CN104767414B - A kind of redundancy control method of ISOP inverters combined system - Google Patents
A kind of redundancy control method of ISOP inverters combined system Download PDFInfo
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- CN104767414B CN104767414B CN201510118342.8A CN201510118342A CN104767414B CN 104767414 B CN104767414 B CN 104767414B CN 201510118342 A CN201510118342 A CN 201510118342A CN 104767414 B CN104767414 B CN 104767414B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/493—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
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Abstract
The invention discloses a kind of redundancy control method of ISOP inverters combined system, belong to the direct-current-alternating-current converter field of electrical energy changer.The method realizes that malfunctioning module is exited from system using the mode of bypass, whenj#Module breaks down when need to log off, and disconnects power output relayS j2, closure input power relayS j1, then it is capable of achieving the bypass of malfunctioning module, resistanceR j For limiting input derided capacitorsC dj On discharge current；Whenj#New module is ready, now disconnects input power relayS j1, closure power output relayS j2, then it is capable of achieving the online input of new module.The method provides accurate SECO figure, the hot plug of distribution ISOP inverter combined systems is completed, so as to be truly realized the lifting of reliability.
Description
Technical field
The present invention relates to a kind of input series and output parallel（ISOP）The redundancy control method of inverter combined system, belongs to
The direct-current-alternating-current converter field of electrical energy changer.
Background technology
Input series and output parallel（ISOP）Inverter combined system is applied to HVDC input, high current exchange output
Application scenario, the electrical system such as ship, high-speed electrified line, it has advantages below：ISOP inverter combined systems
In each module connected in input, the switching tube stress of module significantly reduces, convenient selection more suitably switching tube；Each module
Power there was only the 1/ of system powern（nIt is the module number in system）, it is more easy to realize modularization；The connection in series-parallel group of multimode
Conjunction can effectively improve the reliability of system.
In order to the reliability of real lifting system is it is necessary to realize the Redundant Control of system, realize that this target need to follow two
Step：First have to realize the distributed AC servo system of ISOP inverter combined systems, being secondly then will be on the basis of distributed system
Realize its redundancy i.e. warm connection function.
The content of the invention
In order to solve the problems, such as the redundancy hot plug of ISOP inverter combined systems, the present invention proposes a kind of ISOP inverters
The redundancy control method of combined system, can lift the reliability of ISOP inverter combined systems.
The present invention is adopted the following technical scheme that to solve its technical problem：
A kind of redundancy control method of ISOP inverters combined system, comprises the following steps：
（1）When distributed ISOP inverters combined system is normally run, input power relay is disconnectedS j1, closure output
Power relayS j2, closure three bus signaling switches, i.e. average current bus signaling switchS j3, input equalizing busbar signal
SwitchS j4And output voltage reference synchronization bus signaling switchS j5；
（2）When certain module of distributed ISOP inverters combined system breaks down, come real by the way of bypass
Now the malfunctioning module is exited, and realizes the bypass of malfunctioning module using redundancy sequential by digital signal processor, that is, work asj# moulds
Block breaks down when needing to be bypassed, and disconnects power output relayS j2, close input power relayS j1；Disconnect three mothers
Line signaling switch, i.e. average current bus signaling switchS j3, input equalizing busbar signaling switchS j4And output voltage reference synchronization
Bus signaling switchS j5；And block prime DC/DC converter and rear class it is straight-the switching tube drive signal of AC-AC converter；
（3）Whenj# new modules are ready, transported using the input of redundancy SECO new module by digital signal processor
OK, that is, input power relay is disconnectedS j1, close power output relayS j2；Closure bus signaling switch, that is, closeS j3, it is defeated
Enter equalizing busbar signaling switchS j4And output voltage reference synchronization bus signaling switchS j5；And enable prime DC/DC converter and
Rear class is straight-the switching tube drive signal of AC-AC converter.
The step（2）In use redundancy sequential realize that the bypass of malfunctioning module refers to, when digital signal processor is in T1
Moment detectsj# modules break down, block immediately DC/DC converter and rear class it is straight-switching tube of AC-AC converter drives letter
Number；At the T2 moment, three bus signaling switches, i.e. average current bus signaling switch are closedS j3, input equalizing busbar signal open
CloseS j4And output voltage reference synchronization bus signaling switchS j5；Provide closure input relay simultaneouslyS j1, disconnect output relayS j2Control signal；T3 moment power output relaysS j2Disconnect；T4 moment input power relaysS j1Closure, to be entered point
Voltage capacitanceC dj Discharge off, by-pass procedure terminates.
The step（3）In use redundancy SECO new module the finger that puts into operation, T5 moment Digital Signal Processing
Device closes output reference synchronizing bus-bar signaling switchS j5；The T6 moment provides disconnection input relayS j1Signal；T7 moment input works
Rate relayS j1Disconnect,jThe input derided capacitors voltage of # new modules rises；The T8 moment be given enable drive prime it is straight-straight conversion
Device and rear class be straight-control signal of AC-AC converter,jPressure is built in the output of # new modules therewith；T9 moment digital signal processors are detected
After output voltage reaches specified sinusoidal output, power output relay is just givenS j2The signal of closure；T10 moment power output after
Electrical equipmentS j2Closure, while giving average current bus signaling switchS j3With input equalizing busbar signaling switchS j4Signaling switch sends
Closure signal.
Beneficial effects of the present invention are as follows：
1st, malfunctioning module exits in proposing to realize distributed ISOP inverters combined system by the way of bypass.
2nd, accurate SECO figure is given, the hot plug of distribution ISOP inverter combined systems is completed, so that really
Realize the lifting of reliability.
Brief description of the drawings
Fig. 1 is the theory diagram of ISOP inverters combined system of the present invention, wherein：It is system input voltage；To be
System input current；--It is input derided capacitors；--It is input derided capacitors voltage steady-state value；--For
The input current steady-state value of each inverter module；--It is input derided capacitors electric current steady-state value；--It is each inversion
The output current of device module；It is system output voltage；It is system output current；S 11--S n1It is input power relay,S j1
It isjThe input power relay of # modules；R 1 --R n It is current-limiting resistance；S 12--S n2It is power output relay,S j2 It isj# moulds
The power output relay of block.It is above-mentionedjSpan be 1,2 ...,n。
Fig. 2 is single module main circuit diagram of the present invention, wherein：Forj# module input voltages；Forj# modules input electricity
Stream；Q 1-Q 4It is the switching tube of prime DC/DC converter；T j It is preceding stage high frequency isolating transformer；L dcj Forj# module prime filtered electricals
Sense；C dcj Forj# module prime filter capacitors；v dcj Forj# module prime output voltages；D 1-D 4For prime it is straight-straight inverter rectification
The diode of circuit；S1- S4For rear class it is straight-hand over the switching tube of inverter；L fj Forj# module rear class filtering inductance；C fj Forj# moulds
Block rear class filtering electric capacity；i Lfj Forj# module rear class filtering inductive currents；i Cfj Forj# module rear class filtering capacitance currents；It is mould
Block output current.It is above-mentionedjSpan be 1,2 ...,n。
Fig. 3 is the distributed structure/architecture and control block diagram of ISOP inverters combined system of the present invention, whereinS 13--S n3For average
Current bus bar signaling switch；S 14--S n4It is input equalizing busbar signaling switch；S 15--S n5For output voltage reference synchronization bus is believed
Number switch；It is output voltage reference data；-It is input derided capacitors instantaneous voltage；For input voltage is decayed
Coefficient；It is input grading ring proportional controller；--It is the DC error signal of each inverter module；It is output
Voltage close loop downsampling factor；It is output voltage proportional and integral controller；It is input voltage Setting signal；--For
The output signal of each inverter module output voltage regulator；It is average inductor current Setting signal, is also each inversion
The initial inductance given value of current signal of device module；-For each module output voltage regulator output signal with
Average signal；-It is each inverter module multiplier output signal；--It is the inductance electricity of each inverter module
Stream reference signal；--It is the inverse cascade outputting inductance current instantaneous value of each inverter module；--It is each inverter
The inverse cascade output capacitance current instantaneous value of module and；--It is the output voltage of each module
Sampled signal and；It is current inner loop downsampling factor；It is system load impedance, sCfIt is filtered electrical
The admittance of appearance.It is above-mentionedjSpan be 1,2 ...,n。
Fig. 4 is the inside composition of module of the present invention, whereinS j1Forj# module input power relays,S j2It is power output
Relay,S j3It is average current bus signaling switch,S j4It is input equalizing busbar signaling switch,S j5For output voltage benchmark is same
Step bus signaling switch,R j Forj# module current-limiting resistances,Forj# modules are input into derided capacitors.
Fig. 5 (a) is the timing diagram of bypass, and Fig. 5 (b) is the timing diagram of input.
Specific embodiment
The invention is described in further details below in conjunction with the accompanying drawings.
Distributed ISOP inverters combined system of the invention, includingnIndividual input series connection, the inverter mould of output-parallel
Block,nIt is the integer more than or equal to 2.Each module is made up of full-bridge direct current converter and full-bridge inverter cascade in system, entirely
The input of bridge DC converter as inverter module input, the output end of full-bridge inverter is used as inverter module
Output end.Each inverter module is respectively provided with oneself independent control loop, and output voltage reference synchronization is only passed through each other
Bus, input three buses of equalizing busbar and average current bus bar are communicated, and realize system modular and distributed AC servo system.
The theory diagram of input series and output parallel inverter system of the present invention as shown in figure 1, the system bynIt is individual
Standardized module is constituted.Whenj# modules break down when needing to be bypassed, and disconnect power output relayS j2, closure input power
RelayS j1, now use resistanceR j Limitation input derided capacitorsC dj Discharge current.Needing inputjDuring # new modules, disconnect
Input power relayS j1, closure power output relayS j2。
The structure chart of each module of input series and output parallel inverter system of the present invention as shown in Fig. 2 due to
Each module is cascaded structure in ISOP inverter systems, therefore each module must select isolated form topology.Here we use two-stage
Formula structure is the full-bridge DC-DC converter of high-frequency isolation as each module topology, prime, and rear class is full-bridge inverter.
Because the module of ISOP inverter combined systems is connected in input, so when certain module breaks down,
ISOP systems can not possibly be direct from input tip cut-off by malfunctioning module as IPOP systems.We use the side for bypassing herein
Formula is exited from system realizing malfunctioning module, therefore each module has an input power relayS j1, current-limiting resistanceR j
And power output relayS j2.Whenj#Module breaks down when need to log off, and disconnects power output relayS j2, close it is defeated
Enter power relayS j1, then the bypass of malfunctioning module is capable of achieving, here resistanceR j For limiting input derided capacitorsC dj On put
Electric current；Whenj#New module is ready, now disconnects input power relayS j1, closure power output relayS j2, then may be used
Realize the online input of new module.
For realize malfunctioning module by-pass procedure or new module input process take over seamlessly, it is necessary to for relevant control letter
Number break-make（Or block/enable）Sequential is rationally designed, and these control signals include following 7 kinds：Input-output power after
Electrical equipment（S j1WithS j2）Make-and-break signal, bus signaling switch（Average current bus signaling switchS j3, input equalizing busbar signal
SwitchS j4And output voltage reference synchronization bus signaling switchS j5）Make-and-break signal, module prime DC/DC converter and rear class
Directly-hand over inverter driving block/enable signal.Here the sequential of this 7 signals is successively carried out by digital signal processor
Real-time control, so that the hot plug process of ISOP inverters is able to steady and smoothly completes.
The distributed AC servo system theory diagram of ISOP inverter systems of the present invention is as shown in figure 3, each module is used
Output-voltage loop, current inner loop double -loop control, wherein current inner loop use Hysteresis control.Additionally, to realize that input is pressed
（IVS）, each module is with input grading ring.Therefore each module have its independent input grading ring, output-voltage loop,
Current inner loop, this ensure that the independent equity of intermodule, is truly realized modularization.Intermodule realizes letter by three buses
Breath interaction, i.e. output voltage reference synchronization bus signal（v ref synchronous bus）, input equalizing busbar（IVS bus）
And average current bus (i ave bus)。v ref Voltage reference synchronizing bus-bar signal provides benchmark for each module output voltage, and input is equal
Pressure bus realizes IVS with the input grading ring of each module.The output-voltage loop of each module produces initial inductance current reference signali gj , it is to obtain average current bus signal that the signal passes through averagely reari ave , bus signali ave With each module initial inductance electric current
Reference signali gj Inductive current benchmark average signal is obtained after averagedi gj_ave , the signal produces each through equiphase AM unit
The actual inductive current reference signal of modulei refj 。
Distributed AC servo system is realized, that realizes by redundancy real lifting ISOP inverter combined systems on this basis can
By property.Here signaling switch is introducedS j3、S j4WithS j5（Reference picture 3）, together with power relayS j1WithS j2（Reference picture 1）To realizejThe bypass of # modules or input.
The inside modules of ISOP inverter systems of the present invention are constituted as shown in figure 4, the signaling switch in figure is by mould
Intend switch CD4051 to realize, its response speed is quickly, it is believed that without delay.Digital signal processor DSP
The operation of TMS320F28027 monitoring modules, hot plug program is run when fault-signal is detected.Digital signal processor is removed
To be there is provided outside switch controlling signal to input-output power relay, bus signaling switch, also provide module prime it is straight-it is straight
Converter and rear class be straight-and the driving of handing over inverter blocks/enable signal.In order that the hot plug process of ISOP inverters is put down
It is steady and smoothly complete, it is necessary to accurate SECO.
The process of hot plug is controlled by digital signal processor, including two processes：Bypass and input.
The hot plug SECO figure of ISOP inverter systems of the present invention is as shown in figure 5, work as Digital Signal Processing
Device is detected at the T1 momentj# modules break down, then trigger bypass procedure.We are needed before the T1 moment blocks immediately first
Level, the driving of rear class.And then at the T2 moment, to avoid interference of the malfunctioning module to system busbar, we will in time close three
Individual bus signaling switch, i.e. average current bus signaling switchS j3, input equalizing busbar signaling switchS j4And output voltage benchmark
Synchronizing bus-bar signaling switchS j5.The T2 moment provides closure input relay simultaneouslyS j1, disconnect output relayS j2Control letter
Number.Because power relay operating lag, output relay are acted at the T3 moment, input relay is acted at the T4 moment, treats defeated
Enter derided capacitorsC dj Discharge off, system enters new stable state, then by-pass procedure terminates.
When new module is ready, digital signal processor then provides input order.The T5 moment closes output reference first
Synchronizing bus-bar signaling switchS j5So that new input module and bus reference synchronization.The T6 moment provides disconnection input relay signal,
And at the T7 moment, input relay disconnects,jThe input derided capacitors voltage of # modules rises.To accelerate input to a certain extent
Process, it would be desirable to reach certain voltage grade in input capacitance voltage（Less than module nominal input voltage, i.e. T8 moment）
When be given enable drive control signal.After having drive signal, pressure, digital signal processor one are built in input module output therewith
The straight sine degree in detection output, specified sinusoidal output is reached when output voltage is detected in T9 moment digital signal processors
Afterwards, the signal of output relay closure is just given.Because action postpones, output relay is same with this finally in T10 time of day response
When be given closure two signaling switchesS j3WithS j4Control signal.
The overall process of so far hot plug terminates, and system is normally run again.
Claims (2)
1. a kind of redundancy control method of ISOP inverters combined system, comprises the following steps：
（1）When distributed ISOP inverters combined system is normally run, input power relay is disconnectedS j1, close power output
RelayS j2, close three bus signaling switches, i.e. average current bus signaling switchS j3, input equalizing busbar signaling switchS j4And output voltage reference synchronization bus signaling switchS j5；
（2）When certain module of distributed ISOP inverters combined system breaks down, this is realized by the way of bypass
Exiting for malfunctioning module, the bypass of malfunctioning module is realized by digital signal processor using redundancy sequential, that is, work asj# modules are sent out
When raw failure needs to be bypassed, power output relay is disconnectedS j2, close input power relayS j1；Disconnect three bus letters
Number switch, i.e. average current bus signaling switchS j3, input equalizing busbar signaling switchS j4And output voltage reference synchronization bus
Signaling switchS j5；And block prime DC/DC converter and rear class it is straight-the switching tube drive signal of AC-AC converter；
（3）Whenj# new modules are ready, by digital signal processor putting into operation using redundancy SECO new module, i.e.,
Disconnect input power relayS j1, close power output relayS j2；Closure bus signaling switch, that is, closeS j3, input press
Bus signaling switchS j4And output voltage reference synchronization bus signaling switchS j5；And enable prime DC/DC converter and rear class
The switching tube drive signal of directly-AC-AC converter；
It is characterized in that：The step（2）In use redundancy sequential realize that the bypass of malfunctioning module refers to, work as Digital Signal Processing
Device is detected at the T1 momentj# modules break down, block immediately DC/DC converter and rear class it is straight-switching tube of AC-AC converter drives
Dynamic signal；At the T2 moment, three bus signaling switches, i.e. average current bus signaling switch are closedS j3, input equalizing busbar letter
Number switchS j4And output voltage reference synchronization bus signaling switchS j5；Provide closure input relay simultaneouslyS j1, disconnect output after
Electrical equipmentS j2Control signal；T3 moment power output relaysS j2Disconnect；T4 moment input power relaysS j1Closure, treats defeated
Enter derided capacitorsC dj Discharge off, by-pass procedure terminates.
2. a kind of redundancy control method of ISOP inverters combined system described in claim 1 is based on, it is characterised in that：
The step（3）In use redundancy SECO new module the finger that puts into operation, T5 moment digital signal processors close
Close output reference synchronizing bus-bar signaling switchS j5；The T6 moment provides disconnection input relayS j1Signal；T7 moment input power after
Electrical equipmentS j1Disconnect,jThe input derided capacitors voltage of # new modules rises；The T8 moment be given enable drive prime DC/DC converter and
Rear class is straight-control signal of AC-AC converter,jPressure is built in the output of # new modules therewith；T9 moment digital signal processors detect output
After voltage reaches specified sinusoidal output, power output relay is just givenS j2The signal of closure；T10 moment power output relaysS j2Closure, while giving average current bus signaling switchS j3With input equalizing busbar signaling switchS j4Signaling switch sends closure
Signal.
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| CN105186883A (en) * | 2015-11-06 | 2015-12-23 | 国网上海市电力公司 | Control method of input-series output-parallel (ISOP) converter system |
| CN105720612B (en) * | 2016-04-05 | 2021-10-29 | 全球能源互联网研究院有限公司 | Method for inhibiting commutation failure of high-voltage direct-current transmission based on power bypass |
| CN105958828B (en) * | 2016-04-22 | 2020-05-22 | 深圳英飞源技术有限公司 | DC-DC conversion circuit |
| CN107026580A (en) * | 2017-05-19 | 2017-08-08 | 南京理工大学 | A kind of output same-phase control method of ISOP distributed inverters system |
| CN108599607A (en) * | 2018-04-24 | 2018-09-28 | 西安理工大学 | A kind of principal and subordinate's redundancy control method of T-type three-level inverter parallel connection |
| CN110601521A (en) * | 2019-09-03 | 2019-12-20 | 中电普瑞科技有限公司 | Topological structure of power electronic transformer and control method thereof |
| CN115668685A (en) * | 2021-04-16 | 2023-01-31 | 东芝三菱电机产业系统株式会社 | Uninterruptible power supply device |
| EP4207567A1 (en) * | 2021-11-10 | 2023-07-05 | Contemporary Amperex Technology Co., Limited | Electrical system and electrical device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437738A (en) * | 2011-10-27 | 2012-05-02 | 华东交通大学 | Power supply system of high voltage direct transformation electrolytic power supply and method for realizing high voltage direct transformation electrolytic power supply |
| CN103269177A (en) * | 2013-04-27 | 2013-08-28 | 南京航空航天大学 | Distributed ISOP inverter and input voltage sharing and output same-amplitude control method thereof |
| CN103633623A (en) * | 2013-12-08 | 2014-03-12 | 中国科学院电工研究所 | High-voltage direct-current (DC) transformer and control method thereof |
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| US8227939B2 (en) * | 2009-06-11 | 2012-07-24 | Raytheon Company | Reconfigurable multi-cell power converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437738A (en) * | 2011-10-27 | 2012-05-02 | 华东交通大学 | Power supply system of high voltage direct transformation electrolytic power supply and method for realizing high voltage direct transformation electrolytic power supply |
| CN103269177A (en) * | 2013-04-27 | 2013-08-28 | 南京航空航天大学 | Distributed ISOP inverter and input voltage sharing and output same-amplitude control method thereof |
| CN103633623A (en) * | 2013-12-08 | 2014-03-12 | 中国科学院电工研究所 | High-voltage direct-current (DC) transformer and control method thereof |
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