CN109066724A - Generator PSS model checking system - Google Patents
Generator PSS model checking system Download PDFInfo
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- CN109066724A CN109066724A CN201810825586.3A CN201810825586A CN109066724A CN 109066724 A CN109066724 A CN 109066724A CN 201810825586 A CN201810825586 A CN 201810825586A CN 109066724 A CN109066724 A CN 109066724A
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- 238000004364 calculation method Methods 0.000 claims abstract description 28
- 230000001052 transient effect Effects 0.000 claims description 18
- 238000004458 analytical method Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 238000004088 simulation Methods 0.000 abstract description 12
- 230000005284 excitation Effects 0.000 abstract description 11
- 238000012795 verification Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 11
- 230000010355 oscillation Effects 0.000 description 9
- 238000012913 prioritisation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
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
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/36—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using armature-reaction-excited machines
-
- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to the technical field of electric power, and discloses a generator PSS model checking system, which comprises: the device comprises a power grid data input module, a check data generation module, an execution calculation module and a check result processing module; one end of the power grid data input module is connected with a power grid, the other end of the power grid data input module is electrically connected with one end of the check data generation module, the other end of the check data generation module is electrically connected with one end of the execution calculation module, and the other end of the execution calculation module is electrically connected with one end of the check result processing module. The single-machine infinite test system constructed based on the verification data generation module carries out simulation comparison on the specified generator under the condition of the existence of the PSS, the simulation calculation amount is small, and the influence of the existence of the PSS of the specified generator on the step response of the excitation reference voltage can be obviously reflected in the single-machine system.
Description
Technical field
The present invention relates to technical field of electric power more particularly to a kind of generator PSS Model Checking systems.
Background technique
Generator PSS (Power System Stabilizer, power system stabilizer, PSS) is a kind of to inhibit low frequency to shake
The additional excitation control technology swung and studied.It is by introducing the additional letter for leading over axle speed in excitation voltage regulation device
Number, to generate a positive damping torque, and then overcome the negative damping torque generated in former excitation voltage regulation device.Cause
This, for PSS for improving power system damping, solving low-frequency oscillation problem, improving power system dynamic stability has important work
With.
The model parameter of generator PSS, which is checked, refers to that the excitation reference voltage to specified generator under with and without PSS carries out
Step emulation, and the frequency of oscillation and damping ratio of generator electromagnetism output power are found out, judge whether PSS is effective.PSS validity
Judgment criteria are as follows: compare the frequency of oscillation with and without PSS active power, the frequency of oscillation of PSS should be the oscillation frequency of no PSS
The 90%~110% of rate.Have PSS should damping ratio than no PSS improve 0.05 or 0.1, wherein 0.05 value corresponds to the damping without PSS
The case where the case where than being greater than 0.1, the corresponding damping ratio without PSS of 0.1 value is less than 0.1.
In the prior art, it in order to check the model parameter of generator PSS, is usually emulated, is being referred under full electric network
An excitation reference voltage step emulation is carried out in the case where determining generator and having PSS, and finds out generator electromagnetism output power
Frequency of oscillation and damping ratio carry out an excitation reference voltage step emulation again in the case where specified generator is without PSS, and ask
Set out the frequency of oscillation and damping ratio of motor electromagnetic output power, then by the frequency of oscillation being calculated twice and damping ratio into
Row compares, and judges whether PSS is effective.However, above scheme needs to carry out 2 complete simulation calculations to bulk power grid, cause to count
Evaluation time is longer, and influence of the separate unit generator whether there is or not PSS to bulk power grid is very small, and the result of simulation calculation can not be very quasi-
True judges whether the PSS is effective.
Summary of the invention
The object of the present invention is to provide a kind of generator PSS Model Checking systems, are based on check data generation module institute structure
The Infinite bus power system test macro built carries out simulation comparison to specified generator whether there is or not PSS, and simulation calculation amount is small,
And it can obviously reflect influence of the specified generator whether there is or not PSS to excitation reference voltage step response in one-of-a-kind system.
In order to solve the above technical problem, the present invention provides a kind of generator PSS Model Checking systems, comprising: power grid number
According to input module, check data generation module, execute computing module, check result processing module；
One end of the electric network data input module is electrically connected with one end of the check data generation module, the check
The other end of data generation module with it is described execute computing module one end be electrically connected, it is described execute computing module the other end and
One end of the check result processing module is electrically connected；
The electric network data input module is for inputting electric network data；
The electric network data that the check data generation module is used to check inputs mould from the electric network data
It is taken out in block, and constructs Infinite bus power system test macro；
The computing module that executes is used to call the calculation procedure of the check data generation module and executes calculating；
The check result processing module is used to read the calculated result for executing computing module and carries out processing analysis.
As prioritization scheme, the Infinite bus power system test macro is specifically included: checking generator, step-up transformer, company
Connect bus, infinite busbar, route；
Wherein, described one end for checking generator is electrically connected with the primary side of the step-up transformer, the boosting transformation
The secondary side of device and the connection bus connect, and the connection bus and the infinite busbar pass through the connection.
As prioritization scheme, the check generator in the Infinite bus power system test macro is in full load condition.
As prioritization scheme, the reactance value of the step-up transformer in the Infinite bus power system test macro and the check are sent out
The capacity of motor is related.
As prioritization scheme, the reactance value of the route in the Infinite bus power system test macro is 0.0001.
As prioritization scheme, the electric network data includes flow data and electromechanical transient stability Calculation data；
The flow data includes the steady-state operation information data for checking generator；
The electromechanical transient stability Calculation data include the generator transient Model data of the nuclear power generator, magnetizing exciter
Transient Model data and generator PSS transient Model data.
As prioritization scheme, the check result processing module is used to read the calculated result for executing computing module simultaneously
Carry out processing analysis specifically:
The check result processing module is used to read the calculated result for executing computing module and sends out the check
The voltage curve of motor carries out PRONGY analysis.
The present invention provides a kind of generator PSS nucleus correcting system, including electric network data input module, check data generate mould
Block executes computing module, check result processing module；Electric network data is inputted by the electric network data input module, it will be described
Electric network data, which is transmitted to the check data generation module and constructs, clicks infinitely great test macro；Then meter is executed by described
Module is calculated to call the calculation procedure of the check data generation module and execute calculating；The last check result processing module is read
It takes the calculated result for executing computing module and carries out processing analysis.The present invention is based on constructed by check data generation module
Infinite bus power system test macro carries out simulation comparison to specified generator whether there is or not PSS, and simulation calculation amount is small, and
It can obviously reflect influence of the specified generator whether there is or not PSS to excitation reference voltage step response in one-of-a-kind system；Meanwhile
During PSS is checked, manual operation is few, and application method is simple, realizes what the automation of check process and check result counted
Standardization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of generator PSS nucleus correcting system in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of Infinite bus power system test macro in the embodiment of the present invention.
Wherein, 1, electric network data input module；2, check data generation module；21, generator is checked；22, boosting transformation
Device；23, bus is connected；24, infinite busbar；25, route；3, computing module is executed to check；4, result treatment module.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figure 1, the present invention provides a kind of generator PSS Model Checking system, comprising: electric network data input module 1,
Check data generation module 2 executes computing module 3, check result processing module 4；
One end of the electric network data input module 1 is electrically connected with one end of the check data generation module 2, the school
The other end of Nuclear Data generation module 2 is electrically connected with described 3 one end of execution computing module, described to execute the another of computing module 3
End is electrically connected with one end of the check result processing module 4；
The electric network data input module 1 is for inputting electric network data；
The electric network data that the check data generation module 2 is used to check inputs mould from the electric network data
It is taken out in block 1, and constructs Infinite bus power system test macro；
The computing module 3 that executes is used to call the calculation procedure of the check data generation module 2 and executes calculating；
The check result processing module 4 is used to read the calculated result for executing computing module 3 and carries out processing point
Analysis.
The present invention provides a kind of generator PSS nucleus correcting system, including electric network data input module, check data generate mould
Block executes computing module, check result processing module；Electric network data is inputted by the electric network data input module, it will be described
Electric network data, which is transmitted to the check data generation module and constructs, clicks infinitely great test macro；Then meter is executed by described
Module is calculated to call the calculation procedure of the check data generation module and execute calculating；The last check result processing module is read
It takes the calculated result for executing computing module and carries out processing analysis.The present invention is based on constructed by check data generation module
Infinite bus power system test macro carries out simulation comparison to specified generator whether there is or not PSS, and simulation calculation amount is small, and
It can obviously reflect influence of the specified generator whether there is or not PSS to excitation reference voltage step response in one-of-a-kind system；Meanwhile
During PSS is checked, manual operation is few, and application method is simple, realizes what the automation of check process and check result counted
Standardization.
As depicted in figs. 1 and 2, the Infinite bus power system test macro specifically includes: checking generator 21, step-up transformer
22, bus 23, infinite busbar 24, route 25 are connected；
Wherein, described one end for checking generator 21 is electrically connected with the primary side of the step-up transformer 22, the boosting
The secondary side of transformer 22 and the connection bus 23 connect, and the connection bus 23 passes through described with the infinite busbar 24
Route 25 connects.
In embodiments of the present invention, it should be noted that the Infinite bus power system test macro is joined to specified generator
When number carries out calculating analysis, the following conditions should be met:
Check generator 21 in the Infinite bus power system test macro is in full load condition；The Infinite bus power system test
The reactance value X of step-up transformer 22 in systemtranWith the check generator capacity PgenCorrelation, if Pgen <=
10MW, Xtran=0.5, if Pgen <=30MW, Xtran=0.32, if Pgen <=60MW, Xtran=0.12, such as
Fruit Pgen <=150MW, Xtran=0.08, if Pgen <=300MW, Xtran=0.04, in the case of other, Xtran=
0.013；In addition, the reactance value of the route 25 in the Infinite bus power system test macro is 0.0001 ohm.
In embodiments of the present invention, the Infinite bus power system test macro forms the first Load flow calculation text of calculation and check
Part, the second Load flow calculation file, the first electromechanical transient stability Calculation file, the second electromechanical transient stability Calculation text；Wherein, described
First Load flow calculation file is identical as data included by the second Load flow calculation file, the first electromechanical transient stabilimeter
Calculating file includes generator model, magnetizing exciter model and the PSS model for checking generator 21, and second electromechanical transient is steady
Determine in calculation document, only comprising generator model, the magnetizing exciter model for checking generator 21, does not include PSS model, so that
The Infinite bus power system test macro in specified generator whether there is or not being respectively calculated analysis in the case where PSS model, and by two
The result of secondary calculating is compared, to judge whether the PSS model has played effect.
In embodiments of the present invention, it should be noted that the electric network data includes that flow data and electromechanical transient are stablized
Calculate data；The flow data includes the steady-state operation information data for checking generator；The electromechanical transient stabilimeter
It counts according to generator transient Model data, the transient Model data of magnetizing exciter and the generator for including the nuclear power generator
The transient Model data of PSS.
In embodiments of the present invention, the check result processing module 4 is used to read the calculating for executing computing module 3
As a result and processing analysis is carried out specifically:
The check result processing module 4 is used to read the calculated result for executing computing module 3 and to the check
The voltage curve of generator 21 carries out PRONGY analysis, to obtain specified oscillation of the generator whether there is or not PSS model
Frequency and damping ratio, and result is saved in check result file.
To sum up, the present invention provides a kind of generator PSS nucleus correcting system, including the life of electric network data input module, check data
At module, execute computing module, check result processing module；Electric network data is inputted by the electric network data input module, it will
The electric network data, which is transmitted to the check data generation module and constructs, clicks infinitely great test macro；Then it is held by described
Row computing module calls the calculation procedure of the check data generation module and executes calculating；The last check result handles mould
Block reads the calculated result for executing computing module and carries out processing analysis.The present invention is based on check data generation module institute structures
The Infinite bus power system test macro built carries out simulation comparison to specified generator whether there is or not PSS, and simulation calculation amount is small,
And it can obviously reflect influence of the specified generator whether there is or not PSS to excitation reference voltage step response in one-of-a-kind system；
Meanwhile during PSS is checked, manual operation is few, and application method is simple, realizes automation and the check result system of check process
The standardization of meter.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of generator PSS Model Checking system, which is characterized in that the generator PSS Model Checking system includes: power grid
Data input module, executes computing module, check result processing module at check data generation module；
One end of the electric network data input module is electrically connected with one end of the check data generation module, the check data
The other end of generation module with it is described execute computing module one end be electrically connected, it is described execution computing module the other end with it is described
One end of check result processing module is electrically connected；
The electric network data input module is for inputting electric network data；
The electric network data that the check data generation module is used to check is from the electric network data input module
It takes out, and constructs Infinite bus power system test macro；
The computing module that executes is used to call the calculation procedure of the check data generation module and executes calculating；
The check result processing module is used to read the calculated result for executing computing module and carries out processing analysis.
2. generator PSS Model Checking system as described in claim 1, which is characterized in that Infinite bus power system test system
System specifically includes: checking generator, step-up transformer, connection bus, infinite busbar, route；
Wherein, described one end for checking generator is electrically connected with the primary side of the step-up transformer, the step-up transformer
Secondary side and the connection bus connect, and the connection bus and the infinite busbar pass through the connection.
3. generator PSS Model Checking system as claimed in claim 2, which is characterized in that Infinite bus power system test system
Check generator in system is in full load condition.
4. generator PSS Model Checking system as claimed in claim 2, which is characterized in that Infinite bus power system test system
The reactance value of step-up transformer in system is related to the check generator capacity.
5. generator PSS Model Checking system as claimed in claim 2, which is characterized in that Infinite bus power system test system
The reactance value of route in system is 0.0001.
6. generator PSS Model Checking system as described in claim 1, which is characterized in that the electric network data includes trend
Data and electromechanical transient stability Calculation data；
The flow data includes the steady-state operation information data for checking generator；
The electromechanical transient stability Calculation data include the generator transient Model data of the nuclear power generator, magnetizing exciter it is temporary
The transient Model data of states model data and generator PSS.
7. generator PSS Model Checking system as described in claim 1, which is characterized in that the check result processing module
For reading the calculated result for executing computing module and carrying out processing analysis specifically:
The check result processing module is used to read the calculated result for executing computing module and to the check generator
Voltage curve carry out PRONGY analysis.
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| CN201810825586.3A CN109066724B (en) | 2018-07-24 | 2018-07-24 | Generator PSS model checking system |
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|---|---|---|---|
| CN201810825586.3A CN109066724B (en) | 2018-07-24 | 2018-07-24 | Generator PSS model checking system |
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