CN109066771A - A kind of the virtual synchronous machine simulator and new energy power station of new energy power station - Google Patents
A kind of the virtual synchronous machine simulator and new energy power station of new energy power station Download PDFInfo
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- CN109066771A CN109066771A CN201810838110.3A CN201810838110A CN109066771A CN 109066771 A CN109066771 A CN 109066771A CN 201810838110 A CN201810838110 A CN 201810838110A CN 109066771 A CN109066771 A CN 109066771A
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- 230000005611 electricity Effects 0.000 claims abstract description 62
- 230000003362 replicative effect Effects 0.000 claims abstract description 27
- 238000004088 simulation Methods 0.000 claims description 76
- 238000006243 chemical reaction Methods 0.000 claims description 49
- 238000012544 monitoring process Methods 0.000 claims description 22
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- 230000011664 signaling Effects 0.000 claims description 13
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- H02J3/383—
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- H02J3/386—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/40—Synchronising a generator for connection to a network or to another generator
- H02J3/42—Synchronising a generator for connection to a network or to another generator with automatic parallel connection when synchronisation is achieved
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The present invention provides the virtual synchronous machine simulators and new energy power station of a kind of new energy power station, including replicating machine and interface system, at least two interfaces are provided on interface system, each interface is used to be correspondingly connected at least two control systems in photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system, and replicating machine is connect with interface system.Due to being provided at least two interfaces on interface system, therefore the control performance under the function and fault traversing operating condition of at least two virtual synchronous machines can be tested, and the control method of at least two virtual synchronous machines combined operating under different capabilities and different grid entry point operating conditions can be studied, copying multiplicity of the invention, can study the function of different types of virtual synchronous machine current transformer.
Description
Technical field
The invention belongs to Real-time Simulation Technology field, in particular to the virtual synchronous machine simulator of a kind of new energy power station
And new energy power station.
Background technique
With the development of society and economy, requirement of the people to power grid is higher and higher, concentrated to solve traditional power grid power supply,
The drawback to cause serious pollution to the environment etc., more and more researchers have research emphasis in distributed power generation (distributed in mind
Generation, DG) technology.With distributed power generation it is ever-increasing simultaneously, also there are many problems.It is large-scale
Power grid is accessed, has threatened the safety and stability of electric system to a certain extent, is showed as follows: distributed generation resource access electricity
Net, the dispatcher in power grid is not easy to control, this is to be determined that distributed generation resource has by the characteristics of distributed generation resource itself
Randomness and fluctuation, and how the usual very little of capacity realizes the peace of power grid when permeability is higher in the power system for it
Full stable operation, but ensure simultaneously user power utilization reliability and higher power supply quality, this is the weight that distributed power generation faces
Want problem；The access of distributed generation resource, power distribution network become active system from a passive system, and power distribution network becomes more sophisticated,
Safety, stability certainly will be affected, so power distribution network needs deeply to grind to the adaptation situation that a large amount of distributed generation resources access
Study carefully.Interface of the gird-connected inverter as distributed generation resource access power grid, itself does not have the intrinsic inertia of synchronous generator, right
It does not contribute in the whole inertia of electric system, and its dynamic responding speed is very fast, can seriously affect in the event of a failure
The stability of system frequency；The output impedance of distributed generation resource is not in perception, therefore the ability of its anti-current impact substantially reduces,
It bring impact is stablized for power system security and influences to cope with distributed generation resource, it is thus proposed that be adapted to micro-capacitance sensor
Control strategy, i.e. " virtual synchronous generator (virtual synchronous generation, VSG) " control strategy leads to
The mechanical equation and electromagnetic equation for crossing simulation synchronous generator make active frequency modulation, the nothing of grid-connected converter simulation synchronous generator
The characteristics such as function pressure regulation, to improve the stability of the grid-connected rear power grid of grid-connected converter.
Currently, the use of inverter is more and more extensive, especially needs high reliablity, uninterrupted power supply demand some
Field.With economic continuous growth, electrical equipment demand is continued to increase, is promoted steadily to the capacity requirement of electric system.
With the continuous emergence deteriorated with emerging generation mode of human environment, the future center of gravity of power generation will necessarily fall in green hair
On electricity.At the same time, digitlization, it is integrated have become modern power electronics technology development trend, have concurrently high arithmetic speed and
The DSP of strong control ability is widely applied in the control field of the power electronic equipments such as inverter, motor.Such as Publication No.
" CN107102568A ", the China of entitled " photovoltaic virtual synchronous machine stability of grid connection hardware-in―the-loop test system and method " is specially
Benefit, wherein test macro includes power electronics real-time simulation platform, and power electronics real-time simulation platform includes power grid, photovoltaic void
The real-timedigital simulation model of quasi- synchronous machine cluster device and photovoltaic virtual synchronous machine equipment, realizes to the patent flexible and convenient
The stability of grid connection hardware-in―the-loop test of photovoltaic virtual synchronous machine, and stability of grid connection analysis result is closer in engineering reality
Border, but the patent only emulates photovoltaic virtual synchronous machine, copying is single.Due to having void in generation of electricity by new energy station
The current transformer product of quasi- synchronous machine function increases year by year, and different types of virtual synchronous machine current transformer is for power grid regulating power
It influences, different due to the difference of capacity and grid entry point, therefore, it is necessary to develop that different types of virtual synchronous machine change can be studied
Flow the equipment of device function.
Summary of the invention
The purpose of the present invention is to provide the virtual synchronous machine simulators and new energy power station of a kind of new energy power station, use
It is single in the copying for the virtual synchronous machine simulator for solving the problems, such as new energy power station in the prior art.
To achieve the above object, the present invention provides a kind of virtual synchronous machine simulators of new energy power station, including imitative
Prototype and interface system, at least two interfaces are provided on the interface system, and each interface is virtually same for being correspondingly connected with photovoltaic
Walk at least two controls in machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system
System, the replicating machine are connect with the interface system；It is virtually same that photovoltaic virtual synchronous machine, wind-powered electricity generation are stored in the replicating machine
At least two digital simulation models in the digital simulation model of step machine or centralized virtual synchronous machine, the replicating machine is according to light
The digital simulation model for lying prostrate virtual synchronous machine calculates the first input signal, according to the digital simulation model meter of photovoltaic virtual synchronous machine
The second input signal is calculated, or third input signal is calculated according to the digital simulation model of the centralized virtual synchronous machine, and will
At least two input signals in first input signal, the second input signal and third input signal are sent to the interface
System.
In order to meet the needs of new energy power station, the interface system includes three interfaces, and each interface is for being correspondingly connected with
Photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system, are used in combination
In reception first input signal, the second input signal and third input signal.
Further, the interface system is for defeated to the first input signal, the second input signal and third that receive
Enter signal and be converted to analog signals and on-off model, and by the analog quantity and the corresponding hair of on-off model after conversion
Give photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system.
It further, further include background monitoring system, the background monitoring system is for receiving the photovoltaic virtual synchronous
Machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system believe the analog quantity received
Number and on-off model calculate and generate corresponding remote signalling and telemetered signal.
Further, background monitoring system is controlled to the photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine
System and centralized virtual synchronous machine control system transmission remote control and remote regulating signal, the remote control and remote regulating signal and photovoltaic are virtual
The analog quantity that synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system receive
Signal and on-off model carry out calculating the first operation signal of corresponding generation, the second operation signal and third operation signal, and will
First operation signal, the second operation signal and third operation signal are sent to the interface system.
Further, first input signal includes alternating voltage, alternating current DC bus-bar voltage, SOC value of battery
And circuit breaker switch state；Second input signal includes pusher side/net side alternating voltage, pusher side/net side alternating current, direct current
Busbar voltage, motor speed, master control motor torque and circuit breaker switch state；The third input signal includes alternating current
Pressure, alternating current, DC bus-bar voltage, cell voltage, DC current, SOC value of battery and circuit breaker switch state.
It is further limited as to interface system, the interface system includes analog output module, the analog quantity
Output module obtains the first simulation for converting to alternating voltage, the ac current signal in first input signal
Measure signal；Machine in second input signal/net side alternating voltage, machine/net side alternating current, motor speed signal are carried out
Conversion, obtains the second analog signals；To DC bus-bar voltage, DC current and the battery SOC signal in third input signal
It is converted, obtains third analog signals.
It is further limited as to interface system, the interface system further includes switch state output module, switch
Quantity of state input module, the switch state output module are used for the circuit breaker switch state in first input signal
Signal carry out digital-to-analogue conversion obtain first switch amount signal, to the circuit breaker switch state signal in second input signal into
Line number mould is converted to second switch amount signal, carries out digital-to-analogue to the circuit breaker switch state signal in the third input signal
It is converted to third on-off model；Switch state input module to the switching operation signal in first operation signal into
Row analog-to-digital conversion obtains first switch operation signal, carries out analog-to-digital conversion to the switching operation signal in second operation signal
Second switch operation signal is obtained, third is obtained to the switching operation signal progress analog-to-digital conversion in the third operation signal and is opened
Close operation signal.
It is further limited as to interface system, the interface system further includes transmission module, and the transmission module is used
In in first operation signal driving operation signal, in the second operation signal driving operation signal and third operate
Driving operation signal in signal is converted respectively, and is sent to replicating machine.
The present invention also provides a kind of new energy power stations, including replicating machine, interface system and the control of photovoltaic virtual synchronous machine
At least two control systems in system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system, institute
It states and is provided at least two interfaces on interface system, it is virtual that each interface is correspondingly connected with photovoltaic virtual synchronous machine control system, wind-powered electricity generation
At least two control systems in synchronous machine control system sum aggregate Chinese style virtual synchronous machine control system, the replicating machine with it is described
Interface system connection；Photovoltaic virtual synchronous machine, wind-powered electricity generation virtual synchronous machine or centralized virtual synchronous are stored in the replicating machine
At least two digital simulation models in the digital simulation model of machine, the replicating machine are imitative according to the number of photovoltaic virtual synchronous machine
True mode calculates the first input signal, calculates the second input signal or root according to the digital simulation model of photovoltaic virtual synchronous machine
Third input signal is calculated according to the digital simulation model of the centralized virtual synchronous machine, and by first input signal, the
At least two input signals in two input signals and third input signal are sent to the interface system.
In order to meet the needs of new energy power station, the interface system includes three interfaces, and each interface is for being correspondingly connected with
Photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system, are used in combination
In reception first input signal, the second input signal and third input signal.
Further, the interface system is for defeated to the first input signal, the second input signal and third that receive
Enter signal and be converted to analog signals and on-off model, and by the analog quantity and the corresponding hair of on-off model after conversion
Give photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system.
It further, further include background monitoring system, the photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine
Control system and centralized virtual synchronous machine control system carry out calculating life to the analog signals and on-off model that receive
The background monitoring system is sent at corresponding remote signalling and telemetered signal, and by the remote signalling and telemetered signal.
Further, the photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralization are empty
The remote control and remote regulating signal and the analog signals received and open that quasi- synchronous machine control system is sent according to background monitoring system
Pass amount signal calculate it is corresponding generate the first operation signal, the second operation signal and third operation signal, and by described first
Operation signal, the second operation signal and third operation signal are sent to the interface system.
Further, first input signal includes alternating voltage, alternating current DC bus-bar voltage, SOC value of battery
And circuit breaker switch state；Second input signal includes pusher side/net side alternating voltage, pusher side/net side alternating current, direct current
Busbar voltage, motor speed, master control motor torque and circuit breaker switch state；The third input signal includes alternating current
Pressure, alternating current, DC bus-bar voltage, cell voltage, DC current, SOC value of battery and circuit breaker switch state.
It is further limited as to interface system, the interface system includes analog output module, the analog quantity
Output module obtains the first simulation for converting to alternating voltage, the ac current signal in first input signal
Measure signal；Machine in second input signal/net side alternating voltage, machine/net side alternating current, motor speed signal are carried out
Conversion, obtains the second analog signals；To DC bus-bar voltage, DC current and the battery SOC signal in third input signal
It is converted, obtains third analog signals.
It is further limited as to interface system, the interface system further includes, switch state output module, switchs
Quantity of state input module, the switch state output module are used for the circuit breaker switch state in first input signal
Signal carry out digital-to-analogue conversion obtain first switch amount signal, to the circuit breaker switch state signal in second input signal into
Line number mould is converted to second switch amount signal, carries out digital-to-analogue to the circuit breaker switch state signal in the third input signal
It is converted to third on-off model；Switch state input module to the switching operation signal in first operation signal into
Row analog-to-digital conversion obtains first switch operation signal, carries out analog-to-digital conversion to the switching operation signal in second operation signal
Second switch operation signal is obtained, third is obtained to the switching operation signal progress analog-to-digital conversion in the third operation signal and is opened
Close operation signal.
It is further limited as to interface system, the interface system further includes transmission module, and the transmission module is used
In in first operation signal driving operation signal, in the second operation signal driving operation signal and third operate
Driving operation signal in signal is converted respectively, and is sent to replicating machine.
The beneficial effects of the present invention are:
Virtual synchronous machine simulator of the invention includes replicating machine and interface system, and at least two are provided on interface system
A interface, each interface is for being correspondingly connected with photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and concentration
At least two control systems in formula virtual synchronous machine control system, replicating machine are connect with interface system.It is stored in replicating machine
At least two numbers in the digital simulation model of photovoltaic virtual synchronous machine, wind-powered electricity generation virtual synchronous machine or centralized virtual synchronous machine
Simulation model, replicating machine calculate the first input signal, replicating machine according to light according to the digital simulation model of photovoltaic virtual synchronous machine
The digital simulation model for lying prostrate virtual synchronous machine calculates the second input signal, or the Digital Simulation mould according to centralized virtual synchronous machine
Type calculates third input signal, and at least two in the first input signal, the second input signal and third input signal are defeated
Enter signal and is sent to interface system.Due to being provided at least two interfaces on interface system, at least two void can be tested
Control performance under the function and fault traversing operating condition of quasi- synchronous machine, and at least two virtual synchronous machines can be studied in different appearances
The control method of combined operating under amount and different grid entry point operating conditions, copying multiplicity of the invention, can study different type
Virtual synchronous machine current transformer function.
Detailed description of the invention
Fig. 1 is the structural block diagram of virtual synchronous machine simulator of the invention；
Fig. 2 is the Digital Simulation of photovoltaic virtual synchronous machine of the invention, wind-powered electricity generation virtual synchronous machine, centralized virtual synchronous machine
Model schematic；
Fig. 3 is the specific block diagram of virtual synchronous machine simulator of the invention.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing:
The present invention provides a kind of new energy power stations, including replicating machine, interface system and photovoltaic virtual synchronous machine control system
At least two control systems in system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system, interface
At least two interfaces are provided in system, each interface is correspondingly connected with photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine
At least two control systems in control system and centralized virtual synchronous machine control system, replicating machine are connect with interface system.
The present embodiment illustrates by taking three kinds of virtual synchronous machines as an example: new energy power station include real-time simulation machine, interface system,
Photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system, centralized virtual synchronous machine control system and backstage
Monitoring system；Real-time simulation machine is connected with each other by optical fiber and interface system, and interface system is empty by cable and optical fiber and photovoltaic
Quasi- synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system are connected with each other, light
Volt virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system pass through optical fiber
It is connected with each other with background monitoring system.As shown in figure 3, photovoltaic virtual synchronous machine control system includes DSP+FPGA control panel, wind
Electric virtual synchronous machine control system includes pusher side control panel and net side control panel, during centralized virtual synchronous machine control system includes
Entreat control panel and module control panel.
Wherein, real-time simulation machine calculates input signal, and send to and connect according to the digital simulation model of virtual synchronous machine
Port system output；Interface system carries out conversion to the input signal that real-time simulation machine transmits and generates analog signals and switching value letter
Number, and by the analog signals and on-off model after conversion, it is virtually same to photovoltaic virtual synchronous machine control system, wind-powered electricity generation respectively
Walk machine control system and centralized virtual synchronous machine control system transmission.
Photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system
System, according to analog signals and on-off model that interface system uploads, the command signal issued with background monitoring system is passed through
Related algorithm, which calculates, generates corresponding operation signal, and exports operation signal, while photovoltaic virtual synchronous machine control to interface system
System processed, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system to the analog signals received and
On-off model, which calculate, generates corresponding remote signalling and telemetered signal, and remote signalling and telemetered signal are sent to background monitoring system
System.
Background monitoring system shows remote signalling and telemetered signal, while background monitoring system controls to photovoltaic virtual synchronous machine and is
System, wind-powered electricity generation virtual synchronous machine control system issue related remote control and remote regulating signal to centralized virtual synchronous machine control system.Its
In, the first remote signal includes debugging mode and operational mode, and the first remote regulating signal includes power command value and tuning parameter；The
Two remote signals include debugging mode and operational mode, and the second remote regulating signal includes torque instruction and tuning parameter；Third remote control
Signal includes debugging mode and operational mode, and third remote regulating signal includes tuning parameter, DC voltage and alternating current instruction value.
Specifically, as depicted in figs. 1 and 2, in real-time simulation machine including meeting RTDS standard member based on the foundation of RSCAD software
The digital simulation model of the photovoltaic of part format, wind-powered electricity generation and centralized 3 kinds of virtual synchronous machines.Wherein, photovoltaic virtual synchronous machine number
Simulation model are as follows: utilize RSCAD simulation software, build the RTDS simulation model of photovoltaic virtual synchronous machine, in RTDS simulation model
It includes at least: solar battery, small-power centralization battery model, DC/AC converter simulation model, LC filter circuit emulation mould
Type, critical technical parameter include: DC voltage, DC current, alternating voltage, alternating current, battery SOC state and power.
The digital simulation model of wind-powered electricity generation virtual synchronous machine are as follows: utilize RSCAD simulation software, build wind-powered electricity generation virtual synchronous machine
RTDS simulation model includes at least in RTDS simulation model: blower, AC-DC-AC converter simulation model, LCL filter circuit are imitative
True mode, crowbar circuit simulation model, critical technical parameter include: DC bus-bar voltage, pusher side/net side alternating voltage, machine
Side/net side alternating current, motor speed and torque.
The digital simulation model of centralized virtual synchronous machine are as follows: utilize RSCAD simulation software, build centralized virtual synchronous
Machine RTDS simulation model includes at least in RTDS simulation model: high-power centralization battery model, the emulation of DC/DC booster circuit
Model, DC/AC converter simulation model, LCL filter circuit simulation model, critical technical parameter include: DC voltage, direct current
Stream, alternating voltage, alternating current, battery SOC state and power.
Real-time simulation machine calculates the first input signal according to photovoltaic virtual synchronous machine digital simulation model, virtual according to wind-powered electricity generation
Synchronous machine digital simulation model calculates the second input signal, and it is defeated to calculate third according to centralized virtual synchronous machine digital simulation model
Enter signal.Wherein the first input signal includes AC voltage/current, DC bus-bar voltage, SOC value of battery and killer switch shape
State；Second input signal include pusher side/net side alternating voltage, pusher side/net side alternating current, DC bus-bar voltage, motor speed,
The motor torque and circuit breaker switch state of master control；Third input signal includes AC voltage/current, DC bus-bar voltage, electricity
Cell voltage, DC current, SOC value of battery and circuit breaker switch state.
Interface system includes various analog output modules, switch state output module, switch state input module
And transmission module.Wherein, analog output interface circuit is to the electricity in the first input signal, the second input signal and third input signal
The data volumes such as current voltage carry out digital-to-analogue conversion and obtain analog signals.
Switch state output module carries out digital-to-analogue conversion to the circuit breaker switch state signal in the first input signal, obtains
It is exported to first switch amount signal and to photovoltaic virtual synchronous machine control system, to the killer switch shape in the second input signal
State signal carries out digital-to-analogue conversion, obtains second switch amount signal and exports to wind-powered electricity generation virtual synchronous machine control system, defeated to third
Enter circuit breaker switch state signal in signal and carry out digital-to-analogue conversion, obtains third on-off model and to centralized virtual synchronous
Machine control system output.
Switch state input module carries out analog-to-digital conversion to the switching operation signal in the first operation signal, and to real-time
First switch operation signal after replicating machine output conversion, carries out modulus to the switching operation signal in the second operation signal and turns
It changes, and to the second switch operation signal after the output conversion of real-time simulation machine, to the switching operation signal in third operation signal
Analog-to-digital conversion is carried out, and exports the third switching operation signal after conversion to real-time simulation machine.
Transmission module drives operation signal to turn in the first operation signal, the second operation signal, third operation signal
It changes, and is exported to real-time simulation machine.
As shown in figure 3, analog output module includes High Speed Analog amount output GTAO board.High Speed Analog amount exports GTAO
Board converts alternating voltage, the ac current signal in the first input signal, obtains the first analog signals, and export
Give photovoltaic virtual synchronous machine control system；To machine in the second input signal/net side alternating voltage, machine/net side alternating current, revolving speed
Signal is converted, and obtains the second analog signals, and export and give wind-powered electricity generation virtual synchronous machine control system；To third input signal
Middle DC bus-bar voltage, DC current and battery SOC signal are converted, and obtain third analog signals, and export to concentration
Formula virtual synchronous machine control system.
Switch state input/output module is that mutually cascade high-speed figure amount inputs GTDI board and high-speed figure amount
Export GTDO board；High-speed figure amount output GTDO board counts the circuit breaker switch state signal in the first input signal
Mould conversion obtains first switch amount signal and exports to photovoltaic virtual synchronous machine control system, to disconnected in the second input signal
Road device switch state signal carries out digital-to-analogue conversion, obtains second switch amount signal and defeated to wind-powered electricity generation virtual synchronous machine control system
Out, digital-to-analogue conversion is carried out to the circuit breaker switch state signal in third input signal, obtains third on-off model and to collection
The output of Chinese style virtual synchronous machine control system.High-speed figure amount inputs GTDI board and operates letter to the switch in the first operation signal
Number carry out analog-to-digital conversion, and to real-time simulation machine output conversion after first switch operation signal；To in the second operation signal
Switching operation signal carries out analog-to-digital conversion, and exports the second switch operation signal after conversion to real-time simulation machine；Third is grasped
Make the switching operation signal in signal and carry out analog-to-digital conversion, and operates letter to the third switch after the output conversion of real-time simulation machine
Number.
Transmission module includes GTFPGA high-speed transfer unit, and GTFPGA high-speed transfer unit is to the first operation signal, second
Driving operation signal in operation signal, third operation signal is converted, and is exported to real-time simulation machine.
The emulation mode of the virtual synchronous machine of new energy power station includes the following steps:
Step 1, real-time simulation machine is according to the mathematical model of photovoltaic virtual synchronous machine, the digital mould of wind-powered electricity generation virtual synchronous machine
The mathematical model of type and centralized virtual synchronous machine calculates the first input signal, the wind-powered electricity generation of photovoltaic virtual synchronous machine control system
The third input signal of second input signal of virtual synchronous machine control system and centralized virtual synchronous machine control system, and to
Interface system exports the first input signal, the second input signal and third input signal.
Step 2, interface system High Speed Analog amount export alternating voltage, alternating current of the GTAO board to the first input signal
Stream carries out digital-to-analogue conversion, and the first obtained analog signals hand over machine/net side alternating voltage of the second input signal, machine/net side
Galvanic electricity stream, revolving speed carry out digital-to-analogue conversion and obtain the second analog signals, to the DC voltage of third input signal, DC current into
The third analog signals that line number mould is converted to；High-speed figure amount exports GTDO board to the breaker in the first input signal
Switch state signal carries out digital-to-analogue conversion, obtains first switch amount signal and exports to photovoltaic virtual synchronous machine control system, right
Circuit breaker switch state signal in second input signal carries out digital-to-analogue conversion, obtains second switch amount signal and virtual to wind-powered electricity generation
Synchronous machine control system output, carries out digital-to-analogue conversion to the circuit breaker switch state signal in third input signal, obtains third
On-off model is simultaneously exported to centralized virtual synchronous machine control system.Wherein, the first analog signals include alternating voltage, hand over
Galvanic electricity stream, DC bus-bar voltage, battery SOC state, first switch amount signal include circuit breaker switch state signal, the second simulation
Amount signal include pusher side/net side alternating voltage, pusher side/net side alternating current, DC bus-bar voltage, motor speed, master control electricity
Machine torque, second switch amount signal include circuit breaker switch state signal, and third analog signals include alternating voltage, alternating current
Stream, DC bus-bar voltage, cell voltage, DC current, battery SOC state, third on-off model include killer switch shape
State signal.
Step 3, received first remote signalling of background monitoring system and telemetered signal, the second remote signalling and telemetered signal and third
Remote signalling and telemetered signal, show on background interface；The first remote control and distant is calculated with system model according to sending instructions under backstage
Signal, the second remote control and remote regulating signal and third remote control and remote regulating signal are adjusted, the first remote control and remote regulating signal are handed down to photovoltaic
Second remote control and remote regulating signal are handed down to wind-powered electricity generation virtual synchronous machine control system by virtual synchronous machine control system, and third is distant
Control and remote regulating signal are handed down to centralized virtual synchronous machine control system.
Step 4, photovoltaic virtual synchronous machine control system receive the operation for the first remote regulating signal that background monitoring system issues
Alternating voltage, alternating current in mode, power command value, with the first analog signals are calculated by control system algorithm and are produced
Raw and the first operation signal of output, and the first operation signal is exported to interface system, the first remote signalling is uploaded to background monitoring system
And telemetered signal, wherein the first telemetered signal includes AC power value, generated energy and voltage and current ring control instruction, and first is distant
Believe that signal includes operational mode, status word and circuit breaker switch state.
Step 5, wind-powered electricity generation virtual synchronous machine control system receive the torque for the second remote regulating signal that background monitoring system issues
With revolving speed and current value in rotor current command value, with the second analog signals, generated by the calculating of control system algorithm and defeated
Second operation signal out, and the second operation signal is exported to interface system, the second remote signalling and telemetering are uploaded to background monitoring system
Signal, wherein the second telemetered signal includes AC power value, revolving speed and voltage and current control instruction value, the second remote signals packet
Include operational mode, status word and circuit breaker switch state.
Step 6, centralized virtual synchronous machine control system receive straight in the third remote regulating signal that background monitoring system issues
DC voltage value and current value in galvanic electricity pressure and alternating current instruction value, with third analog signals, by control system algorithm
Calculating produces and exports third operation signal, and exports third operation signal to interface system, uploads the to background monitoring system
Three remote signalling and telemetered signal, wherein third telemetered signal includes that voltage and current value, AC power value and the control of voltage and current ring refer to
Value is enabled, third remote signals include operational mode, status word and circuit breaker switch state.
Step 7, high-speed figure amount input GTDI board and carry out mould to the first switch operation signal in the first operation signal
Number conversion, and to the first switch operation signal after the output conversion of real-time simulation machine photovoltaic virtual synchronous machine mathematical model, to the
Second switch operation signal in two operation signals carries out analog-to-digital conversion, and to real-time simulation machine wind-powered electricity generation virtual synchronous machine number mould
Second switch operation signal after type output conversion, carries out modulus to the third switching operation signal in third operation signal and turns
It changes, and exports the third switching operation signal after conversion to real-time simulation machine centralization virtual synchronous machine mathematical model.
Step 8, high-speed transfer unit GTFPGA board turn the first driving operation signal in the first operation signal
It changes, and the photovoltaic virtual synchronous machine digital simulation model output into real-time simulation machine；To the second driving in the second operation signal
Operation signal, and the wind-powered electricity generation virtual synchronous machine digital simulation model into real-time simulation machine exports, third in third operation signal
Driving operation signal is converted, and the centralized virtual synchronous machine digital simulation model output into real-time simulation machine.
Specific embodiment is presented above, but the present invention is not limited to embodiment described above.The present invention
Basic ideas be above-mentioned basic scheme, for those of ordinary skill in the art, introduction according to the present invention is designed each
The model of kind deformation, formula, parameter do not need to spend creative work.The case where not departing from the principle and spirit of the invention
Under to embodiment carry out variation, modification, replacement and deformation still fall in protection scope of the present invention.
Claims (10)
1. a kind of virtual synchronous machine simulator of new energy power station, which is characterized in that described including replicating machine and interface system
At least two interfaces are provided on interface system, each interface is empty for being correspondingly connected with photovoltaic virtual synchronous machine control system, wind-powered electricity generation
At least two control systems in quasi- synchronous machine control system sum aggregate Chinese style virtual synchronous machine control system, the replicating machine and institute
State interface system connection；It is virtual same that photovoltaic virtual synchronous machine, wind-powered electricity generation virtual synchronous machine or centralization are stored in the replicating machine
At least two digital simulation models in the digital simulation model of step machine, the replicating machine is according to the number of photovoltaic virtual synchronous machine
Simulation model calculates the first input signal, calculates the second input signal according to the digital simulation model of photovoltaic virtual synchronous machine, or
Calculate third input signal according to the digital simulation model of the centralized virtual synchronous machine, and by first input signal,
At least two input signals in second input signal and third input signal are sent to the interface system.
2. the virtual synchronous machine simulator of new energy power station according to claim 1, which is characterized in that the interface system
System includes three interfaces, and each interface is for being correspondingly connected with photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system
System and centralized virtual synchronous machine control system, and it is defeated for receiving first input signal, the second input signal and third
Enter signal.
3. the virtual synchronous machine simulator of new energy power station according to claim 2, which is characterized in that the interface system
System to the first input signal, the second input signal and third input signal that receive for carrying out being converted to analog signals
And on-off model, and by after conversion analog quantity and on-off model it is corresponding be sent to photovoltaic virtual synchronous machine control system,
Wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system.
4. the virtual synchronous machine simulator of new energy power station according to claim 3, which is characterized in that further include backstage
Monitoring system, the background monitoring system is for receiving the photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control
System processed and centralized virtual synchronous machine control system carry out calculating life to the analog signals and on-off model received
At corresponding remote signalling and telemetered signal.
5. the virtual synchronous machine simulator of new energy power station according to claim 4, which is characterized in that background monitoring system
It unites to the photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system
System, which is sent, to be remotely controlled and remote regulating signal, the remote control and remote regulating signal and photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous
The analog signals and on-off model that machine control system and centralized virtual synchronous machine control system receive carry out calculating pair
The first operation signal, the second operation signal and third operation signal should be generated, and first operation signal, the second operation are believed
Number and third operation signal be sent to the interface system.
6. the virtual synchronous machine simulator of new energy power station according to claim 5, which is characterized in that described first is defeated
Entering signal includes alternating voltage, alternating current, DC bus-bar voltage, SOC value of battery and circuit breaker switch state；Described second is defeated
Enter signal include pusher side/net side alternating voltage, pusher side/net side alternating current, DC bus-bar voltage, motor speed, master control electricity
Machine torque and circuit breaker switch state；The third input signal includes alternating voltage, alternating current, DC bus-bar voltage, electricity
Cell voltage, DC current, SOC value of battery and circuit breaker switch state.
7. the virtual synchronous machine simulator of new energy power station according to claim 6, which is characterized in that the interface system
System includes analog output module, and the analog output module is used for the alternating voltage in first input signal, friendship
Stream current signal is converted, and the first analog signals are obtained；To the machine in second input signal/net side alternating voltage,
Machine/net side alternating current, motor speed signal are converted, and the second analog signals are obtained；To straight in third input signal
Stream busbar voltage, DC current and battery SOC signal are converted, and third analog signals are obtained.
8. the virtual synchronous machine simulator of new energy power station according to claim 6, which is characterized in that the interface system
System further includes switch state output module, switch state input module, and the switch state output module is used for institute
The circuit breaker switch state signal progress digital-to-analogue conversion stated in the first input signal obtains first switch amount signal, to described second
Circuit breaker switch state signal in input signal carries out digital-to-analogue conversion and obtains second switch amount signal, inputs and believes to the third
Circuit breaker switch state signal in number carries out digital-to-analogue conversion and obtains third on-off model；Switch state input module is to institute
The switching operation signal progress analog-to-digital conversion stated in the first operation signal obtains first switch operation signal, to second operation
Switching operation signal in signal carries out analog-to-digital conversion and obtains second switch operation signal, to opening in the third operation signal
It closes operation signal progress analog-to-digital conversion and obtains third switching operation signal.
9. the virtual synchronous machine simulator of new energy power station according to claim 6, which is characterized in that the interface system
System further includes transmission module, the transmission module be used for in first operation signal driving operation signal, to second grasp
The driving operation signal made in driving operation signal and third operation signal in signal is converted respectively, and is sent to emulation
Machine.
10. a kind of new energy power station, which is characterized in that including replicating machine, interface system and photovoltaic virtual synchronous machine control system,
At least two control systems in wind-powered electricity generation virtual synchronous machine control system and centralized virtual synchronous machine control system, the interface
At least two interfaces are provided in system, each interface is correspondingly connected with photovoltaic virtual synchronous machine control system, wind-powered electricity generation virtual synchronous machine
At least two control systems in control system and centralized virtual synchronous machine control system, the replicating machine and the interface system
System connection；The number of photovoltaic virtual synchronous machine, wind-powered electricity generation virtual synchronous machine or centralized virtual synchronous machine is stored in the replicating machine
At least two digital simulation models in word simulation model, the replicating machine is according to the digital simulation model of photovoltaic virtual synchronous machine
It calculates the first input signal, the second input signal is calculated according to the digital simulation model of photovoltaic virtual synchronous machine, or according to described
The digital simulation model of centralized virtual synchronous machine calculates third input signal, and first input signal, second are inputted
At least two input signals in signal and third input signal are sent to the interface system.
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