CN106773796A - Electric power heterogeneous hybrid real-time simulation system and method - Google Patents
Electric power heterogeneous hybrid real-time simulation system and method Download PDFInfo
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Abstract
The embodiment of the invention provides a power heterogeneous hybrid real-time simulation system and a method, relates to the technical field of power systems, and aims to realize real-time simulation of a large-scale power system, and the system comprises: VSC simulation sub-platform, HVDC simulation sub-platform and exchange system simulation sub-platform. Wherein: the VSC simulation sub-platform is used for simulating a flexible direct current transmission system; the HVDC simulation sub-platform adopts a second RTDS simulator to carry out simulation on a high-voltage direct-current power transmission system, the alternating-current system simulation sub-platform adopts a second RTDS simulator to carry out simulation on an alternating-current power transmission system, and a first FPGA unit and the second RTDS simulator are utilized to carry out interaction of a hybrid real-time simulation interface. The invention is applied to large-scale power grids.
Description
Technical field
The present invention relates to technical field of power systems, more particularly to a kind of electric power isomery hybrid real-time simulation system and side
Method.
Background technology
In recent years, as national economy is fast-developing, China's AC and DC power system has also stepped into fast-developing phase, high pressure
The extensive use of the high-power electric and electronic technology such as direct current, MMC-HVDC, STATCOM, alterating and direct current network planning mould is more and more huger,
Systematic electricity electronization feature is more and more obvious, and system operating characteristics also become increasingly complex, and this is imitative to AC and DC power system
Really propose more harsh requirement.
It is returned the complex large power grid of direct current series-parallel connection operation substantially, for deep study and analysis power electronics feature more, should
Take suitable imitative with technical requirements such as panorama simulation scale, the access of important control device and actual electric network service data interfaces
True means and emulation tool.But existing emulation tool has certain limitation to this both at home and abroad at present, it is impossible to meet very well
The requirement of alternating current-direct current complex large power grid simulation analysis.For example, RTDS (Real Time Digital Simulator) is used as at present
It is widely used in the world to be commercialized electro-magnetic transient real-time simulation instrument, although more can accurately to realize that power system is imitated
Very, but large-scale electric system simulation cannot be realized due to being limited to simulation scale；Power system analysis software BPA conducts
Conventional electromechanical transient simulation program, with calculation scale is big, calculating speed fast, better numerical value stability, strong function the features such as, so
And because BPA is only a kind of simulation analysis software, and the emulation during external equipment carries out real network equipment cannot be accessed, because
This simulation data result cannot really reflect the situation of real network equipment, not possess the function of real-time simulation.
Therefore it provides a kind of can realize that large-scale real-time emulation system is the technical problem of current urgent need to resolve.
The content of the invention
Embodiments of the invention provide a kind of electric power isomery hybrid real-time simulation system and method, can realize large-scale
The real-time simulation of power system.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
A kind of first aspect of the embodiment of the present invention, there is provided electric power isomery hybrid real-time simulation system, including：
Voltage source converter VSC emulates sub-platform, and the VSC emulation sub-platform includes：The VSC real-time simulations of interconnection
Device and VSC control devices, wherein, the VSC real-time simulators are used to emulate VSC equipment, and the VSC control devices are used to control
The running status of the VSC equipment that the VSC real-time simulators are simulated, wherein：The VSC real-time simulators include that first is real-time
Digital Simulation RTDS emulators；
D.C. high voltage transmission HVDC emulates sub-platform, and the HVDC emulation sub-platform includes：The 2nd RTDS being connected with each other
Emulator and direct-flow controlling device, the 2nd RTDS emulators are used to emulate HVDC systems, and the direct-flow controlling device is used for
The emulation data of the 2nd RTDS emulators are obtained from the 2nd RTDS emulators, and it is anti-to the 2nd RTDS emulators
Feedback control command；
AC system emulates sub-platform, and the AC system emulation sub-platform includes：The parallel computer of interconnection and
Primary scene programmable gate array FPGA unit, the parallel computer is used to emulate AC system；
The first RTDS emulators pass through bus hub GBH and communication switch with the 2nd RTDS emulators
IRC Switch are connected, and first FPGA unit is connected with the 2nd RTDS emulators by optical fiber, described for realizing
Communication between parallel computer and the 2nd RTDS emulators.
Optionally, the VSC real-time simulators also include：Second FPGA unit, second FPGA unit and the VSC
Control protective unit optical fiber is connected, wherein：Second FPGA unit is used for emulation module multilevel converter MMC submodules
Block, the VSC control devices are used for the running status of the MMC submodules for controlling second FPGA unit to simulate；
Second FPGA unit is connected with the RTDS emulator optical fiber, wherein：The first RTDS emulators are used for
The external circuit that emulation is connected with MMC submodules, second FPGA unit is used for valve group state transfer to described first
RTDS emulators, a RTDS emulators are used to transmit valve group parameter to the FPGA unit.
Optionally, the HVDC emulation sub-platform also includes：Direct current Human machine interface, the direct current HMI and the direct current
Control device data cube computation, the direct current HMI is used to send operational order to the direct-flow controlling device, and receives the direct current
The HVDC system modes that control device is returned.
Exemplary, the VSC control devices include：The control of MMC valve level, the control of MMC station levels and the system-level controls of MMC
System, MMC valve level control is connected with the control of MMC station levels, the second FPGA unit optical fiber respectively, and the MMC station levels are controlled and institute
State the system-level control optical fiber connections of MMC；
The MMC is system-level to be controlled for sending operating instruction to the control of MMC station levels, and receives the MMC station levels control
The running state information of return；The MMC station levels control to be run for sending detection MMC submodules to MMC valve level control
The instruction of state, and receive the operation information of the MMC submodules conducting number that the MMC valve level is returned；The MMC valve level control
The running status of the MMC submodules for controlling second FPGA unit to simulate.
Specifically, second FPGA unit is additionally operable to the element of simulation calculation first, simulation step length is 2-3 μ s, described the
One element includes：Valve group and bridge arm reactance；
The element that the first RTDS emulators are used in the external circuit for emulating includes the second element and ternary
Part, the simulation step length of second element is 50-100 μ s, and the simulation step length of the third element is 2-3 μ s, described second yuan
Part includes ac bus and main circuit breaker, and the third element includes bypass breaker, starts resistance and DC line.
Specifically, the ac bus voltage that first FPGA unit obtains the parallel computer each simulation step length
And phase angle information is sent to the 2nd RTDS emulators, the 2nd RTDS emulators are by the power information for emulating and time
Synchronizing signal is sent to first FPGA unit.
Exemplary, the model ML605, a FPGA of first FPGA unit are logical with the parallel computer
Cross EBI PCI-E connections.
Specifically, the 2nd RTDS emulators are used for the emulation of fourth element, the simulation step length of the fourth element is
50-100 μ s, the fourth element includes valve bridge, change of current converter, smoothing reactor, DC line, wave filter and takes shelter from the thunder
Device；It is additionally operable to send signal condition amount to direct-flow controlling device, the signal condition amount includes the analog quantity and switch of signal
Amount.
The second aspect of the embodiment of the present invention, there is provided a kind of emulation mode of the system being applied to described in first aspect, institute
The method of stating includes：
Service data according to each equipment in system is set up in the parallel computer during AC system emulates sub-platform and is handed over
The machine-electricity transient model of streaming system；
Service data according to HVDC systems sets up HVDC systems in the 2nd RTDS emulators of HVDC emulation sub-platforms
Electromagnetic transient simulation model；
Service data according to each equipment in system sets up the electrical-magnetic model of VSC equipment in VSC emulation sub-platforms；
Start direct current control in first defence program and HVDC emulation sub-platforms of VSC control devices in VSC emulation sub-platforms
Second defence program of device processed；
Start the electrical-magnetic model to be emulated, put down by emulating son to AC system in order to electrical-magnetic model
The second FPGA unit in platform sends time synchronizing signal startup machine-electricity transient model and carries out electromechanical transient simulation.
Exemplary, the service data according to each equipment in system sets up VSC equipment in VSC emulation sub-platforms
Electrical-magnetic model, specifically includes：
Service data according to each equipment of system is set up VSC and is set in the RTDS emulators during VSC emulates sub-platform
The electromagnetic transient simulation model of standby external circuit, VSC equipment is set up certainly in the second FPGA unit in VSC emulation sub-platforms
The electrical-magnetic model of body.
Electric power isomery hybrid real-time simulation system and method provided in an embodiment of the present invention, VSC emulation in the system
Platform realizes the analog simulation of quick electromagnetic transient process, HVDC emulation sub-platforms and realizes the mould of conventional electromagnetic transient process
Intend emulation and AC system emulation sub-platform realizes the analog simulation of electromechanical transient process so that the system can be realized many
The analog simulation of kind of transient process, reality the characteristics of using parallel computer multichannel computing simultaneously in AC system emulation sub-platform
Large-scale AC transmission system emulation is showed, and the RTDS in sub-platform and HVDC emulation sub-platforms has been emulated using VSC and imitated
True device realizes the emulation of conventional AC/DC Power System so that the system can realize the imitative in real time of large-scale power system
Very；On the other hand, the RTDS emulators in the system in VSC emulation sub-platforms and HVDC emulation sub-platforms can be with external equipment
(such as control device or protection device) is connected so that the system can receive the input of outside, so that real realization reality
Real-time Simulation emulation in network electric power system；Additionally, using FPGA unit and RTDS emulators electromagnetic transient simulation it is excellent
Gesture is realized to the emulation of the precision of power electronic equipment, at the same the direct-flow controlling device of the HVDC emulation sub-platforms for accessing and
VSC control devices in VSC emulation sub-platforms so that simulation process is more accurate, efficiently solves alternating current-direct current complex large power grid
Panorama simulation scale, important control device in simulation analysis are accessed and are difficult to what is accessed with actual electric network service data interface
Technical barrier.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is a kind of system composition schematic diagram of electric power isomery hybrid real-time simulation system provided in an embodiment of the present invention；
Fig. 2 is the device and simulation process in a kind of electric power isomery hybrid real-time simulation system provided in an embodiment of the present invention
Between corresponding relation figure；
Fig. 3 is a kind of method flow diagram of electric power isomery hybrid real-time simulation method provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
For the ease of clearly describing the technical scheme of the embodiment of the present invention, in an embodiment of the present invention, employ " the
One ", the printed words such as " second " make a distinction to function or the essentially identical identical entry of effect or similar item, and those skilled in the art can
To understand that the printed words such as " first ", " second " are not defined to quantity and execution order.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, represents there may be three kinds of passes
System, for example, A and/or B, can represent：Individualism A, while there is A and B, individualism B these three situations.In addition, herein
Middle character "/", typicallys represent forward-backward correlation pair as if a kind of relation of "or".
The embodiment of the present invention provides a kind of electric power isomery hybrid real-time simulation system, as shown in figure 1, the system includes：Electricity
Source Con-verters (English：Voltage Source Converter, referred to as：VSC sub-platform 11, D.C. high voltage transmission) is emulated
(English：High-voltage direct current, referred to as：HVDC) emulation sub-platform 12 and AC system emulation are flat
Platform 13, wherein：VSC emulation sub-platforms are used to emulate low-voltage direct transmission system, for example：Flexible direct current power transmission system；Should
HVDC emulation sub-platforms are used to emulate HVDC transmission system；AC system emulation sub-platform is used to emulate ac transmission system
System.Here each sub-platform is made up of multiple specific equipment.
VSC emulation sub-platforms 11 include：The VSC real-time simulators and VSC control device 11b of interconnection, wherein, should
VSC real-time simulators 11a is used to emulate VSC equipment, and VSC control devices 11b is used to control what VSC real-time simulators were simulated
The running status of VSC equipment, wherein：VSC real-time simulators include the first real-timedigital simulation RTDS emulators 11a1；
HVDC emulation sub-platforms 12 include：The 2nd RTDS emulators 12a and direct-flow controlling device 12b being connected with each other, should
2nd RTDS emulators 12a is used to emulate HVDC systems, and direct-flow controlling device 12b is used to be obtained from the 2nd RTDS emulators 12a
The emulation data of the 2nd RTDS emulators 12a are taken, and to the 2nd RTDS emulator 12a feedback control orders.
AC system emulation sub-platform 13 includes：The programmable gate arrays of the parallel computer 13a and primary scene of interconnection
Row FPGA unit 13b, parallel computer 13a are for emulating AC system.
First RTDS emulators 11a1 and the 2nd RTDS emulators 12a passes through bus hub GBH and communication switch IRC
Switch is connected, and the first FPGA unit 13b is connected with the 2nd RTDS emulators 12a by optical fiber, for realizing parallel computer
Communication between 13a and the 2nd RTDS emulators 12a.
It should be noted that need distinguish Fig. 1 in parallel computer, the second FPGA unit, a RTDS emulators with
And the relation of the 2nd solid line and dotted line in RTDS emulators, wherein：Solid line represents the content of emulation, and dotted line only represents connection
Schematic relationships.
Electric power isomery hybrid real-time simulation system provided in an embodiment of the present invention, the VSC emulation sub-platform realities in the system
The analog simulation that the analog simulation of quick electromagnetic transient process, HVDC emulation sub-platforms realize conventional electromagnetic transient process is showed
And AC system emulation sub-platform realizes the analog simulation of electromechanical transient process so that the system can realize various transient state
The analog simulation of process, realizes the characteristics of using parallel computer multichannel computing simultaneously in AC system emulation sub-platform big
The AC transmission system emulation of scale, and emulate the RTDS emulator realities in sub-platform and HVDC emulation sub-platforms using VSC
The now emulation of conventional AC/DC Power System so that the system can realize the real-time simulation of large-scale power system；Separately
On the one hand, the RTDS emulators in the system in VSC emulation sub-platforms and HVDC emulation sub-platforms can be with external equipment (for example
Control device or protection device) connection so that the system can receive the input of outside, so that real realizes real network electricity
Real-time Simulation emulation in Force system；Additionally, being realized using the advantage of FPGA unit and the electromagnetic transient simulation of RTDS emulators
Precision emulation to power electronic equipment, while the direct-flow controlling device and VSC of the HVDC emulation sub-platforms for accessing are imitative
VSC control devices in true sub-platform so that simulation process is more accurate, efficiently solve the emulation point of alternating current-direct current complex large power grid
Panorama simulation scale, important control device in analysis are accessed and difficult with the technology that actual electric network service data interface is difficult to access
Topic.
Optionally, as shown in figure 1, the VSC real-time simulators 11a in the system also includes：Second FPGA unit 11a2, should
Second FPGA unit 11a2 is connected with VSC control protective unit 11b optical fiber, wherein：Second FPGA unit 11a2 is used to emulate mould
Block multilevel converter (English：Modular Multilevel Converter, referred to as：MMC) submodule, VSC control dresses
Put 11b for control the running statuses of MMC submodules that simulate of the second FPGA unit 11a2.
Second FPGA unit 11a2 is connected with a RTDS emulator 11a1 optical fiber, wherein：First RTDS emulators 11a1
For emulating the external circuit being connected with MMC submodules, the second FPGA unit 11a2 is used for valve group state transfer to first
RTDS emulators 11a1, a RTDS emulators 11a1 are for valve group parameter to be transmitted to the second FPGA unit 11a2.
The second above-mentioned FPGA unit is additionally operable to the element of simulation calculation first, and simulation step length is 2-3 μ s, the first element bag
Include：Valve group and bridge arm reactance.
Optionally, in order to realize interacting between user and platform, as shown in figure 1, the HVDC emulation sub-platforms in the system
12 also include：Direct current Human machine interface 12c, direct current HMI12c and direct-flow controlling device 12b data cube computations, direct current HMI12c
For sending operational order to direct-flow controlling device 12b, and receive the system shape of the HVDC systems of direct-flow controlling device 12b returns
State.
Exemplary, as shown in figure 1, above-mentioned VSC control devices 11b includes：MMC valve level control 11b1, MMC station level control
The system-level control 11b3 of 11b2 processed and MMC, MMC valve level control 11b1 controls 11b2, the second FPGA unit with MMC station levels respectively
11a2 optical fiber is connected, and MMC station levels control 11b2 control 11b3 optical fiber system-level with MMC is connected.
The system-level control 11b3 of MMC are used to send operating instruction to MMC station levels control 11b2, and receive the control of MMC station levels
The running state information that 11b2 is returned；MMC station levels control 11b2 is used to send detection MMC submodules to MMC valve level control 11b1
The instruction of running status, and receive the operation information of the MMC submodules conducting number that MMC valve level 11b1 is returned；MMC valve level control
11b1 is used for the running status of the MMC submodules for controlling the second FPGA unit 11a2 to simulate.
Optionally, the first above-mentioned FPGA unit can be FPGA boards, the model of first FPGA unit
ML605, first FPGA unit is connected with parallel computer by EBI PCI-E.
The device in electric power isomery hybrid real-time simulation system shown in reference picture 2 and the corresponding relation between simulation process
Figure, can be obtained by Fig. 2, and the emulation of the programmable gate array of the FPGA module in VSC emulation sub-platforms within the system belongs to device
Part level switching transients process simulation, and the emulation of the MMC submodules carried out by the second FPGA unit that the FPGA module is formed is then
Belong to the emulation of device level electromagnetic transient, transient process that can be during simulated power devices switch, be included in its it is internal will
Some transient processes and be reflected as device voltage, electric current and loss etc. in outside that generation is determined by Semiconductor Physics characteristic
The transient process of some variables.2nd RTDS emulators are the electromagnetic transient emulation of analogue means level, and parallel computer is then
It is the electromechanical transient process emulation of analogue means level.Hybrid real-time simulation is then formed based on above-mentioned various Simulation Compositions, can be emulated
The dynamic process of the various time scales of power system, it is achieved thereby that the electric power isomery hybrid real-time simulation of large-scale power network.
Below by the content based on above-mentioned analogue system, specifically described in detail, be specifically referred to hereafter
Content.
It is exemplary, in above-mentioned VSC emulation sub-platforms, including the second FPGA unit, a RTDS emulators and
VSC control devices.The quick on-off characteristic of the VSC equipment converter valves such as flexible direct current for accurate simulation MMC submodules, using
Two FPGA units are simulated, and simulation step length is 2-3 μ s.And the external circuit of VSC equipment is then in a RTDS real-time simulators
Middle simulation, simulation step length is 50-100 μ s.In addition, the control device of VSC equipment can be using the software control based on FPGA
System, it is also possible to actual control device is accessed, for example, the VSC control devices in Fig. 1.
The second above-mentioned FPGA unit is made up of multiple FPGA modules, and FPGA module be by switching stage can
Programming gate array composition, by programming the simulation formed to MMC submodules, one MMC of a FPGA module correspondence analog simulation
Submodule；And the second FPGA unit correspondence emulation multiple MMC submodules here, the plurality of MMC submodules formation valve group.
The element that an above-mentioned RTDS emulators are used in the external circuit for emulating includes the second element and third element,
The simulation step length of second element is 50-100 μ s, and the simulation step length of the third element is 2-3 μ s, and second element includes exchange
Bus and main circuit breaker, the third element include bypass breaker, start resistance and DC line.
Above-mentioned VSC control devices include：The control of MMC valve level, the control of MMC station levels and the system-level controls of MMC, wherein：
MMC valve level control is mainly used in the instruction controlled according to MMC station levels, carries out MMC and sequential control, the voltage and current control such as unblocks
The capacitor voltage balance control and the control of transverter circulation of system, valve string, and the state of transverter and valve group is detected, reported to station control
Transverter state, failure, present mode of operation, each bridge arm capacitance voltage and wait information；The control of MMC station levels is mainly used in basis
The instruction of the system-level controls of MMC, carries out the conversion and control between the various running statuses of current conversion station, and dependent instruction is issued to
MMC valve level control；The system-level controls of MMC are mainly used in coordinating system-wide sequential control, and by system power, DC voltage etc.
Control is near setting value.
Specifically, the second FPGA unit in above-mentioned VSC emulation sub-platforms is that optical fiber is connected with a RTDS emulators,
First RTDS emulators transmit to second the MMC valve group parameter such as valve group submodule number, bridge arm reactance value, submodule capacitance
FPGA unit, each submodule running status (input, bypass or locking), bridge arm total voltage, son that the second FPGA unit will be emulated
The MMC valve group status information such as module capacitance voltage is transmitted to a RTDS real-time simulators；Second FPGA unit and MMC valve level control
Device processed is optical fiber connection, and the second FPGA unit sends MMC bridge arm currents value and MMC submodules electricity to MMC valve level control device
Hold voltage, MMC valve level control device sends MMC submodule trigger pulses to the second FPGA unit；MMC valve level control device with
MMC station level control devices are optical fiber connections, and MMC valve level control device sends MMC submodules and turns on to MMC station levels control device
Number, MMC station levels control device then sends MMC submodule running state informations to MMC valve level control device；MMC station levels control dress
It is that optical fiber is connected to put with RTDS real-time simulators, alternating current from a RTDS emulators to MMC station level control device Propagation Simulations
Voltage, electric current, circuit-breaker status of net etc., MMC station levels control device then feed back breaker control amount to a RTDS emulators；
MMC station levels control device is that optical fiber is connected with the system-level control devices of MMC, and MMC station levels control device is by current conversion station running status
Information is sent to the system-level control devices of MMC, and the system-level control devices of MMC then run to MMC station level control devices reponse system
Instruction.
Exemplary, in above-mentioned HVDC emulation sub-platforms, including：2nd RTDS emulators, direct current HMI and direct current
Control device.
The 2nd above-mentioned RTDS emulators are used for the emulation of fourth element, and the simulation step length of the fourth element is 50-100 μ
S, the fourth element includes valve bridge, change of current converter, smoothing reactor, DC line, wave filter and arrester；It is additionally operable to
Signal condition amount is sent to direct-flow controlling device, signal condition amount includes the analog quantity and switching value of signal.
Specifically, by the 2nd RTDS emulator interface plates, and voltage, electric current, the change of current are become into the phases such as tap gear
Off status amount is sent to direct-flow controlling device.Direct-flow controlling device is instructed according to operations staff and the 2nd RTDS emulators are uploaded
System mode, to the 2nd RTDS return control instruction and protection act information, so as to form HVDC real-time closed-loop analogue systems.
Exemplary, the 2nd above-mentioned RTDS emulators can be connected with direct-flow controlling device with electric signal, and the 2nd RTDS is imitated
The alternating voltage of emulation, alternating current, DC voltage, direct current are streamed to true device the analog quantity of DC control protection device
Input interface, by the tap gear of converter power transformer, switch, disconnecting link state transfer to DC control protection device switching value
Input interface；Direct-flow controlling device is protected journey and the analog quantity of the 2nd RTDS real-time simulators transmission, is opened according to DC control
Guan Liang, generates the tap order of corresponding converter power transformer, switch, disconnecting link order and feeds back to the by output switch parameter interface
Two RTDS emulators, generation converter valve trigger pulse order feeds back to the 2nd RTDS emulators by pulsed quantity output interface.
Exemplary, above-mentioned AC system emulation sub-platform, including parallel computer and the first FPGA unit.This first
The ac bus voltage and phase angle information that FPGA unit obtains the parallel computer each simulation step length are sent to described
The power information and time synchronizing signal of emulation are sent mono- to a FPGA by the 2nd RTDS emulators, the 2nd RTDS emulators
Unit.
Above-mentioned parallel computer is used for the large-scale AC Electric Power system of analogue simulation, and simulation step length is 10ms, and with
RTDS electromagnetic transient simulations carry out mixed real-time simulation interface interaction.To improve simulation efficiency, extensive AC system is divided
It is several parallel subnets, and parallel computation is carried out in the difference calculating cores being separately dispensed into parallel computer, ensures machine
The strict real-time of electric transient emulation.
Three above emulate sub-platform by mix real-time interface connect, constitute based on " FPGA unit+RTDS emulators+
Parallel computer " heterogeneous platform, the friendship with quick electromagnetic transient state, conventional electromagnetic transient state and electromechanical transient associative simulation function is straight
Stream bulk power grid Multiple Time Scales hybrid real-time simulation function.
The embodiment of the present invention provides a kind of emulation mode for being applied to analogue system above, as shown in Fig. 2 the method
Including：
201st, built in parallel computer of the service data according to each equipment in system in AC system emulation sub-platform
The machine-electricity transient model of grade separation streaming system.
202nd, the service data according to HVDC systems sets up HVDC in the 2nd RTDS emulators of HVDC emulation sub-platforms
The electromagnetic transient simulation model of system.
203rd, the service data according to each equipment in system sets up the electro-magnetic transient of VSC equipment in VSC emulation sub-platforms
Model.
204th, it is straight in first defence program and HVDC emulation sub-platforms of VSC control devices in startup VSC emulation sub-platform
Second defence program of flow control device.
205th, start electrical-magnetic model to be emulated, put down by emulating son to AC system in order to electrical-magnetic model
The second FPGA unit in platform sends time synchronizing signal startup machine-electricity transient model and carries out electromechanical transient simulation.
Exemplary, above-mentioned step 203 specifically includes herein below：
Service data according to each equipment of system is set up VSC and is set in the RTDS emulators during VSC emulates sub-platform
The electromagnetic transient simulation model of standby external circuit, VSC equipment is set up certainly in the second FPGA unit in VSC emulation sub-platforms
The electrical-magnetic model of body.
In the description of above-mentioned implementation method, specific features, structure or feature can be in one or more any realities
Apply and combine in an appropriate manner in example or example.
Electric power isomery hybrid real-time simulation method provided in an embodiment of the present invention, the VSC emulation sub-platform realities in the method
The analog simulation that the analog simulation of quick electromagnetic transient process, HVDC emulation sub-platforms realize conventional electromagnetic transient process is showed
And AC system emulation sub-platform realizes the analog simulation of electromechanical transient process so that the system can realize various transient state
The analog simulation of process, realizes the characteristics of using parallel computer multichannel computing simultaneously in AC system emulation sub-platform big
The AC transmission system emulation of scale, and emulate the RTDS emulator realities in sub-platform and HVDC emulation sub-platforms using VSC
The now emulation of conventional AC/DC Power System so that the system can realize the real-time simulation of large-scale power system；Separately
On the one hand, the RTDS emulators in the system in VSC emulation sub-platforms and HVDC emulation sub-platforms can be with external equipment (for example
Control device or protection device) connection so that the system can receive the input of outside, so that real realizes real network electricity
Real-time Simulation emulation in Force system；Additionally, being realized using the advantage of FPGA unit and the electromagnetic transient simulation of RTDS emulators
Precision emulation to power electronic equipment, while the direct-flow controlling device and VSC of the HVDC emulation sub-platforms for accessing are imitative
VSC control devices in true sub-platform so that simulation process is more accurate, efficiently solve the emulation point of alternating current-direct current complex large power grid
Panorama simulation scale, important control device in analysis are accessed and difficult with the technology that actual electric network service data interface is difficult to access
Topic.
Through the above description of the embodiments, it is apparent to those skilled in the art that, be description
It is convenient and succinct, only carried out with the division of above-mentioned each functional module for example, in practical application, can as needed will be upper
Function distribution is stated to be completed by different functional module, will the internal structure of device be divided into different functional modules, to complete
All or part of function described above.The specific work process of the system, apparatus, and unit of foregoing description, before may be referred to
The corresponding process in embodiment of the method is stated, be will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed device or equipment, can be by it
Its mode is realized.For example, device embodiment described above is only schematical, for example, the module or unit
Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, for example multiple units or component
Can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or
The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings of device or unit by some interfaces
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the present invention each
The all or part of step of embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD
Etc. it is various can be with the medium of store program codes.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of electric power isomery hybrid real-time simulation system, it is characterised in that including：
Voltage source converter VSC emulates sub-platform, and the VSC emulation sub-platform includes：The VSC real-time simulators of interconnection and
VSC control devices, wherein, the VSC real-time simulators are used to emulate VSC equipment, and the VSC control devices are described for controlling
The running status of the VSC equipment that VSC real-time simulators are simulated, wherein：The VSC real-time simulators include the first real-time digital
Emulation RTDS emulators；
D.C. high voltage transmission HVDC emulates sub-platform, and the HVDC emulation sub-platform includes：The 2nd RTDS emulation being connected with each other
Device and direct-flow controlling device, the 2nd RTDS emulators are used to emulate HVDC systems, and the direct-flow controlling device is used for from institute
The emulation data that the 2nd RTDS emulators obtain the 2nd RTDS emulators are stated, and control is fed back to the 2nd RTDS emulators
System order；
AC system emulates sub-platform, and the AC system emulation sub-platform includes：The parallel computer of interconnection and first
On-site programmable gate array FPGA unit, the parallel computer is used to emulate AC system；
The first RTDS emulators pass through bus hub GBH and communication switch IRC with the 2nd RTDS emulators
Switch is connected, and first FPGA unit is connected with the 2nd RTDS emulators by optical fiber, described parallel for realizing
Communication between computer and the 2nd RTDS emulators.
2. analogue system according to claim 1, it is characterised in that the VSC real-time simulators also include：2nd FPGA
Unit, second FPGA unit is connected with the VSC control protective units optical fiber, wherein：Second FPGA unit is used for
Emulation module multilevel converter MMC submodules, the VSC control devices are used to control second FPGA unit to simulate
MMC submodules running status；
Second FPGA unit is connected with the RTDS emulator optical fiber, wherein：The first RTDS emulators are used to emulate
The external circuit being connected with MMC submodules, second FPGA unit is used to imitate valve group state transfer a to RTDS
True device, a RTDS emulators are used to transmit valve group parameter to the FPGA unit.
3. analogue system according to claim 1, it is characterised in that the HVDC emulation sub-platform also includes：Direct current people
Machine interface HMI, the direct current HMI and the direct-flow controlling device data cube computation, the direct current HMI are used for the DC control
Device sends operational order, and receives the system mode of the HVDC systems that the direct-flow controlling device is returned.
4. analogue system according to claim 1, it is characterised in that the VSC control devices include：The control of MMC valve level,
MMC station levels are controlled and the system-level controls of MMC, and MMC valve level control is controlled with MMC station levels respectively, the second FPGA unit light
Fibre connection, the MMC station levels control control optical fiber system-level with the MMC is connected；
The MMC is system-level to be controlled for sending operating instruction to the control of MMC station levels, and receives the MMC station levels control return
Running state information；The MMC station levels are controlled for sending detection MMC submodule running statuses to MMC valve level control
Instruction, and receive the operation information that the MMC submodules that MMC valve level returns turn on number；The MMC valve level controls to be used for
Control the running status of the MMC submodules that second FPGA unit simulates.
5. analogue system according to claim 2, it is characterised in that
Second FPGA unit is additionally operable to the element of simulation calculation first, and simulation step length is 2-3 μ s, and first element includes：
Valve group and bridge arm reactance；
The element that the first RTDS emulators are used in the external circuit for emulating includes the second element and third element, institute
The simulation step length of the second element is stated for 50-100 μ s, the simulation step length of the third element is 2-3 μ s, and second element includes
Ac bus and main circuit breaker, the third element include bypass breaker, start resistance and DC line.
6. the analogue system according to claim any one of 1-5, it is characterised in that
Ac bus voltage and phase angle letter that first FPGA unit obtains the parallel computer each simulation step length
Breath is sent to the 2nd RTDS emulators, power information and the time synchronizing signal hair that the 2nd RTDS emulators will be emulated
Deliver to first FPGA unit.
7. the analogue system according to claim any one of 1-5, it is characterised in that the model of first FPGA unit
ML605 a, FPGA is connected with the parallel computer by EBI PCI-E.
8. analogue system according to claim 6, it is characterised in that
The 2nd RTDS emulators are used for the emulation of fourth element, and the simulation step length of the fourth element is 50-100 μ s, institute
Stating fourth element includes valve bridge, change of current converter, smoothing reactor, DC line, wave filter and arrester；It is additionally operable to believe
Number quantity of state is sent to direct-flow controlling device, and the signal condition amount includes the analog quantity and switching value of signal.
9. a kind of emulation mode of the system for being applied to claim 1, it is characterised in that methods described includes：
Service data according to each equipment in system sets up exchange system in the parallel computer during AC system emulates sub-platform
The machine-electricity transient model of system；
Service data according to HVDC systems sets up the electricity of HVDC systems in the 2nd RTDS emulators of HVDC emulation sub-platforms
Magnetic Transient simulation model；
Service data according to each equipment in system sets up the electrical-magnetic model of VSC equipment in VSC emulation sub-platforms；
Start DC control dress in first defence program and HVDC emulation sub-platforms of VSC control devices in VSC emulation sub-platforms
The second defence program put；
Start the electrical-magnetic model to be emulated, in order to electrical-magnetic model by AC system emulation sub-platform
The second FPGA unit send time synchronizing signal start machine-electricity transient model carry out electromechanical transient simulation.
10. method according to claim 9, it is characterised in that the service data according to each equipment in system is in VSC
The electrical-magnetic model of VSC equipment is set up in emulation sub-platform, is specifically included：
Service data according to each equipment of system sets up VSC equipment in the RTDS emulators during VSC emulates sub-platform
The electromagnetic transient simulation model of external circuit, VSC equipment itself is set up in the second FPGA unit in VSC emulation sub-platforms
Electrical-magnetic model.
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