CN109713738A - A kind of fault tolerable circuit of integrated driving and charge function - Google Patents
A kind of fault tolerable circuit of integrated driving and charge function Download PDFInfo
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- CN109713738A CN109713738A CN201711008737.8A CN201711008737A CN109713738A CN 109713738 A CN109713738 A CN 109713738A CN 201711008737 A CN201711008737 A CN 201711008737A CN 109713738 A CN109713738 A CN 109713738A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The present invention relates to the fault tolerable circuit of a kind of integrated driving and charge function, including inverter circuit and charging circuit, four bridge legs constitute the redundant circuit of first three bridge arm with bidirectional thyristor.Firstly, the circuit structure is simple, still, compared to traditional charging circuit, it is more reasonable to design, and power device quantity and increased costs are limited, and cost performance is high, and correspondingly control is safe and reliable.When there is open-circuit fault in a certain bridge arm in the first bridge arm, the second bridge arm and third bridge arm, power tube in the bridge arm of failure is out of service, and the corresponding control switch of tie point between two power tubes in the failure bridge arm and four bridge legs operation, the redundant circuit for constituting the failure bridge arm puts into operation, realizes faults-tolerant control.The circuit has the function of charge function and driving motor simultaneously, realizes the Integrated design of driving and charge function.Therefore, in normal operation still in case of a fault regardless of circuit, it can be realized charge function and driving function.
Description
Technical field
The present invention relates to the fault tolerable circuits of a kind of integrated driving and charge function.
Background technique
Electric car is as the current important channel for solving field of traffic environmental pollution and energy crisis, more by the whole world
The concern in field, in current automotive industry technology increasingly mature today, the crucial restriction problem that electric car popularizes is
Battery and charging technique, wherein charging technique becomes the key of electric car continuation of the journey and cost.The electric power storage of electric car at present
There are two types of pond charging modes, a kind of vehicle-mounted trickle charge device, by the charging unit placement electric car of battery, can use general
Logical single phase alternating current power supply is placed in public building and charging socket or charging pile plug-in in the parking lot of residential area,
Have the advantages that charging is convenient, but this problem is that charge power is smaller, Vehicular accumulator cell fills charging unit at a slow speed
Full electricity takes a long time, and influences the utilization rate of electric car, and the Vehicular charger is intrinsic during electric automobile during traveling
Load, influence the promotion of vehicle runnability；Another is the quick charge stake for solving trickle charge device charging rate, usually
It is arranged in special charging station, industrial three-phase alternating current is converted to by high power DC electricity by high power converter, directly to vehicle
Battery charging is carried, the charging of battery can be rapidly completed in a short time, the charging effect of electric car can be effectively improved
Rate and utilization rate, but the quick charge device power is larger, electric elements inside is more, causes volume and weight larger, pacifies
The limited space of electric car and weight resource are seriously occupied loaded on electric car, are needed in the application process for promoting electric car
Assist establishing matched quick charge station, equally cost, market and in terms of also receive very big limit
System.
Summary of the invention
The object of the present invention is to provide the fault tolerable circuits of a kind of integrated driving and charge function.
To achieve the above object, the solution of the present invention includes the fault tolerable circuit of a kind of integrated driving and charge function, including
Inverter circuit and charging circuit, the inverter circuit include the first bridge arm, the second bridge arm, third bridge arm and the 4th being arranged in parallel
Bridge arm, string is equipped with the first power tube and the second power tube on first bridge arm, and string is equipped with the 4th power on second bridge arm
Pipe and the 5th power tube, string is equipped with the 7th power tube and the 8th power tube on the third bridge arm, goes here and there and sets on the four bridge legs
There are the tenth power tube and the 11st power tube, the first phase of the tie point connection motor of first power tube and the second power tube
Winding, the 4th power tube and the 5th power tube tie point connection motor the second phase winding, the 7th power tube and
The third phase winding of the tie point connection motor of 8th power tube, the tie point and institute of first power tube and the second power tube
The tie point for stating the tenth power tube and the 11st power tube is connected by the first control switch, the 4th power tube and the 5th function
The tie point of rate pipe is connect with the tie point of the tenth power tube and the 11st power tube by the second control switch, and described
The tie point of the tie point of seven power tubes and the 8th power tube and the tenth power tube and the 11st power tube passes through third control
System switch connection, the charging circuit include tie point, the 4th power tube for passing through the first power tube and the second power tube
It charges with the tie point of the tie point of the 5th power tube and the 7th power tube and the 8th power tube to Vehicular accumulator cell
First group of charging paths, string is equipped with charge switch in each charging paths in first group of charging paths, in first group of charging paths
Each charging paths the other end for connecting AC power source.
Firstly, circuit structure provided by the invention is simple, charging circuit and superfluous is increased on the basis of inverter circuit
Remaining bridge arm, still, compared to traditional charging circuit, but very rationally, power device quantity and increased costs are limited, property for design
Valence is than high, and correspondingly control is safe and reliable.Moreover, when circuit works normally, the first bridge arm, the second bridge arm and third bridge arm fortune
Row, AC power source carry out quick charge to Vehicular accumulator cell by these three bridge arms, and four bridge legs and each control switch are not run；
Function when open-circuit fault occurs in a certain bridge arm in the first bridge arm, the second bridge arm and third bridge arm, in the bridge arm of failure
Rate pipe is out of service, and the corresponding control switch of the tie point between two power tubes in the failure bridge arm and the 4th bridge
Arm operation, the redundant circuit for constituting the failure bridge arm put into operation, realize faults-tolerant control, even if a certain bridge arm breaks down, electricity
Road can still operate normally.Also, the circuit is not only able to realize charge function, and Vehicular accumulator cell passes through the circuit energy
Enough driving motor operations, when operating normally, the first bridge arm, the second bridge arm and the operation of third bridge arm are powered to machine winding, the
Four bridge legs and each control switch do not work, and realize motor driven；A certain bridge in the first bridge arm, the second bridge arm and third bridge arm
When open-circuit fault occurs in arm, the power tube in the bridge arm of failure is out of service, and with two power in the failure bridge arm
The corresponding control switch of tie point and four bridge legs operation between pipe constitute the redundant circuit investment fortune of the failure bridge arm
Row realizes faults-tolerant control, even if a certain bridge arm breaks down, circuit can still be operated normally, and realizes the normal driving of motor.
The application of the fault tolerable circuit is double three-phase machine, and the double three-phase machine has first set winding and second
Winding is covered, the first set winding includes first phase winding, the second phase winding and third phase winding, second set of winding
Including the 4th phase winding, the 5th phase winding and the 6th phase winding, also string is equipped with third power tube on first bridge arm, and described the
One power tube, the second power tube and third power tube are sequentially connected, and also string is equipped with the 6th power tube on second bridge arm, described
4th power tube, the 5th power tube and the 6th power tube are sequentially connected, and also string is equipped with the 9th power tube, institute on the third bridge arm
It states the 7th power tube, the 8th power tube and the 9th power tube to be sequentially connected, also string is equipped with the 12nd power on the four bridge legs
Pipe, the tenth power tube, the 11st power tube and the 12nd power tube are sequentially connected, second power tube and third power
The tie point of pipe connects the 4th phase winding, tie point connection the 5th phase of the 5th power tube and the 6th power tube
The tie point of winding, the 8th power tube and the 9th power tube connects the 6th phase winding, second power tube and the
The tie point of three power tubes is connect with the tie point of the 11st power tube and the 12nd power tube by the 4th control switch,
The tie point of the tie point of 5th power tube and the 6th power tube and the 11st power tube and the 12nd power tube is logical
Cross the connection of the 5th control switch, the tie point and the 11st power tube and the tenth of the 8th power tube and the 9th power tube
The tie point of two power tubes is connected by the 6th control switch, and the charging circuit further includes for by the second power tube and the
The company of the tie point of three power tubes, the tie point of the 5th power tube and the 6th power tube and the 8th power tube and the 9th power tube
Second group of charging paths that contact charges to Vehicular accumulator cell are gone here and there in each charging paths in second group of charging paths and are equipped with
Charge switch, the other end of each charging paths in second group of charging paths is for connecting the AC power source.
First control switch, the second control switch, third control switch, the 4th control switch, the 5th control switch
It is bidirectional thyristor with the 6th control switch.
The tie point of first power tube and the second power tube connects one end of first phase winding, the 4th function
The tie point of rate pipe and the 5th power tube connects one end of second phase winding, the 7th power tube and the 8th power tube
Tie point connects one end of the third phase winding, and each charging paths in first group of charging paths are correspondingly connected with the first phase winding
The other end, the other end of the second phase winding and the other end of third phase winding.
The 7th control switch, second phase winding and third are provided between first phase winding and the second phase winding
The 8th control switch is provided between phase winding.
The tie point of first power tube and the second power tube connects one end of first phase winding, the 4th function
The tie point of rate pipe and the 5th power tube connects one end of second phase winding, the 7th power tube and the 8th power tube
Tie point connects one end of the third phase winding, and each charging paths in first group of charging paths are correspondingly connected with the first phase winding
The other end, the other end of the second phase winding and the other end of third phase winding, second power tube and third power tube
Tie point connects one end of the 4th phase winding, the tie point connection the described 5th of the 5th power tube and the 6th power tube
The tie point of one end of phase winding, the 8th power tube and the 9th power tube connects one end of the 6th phase winding, and second
Each charging paths in group charging paths are correspondingly connected with the other end and the 6th phase of the other end of the 4th phase winding, the 5th phase winding
The other end of winding.
The 7th control switch, second phase winding and third are provided between first phase winding and the second phase winding
It is provided with the 8th control switch between phase winding, the 9th control is provided between the 5th phase winding and the 6th phase winding and is opened
It closes, is provided with the tenth control switch between the 4th phase winding and the 5th phase winding.
The both ends of first bridge arm, the second bridge arm and third bridge arm are provided with fuse.
First power tube, the second power tube, third power tube, the 4th power tube, the 5th power tube, the 6th power
Pipe, the 7th power tube, the 8th power tube, the 9th power tube, the tenth power tube, the 11st power tube and the 12nd power tube are
IGBT, and reverse parallel connection has corresponding diode.
Detailed description of the invention
Fig. 1 is the circuit diagram of the first embodiment of fault tolerable circuit；
Fig. 2 is the circuit diagram under fault tolerable circuit normal operating conditions；
Fig. 3 is the equivalent circuit diagram after the first bridge arm of fault tolerable circuit breaks down；
Fig. 4 is the circuit diagram of second of embodiment of fault tolerable circuit.
Specific embodiment
Fault tolerable circuit embodiment 1
Fault tolerable circuit provided in this embodiment is integrated with driving and charge function.Fault tolerable circuit includes inverter circuit, charging
Circuit and control section, certainly, control section can also be that system is originally existing and control equipment, be not belonging to the fault tolerable circuit
A part.Moreover, the application of fault tolerable circuit provided in this embodiment is double three-phase machine, which has two sets
Winding, is first set winding and second set of winding respectively, and first set winding includes the first phase winding, the second phase winding and third phase
Winding, respectively corresponds winding a, winding b in Fig. 1 and winding c, second set of winding include the 4th phase winding, the 5th phase winding and
6th phase winding respectively corresponds winding A, winding B and winding C in Fig. 1.
Inverter circuit includes the first bridge arm being arranged in parallel, the second bridge arm, third bridge arm and four bridge legs, respectively corresponds figure
Bridge arm 1, bridge arm 2, bridge arm 3 and bridge arm 4 in 1, DC side connection Vehicular accumulator cell (or the referred to as power electric of the inverter circuit
Pond), wherein the anode of this four bridge arms is connected with the anode of Vehicular accumulator cell, the cathode of this four bridge arms is equal with vehicle-mounted storage
The cathode of battery is connected.
The first power tube, the second power tube, third power tube, the 4th power tube, the 5th power tube in inverter circuit,
Six power tubes, the 7th power tube, the 8th power tube, the 9th power tube, the tenth power tube, the 11st power tube and the 12nd power
Pipe respectively corresponds power tube Q1, power tube Q2, power tube Q3, power tube Q4, power tube Q5, power tube Q6, power tube in Fig. 1
Q7, power tube Q8, power tube Q9, power tube Q10, power tube Q11 and power tube Q12.In the present embodiment, power tube Q1~Q12
It is IGBT, equal reverse parallel connection has body diode.
As shown in Figure 1, successively string sets power tube Q1, power tube Q2 and power tube Q3 on the first bridge arm, on the second bridge arm according to
Secondary string sets power tube Q4, power tube Q5 and power tube Q6, successively goes here and there on third bridge arm and sets power tube Q7, power tube Q8 and power tube
Q9, successively string sets power tube Q10, power tube Q11 and power tube Q12 on four bridge legs.The connection of power tube Q1 and power tube Q2
Point connect with the tie point of power tube Q10 and power tube Q11 by the first control switch, the first control switch and it is following other
Each control switch be electronic control type switch, in the present embodiment, these control switches are by taking bidirectional thyristor as an example, wherein the
The tie point of bidirectional thyristor TR3 in one control switch corresponding diagram 1, power tube Q4 and power tube Q5 and power tube Q10 and function
The tie point of rate pipe Q11 is connected by the second control switch, i.e., by the bidirectional thyristor TR2 connection in Fig. 1, power tube Q7 with
The tie point of power tube Q8 is connect with the tie point of power tube Q10 and power tube Q11 by third control switch, that is, passes through Fig. 1
In bidirectional thyristor TR1 connection.The connection of the tie point of power tube Q2 and power tube Q3 and power tube Q11 and power tube Q12
Point is connected by the 4th control switch, that is, passes through the bidirectional thyristor TR4 connection in Fig. 1, the company of power tube Q5 and power tube Q6
Contact is connect with the tie point of power tube Q11 and power tube Q12 by the 5th control switch, that is, passes through the two-way brilliant lock in Fig. 1
The tie point of pipe TR5 connection, power tube Q8 and power tube Q9 and the tie point of power tube Q11 and power tube Q12 pass through the 6th control
System switch connection, that is, pass through the bidirectional thyristor TR6 connection in Fig. 1.Four bridge legs and bidirectional thyristor constitute first three bridge arm
Redundant circuit.
Power tube Q1 connects winding a with the tie point of power tube Q2, power tube Q4 connected with the tie point of power tube Q5 around
Group b, power tube Q7 connect winding c with the tie point of power tube Q8.Power tube Q2 connects winding A with the tie point of power tube Q3,
Power tube Q5 connects winding B with the tie point of power tube Q6, and power tube Q8 connects winding C with the tie point of power tube Q9.
Charging circuit is used to through inverter circuit be Vehicular accumulator cell charging, that is, passes through the adjacent power pipe on each bridge arm
Tie point charges to Vehicular accumulator cell, and the present embodiment provides a kind of concrete implementation mode, due to being double three-phase machine, that
, charging circuit just includes two groups of charging paths, and first group of charging paths is used for the connection by power tube Q1 and power tube Q2
The tie point of point, the tie point of power tube Q4 and power tube Q5 and power tube Q7 and power tube Q8 fill Vehicular accumulator cell
Electricity, then, each charging paths in first group of charging paths are directly or indirectly correspondingly connected with above three tie point, this reality
It applies in example, power tube Q1 connects one end of winding a, the tie point company of power tube Q4 and power tube Q5 with the tie point of power tube Q2
One end of winding b is connect, power tube Q7 connects one end of winding c with the tie point of power tube Q8, each in first group of charging paths
Charging paths are correspondingly connected with the other end of the other end of winding a, the other end of winding b and winding c, also, in each charging paths
String is equipped with charge switch (K1, K2 and K3), and the other end of each charging paths is for connecting AC power source.Similarly, it fills for second group
Electric branch is used to pass through the tie point and power tube of the tie point of power tube Q2 and power tube Q3, power tube Q5 and power tube Q6
The tie point of Q8 and power tube Q9 charge to Vehicular accumulator cell, then, each charging paths in second group of charging paths are straight
It connects or is correspondingly connected with indirectly with above three tie point, in the present embodiment, power tube Q2 is connected with the tie point of power tube Q3
One end of winding A, power tube Q5 connect one end of winding B, the company of power tube Q8 and power tube Q9 with the tie point of power tube Q6
Contact connects one end of winding C, and each charging paths in second group of charging paths are correspondingly connected with the other end of winding A, winding B
The other end of the other end and winding C, also, string is equipped with charge switch (K4, K5 and K6) in each charging paths, each charging paths
The other end for connecting AC power source.
Also, four control switches are further related in Fig. 1, are respectively: the 7th control switch, the 8th control switch, the 9th control
System switch and the tenth control switch, this four control switches also by taking bidirectional thyristor as an example, respectively correspond the two-way brilliant lock in Fig. 1
Pipe TR7, TR8, TR9 and TR10.Wherein, bidirectional thyristor TR7 is arranged between winding a and winding b, for realizing winding a and
The connection or disconnection of winding b；Bidirectional thyristor TR8 is arranged between winding b and winding c, for realizing winding b and winding c
Connection or disconnection；Bidirectional thyristor TR9 is arranged between winding C and winding B, for realizing being connected to for winding C and winding B
Or it disconnects；Bidirectional thyristor TR10 is arranged between winding B and winding A, for realizing winding B and winding A be connected to or
It disconnects.
In the present embodiment, control section includes electric machine controller and control module 5, wherein the grid of power tube Q1~Q12
Be connected with electric machine controller, by electric machine controller input triggering or disconnect driving signal, bidirectional thyristor TR1, TR2, TR3,
The control electrode of TR4, TR5, TR6 are connected with electric machine controller, by electric machine controller input or break trigger signal.Charge switch
K1, K2, K3, K4, K5, K6 are connected with control module 5, by the closing or opening of 5 control switch of control module.Bidirectional thyristor
TR7, TR8, TR9 and TR10 are controlled by control module 5 or electric machine controller.
Fault tolerable circuit is in failure free operation, as shown in Fig. 2, only the first bridge arm, the second bridge arm and third bridge arm are given
Motor double three-phase windings a, b, c and A, B, C power supply, four bridge legs and six bidirectional thyristor TR1, TR2, TR3, TR4, TR5,
TR6 does not work, and Vehicular accumulator cell controls double three-phase machine by inverter circuit and realizes driving function；Also, three-phase alternating-current supply
By charge switch, double three-phase machine winding and inverter circuit to Vehicular accumulator cell quick charge.It is double when realizing driving function
It is closed to thyristor TR7, TR8, TR9 and TR10；When realizing charge function, bidirectional thyristor TR7, TR8, TR9 and TR10 are disconnected
It opens.
When open-circuit fault occurs in a certain bridge arm in the first bridge arm, the second bridge arm and third bridge arm, electric machine controller is disconnected
The driving signal of three power tubes in the failure bridge arm is opened, triggers bidirectional thyristor conducting corresponding with the failure bridge arm, together
When by three power tubes in the corresponding control four bridge legs of the driving signal of failure bridge arm, by the bidirectional thyristor that is triggered and the
The redundant circuit that four bridge legs are constituted puts into operation, instead of the failure bridge arm being disconnected, realizes the redundancy running under fault condition.With
For open-circuit fault occur in power tube Q1, power tube Q2 or power tube Q3 in first bridge arm, as shown in figure 3, electric machine controller
The driving signal of power tube Q1, power tube Q2 and power tube Q3 are disconnected, control bidirectional thyristor TR3 and TR4 conducting will be used originally
Control power tube Q10, power tube Q11 and power are respectively used in the driving signal of power tube Q1, power tube Q2 and power tube Q3
Pipe Q12, the redundant circuit for making bidirectional thyristor TR3, TR4 and four bridge legs constitute the first bridge arm put into operation, realize fault-tolerant control
System.Vehicular accumulator cell realizes driving function still through inverter circuit control double three-phase machine, and three-phase alternating-current supply can still pass through
Charge switch and double three-phase machine winding are sent out from inverter circuit to Vehicular accumulator cell quick charge, performance indexes and failure
Before death.
Further, the both ends of the first bridge arm, the second bridge arm and third bridge arm are provided with fuse, the fusing being related to
Device has fuse F1, F2, F3, F4, F5 and F6, and in the present embodiment, this six fuses are fastp-acting fuse.So, such as Fig. 1
Shown, the first bridge arm is sequentially connected in series by fuse F1, power tube Q1, power tube Q2, power tube Q3 and fuse F2；Second
Bridge arm is sequentially connected in series by fuse F3, power tube Q4, power tube Q5, power tube Q6 and fuse F4；Third bridge arm is by melting
Disconnected device F5, power tube Q7, power tube Q8, power tube Q9 and fuse F6 are sequentially connected in series.In this case, in addition to above-mentioned open circuit
Except failure, when short circuit event occurs in one of power tube of a certain bridge arm in the first bridge arm, the second bridge arm and third bridge arm
When barrier, complementary power pipe, two fuses on the bridge arm and Vehicular accumulator cell on corresponding bridge arm are just formed into a loop, and two molten
Because overcurrent is blown, which is disconnected from the circuit disconnected device, and short trouble is automatically converted to open-circuit fault, recycles above-mentioned function
Rate tube open circuit failure tolerant method carries out faults-tolerant control.So the first bridge arm, the second bridge arm and third bridge arm increase fusing
Device, for being quickly disconnected from the circuit corresponding bridge arm, protecting circuit other elements not when short trouble occurs for power tube
It is damaged, and realizes faults-tolerant control.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.Base of the 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.
Fault tolerable circuit embodiment 2
The present embodiment provides a kind of fault tolerable circuits for being integrated with driving and charge function, the difference from embodiment 1 is that: this
The application of the fault tolerable circuit of embodiment is conventional single three-phase motor, which only has a set of winding, which includes
First phase winding, the second phase winding and third phase winding respectively correspond winding a, winding b and winding c in Fig. 4.So, first
Two power tubes need to be only set in bridge arm, the second bridge arm, third bridge arm and four bridge legs, wherein successively go here and there on the first bridge arm
If power tube Q1 and power tube Q2, successively string sets power tube Q4 and power tube Q5 on the second bridge arm, successively goes here and there and sets on third bridge arm
Power tube Q7 and power tube Q8, successively string sets power tube Q10 and power tube Q11 on four bridge legs.
Similarly with above-described embodiment 1, the tie point of power tube Q1 and power tube Q2 are with power tube Q10's and power tube Q11
Tie point is connected by bidirectional thyristor TR3, the tie point and power tube Q10 and power tube Q11 of power tube Q4 and power tube Q5
Tie point connected by bidirectional thyristor TR2, the tie point of power tube Q7 and power tube Q8 and power tube Q10 and power tube
The tie point of Q11 is connected by bidirectional thyristor TR1.Four bridge legs and bidirectional thyristor constitute the redundant electric of first three bridge arm
Road.
Power tube Q1 connects winding a with the tie point of power tube Q2, power tube Q4 connected with the tie point of power tube Q5 around
Group b, power tube Q7 connect winding c with the tie point of power tube Q8.
So, charging circuit just only includes one group of charging paths, for by the tie point of power tube Q1 and power tube Q2,
The tie point and power tube Q7 of power tube Q4 and power tube Q5 and the tie point of power tube Q8 charge to Vehicular accumulator cell,
So, in the present embodiment, power tube Q1 connects one end of winding a, power tube Q4 and power tube Q5 with the tie point of power tube Q2
Tie point connection winding b one end, power tube Q7 connects one end of winding c, each charging paths with the tie point of power tube Q8
It is correspondingly connected with the other end of the other end of winding a, the other end of winding b and winding c, also, string is equipped in each charging paths
Charge switch (K1, K2 and K3), the other end of each charging paths is for connecting AC power source.
Similarly, two control switches are further related in Fig. 4, are respectively: the 7th control switch and the 8th control switch, the two
Control switch respectively corresponds the bidirectional thyristor TR7 and TR8 in Fig. 4 by taking bidirectional thyristor as an example.Wherein, bidirectional thyristor TR7
Be arranged between winding a and winding b, for realizing winding a and winding b be connected to or disconnection；Bidirectional thyristor TR8 setting exists
Between winding b and winding c, for realizing winding b and winding c be connected to or disconnection.
In the present embodiment, control section includes electric machine controller and control module 5, wherein the grid of all power tubes
It is connected with electric machine controller, triggering is inputted by electric machine controller or disconnects driving signal, bidirectional thyristor TR1, TR2, TR3's
Control electrode is connected with electric machine controller, by electric machine controller input or break trigger signal.Charge switch K1, K2, K3 with
Control module 5 is connected, by the closing or opening of 5 control switch of control module.Bidirectional thyristor TR7 and TR8 by control module 5 or
The control of person's electric machine controller.
The working principle of the fault tolerable circuit is identical as in embodiment 1, simply makes description below.
In failure free operation, only the first bridge arm, the second bridge arm and third bridge arm are powered to winding a, b, c, and the 4th
Bridge arm and bidirectional thyristor TR1, TR2, TR3 do not work, and Vehicular accumulator cell controls motor by inverter circuit and realizes driving function；
Also, three-phase alternating-current supply passes through charge switch, machine winding and inverter circuit to Vehicular accumulator cell quick charge.It is driven when realizing
When dynamic function, bidirectional thyristor TR7 and TR8 closure；When realizing charge function, bidirectional thyristor TR7 and TR8 are disconnected.
When open-circuit fault occurs in a certain bridge arm in the first bridge arm, the second bridge arm and third bridge arm, electric machine controller is disconnected
The driving signal of the power tube in the failure bridge arm is opened, bidirectional thyristor conducting corresponding with the failure bridge arm is triggered, simultaneously will
Power tube in the corresponding control four bridge legs of the driving signal of failure bridge arm, by the bidirectional thyristor and four bridge legs structure being triggered
At redundant circuit put into operation, instead of the failure bridge arm being disconnected, realize the redundancy running under fault condition.With the first bridge arm
In power tube Q1 or power tube Q2 there is open-circuit fault for, electric machine controller disconnect power tube Q1 and power tube Q2 driving
Signal, control bidirectional thyristor TR3 conducting, the driving signal for being used for power tube Q1 and power tube Q2 originally is respectively used to control
Power tube Q10 and power tube Q11, the redundant circuit for making bidirectional thyristor TR3 and four bridge legs constitute the first bridge arm put into operation,
Realize faults-tolerant control.Vehicular accumulator cell realizes driving function still through inverter circuit control motor, and three-phase alternating-current supply still may be used
By charge switch and machine winding, occurred from inverter circuit to Vehicular accumulator cell quick charge, performance indexes and failure
It is preceding the same.
Similarly with embodiment 1, the both ends of the first bridge arm, the second bridge arm and third bridge arm are provided with fuse, are related to
Fuse have fuse F1, F2, F3, F4, F5 and F6, in the present embodiment, this six fuses are fastp-acting fuse.In this way
If, other than above-mentioned open-circuit fault, when one of them of a certain bridge arm in the first bridge arm, the second bridge arm and third bridge arm
When there is short trouble in power tube, the complementary power pipe on corresponding bridge arm, two fuses and Vehicular accumulator cell on the bridge arm
With regard to forming circuit, two fuses are because overcurrent is blown, which is disconnected from the circuit, and short trouble is automatically converted to open a way
Failure recycles above-mentioned open-circuit fault of power tubes fault-tolerance approach to carry out faults-tolerant control.So the first bridge arm, the second bridge arm and
Three bridge arms increase fuse, for being quickly disconnected from the circuit corresponding bridge arm when short trouble occurs for power tube, protect
Protection circuit other elements are not damaged, and realize faults-tolerant control.
Claims (9)
1. the fault tolerable circuit of a kind of integrated driving and charge function, which is characterized in that described including inverter circuit and charging circuit
Inverter circuit includes the first bridge arm being arranged in parallel, the second bridge arm, third bridge arm and four bridge legs, goes here and there and sets on first bridge arm
There are the first power tube and the second power tube, string is equipped with the 4th power tube and the 5th power tube, the third on second bridge arm
String is equipped with the 7th power tube and the 8th power tube on bridge arm, and string is equipped with the tenth power tube and the 11st power on the four bridge legs
Pipe, the first phase winding of the tie point connection motor of first power tube and the second power tube, the 4th power tube and the
The tie point of second phase winding of the tie point connection motor of five power tubes, the 7th power tube and the 8th power tube connects electricity
The tie point and the tenth power tube and the 11st power of the third phase winding of machine, first power tube and the second power tube
The tie point of pipe is connected by the first control switch, the tie point and the tenth function of the 4th power tube and the 5th power tube
The tie point of rate pipe and the 11st power tube is connected by the second control switch, the company of the 7th power tube and the 8th power tube
Contact is connect with the tie point of the tenth power tube and the 11st power tube by third control switch, the charging circuit packet
It includes for by the tie point of the first power tube and the second power tube, the tie point of the 4th power tube and the 5th power tube and the
First group of charging paths that the tie point of seven power tubes and the 8th power tube charges to Vehicular accumulator cell, first group of charging branch
String is equipped with charge switch in each charging paths in road, and the other end of each charging paths in first group of charging paths is for connecting
AC power source.
2. the fault tolerable circuit of integrated driving according to claim 1 and charge function, which is characterized in that the fault tolerable circuit
Application be double three-phase machine, the double three-phase machine have first set winding and second set of winding, the first set around
Group includes first phase winding, the second phase winding and third phase winding, and second set of winding includes the 4th phase winding, the 5th
Phase winding and the 6th phase winding, also string is equipped with third power tube, first power tube, the second power tube on first bridge arm
It is sequentially connected with third power tube, also string is equipped with the 6th power tube, the 4th power tube, the 5th power on second bridge arm
Pipe and the 6th power tube are sequentially connected, and also string is equipped with the 9th power tube, the 7th power tube, the 8th function on the third bridge arm
Rate pipe and the 9th power tube are sequentially connected, and also string is equipped with the 12nd power tube, the tenth power tube, the on the four bridge legs
11 power tubes and the 12nd power tube are sequentially connected, and second power tube connects described with the tie point of third power tube
The tie point of four phase windings, the 5th power tube and the 6th power tube connects the 5th phase winding, the 8th power tube
The 6th phase winding, the tie point and institute of second power tube and third power tube are connected with the tie point of the 9th power tube
The tie point for stating the 11st power tube and the 12nd power tube is connected by the 4th control switch, the 5th power tube and the 6th
The tie point of power tube is connect with the tie point of the 11st power tube and the 12nd power tube by the 5th control switch, institute
The tie point for stating the tie point and the 11st power tube and the 12nd power tube of the 8th power tube and the 9th power tube passes through
The connection of 6th control switch, the charging circuit further include for by the second power tube and third power tube tie point, the
The tie point of the tie point and the 8th power tube of five power tubes and the 6th power tube and the 9th power tube to Vehicular accumulator cell into
Second group of charging paths of row charging, string is equipped with charge switch in each charging paths in second group of charging paths, and second group is filled
The other end of each charging paths in electric branch is for connecting the AC power source.
3. the fault tolerable circuit of integrated driving according to claim 2 and charge function, which is characterized in that first control
Switch, the second control switch, third control switch, the 4th control switch, the 5th control switch and the 6th control switch are double
To thyristor.
4. the fault tolerable circuit of integrated driving according to claim 1 and charge function, which is characterized in that first power
Pipe connects one end of first phase winding, the company of the 4th power tube and the 5th power tube with the tie point of the second power tube
Contact connects one end of second phase winding, the tie point connection third phase of the 7th power tube and the 8th power tube
One end of winding, each charging paths in first group of charging paths are correspondingly connected with the other end of the first phase winding, the second phase winding
The other end and third phase winding the other end.
5. the fault tolerable circuit of integrated driving according to claim 4 and charge function, which is characterized in that first phase around
It is provided with the 7th control switch between group and the second phase winding, is provided with the 8th between second phase winding and third phase winding
Control switch.
6. the fault tolerable circuit of integrated driving according to claim 2 or 3 and charge function, which is characterized in that described first
The tie point of power tube and the second power tube connects one end of first phase winding, the 4th power tube and the 5th power tube
Tie point connect one end of second phase winding, the tie point connection of the 7th power tube and the 8th power tube described the
One end of three-phase windings, each charging paths in first group of charging paths are correspondingly connected with the other end of the first phase winding, the second phase
The other end of winding and the other end of third phase winding, second power tube connect described with the tie point of third power tube
The tie point of one end of four phase windings, the 5th power tube and the 6th power tube connects one end of the 5th phase winding, institute
The tie point for stating the 8th power tube and the 9th power tube connects one end of the 6th phase winding, each in second group of charging paths
Charging paths are correspondingly connected with the other end, the other end of the 5th phase winding and the other end of the 6th phase winding of the 4th phase winding.
7. the fault tolerable circuit of integrated driving according to claim 6 and charge function, which is characterized in that first phase around
It is provided with the 7th control switch between group and the second phase winding, is provided with the 8th between second phase winding and third phase winding
Control switch is provided with the 9th control switch, the 4th phase winding and between the 5th phase winding and the 6th phase winding
The tenth control switch is provided between five phase windings.
8. the fault tolerable circuit of integrated driving according to claim 2 or 3 and charge function, which is characterized in that described first
The both ends of bridge arm, the second bridge arm and third bridge arm are provided with fuse.
9. the fault tolerable circuit of integrated driving according to claim 2 or 3 and charge function, which is characterized in that described 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 and the 12nd power tube are IGBT, and it is reversed simultaneously
It is associated with corresponding diode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711008737.8A CN109713738A (en) | 2017-10-25 | 2017-10-25 | A kind of fault tolerable circuit of integrated driving and charge function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711008737.8A CN109713738A (en) | 2017-10-25 | 2017-10-25 | A kind of fault tolerable circuit of integrated driving and charge function |
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| CN109713738A true CN109713738A (en) | 2019-05-03 |
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| CN201711008737.8A Pending CN109713738A (en) | 2017-10-25 | 2017-10-25 | A kind of fault tolerable circuit of integrated driving and charge function |
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| CN111262421A (en) * | 2020-02-28 | 2020-06-09 | 致瞻科技(上海)有限公司 | Isolated three-phase fault-tolerant circuit, control method, control system and storage medium |
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| CN112046312A (en) * | 2020-09-01 | 2020-12-08 | 南通大学 | Six-phase electrically-driven reconfiguration type direct-current quick charger for automobile and control method thereof |
| CN112389209A (en) * | 2019-08-15 | 2021-02-23 | 比亚迪股份有限公司 | Energy conversion device and vehicle |
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Application publication date: 20190503 |