch collection of system, the amplitude of variation of the branch collection transient state energy excessively increases, i.e., local energy is not in network
Balance, finally will lead to system and is broken on the branch road, system loss of stability；
Therefore, select the maximum branch collection of phase angle difference around fault point that energy storage device, the quick suction using energy storage to energy are installed
The ability for receiving release can bring maximum support to the transient stability of system；
It is sampled in the historical data that the selection of system failure point can be run by system to determine, the historical data is failure
The point frequency of occurrences, the maximum position of the frequency of occurrences is system failure point；
4), energy storage control strategy
By formula 2) in kth Branch Potential Energy be converted into the derivative to the time are as follows:
Wherein, ωkIt (t) is branch phase angle difference σk(t) time-derivative；
Select the time conducting wire ω of weak branch collection angular frequency differencek(t) as the control signal of energy storage device, work as ωk(t) gradually
The transient state energy in energy storage absorption system is controlled when increase, otherwise is released energy；
The transient potential energy of any branch k indicates in grid are as follows:
In formula: ωk(t) poor for the angular frequency of two end node of branch k；tkFor the time of integration upper limit；For the failure removal moment；Pk
(t)、Indicate the function that trend changes over time；
The then transient potential energy of weak branch collection are as follows:
In formula: N is the circuitry number of i-th of weak branch collection.Each branch is concentrated due to adjusting weak branch simultaneously using energy storage, because
Bus variation is consistent in this people having the same aspiration and interest area, therefore each branch both end voltage Vi, Vj and phase angle difference σ in same cut setkVariation is consistent.Cause
The potential energy of this set i can be indicated with the Branch Potential Energy of branch k are as follows:
Assuming that critical branch effective power flow deviation is after the system failureDefine weak branch collection angular frequency difference system
Number are as follows:
Energy storage controls signal
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910895633.6A CN110535151B (en) | 2019-09-21 | 2019-09-21 | Method for improving transient stability of tail-end power grid containing high-proportion wind power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910895633.6A CN110535151B (en) | 2019-09-21 | 2019-09-21 | Method for improving transient stability of tail-end power grid containing high-proportion wind power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110535151A true CN110535151A (en) | 2019-12-03 |
| CN110535151B CN110535151B (en) | 2022-11-01 |
Family
ID=68669531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910895633.6A Active CN110535151B (en) | 2019-09-21 | 2019-09-21 | Method for improving transient stability of tail-end power grid containing high-proportion wind power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110535151B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185325A (en) * | 2011-04-25 | 2011-09-14 | 东北电力大学 | Method for quantitatively evaluating transient stability of electric power system based on network measuring information |
| CN104732083A (en) * | 2015-03-23 | 2015-06-24 | 东北电力大学 | Load transient energy function construction and evaluation method based on branch potential energy |
| CN105259471A (en) * | 2015-10-14 | 2016-01-20 | 上海电力学院 | Three-dimensional fault line selection method based on random resonance and transient current signal |
| WO2018006499A1 (en) * | 2016-07-06 | 2018-01-11 | 南方电网科学研究院有限责任公司 | Dominant instability mode identification method and system for power system |
| CN107742892A (en) * | 2017-10-30 | 2018-02-27 | 国家电网公司 | A kind of energy storage damping control method for suppressing the vibration of New-energy power system broadband |
| CN108599230A (en) * | 2018-01-09 | 2018-09-28 | 天津大学 | A method of joint crowbar circuit improves power system transient stability with energy storage device |
| CN109638810A (en) * | 2018-11-02 | 2019-04-16 | 中国电力科学研究院有限公司 | A kind of energy storage method and system for planning based on electric power system transient stability |
-
2019
- 2019-09-21 CN CN201910895633.6A patent/CN110535151B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185325A (en) * | 2011-04-25 | 2011-09-14 | 东北电力大学 | Method for quantitatively evaluating transient stability of electric power system based on network measuring information |
| CN104732083A (en) * | 2015-03-23 | 2015-06-24 | 东北电力大学 | Load transient energy function construction and evaluation method based on branch potential energy |
| CN105259471A (en) * | 2015-10-14 | 2016-01-20 | 上海电力学院 | Three-dimensional fault line selection method based on random resonance and transient current signal |
| WO2018006499A1 (en) * | 2016-07-06 | 2018-01-11 | 南方电网科学研究院有限责任公司 | Dominant instability mode identification method and system for power system |
| CN107742892A (en) * | 2017-10-30 | 2018-02-27 | 国家电网公司 | A kind of energy storage damping control method for suppressing the vibration of New-energy power system broadband |
| CN108599230A (en) * | 2018-01-09 | 2018-09-28 | 天津大学 | A method of joint crowbar circuit improves power system transient stability with energy storage device |
| CN109638810A (en) * | 2018-11-02 | 2019-04-16 | 中国电力科学研究院有限公司 | A kind of energy storage method and system for planning based on electric power system transient stability |
Non-Patent Citations (2)
| Title |
|---|
| 孟祥侠等: "基于网络结构的暂态势能分布机理分析", 《电力系统自动化》 * |
| 李朋等: "基于暂态势能控制的储能提高暂态稳定性研究", 《电力系统及其自动化学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110535151B (en) | 2022-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Varma et al. | Mitigation of fault induced delayed voltage recovery (FIDVR) by PV-STATCOM | |
| CN102799722B (en) | A kind of wind power plant low voltage ride-through capability emulation verification method | |
| CN106611965B (en) | Wind power plant coordination control method and system for preventing large-scale wind power from frequently crossing | |
| CN106230024B (en) | The electric system power failure Risk Calculation method of the field containing double-fed fan motor | |
| CN103138259B (en) | Safety and stability analysis method for access of intermittent large-scale wind power to grid | |
| CN103730882A (en) | Current protection system and method for being automatically adapted to distributed power connection | |
| CN102510083B (en) | Integration protection method capable of reducing wind power field low-voltage crossing capacity requirement | |
| CN108539788A (en) | A kind of system and method improving double-fed fan trouble ride-through capability based on SFCL and SMES | |
| CN106356819A (en) | Method for protecting collection system line in large-scale photovoltaic power station | |
| Jenkins | Engineering wind farms | |
| CN104184169A (en) | Transient generator tripping control method considering wind power integration and wind-thermal coordination | |
| Duong et al. | The Impact of 150MWp PhoAn Solar Photovoltaic Project into Vietnamese QuangNgai-Grid | |
| CN104113086A (en) | Wind power-thermal power cutter strategy coordination optimization method | |
| Akhmatov et al. | Fixed‐speed active‐stall wind turbines in offshore applications | |
| CN105656061A (en) | Method for inhibiting subsynchronous oscillation caused by wind power and thermal power binding in direct-current power transmission | |
| CN110535151A (en) | A method of promoting the end Power Network Transient Stability of the wind-powered electricity generation containing high proportion | |
| CN103532520A (en) | Reactive power compensation device control method for preventing large-scale chain offline of wind generation sets | |
| CN202676812U (en) | Low voltage ride-through detection device of centralized wind power plant | |
| Xi et al. | Adaptive VSG control scheme for large scale wind farms to improve frequency response characteristics | |
| Falahzadeh et al. | Study of RSFCL effect to improve the behavior of DFIG during a fault | |
| Tian et al. | Active power and reactive power FRT coordinated control strategy of offshore wind farms connected to power grid with AC cables | |
| CN109617050A (en) | A kind of Service Power in Thermal Power Plant micro-grid system simulation model | |
| Chen et al. | Analysis of the Impact of MW-level Grid-connected Photovoltaic Power Station on Backup Automatic Switch in Distribution Network | |
| Zhang et al. | An adaptive relaying algorithm for the protection of distribution networks integrated with wind farms | |
| Davidson | Interaction of a wind farm with the distribution network and its effect on voltage quality |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |