CN110244577A - A kind of power grid surely controls emulation mode and system - Google Patents
A kind of power grid surely controls emulation mode and system Download PDFInfo
- Publication number
- CN110244577A CN110244577A CN201910483032.4A CN201910483032A CN110244577A CN 110244577 A CN110244577 A CN 110244577A CN 201910483032 A CN201910483032 A CN 201910483032A CN 110244577 A CN110244577 A CN 110244577A
- Authority
- CN
- China
- Prior art keywords
- failure
- power grid
- emulation mode
- stability control
- control system
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of power grids surely to control emulation mode and system, this method comprises: step 1 generates simulated failure by failure in conjunction with real time data；Step 2, searching and the matched security stability control system of simulated failure inquire the steady control measure of offline stability control strategy table anticipation security stability control system；Step 3, will calculate judge whether power grid is stable in data input DSA (Dynamic Security Analysis, dynamic security analysis) calculating instrument of real time data, simulated failure and steady control measure.Power grid surely controls simulation process and not only considers the process that failure early period occurs, also consider the action process of the steady control measure of security stability control system after failure occurs, simulation security stability control system cuts machine, cutting load process, so that simulation model more refines, simulation result is more accurate and reliable, so that power grid is surely controlled measure and has more reference significance.
Description
Technical field
The present invention relates to grid simulation technical fields, and in particular to a kind of power grid surely controls emulation mode and system.
Background technique
With constantly improve for system protection dispatching terminal, power grid is to the accuracy of electric system simulation operation and rapidity
It is required that being also continuously improved, safety on line analytical calculation is particularly important.It is actually research state that on-line analysis, which calculates, in real time
It analyzes current electric grid and runs existing risk and hidden danger, and is reliable auxiliary to the offer of trend section as defined in stable operation is unsatisfactory for
Decision is helped, it can also be in conjunction with off-line strategy table, the accuracy of authentication policy table.
Safety on line analysis needs to obtain real-time number from smart grid supporting system technology basic platform D5000
According in addition the measure collection of forecast failure collection and security stability control system, DSA can be carried out various stability Calculations and check, such as quiet
State safety analysis, transient security analysis, calculation of short-circuit current etc..And calculated as automatic, how more quick and precisely for
The development of dispatching automation all plays very big impetus.Power grid surely controls that simulation model is finer, and power grid surely controls simulation result
It is more accurate.
Summary of the invention
The present invention for the technical problems in the prior art, provides a kind of power grid and surely controls emulation mode and system.
The technical scheme to solve the above technical problems is that a kind of power grid surely controls emulation mode, comprising:
Step 1, by failure in conjunction with real time data, simulated failure is generated；
Step 2, searching and the matched security stability control system of the simulated failure are inquired described in offline stability control strategy table anticipation
The steady control measure of security stability control system；
Step 3, the data of the real time data, the simulated failure and the steady control measure are inputted into DSA calculating instrument
Middle calculating judges whether power grid is stable.
A kind of power grid surely controls analogue system, comprising: failure generates unit, steady control measure anticipation unit and stabilization of power grids judgement
Unit；
Failure generates unit, for failure in conjunction with real time data, to be generated simulated failure；
Steady control measure prejudges unit, and for searching and the matched security stability control system of the simulated failure, inquiry is offline steady
Control Policy Table prejudges the steady control measure of the security stability control system；
Stabilization of power grids judging unit, based on the data input DSA by the real time data, simulated failure and steady control measure
Calculate judge whether power grid is stable in calculation tool.
The beneficial effects of the present invention are: first prejudging the steady control measure of security stability control system after just failure generation, and will be real-time
It is calculated in the data input DSA calculating instrument of data, simulated failure and temperature control measures and judges whether to stablize, i.e., power grid surely controls emulation
Process not only considers the process that failure early period occurs, it is also considered that the movement of the steady control measure of security stability control system after failure occurs
Process, that simulates security stability control system cuts machine, cutting load process, so that simulation model more refines, simulation result is more quasi-
It is really reliable, so that power grid is surely controlled measure and has more reference significance.
Based on the above technical solution, the present invention can also be improved as follows.
Further, include: to obtain N-1 catastrophe failure collection before the step 1, the N-1 catastrophe failure collection is sieved
Choosing obtains N-2 catastrophe failure collection；
Failure in the step 1 is the failure that the N-2 catastrophe failure is concentrated.
The process for obtaining the N-2 catastrophe failure collection includes:
Step 01, fault set is generated, screening obtains the N-1 catastrophe failure collection from the fault set；
Step 02, the failure domain of influence according to the power flow transfer of element than judging the element；
Step 03, the element that the N-1 catastrophe failure is concentrated is traversed, according to the failure of the traversal element and other elements
The domain of influence judges whether the traversal element and the other elements add and concentrates into the N-2 catastrophe failure, described in generation
N-2 catastrophe failure collection.
In the step 01, the N-1 catastrophe failure collection is the weak spot for considering power grid under current real-time status, in conjunction with
DSA history calculates data and weather condition obtains.
In the step 02, the power flow transfer ratio of the element m are as follows:
Wherein, k indicates failure, and 0 indicates initial time,It is effective power flow of the element m after cut-offfing element n failure in advance
Value,Effective power flow value when not breaking down is carved at the beginning for element m,It is being cut-off in advance for the pre- element n that cut-offs
Preceding effective power flow value.
Judge whether the traversal element and the other elements add into the N-2 catastrophe failure in the step 03
Concentration includes:
Step 031, judge the other elements whether it is described traversal element the failure domain of influence in, it is no, execute
It step 032, is to execute step 034；
Step 032, judge whether the failure domain of influence of the other elements described in the traversal element has intersection, it is no,
Step 035 is executed, is, executes step 033；
Step 033, judge whether have in the intersection of the failure domain of influence of the traversal element and the other elements
Element overload is to execute step 034, no, executes step 035；
Step 034, the traversal element and other elements addition are entered the N-2 catastrophe failure to concentrate；
Step 035, judge that the failure of the traversal element influences to terminate the traversal element when domain analysis finishes
Deterministic process.
In the step 1 by failure and after combining real time data to generate simulated failure, after judging that the simulated failure is effective
Carry out the step 2.
The stable control is judged after inquiry and the matched security stability control system of the simulated failure in the step 2
Whether system puts into operation, and the offline stability control strategy table is inquired when putting into operation and is prejudged described in the security stability control system
Otherwise steady control measure terminates simulation flow.
The steady control measure in the step 2 includes cutting machine and/or cutting load.
Beneficial effect using above-mentioned further scheme is to reduce invalid power grid surely to control simulation process, accelerates emulation speed
Degree.
Detailed description of the invention
Fig. 1 provides a kind of power grid for the embodiment of the present invention and surely controls emulation mode flow chart；
Fig. 2 is the flow chart figure for the embodiment that a kind of power grid that invention provides surely controls emulation mode；
Fig. 3 is the acquisition methods flow chart that a kind of power grid provided by the invention surely controls fault set in emulation mode；
Fig. 4 is the structural block diagram for the embodiment that a kind of power grid provided by the invention surely controls analogue system；
Fig. 5 is the method flow diagram for the concrete application embodiment that a kind of power grid provided by the invention surely controls emulation mode.
In attached drawing, parts list represented by the reference numerals are as follows:
1, failure generates unit, 2, steady control measure anticipation unit, 3, stabilization of power grids judging unit.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
The embodiment of the present invention provides a kind of power grid and surely controls emulation mode, method flow diagram as shown in Figure 1, as shown in Figure 1,
This method comprises:
Step 1, by failure in conjunction with real time data, simulated failure is generated.
Step 2, searching and the matched security stability control system of simulated failure inquire offline stability control strategy table and prejudge stable control
The steady control measure of system.
Step 3, judgement electricity will be calculated in the data input DSA calculating instrument of real time data, simulated failure and steady control measure
Whether net is stable.
A kind of power grid provided in an embodiment of the present invention surely controls emulation mode, first prejudges security stability control system after just failure generation
Steady control measure, and the data of real time data, simulated failure and temperature control measures are inputted in DSA calculating instrument and calculates and judges whether
Stablize, i.e., power grid surely controls the process that simulation process not only considers the generation of failure early period, it is also considered that stable control after failure occurs
The action process of the steady control measure of system, that simulates security stability control system cuts machine, cutting load process, so that simulation model is more smart
Refinement, simulation result is more accurate and reliable, so that power grid is surely controlled measure and has more reference significance.
Embodiment 1
Embodiment 1 provided by the invention is the preferred embodiment that a kind of power grid provided by the invention surely controls emulation mode, such as
Fig. 2 show the flow chart that a kind of power grid provided by the invention surely controls the embodiment of emulation mode, as shown in Figure 2, this method packet
It includes:
Step 1, by failure in conjunction with real time data, simulated failure is generated.
Specifically, by failure and after combining real time data to generate simulated failure, after judging that the simulated failure effectively carries out afterwards
Continuous step.Must be in conjunction with real time data, under real-time rack by the failure after screening, subelement may stop transport maintenance, this
When the corresponding failure of the element should be determined as invalid failures, be not involved in subsequent judgement.
Invalid failure or the failure that security stability control system can not be made to put into enter the power grid and surely control emulation mode meeting directly
The binding beam simulation process, is unable to get simulation result, in order to guarantee the probability of security stability control system investment, reduces invalid electricity
The steady control simulation process of net, step 1 further includes before following steps:
N-1 catastrophe failure collection is obtained, is screened to obtain N-2 catastrophe failure collection to the N-1 catastrophe failure collection, in step 1
Failure be the N-2 catastrophe failure concentrate failure.
Specifically, being illustrated in figure 3 the acquisition methods that a kind of power grid provided by the invention surely controls fault set in emulation mode
Flow chart, from the figure 3, it may be seen that this method comprises:
Step 01, fault set is generated, screening obtains N-1 catastrophe failure collection from the fault set.
During obtaining the N-1 catastrophe failure collection, the weak spot of power grid under current real-time status is considered, and combine DSA
History calculates data and weather condition, obtains N-1 catastrophe failure comprehensively and targetedly.
Step 02, the failure domain of influence according to the power flow transfer of element than judging the element.
Specifically, the power flow transfer ratio of element m are as follows:
Wherein, k indicates failure, and it is effective power flow value of the element m after cut-offfing element n failure in advance that 0, which indicates initial time,
Effective power flow value when not breaking down is carved at the beginning for element m, for the pre- active tide for cut-offfing element n before cut-offfing in advance
Flow valuve.
Step 03, the element that traversal N-1 catastrophe failure is concentrated, according to the failure domain of influence of the traversal element and other elements
Judge whether the traversal element and other elements add to concentrate into N-2 catastrophe failure, generates N-2 catastrophe failure collection.
Specifically, judging the traversal element according to the failure domain of influence of the traversal element and other elements and other elements are
No addition enters the process that N-2 catastrophe failure is concentrated
Step 031, judge the other elements whether in the failure domain of influence of the traversal element, it is no, execute step 032,
It is to execute step 034.
Step 032, judge whether the traversal element and the failure domain of influence of the other elements have intersection, it is no, execute step
033, it is to execute step 034.
Step 033, judge whether there is element overload in the intersection of the traversal element and the failure domain of influence of the other elements,
It is to execute step 034, it is no, execute step 035.
Step 034, the traversal element and other elements addition are entered N-2 catastrophe failure to concentrate.
Step 035, judge that the failure of the traversal element influences the deterministic process for terminating the traversal element when domain analysis finishes.
By above-mentioned steps 031-035 it is found that judging whether traverse element and other elements adds into N-2 catastrophe failure collection
During, meet other elements whether in the failure domain of influence of the traversal element or traversal element and the other elements
When thering is element to overload the either condition in two conditions in the intersection of the failure domain of influence will the traversal element and other elements add
It adds and is concentrated into N-2 catastrophe failure.
Step 2, inquiry and the matched security stability control system of simulated failure inquire offline stability control strategy table and prejudge stable control
The steady control measure of system.
Specifically, judging whether the security stability control system puts into fortune after inquiry and the matched security stability control system of simulated failure
Otherwise row, the steady control measure that offline stability control strategy table anticipation security stability control system is inquired when putting into operation terminate the emulation stream
Journey.
After inquiring the steady control measure of offline stability control strategy table anticipation security stability control system, judge whether to meet the steady control measure
Prerequisite, the anticipation of steady control measure is carried out when meeting.
According to the section tidal current size of power grid under real time data, load level, generator output determines the fortune of current electric grid
Line mode, and read Policy Table of the stable subsystem under the current method of operation, wherein steady control measure includes specifically cutting machine
And/or cutting load, but do not write on Policy Table and which platform unit specifically cut, it is prejudged, is illustrated in figure 2 and gives difference
In the case of surely control measure anticipation rule embodiment.
Step 3, it will judge that power grid is in the data input DSA calculating instrument of real time data, simulated failure and steady control measure
No stabilization.
In specific implementation, the data of the steady control measure of real time data, simulated failure and anticipation are inputted into DSA calculating instrument
In, as the result is shown when the stabilization of power grids, steady control measure can be reduced and cut machine and/or cutting load amount or do not cut machine and/or cut negative
Lotus, then the judgement of the stabilization of power grids is carried out, if cutting machine and/or cutting load amount to steady control measure reduction or not cutting machine and/or cut
It is still stable when load, then it can be without cutting machine and/or cutting load operation.
Embodiment 2
Embodiment 2 provided by the invention is the embodiment that a kind of power grid provided by the invention surely controls analogue system, such as Fig. 4 institute
It is shown as the structural block diagram that a kind of power grid provided by the invention surely controls the embodiment of analogue system, as shown in Figure 4, which surely controls imitative
True system includes: that failure generates unit 1, steady control measure anticipation unit 2 and stabilization of power grids judging unit 3.
Failure generates unit 1, for failure in conjunction with real time data, to be generated simulated failure.
Steady control measure anticipation unit 2, is used for searching and the matched security stability control system of simulated failure, inquires and surely control plan offline
The steady control measure of sketch form anticipation security stability control system.
Stabilization of power grids judging unit 3, for calculating the data input DSA of real time data, simulated failure and steady control measure
Calculate judge whether power grid is stable in tool.
Embodiment 3
Embodiment 3 provided by the invention is the concrete application implementation that a kind of power grid provided by the invention surely controls emulation mode
Example, is illustrated in figure 5 the method flow diagram that a kind of power grid provided by the invention surely controls the concrete application embodiment of emulation mode, by
Fig. 5 is it is found that in the concrete application embodiment, comprising:
Judge that power grid prefecture Chu's line generates failure.
Belong to Central China according to prefecture Chu line, finding with the matched security stability control system of simulated failure is Central China-lake
North-south prefecture security stability control system.
Offline stability control strategy table is inquired, according to Nanjing district maximum unit power output range in 360-500MW, determines stable control system
The steady control measure of system is to cut a unit, after judging that Nanjing district #1 unit output is greater than #2 unit output, prejudges stable control system
The steady control measure of system is to cut #1 unit.
The stabilization of power grids is judged by calculating in the data input DSA calculating instrument of real time data, simulated failure and steady control measure
Afterwards, it is adjusted to steady control measure not cut machine, enters data into calculating in DSA calculating instrument again and judge that power grid is still stable, because
This determines that under current real-time mode, the failure does not need to cut machine after occurring.
By above-mentioned Application Example it is found that a kind of power grid provided by the invention surely controls emulation mode, stable control system is simulated
System cuts the stable case that power grid is judged after machine, cutting load process, so that simulation model more refines, simulation result is more quasi-
It is really reliable, and the stable judgement of power grid can be carried out again after the steady control movement for reducing security stability control system, it determines most suitable
Steady control movement, makes power grid surely control measure and has more reference significance.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of power grid surely controls emulation mode, which is characterized in that the emulation mode includes:
Step 1, by failure in conjunction with real time data, simulated failure is generated；
Step 2, it is described stable to inquire offline stability control strategy table anticipation for searching and the matched security stability control system of the simulated failure
The steady control measure of control system；
Step 3, the data input DSA calculating instrument of the real time data, the simulated failure and the steady control measure is fallen into a trap
It calculates and judges whether power grid is stable.
2. emulation mode according to claim 1, which is characterized in that include: to obtain N-1 seriously event before the step 1
Barrier collection, screens the N-1 catastrophe failure collection to obtain N-2 catastrophe failure collection；
The failure in the step 1 is the failure that the N-2 catastrophe failure is concentrated.
3. emulation mode according to claim 2, which is characterized in that the process for obtaining the N-2 catastrophe failure collection includes:
Step 01, fault set is generated, screening obtains the N-1 catastrophe failure collection from the fault set；
Step 02, the failure domain of influence according to the power flow transfer of element than judging the element；
Step 03, the element that the N-1 catastrophe failure is concentrated is traversed, is sentenced according to the failure domain of influence of traversal element and other elements
Break the traversal element and whether the other elements added and concentrated into the N-2 catastrophe failure, generate the N-2 seriously therefore
Barrier collection.
4. emulation mode according to claim 3, which is characterized in that in the step 01, the N-1 catastrophe failure collection is
The weak spot for considering power grid under current real-time status calculates data in conjunction with DSA history and weather condition obtains.
5. emulation mode according to claim 3, which is characterized in that in the step 02, the power flow transfer ratio of element m
Are as follows:
Wherein, k indicates failure, and 0 indicates initial time,It is that element m is cut-offfing element n failure in advance
Effective power flow value afterwards,Effective power flow value when not breaking down is carved at the beginning for element m,It pre- is cut-off to be described
Effective power flow value of the element n before cut-offfing in advance.
6. emulation mode according to claim 3, which is characterized in that judge the traversal element and institute in the step 03
It states other elements and whether adds into N-2 catastrophe failure concentration and include:
Step 031, judge the other elements whether it is described traversal element the failure domain of influence in, it is no, execute step
032, it is to execute step 034；
Step 032, judge whether the failure domain of influence of the other elements described in the traversal element has intersection, it is no, it executes
It step 035, is to execute step 033；
Step 033, judge whether there is element in the intersection of the failure domain of influence of the traversal element and the other elements
Overload is to execute step 034, no, executes step 035；
Step 034, the traversal element and other elements addition are entered the N-2 catastrophe failure to concentrate；
Step 035, judge that the failure of the traversal element influences the judgement for terminating the traversal element when domain analysis finishes
Process.
7. emulation mode according to claim 1, which is characterized in that by failure and in conjunction with real time data in the step 1
After generating simulated failure, judge that the simulated failure effectively carries out the step 2 afterwards.
8. emulation mode according to claim 1, which is characterized in that inquiry and the simulated failure in the step 2
Judge whether the security stability control system puts into operation after the security stability control system matched, inquired when putting into operation it is described from
Line stability control strategy table prejudges the steady control measure of the security stability control system, otherwise, terminates simulation flow.
9. emulation mode according to claim 1, which is characterized in that the steady control measure in the step 2 includes cutting
Machine and/or cutting load.
10. a kind of power grid surely controls analogue system, which is characterized in that the system comprises: failure generates unit, steady control measure anticipation
Unit and stabilization of power grids judging unit；
Failure generates unit, for failure in conjunction with real time data, to be generated simulated failure；
Steady control measure anticipation unit, is used for searching and the matched security stability control system of the simulated failure, inquires and surely control plan offline
Sketch form prejudges the steady control measure of the security stability control system；
Stabilization of power grids judging unit, for the data input DSA of the real time data, simulated failure and steady control measure to be calculated work
Calculate judge whether power grid is stable in tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483032.4A CN110244577A (en) | 2019-06-04 | 2019-06-04 | A kind of power grid surely controls emulation mode and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483032.4A CN110244577A (en) | 2019-06-04 | 2019-06-04 | A kind of power grid surely controls emulation mode and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110244577A true CN110244577A (en) | 2019-09-17 |
Family
ID=67885933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910483032.4A Pending CN110244577A (en) | 2019-06-04 | 2019-06-04 | A kind of power grid surely controls emulation mode and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110244577A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541243A (en) * | 2020-04-27 | 2020-08-14 | 海南电网有限责任公司 | Real-time simulation modeling method for testing regional safety and stability control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618307A (en) * | 2013-11-08 | 2014-03-05 | 天津大学 | Emergency control method for improving safe stability of power system |
| CN108389002A (en) * | 2018-03-13 | 2018-08-10 | 国电南瑞科技股份有限公司 | A kind of multiple failure generation method based on N-1 catastrophe failure collection |
| US20190129367A1 (en) * | 2017-10-26 | 2019-05-02 | General Electric Company | Power system model parameter conditioning tool |
-
2019
- 2019-06-04 CN CN201910483032.4A patent/CN110244577A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618307A (en) * | 2013-11-08 | 2014-03-05 | 天津大学 | Emergency control method for improving safe stability of power system |
| US20190129367A1 (en) * | 2017-10-26 | 2019-05-02 | General Electric Company | Power system model parameter conditioning tool |
| CN108389002A (en) * | 2018-03-13 | 2018-08-10 | 国电南瑞科技股份有限公司 | A kind of multiple failure generation method based on N-1 catastrophe failure collection |
Non-Patent Citations (2)
| Title |
|---|
| 任伟 等: "基于修正能量函数的广东电网最佳稳措控制算法", 《天津大学学报》 * |
| 郭力 等: "基于DSA/PMU的多重复合故障仿真分析", 《电气应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541243A (en) * | 2020-04-27 | 2020-08-14 | 海南电网有限责任公司 | Real-time simulation modeling method for testing regional safety and stability control system |
| CN111541243B (en) * | 2020-04-27 | 2023-09-19 | 海南电网有限责任公司 | Real-time simulation modeling method for testing regional safety and stability control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107093895B (en) | online transient state safety and stability assessment method based on automatic screening of expected fault set | |
| CN111523785A (en) | Power system dynamic security assessment method based on generation countermeasure network | |
| CN102035203A (en) | Fast calculation method of tie-line transient state stable limiting transmission power | |
| CN104779608B (en) | Safe stable on-line additional emergency control method of power system based on off-line strategy | |
| CN102185325A (en) | Method for quantitatively evaluating transient stability of electric power system based on network measuring information | |
| CN110244577A (en) | A kind of power grid surely controls emulation mode and system | |
| CN104463435A (en) | Online analysis and evaluation method for stable running areas of hydroelectric generating set | |
| CN104716646A (en) | Node coupling degree analysis method based on injection currents | |
| CN107732906A (en) | A kind of dynamic tracking transient state generator rotor angle weak steady pattern cuts machine control method | |
| CN101685964B (en) | Online scheduling aid decision method and system based on large-scale parallel processing | |
| CN103630785A (en) | Photovoltaic inverter composite particle process online residual life evaluation method | |
| CN113285452B (en) | Method for prejudging transient instability of power system and generating generator tripping control strategy | |
| CN102819618A (en) | Computing method for subarea power grid after high-power vacancy | |
| CN102005769B (en) | Disturbed mode analysis-based dynamic stability assistance decision method for power system | |
| CN114188956A (en) | Transient stability emergency control method and device considering direct current successive blocking time difference and storage medium | |
| Li et al. | Modeling and analysis of failure mechanism dependence based on petri net | |
| Grillo et al. | Indices for fast contingency ranking in large electric power systems | |
| CN113901649A (en) | Load parameter identification method, system and storage medium in frequency simulation | |
| CN104901304B (en) | Method of recognizing power system transient stability negative correlation section based on trajectory | |
| CN106253328A (en) | A kind of analysis method that wind farm grid-connected point is carried out reasonable plant-site selection | |
| CN106099949A (en) | A kind of improve off-the-line after the islanding control of partition power grid transient stability determine method opportunity | |
| CN109103876B (en) | Transient stability analysis method based on equivalent impedance | |
| Anh et al. | Load shedding apply neural network and voltage electrical distance | |
| Liu et al. | A novel fast transient stability prediction method based on pmu | |
| Cheng et al. | Anthropomorphic intelligent PID control and its application in the hydro turbine governor |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190917 |