CN106468889A - A kind of Fast mechanical switch semi-physical emulation platform - Google Patents
A kind of Fast mechanical switch semi-physical emulation platform Download PDFInfo
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- CN106468889A CN106468889A CN201610803555.9A CN201610803555A CN106468889A CN 106468889 A CN106468889 A CN 106468889A CN 201610803555 A CN201610803555 A CN 201610803555A CN 106468889 A CN106468889 A CN 106468889A
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
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Abstract
The present invention relates to a kind of Fast mechanical switch semi-physical emulation platform, this emulation platform include an operation simulation software PC and one communicates, with described PC, the high-speed switch simulator being connected；Phantom is set up by described simulation software, described phantom includes the time speed change curves of high-speed switch control ＆ protection strategy, the program module of logical sequence and switch contact displacement transducer；Described high-speed switch simulator receive come from high-speed switch control protective unit point/reclosing command, and will divide/reclosing command is transferred to described PC；According to dividing/reclosing command generation simulation process data, high-speed simulation device receives described simulation process data, described simulation process data is processed, and is transmitted to described high-speed switch control protective unit for described simulation software.This emulation platform disclosure satisfy that high speed machine switching simulator state change emulation demand, and cost is relatively low, and cost performance is high.
Description
Technical field
The present invention relates to a kind of Fast mechanical switch semi-physical emulation platform, belong to dc circuit breaker technical field.
Background technology
Fast mechanical switch is important element in dc circuit breaker, and its structure and control relay protective scheme are complicated, work
Need to carry out the emulation of reality before journeyization application.In electric system simulation, conventional tool equipment is that RTDS/RT-LAB numeral is imitative
True instrument.
RTDS/RT-LAB (Real Time Digital Simulator) is a kind of real-time all-digital electro-magnetic transient power system simulation device,
Using advanced software and hardware technology, ac and dc systemses accurately can be emulated in real time, but expensive, hundreds thousand of
Dollar.
Content of the invention
It is an object of the invention to provide a kind of Fast mechanical switch semi-physical emulation platform, for providing a kind of novel practical
Emulation platform, to solve the problems, such as the emulation high cost of Fast mechanical switch.
For solving above-mentioned technical problem, the invention provides a kind of Fast mechanical switch semi-physical emulation platform, this emulation
Platform includes PC and high-speed switch simulator being connected with described PC communication of an operation simulation software；By institute
State simulation software and set up phantom, described phantom includes the program mould of high-speed switch control ＆ protection strategy, logical sequence
The time speed change curves of block and switch contact displacement transducer；Described high-speed switch simulator receives and comes from one
High-speed switch control protective unit point/reclosing command, and will divide/reclosing command is transferred to described PC；Described simulation software root
According to dividing/reclosing command generation simulation process data, high-speed simulation device receives described simulation process data, to described simulation process
Data is processed, and is transmitted to described high-speed switch control protective unit.
Further, described simulation software is PSCAD or MATLAB.
Further, described PC is communicated with described high-speed switch simulator by serial ports.
Further, described simulation process data includes on off state, displacement curve, switch ends electric current and coil drive
Circuit voltage.
Further, described high-speed switch simulator includes a communication board, described communication board is used for obtaining, parses,
Store and send the simulation process data being sended over by described PC；Described simulator also includes switching displacement output board, electricity
Pressure output board, electric current output board, wave record playback plate and quick I O board.
Further, described switch displacement output board receives the switching-state information of described communication board and is transmitted to described fast
Fast on-off control protection device.
Further, described voltage output plate receives the digital voltage amount of described communication board, and converts thereof into analog quantity
Export to described high-speed switch control protective unit；Described electric current output board receives the digital current amount of described communication board, and will
It changes analog output into described high-speed switch control protective unit.
Further, described wave record playback plate is used for the simulation process data after described high-speed simulation device is processed
Carry out recording ripple and playback.
Further, described quick I O board be used for receiving high-speed switch control protective unit point/reclosing command, and forward
To described communication board.
Further, described high-speed switch simulator also includes a backboard, and described switch displacement output board, voltage are defeated
Ejecting plate, electric current output board, wave record playback plate and quick I O board are connected on described backboard, by described backboard and described communication board
Communicated.
The invention has the beneficial effects as follows：Provide a kind of Fast mechanical switch semi-physical emulation platform, by using emulation
Phantom set up by software, and the simulation process data is activation that phantom is generated is to high-speed switch simulator, high-speed switch
Simulation process data after processing is dealt into a high-speed switch control protective unit by simulator, finally realizes simulated effect.
This emulation platform can meet the demand that high-volume mechanical switch control device tests user, emulator that need not be expensive, only
A computer and a high-speed switch simulator is needed to can achieve, relatively low cost, cost performance is high.
Brief description
Fig. 1 is emulation platform system building block diagram；
Fig. 2 is high-speed switch simulator configuration figure；
Fig. 3 is that dc circuit breaker turns off simulation process figure；
Fig. 4 is high-speed switch simulator signal transmission.
Specific embodiment
Specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.
In the present embodiment, the PSCAD that Fast mechanical switch semi-physical emulation platform system is installed by computer or server
Software+serial communication modular, high-speed switch simulator, high-speed switch control protective unit and computer monitor backstage composition, imitate
It is as shown in Figure 1 that true plateform system builds block diagram.Wherein, computer PSCAD software passes through serial communication modular and high-speed switch emulation
Device is communicated, and high-speed switch control protective unit sends trigger and I/O information to high-speed switch simulator, and
Receive from the voltage/current of high-speed switch simulator and I/O information, computer monitor backstage adopt RJ45 serial ports with quick
On-off control protection device is communicated.Wherein, PSCAD+ serial communication modular and high-speed switch simulator together form
Fast mechanical switch semi-physical emulation platform.
Below each device in above-mentioned emulation platform system or module are further described in detail.
1st, PSCAD+ serial communication modular
PSCAD, as more common power system simulation software, is a kind of advanced power system mesomeric state, transient emulation work
Tool, it is adaptable to theoretical property emulation, belongs to prior art.In the present embodiment, PSCAD is mainly used in setting up phantom, also may be used
Substituted with the other software of required modeling function in Matlab or achievable the present embodiment.Serial communication modular is adopted
With instruments such as VC, serial communication function is write on windows platform, be mainly used in realizing PSCAD and high-speed switch simulator
Between serial communication.Certainly, other communication interfaces may also be employed to realize the letter between PSCAD and high-speed switch simulator
Breath exchanges.
2nd, high-speed switch simulator
High-speed switch simulator is the hardware components of Fast mechanical switch semi-physical emulation platform, by communication board, switch
The functional units such as displacement output board, quick I O board, voltage output plate, electric current output board and wave record playback plate form, as Fig. 2 institute
Show, wherein：
Communication board is used for being responsible for management and the communication of high-speed switch simulator, by interacting with serial communication modular
Communication, the serial ports such as the on off state downloaded from PSCAD, displacement curve, switch ends electric current and coil driver voltage are led to
Letter content is parsed, and stores in SD card；By backboard, the serial communication classifying content after parsing is sent to soon simultaneously
The miscellaneous part of speed switch simulator.
Switch displacement output board reception is from the switching-state information of communication board, and controls guarantor by optical fiber with high-speed switch
Protection unit is communicated, and switch contact is accelerated, deceleration displacement information is sent to high-speed switch control protective unit.
Voltage output plate is responsible for receiving the digital voltage amount of communication board, and digital quantity is converted into analog output to quick
The voltage measurement board of on-off control protection device.
Electric current output board is responsible for receiving the digital current amount of communication board, and digital quantity is converted into analog output to quick
The current measurement board of on-off control protection device.
Wave record playback plate is used for the on-off model such as the analog quantitys such as voltage x current and on off state being carried out record ripple and playback,
It is debugging and accident analysis offer foundation.
Quick I O board is used for receiving the high-speed switch division signal of high-speed switch control protective unit, by high-speed switch division
Signal is sent to communication board by backboard.
Backboard is responsible for communication board, switch displacement output board, quick I O board, voltage output plate, electric current output board and record ripple
Signal transmission between the functional units such as playback plate.
Fig. 3 gives the signal transmission situation of high-speed switch simulator, is received by communication board and is derived from simulation software PC
The simulation process data such as the on off state, displacement curve, switch ends electric current and the coil driver voltage that are sent, and communicate
It is then that letter is realized by backboard between plate, voltage output plate, electric current output board, switch displacement output board and wave record playback plate
Breath exchanges.
It is more than a kind of concrete structure of high-speed switch simulator, formed by multiple boards.As other embodiment,
Other constituted modes can also be adopted, such as one piece board completes the function of above-mentioned each board.
3rd, high-speed switch control protective unit and monitoring backstage
High-speed switch control protective unit and monitoring backstage belong to tested test system, are not belonging to Fast mechanical switch half in kind
Emulation platform.
At present, the dc circuit breaker in high voltage large capcity flexible direct current power transmission system forms and is divided into three parts, through-flow
Road, transfer branch road and MOV energy absorption branch road.Wherein through-flow route Fast mechanical switch and through-flow branch road IGBT module group
Become, transfer branch road includes several and shifts branch road IGBT module.The high-speed switch action cycle of dc circuit breaker is short, can 3～
5ms internal cutting off electric current.The present invention is exactly that the one kind designing for solving dc circuit breaker control protective unit simulation problems is quick
Mechanical switch semi-physical emulation platform.Below taking the Fast mechanical switch HWIL simulation in dc circuit breaker as a example, illustrate imitative
True platform technology flow process：
(1) issue point/close a floodgate order to high-speed switch control protective unit by monitoring backstage, high-speed switch controls protection dress
Put and the order that divides/close a floodgate receiving is transferred to the quick I O board of high-speed switch simulator, quick I O board will divide/close a floodgate order to turn
Issue the communication board of high-speed switch simulator, communication board will divide/close a floodgate order to be sent to simulation software PSCAD by serial ports.
(2) phantom is set up by PSCAD, writes the program module of high-speed switch control ＆ protection strategy and logical sequence,
And set up two-dimentional Fast mechanical switch displacement data memorizer, represent switch contact displacement transducer with two dimensional memory data
Time speed change curves.
(3) with instruments such as VC, Serial Port Communication Software function is write on windows platform, by calling string in PSCAD
Port communications software function is by simulation process numbers such as on off state, displacement curve, switch ends electric current and coil driver voltages
According to being sent to high-speed switch simulator.
(4) the simulation process data downloaded from PSCAD is parsed by the communication board of high-speed switch simulator, and stores
To in SD card, on off state and displacement curve information are sent to respectively by switch displacement output board by backboard simultaneously, will switch
Two ends electric current is sent to electric current output board, and coil driver voltage is sent to voltage output plate.
(5) switch displacement output board is processed to the on off state receiving and displacement curve, obtains switch contact and adds
Speed, deceleration displacement information, and high-speed switch control protective unit is sent to by optical fiber；Voltage output plate is by the numeral receiving
Amount voltage conversion becomes analog quantity voltage, and is sent to the voltage measurement board of high-speed switch control protective unit；Electric current output board
The digital quantity receiving electric current is converted into analog quantity electric current, and is sent to the current measurement plate of high-speed switch control protective unit
Card；Wave record playback plate is used for the acceleration of analog quantity voltage, analog quantity electric current and switch contact, deceleration displacement information are carried out recording ripple
And playback.
(6) high-speed switch control protective unit sends over according to high-speed switch simulator switch motion flow process and change
Change, start record ripple, and the communication with computer monitor backstage, reported event information are realized by RJ45 serial ports, finally realize to fast
The test function of fast mechanical switch.
Fig. 4 gives under this emulation platform, the action emulation process of the Fast mechanical switch separating brake of dc circuit breaker.?
The t0 moment is short-circuited fault, this short trouble is detected to the t1 moment, dc circuit breaker starts disjunction, t2 moment direct current interruption
Transfer branch road IGBT is open-minded for device, cocurrent flow branch road IGBT locking, and t3 moment Fast mechanical switch starts separating brake, and t4 moment locking is shifted
Branch road IGBT, t5 moment energy absorption branch road turns on, and starts to consume fault current, it is complete that t6 moment dc circuit breaker opens a sluice gate disjunction
Become.Wherein, the t0-t1 time period is failure detection time, and the t1-t5 time period is dc circuit breaker time to chopping, the t5-t6 time period
For short circuit energy dissipation time.If chopper disjunction start time t1=0ms, then as shown in Figure 4, dc circuit breaker transfer branch road
IGBT opens moment t2=0.1ms, and Fast mechanical switch starts separating brake moment t3=0.3ms, and the branch road IGBT moment is shifted in locking
T4=2.8ms, energy absorption branch road turn-on instant t5=3ms.
In the present embodiment, within the communication frequency of high-speed switch simulator and PSCAD model can accomplish 5ms, soon
Speed switch simulator passes through constant time lag, can receive enough Frames, completes corresponding action change output, can meet fast
Speed switch simulator state change emulation demand.In addition, the Fast mechanical switch semi-physical emulation platform in the present embodiment becomes
, less than RTDS/RT-LAB Digital Simulation instrument 1/10th, cost performance is high for this, can meet high-volume mechanical switch control device
The demand of test user.
Claims (10)
1. a kind of Fast mechanical switch semi-physical emulation platform it is characterised in that this emulation platform include one run emulation soft
The high-speed switch simulator that PC and of part is connected with described PC communication；Emulation mould is set up by described simulation software
Type, described phantom includes high-speed switch control ＆ protection strategy, the program module of logical sequence and switch contact displacement and passes
The time speed change curves of sensor；Described high-speed switch simulator receives and comes from a high-speed switch control protective unit
Point/reclosing command, and will divide/reclosing command is transferred to described PC；Described simulation software according to point/reclosing command generate emulation
Process data, high-speed simulation device receives described simulation process data, described simulation process data is processed, and is transmitted to
Described high-speed switch control protective unit.
2. Fast mechanical switch semi-physical emulation platform according to claim 1 is it is characterised in that described simulation software is
PSCAD or MATLAB.
3. Fast mechanical switch semi-physical emulation platform according to claim 1 is it is characterised in that described PC passes through serial ports
Communicated with described high-speed switch simulator.
4. Fast mechanical switch semi-physical emulation platform according to claim 1 is it is characterised in that described simulation process number
According to inclusion on off state, displacement curve, switch ends electric current and coil driver voltage.
5. Fast mechanical switch semi-physical emulation platform according to claim 4 is it is characterised in that described high-speed switch is imitated
True device includes a communication board, and described communication board is used for obtaining, parse, store and send the emulation being sended over by described PC
Process data；Described simulator also include switch displacement output board, voltage output plate, electric current output board, wave record playback plate and
Quick I O board.
6. Fast mechanical switch semi-physical emulation platform according to claim 5 is it is characterised in that described switch displacement is defeated
Ejecting plate receives the switching-state information of described communication board and is transmitted to described high-speed switch control protective unit.
7. Fast mechanical switch semi-physical emulation platform according to claim 5 is it is characterised in that described voltage output plate
Receive the digital voltage amount of described communication board, and convert thereof into analog output to described high-speed switch control protective unit；
Described electric current output board receives the digital current amount of described communication board, and is changed into analog output to described high-speed switch control
Protection device processed.
8. Fast mechanical switch semi-physical emulation platform according to claim 5 is it is characterised in that described wave record playback plate
For carrying out recording ripple and playback to the simulation process data after described high-speed simulation device is processed.
9. Fast mechanical switch semi-physical emulation platform according to claim 5 is it is characterised in that described quick I O board is used
In receive high-speed switch control protective unit point/reclosing command, and be transmitted to described communication board.
10. Fast mechanical switch semi-physical emulation platform according to claim 5 is it is characterised in that described high-speed switch
Simulator also includes a backboard, described switch displacement output board, voltage output plate, electric current output board, wave record playback plate and
Quick I O board is connected on described backboard, is communicated with described communication board by described backboard.
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| CN109687437A (en) * | 2018-12-18 | 2019-04-26 | 国家电网有限公司 | A kind of electrical simulation method of the exchange energy-consuming device of flexible DC transmission |
| CN109687437B (en) * | 2018-12-18 | 2020-08-11 | 国家电网有限公司 | Electrical simulation method of alternating current energy consumption device for flexible direct current transmission |
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