CN206490617U - Motorized motions fault tolerance facility, power inverter, polyphase machine and electrical equipment - Google Patents
Motorized motions fault tolerance facility, power inverter, polyphase machine and electrical equipment Download PDFInfo
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- CN206490617U CN206490617U CN201720153928.2U CN201720153928U CN206490617U CN 206490617 U CN206490617 U CN 206490617U CN 201720153928 U CN201720153928 U CN 201720153928U CN 206490617 U CN206490617 U CN 206490617U
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Abstract
The utility model provides a kind of motorized motions fault tolerance facility, power inverter, polyphase machine and electrical equipment with fault tolerance.The motorized motions fault tolerance facility that the utility model is provided, for driving electrical equipment, including：Polyphase machine；Dc source；Instruct sending part；Current sensor；Output transducer；Controller；Driver；Power inverter, it is characterised in that：Wherein, polyphase machine winding has j+i separate and parameter identical polyphase windings units, power inverter has the separate and parameter identical power conversion unit of connection corresponding with j+i polyphase windings unit, there is each power conversion unit k power conversion circuit to provide k line currents to corresponding polyphase windings unit, driver has j+i separate and parameter identical driver elements, it is connected respectively with j+i power conversion unit, k is the positive integer more than 2, j is the positive integer more than 1, and i is redundant digit and is natural number.
Description
Technical field
The utility model belongs to machine field, more particularly to a kind of motorized motions fault tolerance facility, work(with fault tolerance
Rate converter, polyphase machine and electrical equipment.
Background technology
In society now, the requirement more and more higher to environmental protection, the environmental protection standard of various equipment is also improved therewith.For
Preferably environmental protection, country has issued various policies and widelys popularize new energy and regenerative resource.
At present, it has been the main flow of present day devices development as the power of various equipment using electric energy.Using electricity as the energy electricity
Dynamic equipment such as electric automobile, electri forklift are also increasingly favored by manufacturer and consumer.Electrical equipment not only pollute it is small,
Electric energy can be provided by regenerative resource, moreover, compared with fuel oil equipment, it also have energy utilization rate it is high, simple in construction,
Noise is small, dynamic property is good and the advantages of high portability.Under petroleum resources increasingly intense situation, electric drive is greatly developed
Device, the particularly high-power for example electronic battlebus of electric driver, electronic warship, Electric aircraft and electric drive aircraft carrier etc.
Deng having far-reaching significance for national defense safety.
In existing Vidacare corp, the requirement to power conversion pipe is extremely harsh, in normal work, and power becomes
Pipe is changed to must operate at below maximum operation temperature, maximum operating currenbt and maximum working voltage, once surmount any one
Part, power conversion pipe is very easy to damage；In addition, when the change of the component parameter in electronic circuit exceeds normal range of operation
When, overvoltage or overcurrent may be produced in power conversion pipe, causes power conversion pipe to damage and then causes electrical equipment event
Barrier；In addition, with the increase of working time, aging, maximum operation temperature, maximum operating currenbt and maximum occur for power conversion pipe
Operating voltage is all decreased, and easily causes power conversion pipe to damage and then fail, and triggers electrical equipment failure even safe thing
Therefore.
In Vidacare corp, after the open circuit of armature winding or short circuit, the line current in machine winding is inevitable not
Balance, causes the electromagnetic torque produced by it uneven, cause torque vibration, noise or can not output torque, have influence on equipment
Normal work, or even jeopardize property and life security.
As shown in Fig. 2 the circuit structure signal of high current polyphase machine and power inverter common in the prior art
In figure, what power inverter or polyphase machine had directly influenced Vidacare corp and electrical equipment after breaking down can
By property and security, under high speed operation state, endanger more serious.
High-power electric drive device and electrical equipment, particularly low-voltage, high-current Vidacare corp and electrical equipment,
Continuous operating current very big controller or power inverter is needed, and related technology and product is controlled by individual countries and company
System and monopolize, cause price very high, and the high-performance electric machine controller that can purchase of in the market or power inverter output
Line current value also be only below a kiloampere.After all, exactly generate manufacture level and limit single power switch
The current value of pipe, the Current Sharing Technology of multiple power switch pipes can not meet linear rule or control circuit and algorithm excessively
The reasons such as complexity, seriously restrict and have impact on the development of low-voltage, high-current Vidacare corp and electrical equipment.
In addition, it is high-power, particularly in MW class motor, current value exceeds well over the most Dalian that power conversion pipe can be born
Continuous operating current, so reducing the line current of motor using by increasing the number of phases of motor.But, the raising of the number of phases, because
Traditional design, manufacture and control method are different from, cost, the difficulty and complexity of production are added.In correlation technique not yet
When ripe, it is impossible to applied and popularized, restrict and have impact on heavy-duty motor, Vidacare corp and electrical equipment and be particularly
The development of electronic military equipment.
In summary, these problems have had a strong impact on high-power electric equipment, including low-voltage, high-current electric car,
The development of electronic battlebus, electronic warship, Electric aircraft and electric drive aircraft carrier on electric ship, or even national defence.
Utility model content
The utility model is carried out to solve the above problems, it is therefore intended that provide a kind of electricity with fault tolerance
Dynamic driving fault tolerance facility, power inverter, polyphase machine and electrical equipment.
<Structure one>
The utility model provides a kind of motorized motions fault tolerance facility, is arranged in electrical equipment, for driving electronic set
It is standby, including：Polyphase machine, the number of phases of its polyphase machine winding is k, with rated line voltage and specified line current；Dc source,
With the constant voltage corresponding with the rated line voltage of polyphase machine, the line electricity corresponding with specified line current for providing
Stream；Sending part is instructed, the command signal corresponding with the rotating speed or the value of torque that polyphase machine is exported is sent；Current sensor,
Detection constitutes the line current value of the polyphase windings unit of polyphase machine winding, and sends corresponding current feedback signal；Output is passed
Sensor, the rotating speed of detection polyphase machine output or torque, and send corresponding output feedback signal；Controller, believes according to instruction
Number, current feedback signal and output feedback signal calculate and output motor control signal, according to current feedback signal and by predetermined
Control rule output operation control signal；Driver, enters working condition or halted state under operation control signal effect,
Drive signal is produced according to operation control signal under working condition；Power inverter, by direct current in the presence of drive signal
Be converted to the line current of polyphase machine needs, it is characterised in that：Wherein, polyphase machine winding has j+i separate and ginsengs
Number identical polyphase windings unit, power inverter has j+i connected one to one with j+i polyphase windings unit mutually
Independence and parameter identical power conversion unit, each power conversion unit have k power conversion circuit to corresponding multiphase
Winding element provides k line currents, and driver has j+i separate and parameter identical driver elements, respectively with j+i
Power conversion unit is connected, and k is the positive integer more than 2, and j is the positive integer more than 1, and i is redundant digit and is natural number.
The motorized motions fault tolerance facility that the utility model is provided can also have such technical characteristic：Wherein, power is worked as
The continuous operating current virtual value of maximum that the single power conversion circuit of converter unit is normally exported is I1, the maximum of polyphase machine
Line current virtual value is INWhen, the number j of polyphase windings unit meets following conditions：J ＞ IN÷I1, wherein, j is more than 1 just
Integer.
The motorized motions fault tolerance facility that the utility model is provided can also have such technical characteristic：Wherein, direct current
Source is battery or rectifier power source.
The motorized motions fault tolerance facility that the utility model is provided can also have such technical characteristic：Wherein, multiphase electricity
Machine is any one in asynchronous machine, synchronous motor, switched reluctance machines, brshless DC motor, stepper motor, polyphase machine
Winding and can be divided exactly around radical by the number j+i of polyphase windings unit, the winding of polyphase machine winding and polyphase windings unit
The number of phases, winding phase sequence, umber of turn, winding connection are identical with rated voltage.
The motorized motions fault tolerance facility that the utility model is provided can also have such technical characteristic：Wherein, power becomes
Change unit be made up of SPM or comprising multiple types and parameter identical power switch pipe, power switch pipe
For electric power field-effect transistor (Power MOSFET), gate level turn-off thyristor (GTO), integrated gate commutated thyristor
(IGCT), in insulated gate bipolar transistor (IGBT), electric power bipolar transistor (GTR) and door pole stream-exchanging thyristor (SGCT)
Any one.
<Structure two>
Further, the utility model additionally provides a kind of power inverter with fault tolerance, is k with the number of phases, has
Rated line voltage and specified line current and contain separate and parameter identical polyphase windings unit the multiphases electricity of j+i
Machine, and be respectively connected with constant voltage and for providing the dc source corresponding with specified line current, for root
Dc source is supplied to polyphase machine by the drive signal exported according to driver, it is characterised in that including：J+i power conversion
Unit, it is corresponding with j+i polyphase windings unit difference, wherein, each power conversion unit has k separate and parameters
Identical power conversion circuit, so as to provide k line currents to corresponding polyphase windings unit, k is the positive integer more than 2, and j is
Positive integer more than 1, i is redundant digit and is natural number.
<Structure three>
Further, the utility model additionally provides a kind of polyphase machine with fault tolerance, with rated line voltage and
Specified line current, is connected with j+i separate and parameter identical power conversion units, power conversion unit according to
The direct current for coming from the dc source output with constant voltage is converted to specified line current by drive signal, and its feature exists
In, including：At least one set of polyphase machine winding, its number of phases is k, with the j+i corresponding with j+i power conversion unit difference
Individual separate and parameter identical polyphase windings unit, wherein, each polyphase windings unit receives each power conversion list
The k line currents that k in the member power conversion circuits being connected in parallel to each other are provided, k is the positive integer more than 2, and j is more than 1
Positive integer, i is redundant digit and for natural number.
<Structure four>
Further, the utility model additionally provides a kind of electrical equipment containing above-mentioned motorized motions fault tolerance facility.
The effect of utility model and effect
Motorized motions fault tolerance facility and electrical equipment according to involved by the utility model, j+i driver element be all
Separate and parameter identical, j+i power conversion unit is all separate and parameter identical, j+i polyphase windings
Unit is also separate and parameter identical, and each driver element correspondence is connected to a power conversion unit and more than one
Under phase winding unit, normal condition, it is only necessary to which j driver element, j power conversion unit and j polyphase windings unit can
To ensure motorized motions fault tolerance facility and electrical equipment normal work, other i driver elements, i power conversion unit and i
Individual polyphase windings unit is redundancy, is favorably improved the reliability and security of system.So, when any one driving is single
When member, power conversion unit or polyphase windings unit produce failure, motorized motions fault tolerance facility of the present utility model and electronic
Equipment calculated by detecting the driver element that the line current value of all same phases of polyphase windings unit judges to break down,
After power conversion unit or polyphase windings unit, controller output operation control signal makes corresponding driver element be stopped,
So as to carry out shielding isolation, and start the drive of redundancy the driver element of damage, multiphase power converting unit, polyphase windings unit
Moving cell, power conversion unit and polyphase windings unit, it is ensured that the normal operation of electrical equipment, it is to avoid in the process of running by
Cause the loss that performance indications mutation is produced in catastrophic failure, the safety of the electrical equipment of high-speed cruising has also been dramatically reduced
The probability that accident occurs.
In addition, in start-up course, during urgent reversing braking, when carrying out an urgent task, being required for bigger motor
Electric current, at this moment, can be i driver element of redundancy, i power conversion unit and i polyphase windings cell mesh or whole
Come into operation, improve the electric current of polyphase machine, and then improve output speed or torque, or reduce power conversion unit and multiphase
The electric current of winding element improves motorized motions fault tolerance facility and electricity so as to reduce caloric value and the temperature rise of power switch pipe and motor
Rapidity, security and the flexibility of dynamic equipment.
Power inverter according to involved by the utility model, contains j+i separate and parameter identical power
Converter unit, is not present the technical problem of parallel current-sharing between them, the electric current of output meets linear superposition relation, as long as increase
J+i numerical value, the output current of power inverter can be just readily added.The technical monopoly of foreign country not only broken, carried
High reliability and security, technical difficulty and production cost are reduced, also help development high-power, even hundred MW class
Electronic military equipment.
Polyphase machine according to involved by the utility model, contain j+i separate and parameter identical multiphases around
Group unit, their line current meets linear superposition relation.For high-power polyphase machine, particularly low-voltage, high-current multiphase electricity
Machine, as long as the numerical value of j+i polyphase windings unit of increase, the line current of each polyphase windings unit just can easily drop
It is low.The requirement to output current of power converter is advantageously reduced, connecting line, motor connect between reduction power inverter and motor
The heating of line box and insulating requirements.Furthermore, it is possible to the ripe design of the polyphase machine of the conventional number of phases (such as three phase electric machine) of utilization,
Manufacture and control method, reduce cost, the difficulty and complexity of production.On the polyphase machine basis involved by the utility model
On greatly developed for high-power, even hundred MW class electronic military equipments.
In summary, motorized motions fault tolerance facility of the present utility model has structure design simple, reasonable, and cost is low, hair
Heat is small, stable work in work, response quickly, safe and reliable, the advantages of service life is long.
Brief description of the drawings
Fig. 1 is the electrical block diagram of motorized motions fault tolerance facility in embodiment of the present utility model；And
Fig. 2 is the electrical block diagram of high current polyphase machine common in the art and power inverter；
Embodiment
Illustrate embodiment of the present utility model below in conjunction with accompanying drawing.
Motorized motions fault tolerance facility 10 is arranged on electrical equipment such as electric tool, four-axle aircraft, electric automobile, electric ship
Oceangoing ship, electri forklift, in electronic military equipment, for driving electrical equipment.
Fig. 1 is the electrical block diagram of the motorized motions fault tolerance facility in the present embodiment.
As shown in figure 1, motorized motions fault tolerance facility 10 includes polyphase machine 11, dc source 12, instruction sending part 13, electricity
Flow sensor 14, output transducer 15, controller 16, driver 19 and power inverter 20.
The number of phases of polyphase machine 11 is k, with rated line voltage and specified line current.Polyphase machine 11 is asynchronous electricity
Any one in machine, synchronous motor, switched reluctance machines, brshless DC motor, stepper motor.In the present embodiment, multiphase
Motor 11 is asynchronous machine.
Polyphase machine 11 has an armature and the polyphase machine winding on armature.In the present embodiment, it is many
The group number of phase machine winding is identical with the number of armature, when armature number is two and the above, using many of two groups and the above
Phase machine winding.Every group of polyphase machine winding includes j+i separate and parameter identical polyphase windings units 111, j+i's
Number can by the winding of polyphase machine 11 and averagely split around radical, j number is more than or equal to 2.It is many before and after splitting
Phase machine winding and the winding number of phases of j+i polyphase windings unit, winding phase sequence, umber of turn, winding connection and specified
Voltage keeps constant.
In the present embodiment, k is three, i.e., polyphase machine 11 is three phase electric machine, accordingly, and polyphase windings unit 111 is three
Phase winding unit, each three-phase windings unit has three independent winding A, B, C.
Dc source 12 has the constant voltage corresponding with the rated line voltage of polyphase machine 11, for offer and motor
The corresponding direct current of specified line current.In the present embodiment, dc source is battery or rectifier power source.
Sending part 13 is instructed to send the command signal corresponding with the rotating speed of the output of polyphase machine 11 or the value of torque.
The C phase line currents of the detection power conversion unit output of current sensor 14 simultaneously export corresponding current feedback letter
Number.Current feedback signal is received by controller 16.
The rotating speed or torque of the detection polyphase machine output of output transducer 15 simultaneously export corresponding output feedback signal.It is defeated
Go out feedback signal to be received by controller 16.
Controller 16 is passed according to the command signal of instruction sending part 13, the current feedback signal of current sensor 14 and output
The output feedback signal of sensor 15 calculates output motor control signal 17 and the operation control signal 18 of driver element.
The letter of the electric current according to needed for motor control signal 17 controls power conversion unit output polyphase machine 11 of driver 19
Number.Driver 19 produces the drive signal that driving power translation circuit works according to operation control signal 18 in the operating condition.
Driver 19 has j+i separate and parameter identical driver elements 191, and each driver element 191 is simultaneously
The identical signal that controller 16 is sent is received, j+i driver element 191 is connected with j+i power conversion unit 201 respectively
Connect.Driver element 191 enters working condition or halted state according to operation control signal 18.Each driver element 191 can
A phases drive signal, B phases drive signal and C phase drive signals are sent, the three-phase driving signal drives A phase power conversions respectively
Power switch pipe in circuit 201a, B phase power conversion circuit 201b and C phase power conversion circuit 201c, turn it on or
Close.
Power inverter 20 direct current is converted in the presence of drive signal voltage required for polyphase machine 11 and
Electric current.Power inverter 20 includes j+i power conversion unit 201 corresponding with j+i polyphase windings unit 111 respectively.
There are each power conversion unit 201 three to be connected in parallel to each other, structure and parameter identical A phase power conversions
Circuit 201a, B phase power conversion circuit 201b and C phase power conversion circuit 201c.A phase power conversion circuits 201a is connected to
The tie point of A phase windings and C phase windings in winding element 111, B phase power conversion circuits 201b is connected to B in winding element 111
The tie point of phase winding and A phase windings, power conversion circuit 201c is connected to C phase windings and B phase windings in winding element 111
Tie point, provides line current to corresponding polyphase windings unit respectively.
Each power conversion circuit contains two power switch pipes.Two power switch pipes have the maximum continuous work of identical
Make electric current.When only operating current is below maximum continuous operating current, power switch pipe is possible to operation steady in a long-term, such as
Fruit operating current exceedes this current value, and power switch pipe will the breakdown damage due to excessively stream.
In the present embodiment, power conversion unit 201 can be made up of SPM, it would however also be possible to employ multiple types
Combined with parameter identical power switch pipe.
Power switch pipe is electric power field-effect transistor (Power MOSFET), gate level turn-off thyristor (GTO), integrated
(GTR) and gate pole are changed in door pole stream-exchanging thyristor (IGCT), insulated gate bipolar transistor (IGBT), electric power bipolar transistor
Flow any one in IGCT (SGCT).
In the present embodiment, driver elements 191 separate j+i are separate and parameter is identical with j+i respectively
Power conversion unit 201 be connected and powered to j+i separate and parameter identical polyphase windings units 111.
The number i of polyphase windings unit in the present embodiment is natural number, and j is integer and meets following condition：J ＞ IN÷
I1, I in the formula1The continuous operating current virtual value of maximum that normally exports of single power conversion circuit for being power conversion unit is,
INIt is the max line current effective value of polyphase machine.
For power inverter 20, the output current of any one power conversion unit 201 is only coupled
Polyphase windings unit have relation, there is no any electric coupling with other polyphase windings units and its corresponding power conversion unit
Close contact.That is, in the absence of power switch pipe phenomenon in parallel, therefore, eliminating work(in large-current electric machine actuating device
The problem of rate paralleled power switches flow.
In motorized motions fault tolerance facility 10, each driver element is connected to a power conversion unit and a multiphase
Winding element.Driver element output drive signal in the operating condition, the not output drive signal under halted state.
In the present embodiment, predetermined control rule is：In j+i current sensor 14, if a current feedback signal
Continuous is zero and other current feedback signals when being all non-zero, and controller is judged as corresponding driver element failure, inversion unit
Or polyphase windings unit disconnection fault；If a current feedback signal is more than the 1.5 of other current feedback signal average values
Times when, controller judges corresponding inversion unit or polyphase windings unit for short trouble；Controller output operation control signal
So that corresponding driver element enters halted state, so that the polyphase windings unit of damage, multi-phase inverter unit or driving is single
Member carries out shielding isolation.
In normal operation, controller exports j operation control signal and makes j driving motorized motions fault tolerance facility 10
Unit and its corresponding j power conversion unit and j polyphase windings unit are in running order, export i operation control letter
I driver element of command and its corresponding i power conversion unit and i polyphase windings unit are in halted state.Wherein, j
Individual operation control signal can control j driver element of fixation or in corresponding power conversion unit and multiphase
Winding element all not to be extracted j and is controlled in turn in faulty driver element.When driver element and its power of connection
When the quantity that converter unit and polyphase windings unit break down is more than i, controller output operation control signal makes remaining drive
Moving cell is completely in working condition, and the maximum output rotating speed of limiting motor or torque, is operated in low speed or light condition.When
Motorized motions fault tolerance facility 10 is in start-up course, urgent reversing braking process, the occasion such as carry out an urgent task, can be j+i
The no failure part of power conversion unit and j+i polyphase windings unit all comes into operation, and improves the electric current of polyphase machine, enters
And output speed or torque are improved, or reduce the electric current of power conversion unit and polyphase windings unit to reduce power switch
The caloric value and temperature rise of pipe and motor, improve rapidity, security and the flexibility of motorized motions fault tolerance facility and electrical equipment.
The effect of embodiment and effect
Motorized motions fault tolerance facility and electrical equipment according to involved by the present embodiment, j+i driver element is all phase
Mutual independence and parameter identical, j+i power conversion unit is all separate and parameter identical, j+i polyphase windings list
Member is also separate and parameter identical, and each driver element correspondence is connected to a power conversion unit and a multiphase
Under winding element, normal condition, it is only necessary to which j driver element, j power conversion unit and j polyphase windings unit just can be with
Ensure motorized motions fault tolerance facility and electrical equipment normal work, other i driver elements, i power conversion unit and i
Polyphase windings unit is redundancy, is favorably improved the reliability and security of system.So, when any one driver element,
When power conversion unit or polyphase windings unit produce failure, the motorized motions fault tolerance facility and electrical equipment of the present embodiment lead to
The line current value for crossing all same phases of polyphase windings unit of detection calculating judges that the driver element broken down, power become
Change after unit or polyphase windings unit, controller output operation control signal makes corresponding driver element be stopped, so that will
Driver element, multiphase power converting unit, the polyphase windings unit of damage carry out shielding isolation, and start the driving list of redundancy
Member, power conversion unit and polyphase windings unit, it is ensured that the normal operation of electrical equipment, it is to avoid in the process of running due to prominent
Hair failure causes the loss that performance indications mutation is produced, and the security incident of the electrical equipment of high-speed cruising has also been dramatically reduced
The probability of generation.
In addition, in start-up course, during urgent reversing braking, when carrying out an urgent task, being required for bigger motor
Electric current, at this moment, can be i driver element of redundancy, i power conversion unit and i polyphase windings cell mesh or whole
Come into operation, improve the electric current of polyphase machine, and then improve output speed or torque, or reduce power conversion unit and multiphase
The electric current of winding element improves motorized motions fault tolerance facility and electricity so as to reduce caloric value and the temperature rise of power switch pipe and motor
Rapidity, security and the flexibility of dynamic equipment.
Power inverter according to involved by the present embodiment, contains j+i separate and parameter identical power changes
Unit is changed, the technical problem of parallel current-sharing is not present between them, the electric current of output meets linear superposition relation, as long as increase j+
I numerical value, the output current of power inverter can be just readily added.The technical monopoly of foreign country not only broken, improved
Reliability and security, technical difficulty and production cost are reduced, also help high-power, even hundred MW class the electricity of development
Dynamic military equipment.
Polyphase machine according to involved by the present embodiment, contains j+i separate and parameter identical polyphase windings
Unit, their line current meets linear superposition relation.For high-power polyphase machine, particularly low-voltage, high-current multiphase electricity
Machine, as long as the numerical value of j+i polyphase windings unit of increase, the line current of each polyphase windings unit just can easily drop
It is low.The requirement to output current of power converter is advantageously reduced, connecting line, motor connect between reduction power inverter and motor
The heating of line box and insulating requirements.Furthermore, it is possible to the ripe design of the polyphase machine of the conventional number of phases (such as three phase electric machine) of utilization,
Manufacture and control method, reduce cost, the difficulty and complexity of production.For big on the basis of the polyphase machine of the present embodiment
The electronic military equipment of power, even hundred MW class is greatly developed.
In summary, the motorized motions fault tolerance facility of the present embodiment has structure design simple, reasonable, and cost is low, heating
Measure small, stable work in work, response quickly, safe and reliable, the advantages of service life is long.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.
Claims (8)
1. a kind of motorized motions fault tolerance facility, is arranged in electrical equipment, for driving the electrical equipment, including：
Polyphase machine, the number of phases of its polyphase machine winding is k, with rated line voltage and specified line current；
Dc source, with the constant voltage corresponding with the rated line voltage of the polyphase machine, for offer and institute
State the corresponding line current of specified line current；
Sending part is instructed, the command signal corresponding with the rotating speed or the value of torque that the polyphase machine is exported is sent；
Current sensor, detection constitutes the line current value of the polyphase windings unit of the polyphase machine winding, and sends corresponding
Current feedback signal；
Output transducer, detects rotating speed or the torque of the polyphase machine output, and sends corresponding output feedback signal；
Controller, is calculated and output motor according to the command signal, the current feedback signal and the output feedback signal
Control signal, according to the current feedback signal and by predetermined control rule output operation control signal；
Driver, enters working condition or halted state, in the operating condition according to institute under the operation control signal effect
State operation control signal and produce drive signal；
Power inverter, the line electricity that the polyphase machine needs is converted in the presence of the drive signal by the direct current
Stream,
It is characterized in that：
Wherein, the polyphase machine winding has j+i separate and parameter identical polyphase windings units,
The power inverter has j+i connected one to one with the j+i polyphase windings unit separate and ginseng
Number identical power conversion unit,
There is each power conversion unit k power conversion circuit to provide k routes to the corresponding polyphase windings unit
Electric current,
The driver has j+i separate and parameter identical driver elements, respectively with j+i power conversion unit phase
Connection,
The k is the positive integer more than 2, and the j is the positive integer more than 1, and the i is redundant digit and is natural number.
2. motorized motions fault tolerance facility according to claim 1, it is characterised in that：
Wherein, when the continuous operating current virtual value of maximum that the single power conversion circuit of the power conversion unit is normally exported
For I1, the max line current effective value of the polyphase machine is INWhen, the number j of the polyphase windings unit meets following conditions：
J ＞ IN÷I1,
Wherein, j is the positive integer more than 1.
3. motorized motions fault tolerance facility according to claim 1, it is characterised in that：
Wherein, the dc source is battery or rectifier power source.
4. motorized motions fault tolerance facility according to claim 1, it is characterised in that：
Wherein, the polyphase machine is in asynchronous machine, synchronous motor, switched reluctance machines, brshless DC motor, stepper motor
Any one,
The polyphase machine winding and can be divided exactly around radical by the number j+i of the polyphase windings unit,
The winding number of phases of the polyphase machine winding and the polyphase windings unit, winding phase sequence, umber of turn, winding connection side
Formula is identical with rated voltage.
5. motorized motions fault tolerance facility according to claim 1, it is characterised in that：
Wherein, the power conversion unit be made up of SPM or comprising multiple types and parameter identical work(
Rate switching tube,
The power switch pipe is electric power field-effect transistor (Power MOSFET), gate level turn-off thyristor (GTO), integrated
Door pole stream-exchanging thyristor (IGCT), insulated gate bipolar transistor (IGBT), electric power bipolar transistor (GTR) and gate commutated
Any one in IGCT (SGCT).
6. a kind of power inverter with fault tolerance, with the number of phases it is k, with rated line voltage and specified line current and contains
There are j+i separate and parameter identical polyphase windings unit polyphase machines, and with constant voltage and for carrying
It is respectively connected with for the dc source corresponding with the specified line current, for the drive signal that is exported according to driver by institute
State dc source and be supplied to the polyphase machine, it is characterised in that including：
J+i power conversion unit, it is corresponding with the j+i polyphase windings unit difference,
Wherein, each power conversion unit has k separate and parameter identical power conversion circuits, so as to right
The polyphase windings unit answered provides k line currents,
The k is the positive integer more than 2, and the j is the positive integer more than 1, and the i is redundant digit and is natural number.
7. a kind of polyphase machine with fault tolerance, with rated line voltage and specified line current, with j+i mutually solely
Vertical and parameter identical power conversion unit is connected, and the power conversion unit will come from constant according to drive signal
The direct current of the dc source output of voltage is converted to the specified line current, it is characterised in that including：
At least one set of polyphase machine winding, its number of phases is k, with the j+i corresponding with the j+i power conversion unit difference
Individual separate and parameter identical polyphase windings unit,
Wherein, each polyphase windings unit receives k in each power conversion unit work(being connected in parallel to each other
The k line currents that rate translation circuit is provided,
The k is the positive integer more than 2, and the j is the positive integer more than 1, and the i is redundant digit and is natural number.
8. a kind of electrical equipment, it is characterised in that including：
Motorized motions fault tolerance facility according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788096A (en) * | 2017-02-21 | 2017-05-31 | 上海理工大学 | Motorized motions fault tolerance facility, power inverter, polyphase machine and electrical equipment |
| CN109552048A (en) * | 2017-09-26 | 2019-04-02 | 湖南中车时代电动汽车股份有限公司 | Automobile power drive system and fault-tolerance approach for automobile power drive system |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788096A (en) * | 2017-02-21 | 2017-05-31 | 上海理工大学 | Motorized motions fault tolerance facility, power inverter, polyphase machine and electrical equipment |
| CN109552048A (en) * | 2017-09-26 | 2019-04-02 | 湖南中车时代电动汽车股份有限公司 | Automobile power drive system and fault-tolerance approach for automobile power drive system |
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