CN102497091A - Three-phase inverter fault tolerance circuit used for electric vehicle - Google Patents
Three-phase inverter fault tolerance circuit used for electric vehicle Download PDFInfo
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- CN102497091A CN102497091A CN2011104439071A CN201110443907A CN102497091A CN 102497091 A CN102497091 A CN 102497091A CN 2011104439071 A CN2011104439071 A CN 2011104439071A CN 201110443907 A CN201110443907 A CN 201110443907A CN 102497091 A CN102497091 A CN 102497091A
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- 230000000295 complement effect Effects 0.000 description 3
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Abstract
The invention provides a three-phase inverter fault tolerance circuit used for an electric vehicle. One end of each of a first power switch, a second power switch, and a third power switch is grounded through a bus capacitor C1 and a bus capacitor C2. The other end of each of the first power switch, the second power switch and the third power switch is correspondingly connected with one end of each of a fourth power switch, a fifth power switch and a sixth power switch. The other end of each of the fourth power switch, the fifth power switch and the sixth power switch is grounded. A trigger end of each of the first power switch, the second power switch, the third power switch, the fourth power switch, the fifth power switch and the sixth power switch is connected with a motor controller respectively. A connection point of the first power switch and the fourth power switch is connected with an A phase winding of a motor. A connection point of the second power switch and the fifth power switch is connected with a B phase winding of the motor. A connection point of the third power switch and the sixth power switch is connected with a C phase winding of the motor. The A phase winding, the B phase winding and the C phase winding are connected to a connection point of the bus capacitor C1 and the bus capacitor C2 through a first bidirectional thyristor, a second bidirectional thyristor and a third bidirectional thyristor. A trigger end of each of the first bidirectional thyristor, the second bidirectional thyristor and the third bidirectional thyristor is connected with the motor controller respectively. According to the utility model, since a four-switch three-phase operation mode has no restriction to a connection method of a motor winding, SVPWM control can be realized, and needed additional cost is low.
Description
Technical field
The present invention relates to the fault-tolerant control device of a kind of three-phase inverter.Particularly relate to a kind of fault-tolerant ability that breaks down mutually in automobile-used motor inverter that has, operate in the electric vehicles three-phase inverter fault tolerable circuit of four switch three-phase operation modes after the fault.
Background technology
Three-phase inverter is the power inverter that the most often adopts in the electric vehicles permanent magnet synchronous motor control system.Yet power semiconductor wherein and control circuit thereof are the weak links that is prone to most break down, and its integrity problem is never effectively solved.Power inverter is to be prone to the weak link that breaks down in the drive system most in the motor of electric vehicle drive system.In a single day power inverter breaks down, and gently then will cause system-down influence to drive, heavy then cause catastrophic failure.Although people take methods such as design of Reducing Rating or use parallel redundancy element for the reliability that improves the motor vehicle motor driven systems, this can make system cost too high, is only applicable to the occasion of steric requirements permission.
Continue or the ability that runs without interruption for the automobile permanent magnet synchronous motor system can be had behind fault of converter, need improve, realize fault-tolerant reconstruct and fault-tolerant operation its topological structure.After fault takes place, at first defective device is isolated, utilize remaining switching device maintenance system under the situation of partial degradation to run without interruption then.This mode can be practiced thrift the hardware cost that adopts redundancy scheme to bring, and guarantees electric automobile fault-tolerant operation and unlikely shutdown when the electric machine controller inverter breaks down simultaneously, has guaranteed the fail safe and the practicality of car load.
Summary of the invention
Technical problem to be solved by this invention is, all bidirectional thyristors all broke off when a kind of fault-free was provided, and system is through six switches power supply operate as normal; When fault took place, fault phase switching device was excised, and touched simultaneously and led to the bidirectional thyristor that connects motor windings and busbar voltage mid point, and making system reconfiguration is the electric vehicles three-phase inverter fault tolerable circuit of two phases, four switching systems.
The technical scheme that the present invention adopted is: a kind of electric vehicles three-phase inverter fault tolerable circuit; Include first～the 6th power switch; Bus capacitor C1; And motor A phase winding, motor B phase winding, motor C phase winding; Also be provided with first～the 3rd bidirectional thyristor and bus capacitor C2; Wherein, One end of described first power switch, second power switch and the 3rd power switch is respectively successively through bus capacitor C1 and bus capacitor C2 ground connection, and the other end of first power switch, second power switch and the 3rd power switch difference correspondence is connected an end of the 4th power switch, the 5th power switch and the 6th power switch, the other end ground connection of described the 4th power switch, the 5th power switch and the 6th power switch; The trigger end of described first～the 6th power switch connects electric machine controller respectively; Described first power switch is connected motor A phase winding with the tie point of the 4th power switch, and second power switch is connected motor B phase winding with the tie point of the 5th power switch, and the 3rd power switch is connected motor C phase winding with the tie point of the 6th power switch; Described motor A phase winding, motor B phase winding and motor C phase winding are corresponding respectively passes through on the tie point that first bidirectional thyristor, second bidirectional thyristor and the 3rd bidirectional thyristor be connected bus capacitor C1 and bus capacitor C2, and the trigger end of described first bidirectional thyristor, second bidirectional thyristor and the 3rd bidirectional thyristor is connected electric machine controller respectively.
Also be provided with first fuse, second fuse and the 3rd fuse, described first fuse, second fuse and the 3rd fuse are corresponding respectively is connected on the connecting line between motor A phase winding, motor B phase winding and motor C phase winding and corresponding first～the 6th power switch.
Electric vehicles three-phase inverter fault tolerable circuit of the present invention, bidirectional thyristors all during fault-free all break off, and system is through six switches power supply operate as normal; When fault took place, fault phase switching device was excised, and touched simultaneously and led to the bidirectional thyristor that connects motor windings and busbar voltage mid point, and making system reconfiguration is two phases, four switching systems.Because four switch three-phase operation modes do not limit the method that connects of motor windings, and can realize SVPWM control, required fringe cost is less.
Description of drawings
Fig. 1 is the topological diagram of electric vehicles three-phase inverter fault tolerable circuit of the present invention;
Fig. 2 is the fault-tolerant topological diagram after A phase brachium pontis breaks down in the three-phase inverter.
Embodiment
Below in conjunction with embodiment and accompanying drawing electric vehicles three-phase inverter fault tolerable circuit of the present invention is made detailed description.
Electric vehicles three-phase inverter fault tolerable circuit of the present invention has the fault-tolerant ability that breaks down mutually in automobile-used motor inverter, operates in four switch three-phase operation modes after the fault.Sort circuit is that the every phase winding of motor is respectively linked to each other with bus bus capacitor mid point through a bidirectional thyristor; After fault takes place; At first that fault is isolated; Trigger corresponding bidirectional thyristor then, fault phase winding end points is linked to each other with bus bus capacitor mid point, need control strategy be changed into three-phase four switch control strategies after the fault.When certain breaks down mutually, adopt four switch three-phase operation mode fault three-phase inverter operate as normal, inverter does not trigger.When because four switch three-phase operation modes to the not restriction of the method that connects of motor windings, and can realize SVPWM control, required fringe cost is less.
As shown in Figure 1; The fault-tolerant control circuit of electric vehicles three-phase inverter of the present invention; Include first～the 6th power switch VT1, VT2, VT3, VT4, VT5, VT6; Bus capacitor C1; Motor A phase winding, motor B phase winding, motor C phase winding; And first～the 3rd bidirectional thyristor TRa, TRb, TRc and bus capacitor C2; Wherein, The end of the described first power switch VT1, the second power switch VT2 and the 3rd power switch VT3 is respectively successively through bus capacitor C1 and bus capacitor C2 ground connection, and the other end of the first power switch VT1, the second power switch VT2 and the 3rd power switch VT3 difference correspondence is connected the end of the 4th power switch VT4, the 5th power switch VT5 and the 6th power switch VT6, the other end ground connection of described the 4th power switch VT4, the 5th power switch VT5 and the 6th power switch VT6; The trigger end of described first～the 6th power switch VT1, VT2, VT3, VT4, VT5, VT6 connects electric machine controller respectively; The described first power switch VT1 is connected motor A phase winding with the tie point of the 4th power switch VT4, and the second power switch VT2 is connected motor B phase winding with the tie point of the 5th power switch VT5, and the 3rd power switch VT3 is connected motor C phase winding with the tie point of the 6th power switch VT6; The pass through first bidirectional thyristor TRa, the second bidirectional thyristor TRb and the 3rd bidirectional thyristor TRc that described motor A phase winding, motor B phase winding and motor C phase winding are corresponding respectively are connected on the tie point of bus capacitor C1 and bus capacitor C2, and the trigger end of the described first bidirectional thyristor TRa, the second bidirectional thyristor TRb and the 3rd bidirectional thyristor TRc is connected electric machine controller respectively.
Also be provided with the first fuse F a, the second fuse F b and the 3rd fuse F c, the described first fuse F a, the second fuse F b and the 3rd fuse F c are corresponding respectively is connected on the connecting line between motor A phase winding, motor B phase winding and motor C phase winding and corresponding first～the 6th power switch VT1, VT2, VT3, VT4, VT5, the VT6.
Electric vehicles three-phase inverter fault tolerable circuit of the present invention; After detecting certain phase switch short trouble; The drive signal of electric machine controller open failure switch complementary switch; In case the bridge arm direct pass short circuit triggers bidirectional thyristor conducting corresponding among first～the 3rd bidirectional thyristor TRa, TRb, the TRc then, half side like this bus bus capacitor, bidirectional thyristor, fuse, short trouble power switch form a loop; Be stored in the energy fusing fuse in the bus capacitor, breakdown switch is isolated from inverter.Must turn-off remaining two pipes of inverter conducting thyristor more simultaneously earlier, otherwise the bus capacitor two ends are prone to shoot through.Have only four pipe power supplies during fault-tolerant operation, remaining two pipes need to guarantee to be in off state always.
Fault-tolerant topology after the first power switch VT1 or the second power switch VT2 fault is as shown in Figure 2, and after detecting switch fault, the drive signal of controller open failure switch complementary switch is in case the bridge arm direct pass short circuit triggers the first bidirectional thyristor TR then
aConducting, fault first power switch VT1 or second power switch VT2 place brachium pontis are isolated from inverter.
Also can protect certain open fault mutually that occurs in inverter brachium pontis and bidirectional thyristor end through the first bidirectional thyristor TRa, the second bidirectional thyristor TRb; When a certain switch open fault takes place when, only need its complementary switch is broken off, bidirectional thyristor triggering and conducting corresponding among the first bidirectional thyristor TRa, the second bidirectional thyristor TRb is got final product.
The fault-tolerant control circuit of electric vehicles three-phase inverter of the present invention adopts cheaply, and thyristor, fuse promptly can carry out fault-tolerant to three-phase inverter power switch fault effectively.
Claims (2)
1. electric vehicles three-phase inverter fault tolerable circuit; Include first～the 6th power switch (VT1, VT2, VT3, VT4, VT5, VT6); Bus capacitor C1; And motor A phase winding, motor B phase winding, motor C phase winding; It is characterized in that; Also be provided with first～the 3rd bidirectional thyristor (TRa, TRb, TRc) and bus capacitor C2; Wherein, One end of described first power switch (VT1), second power switch (VT2) and the 3rd power switch (VT3) is respectively successively through bus capacitor C1 and bus capacitor C2 ground connection; The corresponding respectively end that is connected the 4th power switch (VT4), the 5th power switch (VT5) and the 6th power switch (VT6) of the other end of first power switch (VT1), second power switch (VT2) and the 3rd power switch (VT3); The other end ground connection of described the 4th power switch (VT4), the 5th power switch (VT5) and the 6th power switch (VT6), the trigger end of described first～the 6th power switch (VT1, VT2, VT3, VT4, VT5, VT6) connects electric machine controller respectively, and described first power switch (VT1) is connected motor A phase winding with the tie point of the 4th power switch (VT4); Second power switch (VT2) is connected motor B phase winding with the tie point of the 5th power switch (VT5); The 3rd power switch (VT3) is connected motor C phase winding with the tie point of the 6th power switch (VT6), and pass through first bidirectional thyristor (TRa), second bidirectional thyristor (TRb) and the 3rd bidirectional thyristor (TRc) that described motor A phase winding, motor B phase winding and motor C phase winding are corresponding respectively are connected on the tie point of bus capacitor C1 and bus capacitor C2, and described first bidirectional thyristor (TRa), second bidirectional thyristor (TRb) and the trigger end of the 3rd bidirectional thyristor (TRc) are connected electric machine controller respectively.
2. electric vehicles three-phase inverter fault tolerable circuit according to claim 1; It is characterized in that; Also be provided with first fuse (Fa), second fuse (Fb) and the 3rd fuse (Fc), described first fuse (Fa), second fuse (Fb) and the 3rd fuse (Fc) are corresponding respectively is connected on the connecting line between motor A phase winding, motor B phase winding and motor C phase winding and corresponding first～the 6th power switch (VT1, VT2, VT3, VT4, VT5, VT6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104439071A CN102497091A (en) | 2011-12-26 | 2011-12-26 | Three-phase inverter fault tolerance circuit used for electric vehicle |
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| CN2011104439071A CN102497091A (en) | 2011-12-26 | 2011-12-26 | Three-phase inverter fault tolerance circuit used for electric vehicle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281019A (en) * | 2013-05-29 | 2013-09-04 | 东南大学 | Permanent magnet synchronous motor fault-tolerant-type traction module and control method thereof |
| CN106253791A (en) * | 2016-08-10 | 2016-12-21 | 上海电机学院 | A kind of fault-tolerant pair of Reliability Insurance motor driver of height used for electric vehicle |
| CN106571750A (en) * | 2016-08-05 | 2017-04-19 | 中南大学 | Fault tolerance type tri-leg two-phase orthogonal inverter |
| CN106787142A (en) * | 2016-12-29 | 2017-05-31 | 湖南大学 | A kind of error-tolerance type electromagnetic agitation power-supply system and its control method |
| CN108494241A (en) * | 2018-05-03 | 2018-09-04 | 河南森源重工有限公司 | A kind of double three-phase machine system and failure tolerant circuit |
| CN108768198A (en) * | 2018-03-09 | 2018-11-06 | 中南大学 | A kind of redundancy structure Fault tolerant inverter and its control strategy applied to grid-connected microgrid |
| CN111987928A (en) * | 2020-08-19 | 2020-11-24 | 上海海事大学 | An adaptive modulation multi-state inverter system and its modulation method |
| CN112290785A (en) * | 2020-11-13 | 2021-01-29 | 上海寰晟电力能源科技有限公司 | A three-phase converter fault tolerance mechanism control circuit and control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6087799A (en) * | 1997-06-20 | 2000-07-11 | Switched Reluctance Drives Limited | Switching circuit for a reluctance machine |
| CN202384993U (en) * | 2011-12-26 | 2012-08-15 | 天津清源电动车辆有限责任公司 | Three-phase inverter fault-tolerant circuit for electric vehicles |
-
2011
- 2011-12-26 CN CN2011104439071A patent/CN102497091A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6087799A (en) * | 1997-06-20 | 2000-07-11 | Switched Reluctance Drives Limited | Switching circuit for a reluctance machine |
| CN202384993U (en) * | 2011-12-26 | 2012-08-15 | 天津清源电动车辆有限责任公司 | Three-phase inverter fault-tolerant circuit for electric vehicles |
Non-Patent Citations (1)
| Title |
|---|
| 杨正专: "新型双通道磁通切换永磁电机容错控制系统研究", 《万方数据知识服务平台》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281019A (en) * | 2013-05-29 | 2013-09-04 | 东南大学 | Permanent magnet synchronous motor fault-tolerant-type traction module and control method thereof |
| CN106571750A (en) * | 2016-08-05 | 2017-04-19 | 中南大学 | Fault tolerance type tri-leg two-phase orthogonal inverter |
| CN106571750B (en) * | 2016-08-05 | 2019-01-08 | 中南大学 | A kind of three bridge arm two-phase orthogonal inverter of error-tolerance type |
| CN106253791A (en) * | 2016-08-10 | 2016-12-21 | 上海电机学院 | A kind of fault-tolerant pair of Reliability Insurance motor driver of height used for electric vehicle |
| CN106787142A (en) * | 2016-12-29 | 2017-05-31 | 湖南大学 | A kind of error-tolerance type electromagnetic agitation power-supply system and its control method |
| CN106787142B (en) * | 2016-12-29 | 2020-02-04 | 湖南大学 | Fault-tolerant electromagnetic stirring power supply system and control method thereof |
| CN108768198A (en) * | 2018-03-09 | 2018-11-06 | 中南大学 | A kind of redundancy structure Fault tolerant inverter and its control strategy applied to grid-connected microgrid |
| CN108494241A (en) * | 2018-05-03 | 2018-09-04 | 河南森源重工有限公司 | A kind of double three-phase machine system and failure tolerant circuit |
| CN111987928A (en) * | 2020-08-19 | 2020-11-24 | 上海海事大学 | An adaptive modulation multi-state inverter system and its modulation method |
| CN112290785A (en) * | 2020-11-13 | 2021-01-29 | 上海寰晟电力能源科技有限公司 | A three-phase converter fault tolerance mechanism control circuit and control method |
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Application publication date: 20120613 |