CN109240124A - A kind of electric power stability control strategy analogue system - Google Patents
A kind of electric power stability control strategy analogue system Download PDFInfo
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- CN109240124A CN109240124A CN201811286061.3A CN201811286061A CN109240124A CN 109240124 A CN109240124 A CN 109240124A CN 201811286061 A CN201811286061 A CN 201811286061A CN 109240124 A CN109240124 A CN 109240124A
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- 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
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Abstract
The present invention provides a kind of electric power stability control strategy analogue system, including an emulation platform, two modelings emulation platform, real-time data base, stability control strategy database, emulation platform is using electromechanics-electromagnetic transient hybrid simulation platform construction operation, the two modelings emulation platform is using the building operation of graphical simulation support system, emulation platform and two modelings emulation platform are controlled by database realizing data exchange and mutually instruction, stability control strategy is stored in the stability control strategy database, the two modelings emulation platform is connected with stability control strategy data field signal.The present invention is able to achieve the in-circuit emulation to power grid primary system and electrical secondary system, obtains the optimal stability control strategy of electric system, analyzes weak link in power grid, proposes suggestions on Optimization and measure.
Description
Technical field
The present invention relates to electric analog technical field more particularly to a kind of electric power stability control strategy analogue systems.
Background technique
With the raising that safe stability of power system and power supply reliability require, power system security stabilizing control system
(hereinafter referred to as " stabilized control system ") is widely used in each power grid in the whole nation, and becomes indispensable important of power grid day-to-day operation
Component part.Power system security stabilizing control system is in large scale, device is large number of, and control strategy is complicated and changeable, it is necessary to
Dynamic simulation test is carried out by RTDS pilot system, to ensure system reliability of operation.
The RTDS emulation testing of traditional stabilized control system is almost the same with scene by building mostly in laboratory integrated test
Stabilized control system, directly acquire RTDS pilot system output quantity, and according to Off-line control policy action feed back to RTDS test
System, to achieve the purpose that examine stabilized control system control strategy and reliability and validity.However, by practical application, surely
It is huge to control system scale, wiring is complicated, in laboratory environments can only major part to stabilized control system or main policies carry out
Dynamic simulation test, can not completely true simulation scene stabilized control system action behavior, and build steady control system in laboratory
When system carries out RTDS emulation testing, need to carry out complicated wiring and configuration, the efficiency of l-G simulation test is lower.Therefore, it establishes and closes
It is real as stabilized control system test to simulate electric power stability control strategy in electric power primary system emulation platform and electrical secondary system emulation platform
Test the research emphasis of technology.
Summary of the invention
The purpose of the present invention is to provide a kind of electric power stability control strategy analogue systems, to solve to propose in above-mentioned background technique
The problem of.
The present invention is achieved by the following technical solutions: a kind of electric power stability control strategy analogue system, including once emulates
Platform, two modelings emulation platform, real-time data base, stability control strategy database, an emulation platform use electromechanics-electromagnetism
The operation of transient hybrid simulation platform construction, the two modelings emulation platform are run using the building of graphical simulation support system,
Emulation platform and two modelings emulation platform are controlled by database realizing data exchange and mutually instruction, described
Stability control strategy is stored in stability control strategy database, the two modelings emulation platform is connected with stability control strategy data field signal.
Preferably, the electromechanics-electromagnetic transient hybrid simulation platform is made of force device model, the force device mould
Type includes generator, exciter and excitation regulation device, governor, motor, transformer, load, breaker, power transmission line, electricity
Anti- device, string complement part, the electromechanics-electromagnetic transient hybrid simulation platform can be constructed not using different force devices as needed
With electric power primary system, the electromechanics-electromagnetic transient hybrid simulation platform it is exportable with real system actually identical voltage,
Current waveform or other electric parameters.
Preferably, the two modelings emulation platform constructs corresponding Power Secondary using graphical simulation support system and sets
Standby component models, the two modelings emulation platform include data sampling submodule, protection operation submodule, logic judgment submodule
Block, the secondary current instantaneous voltage that the data-acquisition submodule is used to export an emulation platform samples, and sentences
It is disconnected whether starting protection operation submodule；The protection operation submodule is for inputting the second power equipment component models
Definite value is protected, and protection definite value is compared with the secondary current voltage value；The logic judgment submodule is according to comparing
As a result, the fast search stability control strategy in stability control strategy database, obtains optimum controling strategy.
Preferably, each force device model in the electromechanics-electromagnetic transient hybrid simulation platform can be built with secondary
Second power equipment component models in mould emulation platform are associated.
Preferably, the protection definite value includes route protection definite value, tranformer protection definite value, bus protection definite value.
Preferably, the secondary current voltage value that the data-acquisition submodule is used to export an emulation platform is adopted
When sample, sample frequency is not higher than 4000Hz.
Preferably, an emulation platform, two modelings emulation platform, the connection relationship between real-time data base are as follows:
After emulation platform completes the simulation calculation of a step-length, write data into real-time data base, an emulation platform itself
Enabling signal is sent into wait state, and to two modelings emulation platform, two modelings emulation platform receives the starting letter
After number, data are obtained from real-time data base and pass sequentially through data sampling submodule, protection operation submodule, logic judgment
Module is handled, and processing result is written in real-time data base.
Compared with prior art, what the present invention reached has the beneficial effect that:
A kind of electric power stability control strategy analogue system provided by the invention passes through electromechanics-electromagnetic transient hybrid simulation platform structure
An emulation platform is built, two modelings emulation platform is constructed by graphical simulation support system, while constructing stability control strategy number
According to library, the emulation to electric system primary equipment and secondary equipment in power system can be realized without hardware device, it can be according to existing
The protection of field configuration and its principle of compositionality, the foundation of realization electric power digital model easily and fast, while can be according to steady control plan
Slightly database, the correctness of stability control strategy is checked, analyze electric system in weak link, propose suggestions on Optimization and
Measure.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the preferred embodiment of the present invention, for
For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of schematic diagram of electric power stability control strategy analogue system provided by the invention；
Fig. 2 is a kind of two modelings emulation platform schematic diagram of electric power stability control strategy analogue system provided by the invention.
Specific embodiment
In order to be best understood from the technology of the present invention content, be provided below specific embodiment, and in conjunction with attached drawing to the present invention do into
The explanation of one step.
Referring to Fig. 1, a kind of electric power stability control strategy analogue system, including an emulation platform, two modelings emulation platform, reality
When database, stability control strategy database, an emulation platform is using electromechanics-electromagnetic transient hybrid simulation platform construction fortune
Row, the two modelings emulation platform using graphical simulation support system building operation, an emulation platform with it is secondary
Modeling and simulation platform is controlled by database realizing data exchange and mutually instruction, is stored in the stability control strategy database
Stability control strategy, the two modelings emulation platform are connected with stability control strategy data field signal.
Specifically, the electromechanics-electromagnetic transient hybrid simulation platform possesses force device model abundant, the electric power member
Part model includes generator, exciter and excitation regulation device, governor, motor, transformer, load, breaker, transmission of electricity
Line, reactor, string complement part, while electromechanics-electromagnetic transient hybrid simulation platform also has the calculation method of optimization, it is temporary in electromagnetism
Under state simulation model, when emulating the system of certain node size, calculating speed be can achieve in real time；
This platform can simulate conversion hysteria failure in various types failure and multiple failure, including area, event outside the area Nei Zhuan of area
Turn troubles inside the sample space etc. outside barrier, area；
This platform fault type can be arbitrarily arranged, including fault time, fault resistance etc., can simulate reclosing
Movement and protection together in permanent fault phenomena such as, in failure process, fault resstance is alterable；
This platform has power of fixed frequency model, and external characteristics includes tidal currenttype (i.e. balance nodes, PV node, PQ
Node), active power, reactive power, voltage magnitude and voltage-phase；
This platform has motor model, and can simulate the starting process of various capacity electric machines；
This platform has single-phase two-winding transformer, three-phase two-simulation transformer and three-phase three-winding transformer model (packet
Include auto-transformer), transformer neutral point should include various earthing types；
This platform has two kinds of circuit models of lumped parameter and distribution parameter, also there is parallel lines on same tower double back not replace route
Model, can be with the transient process of accurate simulation route；
This platform has the model of high-voltage shunt reactor；
This platform has voltage transformer and current transformer model, and voltage transformer has electromagnetic type and two kinds of condenser type
Type；
This platform has an all kinds of passive element models: resistance, inductance, capacitor, series connection RL, parallel connection RL, the RC that connects, parallel connection RC,
Connect RLC, parallel connection RLC, reactor, earthing reactor etc.；
System has all kinds of modeling of nonlinear components: saturable reactor, arrester and discharging gap etc.；Operator can root
According to needing to construct different electric power primary systems using above-mentioned force device and computation model, and it is exportable real with real system
The identical voltage in border, current waveform or other electric parameters, user can be by graphical interfaces to electric network composition and component parameters
It modifies, and can neatly change system primary connection mode, to carry out complete analogue simulation to running situation.
The electrical secondary system part of electric system is a many kinds of and complicated system, is set comprising various
It is standby, but study carefully its mechanism, nothing more than several classifications, in this way, one kind can be classified as principle identical secondary device, certainly with DDRTS
Define control module and write one section of code to describe its general character, and its characteristic part is separated, with several control modules come
Mark.Two second part can be modeled by the control module of graphical simulation system, wherein control mould includes each generic module abundant, benefit
It, can be with these basic modules.Customized control variable system provides open platform, can be protected and be made by oneself according to various principles
Adopted relay protective scheme.
The two modelings emulation platform is constructed using graphical simulation support system, and system that employs advanced models
Principle is constructed, has the characteristics that good stability, high reliablity, code operational efficiency are high, while the platform also utilizes newest meter
Calculation machine graph technology develops the powerful graphical function such as graphic plotting, graphical modeling and graphical commissioning test, system
The compatibility with other analogue systems is also fully considered, for the identifiable text model of other analogue systems building, originally
Text model can be automatically formed patterned model by system, or this paper model is added to existing graphical model
In can also conveniently realize data connection with other systems.
The graphical simulation support system includes algorithms library and modeling area, and algorithm need to only be dragged to modeling area
A module is generated, the input and output of each module are connected with connecting line, a new secondary model has just been built into, can build
All controllers are (such as: field regulator and governor, variable-impedance component, voltage source, the electric current of generator in electric system at present
Source etc.).The module includes more than 20 kinds of different mathematical function modules, more than ten kinds of different basic time modules, eight kinds of signals
Generator, five kinds of logical functions, seven kinds of basic nonlinear function modules, three kinds of control functions and customized control variable.
Referring to fig. 2, two modelings emulation platform includes data sampling submodule, protection operation submodule, logic judgment
Module, the secondary current instantaneous voltage that the data-acquisition submodule is used to export an emulation platform sample, and
Judge whether starting protection operation submodule；The protection operation submodule is for inputting the second power equipment component models
Protection definite value；
Protecting definite value includes route protection definite value, tranformer protection definite value, bus protection definite value, the protection definite value inputted
The secondary current instantaneous voltage obtained with sampling is compared；The logic judgment submodule is surely being controlled according to comparison result
Fast search stability control strategy in policy database obtains optimum controling strategy.
Specifically, electromechanics-the electro-magnetic transient need to be mixed when establishing an emulation platform and two modelings emulation platform
The each force device model closed in emulation platform can be with the second power equipment component models in two modelings emulation platform
It is associated, the incidence relation of a secondary device, Unified Device classification and mark are established, standardization name is carried out to various kinds of equipment,
Using unified equipment encoding system, determines the unique ID or title of each equipment in a model, reach the consistent of whole network equipment
Classification and unifying identifier realize being effectively matched for a secondary data model.
In one embodiment of the invention, the data-acquisition submodule is used for the secondary of an emulation platform output
When Current Voltage value is sampled, sample frequency is not higher than 4000Hz.
Specifically, being write data into real-time data base, one after the simulation calculation of emulation platform one step-length of completion
Secondary emulation platform itself enters wait state, and sends enabling signal, two modelings emulation platform to two modelings emulation platform
After receiving the enabling signal, data are obtained from real-time data base and pass sequentially through data sampling submodule, protection operator
Module, logic judgment submodule are handled, the fast search stability control strategy in stability control strategy database, obtain best steady control plan
Slightly, and processing result is written in real-time data base.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (7)
1. a kind of electric power stability control strategy analogue system, which is characterized in that including an emulation platform, two modelings emulation platform,
Real-time data base, stability control strategy database, an emulation platform is using electromechanics-electromagnetic transient hybrid simulation platform construction fortune
Row, the two modelings emulation platform using graphical simulation support system building operation, an emulation platform with it is secondary
Modeling and simulation platform is controlled by database realizing data exchange and mutually instruction, is stored in the stability control strategy database
Stability control strategy, the two modelings emulation platform are connected with stability control strategy data field signal.
2. a kind of electric power stability control strategy analogue system according to claim 1, which is characterized in that the electromechanics-electromagnetism is temporary
State hybrid simulation platform is made of force device model, and the force device model includes generator, exciter and adjustment of field excitation
Device, governor, motor, transformer, load, breaker, power transmission line, reactor, string complement part, the electromechanics-electromagnetism are temporary
State hybrid simulation platform can construct different electric power primary systems, the electromechanical-electricity using different force devices as needed
Magnetic transient hybrid simulation platform exportable actually identical voltage, current waveform or other electric parameters with real system.
3. a kind of electric power stability control strategy analogue system according to claim 2, which is characterized in that the two modelings emulation
Platform constructs corresponding second power equipment component models, the two modelings emulation platform using graphical simulation support system
Including data sampling submodule, protection operation submodule, logic judgment submodule, the data-acquisition submodule is used for primary
The secondary current instantaneous voltage of emulation platform output is sampled, and judges whether starting protection operation submodule；The guarantor
Operator module is shipped sth. under guard for inputting the protection definite values of the second power equipment component models, and will protection definite value with it is described secondary
Current Voltage value is compared；The logic judgment submodule is according to comparison result, the fast search in stability control strategy database
Stability control strategy obtains optimum controling strategy.
4. a kind of electric power stability control strategy analogue system according to claim 3, which is characterized in that the electromechanics-electromagnetism is temporary
Each force device model in state hybrid simulation platform can be with the second power equipment element in two modelings emulation platform
Model is associated.
5. a kind of electric power stability control strategy analogue system according to claim 3, which is characterized in that the protection definite value includes
Route protection definite value, tranformer protection definite value, bus protection definite value.
6. a kind of electric power stability control strategy analogue system according to claim 3, which is characterized in that the data acquisition mould
Block is for when sampling to the secondary current voltage value that an emulation platform exports, sample frequency to be not higher than 4000Hz.
7. a kind of electric power stability control strategy analogue system according to claim 1-6, which is characterized in that described primary
Emulation platform, two modelings emulation platform, the connection relationship between real-time data base are as follows: one time emulation platform completes a step-length
Simulation calculation after, write data into real-time data base, emulation platform itself enters wait state, and to two modelings
Emulation platform sends enabling signal and obtains number from real-time data base after two modelings emulation platform receives the enabling signal
According to and pass sequentially through data sampling submodule, protection operation submodule, logic judgment submodule are handled, and processing result
It is written in real-time data base.
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| CN110162843A (en) * | 2019-04-28 | 2019-08-23 | 南方电网科学研究院有限责任公司 | A kind of power grid primary system joint electrical secondary system real-time simulation modeling method and device |
| CN110233477A (en) * | 2019-05-29 | 2019-09-13 | 海南电网有限责任公司电力科学研究院 | Steady control analogue system based on three lines of defence emulation |
| CN110426967A (en) * | 2019-08-07 | 2019-11-08 | 威胜集团有限公司 | Analog simulation method, device and the storage medium of household loads data |
| 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 |
| CN111679655A (en) * | 2020-06-18 | 2020-09-18 | 海南电网有限责任公司 | Constant value calibration device of safety and stability control system |
| CN112464437A (en) * | 2020-10-30 | 2021-03-09 | 海南电网有限责任公司电力科学研究院 | Parameter identification method of electric power simulation model |
| CN114114956A (en) * | 2021-11-10 | 2022-03-01 | 南方电网科学研究院有限责任公司 | Real-time digital simulation system based on external stability control simulation model |
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| CN110162843B (en) * | 2019-04-28 | 2023-01-03 | 南方电网科学研究院有限责任公司 | Real-time simulation modeling method and device for power grid primary system and secondary system |
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| 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 |
| CN111679655A (en) * | 2020-06-18 | 2020-09-18 | 海南电网有限责任公司 | Constant value calibration device of safety and stability control system |
| CN111679655B (en) * | 2020-06-18 | 2023-09-15 | 海南电网有限责任公司 | Fixed value checking device of safety and stability control system |
| CN112464437A (en) * | 2020-10-30 | 2021-03-09 | 海南电网有限责任公司电力科学研究院 | Parameter identification method of electric power simulation model |
| CN112464437B (en) * | 2020-10-30 | 2022-11-08 | 海南电网有限责任公司电力科学研究院 | Parameter identification method of electric power simulation model |
| CN114114956A (en) * | 2021-11-10 | 2022-03-01 | 南方电网科学研究院有限责任公司 | Real-time digital simulation system based on external stability control simulation model |
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