CN207008314U - The real-time emulation system and hybrid simulation interface of alternating current-direct current power network - Google Patents
The real-time emulation system and hybrid simulation interface of alternating current-direct current power network Download PDFInfo
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- CN207008314U CN207008314U CN201720440191.2U CN201720440191U CN207008314U CN 207008314 U CN207008314 U CN 207008314U CN 201720440191 U CN201720440191 U CN 201720440191U CN 207008314 U CN207008314 U CN 207008314U
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Abstract
It the utility model is related to the real-time emulation system and hybrid simulation interface of alternating current-direct current power network.The system includes：For the direct current mesh portions in alternating current-direct current power network to be carried out with the real-time electromagnetic transient simulation equipment of real-time electromagnetic transient simulation；For the exchange mesh portions in alternating current-direct current power network to be carried out with the real-time electromechanical transient emulation equipment of real-time electromechanical transient emulation；The hybrid simulation interface being bi-directionally connected respectively with real-time electromagnetic transient simulation equipment, real-time electromechanical transient emulation equipment；And the external interface being connected with simulation result output end, the simulation result output end of the real-time electromechanical transient emulation equipment of the electromagnetic transient simulation equipment in real time, the external interface are additionally operable to connect safety stabilizing devices corresponding to alternating current-direct current power network.Real-time emulation system of the present utility model can be applied to extensive alternating current-direct current power network emulation, and it is simple in construction, result is accurate, applicability is wide.
Description
Technical field
Power system detection technique field is the utility model is related to, more particularly to a kind of real-time simulation of alternating current-direct current power network
System and hybrid simulation interface.
Background technology
Current power system realm interconnection scale is increasingly huge, interregional association enhancing；Based on high-power electric and electronic skill
D.C. high voltage transmission (HVDC) system of art and the large-scale electrical power system of flexible AC transmitting system (FACTS) are widely applied,
So that reflect that the dynamic process of different physical features is interweaved together.The new situations of alternating current-direct current power network are to security and stability control
L-G simulation test technology proposes higher requirement.
However, analogue system of the prior art, due to some limitations, is not suitable for extensive AC and DC power system
Simulation study.
Utility model content
Based on this, the utility model embodiment provides the real-time emulation system and hybrid simulation interface of alternating current-direct current power network, energy
Enough it is applied to the emulation experiment of extensive AC and DC power system.
On the one hand the utility model provides the real-time emulation system of alternating current-direct current power network, including：For in alternating current-direct current power network
Direct current mesh portions carry out the real-time electromagnetic transient simulation equipment of real-time electromagnetic transient simulation；
For the exchange mesh portions in alternating current-direct current power network to be carried out with the real-time electromechanical transient emulation of real-time electromechanical transient emulation
Equipment；
The hybrid simulation being bi-directionally connected respectively with real-time electromagnetic transient simulation equipment, real-time electromechanical transient emulation equipment connects
Mouthful, for realize interaction data between real-time electromagnetic transient simulation equipment, real-time electromechanical transient emulation equipment equivalent processing and
Data forwarding；
And with the simulation result output end of electromagnetic transient simulation equipment, the real-time electromechanical transient emulation in real time
The external interface of the simulation result output end connection of equipment, the external interface are additionally operable to connect corresponding safety stabilizing devices；
Wherein, the hybrid simulation interface is used for the first interaction data for receiving the output of real-time electromechanical transient emulation equipment,
And the first interaction data after equivalent handle is delivered to the electromagnetic transient simulation equipment, and for receiving real-time electricity in real time
Second interaction data of magnetic transient emulation equipment output, and the second interaction data after equivalent handle is delivered to the real-time machine
Electric transient emulation equipment.
The utility model also provides a kind of hybrid simulation interface of alternating current-direct current power network real-time emulation system, including：First is dynamic
State equivalent circuit, the second dynamic equivalent circuit and sequence circuit；
The signal input part connection real-time electromechanical transient emulation equipment of the first dynamic equivalent circuit, first dynamic
The signal output part of equivalent circuit connects a data input pin of real-time electromagnetic transient simulation equipment；
The signal input part of the second dynamic equivalent circuit connects real-time electromagnetic transient simulation equipment, first dynamic
One data input pin of the signal output part connection real-time electromechanical transient emulation equipment of equivalent circuit；
The SECO end of the sequence circuit and the first dynamic equivalent circuit, the sequential of the second dynamic equivalent circuit
Control terminal connects, and the sequence circuit is additionally operable to connect the SECO end of the real-time electromechanical transient emulation equipment and real-time electricity
The SECO end of magnetic transient emulation equipment.
Above-mentioned technical proposal, realize that real-time electromagnetic transient simulation equipment is imitated with real-time electromechanical transient state by hybrid simulation interface
True equipment is bi-directionally connected, by the exchange mesh portions in alternating current-direct current power network at the dynamic data equivalence in electromechanical transient simulation equipment
Dynamic transport is to the electromagnetic transient simulation equipment, and by direct current mesh portions in real-time electromagnetic transient simulation equipment in real time after reason
The equivalent processing of dynamic data after dynamic transport to the real-time electromechanical transient emulation equipment；With simple in construction, result it is accurate,
The characteristics of applicability is wide.
Brief description of the drawings
Fig. 1 is the schematic diagram of the real-time emulation system of the alternating current-direct current power network of an embodiment；
Fig. 2 is the subnetting interface diagram of the alternating current-direct current power network of an embodiment；
Fig. 3 is the mathematical modeling structure chart of the real-time electromechanical transient emulation of an embodiment；
Fig. 4 is schematic diagram of the exchange mesh portions in electro-magnetic transient side equivalent circuit of an embodiment；
Fig. 5 is the schematic diagram of the hybrid simulation interface of the real-time emulation system of an embodiment alternating current-direct current power network.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in figure 1, the real-time emulation system of the alternating current-direct current power network of the present embodiment includes：Real-time electromagnetic transient simulation is set
Standby, real-time electromechanical transient emulation equipment, hybrid simulation interface and external interface.Wherein, hybrid simulation interface with it is described in real time
The simulation result output end of electromagnetic transient simulation equipment, the simulation result output end of the real-time electromechanical transient emulation equipment connect
Connect, the external interface is additionally operable to connect safety stabilizing devices corresponding to alternating current-direct current power network.Each several part is described as follows：
The electromagnetic transient simulation equipment in real time, it is real for being carried out to the direct current mesh portions in studied alternating current-direct current power network
When electromagnetic transient simulation.
Electromagnetic transient simulation, be with numerical computation method in power system from several microseconds to the electro-magnetic transient between the several seconds
Process carries out analogue simulation.The frequency characteristic of electromagnetic transient emulation palpus consideration Transmission Line Distributed Parameter characteristic and parameter,
The nonlinear characteristic of the electromagnetism and electromechanical transient process of generator and a series of elements (arrester, transformer, reactor etc.).
Therefore, the mathematical modeling of electromagnetic transient simulation must establish the algebraically or differential, partial differential equation of these elements and system.Electromagnetism is temporary
State emulation does not require nothing more than and uses detailed nonlinear model to the dynamic element of power system, also to count and the transient state mistake of network
Journey, also need to use differential equation.It should be noted that the real-time electromagnetic transient simulation equipment in said system embodiment can
From emulator existing, that real-time electromagnetic transient simulation can be carried out to direct current net.
The real-time electromechanical transient emulation equipment, it is real for being carried out to the exchange mesh portions in studied alternating current-direct current power network
When electromechanical transient simulation.
Electromechanical transient simulation, it is main to study power system by the transient stability after large disturbances and by quiet after microvariations
State stability.Wherein transient stability analysis is to study power system by such as short trouble, excision circuit, generator, is born
Lotus, generator are lost under the effect of the large disturbances such as excitation or impact load, and the dynamic behaviour and holding of power system are synchronous steady
Surely the ability run.The algorithm of usual Electrical-Machanical Transient Simulation of Power System is simultaneous solution power system differential equation group and algebraically
Equation group, to obtain the time solution of physical quantity.Electromechanical transient simulation is analysis Operation of Electric Systems stability and dynamic property
Effective tool.The emulation of electromechanical transient process is the core of online Stability Assessment, its calculating speed and the direct shadow of accuracy
Ring the efficiency and validity of online Stability Assessment.Real-time electromechanical transient emulation, it is anxious to be not only efficient electrical power system stability analysis institute
Need, and be to realize online dynamic secure estimation nuclear control and the basis of automatics experiment and detection.On it should be noted that
State the real-time electromechanical transient emulation equipment in system embodiment can be selected it is existing, can to AC network carry out real-time electromechanical transient state
The emulator of emulation.
The hybrid simulation interface, for realizing that real-time electromagnetic transient simulation equipment is double with real-time electromechanical transient emulation equipment
To connection, that is, it is used for the equivalence for realizing interaction data between real-time electromagnetic transient simulation equipment, real-time electromechanical transient emulation equipment
Processing and data forwarding.Specifically, the hybrid simulation interface is used to receive the first of the output of real-time electromechanical transient emulation equipment
Interaction data (exchanges dynamic data of the mesh portions in real-time electromechanical transient emulation equipment), and by first after equivalent handle
Interaction data is delivered to the electromagnetic transient simulation equipment in real time, and receives the second of real-time electromagnetic transient simulation equipment output
Interaction data (i.e. dynamic data of the direct current mesh portions in real-time electromagnetic transient simulation equipment), and by second after equivalent handle
Interaction data is delivered to the real-time electromechanical transient emulation equipment.
It should be understood that dynamic data of the exchange mesh portions in real-time electromechanical transient emulation equipment is referred to and exchanged
During the electromechanical transient simulation of network, positive and negative, residual voltage phasor that each time step is calculated, this tittle is in whole machine
It is dynamic change during electric transient emulation.Similarly, dynamic number of the direct current mesh portions in real-time electromagnetic transient simulation equipment
According to referring to during the electromagnetic transient simulation of DC network, the ABC three-phase voltage phasors that each time step is calculated, this
Tittle is dynamic change during whole electromagnetic transient simulation.
It should be noted that the hybrid simulation interface in said system embodiment can be selected it is existing, there is above-mentioned function
Interface.
The external interface, with the simulation result output end of electromagnetic transient simulation equipment, the real-time electromechanical in real time
The simulation result output end connection of transient emulation equipment；It is additionally operable to connect corresponding safety stabilizing devices.For realizing the reality
When electromagnetic transient simulation equipment and external safety stabilizing devices between interaction data conversion and transmitting-receiving, and the real-time machine
The conversion and transmitting-receiving of interaction data between electric transient emulation equipment and external safety stabilizing devices.Such as：By described external
Interface, the voltage/current amount that real-time electromagnetic transient simulation unit, real-time electromechanical transient emulation unit export is converted to external
The electrical quantity that safety stabilizing devices adapt to, and the safety stabilizing devices are delivered to, to be realized by the safety stabilizing devices
The stable strategy of the alternating current-direct current power network is calculated.It should be noted that the external interface in said system embodiment can be selected
Interface existing, that there is above-mentioned function.
Wherein, safety and stability control device cuts machine, cutting load, ratio emergency lifting with realization or returns the functions such as drop
Device, it is to ensure that the second defence line of power system security stable operation, by inputting, exporting, communicating, measuring, fault distinguishing,
The part such as control strategy forms.
In one embodiment, can be by studied alternating current-direct current power network in HVDC changes of current bus or FACTS with reference to shown in figure 2
Dedicated transformer punishment is segmented into exchanging mesh portions and direct current mesh portions.Exchange mesh portions are entered by real-time electromechanical transient emulation equipment
Row real-time electromechanical transient emulation, direct current mesh portions carry out real-time electromagnetic transient simulation by real-time electromagnetic transient simulation equipment.
In one embodiment, the electromagnetic transient simulation equipment in real time is specifically used for the power electronics local element portion in alternating current-direct current power network
Divide and carry out real-time electromagnetic transient simulation.The power electronics local element may include：Synchronous generator and the synchronous generator
In unit related exciter control system and prime mover and its governing system, transformer and power transmission line AC network, load
It is at least one.
It is understood that real-time electromagnetic transient simulation equipment in above-described embodiment, real-time electromechanical transient emulation equipment with
And hybrid simulation interface integrally can also understand that accordingly, the safety stabilizing devices are then appreciated that as an emulator
For external equipment.Safety stabilizing devices realize the execution of power system stability policy logic, and emulator realizes alternating current-direct current power network
Real-time simulation, include the electro-magnetic transient real-time simulation of direct current mesh portions (mainly for power electronics local element), and exchange
The electromechanical transient simulation of mesh portions.
In one embodiment, the external interface, it is additionally operable to receive the control information that external safety stabilizing devices are sent,
And the control information is fed back to studied alternating current-direct current power network.The control information is used to make the alternating current-direct current grid responsive
Cut machine, cutting load or emergent control dc power.
By the real-time emulation system of the alternating current-direct current power network of above-described embodiment, by real-time electromagnetic transient simulation equipment, in real time
Electromechanical transient simulation equipment, hybrid simulation interface and external interface composition, suitable for the emulation of extensive alternating current-direct current power network, have
Simple in construction, the characteristics of result is accurate, applicability is wide.Exchange mesh portions in studied alternating current-direct current power network can pass through real-time machine
Real-time electromechanical transient emulation is carried out in electric transient emulation equipment, direct current mesh portions (HVDC or FACTS) can be temporary by real-time electromagnetism
Real-time electromagnetic transient simulation is carried out in state emulator.Realize exchange mesh portions electromechanical transient side to electricity by hybrid simulation interface
Dynamic equivalent processing in magnetic transient state side, and direct current mesh portions electro-magnetic transient side is at the dynamic equivalent in electromechanical transient side
Reason；It can also be realized by external interface and to be interacted with safety stabilizing devices.It is big alternating current-direct current can be simulated in a simulation process
The transient stability characteristic of power network is between reflecting regional power network, the interaction between big system and local system, can also simulate simultaneously
The quick electromagnetic transient response process of partial electric grid or element is to reflect such as HVDC, FACTS device high-speed switch process characteristic.It is real
When emulate the electromagnetic transient of the response of large-scale electromechanical transient and local quick response.
Shown in Figure 1 in an alternative embodiment, the external interface includes modular converter and interface box, modulus of conversion
Interface channel between block and interface box includes data stream transmitting passage and time synchronizing signal transmission channel.The interface box is used
In connection safety stabilizing devices.The modular converter is used to realize real-time electromagnetic transient simulation equipment and the safety stabilizing devices
Between interaction data conversion and transmitting-receiving, and interact number between real-time electromechanical transient emulation equipment and the safety stabilizing devices
According to conversion and transmitting-receiving.Such as:Hybrid simulation sequence amount is realized to the intelligent conversion of ABC three-phase instantaneous flows, i.e., it is temporary from real-time electromagnetism
State emulator, real-time electromechanical transient emulation equipment collection voltages, the amplitude of electric current and phase, being converted to safety stabilizing devices needs
Voltage, the electric current ABC three-phase instantaneous flows wanted.In addition, it may also be used for realize that (i.e. safety stabilizing devices are sent security and stability control amount
Control information) interaction.It should be noted that the modular converter in said system embodiment can be selected it is existing, have it is upper
State the interface module of function.Wherein, interface box can be it is multiple, to connect multiple safety stabilizing devices.
In an alternative embodiment, the electromagnetic transient simulation equipment in real time is to be based on RTDS (Real Time Digital
Simulator, real-timedigital simulation) emulator.
RTDS be carry out Power System Analysis, protection and control research with teaching dedicated platform, can full simulation and
Emulate power system from generate electricity, transmission of electricity, power transformation to electricity consumption overall process dynamic characteristic.RTDS being capable of real-time simulated animation power train
Unite the electromagnetic transients (simulation step length minimum can reach 2 microseconds) of all elements, and being capable of long-time steady operation.RTDS
System realizes real-time simulated animation by specialized hardware platform, and can be filled in real time by D/A converter to external safety and stability
Put transmission signal.
In an alternative embodiment, the real-time electromechanical transient emulation equipment is to be based on user defined logic interface (User
Defined component, i.e. UDC) emulator.I.e. described real-time electromechanical transient emulation equipment can be by making by oneself in user
Corresponding program is loaded in adopted module to realize.
In an alternative embodiment, specifically included in the hybrid simulation interface：First dynamic equivalent circuit, the second dynamic
Equivalent circuit and sequence circuit.
The signal input part connection real-time electromechanical transient emulation equipment of the first dynamic equivalent circuit, first dynamic
The signal output part of equivalent circuit connects a data input pin of real-time electromagnetic transient simulation equipment；The second dynamic equivalent electricity
The signal input part on road connects real-time electromagnetic transient simulation equipment, and the signal output part connection of the second dynamic equivalent circuit is real
When electromechanical transient simulation equipment a data input pin.The SECO of the sequence circuit and the first dynamic equivalent circuit
End, the SECO end connection of the second dynamic equivalent circuit, the sequence circuit, which is additionally operable to connect the real-time electromechanical transient state, to be imitated
True the SECO end of equipment and the SECO end of real-time electromagnetic transient simulation equipment.
Wherein, the first dynamic equivalent circuit is used for the first interaction number for receiving the output of real-time electromechanical transient emulation equipment
According to, and the first interaction data after equivalent handle is delivered to the electromagnetic transient simulation equipment in real time；Described second dynamic etc.
Value circuit is used for the second interaction data for receiving real-time electromagnetic transient simulation equipment output, and second after equivalent handle is interacted
Data are delivered to the real-time electromechanical transient emulation equipment.
It should be noted that the first dynamic equivalent circuit, the second dynamic equivalent circuit in said system embodiment
From circuit or integration module existing, that there is above-mentioned function.
The sequence circuit, for control real-time electromagnetic transient simulation equipment in each time step (i.e. simulation step length), in real time
Electromechanical transient simulation equipment, the work initial situation of the first dynamic equivalent circuit and the second dynamic equivalent circuit and/or parameter are more
Newly.It is alternatively, described that electromagnetic transient simulation equipment, the simulation step length of the real-time electromechanical transient emulation equipment can phases in real time
Together, such as it is 10ms；Can also be different, such as the time step of real-time electromechanical transient emulation equipment may be configured as 10ms, it is electric in real time
The time step of magnetic transient emulation equipment may be configured as 50 μ s.It should be noted that no matter electromagnetic transient simulation equipment, the institute in real time
State whether the simulation step length of real-time electromechanical transient emulation equipment is identical, and both system times are both needed to synchronization, pass through the sequential
Circuit realiration.Alternatively, the data interaction cycle between the external interface and safety stabilizing devices can imitate for electromechanical transient
The time step of true equipment, or the time step of electromagnetic transient simulation equipment.
The output signal of the sequence circuit can be pulse signal, and the pulse signal is corresponding with the time step set, and institute
Carved at the beginning of stating pulse signal and can reflecting each time step, the sequence circuit passes through the pulse signal and controls real-time electromagnetism
Transient emulation equipment, real-time electromechanical transient emulation equipment carry out original state renewal when each time step starts, and control simultaneously
First dynamic equivalent circuit and the second dynamic equivalent circuit carry out parameter renewal when each time step starts.Need what is illustrated
It is that any circuit or integration module with above-mentioned function can be selected in the sequence circuit in said system embodiment.
In each time step, the first dynamic equivalent circuit receives the current time step of real-time electromechanical transient emulation equipment conveying
ABC split-phase controlled voltages source signal (i.e. ABC three-phases instantaneous flow) simultaneously convey result as interface voltage after equivalent processing
To real-time electromagnetic transient simulation equipment, the interface that electromagnetic transient simulation equipment conveys according to the first dynamic equivalent circuit in real time
Voltage carries out the electromagnetic transient simulation of current time step, and updates the real-time electromagnetism with the electromagnetic transient simulation result of current time step
Transient emulation equipment, the original state as the real-time electromagnetic transient simulation equipment of next time step.
Second dynamic equivalent circuit receives the current positive sequence interface power of negative zero three of real-time electromagnetic transient simulation equipment conveying
And carry out being delivered to real-time electromechanical transient emulation equipment, the real-time electromechanical transient state using result as interface power after equivalent processing
The interface power that emulator conveys according to the second dynamic equivalent circuit carries out the electromechanical transient simulation of current time step, and with current
The electromechanical transient simulation result of time step updates the real-time electromechanical transient emulation equipment, the real-time electromechanical transient state as next time step
The original state of emulator.
Under the control of sequence circuit, electromagnetic transient simulation equipment, real-time electromechanical transient emulation equipment, first in real time
Dynamic equivalent circuit and the second dynamic equivalent circuit start the closed loop interaction of next time step, until the simulation time of setting terminates then
Stop interaction.
In an alternative embodiment, the first dynamic equivalent circuit is Dai Weinan dynamic equivalent circuits.Tie up southern theorem
(Thevenin's theorem), the linear resistance one-port network containing independent current source, for port identity, one can be equivalent to
The one-port network of individual voltage source and resistant series.The voltage of voltage source is equal to voltage of the one-port network in load open circuit；Resistance
It is the equivalent resistance of gained one-port network when whole independent current sources are null value in one-port network.Accordingly, described first dynamic etc.
The circuit parameter of value circuit specifically includes：
System original network equation：YV=I；
Network impedance matrix：Z=Y-1；
Equivalent impedance：
Equivalent potential：
In formula, V is network equation node voltage vector, and I is that network equation node Injection Current is vectorial, ALIt is the section of network
Point-port association vector, Y are bus admittance matrixs, and Z is nodal impedance matrix.
In an alternative embodiment, the second dynamic equivalent circuit is the equivalent circuit of dynamic power source model, in reality
When electromechanical transient simulation equipment in set etc. value node be PQ type nodes.PQ type nodes refer to the load section in power system
Point, the active and reactive power value of node is given in Load flow calculation.Second dynamic equivalent circuit for dynamic power source model etc.
It is worth circuit, using three sequence amount injection methods, updates the interface work(of this time step participation electromechanical transient equation calculating in each interactive sequential
Rate amount.The quick transmission of interface data conversion can be realized by calculating three sequence power using instantaneous value.
Further, with reference to shown in figure 1, the electromagnetic transient simulation equipment in real time is additionally operable in alternating current-direct current power network corresponding
Connect physical control device.
With reference to shown in figure 1, the first dynamic equivalent circuit and the second dynamic equivalent circuit are located in offside emulator respectively
Equivalent circuit as this side emulator.First dynamic equivalent circuit and the second dynamic equivalent circuit in parallel.Such as Fig. 5 institutes
Show：Thevenin's equivalence circuit and AC network frequency dependence equivalent circuit FDNE (frequency dependent network
Equivalent, i.e. frequency dependence equivalent circuit) in parallel, electricity when can reflect AC network to electro-magnetic transient side calculation of fault
Road 0-2000Hz high frequency response characteristic.First dynamic equivalent circuit interacts sequential with the interface data of the second dynamic equivalent circuit
Control is carried out by sequence circuit.
Specifically, electromechanical transient side sends Thevenin's equivalence impedance that each time step calculates and equivalent potential to electromagnetism
Transient state side.The interface that electro-magnetic transient side is calculated by the sequence amount transfer algorithm of fundamental wave three simultaneously exchanges three sequence quantity of power and is sent into electromechanics
Transient state side.
Electromechanical transient simulation process carries out the electromechanics of next time step temporarily after obtaining interface and exchanging three sequence power amount informations
State simulation calculation.Electromagnetic transient simulation process is obtaining the Thevenin's equivalence potential and equivalent impedance of electromechanical transient network simultaneously
Afterwards, the electromagnetic transient simulation for carrying out next time step calculates.
Above interaction is repeated after being interacted from electromechanical transient side with electro-magnetic transient side closed loop up to emulation terminates.Emulating
Before end, electromechanical transient side can repeat to do various symmetric faults, asymmetric fault with electro-magnetic transient side.
It should be understood that real-time electromagnetic transient simulation equipment, real-time electromechanical transient emulation equipment in above-described embodiment,
One dynamic equivalent circuit, the second dynamic equivalent circuit and sequence circuit can use equipment/electricity that is existing, possessing above-mentioned function
Road, the including but not limited to above-mentioned equipment/circuit enumerated.
The real-time emulation system of the alternating current-direct current power network of above-described embodiment, suitable for the emulation of extensive alternating current-direct current power network, tool
There is the characteristics of simple in construction, result is accurate, applicability is wide；Extensive interacted system can be simulated in a simulation process
Interaction of the transient stability characteristic between reflecting regional power network, between big system and local system, can also simulate part simultaneously
The quick electromagnetic transient response process of power network or element is to reflect such as HVDC, FACTS device high-speed switch process characteristic.It is imitative in real time
The electromechanical transient response of very extensive alternating current-direct current power network and the electromagnetic transient of local quick response.
It is the schematic diagram of the hybrid simulation interface of the alternating current-direct current power network real-time emulation system of an embodiment with reference to shown in figure 5,
The hybrid simulation interface includes：First dynamic equivalent circuit, the second dynamic equivalent circuit and sequence circuit；
The signal input part connection real-time electromechanical transient emulation equipment of the first dynamic equivalent circuit, first dynamic
The signal output part of equivalent circuit connects a data input pin of real-time electromagnetic transient simulation equipment；
The signal input part of the second dynamic equivalent circuit connects real-time electromagnetic transient simulation equipment, second dynamic
One data input pin of the signal output part connection real-time electromechanical transient emulation equipment of equivalent circuit；
Specifically, the first dynamic equivalent circuit is used for the first interaction for receiving the output of real-time electromechanical transient emulation equipment
Data, and the first interaction data after equivalent handle is delivered to the electromagnetic transient simulation equipment in real time；Second dynamic
Equivalent circuit is used for the second interaction data for receiving real-time electromagnetic transient simulation equipment output, and second after equivalent handle is handed over
Mutual data are delivered to the real-time electromechanical transient emulation equipment.
The SECO end of the sequence circuit and the first dynamic equivalent circuit, the sequential of the second dynamic equivalent circuit
Control terminal connects, and the sequence circuit is additionally operable to connect the SECO end of the real-time electromechanical transient emulation equipment and real-time electricity
The SECO end of magnetic transient emulation equipment.
In an alternative embodiment, the first dynamic equivalent circuit is Dai Weinan dynamic equivalent circuits.
In an alternative embodiment, the second dynamic equivalent circuit is the equivalent circuit of dynamic power source model.
It is understood that the first dynamic equivalent circuit, the second dynamic equivalent circuit and sequential electricity in above-described embodiment
Lu Junke uses the existing circuit or integration module for possessing above-mentioned function, therefore the including but not limited to above-mentioned electricity enumerated
Road.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
Embodiment described above only expresses several embodiments of the present utility model, it is impossible to is interpreted as to the utility model
The limitation of the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, the utility model structure is not being departed from
On the premise of think of, various modifications and improvements can be made, these belong to the scope of protection of the utility model.Therefore, this reality
It should be determined by the appended claims with the protection domain of new patent.
Claims (9)
- A kind of 1. real-time emulation system of alternating current-direct current power network, it is characterised in that including：For the direct current mesh portions in alternating current-direct current power network to be carried out with the real-time electromagnetic transient simulation equipment of real-time electromagnetic transient simulation；For the exchange mesh portions in alternating current-direct current power network to be carried out with the real-time electromechanical transient emulation equipment of real-time electromechanical transient emulation；The hybrid simulation interface being bi-directionally connected respectively with real-time electromagnetic transient simulation equipment, real-time electromechanical transient emulation equipment, use Turn in the equivalence processing and data for realizing interaction data between real-time electromagnetic transient simulation equipment, real-time electromechanical transient emulation equipment Hair；And simulation result output end, the real-time electromechanical transient emulation equipment with the electromagnetic transient simulation equipment in real time The connection of simulation result output end external interface, the external interface is additionally operable to connect corresponding safety stabilizing devices；Wherein, the hybrid simulation interface is used for the first interaction data for receiving the output of real-time electromechanical transient emulation equipment, and will The first interaction data after equivalence processing is delivered to the electromagnetic transient simulation equipment, and in real time temporary for receiving real-time electromagnetism Second interaction data of state emulator output, and it is temporary that the second interaction data after equivalent handle is delivered into the real-time electromechanical State emulator.
- 2. the real-time emulation system of alternating current-direct current power network according to claim 1, it is characterised in that the hybrid simulation interface Including：First dynamic equivalent circuit, the second dynamic equivalent circuit and sequence circuit；The signal input part connection real-time electromechanical transient emulation equipment of the first dynamic equivalent circuit, first dynamic equivalent The signal output part of circuit connects a data input pin of real-time electromagnetic transient simulation equipment；The signal input part of the second dynamic equivalent circuit connects real-time electromagnetic transient simulation equipment, second dynamic equivalent One data input pin of the signal output part connection real-time electromechanical transient emulation equipment of circuit；The sequence circuit and the SECO at the SECO end, the second dynamic equivalent circuit of the first dynamic equivalent circuit End connection, the sequence circuit be additionally operable to connect the real-time electromechanical transient emulation equipment SECO end and real-time electromagnetism it is temporary The SECO end of state emulator.
- 3. the real-time emulation system of alternating current-direct current power network according to claim 2, it is characterised in thatThe first dynamic equivalent circuit is Dai Weinan dynamic equivalent circuits；And/orThe second dynamic equivalent circuit is the equivalent circuit of dynamic power source model.
- 4. the real-time emulation system of alternating current-direct current power network according to claim 1, it is characterised in thatThe electromagnetic transient simulation equipment in real time is additionally operable to corresponding connection physical control device in alternating current-direct current power network.
- 5. the real-time emulation system of alternating current-direct current power network according to any one of claims 1 to 4, it is characterised in that described real-time Electromagnetic transient simulation equipment is the emulator based on RTDS；And/orThe real-time electromechanical transient emulation equipment is the emulator based on user defined logic interface.
- 6. the real-time emulation system of alternating current-direct current power network according to claim 5, it is characterised in that the external interface bag Include：Modular converter and interface box, the interface channel between modular converter and interface box includes data stream transmitting passage and the time is same Walk signal transmission passage；The interface box is used to connect safety stabilizing devices, the modular converter be used to realizing real-time electromagnetic transient simulation equipment with Between the safety stabilizing devices, and the data turn between real-time electromechanical transient emulation equipment and the safety stabilizing devices Change.
- 7. the real-time emulation system of alternating current-direct current power network according to claim 6, it is characterised in that the quantity of the interface box For two or more.
- A kind of 8. hybrid simulation interface of alternating current-direct current power network real-time emulation system, it is characterised in that including：First dynamic equivalent electricity Road, the second dynamic equivalent circuit and sequence circuit；The signal input part connection real-time electromechanical transient emulation equipment of the first dynamic equivalent circuit, first dynamic equivalent The signal output part of circuit connects a data input pin of real-time electromagnetic transient simulation equipment；The signal input part of the second dynamic equivalent circuit connects real-time electromagnetic transient simulation equipment, second dynamic equivalent One data input pin of the signal output part connection real-time electromechanical transient emulation equipment of circuit；The sequence circuit and the SECO at the SECO end, the second dynamic equivalent circuit of the first dynamic equivalent circuit End connection, the sequence circuit be additionally operable to connect the real-time electromechanical transient emulation equipment SECO end and real-time electromagnetism it is temporary The SECO end of state emulator.
- 9. the hybrid simulation interface of alternating current-direct current power network real-time emulation system according to claim 8, it is characterised in thatThe first dynamic equivalent circuit is Dai Weinan dynamic equivalent circuits；And/orThe second dynamic equivalent circuit is the equivalent circuit of dynamic power source model.
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| CN112163315B (en) * | 2020-08-28 | 2023-03-28 | 国网天津市电力公司电力科学研究院 | Electromechanical-electromagnetic transient simulation method for AC/DC hybrid power grid |
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