CN103942091A - MATLAB user-defined model and PSASP joint simulation excitation system simulation method and system - Google Patents
MATLAB user-defined model and PSASP joint simulation excitation system simulation method and system Download PDFInfo
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- CN103942091A CN103942091A CN201410154014.9A CN201410154014A CN103942091A CN 103942091 A CN103942091 A CN 103942091A CN 201410154014 A CN201410154014 A CN 201410154014A CN 103942091 A CN103942091 A CN 103942091A
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Abstract
The invention provides an MATLAB user-defined model and PSASP joint simulation excitation system simulation method and system. According to the method, a PSASP simulation system based on a practical power grid model is used as a platform, an excitation system model consistent with a practical device is established through an image modeling function of an MATLAB program, and through joint simulation of the PSASP simulation system and an MATLAB model, excitation system simulation based on the practical power grid background is achieved. Organic combination of an excitation system user-defined model and practical large power grid simulation is achieved conveniently. Through abundant image modeling tools provided by an MATLAB, excitation system user-defined model establishing is very convenient, through excitation system simulation under the practical power grid background, various excitation system tests under power generator no-load and load working conditions can be completed, especially tests under various extreme conditions can be completed, the dynamic behavior of a specific unit excitation system under the situation that the system is in fault can be simulated, and an effective and convenient measure is provided for comprehensive evaluation of the performance of the excitation system.
Description
Technical field
The present invention relates to a kind of excitation system emulation mode, relate in particular to excitation system emulation mode and the system of a kind of MATLAB self-definition model and PSASP associative simulation.
Background technology
Excitation control not only plays a part very important to the safe and stable operation of genset, the voltage after electric system transport capacity, power system stability and electric network fault is recovered to have important impact simultaneously.The research of the aspect such as selection, the impact of excitation system on power grid operation of the manufacturing and designing of excitation system, generating unit excitation mode, excitation control law and adjustment of field excitation parameter, all needs to support by a large amount of experiments.In view of the concrete feature of genset and operation of power networks, many pilot projects cannot complete on actual motion unit.Therefore, be necessary the mode by emulation, pilot project is supplemented and perfect.
The early stage dynamic model unit that adopts is as research technique, and advantage is the dynamic behaviour that can simulate truly tested generator and excitation system in the mode of physics.Shortcoming is the restriction of chamber scale of being put to the test, and cannot the dynamic behaviour in electric system study excitation system.Be generally used for the control performance of research excitation system to single generator group.At present, this test method is still applied to the partial properties test of field regulator physical unit.
Emulation of the computer software: electric system simulation program PSASP, BPA, PSSE etc. all can realize the emulation to exciter control system to some extent, and it is flexible, with low cost that Computer Simulation has advantages of.But the excitation system version that is limited by its configuration is very few, and there is some difference with actual device, often can not meet simulation accuracy requirement.
Excitation system emulation based on RTDS: both can define excitation system model by program, specific excitation system is carried out to Computer Simulation research completely, actual excitation controller can be realized to closed loop by interface arrangements such as power amplifiers with RTDS is again connected, carry out hybrid simulation, can overcome the shortcoming of pure software for calculation emulation.But because the restriction (hardware investment is very expensive) that is limited by hardware size only can be carried out the emulation of small-scale system, can not be used for the emulation of extensive actual electric network.
Therefore, find a kind of operation background that actual large electrical network can be provided, the emulation mode of self-defined excitation system model easily again, becomes and is badly in need of the technical barrier that solves.
The basic module limited amount that [paper] excitation system user-defined model based on IPMT designs and simulation study: UDM provides, cannot realize the modeling to the each link of actual excitation system; The structure matrix of topological structure is expressed in the mode typing of inputting by file, need to apply visual C++ coding, realizes the interface transmission of data, has reduced the convenience using.
Chinese invention patent (patent name: the excitation system global function characteristic Simulation system based on MATLAB, application number 201310444834.7): utilize MATLAB program to set up realistic excitation system realistic model and the single system of several units, realize the emulation to excitation system.Cannot realize the excitation system emulation under actual complex typical case electric power system background.
Chinese invention patent (patent name: a kind of excitation system simulation test device for synchronous generator, application number 201110083215.0): disclose a kind of excitation system simulation test device for synchronous generator.The present invention is a kind of proving installation, can realize the emulation to generator, by with the connecting of actual excitation controller, realize the test to excitation system.
Summary of the invention
Object of the present invention is exactly in order to address the above problem, excitation system emulation mode and the system of a kind of MATLAB self-definition model and PSASP associative simulation are provided, and it has the combination advantage that has realized easily excitation system self-definition model and actual Bulk power system simulation.
To achieve these goals, the present invention adopts following technical scheme:
The excitation system emulation mode of MATLAB self-definition model and PSASP associative simulation, taking the PSASP analogue system based on actual electric network model as platform, build the field regulator model consistent with actual device by MATLAB program, realize the excitation system emulation based under actual electric network background by the associative simulation of PSASP analogue system and MATLAB model; Concrete steps are as follows:
Step (1): utilize MATLAB to set up the self-definition model of the excitation system tallying with the actual situation: in the Simulink of MATLAB environment, utilize the model bank of MATLAB, by graphical modeling method, self-definedly set up realistic excitation system model;
Step (2): use Real-Time Workshop module code in MATLAB automatically to generate, be C code self-defining MATLAB excitation system model conversation, according to the requirement of emulation interface, generation model code is also compiled as the Linux dynamic base that simulation calculation program can be used;
Step (3): in the process of transient stability emulation, at any generator node, the self-defining excitation system model of access step (1); PSASP analogue system is called self-defining excitation system, and the self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and completes the emulation of whole electrical networks, realizes the excitation system emulation under electrical network background.
The concrete steps of described step (2) are:
Step (2-1): the input/output signal type of the self-defining excitation system model of agreement MATLAB is one-dimension array, the input signal name of the self-defining excitation system model of MATLAB is called ADPSSIN, and the output signal name of the self-defining excitation system model of MATLAB is called ADPSSOU;
Step (2-2): require to write the self-defining excitation system model interface of MATLAB program according to emulation interface, the input signal ADPSSIN that the output of PSASP simulated program is put into the self-defining excitation system model of MATLAB, is input to PSASP analogue system by the output signal ADPSSOU of self-defining MATLAB excitation system model; Described emulation interface requires to comprise input and output definition information in the nodal information of input and output definition information in PSASP, excitation system place generator and MATLAB.
Step (2-3): write make template file, control compilation process, under Linux environment, self-defining MATLAB excitation system model code, MATLAB interface routine are woven together, generate dynamic base;
Step (2-4): coding, code file is uploaded, controlled compiling, downloads compilation process information and be shown to user in MATLAB command window.
The concrete steps of described step (3) are:
Step (3-1): PSASP analogue system is responsible for the overall emulation of electrical network and process control;
The self-defining excitation system model of step (3-2): MATLAB is called by PSASP analogue system, is responsible for the emulation of opertaing device in electrical network;
The self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and has realized the excitation system self-definition model emulation under the large electrical network background of reality.
The excitation system analogue system of MATLAB self-definition model and PSASP associative simulation, taking the PSASP analogue system based on actual electric network model as platform, build the excitation system model consistent with actual device by the graphical modeling function of MATLAB program, realize the excitation system emulation based under actual electric network background by the associative simulation of PSASP analogue system and MATLAB model; Comprise:
Utilize MATLAB to set up the module of the self-definition model of the excitation system tallying with the actual situation: in the Simulink of MATLAB environment, to utilize the model bank of MATLAB, the self-defined module of setting up realistic excitation system model;
Use Real-Time Workshop module code in MATLAB automatically to generate, be C code self-defining MATLAB excitation system model conversation, according to the requirement of emulation interface, generation model code is also compiled as the module of the Linux dynamic base that simulation calculation program can use;
In the process of transient stability emulation, at any generator node, the self-defining excitation system model of access step (1); PSASP analogue system is called self-defining excitation system, and the self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and completes the emulation of whole electrical networks, realizes the module of the excitation system emulation under electrical network background.
In described use MATLAB, Real-Time Workshop module code generates automatically, be C code self-defining MATLAB excitation system model conversation, according to the requirement of emulation interface, generation model code the module that is compiled as the Linux dynamic base that simulation calculation program can use comprise:
The module that the input/output signal type of the self-defined excitation system model of agreement MATLAB is one-dimension array, the input signal name of the self-defining excitation system model of MATLAB is called ADPSSIN, and the output signal name of the self-defining excitation system model of MATLAB is called ADPSSOU;
Require to write the self-defining excitation system model interface of MATLAB program according to emulation interface, the output of PSASP simulated program is put into the input signal ADPSSIN of the self-defining excitation system model of MATLAB, the output signal ADPSSOU of self-defining MATLAB excitation system model is input to the module of PSASP analogue system; Described emulation interface requires to comprise input and output definition information, the excitation system place generator nodal information in PSASP, input and output definition information in MATLAB.
Write make template file, control compilation process, under Linux environment, self-defining MATLAB excitation system model code, MATLAB interface routine are woven together, generate the module of dynamic base;
Coding, code file is uploaded, is controlled compiling, download compilation process information and in MATLAB command window, is shown to user's module.
Described in the process of transient stability emulation, at any generator node, the self-defining excitation system model of access step (1); PSASP analogue system is called self-defining excitation system, and the self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and completes the emulation of whole electrical networks, realizes the module of the excitation system emulation under electrical network background, comprising:
PSASP analogue system is responsible for the module of the overall emulation of electrical network and process control;
The self-defining excitation system model of MATLAB is called by PSASP analogue system, is responsible for the module of the emulation of opertaing device in electrical network;
The self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and realizes the module of the excitation system self-definition model emulation under the large electrical network background of reality.
The beneficial effect of this patent is:
1 has realized the combination of excitation system self-definition model and actual Bulk power system simulation easily.
2 can complete the various excitation system tests under generator zero load, load behavior, the particularly test under various extreme conditions, the dynamic behaviour of particular rack excitation system in the situation that again can simulation system breaks down, to the performance of thoroughly evaluating excitation system provide effectively, means easily.
3 by the self-defined excitation system model of MATLAB program generation equality circuit actual conditions.MATLAB has powerful mathematical computations and Engineering Simulation function, uses the functional modules such as its built-in electric system simulation tool box, control system tool box, Matlab DSPToolBox, can build easily the model of various force devices and control system thereof.Use the code automatic generation function of Real-Time Workshop module in MATLAB, MATLAB mathematical model can be converted into C code, depart from MATLAB running software, thereby greatly improved the simulation velocity of digital model, and a kind of and approach other analogue system interface is provided.In electromechanical transient simulation system, provide and the interface of MATLAB digital model, the means that can expand dynamic element or control device digital model, improve the model processing power of analogue system.According to the mathematical model of excitation system to be studied and parameter thereof, under MATLAB program environment, set up its detailed model.Can be in any generator node, the excitation system that access is simulated by MATLAB simulated program.Can make full use of the resource of MATLAB and emulation tool thereof, expansion simulation analysis ability.
4PSASP emulation master routine is responsible for the overall emulation of electrical network and process control, and MATLAB model is called by simulated program, is responsible for the emulation of excitation system in electrical network.The external model of Calling MATLAB in transient stability emulation, first in the Simulink environment requiring at MATLAB, put up excitation model, then the MATLAB model ACG generation model code providing by PSASP, is compiled as the operable dynamic base of simulation calculation program.PSASP emulation master routine and the parallel computation of MATLAB model program, complete the emulation of whole electrical networks, realized excitation system self-definition model emulation under the large electrical network background of reality.
Brief description of the drawings
Fig. 1 is method flow diagram of the present invention;
Fig. 2 is the method flow diagram of step of the present invention (2);
The interface of Fig. 3 electromechanical transient simulation system PSASP and MATLAB;
Fig. 4 MATLAB model code generative process schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, the present invention is taking the PSASP procedure simulation system based on actual electric network model as platform, build the various field regulator models consistent with actual device by the graphical modeling function of MATLAB program, realize the excitation system emulation based under actual electric network background by the associative simulation of PSASP program and MATLAB program.Both the various excitation systems test under generator idle condition can be completed, and the test under the test, particularly various extreme conditions of various operating conditions after set grid-connection can be realized again.
First link of the method is that excitation system self-definition model is set up.Utilize the model bank of MATLAB program, self-definedly set up realistic excitation system model.
Second link of the method is that MATLAB model code generates automatically.The target that model code generates is the requirement according to emulation interface, and generation model code is also compiled as the operable Linux dynamic base of PSASP simulation calculation program.On Windows, generate the code of available compiling under Linux, and be automatically uploaded to Linux machine, complete compilation process, under Linux, generate dynamic base.This link comprises following several step (see figure 2):
1) the input/output signal type of agreement model is one-dimension array, and input signal name is called ADPSSIN, and output signal name is called ADPSSOU.
2) require to write model interface program according to emulation interface, the output of PSASP simulated program is put into mode input signal ADPSSIN, the output ADPSSOU of model is input to PSASP analogue system.
3) write make template file, control compilation process, can under Linux environment, model code, interface routine be woven together, generate dynamic base.
4) coding, code file is uploaded, is controlled compiling, downloads compilation process information, in MATLAB command window, is shown to user.
The 3rd link of the method is the excitation system emulation realizing under electrical network background.PSASP emulation master routine is responsible for the overall emulation of electrical network and process control, and MATLAB model is called by simulated program, is responsible for the emulation of excitation system to be studied.The external model of Calling MATLAB in transient stability emulation, PSASP emulation master routine and the parallel computation of MATLAB model program, complete the emulation of whole electrical networks, realized the excitation system self-definition model emulation under the large electrical network background of reality.
As shown in Figure 3,1.MATLAB model program module 1, by definition input and output array, is determined the data message that need to exchange by interface.
2. electromechanical transient simulation system PSASP module 2 is passed through in " parallel setting " menu, to select " external MATALAB ", the genset at the data message that definition need to exchange by interface and selection excitation system place.PSASP is the external model of Calling MATLAB in transient stability emulation, realizes message exchange between the two, and PSASP emulation master routine and the parallel computation of MATLAB model program realize the excitation system self-definition model emulation under the large electrical network background of reality.
As shown in Figure 4,1. MATLAB mathematical model is converted into C code.
2. generate the make template file of controlling compilation process.
3. model code, interface routine are compiled, generate dynamic base.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendments that creative work can make or distortion still in protection scope of the present invention.
Claims (6)
- The excitation system emulation mode of 1.MATLAB self-definition model and PSASP associative simulation, it is characterized in that, taking the PSASP analogue system based on actual electric network model as platform, build the excitation system model consistent with actual device by the graphical modeling function of MATLAB program, realize the excitation system emulation based under actual electric network background by the associative simulation of PSASP analogue system and MATLAB model; Concrete steps are as follows:Step (1): utilize MATLAB to set up the self-definition model of the excitation system tallying with the actual situation: in the Simulink of MATLAB environment, utilize the model bank of MATLAB, set up realistic excitation system model with graphical modeling is function user-defined;Step (2): use Real-Time Workshop module code in MATLAB automatically to generate, be C code self-defining MATLAB excitation system model conversation, according to the requirement of emulation interface, generation model code is also compiled as the Linux dynamic base that simulation calculation program can be used;Step (3): in the process of transient stability emulation, at any generator node, the self-defining excitation system model of access step (1); PSASP analogue system is called self-defining excitation system, and the self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and completes the emulation of whole electrical networks, realizes the excitation system emulation under electrical network background.
- 2. the excitation system emulation mode of MATLAB self-definition model as claimed in claim 1 and PSASP associative simulation, is characterized in that, the concrete steps of described step (2) are:Step (2-1): the input/output signal type of the self-defining excitation system model of agreement MATLAB is one-dimension array, the input signal name of the self-defining excitation system model of MATLAB is called ADPSSIN, and the output signal name of the self-defining excitation system model of MATLAB is called ADPSSOU;Step (2-2): require to write the self-defining excitation system model interface of MATLAB program according to emulation interface, the input signal ADPSSIN that the output of PSASP simulated program is put into the self-defining excitation system model of MATLAB, is input to PSASP analogue system by the output signal ADPSSOU of self-defining MATLAB excitation system model; Described emulation interface requires to comprise input and output definition information in input and output definition information, excitation system place generator nodal information and the MATLAB in PSASP;Step (2-3): write make template file, control compilation process, under Linux environment, self-defining MATLAB excitation system model code, MATLAB interface routine are woven together, generate dynamic base;Step (2-4): coding, code file is uploaded, controlled compiling, downloads compilation process information and be shown to user in MATLAB command window.
- 3. the excitation system emulation mode of MATLAB self-definition model as claimed in claim 1 and PSASP associative simulation, is characterized in that, the concrete steps of described step (3) are:Step (3-1): PSASP analogue system is responsible for the overall emulation of electrical network and process control;The self-defining excitation system model of step (3-2): MATLAB is called by PSASP analogue system, is responsible for the emulation of generator excited system to be studied;The self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and has realized the excitation system self-definition model emulation under the large electrical network background of reality.
- 4. the applied system of excitation system emulation mode of the MATLAB self-definition model as described in above-mentioned arbitrary claim and PSASP associative simulation, it is characterized in that, taking the PSASP analogue system based on actual electric network model as platform, build the excitation system model consistent with actual device by the graphical modeling function of MATLAB program, realize the excitation system emulation based under actual electric network background by the associative simulation of PSASP analogue system and MATLAB self-definition model; Comprise:Utilize MATLAB to set up the module of the self-definition model of the excitation system tallying with the actual situation: in the Simulink of MATLAB environment, to utilize the model bank of MATLAB, by the function user-defined module of setting up realistic excitation system model of graphical modeling;Use Real-Time Workshop module code in MATLAB automatically to generate, be C code self-defining MATLAB excitation system model conversation, according to the requirement of emulation interface, generation model code is also compiled as the module of the Linux dynamic base that simulation calculation program can use;In the process of transient stability emulation, at any generator node, the self-defining excitation system model of access step (1); PSASP analogue system is called self-defining excitation system, and the self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and completes the emulation of whole electrical networks, realizes the module of the excitation system emulation under electrical network background.
- 5. system as claimed in claim 4, it is characterized in that, in described use MATLAB, Real-Time Workshop module code generates automatically, be C code self-defining MATLAB excitation system model conversation, according to the requirement of emulation interface, generation model code the module that is compiled as the Linux dynamic base that simulation calculation program can use comprise:The module that the input/output signal type of the self-defining excitation system model of agreement MATLAB is one-dimension array, the input signal name of the self-defining excitation system model of MATLAB is called ADPSSIN, and the output signal name of the self-defining excitation system model of MATLAB is called ADPSSOU;Require to write the self-defining excitation system model interface of MATLAB program according to emulation interface, the output of PSASP simulated program is put into the input signal ADPSSIN of the self-defining excitation system model of MATLAB, the output signal ADPSSOU of self-defining MATLAB excitation system model is input to the module of PSASP analogue system; Described emulation interface requires to comprise input and output definition information in input and output definition information, excitation system place generator nodal information and the MATLAB in PSASP;Write make template file, control compilation process, under Linux environment, self-defining MATLAB excitation system model code, MATLAB interface routine are woven together, generate the module of dynamic base;Coding, code file is uploaded, is controlled compiling, download compilation process information and in MATLAB command window, is shown to user's module.
- 6. system as claimed in claim 4, is characterized in that, described in the process of transient stability emulation, at any generator node, the self-defining excitation system model of access step (1); PSASP analogue system is called self-defining excitation system, and the self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and completes the emulation of whole electrical networks, realizes the module of the excitation system emulation under electrical network background, comprising:PSASP analogue system is responsible for the module of the overall emulation of electrical network and process control;The self-defining excitation system model of MATLAB is called by PSASP analogue system, is responsible for the module of generator excited system emulation to be studied in electrical network;The self-defining excitation system Model Based Parallel of PSASP analogue system and MATLAB calculates, and realizes the module of the excitation system self-definition model emulation under the large electrical network background of reality.
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| CN105929711A (en) * | 2016-04-25 | 2016-09-07 | 西北工业大学 | Construction method for electromechanical actuator reference model database |
| CN105929711B (en) * | 2016-04-25 | 2018-08-17 | 西北工业大学 | A kind of construction method of electromechanical actuator reference model database |
| CN107193628A (en) * | 2017-04-07 | 2017-09-22 | 万达百汇科技（深圳）有限公司 | Payment terminal application simulation method and apparatus |
| CN108388722A (en) * | 2018-02-08 | 2018-08-10 | 广东电网有限责任公司电网规划研究中心 | A kind of electric system integrated simulation platform and application method |
| CN111221520A (en) * | 2019-12-17 | 2020-06-02 | 特变电工西安柔性输配电有限公司 | Power system controller control algorithm generation method, equipment and readable storage medium |
| CN111221520B (en) * | 2019-12-17 | 2023-03-21 | 特变电工西安柔性输配电有限公司 | Power system controller control algorithm generation method and device and readable storage medium |
| CN114676585A (en) * | 2022-04-08 | 2022-06-28 | 南方电网科学研究院有限责任公司 | Method and device for optimizing control protection real-time digital simulation model of new energy unit |
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Application publication date: 20140723 |