CN103187860A - Fault-tolerant direct current (DC) power system - Google Patents
Fault-tolerant direct current (DC) power system Download PDFInfo
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- CN103187860A CN103187860A CN2011104534729A CN201110453472A CN103187860A CN 103187860 A CN103187860 A CN 103187860A CN 2011104534729 A CN2011104534729 A CN 2011104534729A CN 201110453472 A CN201110453472 A CN 201110453472A CN 103187860 A CN103187860 A CN 103187860A
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- contactor
- telecommunication
- active rectifier
- motor
- driven
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Abstract
The invention relates to a fault-tolerant direct current (DC) power system which comprises a permanent magnet generator (PMG), a first contactor which is electrically communicated with the PMG, an active rectifier which is electrically communicated with the first contactor, a second contactor which is electrically communicated with the first contactor and an electric motor which is electrically communicated with the second contactor. The first contactor is allocated to cut off electrical communication between the PMG and the active rectifier, and the second contactor is allocated to build electrical communication between the PMG and the electric motor.
Description
Technical field
Theme relate generally to power system disclosed herein field, and relate more particularly to fault-tolerant high voltage direct current (DC) power system.
Background technology
Usually, the DC power system comprises that generator and the alternating current (AC) that is configured to produce at the generator place be rectified into the rectifier of DC power.When one or more component faults, whole power system may be malfunctioning.This shows that power system is in the application of key component supply power therein, what may expect is increase power system fault-tolerant.
Summary of the invention
According to an aspect of the present invention, fault-tolerant DC power system comprise permanent magnet generator (PMG), with PMG carry out telecommunication first contactor, with first contactor carry out telecommunication active rectifier, carry out second contactor of telecommunication and carry out the motor-driven of telecommunication with second contactor with first contactor.First contactor is set to cut off the telecommunication between PMG and the active rectifier, and second contactor is configured to set up the telecommunication between PMG and the motor-driven.
According to a further aspect in the invention, fault-tolerant DC power system comprise permanent magnet generator (PMG), and PMG carry out telecommunication active rectifier, and active rectifier carry out the motor-driven of telecommunication and be arranged in a plurality of contactors that cut off the telecommunication between PMG and the active rectifier under the out of order situation of at least one assembly of active rectifier and be arranged to the telecommunication of setting up between PMG and the motor-driven.
According to a further aspect in the invention, a kind of method of controlling fault-tolerant DC power system, this DC power system comprises permanent magnet generator (PMG), carries out the active rectifier of telecommunication and carry out the motor-driven of telecommunication with active rectifier with PMG, wherein, this method comprises the operator scheme of determining system, if and at least one assembly of active rectifier breaks down, then the telecommunication reprovision of system is set to by motor-driven and walks around active rectifier.
The following explanation of carrying out in conjunction with the drawings, other side of the present invention, feature and technology will become more apparent.
Description of drawings
With reference now to accompanying drawing,, wherein, components identical is numbered in the same manner in a plurality of figure:
Fig. 1 illustrates the fault-tolerant DC power system according to exemplary embodiment; And
Fig. 2 illustrates the method according to the fault-tolerant DC power system of the control of exemplary embodiment.
Embodiment
The embodiment of DC power generation systems is provided in this article, exemplary embodiment has been discussed in more detail below.
Forward Fig. 1 to, illustrate fault-tolerant DC power system 100.System 100 can be the power system of vehicle (for example automobile, truck or other ground vehicle).
As Fig. 1 further shown in, system 100 can comprise with contactor R2 the fan 104 that communicates, further communicates with motor-driven 105.Motor-driven 105 can be any suitable motor-driven that is configured to such as the motor-driven load of fan 104 power supply.In addition, motor-driven 105 can be furnished with the intraware of arranging similarly with active rectifier.For example, active rectifier 102 and motor-driven 105 shown in the part similar a little.For example, motor-driven 105 comprises switch S
7～S
12, coupling capacitor C
DC2, filter inductance L
F2With filter capacitor C
F2Therefore, for the sake of brevity, the redundancy discussion of the assembly of abridged motor-driven 105 in this article.
As shown, system 100 also comprises the contactor R3 that communicates with PMG 101, contactor R1, contactor R2 and motor-driven 105.As arrange, contactor R3 can opened/closed PMG 101 with motor-driven 105 between be electrically connected and/or being electrically connected between opened/closed contactor R2 and the contactor R1.As further shown, system 100 comprises the contactor R5 that is arranged between motor-driven 105 and the load 103.Therefore, contactor R5 can opened/closed motor-driven 105 with load 103 between be electrically connected.
As mentioned above, system 100 comprises that the two carries out two a power transducer (for example, active rectifier 102 and motor-driven 105) of telecommunication with PMG 101 and load 103.According to exemplary embodiment, under the situation of the component faults in any part in system 100, contactor R1～R5 can be arranged as opened/closed and be electrically connected, thus reconfiguration system 100 and walk around faulty components and compare the fault that tolerance increases number with conventional system.Come the opened/closed of control contactor R1～R5 by system reconfiguration controller 107.System reconfiguration controller and active rectifier controller 106 and motor drive controller 106a communicate.The active rectifier controller provides gate signal with control active rectifier 102.Motor drive controller is configured to control the door driving of electric machine controller 105.
Be understood that to exist additional the supervision to connect in system 100, it omits from this figure for the purpose of understanding.For example, one or more in the controller 105～107 can receive and/or the voltage/current feedback is provided from/any assembly to the system 100, and according to any desired execution mode, can exist to promote the additional connection operated.Therefore, not should according to shown in particular form limit exemplary embodiment.
The illustrative methods of reshuffling of descriptive system 100 at length is provided hereinafter.
Forward Fig. 2 to, illustrate the method 200 of the fault-tolerant DC power system of control.Method 200 comprises the operator scheme of determining DC power system 100.For example, operator scheme can be at least four (4) the individual different operation modes one.These at least four operator schemes can comprise normal manipulation mode, motor-driven failed operation pattern, active rectifier failed operation pattern and PMG failed operation pattern.System reconfiguration controller 107 is configured to collect the state information that drives (for example, being used for fan 104) about PMG 101, fan 104, load 103, active rectification (102,105) and fan electromotor.Provide state information about PMG 101, load 103 and active rectification (102,105) by active rectifier controller 106.The state information that drives (for example, being used for fan 104) about fan 104, dc bus output (for example, at 102,105 places) and fan electromotor is provided by motor drive controller 105.Internal temperature by monitoring component, derive the fault mode of specifying in the said modules by power quality, PMG and fan stator electric current on the dc bus of using dc bus voltage and current sensor and/or load current.When determining system reconfiguration, can also use predictability health monitoring/forecast, make system reconfiguration controller 107 to come opened/closed contactor R1～R5 according to the operator scheme that hereinafter describes in detail at least.
Normal manipulation mode is the pattern that does not wherein have fault (or assembly of operation) at least in part in system in 100 ideally.Under normal manipulation mode, 102 pairs of loads of active rectifier, 103 power supplies, and 104 power supplies of 105 pairs of fans of rectifier/motor-driven.
Motor-driven failed operation pattern is the pattern that breaks down of motor-driven 105 or its part wherein.
Active rectifier failed operation pattern is the pattern that breaks down of active rectifier 102 or its part wherein.
PMG failed operation pattern is the pattern that breaks down of PMG 101 wherein.
According to the AD HOC of determining at square frame 201 places, can system's 100 reprovisions be set to overcome by applying signal to contactor R1～R5 by system reconfiguration controller 107 and overcome fault, as general introduction in following table 1:
Table 1:
| Operator scheme | R1 | R2 | R3 | R4 | R5 |
| Normally | Closed | Closed | Open | Closed | Closed |
| The motor-driven fault | Closed | Open | Open | Closed | Open |
| The active rectifier fault | Open | Open | Closed | Open | Closed |
| The PMG fault | Open | Open | Open | Open | Open |
As at table 1 set forth, determine each contact position among contactor R1～R5 by the operator scheme of system 100.During normal running, with contactor R1～R2 closure, contactor R3 opens, and with contactor R4～R5 closure.Under the situation of motor-driven fault, contactor R2 and R5 open with from fan 104 rupturing duties.It should be noted because contactor R2 and R5 open, so not to fan 104 power supplies.Yet, in the scope of the preferably operation of more crucial load (for example load 103), fan 104 is not considered as the critical loads/assembly of system 100.
Under the situation of active rectifier fault, contactor R3 is closed and open contactor R1～R2 and R4 to walk around active rectifier 102, from fan 104 rupturing duties, and allow motor-driven 105 carryings to carry out the responsibility of rectification from the power of PMG 101.
Under the situation of PMG fault, all contactor R1～R5 open, thereby from all component rupturing duty.
Therefore, as mentioned above, exemplary embodiment comprises fault-tolerant DC power system and to its method of controlling.According to the operator scheme of DC power system, the opened/closed contactor is to reshuffle the out of order assembly of power division/walk around.To be easy to recognize as those of ordinary skill in the art, allow fault-tolerant in the time of the weight that being added on of contactor reduced redundant or extra commutation system, cost and complexity.Therefore, by active rectifier and the motor-driven dual use of DC power system, the technique effect of exemplary embodiment and benefit comprise the fault tolerant operation of DC power system and the weight that reduces.
Term as used herein only is for the purpose of describing specific embodiment, and is not intended to limit the present invention.Though proposed explanation of the present invention for diagram and illustrative purposes, it is not intended is the present invention exclusiveness or that be confined to disclosed form.Under situation about not departing from the scope of the present invention with spirit, many modifications, variation, change, displacement and the equivalent arrangement of not describing will be apparent for the person of ordinary skill of the art so far.In addition, though described various embodiment of the present invention, be understood that aspect of the present invention can only comprise some among the described embodiment.Therefore, the present invention should be considered as being subjected to the restriction of above stated specification, but only be limited by the scope of claims.
Claims (16)
1. fault-tolerant DC power system comprises:
Permanent magnet generator (PMG);
Carry out first contactor of telecommunication with PMG;
Carry out the active rectifier of telecommunication with first contactor;
Carry out second contactor of telecommunication with first contactor; And
Carry out the motor-driven of telecommunication with second contactor;
Wherein, first contactor is configured to cut off the telecommunication between PMG and the active rectifier, and second contactor is configured to set up the telecommunication between PMG and the motor-driven.
2. the system of claim 1, wherein, described motor-driven comprises the active rectifier that is arranged in wherein.
3. the system of claim 1 also comprises:
Carry out the 3rd contactor of telecommunication with active rectifier; And
Carry out the load of telecommunication with the 3rd contactor.
4. the system of claim 3 also comprises:
Carry out the 4th contactor of telecommunication with motor-driven and load.
5. the system of claim 4, wherein, described the 3rd contactor is configured to cut off the telecommunication between active rectifier and the load, and the 4th contactor is configured to set up the telecommunication between motor-driven and the load.
6. the system of claim 5 also comprises:
Carry out the 5th contactor of telecommunication with motor-driven; And
Carry out the non-critical loads of telecommunication with the 5th contactor.
7. the system of claim 6, wherein, described the 5th contactor is configured to cut off the telecommunication between non-critical loads and the motor-driven.
8. the system of claim 6, wherein, under the situation of the fault of at least one assembly of active rectifier, first contactor, second contactor, the 3rd contactor, the 4th contactor and the 5th contactor are configured to walk around the power that produces at PMG and set up telecommunication between PMG and the load by motor-driven from active rectifier.
9. the system of claim 8, wherein, under the situation of the fault of at least one assembly of active rectifier, first contactor, second contactor, the 3rd contactor, the 4th contactor and the 5th contactor also are configured to cut off communicating by letter between non-critical loads and the motor-driven.
10. fault-tolerant DC power system comprises:
Permanent magnet generator (PMG);
Carry out the active rectifier of telecommunication with PMG;
Carry out the motor-driven of telecommunication with active rectifier; And
A plurality of contactors, it is arranged under the situation of at least one component faults of active rectifier and cuts off the telecommunication between PMG and the active rectifier and be arranged to the telecommunication of setting up between PMG and the motor-driven.
11. the system of claim 10 also comprises and active rectifier and motor-driven are carried out the load of telecommunication and be arranged in more than second contactor that cuts off the telecommunication between active rectifier and the load under the situation of at least one component faults of active rectifier.
12. the system of claim 10, also comprise the non-critical loads of carrying out telecommunication with motor-driven, wherein, described a plurality of contactor also is arranged in the telecommunication that cuts off under the situation of at least one component faults of active rectifier between non-critical loads and the motor-driven.
13. the method for the fault-tolerant DC power system of control, this DC power system comprise permanent magnet generator (PMG), carry out the active rectifier of telecommunication and carry out the motor-driven of telecommunication with active rectifier with PMG, this method comprises:
Determine the operator scheme of system; And
If at least one assembly of active rectifier breaks down, then the telecommunication reprovision of system is set to by motor-driven and walks around active rectifier.
14. the method for claim 13, wherein, reshuffle comprise cut off the telecommunication between PMG and the active rectifier and set up PMG and motor-driven between telecommunication.
15. the method for claim 13, wherein, system also comprises the load of carrying out telecommunication with active rectifier, and described method also comprises if at least one assembly of active rectifier breaks down, and then sets up telecommunication between PMG and the load by motor-driven.
16. the method for claim 15, wherein, system also comprises the non-critical loads of carrying out telecommunication with motor-driven, and this method also comprises if at least one assembly of active rectifier breaks down, and then cuts off the telecommunication between non-critical loads and the motor-driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104534729A CN103187860A (en) | 2011-12-30 | 2011-12-30 | Fault-tolerant direct current (DC) power system |
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| CN2011104534729A CN103187860A (en) | 2011-12-30 | 2011-12-30 | Fault-tolerant direct current (DC) power system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4947100A (en) * | 1989-10-16 | 1990-08-07 | Sundstrand Corporation | Power conversion system with stepped waveform inverter having prime mover start capability |
| CN1190161A (en) * | 1996-10-25 | 1998-08-12 | 戴姆勒－奔驰航天空中客车公司 | Power changing system for two-way changing between hydraulic energy and electric energy |
| CN101297454A (en) * | 2005-10-27 | 2008-10-29 | 法国空中客车公司 | Mixed device for controlling power transfer between two cores of a direct current network and supplying an alternating current motor |
| US7605483B2 (en) * | 2007-03-27 | 2009-10-20 | General Electric Company | Integrated electrical power extraction for aircraft engines |
| US7710081B2 (en) * | 2006-10-27 | 2010-05-04 | Direct Drive Systems, Inc. | Electromechanical energy conversion systems |
-
2011
- 2011-12-30 CN CN2011104534729A patent/CN103187860A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4947100A (en) * | 1989-10-16 | 1990-08-07 | Sundstrand Corporation | Power conversion system with stepped waveform inverter having prime mover start capability |
| CN1190161A (en) * | 1996-10-25 | 1998-08-12 | 戴姆勒－奔驰航天空中客车公司 | Power changing system for two-way changing between hydraulic energy and electric energy |
| CN101297454A (en) * | 2005-10-27 | 2008-10-29 | 法国空中客车公司 | Mixed device for controlling power transfer between two cores of a direct current network and supplying an alternating current motor |
| US7710081B2 (en) * | 2006-10-27 | 2010-05-04 | Direct Drive Systems, Inc. | Electromechanical energy conversion systems |
| US7605483B2 (en) * | 2007-03-27 | 2009-10-20 | General Electric Company | Integrated electrical power extraction for aircraft engines |
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Application publication date: 20130703 |