CN206629008U - Vidacare corp, electric drive system and electrical equipment - Google Patents
Vidacare corp, electric drive system and electrical equipment Download PDFInfo
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- CN206629008U CN206629008U CN201720333087.3U CN201720333087U CN206629008U CN 206629008 U CN206629008 U CN 206629008U CN 201720333087 U CN201720333087 U CN 201720333087U CN 206629008 U CN206629008 U CN 206629008U
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Abstract
The utility model provides a kind of Vidacare corp, electric drive system and electrical equipment having into standard structure.Motor-driven control device provided by the utility model, is arranged in electrical equipment, for driving the polyphase machine in electrical equipment, including：Dc source；Instruct sending part；Current sensor；Output transducer；Controller；Driver；Power inverter, wherein, power inverter has (i+j) individual separate and parameter identical power conversion unit, controller includes the control unit of at least two independent output motor control signals, driver has (i+j) individual separate and parameter identical driver element, and i driver element receives the motor control signal of a control unit output, and j driver element receives the motor control signal of other control unit outputs, j is positive integer more than 1, i 1.
Description
Technical field
The utility model belongs to machine field, more particularly to a kind of Vidacare corp, includes the Vidacare corp
Electric drive system and electrical equipment.
Background technology
China as manufacturing powerhouse, with the development of economy and society, resource environment, human cost etc. it is many-sided by
Restriction can be more and more, China's manufacturing industry be faced with industrial transformation, upgrading severe challenge.Realize manufacturing liter
Level, is necessarily required to develop advanced high-end equipment manufacture.Compared with international advanced technology level, China in this field still
In the presence of certain gap.High-performance Vidacare corp is studied, is advantageous to support and promotes the progress in this field of China.
In high-performance Vidacare corp, in order to obtain faster dynamic response, more preferable steady-state behaviour, increase electric current
Negative feedback control, i.e., while rotating speed or torque is controlled the line current for flowing through machine winding is controlled.Digital control
In system, because power inverter, driver, controller and sensor etc. are not continuous simulation system, exist dead band, when
Stagnant, uncertain, disturbance and the series of influence factors such as non-linear, the change that result in line current is not continuous, electricity be present
Flow minimum change.And the minimum change of current of electric further have impact on the quality of steady-state behaviour.
In three-phase electric drive device as shown in Figure 2, the line current of motor is provided by power inverter, power
Upper and lower bridge arm in converter per phase is all composed in parallel by multiple power switch pipes, and each power switch pipe has output
Electric current minimum change, so the minimum change of the line current of motor is the output current minimum of multiple parallel power switching tubes
The summation of variable quantity.
In Vidacare corp, power is bigger, and current resolution is also bigger.This problem has had a strong impact on powerful
Electrical equipment, such as the performance of express elevator, Digit Control Machine Tool, electric drive train, electric automobile and Electric aircraft.
Utility model content
The utility model is, and it is an object of the present invention to provide a kind of have into standard structure in order to solving the above problems and carry out
Vidacare corp, electric drive system and electrical equipment.
<Structure one>
The utility model provides a kind of motor-driven control device, is arranged in electrical equipment, for driving electronic set
Standby interior polyphase machine, polyphase machine have (i+j) individual separate and parameter identical polyphase windings unit, including：Direct current
Power supply, there is the constant voltage corresponding with the rated line voltage of polyphase machine, for providing and the specified line of polyphase machine electricity
Flow corresponding line current；Sending part is instructed, the instruction corresponding with the value of the rotating speed of polyphase machine output or torque is sent and believes
Number；Current sensor, detect the line current value of polyphase windings unit, and current feedback signal corresponding to transmission；Output transducer,
Detect rotating speed or the torque of polyphase machine output, and output feedback signal corresponding to transmission；Controller, according to command signal, electricity
Stream feedback signal and output feedback signal calculate and export operation control signal and motor control signal；Driver, running
Control signal effect is lower to enter working condition or halted state, produces driving letter according to motor control signal in the operating condition
Number；And power inverter, in the presence of drive signal by direct current be converted to polyphase machine needs line current, its feature
It is：Wherein, power inverter have (i+j) to connect one to one with (i+j) individual polyphase windings unit it is individual independently of each other and
Parameter identical power conversion unit, controller include the control unit of at least two independent output motor control signals, driving
Utensil has (i+j) individual separate and parameter identical driver element, is connected respectively with (i+j) individual power conversion unit, i
Driver element receives the motor control signal of a control unit output, and j driver element receives other control unit outputs
Motor control signal, j is positive integer more than 1, i 1.
In Vidacare corp provided by the utility model, it can also have the feature that：Wherein, power conversion is worked as
The continuous operating current virtual value of maximum that the single power conversion circuit of unit normally exports is I1, the max line electricity of polyphase machine
Stream virtual value is INWhen, the number j of polyphase windings unit meets following conditions：
(i+j) ＞ IN÷I1,
Wherein, j is positive integer more than 1, i 1.
In Vidacare corp provided by the utility model, it can also have the feature that：Wherein, polyphase machine is
Any one in asynchronous machine, synchronous motor, switched reluctance machines, brshless DC motor, polyphase machine winding and around root
Number can be divided exactly by the number (i+j) of polyphase windings unit, the winding number of phases, the winding phase of polyphase machine winding and polyphase windings unit
Sequence, umber of turn, winding connection and rated voltage are identical.
In Vidacare corp provided by the utility model, it can also have the feature that：Wherein, dc source is
Battery pack or rectifier power source.
In Vidacare corp provided by the utility model, it can also have the feature that：Wherein, power conversion list
Member is made up of at least one SPM or opened comprising multiple types and parameter identical power switch pipe, power
Pipe is closed as electric power field-effect transistor, gate level turn-off thyristor, integrated gate commutated thyristor, insulated gate bipolar crystal
Any one in pipe, electric power bipolar transistor and door pole stream-exchanging thyristor.
<Structure two>
Further, the utility model additionally provides a kind of electric drive system, is arranged in electrical equipment, for driving electricity
Dynamic equipment, it is characterised in that including：Polyphase machine, there is rated line voltage and specified line current, have (i+j) individual mutually solely
Vertical and parameter identical polyphase windings unit；And motor-driven control device, for driving polyphase machine, wherein, electronic drive
Dynamic control device is<Structure one>In motor-driven control device, j is positive integer more than 1, i 1.
<Structure three>
Further, the utility model additionally provides a kind of electrical equipment containing above-mentioned electric drive system.
The effect of utility model and effect
Vidacare corp, electric drive system and electrical equipment according to involved by the utility model, polyphase machine
Winding has (i+j) individual polyphase windings unit, and power inverter has (i+j) individual power conversion unit, and controller includes at least
The control unit of two independent output motor control signals, driver have (i+j) individual driver element, respectively with (i+j) individual work(
Rate converter unit is connected, and i driver element receives the motor control signal of a control unit output, and j driver element connects
Receive the motor control signal of other control units output, i.e., i driver element, the i of a control unit and corresponding connection it is individual
Power conversion unit and i polyphase windings unit form first adjustment unit, and other control units and the j of corresponding connection are individual
Driver element, j power conversion unit and j polyphase windings unit composition second adjustment unit, so, when control unit control
When the line current of power conversion unit output processed changes, electric current minimum change was reduced to originally the only electricity of a control unit
The one of (i+j) of dynamic drive device point, the minimum current of output is quickly reduced, improve the precision of Vidacare corp and steady
State property energy.
To sum up, Vidacare corp of the present utility model, electric drive system and electrical equipment have structure design simple
Singly, rationally, the advantages that high resolution, superior performance.
Brief description of the drawings
Fig. 1 is the electrical block diagram of electric drive system in embodiment of the present utility model；And
Fig. 2 is the electrical block diagram of polyphase machine common in the art and power inverter.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, with
Lower combination accompanying drawing illustrates specific embodiment of the present utility model.
Electric drive system 10 be arranged on electrical equipment for example express elevator, Digit Control Machine Tool, electric drive train, electric automobile and
In Electric aircraft, for driving electrical equipment.
Fig. 1 is the electrical block diagram of the electric drive system in the present embodiment.
As shown in figure 1, electric drive system 10 includes polyphase machine 11 and Vidacare corp.
The number of phases of polyphase machine 11 is k, has rated line voltage and specified line current.Polyphase machine 11 is asynchronous electricity
Any one of machine, synchronous motor, switched reluctance machines, brshless DC motor.In the present embodiment, polyphase machine 11 is asynchronous
Motor, and polyphase machine 11 is into standard motor.
Polyphase machine 11 has an armature and the polyphase machine winding on armature.In the present embodiment, it is more
The group number of phase machine winding is identical with the number of armature, when armature number is two and the above, using the more of two groups and the above
Phase machine winding.Every group of polyphase machine winding includes (i+j) individual separate and parameter identical polyphase windings unit 111, (i+
J) number can by the winding of polyphase machine 11 and carry out average fractionation around radical, j number is more than or equal to 2, i number
Equal to 1.Before and after fractionation, the winding number of phases of polyphase machine winding and (i+j) individual polyphase windings unit, winding phase sequence, umber of turn,
Winding connection and rated voltage keep constant.
In the present embodiment, k tri-, i.e. polyphase machine 11 are three phase electric machine, and correspondingly, polyphase windings unit 111 is three
Phase winding unit, each three-phase windings unit have three independent winding A, B, C.
Vidacare corp is into standard drive device, including dc source 12, instruction sending part 13, current sensor
14th, output transducer 15, controller 16, driver 19 and power inverter 20.
Dc source 12 has the constant voltage corresponding with the rated line voltage of polyphase machine 11, and dc source 12 is electricity
Pond group or rectifier power source, battery pack include at least one series battery or connection in series-parallel battery pack.In the present embodiment, direct current
Source 12 includes a connection in series-parallel battery pack using battery pack, the battery pack.
Sending part 13 is instructed to send the command signal corresponding with the value of the rotating speed of the output of polyphase machine 11 or torque.
Current sensor 14 detects the line current of power conversion unit output and exports corresponding current feedback signal.Electricity
Stream 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 passes according to the command signal of instruction sending part 13, the current feedback signal of current sensor 14, output
The output feedback signal of sensor 15 and the battery feedback signal of controller 16 calculate the operation control signal 17 of output driving unit
With motor control signal 18.
Driver 19 enters working condition in the case where operation control signal 17 controls, and driver 19 produces driving power conversion electricity
The drive signal of road work.Driver 19 produces the drive signal of control power inverter 20 according to motor control signal 18.
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 include the i power conversion unit 201 corresponding with (i+j) individual polyphase windings unit 111 respectively and
J power conversion unit 202.
Driver 19 has 1 independent driver element 191 and j a separate and parameter identical driver element 192,
The motor control signal 181 that 191 reception control units 161 of driver element are sent, each driver element 192 receive control simultaneously
The identical signal that unit 162 processed is sent, 1 driver element 191 are connected with 1 power conversion unit 201, j driver element
192 are connected with j power conversion unit 202 respectively.Driver element 192 according to operation control signal 17 enter working condition or
It is off state.Each driver element 191 and 192 can send A phases drive signal, B phases drive signal and C phases and drive letter
Number, the three-phase driving signal drives in A phases power conversion circuit, B phases power conversion circuit and C phase power conversion circuits respectively
Power switch pipe, turn it on or close.
There are each power conversion unit 201 and 202 three to be connected in parallel to each other, structure and parameter identical A phases
Power conversion circuit, B phases power conversion circuit and C phase power conversion circuits.A phase power conversion circuits are connected to winding element
The tie point of middle A phase windings and C phase windings, B phase power conversion circuits are connected to B phase windings and A phase windings in winding element
Tie point, power conversion circuit are connected to the tie point of C phase windings and B phase windings in winding element, respectively to corresponding multiphase
Winding element provides line current.
Each power conversion circuit contains two power switch pipes.Two power switch pipes have the maximum continuous work of identical
Make electric current.Operating current is necessarily less than maximum continuous operating current, and power switch pipe is possible to run steadily in the long term, if work
Make electric current and exceed this current value, power switch pipe will the breakdown damage due to excessively stream.
In the present embodiment, power conversion unit 201 and 202 can be made up of SPM, can also be used more
Individual type and parameter identical power switch pipe combines.
Power switch pipe is electric power field-effect transistor (Power MOSFET), gate level turn-off thyristor (GTO), integrated
(GTR) and gate pole change 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, (i+j) individual separate driver element 192 respectively with (i+j) it is individual independently of each other and parameter
Identical power conversion unit 202 is connected and supplied to (i+j) individual separate and parameter identical polyphase windings unit 111
Electricity.
The number of polyphase windings unit in the present embodiment is i+j, and j is integer, i 1, and meets following condition：(i+j)
＞ IN÷I1, I in the formula1It is that the continuous operating current of maximum that normally exports of single power conversion circuit of power conversion unit has
Valid value, INIt is the max line current effective value of polyphase machine.
In the present embodiment, 1 driver element 191 and 1 power conversion unit 201 of control unit 161 and corresponding connection
First adjustment unit 211 is formed, another control unit 162 becomes with the j driver element 192 of corresponding connection and j power
Change unit 202 and form second adjustment unit 212.First adjustment unit 211 and second adjustment unit 212 together constitute
Vidacare corp enters standard structure.
Control unit 161 and 162 can independently output motor control signal 181 and 182, therefore, power conversion unit
The minimum current variable quantity of the line current of 201 and 202 outputs is different, and exported corresponding to power conversion unit 201
Minimum current variable quantity corresponds to j/mono- of the minimum current variable quantity of the output of power conversion unit 202.
When the part for being less than j times of electric current minimum change in variable quantity needed for the line current of motor, control unit 161 generates
Motor control signal 181；It is equal to the integral multiple part of j times of electric current minimum change, control in variable quantity needed for motor line current
Unit 162 generates motor control signal 182.Compared with the Vidacare corp of only one control unit, the utility model
The line current resolution ratio of middle polyphase machine is reduced to one that original (1+j) divides.
The effect of embodiment and effect
Vidacare corp, electric drive system and electrical equipment according to involved by the present embodiment, polyphase machine around
Group has (i+j) individual polyphase windings unit, and power inverter has (i+j) individual power conversion unit, and controller includes at least two
The control unit of individual independent output motor control signal, driver have (i+j) individual driver element, respectively with (i+j) individual power
Converter unit is connected, and i driver element receives the motor control signal of a control unit output, and j driver element receives
The motor control signal of other control units output, i.e., i driver element, i work(of the control unit with corresponding connection
Rate converter unit and i polyphase windings unit form first adjustment unit, and j of other control units and corresponding connection drives
Moving cell, j power conversion unit and j polyphase windings unit composition second adjustment unit, so, when control unit controls
When the line current of power conversion unit output changes, electric current minimum change was reduced to the electronic of original only control unit
The one of (i+j) of drive device points, the minimum current of output is quickly reduced, improve the precision and stable state of Vidacare corp
Performance.
To sum up, the Vidacare corp of the present embodiment, electric drive system and electrical equipment have structure design it is simple,
Rationally, the advantages that high resolution, superior performance.
Above-mentioned embodiment is preferred case of the present utility model, is not intended to limit the scope of protection of the utility model.
Claims (7)
1. a kind of motor-driven control device, is arranged in electrical equipment, for driving the polyphase machine in the electrical equipment,
The polyphase machine has (i+j) individual separate and parameter identical polyphase windings unit, including：
Dc source, there is the constant voltage corresponding with the rated line voltage of the polyphase machine, for provide with it is described more
The corresponding line current of the specified line current of phase motor；
Sending part is instructed, sends the command signal corresponding with the value of the rotating speed of polyphase machine output or torque；
Current sensor, detect the line current value of the polyphase windings unit, and current feedback signal corresponding to transmission；
Output transducer, detect rotating speed or the torque of the polyphase machine output, and output feedback signal corresponding to transmission；
Controller, calculated according to the command signal, the current feedback signal and the output feedback signal and export operation
Control signal and motor control signal；
Driver, enter working condition or halted state under the operation control signal effect, in the operating condition according to institute
State motor control signal and produce drive signal；And
Power inverter, the direct current is converted to the line electricity of the polyphase machine needs in the presence of the drive signal
Stream,
It is characterized in that：
Wherein, the power inverter has (i+j) to be connected one to one with (i+j) individual polyphase windings unit individual mutually
Independence and parameter identical power conversion unit,
The controller includes at least two independent control units for exporting the motor control signal,
The driver have (i+j) it is individual independently of each other and parameter identical driver element, respectively with (i+j) individual power conversion list
Member is connected,
The i driver elements receive the motor control signal of a described control unit output, the j driver elements
The motor control signal of other described control unit outputs is received,
The j is the positive integer more than 1, and the i is 1.
2. motor-driven control device 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 normally exports
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：
(i+j) ＞ IN÷I1,
Wherein, j is the positive integer more than 1, and the i is 1.
3. motor-driven control device according to claim 1, it is characterised in that：
Wherein, the polyphase machine is any one in asynchronous machine, synchronous motor, switched reluctance machines, brshless DC motor
Kind,
The polyphase machine winding and can be divided exactly around radical by the number (i+j) 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.
4. motor-driven control device according to claim 1, it is characterised in that：
Wherein, the dc source is battery pack or rectifier power source.
5. motor-driven control device according to claim 1, it is characterised in that：
Wherein, the power conversion unit be made up of at least one SPM or comprising multiple types and parameter
Identical power switch pipe,
The power switch pipe is electric power field-effect transistor, gate level turn-off thyristor, integrated gate commutated thyristor, insulation
Any one in grid bipolar transistor, electric power bipolar transistor and door pole stream-exchanging thyristor.
6. a kind of electric drive system, is arranged in electrical equipment, for driving the electrical equipment, it is characterised in that including：
Polyphase machine, there is rated line voltage and specified line current, have (i+j) it is individual independently of each other and parameter identical multiphase around
Group unit；And
Motor-driven control device, for driving the polyphase machine,
Wherein, the motor-driven control device is motor-driven control device according to any one of claims 1 to 5,
The j is the positive integer more than 1, and the i is 1.
A kind of 7. electrical equipment, it is characterised in that including：
Electric drive system described in claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333087.3U CN206629008U (en) | 2017-03-31 | 2017-03-31 | Vidacare corp, electric drive system and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333087.3U CN206629008U (en) | 2017-03-31 | 2017-03-31 | Vidacare corp, electric drive system and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206629008U true CN206629008U (en) | 2017-11-10 |
Family
ID=60207778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720333087.3U Active CN206629008U (en) | 2017-03-31 | 2017-03-31 | Vidacare corp, electric drive system and electrical equipment |
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| Country | Link |
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| CN (1) | CN206629008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849824A (en) * | 2017-03-31 | 2017-06-13 | 上海理工大学 | Vidacare corp, electric drive system and electrical equipment |
-
2017
- 2017-03-31 CN CN201720333087.3U patent/CN206629008U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849824A (en) * | 2017-03-31 | 2017-06-13 | 上海理工大学 | Vidacare corp, electric drive system and electrical equipment |
| CN106849824B (en) * | 2017-03-31 | 2023-08-25 | 上海理工大学 | Electric drive device, electric drive system, and electric apparatus |
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