CN102540907B - Parallel digital and analog integrated simulation interface and physical simulation subsystem interface - Google Patents
Parallel digital and analog integrated simulation interface and physical simulation subsystem interface Download PDFInfo
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Abstract
本发明提出一种并联型数模综合仿真系统接口，包括：基于并联型整流器和跟随器的物理仿真子系统接口、测量单元、数字仿真子系统接口以及控制系统；其中，并联型的物理仿真子系统接口连接三相电源和物理仿真子系统；用于测量物理仿真子系统端口电压和电流的测量单元，与数字仿真子系统接口连接；数字仿真子系统接口与数字仿真子系统连接；数字仿真子系统与控制系统连接。可以将物理仿真子系统和数字仿真子系统综合起来，构成整个电力系统的实时仿真模型，从而充分发挥物理仿真和数字仿真的优势。本发明还提出一种物理仿真子系统接口。
The present invention proposes a parallel digital-analog comprehensive simulation system interface, including: a physical simulation subsystem interface based on a parallel rectifier and a follower, a measurement unit, a digital simulation subsystem interface, and a control system; wherein, the parallel physical simulation subsystem The system interface is connected to the three-phase power supply and the physical simulation subsystem; the measurement unit used to measure the port voltage and current of the physical simulation subsystem is connected to the interface of the digital simulation subsystem; the interface of the digital simulation subsystem is connected to the digital simulation subsystem; the digital simulation subsystem The system is connected with the control system. The physical simulation subsystem and the digital simulation subsystem can be integrated to form a real-time simulation model of the entire power system, thereby giving full play to the advantages of physical simulation and digital simulation. The invention also proposes a physical simulation subsystem interface.
Description
Technical field
The present invention relates to digital and analogue signals emulation field, be specifically related to parallel connection type digital-to-analogue comprehensive simulating system interface and physical simulation subsystem interface.
Background technology
Large-scale development and utilization along with regenerative resources such as wind energy, sun power, consideration is linked into large electrical network by distributed power source, energy storage device, energy converter distributed generating energy supplying system with the form of microgrid and is incorporated into the power networks, support each other with large electrical network, thereby give full play to the usefulness of distributed power generation energy supplying system.Due to the introducing of micro-grid system, need to carry out deep research with the operation characteristic being incorporated into the power networks to microgrid and interaction mechanism and the only network operation of micro-grid system of large electrical network.Power system real-time simulation technology is the important means of carrying out Operation of Electric Systems characteristic research and device to test, aspect a lot of, there is irreplaceable effect, therefore, construction has the real-time emulation system of renewable energy power generation micro-grid system and the large electrical network that accesses thereof, become research microgrid and with the inevitable requirement of large electrical network interaction mechanism.Use at present physical simulation system or Digital Simulation System to study interaction mechanism and the only network operation of micro-grid system and the operation characteristic being incorporated into the power networks of microgrid and large electrical network.
Physical simulation has been considered complicated uncertain factor such as non-linear grade, therefore can simulate more exactly the dynamic process of electric system, the phenomenon it be unclear that for mechanism and the research of novel electric power apparatus are very convenient, but its modeling process is complicated, time and capital consumption are large, difficulty of parameter tuning, transplantability and compatibility are restricted;
Digital Simulation adopts the present computer technology, control technology, combines large software and complex hardware, and its modeling speed is fast, and parameter adjustment is convenient, can carry out emulation to large system, but unsatisfactory for the emulation of novel equipment and control strategy.
Summary of the invention
The object of the invention is to propose a kind of parallel connection type digital-to-analogue comprehensive simulating system interface, this interface can integrate physical simulation subsystem and Digital Simulation subsystem, form the Real-Time Model of whole electric system, thereby give full play to the advantage of physical simulation and Digital Simulation.
For achieving the above object, the scheme of employing:
A parallel connection type digital-to-analogue comprehensive simulating system interface, comprising: physical simulation subsystem interface, measuring unit, Digital Simulation subsystem interface and control system;
Wherein, described physical simulation subsystem interface comprises input transformer, 3 groups of parallel connection type rectifiers, 3 groups of parallel connection type followers; A winding termination three-phase supply of described input transformer, the Secondary Winding of described input transformer is divided into 3 groups; Every group of parallel connection type rectifier comprises M three phase full bridge; Every group of parallel connection type follower comprises N single-phase full bridge; Wherein, M, N are positive integer;
Secondary Winding does not on the same group connect not the interchange end of the three phase full bridge in parallel connection type rectifier on the same group; In same parallel connection type rectifier, the first output terminal of three phase full bridge also connects and the second output terminal connecing; The first DC terminal the first output terminal of the three phase full bridge of different parallel connection type rectifiers and that connect the single-phase full bridge of the different parallel connection type followers of end connection; The second DC terminal the second output terminal of the three phase full bridge of different parallel connection type rectifiers and that connect the single-phase full bridge of the different parallel connection type followers of end connection;
First of the single-phase full bridge of same parallel connection type follower exchanges to be held and connects; Second of all single-phase full bridges exchange to be held and connects; Each is organized the first interchange end and that connect end, the second interchange end of single-phase full bridge and connects end and is connected with physical simulation subsystem;
For measuring the described measuring unit of described physical simulation subsystem port voltage and electric current, be connected with described Digital Simulation subsystem interface; The voltage and current information that described Digital Simulation subsystem interface is measured according to described measuring unit is controlled output state, and the output terminal of described Digital Simulation subsystem interface is connected with Digital Simulation subsystem; Receive the described control system of the voltage and current information of described Digital Simulation subsystem output terminal, according to the described voltage and current information receiving, control described physical simulation subsystem interface.
The present invention proposes a kind of parallel connection type digital-to-analogue comprehensive simulating system interface, this interface is based on parallel connection type rectifier and follower, by control system, receive the voltage and current signal of Digital Simulation subsystem, control the duty of physical simulation subsystem interface, thereby reach the effect that realizes physical simulation subsystem boundary condition; By measuring unit, obtain the electric current and voltage of physical simulation subsystem port, the electric current and voltage then recording according to measuring unit carries out Digital Simulation, thereby reaches the effect that realizes Digital Simulation subsystem boundary condition; Thereby physical simulation subsystem and Digital Simulation subsystem can be integrated, form the Real-Time Model of whole electric system, thereby give full play to the advantage of physical simulation and Digital Simulation.
The present invention also proposes a kind of physical simulation subsystem interface, comprising: input transformer, 3 groups of parallel connection type rectifiers, 3 groups of parallel connection type followers; A winding termination three-phase supply of described input transformer, the Secondary Winding of described input transformer is divided into 3 groups; Every group of parallel connection type rectifier comprises M three phase full bridge; Every group of parallel connection type follower comprises N single-phase full bridge; Wherein, M, N are positive integer;
Secondary Winding does not on the same group connect not the interchange end of the three phase full bridge in parallel connection type rectifier on the same group; In same parallel connection type rectifier, the first output terminal of three phase full bridge also connects and the second output terminal connecing; The first DC terminal the first output terminal of the three phase full bridge of different parallel connection type rectifiers and that connect the single-phase full bridge of the different parallel connection type followers of end connection; The second DC terminal the second output terminal of the three phase full bridge of different parallel connection type rectifiers and that connect the single-phase full bridge of the different parallel connection type followers of end connection;
First of the single-phase full bridge of same parallel connection type follower exchanges to be held and connects; Second of all single-phase full bridges exchange to be held and connects; Each is organized the first interchange end and that connect end, the second interchange end of single-phase full bridge and connects end and is connected with physical simulation subsystem.
Accompanying drawing explanation
Fig. 1 is a preferred structure schematic diagram of parallel connection type digital-to-analogue comprehensive simulating system interface in the present invention;
Fig. 2 is another preferred structure schematic diagram of parallel connection type digital-to-analogue comprehensive simulating system interface in the present invention.
Embodiment
For ease of understanding, in connection with accompanying drawing, set forth.
Please refer to Fig. 1, the present invention proposes a kind of parallel connection type digital-to-analogue comprehensive simulating system interface, comprising: physical simulation subsystem interface T1, measuring unit T2, Digital Simulation subsystem interface T4 and control system T6;
Wherein, physical simulation subsystem interface T1 comprises 2,3 groups of parallel connection type followers 4 of 1,3 groups of parallel connection type rectifiers of input transformer; A winding termination three-phase supply of input transformer 1, the Secondary Winding of input transformer 1 is divided into 3 groups; Every group of parallel connection type rectifier 2 comprises M three phase full bridge 3; Every group of parallel connection type follower 4 comprises N single-phase full bridge 5; Wherein, M, N are positive integer;
Secondary Winding does not on the same group connect not the interchange end of the three phase full bridge 3 in parallel connection type rectifier 2 on the same group; In same parallel connection type rectifier 2, the first output terminal of three phase full bridge 3 also connects and the second output terminal connecing; The first DC terminal the first output terminal of the three phase full bridge 3 of different parallel connection type rectifiers 2 and that connect the single-phase full bridge 5 of the different parallel connection type followers 4 of end connection; The second DC terminal the second output terminal of the three phase full bridge 3 of different parallel connection type rectifiers 2 and that connect the single-phase full bridge 5 of the different parallel connection type followers 4 of end connection;
First of the single-phase full bridge 5 of same parallel connection type follower 4 exchanges to be held and connects; Second of all single-phase full bridges 5 exchange to be held and connects; Each is organized the first interchange end and that connect end, the second interchange end of single-phase full bridge 5 and connects end and is connected with physical simulation subsystem;
For measuring the measuring unit T2 of physical simulation subsystem port voltage and electric current, T1 is connected with Digital Simulation subsystem interface; Digital Simulation subsystem interface T4 is connected with Digital Simulation subsystem; The voltage and current information that Digital Simulation subsystem interface T4 measures according to measuring unit T2 is controlled self output state; The output terminal of Digital Simulation subsystem provides voltage and current information to control system T6, and control system T6 controls the duty of physical simulation subsystem interface T1 according to the voltage and current information of the Digital Simulation subsystem output receiving.
The present invention proposes a kind of parallel connection type digital-to-analogue comprehensive simulating system interface, this system interface is based on parallel connection type rectifier and follower, by control system, receive the voltage and current signal of Digital Simulation subsystem, control the duty of physical simulation subsystem interface, thereby reach the effect that realizes physical simulation subsystem boundary condition; By measuring unit, obtain the electric current and voltage of physical simulation subsystem port, the electric current and voltage then recording according to measuring unit carries out Digital Simulation, thereby reaches the effect that realizes Digital Simulation subsystem boundary condition; Thereby physical simulation subsystem and Digital Simulation subsystem can be integrated, form the Real-Time Model of whole electric system, thereby give full play to the advantage of physical simulation and Digital Simulation.
For filtering HF switch harmonic wave, can improve above-described embodiment, referring to Fig. 2, physical simulation subsystem interface T1 also comprises: three-phase output filter 6,
That the input end of three-phase output filter 6 and first of each group single-phase full bridge 5 exchange end and connect end and all single-phase full bridges 5 second that exchange end and connect end and be connected, the output terminal of three-phase output filter 6 is connected with physical simulation subsystem.
Wherein, when control system is controlled physical simulation subsystem interface according to the voltage and current information of Digital Simulation subsystem output, utilize the voltage of Digital Simulation subsystem output to adopt voltage-tracing algorithm to control physical simulation subsystem interface output voltage; Utilize the electric current of Digital Simulation subsystem output to adopt current tracking algorithm to control physical simulation subsystem interface output current.
Wherein, the value of the number M of three phase full bridge and the number N of single-phase full bridge can be unequal, makes the design of parallel connection type rectifier and parallel connection type follower more flexible.
The present invention also proposes a kind of physical simulation subsystem interface concrete structure and can, referring to Fig. 1 or Fig. 2, repeat no more herein.
In the present invention, the physical simulation subsystem interface based on parallel connection type; Digital Simulation subsystem interface is in the lower realization of realtime digital simulation platform (RTDS), and RTDS platform has controlled voltage source and controlled current flow source module, and its controlled quentity controlled variable can be external input signal; The signal input part of Digital Simulation subsystem interface receives physical simulation subsystem port voltage and the magnitude of current measuring, and output port is connected with Digital Simulation subsystem.To physical simulation subsystem interface device, its control system receives the port voltage current information of Digital Simulation subsystem output, and adopt voltage-tracing or current tracking algorithm to control the duty of the full control switching device of shunt voltage type current transformer, to reach following object: port voltage or current waveform that the voltage of control current transformer output AC side or current waveform provide with Digital Simulation subsystem are identical, thereby reach the effect that realizes physical simulation subsystem boundary condition.Digital Simulation subsystem interface simple controlled voltage source and current source in RTDS platform form, controlled voltage source and current source have ready-made module in RTDS, the controlled quentity controlled variable of its controlled current source and controlled voltage source is physical simulation subsystem port current and the voltage that the signal input part of Digital Simulation subsystem interface receives, when needs switch, outside switch-over control signal changes, and the switch of controlling in RTDS is switched; Concrete: to receive voltage signal, gating controlled voltage source control the output of this controlled voltage source according to the voltage signal receiving; Receive current signal, gating controlled current source control the output of this controlled current source according to the current signal receiving; To reach following object: the curtage waveform of control figure simulation subsystem output AC side is identical with the curtage waveform that physical simulation subsystem port measures, thereby reaches the effect that realizes Digital Simulation subsystem boundary condition.
Above embodiment of the present invention, does not form limiting the scope of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present invention.
Claims (10)
1. a parallel connection type digital-to-analogue comprehensive simulating system interface, is characterized in that, comprising: physical simulation subsystem interface, measuring unit, Digital Simulation subsystem interface and control system;
Wherein, described physical simulation subsystem interface comprises input transformer, 3 groups of parallel connection type rectifiers, 3 groups of parallel connection type followers; A winding termination three-phase supply of described input transformer, the Secondary Winding of described input transformer is divided into 3 groups; Every group of parallel connection type rectifier comprises M three phase full bridge; Every group of parallel connection type follower comprises N single-phase full bridge; Wherein, M, N are positive integer;
Secondary Winding does not on the same group connect not the interchange end of the three phase full bridge in parallel connection type rectifier on the same group; In same parallel connection type rectifier, the first output terminal of three phase full bridge also connects and the second output terminal connecing; The first DC terminal the first output terminal of the three phase full bridge of different parallel connection type rectifiers and that connect the single-phase full bridge of the different parallel connection type followers of end connection; The second DC terminal the second output terminal of the three phase full bridge of different parallel connection type rectifiers and that connect the single-phase full bridge of the different parallel connection type followers of end connection;
First of the single-phase full bridge of same parallel connection type follower exchanges to be held and connects; Second of the single-phase full bridge of all single-phase full bridges exchanges to be held and connects; Each is organized the first interchange end and that connect end, the second interchange end of single-phase full bridge and connects end and is connected with physical simulation subsystem;
For measuring the described measuring unit of described physical simulation subsystem port voltage and electric current, be connected with described Digital Simulation subsystem interface; The voltage and current information that described Digital Simulation subsystem interface is measured according to described measuring unit is controlled output state, and the output terminal of described Digital Simulation subsystem interface is connected with Digital Simulation subsystem; Receive the described control system of the voltage and current information of described Digital Simulation subsystem output, according to the described voltage and current information receiving, control described physical simulation subsystem interface.
2. parallel connection type digital-to-analogue comprehensive simulating system interface according to claim 1, is characterized in that, described physical simulation subsystem interface also comprises: three-phase output filter,
That the input end of described three-phase output filter and first of each group single-phase full bridge exchange end and connect end and all single-phase full bridges second that exchange end and connect end and be connected, the output terminal of described three-phase output filter is connected with described physical simulation subsystem.
3. parallel connection type digital-to-analogue comprehensive simulating system interface according to claim 1, is characterized in that,
When described control system is controlled described physical simulation subsystem interface according to the voltage and current information of described Digital Simulation subsystem output, utilize the voltage of described Digital Simulation subsystem output to adopt voltage-tracing algorithm to control described physical simulation subsystem interface output voltage; Utilize the electric current of described Digital Simulation subsystem output to adopt current tracking algorithm to control described physical simulation subsystem interface output current.
4. parallel connection type digital-to-analogue comprehensive simulating system interface according to claim 1, is characterized in that, the voltage and current information that described Digital Simulation subsystem interface is measured according to described measuring unit is controlled output state and comprised:
Described Digital Simulation subsystem interface comprises controlled current source and controlled voltage source;
When described Digital Simulation subsystem interface receives the voltage signal that described measuring unit sends, gating controlled voltage source is also controlled the output of controlled voltage source;
When described Digital Simulation subsystem interface receives the current signal that described measuring unit sends, gating controlled current source is also controlled the output of controlled current source.
5. according to the parallel connection type digital-to-analogue comprehensive simulating system interface described in claim 1 to 4 any one, it is characterized in that, the value of described M and described N is unequal.
6. according to the parallel connection type digital-to-analogue comprehensive simulating system interface described in claim 1 to 4 any one, it is characterized in that, described M equates with the value of described N.
7. a physical simulation subsystem interface, is characterized in that, comprising: input transformer, 3 groups of parallel connection type rectifiers, 3 groups of parallel connection type followers; A winding termination three-phase supply of described input transformer, the Secondary Winding of described input transformer is divided into 3 groups; Every group of parallel connection type rectifier comprises M three phase full bridge; Every group of parallel connection type follower comprises N single-phase full bridge; Wherein, M, N are positive integer;
Secondary Winding does not on the same group connect not the interchange end of the three phase full bridge in parallel connection type rectifier on the same group; In same parallel connection type rectifier, the first output terminal of three phase full bridge also connects and the second output terminal connecing; The first DC terminal the first output terminal of the three phase full bridge of different parallel connection type rectifiers and that connect the single-phase full bridge of the different parallel connection type followers of end connection; The second DC terminal the second output terminal of the three phase full bridge of different parallel connection type rectifiers and that connect the single-phase full bridge of the different parallel connection type followers of end connection;
First of the single-phase full bridge of same parallel connection type follower exchanges to be held and connects; Second of all single-phase full bridges exchange to be held and connects; Each is organized the first interchange end and that connect end, the second interchange end of single-phase full bridge and connects end and is connected with physical simulation subsystem.
8. physical simulation subsystem interface according to claim 7, is characterized in that, also comprises: three-phase output filter,
That the input end of described three-phase output filter and first of each group single-phase full bridge exchange end and connect end and all single-phase full bridges second that exchange end and connect end and be connected, the output terminal of described three-phase output filter is connected with described physical simulation subsystem.
9. according to the physical simulation subsystem interface described in claim 7 or 8, it is characterized in that, the value of described M and described N is unequal.
10. according to the physical simulation subsystem interface described in claim 7 or 8, it is characterized in that, described M equates with the value of described N.
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| CN103559331B (en) * | 2013-10-11 | 2016-06-01 | 华中科技大学 | Current source type digital-to-analogue synthetic simulation environment interface and physical simulation subsystem interface |
| CN105739324A (en) * | 2016-01-27 | 2016-07-06 | 东南大学 | Electric power cyber-physical system real-time emulation platform and method thereof |
| CN110471309A (en) * | 2019-07-26 | 2019-11-19 | 西北工业大学 | For power hardware loop system emulation mode |
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| DE69612896T2 (en) * | 1995-03-09 | 2001-10-25 | Toyota Jidosha K.K., Toyota | System and method of control using an equivalent circuit used as a reference |
| KR100726024B1 (en) * | 2005-12-30 | 2007-06-08 | 한국전기연구원 | System linkage test apparatus and method of inverter for renewable energy power system using real-time simulator of power system |
| CN101281463A (en) * | 2007-12-24 | 2008-10-08 | 国网直流工程建设有限公司 | High voltage direct current transmission, extra-high voltage direct current transmission general-purpose control model developing method |
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| DE69612896T2 (en) * | 1995-03-09 | 2001-10-25 | Toyota Jidosha K.K., Toyota | System and method of control using an equivalent circuit used as a reference |
| KR100726024B1 (en) * | 2005-12-30 | 2007-06-08 | 한국전기연구원 | System linkage test apparatus and method of inverter for renewable energy power system using real-time simulator of power system |
| CN101281463A (en) * | 2007-12-24 | 2008-10-08 | 国网直流工程建设有限公司 | High voltage direct current transmission, extra-high voltage direct current transmission general-purpose control model developing method |
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Address after: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Patentee after: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. Patentee after: HUAZHONG University OF SCIENCE AND TECHNOLOGY Address before: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. Patentee before: HUAZHONG University OF SCIENCE AND TECHNOLOGY |
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Effective date of registration: 20210706 Address after: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Patentee after: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. Address before: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. Patentee before: HUAZHONG University OF SCIENCE AND TECHNOLOGY |