CN107306029A - Analog quantity transmission system and method of hybrid power transmission control protection device - Google Patents
Analog quantity transmission system and method of hybrid power transmission control protection device Download PDFInfo
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- CN107306029A CN107306029A CN201610247677.4A CN201610247677A CN107306029A CN 107306029 A CN107306029 A CN 107306029A CN 201610247677 A CN201610247677 A CN 201610247677A CN 107306029 A CN107306029 A CN 107306029A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 63
- 230000005611 electricity Effects 0.000 claims description 40
- 230000001681 protective effect Effects 0.000 claims description 34
- 238000004088 simulation Methods 0.000 claims description 23
- 239000013307 optical fiber Substances 0.000 claims description 5
- 230000005693 optoelectronics Effects 0.000 claims description 5
- 230000005622 photoelectricity Effects 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 230000011664 signaling Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an analog quantity transmission system and method of a hybrid power transmission control protection device, relates to the technical field of power systems, and is used for discovering weak links of a hybrid power transmission system in time and improving the safe operation of a power grid. The analog quantity transmission system of the hybrid power transmission control protection device comprises: the system comprises an interface conversion device, a photoelectric conversion device, a conventional direct current unit, a flexible direct current unit and an RTDS modeling workstation for outputting alternating current analog quantity and direct current analog quantity; the interface conversion device is respectively in signal connection with the RTDS modeling workstation, the conventional direct current unit and the flexible direct current unit; the photoelectric conversion device is respectively in signal connection with the RTDS modeling workstation, the conventional direct current unit and the flexible direct current unit. The analog quantity transmission system and method of the hybrid power transmission control protection device are used for a hybrid power transmission system comprising a conventional direct current system and a flexible direct current system.
Description
Technical field
The present invention relates to technical field of power systems, and in particular to a kind of mixing transmission of electricity control protective unit
Analog quantity Transmission system and method.
Background technology
The continuous expansion of power network scale brings huge economic benefit, but also gives the safe operation band of power network
Much new technical problem is carried out, has made the operation of power network and manage more complicated, it is therefore necessary to power network
Transmission system carries out in-depth study and analysis, to find the weak link of transmission system presence, so that
The method of operation of Reasonable Regulation And Control power network, it is ensured that can be safely and steadily run in different developing stage power networks.
Current power network is main to be developed towards super-pressure, Large Copacity, the operation of remote AC/DC parallel, i.e.,
The transmission system of power network is mainly the hybrid power system of customary DC and flexible direct current.But, using mixed
Although the problem of direct current commutation easily fails caused by customary DC transmission system can be solved by closing transmission system, again
The problem of smaller transmission line capability caused by flexible direct current power transmission system and higher manufacturing cost can be solved, but adopt
With hybrid power system the operation and control of power network can be made to become complicated, if making in hybrid power system
The weak link present in hybrid power system can not be found in time during, influence power network is easy to
Safe operation.
The content of the invention
It is an object of the invention to provide it is a kind of mix transmission of electricity control protective unit analog quantity Transmission system and
Method, for finding the weak link present in hybrid power system in time, improves the safe operation of power network.
To achieve these goals, the present invention provides following technical scheme：
A kind of analog quantity Transmission system for mixing transmission of electricity control protective unit, including：Interface switching device,
Photoelectric conversion device, customary DC unit, flexible direct current unit, and for export ac analog and
The RTDS modeling workstations of DC analogue quantity；Wherein,
Interface switching device respectively with RTDS modeling workstations, customary DC unit and flexible direct current unit
Signal is connected；Interface switching device receives the ac analog of RTDS modeling workstations output, and will hand over
Flow field simulation amount is exported to customary DC unit and flexible direct current unit respectively；
Photoelectric conversion device respectively with RTDS modeling workstations, customary DC unit and flexible direct current unit
Signal is connected；Photoelectric conversion device receives the DC analogue quantity of RTDS modeling workstations output, and will be straight
Flow field simulation amount is exported to customary DC unit and flexible direct current unit respectively.
The analog quantity Transmission system for the mixing transmission of electricity control protective unit that the present invention is provided has following beneficial effect
Really：
The real-time simulation of RTDS modeling workstations has customary DC unit and flexible direct current unit in the present invention
Hybrid power system, in time find hybrid power system operation in the presence of weak link；
The analog quantity of required output is divided into ac analog and direct current after RTDS modeling workstation simulation process
Analog quantity, is then transmitted by different transmission routes：Ac analog passes through interface switching device
Concentration is exported to customary DC unit and flexible direct current unit respectively after collecting, and DC analogue quantity passes through photoelectricity
Conversion equipment is converted into after optical signal from electric signal and exported to customary DC unit and flexible direct current unit；Often
Rule direct current component and flexible direct current unit possess the function of being controlled and protect to transmission system, and the two is total to
With composition mixing transmission of electricity control protective unit.The simulation for the mixing transmission of electricity control protective unit that the present invention is provided
Measure Transmission system to transmit by the isolation to different analog quantitys, improve the anti-of analog quantity Transmission system itself
Interference, it is ensured that the precise delivery of analog quantity, analog quantity Transmission system imitates RTDS modeling workstations
The analog quantity precise delivery exported after true processing arrives customary DC unit and flexible direct current unit, it is ensured that mix
Close transmission of electricity control protective unit hybrid power system is controlled and protected in time, so as to improve power network
Safe operation.
Present invention also offers a kind of analog quantity transmission method for mixing transmission of electricity control protective unit, including such as
Lower step：
Step one, the real-time simulation of RTDS modeling workstations has customary DC unit and flexible direct current unit
Mixing transmission of electricity control protective unit, and ac analog is exported to interface switching device, filled to opto-electronic conversion
Put output DC analogue quantity；
Step 2, interface switching device is received after the ac analog of RTDS modeling workstations output,
Ac analog is exported to customary DC unit and flexible direct current unit respectively；Photoelectric conversion device is received
After the DC analogue quantity exported to RTDS modeling workstations, DC analogue quantity is exported respectively to conventional straight
Flow unit and flexible direct current unit.
It is beneficial achieved by the analog quantity transmission method for the mixing transmission of electricity control protective unit that the present invention is provided
Effect, the beneficial effect that can be reached with the above-mentioned analog quantity Transmission system for mixing transmission of electricity control protective unit
It is identical.The analog quantity transmission method for the mixing transmission of electricity control protective unit that the present invention is provided is built for RTDS
The different analog quantitys of mould work station output, using the transmission means of isolation transmission, by the mould of required transmission
Analog quantity precise delivery is to customary DC unit and flexible direct current unit, for ensureing mixing transmission of electricity control protection
Device is controlled and protected to hybrid power system in time, so as to improve the safe operation of power network.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes one of the present invention
Point, schematic description and description of the invention is used to explain the present invention, does not constitute to the present invention's
It is improper to limit.In the accompanying drawings：
Fig. 1 is the analog quantity Transmission system for the mixing transmission of electricity control protective unit that the embodiment of the present invention one is provided
Structural representation；
Fig. 2 is the analog quantity Transmission system for the mixing transmission of electricity control protective unit that the embodiment of the present invention two is provided
Structural representation.
Reference：
1-DB37 cables, 2- wires,
3-DB78 cables, 4- optical fiber.
Embodiment
For ease of understanding, with reference to Figure of description, to mixing transmission of electricity control provided in an embodiment of the present invention
The analog quantity Transmission system of protection device processed is described in detail.
Referring to Fig. 1, the analog quantity transmission for the mixing transmission of electricity control protective unit that the embodiment of the present invention one is provided
System, including：Interface switching device, photoelectric conversion device, customary DC unit, flexible direct current unit,
And for exporting the RTDS modeling workstations of ac analog and DC analogue quantity；Wherein,
Interface switching device respectively with RTDS modeling workstations, customary DC unit and flexible direct current unit
Signal is connected；Interface switching device receives the ac analog of RTDS modeling workstations output, and will hand over
Flow field simulation amount is exported to customary DC unit and flexible direct current unit respectively；
Photoelectric conversion device respectively with RTDS modeling workstations, customary DC unit and flexible direct current unit
Signal is connected；Photoelectric conversion device receives the DC analogue quantity of RTDS modeling workstations output, and will be straight
Flow field simulation amount is exported to customary DC unit and flexible direct current unit respectively.
When carrying out analog quantity transmission using the analog quantity Transmission system of said structure, RTDS modeling workstations are real
When hybrid power system of the emulation with customary DC unit and flexible direct current unit, export ac analog
To interface switching device, DC analogue quantity is exported to photoelectric conversion device, due to interface switching device difference
It is connected with RTDS modeling workstations, customary DC unit and flexible direct current cell signal, interface conversion dress
Put after the ac analog for receiving the output of RTDS modeling workstations, ac analog is exported to routine
Direct current component and flexible direct current unit；And photoelectric conversion device respectively with RTDS modeling workstations, routine
Direct current component and the connection of flexible direct current cell signal, photoelectric conversion device receive RTDS modeling workstations
After the DC analogue quantity of output, DC analogue quantity is exported to customary DC unit and flexible direct current unit.
The real-time simulation of RTDS modeling workstations has customary DC unit and flexible direct current unit in the present invention
Hybrid power system, in time find hybrid power system operation in the presence of weak link；
The analog quantity of required output is divided into ac analog and direct current after RTDS modeling workstation simulation process
Analog quantity, is then isolated by different transmission routes and transmitted；Customary DC unit and flexible direct current unit
Possesses the function of being controlled and protect to transmission system, the two collectively constitutes mixing transmission of electricity control protection dress
Put.The analog quantity Transmission system for the mixing transmission of electricity control protective unit that the present invention is provided passes through to different simulations
The isolation transmission of amount, improves the analog quantity Transmission system anti-interference of itself, it is ensured that the essence of analog quantity
Really transmission, analog quantity Transmission system is accurate by the analog quantity exported after RTDS modeling workstation simulation process
It is transferred to customary DC unit and flexible direct current unit, it is ensured that mixing transmission of electricity control protective unit is to mixing
Transmission system is controlled and protected in time, so as to improve the safe operation of power network.
In the embodiment of the present invention one, as shown in figure 1, RTDS modeling workstations include：For to mixed
Transmission system is closed to carry out simulation process and the processor board of ac analog and DC analogue quantity can be obtained；
The analog output card being connected with processor plate card signal, analog output card receives and exports exchange
Analog quantity and DC analogue quantity.Specifically, the processor board of RTDS modeling workstations is preferably board
PB5, analog output card is preferably board GTAO；Board PB5 can be used for handling various complicated
The circuit calculation and check of transmission system model and high intensity multinode, board GTAO is used for duplex high precision
Analog output.
With continued reference to Fig. 1, because RTDS modeling workstations separately transmit ac analog and DC analogue quantity,
And ac analog and DC analogue quantity possess different technical characteristics, therefore in the embodiment of the present invention one,
According to the different technologies characteristic of transmission analog quantity, the different transmission medium of corresponding selection, specifically, processing
Connected between device board and analog output card by the signal of optical fiber 4；Interface switching device and analog quantity
Between output board card, between interface switching device and customary DC unit, interface switching device and flexibility it is straight
Connected between stream unit by cable signal；Pass through between analog output card and photoelectric conversion device
Wire is connected, between photoelectric conversion device and customary DC unit, photoelectric conversion device and flexible direct current list
Connected between member by fiber-optic signal.
As shown in Fig. 2 the analog quantity of the mixing transmission of electricity control protective unit provided in the embodiment of the present invention two
In Transmission system, analog quantity Transmission system is connected up for convenience, it is preferred that the quantity of interface switching device
For two, one of interface switching device respectively with analog output card and customary DC cell signal
Connection, another interface switching device is connected with analog output card and flexible direct current cell signal respectively；
The quantity of photoelectric conversion device be two, one of photoelectric conversion device respectively with analog output card
With the connection of customary DC cell signal, another photoelectric conversion device respectively with analog output card and soft
Property the connection of direct current component signal.From two interface switching devices and two photoelectric conversion devices, make routine
Direct current component is connected with an interface switching device and a photoelectric converting device signal respectively, is made flexible straight
Stream unit is connected with an interface switching device and a photo-conversion device signal respectively, it is possible to reduce passed
The overlapping cabling of defeated circuit, convenient wiring.
It is different types of in ac analog or DC analogue quantity in order to reduce in the embodiment of the present invention two
It is interfering with each other between analog quantity, pass through DB37 cables between interface switching device and analog output card
1 signal is connected, between interface switching device and customary DC unit, interface switching device and flexible direct current list
Connected between member by the signal of DB78 cables 3.Provided with 16 signalling channels in DB37 cables 1,
Provided with 48 signalling channels in DB78 cables 3, different types of analog quantity passes through different signalling channels
Transmission, can be prevented effectively from signal interference each other.
According to the different running situations of different transmission systems, the exchange mould of output is needed after RTDS real-time simulations
The particular type and quantity of analog quantity and DC analogue quantity are different, therefore in the embodiment of the present invention two,
According to the ac analog and the type of DC analogue quantity required for customary DC unit and flexible direct current unit
And quantity, one end of each interface switching device passes through 3 DB37 cables 1 and analog output respectively
Card signal is connected；And in two interface switching devices, the other end of one of interface switching device passes through 1
Root DB78 cables 3 are connected with customary DC cell signal, and the other end of another interface switching device passes through
1 DB78 cable 3 is connected with flexible direct current cell signal.In the present embodiment two, due to customary DC
The type and quantity of analog quantity required for unit are more than flexible direct current unit, therefore, interface switching device
It is connected by 1 DB78 cable 3 with customary DC cell signal, needed for can meeting customary DC unit
The analog quantity transmission wanted, and another interface switching device passes through 1 DB78 cable 3 and flexible direct current list
During first signal connection, outside the analog quantity transmission required for meeting flexible direct current unit, it can there are many
Remaining idle channel.
Coordination control is carried out to customary DC unit and flexible direct current unit for convenience, in above-described embodiment
On the basis of the analog quantity Transmission system of the two mixing transmission of electricity control protective units provided, in addition to coordinate control
Unit processed, coordinates to connect by cable signal between control unit and interface switching device, coordinates control single
Connected respectively by fiber-optic signal between member and customary DC unit and flexible direct current unit.It is preferred that,
In above-described embodiment two, interface switching device is connected by 1 DB78 cable 3 and flexible direct current cell signal
When connecing, unnecessary idle channel can be there are, and the analog quantity needed for coordinating control unit is AC analogue
Amount, its negligible amounts, therefore coordination control unit and flexible direct current unit can share 1 DB78 cable 3,
The ac analog exported by different signalling channel receiving interface conversion equipments；Coordinate control unit with
By optical fiber transmission signal between customary DC unit and flexible direct current unit, during long-distance transmissions
With higher transmission rates, data exchange can be facilitated；Can also be according to reality in addition, coordinating control unit
Transmission control instruction is needed to carry out coordination control to customary DC unit and flexible direct current unit, such as routinely
Power distribution regulation between direct current component and flexible direct current unit etc., beneficial to the safe operation of power network.
The hybrid power system with customary DC unit and flexible direct current unit is controlled for convenience
Protection, in the embodiment two that the present invention is provided, customary DC unit specifically includes customary DC control dress
Put with customary DC protection device, flexible direct current unit specifically includes flexible direct current control device and flexibility is straight
Flow protection device；Wherein, customary DC control device respectively with interface switching device, photoelectric conversion device
With coordinate control unit signal connection, customary DC protection device also respectively with interface switching device, photoelectricity
Conversion equipment and the signal connection of coordination control unit；Flexible direct current control device respectively with interface switching device,
Photoelectric conversion device and the signal connection of coordination control unit, flexible direct current protection device also turn with interface respectively
Changing device, photoelectric conversion device and the signal connection of coordination control unit.In the above-described embodiments, will be conventional
Direct current component and control section in flexible direct current unit and protection portion separate from separating, and are independently set to control
Device processed and protection device, the analog quantity needed for can making control device and protection device are separately transmitted, it is to avoid
Analog quantity transmission is chaotic, is conducive to individually regulation and control.Control in customary DC unit and flexible direct current unit
Device can be controlled according to the analog quantity received to hybrid power system, adjust hybrid power system
In weak link, improve power network it is stable；Guarantor in customary DC unit and flexible direct current unit
Protection unit can be protected according to the analog quantity received to hybrid power system, improve the operation of power network
Safety.
It should be noted that analog output card output ac analog and DC analogue quantity it is specific
Type, should depending on the specific transmission system of RTDS real-time simulations, can by those skilled in the art according to
Concrete condition and experience the selection setting output of transmission system.
In the analog quantity Transmission system for the mixing transmission of electricity control protective unit that above-described embodiment two is provided, plate
Card GTAO is exported by interface switching device to be specifically included to the ac analog of customary DC control device
The change of current becomes net side three-phase voltage, the change of current and becomes net side three-phase current, change of current change Y/Y valves side three-phase current and change
Rheology Y/D valves side three-phase current etc..Board GTAO is exported by interface switching device and protected to customary DC
The ac analog of protection unit specifically includes the change of current and becomes Y/Y valves side three-phase current and change of current change Y/D valves side three
Phase current etc..Board GTAO exports the exchange mould to flexible direct current control device by interface switching device
Analog quantity with export identical to the ac analog of flexible direct current protection device, specifically include the change of current become net side three
Phase voltage, the change of current become net side three-phase current, converter transformer valve side three-phase voltage and converter transformer valve side three-phase current
Deng.Board GTAO is exported by interface switching device and specifically wrapped to the ac analog for coordinating control unit
Include big group of bus three-phase voltage of wave filter and the change of current becomes net side three-phase voltage etc..
In the analog quantity Transmission system for the mixing transmission of electricity control protective unit that above-described embodiment two is provided, plate
Card GTAO by photoelectric conversion device export DC analogue quantity to customary DC control device with export to
The DC analogue quantity of customary DC protection device is identical, specifically includes positive DC voltage, negative DC electricity
Pressure, positive DC electric current, negative DC electric current, neutral ground DC current and DC magnetic bias current etc..
Board GTAO exports DC analogue quantity and the output to flexible direct current control device by photoelectric conversion device
DC analogue quantity to flexible direct current protection device is identical, specifically includes positive DC voltage, negative DC
Voltage, positive DC electric current, negative DC electric current, connection become valve side neutral point current and connection change net side
Neutral point current etc..
If it is noted that hybrid power system only it is single operation hybrid power system in customary DC
When system or flexible direct current system, the mould that can still use the embodiment of the present invention one or embodiment two to provide
Analog quantity Transmission system carries out analog quantity transmission：During customary DC system in single operation hybrid power system,
The analog quantity transmission line of RTDS modeling workstations to customary DC unit is normally run, RTDS modeling works
Make station and be in idle condition to the analog quantity transmission line of flexible direct current unit；Single operation mixing transmission of electricity system
During flexible direct current system in system, the analog quantity transmission line of RTDS modeling workstations to flexible direct current unit
Normal operation, the analog quantity transmission line of RTDS modeling workstations to customary DC unit is in idle condition.
The embodiment of the present invention additionally provides a kind of analog quantity transmission method for mixing transmission of electricity control protective unit,
Specifically include following steps：
Step one, mixing of the RTDS modeling workstations emulation with customary DC unit and flexible direct current unit
Transmission system, and ac analog is exported to interface switching device, export direct current mould to photoelectric conversion device
Analog quantity；
Step 2, interface switching device is received after the ac analog of RTDS modeling workstations output,
Ac analog is exported to customary DC unit and flexible direct current unit respectively；Photoelectric conversion device is received
After the DC analogue quantity exported to RTDS modeling workstations, DC analogue quantity is exported respectively to conventional straight
Flow unit and flexible direct current unit.
Specifically, RTDS modeling workstations include processor board, and connect with processor plate card signal
The analog output card connect；Above-mentioned steps one are specifically included：Processor board enters to hybrid power system
Row emulation, obtains ac analog and DC analogue quantity；Analog output card reception processing device board is obtained
The ac analog and DC analogue quantity obtained, and ac analog is exported to interface switching device, will be straight
Flow field simulation amount is exported to photoelectric conversion device.
In the analog quantity transmission method of mixing transmission of electricity control protective unit provided in an embodiment of the present invention, pin
The different analog quantitys exported to RTDS modeling workstations, using the transmission means of isolation transmission, by institute
The analog quantity precise delivery that need to be transmitted is to customary DC unit and flexible direct current unit, for ensureing that mixing is defeated
Electric control protection device is controlled and protected to hybrid power system in time, so as to improve the safety of power network
Operation.
When the analog quantity Transmission system provided using the embodiment of the present invention one transmits analog quantity, the biography of analog quantity
Defeated to be embodied in, analog output card is exported ac analog to interface switching device by cable,
Interface switching device is respectively exported ac analog to customary DC unit and flexible direct current list by cable
Member；Analog output card is exported DC analogue quantity to photoelectric conversion device, opto-electronic conversion by wire
Device is exported DC analogue quantity to customary DC unit and flexible direct current unit by optical fiber.
When the analog quantity Transmission system provided using the embodiment of the present invention two transmits analog quantity, because of interface conversion
The quantity of device and photoelectric conversion device is two, and the transmission of analog quantity is embodied in, and analog quantity is defeated
Ac analog is exported and gives customary DC unit by ejecting plate card by an interface switching device, and analog quantity is defeated
Ac analog is exported to flexible direct current unit and coordinates to control by ejecting plate card by another interface switching device
Unit processed；Analog output card is exported DC analogue quantity to conventional straight by a photoelectric conversion device
Unit is flowed, analog output card is exported DC analogue quantity to flexibility by another photoelectric conversion device
Direct current component.
If being run wherein it is noted that the hybrid power system of customary DC and flexible direct current is only single
Customary DC system or flexible direct current system when, can still use the embodiment of the present invention one or embodiment
The two analog quantity Transmission systems provided carry out analog quantity transmission, and the transmission method of analog quantity is embodied in：
During customary DC system in single operation hybrid power system, RTDS modeling workstation real-time simulations
Customary DC system, the analog quantity transmission line of RTDS modeling workstations to customary DC unit is normally run：
Ac analog is exported by interface switching device gives customary DC unit, and DC analogue quantity is turned by photoelectricity
Changing device, which is exported, gives customary DC unit；The analog quantity of RTDS modeling workstations to flexible direct current unit is transmitted
Circuit is in idle condition.
During flexible direct current system in single operation hybrid power system, RTDS modeling workstation real-time simulations
Flexible direct current system, the analog quantity transmission line of RTDS modeling workstations to flexible direct current unit is normally run：
Ac analog is exported by interface switching device gives flexible direct current unit, and DC analogue quantity is turned by photoelectricity
Changing device, which is exported, gives flexible direct current unit；The analog quantity of RTDS modeling workstations to customary DC unit is transmitted
Circuit is in idle condition.
In the description of above-mentioned embodiment, specific features, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited to
In this, any one skilled in the art in the technical scope that the embodiment of the present invention is disclosed,
Change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, it is of the invention
Protection domain should be based on the protection scope of the described claims.
Claims (10)
1. a kind of analog quantity Transmission system for mixing transmission of electricity control protective unit, it is characterised in that including：
Interface switching device, photoelectric conversion device, customary DC unit, flexible direct current unit, and for defeated
Go out the RTDS modeling workstations of ac analog and DC analogue quantity；Wherein,
The interface switching device respectively with the RTDS modeling workstations, the customary DC unit and
The flexible direct current cell signal connection；The interface switching device receives the RTDS modeling workstations
The ac analog of output, and the ac analog is exported to the customary DC unit and institute respectively
State flexible direct current unit；
The photoelectric conversion device respectively with the RTDS modeling workstations, the customary DC unit and
The flexible direct current cell signal connection；The photoelectric conversion device receives the RTDS modeling workstations
The DC analogue quantity of output, and the DC analogue quantity is exported to the customary DC unit and institute respectively
State flexible direct current unit.
2. the analog quantity Transmission system of mixing transmission of electricity control protective unit according to claim 1, its
It is characterised by, the RTDS modeling workstations include：
For carrying out simulation process to hybrid power system and the ac analog and DC simulation can be obtained
The processor board of amount；
The analog output card being connected with the processor plate card signal, the analog output card connects
Receive and export the ac analog and DC analogue quantity.
3. the analog quantity Transmission system of mixing transmission of electricity control protective unit according to claim 2, its
It is characterised by, is connected between the processor board and the analog output card by fiber-optic signal；
Between the interface switching device and the analog output card, the interface switching device and institute
State between customary DC unit, between the interface switching device and the flexible direct current unit by electricity
Cable signal is connected；
Connected between the analog output card and the photoelectric conversion device by wire, the photoelectricity
Between conversion equipment and the customary DC unit, the photoelectric conversion device and the flexible direct current unit
Between connected by fiber-optic signal.
4. the analog quantity Transmission system of mixing transmission of electricity control protective unit according to claim 3, its
It is characterised by,
The quantity of the interface switching device be two, one of them described interface switching device respectively with institute
State analog output card and customary DC cell signal connection, another described interface switching device
It is connected respectively with the analog output card and the flexible direct current cell signal；
The quantity of the photoelectric conversion device be two, one of them described photoelectric conversion device respectively with institute
State analog output card and customary DC cell signal connection, another described photoelectric conversion device
It is connected respectively with the analog output card and the flexible direct current cell signal.
5. the analog quantity Transmission system of mixing transmission of electricity control protective unit according to claim 4, its
It is characterised by, passes through DB37 cable signals between the interface switching device and the analog output card
Connection, between the interface switching device and the customary DC unit, the interface switching device and institute
State and connected by DB78 cable signals between flexible direct current unit.
6. the analog quantity Transmission system of mixing transmission of electricity control protective unit according to claim 1, its
It is characterised by, the customary DC unit includes customary DC control device and customary DC protection device,
The flexible direct current unit includes flexible direct current control device and flexible direct current protection device；Wherein,
The customary DC control device is believed with the interface switching device and the photoelectric conversion device respectively
Number connection, the customary DC protection device is filled with the interface switching device and the opto-electronic conversion respectively
Confidence number is connected；
The flexible direct current control device is believed with the interface switching device and the photoelectric conversion device respectively
Number connection, the flexible direct current protection device is filled with the interface switching device and the opto-electronic conversion respectively
Confidence number is connected.
7. a kind of analog quantity transmission method for mixing transmission of electricity control protective unit, it is characterised in that including such as
Lower step：
Step one, mixing of the RTDS modeling workstations emulation with customary DC unit and flexible direct current unit
Transmission system, and ac analog is exported to the interface switching device, export straight to photoelectric conversion device
Flow field simulation amount；
Step 2, the interface switching device receives the exchange mould of the RTDS modeling workstations output
After analog quantity, the ac analog is exported to customary DC unit and flexible direct current unit respectively；It is described
Photoelectric conversion device is received after the DC analogue quantity of the RTDS modeling workstations output, will be described straight
Flow field simulation amount is exported to the customary DC unit and the flexible direct current unit respectively.
8. the analog quantity transmission method of mixing transmission of electricity control protective unit according to claim 7, its
Be characterised by, the RTDS modeling workstations include processor board, and with the processor board
The analog output card of signal connection；
The step one is specifically included：
The processor board is emulated to the hybrid power system, obtain the ac analog and
DC analogue quantity；
The analog output card receives the ac analog and DC simulation that the processor board is obtained
Amount, and the ac analog is exported to the interface switching device, the DC analogue quantity is exported
To the photoelectric conversion device.
9. the analog quantity transmission method of mixing transmission of electricity control protective unit according to claim 8, its
It is characterised by,
The ac analog is exported and filled to the interface conversion by the analog output card by cable
Put, the interface switching device is respectively exported the ac analog to the customary DC by cable
Unit and the flexible direct current unit；
The DC analogue quantity is exported and filled to the opto-electronic conversion by the analog output card by wire
Put, the photoelectric conversion device is exported the DC analogue quantity to the customary DC unit by optical fiber
With the flexible direct current unit.
10. the analog quantity transmission method of mixing transmission of electricity control protective unit according to claim 9,
Characterized in that,
The quantity of the interface switching device is two, and the analog output card described in one by connecing
Mouth conversion equipment exports the ac analog to the customary DC unit, the analog output
Card is exported the ac analog to the flexible direct current unit by interface switching device another described；
The quantity of the photoelectric conversion device is two, and the analog output card passes through the light
Electrical switching device exports the DC analogue quantity to the customary DC unit, the analog output
Card is exported the DC analogue quantity to the flexible direct current unit by photoelectric conversion device another described.
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