CN104123172A - Double-fed wind power simulation system and circuit simulation module thereof - Google Patents
Double-fed wind power simulation system and circuit simulation module thereof Download PDFInfo
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- CN104123172A CN104123172A CN201410341392.8A CN201410341392A CN104123172A CN 104123172 A CN104123172 A CN 104123172A CN 201410341392 A CN201410341392 A CN 201410341392A CN 104123172 A CN104123172 A CN 104123172A
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Abstract
The invention discloses a double-fed wind power simulation system and a circuit simulation module thereof, and belongs to the technical field of power. The system solves the technical problem that an existing double-fed wind power simulation system is low in simulation precision. The circuit simulation module of the double-fed wind power simulation system comprises a first processor and a second processor, the first processor is a parallel processor and models simulated in the first processor include a power grid side converter model, a power generator side converter model, a double-fed motor model and a speed sensor model. The circuit simulation module can be used for the double-fed wind power simulation system.
Description
Technical field
The present invention relates to power technology field, specifically, relate to a kind of double-fed fan motor analogue system and circuit-simulation module thereof.
Background technology
The variable-speed constant-frequency wind power generation system (abbreviation double-fed wind power system) of AC excitation double-fed induction motor has the advantages such as cost is low, volume is little, power attenuation is low, is therefore applied very widely.But, double-fed wind power system is during in the face of the special operation condition of electrical network, and such as voltage falls, recovery etc., the parameter such as electric current, magnetic flux of motor all can change on a large scale fast, transient state process is extremely complicated, and the performance of the unsteady flow link to double-fed wind power system will form baptism.Safe and reliable in order to ensure wind generator system, the exploitation of the current-variable controller of double-fed wind power system must be based on strict experimental basis, but due to singularity and the complicacy of double-fed wind power system actual motion environment, so its field adjustable and experimentation cost are very high, and the test period is long.Therefore, set up double-fed fan motor analogue system, the analysis, design and the improvement that can be the current transformer product of double-fed wind power system extend efficient help and foundation.
As shown in Figure 1, the convertor circuit of double-fed wind power system mainly comprises electrical network, grid side output, grid side current transformer, DC link, generator side converter, active crowbar circuit (Crowbar), double feedback electric engine, speed pickup and fans load.In double-fed fan motor semi-matter simulating system, utilize processor that each part mentioned above is set up respectively to mathematical model.But in existing double-fed fan motor semi-matter simulating system, the processing speed of processor is lower, resolves step-length longer, generally all more than 25 microseconds, cause the computing time delay in simulation process longer, reduce the simulation accuracy of whole double-fed fan motor analogue system.
Summary of the invention
The object of the present invention is to provide a kind of double-fed fan motor analogue system and circuit-simulation module thereof, to solve the lower technical matters of simulation accuracy of existing double-fed fan motor analogue system.
The invention provides a kind of circuit-simulation module of double-fed fan motor analogue system, comprise first processor and the second processor, wherein, described first processor is parallel processor;
The model of simulating in described first processor comprises grid side current transformer model, generator side converter model, double feedback electric engine model and speed pickup model.
Preferably, described parallel processor is FPGA.
The model of further, simulating in described the second processor comprises electric network model and fans load model.
In the first implementation, the model of simulating in described the second processor also comprises grid side output model, DC link model and active C rowbar model.
In the second implementation, the model of simulating in described first processor also comprises active Crowbar model;
The model of simulating in described the second processor also comprises grid side output model and DC link model.
In the third implementation, the model of simulating in described first processor also comprises DC link model and active C rowbar model;
The model of simulating in described the second processor also comprises grid side output model.
In the 4th kind of implementation, the model of simulating in described first processor also comprises grid side output model, DC link model and active C rowbar model.
Preferably, described the second processor is serial processor or parallel processor.
The present invention also provides a kind of double-fed fan motor analogue system, comprises controller in kind, input and output modular converter and above-mentioned circuit-simulation module.
The present invention has brought following beneficial effect: in the circuit-simulation module of double-fed fan motor analogue system provided by the invention, utilize parallel processor that processing speed is higher as first processor, simulate the models such as the grid side current transformer model higher to computing delay requirement, generator side converter model, double feedback electric engine model and speed pickup model, to shorten the computing time delay in simulation process, thereby improve the simulation accuracy of double-fed fan motor analogue system.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in instructions, claims and accompanying drawing.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in describing embodiment below, needed accompanying drawing does simple introduction:
Fig. 1 is the schematic diagram of the convertor circuit of double-fed wind power system;
Fig. 2 is the schematic diagram of the circuit-simulation module of the double-fed fan motor analogue system that provides of the embodiment of the present invention one;
Fig. 3 is the schematic diagram of the double-fed fan motor analogue system that provides of the embodiment of the present invention one;
Fig. 4 is the schematic diagram of the double-fed fan motor analogue system that provides of the embodiment of the present invention two;
Fig. 5 is the schematic diagram of the double-fed fan motor analogue system that provides of the embodiment of the present invention three;
Fig. 6 is the schematic diagram of the double-fed fan motor analogue system that provides of the embodiment of the present invention four.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application technology means solve technical matters whereby, and the implementation procedure of reaching technique effect can fully understand and implement according to this.It should be noted that, only otherwise form conflict, each feature in each embodiment and each embodiment in the present invention can mutually combine, and the technical scheme forming is all within protection scope of the present invention.
embodiment mono-:
As shown in Figure 2, the embodiment of the present invention provides a kind of circuit-simulation module of double-fed fan motor analogue system, is specially the circuit board that comprises first processor 11 and the second processor 12.Wherein, first processor 11 is parallel processor, is preferably field programmable gate array (Field Programmable Gate Array is called for short FPGA); The second processor 12 is serial processor.
In the present embodiment, in first processor 11, the model of simulation comprises grid side current transformer model, generator side converter model, double feedback electric engine model and speed pickup model (with reference to Fig. 1).Wherein, grid side current transformer model comprises the model of filter inductance L1; Double feedback electric engine model comprises the model of stator contactor Q2.
In the second processor 12, the model of simulation comprises electric network model, grid side output model, DC link model, active C rowbar model and fans load model (with reference to Fig. 1).Wherein, in electric network model, comprise the analog functuion of the various electrical network special operation conditions such as voltage jump (voltage causing due to various faults falls or voltage raises suddenly etc.), harmonic wave, frequency anomaly; Grid side output model comprises the model of filter capacitor C1, main circuit breaker Q1 and grid side contactor K; DC link model comprises the model in DC support capacitor C, precharge loop and DC chopped-wave loop.
As shown in Figure 3, the embodiment of the present invention further also provides a kind of double-fed fan motor analogue system, comprises foregoing circuit emulation module 10, and input and output modular converter 20 and controller in kind 30.
First processor 11 in circuit-simulation module 10 and the second processor 12 can be by peripheral (Peripheral High Speed at a high speed, be called for short PHS) bus or other cables connection input and output modular converter 20, input and output modular converter 20 can connect controller 30 in kind by the mode such as optical fiber, Ethernet, and controller 30 in kind is for the equipment such as double feedback electric engine, convertor circuit of controlled entity.
Double-fed fan motor analogue system builds mainly for double-fed fan motor controller product, adopts the hardware-in-the-loop simulation mode of hardware in loop.As the term suggests hardware-in-the-loop simulation just refers to that a part is in kind in analogue system, a part is virtual emulation object, is the highest a kind of emulation mode of degree of confidence in all emulation.And hardware is a kind of mode of hardware-in-the-loop simulation in loop, controller is in kind, and controlled device is virtual objects, and this mode is mainly used in controller software hardware design and test, is a kind of mode of saving experimentation cost and shortening the construction cycle.In the embodiment of the present invention, convertor circuit adopts virtual circuit simulation model 10, runs in real-time simulation unit, is used for simulating the convertor circuit of double-fed fan motor.Controller 30 in kind adopts real double-fed fan motor current-variable controller, and its core missions are to complete real-time control according to instruction.Between circuit simulation model 10 and controller in kind 30, realize the real-time, interactive of data by employing input and output modular converter 20.It is carried out to system debug, realize the operation with closed ring of controlled device and controller in kind.
The course of work of this double-fed fan motor analogue system is:
The second processor 12 reads in the output signal of first processor 11, and read in the control signal of controller 30 in kind by input and output modular converter 20, as the input of the second processor 12, calculate the output of the second processor 12 plates according to the model of each several part, output quantity is sent to controller 30 in kind by input and output modular converter 20.First processor 11 reads in the output signal of the second processor 12, and read in the control signal of controller 30 in kind by input and output modular converter 20, as the input of first processor 11, calculate the output of first processor 11 according to the model of each several part, give controller 30 in kind by output quantity by input and output modular converter 20, thereby realize the checking of hardware in loop closed loop.
In double-fed fan motor analogue system and circuit-simulation module thereof that the embodiment of the present invention provides, utilize parallel processor that processing speed is higher as first processor 11, simulate the models such as the grid side current transformer model higher to computing delay requirement, generator side converter model, double feedback electric engine model and speed pickup model, its resolve step-length can reach 10 nanosecond rank, to shorten the computing time delay in simulation process, thereby improve the simulation accuracy of double-fed fan motor analogue system, made double-fed fan motor analogue system can verify accurately controller in kind.
On the other hand, fans load model belongs to mechanical model, and its parameter can not be undergone mutation conventionally, so its data interaction is lower to the requirement of processing speed, also lower to the requirement of computing time delay.In addition, the topological structure of electric network model has polytrope, so higher to the requirement on flexibility of modeling.Therefore, the second processor 12 in the present embodiment adopts serial processor, and its processing speed is relatively low, but program complexity is also lower, programme more flexible, can be used for simulating fans load model, electric network model, and grid side output model, DC link model and active C rowbar model.
Therefore, in the double-fed fan motor analogue system that the embodiment of the present invention provides, the mode that adopts parallel processor and serial processor to combine is carried out mimic channel emulation module, with program complexity and the simulation accuracy of the whole analogue system of balance, thereby can either improve the simulation accuracy of whole system, the complexity that can not make again calling program is too high and cause the poor availability of analogue system.
embodiment bis-:
The present embodiment and embodiment mono-are basic identical, its difference is, as shown in Figure 4, and in the present embodiment, active C rowbar model is simulated in first processor 11 (parallel processor), and not simulation in the second processor 12 (serial processor).
In the present embodiment, utilize parallel processor analogue active Crowbar model, thereby make active C rowbar model also can reach higher processing speed, to reduce its computing time delay, thus the simulation accuracy of raising double-fed fan motor analogue system.
embodiment tri-:
The present embodiment and embodiment mono-are basic identical, its difference is, as shown in Figure 5, and in the present embodiment, active C rowbar model and DC link model are simulated in first processor 11 (parallel processor), and not simulation in the second processor 12 (serial processor).
In the present embodiment, utilize parallel processor analogue active Crowbar model and DC link model, thereby make active C rowbar model and DC link model also can reach higher processing speed, to reduce its computing time delay, thus the simulation accuracy of raising double-fed fan motor analogue system.
embodiment tetra-:
The present embodiment and embodiment mono-are basic identical, its difference is, as shown in Figure 6, in the present embodiment, active C rowbar model, grid side output model and DC link model are simulated in first processor 11 (parallel processor), and not simulation in the second processor 12 (serial processor).
In the present embodiment, utilize parallel processor analogue active Crowbar model, grid side output model and DC link model, thereby make active C rowbar model, grid side output model and DC link model also can reach higher processing speed, to reduce its computing time delay, thus the simulation accuracy of raising double-fed fan motor analogue system.
It should be noted that the second processor in the various embodiments described above all adopts serial processor, for simulating fans load model, electric network model etc.In other embodiments, the second processor also can adopt parallel processor, makes the models such as fans load model, electric network model also can reach higher processing speed, to reduce its computing time delay.
Although embodiment disclosed in this invention as above, the embodiment that described content just adopts for the ease of understanding the present invention, not in order to limit the present invention.Technician in any the technical field of the invention; do not departing under the prerequisite of spirit and scope disclosed in this invention; can do any amendment and variation what implement in form and in details; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
Claims (9)
1. a circuit-simulation module for double-fed fan motor analogue system, is characterized in that, comprises first processor and the second processor, and wherein, described first processor is parallel processor;
The model of simulating in described first processor comprises grid side current transformer model, generator side converter model, double feedback electric engine model and speed pickup model.
2. circuit-simulation module as claimed in claim 1, is characterized in that, described parallel processor is FPGA.
3. circuit-simulation module as claimed in claim 1, is characterized in that, the model of simulating in described the second processor comprises electric network model and fans load model.
4. circuit-simulation module as claimed in claim 1, is characterized in that, the model of simulating in described the second processor also comprises grid side output model, DC link model and active C rowbar model.
5. circuit-simulation module as claimed in claim 1, is characterized in that, the model of simulating in described first processor also comprises active Crowbar model;
The model of simulating in described the second processor also comprises grid side output model and DC link model.
6. circuit-simulation module as claimed in claim 1, is characterized in that, the model of simulating in described first processor also comprises DC link model and active C rowbar model;
The model of simulating in described the second processor also comprises grid side output model.
7. circuit-simulation module as claimed in claim 1, is characterized in that, the model of simulating in described first processor also comprises grid side output model, DC link model and active C rowbar model.
8. circuit-simulation module as claimed in claim 1, is characterized in that, described the second processor is serial processor or parallel processor.
9. a double-fed fan motor analogue system, is characterized in that, comprises controller in kind, input and output modular converter and the circuit-simulation module as described in claim 1 to 8 any one.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108491638A (en) * | 2018-03-26 | 2018-09-04 | 福州大学 | Contactor real running environment semi-physical object simulating system based on data model component library |
| CN110334407A (en) * | 2019-06-12 | 2019-10-15 | 上海交通大学 | Doubly fed induction generator electromagnetical transient emulation method and analogue system based on FPGA |
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| US20070150248A1 (en) * | 2005-12-02 | 2007-06-28 | Derek Chiou | Simulation method |
| CN103400302A (en) * | 2013-07-01 | 2013-11-20 | 国家电网公司 | Risk perception and early warning method and system for cascading failures of wind power base |
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2014
- 2014-07-17 CN CN201410341392.8A patent/CN104123172A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070150248A1 (en) * | 2005-12-02 | 2007-06-28 | Derek Chiou | Simulation method |
| CN103400302A (en) * | 2013-07-01 | 2013-11-20 | 国家电网公司 | Risk perception and early warning method and system for cascading failures of wind power base |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108491638A (en) * | 2018-03-26 | 2018-09-04 | 福州大学 | Contactor real running environment semi-physical object simulating system based on data model component library |
| CN110334407A (en) * | 2019-06-12 | 2019-10-15 | 上海交通大学 | Doubly fed induction generator electromagnetical transient emulation method and analogue system based on FPGA |
| CN110334407B (en) * | 2019-06-12 | 2022-11-04 | 上海交通大学 | Double-fed wind motor electromagnetic transient simulation method and system based on FPGA |
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