CN108494241A - A kind of double three-phase machine system and failure tolerant circuit - Google Patents
A kind of double three-phase machine system and failure tolerant circuit Download PDFInfo
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- CN108494241A CN108494241A CN201810415277.9A CN201810415277A CN108494241A CN 108494241 A CN108494241 A CN 108494241A CN 201810415277 A CN201810415277 A CN 201810415277A CN 108494241 A CN108494241 A CN 108494241A
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- Prior art keywords
- power tube
- bridge arm
- tie point
- power
- phase
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Classifications
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M7/53—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/22—Multiple windings; Windings for more than three phases
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The present invention relates to a kind of double three-phase machine system and failure tolerant circuits, and a redundancy bridge arm is added in each inverter circuit, and when open fault occurs in certain bridge arm, redundancy bridge arm comes into operation, and substitute failure bridge arm, realize faults-tolerant control.Therefore, even if a certain bridge arm breaks down, circuit still can realize normal driving with normal operation, promote circuit reliability.Moreover, failure tolerant circuit structure is simple, the inverter circuit that basis is double three-phase machine is improved, power device quantity and cost increase are limited, and sexual valence is relatively high, and correspondingly control is safe and reliable.Therefore, even if in case of a fault, to the connection of machine winding there is no limit.In addition, when having at least two bridge arms open fault occur in some inverter circuit, the inverter circuit of failure is out of service, and the method for operation of motor is changed into the switch powered operation mode of three-phase six and run, and the reliability of failure tolerant circuit is increased.
Description
Technical field
The present invention relates to a kind of double three-phase machine system and failure tolerant circuits, belong to the control of double three-phase machine failure tolerant
Technical field.
Background technology
As energy crisis and problem of environmental pollution become increasingly conspicuous, electric vehicle is as solution environmental pollution and energy crisis
Effective way, be increasingly becoming the hot spot of home and abroad research and development.Inverter is the weak ring in drive system of electric automobile
Section, the power tube of inverter easily break down, and inverter, which breaks down, can influence the normally travel of electric vehicle.Therefore, it is
Solution such case, domestic and international researcher propose various fault-toleranr techniques, with the stability of maintenance system.But it is most such
Technology is based on a kind of single fault-tolerant architecture, moreover, existing be exclusively used in double-winding motor, i.e., double three-phase machine is fault-tolerant
Circuit structure is more complicated, lacks certain reliability, or reduces the performance of system, cannot meet be based on to a certain extent
The drive system of electric automobile high reliability of double three-phase machine and the requirement of high stability.
Invention content
The object of the present invention is to provide a kind of double three-phase machine failure tolerant circuits, to solve existing double three-phase machine
The more complicated problem of fault tolerable circuit structure.Present invention simultaneously provides a kind of double three-phase machine systems.
To achieve the above object, the present invention includes following technical scheme.
The application of a kind of double three-phase machine failure tolerant circuit, the fault tolerable circuit is double three-phase machine, described double
Three phase electric machine have first set winding and second set winding, the first set winding including the first phase winding, the second phase winding and
Third phase winding, second set of winding include the 4th phase winding, the 5th phase winding and the 6th phase winding, the failure tolerant electricity
Road includes the first inverter circuit and the second inverter circuit.
First inverter circuit includes the first bridge arm being arranged in parallel, the second bridge arm, third bridge arm and four bridge legs, institute
It states string on the first bridge arm and is equipped with the first power tube and the second power tube, string is equipped with third power tube and the 4th on second bridge arm
Power tube, string is equipped with the 5th power tube and the 6th power tube on the third bridge arm, and string is equipped with the 7th work(on the four bridge legs
The tie point of rate pipe and the 8th power tube, first power tube and the second power tube is for connecting first phase winding, institute
The tie point of third power tube and the 4th power tube is stated for connecting second phase winding, the 5th power tube and the 6th work(
The tie point of rate pipe is for connecting the third phase winding, the tie point of first power tube and the second power tube and described the
The tie point of seven power tubes and the 8th power tube by the first control switch connection, the third power tube and the 4th power tube
Tie point passes through the second control switch connection, the 5th power tube with the tie point of the 7th power tube and the 8th power tube
Switch connection is controlled by third with the tie point of the 7th power tube and the 8th power tube with the tie point of the 6th power tube；
Second inverter circuit includes the 5th bridge arm, the 6th bridge arm, the 7th bridge arm and the 8th bridge arm being arranged in parallel, institute
It states on the 5th bridge arm string and is equipped with the 9th power tube and the tenth power tube, string is equipped with the 11st power tube and the on the 6th bridge arm
12 power tubes, string is equipped with the 13rd power tube and the 14th power tube on the 7th bridge arm, goes here and there and sets on the 8th bridge arm
There are the 15th power tube and the 16th power tube, the tie point of the 9th power tube and the tenth power tube is for connecting described the
The tie point of four phase windings, the 11st power tube and the 12nd power tube is for connecting the 5th phase winding, and described the
The tie point of 13 power tubes and the 14th power tube is for connecting the 6th phase winding, the 9th power tube and the tenth work(
The tie point of rate pipe is connected with the tie point of the 15th power tube and the 16th power tube by the 4th control switch, described
The tie point of 11st power tube and the 12nd power tube is logical with the tie point of the 15th power tube and the 16th power tube
Cross the 5th control switch connection, the tie point of the 13rd power tube and the 14th power tube and the 15th power tube and
The tie point of 16th power tube passes through the 6th control switch connection.
First, the failure tolerant circuit structure that this programme provides is simple, improves the inversion electricity that basis is double three-phase machine
A redundancy bridge arm is added on road in each inverter circuit, although compared to traditional inverter circuit, in structure not
Very big change is done, still, but very rationally, power device quantity and cost increase are limited, and sexual valence is relatively high, correspondingly controls for design
System is safe and reliable.Moreover, circuit work normally when, the first bridge arm, the second bridge arm, third bridge arm, the 5th bridge arm, the 6th bridge arm and
7th bridge arm is run, and gives two winding powers of motor, four bridge legs, the 8th bridge arm and each control switch not to work, power electric
Pond driving function is realized by the circuit；When there is open fault there are one bridge arm at least one inverter circuit, occur
Two power tubes in the bridge arm of failure are out of service, and control corresponding with the failure bridge arm switch and four bridge legs and/
Or the 8th bridge arm put into operation, constitute failure bridge arm redundant circuit put into operation, realize faults-tolerant control.Therefore, even if it is a certain
Bridge arm breaks down, and circuit still can realize normal driving with normal operation, promote circuit reliability.Therefore, even if in failure
In the case of, to the connection of machine winding, there is no limit as long as be forwarded to the switching drive signal that should be dealt into failure bridge arm originally
Four bridge legs or the 8th bridge arm, control is simple, and safe and reliable, and motor remains as double three phase supply symmetrical operation modes,
Property indices are as before failure generation.In addition, when there is at least two bridge arms open circuit event occur in some inverter circuit
When barrier, the inverter circuit of failure is out of service, and the method for operation of motor is changed into the switch powered operation mode of three-phase six and transported
Row, increases the reliability of failure tolerant circuit.
Further, first bridge arm, the second bridge arm, third bridge arm, the 5th bridge arm, the 6th bridge arm and the 7th bridge arm
Both ends are both provided with fuse.
When there is short trouble in a certain bridge arm, the power tube on corresponding bridge arm, two fuses and vehicle on the bridge arm
It carries accumulator to be just formed into a loop, because overcurrent is blown, which is disconnected from the circuit for two fuses, and short trouble is from turn
Open fault is turned to, open-circuit fault of power tubes fault-tolerant strategy is recycled to carry out faults-tolerant control.So the first bridge arm, the second bridge arm,
Third bridge arm, the 5th bridge arm, the 6th bridge arm and the 7th bridge arm increase fuse, are used for when short trouble occurs for power tube,
Quickly corresponding bridge arm is disconnected from the circuit, protects circuit other elements not to be damaged, and realize faults-tolerant control.
Further, the first control switch, the second control switch, third control switch, the 4th control switch, the 5th
Control switch and the 6th control switch are bidirectional thyristor.
Further, first power tube, the second power tube, third power tube, the 4th power tube, the 5th power tube,
6th power tube, the 7th power tube, the 8th power tube, the 9th power tube, the tenth power tube, the 11st power tube, the 12nd work(
Rate pipe, the 13rd power tube, the 14th power tube, the 15th power tube and the 16th power tube are IGBT, and reversed
It is parallel with corresponding diode.
A kind of double three-phase machine system, including double three-phase machine and failure tolerant circuit, the double three-phase machine have the
A set of winding and second set of winding, the first set winding includes the first phase winding, the second phase winding and third phase winding, described
Second set of winding includes the 4th phase winding, the 5th phase winding and the 6th phase winding, and the failure tolerant circuit includes the first inversion
Circuit and the second inverter circuit.
First inverter circuit includes the first bridge arm being arranged in parallel, the second bridge arm, third bridge arm and four bridge legs, institute
It states string on the first bridge arm and is equipped with the first power tube and the second power tube, string is equipped with third power tube and the 4th on second bridge arm
Power tube, string is equipped with the 5th power tube and the 6th power tube on the third bridge arm, and string is equipped with the 7th work(on the four bridge legs
The tie point of rate pipe and the 8th power tube, first power tube and the second power tube connects first phase winding, and described the
The tie point of three power tubes and the 4th power tube connects second phase winding, the company of the 5th power tube and the 6th power tube
Contact connects the third phase winding, the tie point of first power tube and the second power tube and the 7th power tube and the
The tie point of eight power tubes by the first control switch connection, the tie point of the third power tube and the 4th power tube with it is described
The tie point of 7th power tube and the 8th power tube passes through the second control switch connection, the 5th power tube and the 6th power tube
Tie point and the 7th power tube and the tie point of the 8th power tube pass through third control switch connection；
Second inverter circuit includes the 5th bridge arm, the 6th bridge arm, the 7th bridge arm and the 8th bridge arm being arranged in parallel, institute
It states on the 5th bridge arm string and is equipped with the 9th power tube and the tenth power tube, string is equipped with the 11st power tube and the on the 6th bridge arm
12 power tubes, string is equipped with the 13rd power tube and the 14th power tube on the 7th bridge arm, goes here and there and sets on the 8th bridge arm
There are the 15th power tube and the 16th power tube, tie point connection the 4th phase of the 9th power tube and the tenth power tube
The tie point of winding, the 11st power tube and the 12nd power tube connects the 5th phase winding, the 13rd power
Pipe connects the 6th phase winding, the tie point of the 9th power tube and the tenth power tube with the tie point of the 14th power tube
Pass through the 4th control switch connection, the 11st power tube with the tie point of the 15th power tube and the 16th power tube
It is opened by the 5th control with the tie point of the 15th power tube and the 16th power tube with the tie point of the 12nd power tube
Connection connects, tie point and the 15th power tube and the 16th power tube of the 13rd power tube and the 14th power tube
Tie point pass through the 6th control switch connection.
Further, first bridge arm, the second bridge arm, third bridge arm, the 5th bridge arm, the 6th bridge arm and the 7th bridge arm
Both ends are both provided with fuse.
Further, the first control switch, the second control switch, third control switch, the 4th control switch, the 5th
Control switch and the 6th control switch are bidirectional thyristor.
Further, first power tube, the second power tube, third power tube, the 4th power tube, the 5th power tube,
6th power tube, the 7th power tube, the 8th power tube, the 9th power tube, the tenth power tube, the 11st power tube, the 12nd work(
Rate pipe, the 13rd power tube, the 14th power tube, the 15th power tube and the 16th power tube are IGBT, and reversed
It is parallel with corresponding diode.
Description of the drawings
Fig. 1 is double three-phase machine failure tolerant circuit diagram；
Fig. 2 is the circuit diagram under double three-phase machine failure tolerant circuit normal operating conditions；
Equivalent circuit diagram when Fig. 3 is some bridge arm generation open fault in first inverter circuit；
Fig. 4 is equivalent circuit diagram when open fault occurs in two inverter circuits there are one bridge arm；
Fig. 5 is one in two bridge arms generation open fault and second inverter circuit in first inverter circuit
Equivalent circuit diagram when open fault occurs for bridge arm.
Specific implementation mode
Double three-phase machine system embodiment
The present embodiment provides a kind of double three-phase machine systems, including double three-phase machine and failure tolerant circuit, wherein double three
Phase motor (i.e. double-winding motor, such as double winding permanent magnet synchronous motor) has double winding, is first set winding and the respectively
Two sets of windings, first set winding include the first phase winding, the second phase winding and third phase winding, the winding in difference corresponding diagram 1
A, winding b and winding c, second set of winding includes the 4th phase winding, the 5th phase winding and the 6th phase winding, respectively in corresponding diagram 1
Winding A, winding B and winding C.
Failure tolerant circuit includes two inverter circuits, is the first inverter circuit (inverter 1) and the second inversion electricity respectively
Road (inverter 2), failure tolerant circuit further include two power switches, respectively the K1 and K2 in corresponding diagram 1.The two inversions electricity
The DC side on road is for connecting Vehicular accumulator cell (or referred to as power battery), wherein Vehicular accumulator cell passes through switch K2 connections
Inverter 1, by switch K1 connections inverter 2, certainly, the two power switches can also be not provided with.
Inverter 1 includes the first bridge arm, the second bridge arm, third bridge arm and the four bridge legs being arranged in parallel, and inverter 2 includes
The 5th bridge arm, the 6th bridge arm, the 7th bridge arm and the 8th bridge arm being arranged in parallel, this eight bridge arms distinguish the bridge arm in corresponding diagrams 1
1, bridge arm 2, bridge arm 3, bridge arm 4, bridge arm 5, bridge arm 6, bridge arm 7 and bridge arm 8.The anode of this eight bridge arm is and Vehicular accumulator cell
Anode is connected, and the cathode of this eight bridge arms is connected with the cathode of Vehicular accumulator cell.First power tube, the second power tube, third
Power tube, the 4th power tube, the 5th power tube, the 6th power tube, the 7th power tube, the 8th power tube, the 9th power tube, the tenth
Power tube, the 11st power tube, the 12nd power tube, the 13rd power tube, the 14th power tube, the 15th power tube and the tenth
Six power tubes distinguish corresponding diagram 1 in power tube Q1, power tube Q2, power tube Q3, power tube Q4, power tube Q5, power tube Q6,
Power tube Q7, power tube Q8, power tube Q9, power tube Q10, power tube Q11, power tube Q12, power tube Q13, power tube Q14,
Power tube Q15 and power tube Q16.In the present embodiment, for power tube Q1~Q16 by taking IGBT as an example, equal reverse parallel connection has two pole of body
Pipe.
As shown in Figure 1, string is equipped with power tube Q1 and power tube Q2 on bridge arm 1, string is equipped with power tube Q3 and power on bridge arm 2
Pipe Q4, string is equipped with power tube Q5 and power tube Q6 on bridge arm 3, and string is equipped with power tube Q7 and power tube Q8 on bridge arm 4, on bridge arm 5
String is equipped with power tube Q9 and power tube Q10, and string is equipped with power tube Q11 and power tube Q12 on bridge arm 6, and string is equipped with power on bridge arm 7
Pipe Q13 and power tube Q14, string is equipped with power tube Q15 and power tube Q16 on bridge arm 8.
The tie point of power tube Q1 and power tube Q2 and the tie point of power tube Q7 and power tube Q8 are opened by the first control
Connection connects, in the present embodiment, the bidirectional thyristor TR3 in the first control switch corresponding diagram 1, and the company of power tube Q3 and power tube Q4
The tie point of contact and power tube Q7 and power tube Q8 is connected by the second control switch, that is, passes through the bidirectional thyristor in Fig. 1
The tie point of TR2 connections, power tube Q5 and power tube Q6 are opened with the tie point of power tube Q7 and power tube Q8 by third control
Connection connects, that is, passes through the bidirectional thyristor TR1 connections in Fig. 1；The tie point of power tube Q9 and power tube Q10 and power tube Q15
Tie point with power tube Q16 passes through the bidirectional thyristor TR6 connections in Fig. 1, power tube by the 4th control switch connection
The tie point of Q11 and power tube Q12 and the tie point of power tube Q15 and power tube Q16 are connected by the 5th control switch, i.e., logical
Cross the bidirectional thyristor TR5 connections in Fig. 1, the tie point and power tube Q15 and power tube Q16 of power tube Q13 and power tube Q14
Tie point by the 6th control switch connection, that is, pass through the bidirectional thyristor TR4 connections in Fig. 1.Certainly, each control among the above
System switch can also be other kinds of control switch, such as IGBT.
Therefore, bridge arm 4 is the redundancy bridge arm of inverter 1, and bridge arm 8 is the redundancy bridge arm of inverter 2.
Power tube Q1 connects winding a with the tie point of power tube Q2, power tube Q3 connected with the tie point of power tube Q4 around
Group b, power tube Q5 connect winding c with the tie point of power tube Q6；Power tube Q9 connects winding A with the tie point of power tube Q10,
Power tube Q11 connects winding B with the tie point of power tube Q12, and power tube Q13 connects winding C with the tie point of power tube Q14,
I.e. each tie point is separately connected the leading-out terminal of corresponding winding.
Certainly, in order to realize control, fault tolerable circuit further includes control section, and certainly, which can also be system
Originally the control device that there is, is not belonging to a part for the fault tolerable circuit.In the present embodiment, control section controls for system
Device, wherein the grid of power tube Q1~Q16 is connected with system controller, inputs triggering by system controller or disconnects driving
The control pole of signal, bidirectional thyristor TR1, TR2, TR3, TR4, TR5, TR6 is connected with system controller, by system controller
Input or break trigger signal.
Further, the both ends of bridge arm 1, bridge arm 2, bridge arm 3, bridge arm 5, bridge arm 6 and bridge arm 7 are both provided with fuse, relate to
And to fuse have fuse F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11 and F12, in the present embodiment, this 12
A fuse is fastp-acting fuse.So, as shown in Figure 1, bridge arm 1 by fastp-acting fuse F1, power tube Q1, power tube Q2 and
Fastp-acting fuse F2 compositions, bridge arm 2 are made of fastp-acting fuse F3, power tube Q3, power tube Q4 and fastp-acting fuse F4, bridge arm
3 are made of fastp-acting fuse F5, power tube Q5, power tube Q6 and fastp-acting fuse F6, and bridge arm 5 is by fastp-acting fuse F7, power
Pipe Q9, power tube Q10 and fastp-acting fuse F8 composition, bridge arm 6 is by fastp-acting fuse F9, power tube Q11, power tube Q12 and fast
Fast fuse F10 compositions, bridge arm 7 are made of fastp-acting fuse F11, power tube Q13, power tube Q14 and fastp-acting fuse F12.
Failure tolerant circuit is in failure free operation, as shown in Fig. 2, only bridge arm 1, bridge arm 2, bridge arm 3, bridge arm 5, bridge
Arm 6 and bridge arm 7 are powered to double three-phase windings a, b, c and the A of motor, B, C, bridge arm 4, bridge arm 8 and six bidirectional thyristor TR1,
TR2, TR3, TR4, TR5, TR6 do not work, and Vehicular accumulator cell controls double three-phase machine by inverter 1 and inverter 2 and realizes drive
Dynamic function.
When a certain bridge arm in bridge arm 1, bridge arm 2 and the bridge arm 3 in inverter 1 occurs in open fault or inverter 2
Bridge arm 5, a certain bridge arm in bridge arm 6 and bridge arm 7 is when there is open fault, system controller disconnects two in the failure bridge arm
The drive signal of a power tube triggers corresponding with failure bridge arm bidirectional thyristor and is connected, while by the driving of failure bridge arm
Signal controls corresponding redundancy bridge arm, i.e. two in bridge arm 4 or 8 power tube, by the bidirectional thyristor that is triggered and bridge arm 4 or
8 redundant circuits constituted put into operation, instead of the failure bridge arm being disconnected, realize the redundancy running under fault condition.With bridge arm 1
In power tube Q1 and power tube Q2 there is open fault for, as shown in figure 3, system controller disconnects power tube Q1 and power
The drive signal of pipe Q2, control bidirectional thyristor TR3 conductings, by the original drive signal for power tube Q1 and power tube Q2 point
Power tube Q7 and power tube Q8 Yong Yu not be controlled, bidirectional thyristor TR3 and bridge arm 4 is made to constitute the redundant circuit input fortune of bridge arm 1
Row realizes faults-tolerant control.Vehicular accumulator cell controls double three-phase machine still through inverter 1 and inverter 2 and realizes driving function,
Motor remains as the symmetrical operation mode of the double switch of three-phase 12 power supplies, and property indices are as before failure generation.
As bridge arm 5,6 and of bridge arm in a certain bridge arm and inverter 2 in bridge arm 1, bridge arm 2 and the bridge arm 3 in inverter 1
When a certain bridge arm in bridge arm 7 open fault occurs simultaneously, system controller disconnects the drive of two power tubes in failure bridge arm
Dynamic signal triggers bidirectional thyristor conducting corresponding with failure bridge arm, while the drive signal of failure bridge arm is corresponded to control bridge
Two power tubes in arm 4 and bridge arm 8, the redundant circuit being made of bidirectional thyristor and bridge arm 4 and the bridge arm 8 being triggered are put into
Operation realizes the redundancy running under fault condition instead of the failure bridge arm being disconnected.With the power tube in 1 bridge arm 1 of inverter
For power tube Q9 and power tube Q10 in 2 bridge arm 5 of Q1 and power tube Q2 and inverter open fault occur simultaneously, such as Fig. 4
Shown, system controller disconnects the drive signal of power tube Q1, power tube Q2, power tube Q9 and power tube Q10, controls two-way crystalline substance
Brake tube TR3 and TR6 conducting, the original driving for power tube Q1 and power tube Q2 and power tube Q9 and power tube Q10 is believed
It number is respectively used to control power tube Q7 and power tube Q8 and power tube Q15 and power tube Q16, makes bidirectional thyristor TR3, TR6
And bridge arm 4 and bridge arm 8 constitute bridge arm 1 and the redundant circuit of bridge arm 5 puts into operation, realizes faults-tolerant control.Vehicular accumulator cell is still
Double three-phase machine, which is controlled, by inverter 1 and inverter 2 realizes that driving function, motor remain as the double switch of three-phase 12 power supplies
As before symmetrical operation mode, property indices and failure generation.
When there is at least two bridge arms open fault occur in some inverter, and in another inverter only there are one
In certain two bridge arm and inverter 2 in bridge arm 1, bridge arm 2 and bridge arm 3 when open fault occurs in bridge arm, such as in inverter 1
Bridge arm 5, a certain bridge arm in bridge arm 6 and bridge arm 7 there is open fault simultaneously, due to 1 bridge arm 1 of inverter, bridge arm 2 and bridge
Bridge arm breaks down there are two in arm 3, then, even if the bridge arm 4 in input inverter 1 also cannot achieve Redundant Control, that
, inverter 1 is unable to operate normally, and system controller disconnects the power switch K2 of inverter 1, disconnects the correlation in inverter 1
Drive signal exits inverter 1.Moreover, system controller disconnects the drive of two power tubes in the failure bridge arm in inverter 2
Dynamic signal triggers bidirectional thyristor conducting corresponding with the failure bridge arm, while the drive signal of failure bridge arm being corresponded to and is controlled
Two power tubes in bridge arm 8, the redundant circuit being made of with bridge arm 8 bidirectional thyristor being triggered puts into operation, instead of quilt
The failure bridge arm of disconnection realizes the redundancy running under fault condition.Further, with the power tube Q1 in 1 bridge arm 1 of inverter
With the power tube Q9 and power tube in 2 bridge arm 5 of power tube Q3 and power tube Q4 and inverter in power tube Q2, bridge arm 2
For Q10 open fault occurs simultaneously, as shown in figure 5, system controller disconnects switch K2, power tube Q1, work(can be only disconnected
The drive signal of rate pipe Q2, power tube Q3 and power tube Q4 can also disconnect the driving letter of power tube all in inverter 1
Number, and the drive signal of power tube Q9 and power tube Q10 are disconnected, the TR6 conductings of control bidirectional thyristor will be used for power tube originally
The drive signal of Q9 and power tube Q10 are respectively used to power tube Q15 and power tube Q16, make 8 structure of bidirectional thyristor TR6 and bridge arm
It puts into operation at the redundant circuit of bridge arm 5, realizes faults-tolerant control.Vehicular accumulator cell controls double three-phase electricities still through inverter circuit
Machine realizes that driving function, motor are the method for operation operating of the single switch of three-phase six power supply.
In addition, since the both ends of bridge arm 1, bridge arm 2, bridge arm 3, bridge arm 5, bridge arm 6 and bridge arm 7 are both provided with fuse, that
, other than above-mentioned open fault, when a certain bridge arm in bridge arm 1, bridge arm 2, bridge arm 3, bridge arm 5, bridge arm 6 and bridge arm 7
When there is short trouble in one of power tube, the complementary power pipe on corresponding bridge arm, two fuses and vehicle on the bridge arm
It carries accumulator to be just formed into a loop, because overcurrent is blown, which is disconnected from the circuit for two fuses, and short trouble is from turn
Open fault is turned to, above-mentioned open-circuit fault of power tubes fault-tolerant strategy is recycled to carry out faults-tolerant control.So bridge arm 1, bridge arm 2, bridge
Arm 3, bridge arm 5, bridge arm 6 and bridge arm 7 increase fuse, are used for when short trouble occurs for power tube, quickly by corresponding bridge
Arm is disconnected from the circuit, and protects circuit other elements not to be damaged, and realize faults-tolerant control.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in introduction according to the present invention
The model of shape, formula, parameter do not need to spend creative work.It is right without departing from the principles and spirit of the present invention
The change, modification, replacement and modification that embodiment carries out are still fallen in protection scope of the present invention.
Double three-phase machine failure tolerant circuit embodiments
The present embodiment provides a kind of double three-phase machine failure tolerant circuit, the application of the failure tolerant circuit is double three
Phase motor, therefore, the failure tolerant circuit do not include the double winding in double three-phase machine.Since the failure tolerant circuit is upper
It states to have given in system embodiment and describe in detail, the present embodiment just no longer illustrates.
Claims (8)
1. the application of a kind of double three-phase machine failure tolerant circuit, the fault tolerable circuit is double three-phase machine, described double three
There is phase motor first set winding and second set winding, the first set winding to include the first phase winding, the second phase winding and the
Three-phase windings, second set of winding include the 4th phase winding, the 5th phase winding and the 6th phase winding, which is characterized in that described
Failure tolerant circuit includes the first inverter circuit and the second inverter circuit,
First inverter circuit includes the first bridge arm being arranged in parallel, the second bridge arm, third bridge arm and four bridge legs, and described
String is equipped with the first power tube and the second power tube on one bridge arm, and string is equipped with third power tube and the 4th power on second bridge arm
It manages, string is equipped with the 5th power tube and the 6th power tube on the third bridge arm, and string is equipped with the 7th power tube on the four bridge legs
With the 8th power tube, the tie point of first power tube and the second power tube is for connecting first phase winding, and described the
The tie point of three power tubes and the 4th power tube is for connecting second phase winding, the 5th power tube and the 6th power tube
Tie point for connecting the third phase winding, tie point and the 7th work(of first power tube and the second power tube
The tie point of rate pipe and the 8th power tube passes through the first control switch connection, the connection of the third power tube and the 4th power tube
Point is connected with the tie point of the 7th power tube and the 8th power tube by the second control switch, the 5th power tube and the
The tie point of six power tubes controls switch connection with the tie point of the 7th power tube and the 8th power tube by third；
Second inverter circuit includes the 5th bridge arm, the 6th bridge arm, the 7th bridge arm and the 8th bridge arm being arranged in parallel, and described
String is equipped with the 9th power tube and the tenth power tube on five bridge arms, and string is equipped with the 11st power tube and the 12nd on the 6th bridge arm
Power tube, string is equipped with the 13rd power tube and the 14th power tube on the 7th bridge arm, and string is equipped with the on the 8th bridge arm
The tie point of 15 power tubes and the 16th power tube, the 9th power tube and the tenth power tube is for connecting the 4th phase
The tie point of winding, the 11st power tube and the 12nd power tube is for connecting the 5th phase winding, and the described 13rd
The tie point of power tube and the 14th power tube is for connecting the 6th phase winding, the 9th power tube and the tenth power tube
Tie point and the 15th power tube and the 16th power tube tie point by the 4th control switch connection, the described tenth
The tie point of the tie point of one power tube and the 12nd power tube and the 15th power tube and the 16th power tube passes through the
Five control switch connections, the tie point and the 15th power tube and the tenth of the 13rd power tube and the 14th power tube
The tie point of six power tubes passes through the 6th control switch connection.
2. double three-phase machine failure tolerant circuit according to claim 1, which is characterized in that first bridge arm, second
Bridge arm, third bridge arm, the 5th bridge arm, the 6th bridge arm and the 7th bridge arm both ends be both provided with fuse.
3. double three-phase machine failure tolerant circuit according to claim 1 or 2, which is characterized in that first control is opened
It closes, the second control switch, third control switch, the 4th control switch, the 5th control switch and the 6th control switch are two-way
Thyristor.
4. double three-phase machine failure tolerant circuit according to claim 1 or 2, which is characterized in that first power tube,
Second power tube, third power tube, the 4th power tube, the 5th power tube, the 6th power tube, the 7th power tube, the 8th power tube,
9th power tube, the tenth power tube, the 11st power tube, the 12nd power tube, the 13rd power tube, the 14th power tube,
15 power tubes and the 16th power tube are IGBT, and reverse parallel connection has corresponding diode.
5. a kind of double three-phase machine system, including double three-phase machine and failure tolerant circuit, the double three-phase machine has first
Covering winding and second set winding, the first set winding includes the first phase winding, the second phase winding and third phase winding, and described the
Two sets of windings include the 4th phase winding, the 5th phase winding and the 6th phase winding, which is characterized in that the failure tolerant circuit includes
First inverter circuit and the second inverter circuit,
First inverter circuit includes the first bridge arm being arranged in parallel, the second bridge arm, third bridge arm and four bridge legs, and described
String is equipped with the first power tube and the second power tube on one bridge arm, and string is equipped with third power tube and the 4th power on second bridge arm
It manages, string is equipped with the 5th power tube and the 6th power tube on the third bridge arm, and string is equipped with the 7th power tube on the four bridge legs
With the 8th power tube, the tie point of first power tube and the second power tube connects first phase winding, the third work(
The tie point of rate pipe and the 4th power tube connects second phase winding, the tie point of the 5th power tube and the 6th power tube
Connect the third phase winding, the tie point and the 7th power tube and the 8th work(of first power tube and the second power tube
The tie point of rate pipe passes through the first control switch connection, the tie point and the described 7th of the third power tube and the 4th power tube
The tie point of power tube and the 8th power tube passes through the second control switch connection, the company of the 5th power tube and the 6th power tube
Contact controls switch connection with the tie point of the 7th power tube and the 8th power tube by third；
Second inverter circuit includes the 5th bridge arm, the 6th bridge arm, the 7th bridge arm and the 8th bridge arm being arranged in parallel, and described
String is equipped with the 9th power tube and the tenth power tube on five bridge arms, and string is equipped with the 11st power tube and the 12nd on the 6th bridge arm
Power tube, string is equipped with the 13rd power tube and the 14th power tube on the 7th bridge arm, and string is equipped with the on the 8th bridge arm
The tie point of 15 power tubes and the 16th power tube, the 9th power tube and the tenth power tube connect the 4th phase around
The tie point of group, the 11st power tube and the 12nd power tube connects the 5th phase winding, the 13rd power tube
Connect the 6th phase winding with the tie point of the 14th power tube, the tie point of the 9th power tube and the tenth power tube with
The tie point of 15th power tube and the 16th power tube by the 4th control switch connection, the 11st power tube and
The tie point of 12nd power tube is switched with the tie point of the 15th power tube and the 16th power tube by the 5th control
Connection, the tie point of the 13rd power tube and the 14th power tube and the 15th power tube and the 16th power tube
Tie point passes through the 6th control switch connection.
6. double three-phase machine system according to claim 5, which is characterized in that first bridge arm, the second bridge arm, third
Bridge arm, the 5th bridge arm, the 6th bridge arm and the 7th bridge arm both ends be both provided with fuse.
7. double three-phase machine system according to claim 5 or 6, which is characterized in that the first control switch, the second control
System switch, third control switch, the 4th control switch, the 5th control switch and the 6th control switch are bidirectional thyristor.
8. double three-phase machine system according to claim 5 or 6, which is characterized in that first power tube, the second power
Pipe, third power tube, the 4th power tube, the 5th power tube, the 6th power tube, the 7th power tube, the 8th power tube, the 9th power
Pipe, the tenth power tube, the 11st power tube, the 12nd power tube, the 13rd power tube, the 14th power tube, the 15th power
Pipe and the 16th power tube are IGBT, and reverse parallel connection has corresponding diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415277.9A CN108494241A (en) | 2018-05-03 | 2018-05-03 | A kind of double three-phase machine system and failure tolerant circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415277.9A CN108494241A (en) | 2018-05-03 | 2018-05-03 | A kind of double three-phase machine system and failure tolerant circuit |
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| CN108494241A true CN108494241A (en) | 2018-09-04 |
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Application publication date: 20180904 |