CN108304678A - The method for being directed to different fuel calculation gas turbine performance based on emulation platform - Google Patents
The method for being directed to different fuel calculation gas turbine performance based on emulation platform Download PDFInfo
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Abstract
The invention belongs to gas-turbine plant technical fields, more particularly to a kind of method being directed to different fuel calculation gas turbine performance based on emulation platform, Calculation of Physical Properties program " make_table.m " is run in Matlab programs, after setting fuel element, the middle generation air and combustion gas physical property file of " workspace " in the interfaces MATLAB, and preserve；Initialization program " initializtion_Fcn.m " is run, gas turbine performance computation model data initialization is carried out；" GT_plant.mdl " file is double-clicked, into host computer program；The external environment condition parameter of gas turbine computation model is set；After the external environment setting for completing computation model, computation model is run；Result of calculation is recorded in workspace, while the system of checking currently each major section parameter value can be also clicked in " Result " module of simulation model.
Description
Technical field：
The invention belongs to gas-turbine plant technical fields, and in particular to one kind is based on emulation（Matlab/Simulink）Platform
For the method for different fuel calculation gas turbine performance.
Background technology：
Simulation calculation is carried out to Gas Turbine, the technical risk in gas turbine product development process can be reduced,
Carry out safety analysis and loop optimization etc..External gas turbine manufacturer has formed the opposite bank of gas turbine performance emulation mostly
System, and ripe business software is developed with this base growth.Currently, external for the well-known of Gas Turbine emulation
Business software has Gate Cycle, GSP, Gas turbine and PROOSIS etc., these softwares mainly for aero-engine or
Industry gas turbine, although the simulation calculation to the overall performance of gas turbine can be realized by conditions setting, only needle
It, can not be to fuel to certain several special fuel（Including fuel）Component makes arbitrary proportioning modification.Due to these business software cores
Code does not open, we can not make underlying programs any modification..
Invention content：
The object of the present invention is to provide a kind of novel methods calculating gas turbine performance for different fuel group timesharing.This method
It is developed according to gas turbine nonlinear mathematical model, the requirement of different fuel gas turbine performance calculating can be met.
The technical solution adopted by the present invention is：One kind is based on emulation（Matlab/Simulink）Platform is directed to different fuel
The method of calculation gas turbine performance, includes the following steps：
Step 1: replicating in the current Folder in the path to the interfaces MATLAB of software for calculation file place, calculate
The included file of software；
Step 2: double-clicking make_table.m files, the setting of propellant composition is carried out, this document is run after setting,
Wuxingtable.mat files are covered after selecting content in the result of calculation of workspace；
Step 3: operation initializtion_Fcn.m files, carry out the importing of initial value, before running calculation procedure, carry out
The setting of initial value is emulated, each group of initial value corresponds to a steady working condition, the initial_matrix numbers in workspace
The parameter for initial value setting finally stablized according to system is had recorded in file；If next time calculates finally steady with this this computing system
The operating mode of timing is original state, needs right click initial_matrix data files, clicks save as options, and cover
Initial_matrix files；
Step 4: double-clicking GT_plant.mdl files, into host computer program, mode input end Pin is atmospheric pressure, unit
kP”；Mode input end Pout is pressure at expulsion, unit kPa；Tin is atmospheric temperature, unit K；Load is load variation rule
Rule；Fuel is required fuel, unit kg/h；
Step 5: after the external environment for completing computation model is set, computation model is run, simulation result is recorded in workspace
In result data files in, in the result modules of simulation model click check system currently each major section parameter
Value.
Further, it using Matlab/Simulink simulation softwares as platform, is handled using the variable specific heat method of piecewise fitting
Working medium physical property counts air and combustion gas physical property by working out M LISP program LISPs for the mass fraction of different fuel component
It calculates, result of calculation is simulated model and calls；Its simulation model is based on modular modeling ideology, the non-linear number according to gas turbine
Model is learned, fully considers the rotor inertia of volume inertia between component, rotor, gas turbine steady-state behaviour and dynamic can be achieved at the same time
The calculating demand of state property energy；
Further, working medium physical property is handled using the variable specific heat method of piecewise fitting, for members such as C, H, O, N, S in different fuel
The mass fraction of element need to only be modified the mass fraction of fuel each element in M LISP program LISPs by establishment M LISP program LISPs,
The working medium physical parameter database of air and combustion gas when the fuel of different component just can be obtained as fuel need to only run program
Once, this database data is preserved, Gas Turbine Simulation model calls it.Use the fuel of another component
When, it runs after M programs calculate and preserves again；
Further, the external call time is eliminated, simulation velocity is accelerated, requirement of the real-time simulation to model can be reached；
Further, the rotator inertia for having fully considered the volume inertia and rotor between component, using interpolation method to gas turbine
Characteristics of components is handled, and is considered the thermal processions such as anti-asthma is deflated, cooling pumping blends, relatively really effectively can be simulated combustion gas
Turbine thermal procession.
Beneficial effects of the present invention：Provide a kind of novel side calculating gas turbine performance for different fuel group timesharing
Method.This method is developed according to gas turbine nonlinear mathematical model, can meet the calculating of different fuel gas turbine performance
Requirement.Using Matlab/Simulink softwares as emulation platform, for the quality point of the elements such as C, H, O, N, S in different fuel
Number, calculates air and combustion gas physical property by the M LISP program LISPs of establishment, only need to be to fuel each element in M LISP program LISPs
Mass fraction is modified, so that it may the working medium physical parameter data of air and combustion gas when obtaining the fuel of different component as fuel
Library only need to once calculate, the Gas Turbine Simulation model being prepared can be realized after preservation and call and carry out simulation calculation.Combustion gas
Marine Simulation model is based on modular modeling ideology, according to the nonlinear mathematical model of gas turbine components, fully considers portion
The rotor inertia of volume inertia and rotor between part is handled gas turbine component characteristic using interpolation method, using segmentation
The variable specific heat method of fitting handles working medium physical property, considers that anti-asthma is deflated, cooling is evacuated the thermal processions such as blending.The simulation model can
The calculating demand of gas turbine steady-state behaviour and dynamic property is realized simultaneously.The computational methods have physical property processing aspect simple
It is convenient, there is stronger versatility.
Description of the drawings：
Gas turbine performance computation model total figure in Fig. 1 specific embodiments；
Gas turbine performance ontology computation model figure in Fig. 2 specific embodiments；
Air and combustion gas working medium physical property program in Fig. 3 specific embodiments；
The air and combustion gas physical property file being calculated in Fig. 4 specific embodiments；
Computation model is initialized in Fig. 5 specific embodiments.
Specific implementation mode.
Specific embodiment
Make furtherly with reference to Fig. 1-Fig. 5 methods for calculating gas turbine performance to different fuel group timesharing of the present invention
It is bright：
As shown in Figure 1, it is to realize shape that different fuel group timesharing, which calculates the method for gas turbine performance with Gas Turbine Simulation model,
Formula, the simulation model are based on modular modeling ideology, include mainly fuel controller 1, operation result display 2, gas turbine
Simulation model ontology 3, load 4, inlet loss 5 and discharge loss 6.
As shown in Fig. 2, Gas Turbine Simulation model ontology includes low-pressure compressor module 1, high-pressure compressor module 3, combustion
Burn room module 4, low-pressure turbine module 7, high-pressure turbine module 5, power turbine module 9, low pressure rotor module 10, high pressure rotor mould
Between block 11, dynamic whirling submodule 12, high-low pressure compressor between volume module 2, high and low pressure turbine volume module 6 and low-pressure turbine with
Volume module 8 between power turbine.
As shown in Figure 3-Figure 5, a kind of that different fuel calculation gas turbine is directed to based on Matlab/Simulink platforms
The method of performance, includes the following steps：
Step 1: replicating in " the current Folder " in the path to the interfaces MATLAB of software for calculation file place, such as Fig. 1 institutes
Show the included file of software for calculation occur in the left part of Fig. 1；
Step 2: double-clicking " make_table.m " file, the setting of propellant composition is carried out, this document is run after setting,
Content as shown in Figure 2 is selected to cover " wuxingtable.mat " file in the result of calculation of workspace；In Matlab journeys
Calculation of Physical Properties program " make_table.m " is run in sequence, after setting fuel element, in the interfaces MATLAB in " workspace "
Air and combustion gas physical property file are generated, and is preserved；
Step 3: operation " initializtion_Fcn.m " file, carries out the importing of initial value, it, must before running calculation procedure
The setting of emulation initial value must be carried out, each group of initial value corresponds to a steady working condition." initial_ in workspace
The parameter for initial value setting that system is finally stablized is had recorded in matrix " data files；If calculating next time with this this calculating
Operating mode when system is finally stablized is original state, needs right click " initial_matrix " data file, clicks " save as " choosing
, and cover such as " initial_matrix " file in Fig. 3；Initialization program " initializtion_ in service chart 5
Fcn.m " carries out gas turbine performance computation model data initialization；
Step 4: gas turbine performance computation model " GT_plant.mdl " file in Fig. 5 is double-clicked, into host computer program, mould
Type input terminal " Pin " is atmospheric pressure, unit " kPa "；Mode input end " Pout " is pressure at expulsion, unit " kPa "；
" Tin " is atmospheric temperature, unit " K "；" load " is load changing rule；" fuel " is required fuel, and unit is " kg/h "；Such as
Shown in Fig. 1, the external environment condition parameter of gas turbine computation model is set（Atmospheric pressure and environment temperature）.
Step 5: after the external environment for completing computation model is set, computation model is run, simulation result is recorded in
In result data files in workspace, it is currently each in the result modules of simulation model can also to click the system of checking
Major section parameter value.
This method is to realize a kind of working medium quickly and easily calculating air and combustion gas for the timesharing of different fuel group
Physical property and calculating, display and the result output etc. that gas turbine performance is realized on the simulation model for have the function of visualization interface
Method.
Claims (1)
1. a kind of method being directed to different fuel calculation gas turbine performance based on emulation platform, it is characterised in that：Including
Following steps：
Step 1: replicating in the current Folder in the path to the interfaces MATLAB of software for calculation file place, calculate
The included file of software；
Step 2: double-clicking make_table.m files, the setting of propellant composition is carried out, this document is run after setting,
Wuxingtable.mat files are covered after selecting content in the result of calculation of workspace；
Step 3: operation initializtion_Fcn.m files, carry out the importing of initial value, before running calculation procedure, carry out
The setting of initial value is emulated, each group of initial value corresponds to a steady working condition, the initial_matrix numbers in workspace
The parameter for initial value setting finally stablized according to system is had recorded in file；If next time calculates finally steady with this this computing system
The operating mode of timing is original state, needs right click initial_matrix data files, clicks save as options, and cover
Initial_matrix files；
Step 4: double-clicking GT_plant.mdl files, into host computer program, mode input end Pin is atmospheric pressure, unit
kP”；Mode input end Pout is pressure at expulsion, unit kPa；Tin is atmospheric temperature, unit K；Load is load variation rule
Rule；Fuel is required fuel, unit kg/h；
Step 5: after the external environment for completing computation model is set, computation model is run, simulation result is recorded in workspace
In result data files in, in the result modules of simulation model click check system currently each major section parameter
Value.
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Cited By (4)
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| CN109751088A (en) * | 2019-03-25 | 2019-05-14 | 中国船舶重工集团公司第七0三研究所 | A kind of connecting structure of block-type turbine outer ring for marine gas turbine |
| CN109783882A (en) * | 2018-12-21 | 2019-05-21 | 哈尔滨工程大学 | A kind of gas turbine fuel system modeling and simulating method for combining matlab and flowmaster |
| CN111177866A (en) * | 2019-12-30 | 2020-05-19 | 中国船舶重工集团公司第七0三研究所 | Turbine characteristic processing method based on SMOOTH T and MATLAB |
| CN113032914A (en) * | 2020-11-26 | 2021-06-25 | 中国科学院工程热物理研究所 | Gas turbine performance calculation and simulation method |
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| CN111177866B (en) * | 2019-12-30 | 2022-10-25 | 中国船舶重工集团公司第七0三研究所 | Turbine characteristic processing method based on SMOOTH T and MATLAB |
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