CN105939136A - Speed regulation apparatus and speed regulation system for switched reluctance motor - Google Patents
Speed regulation apparatus and speed regulation system for switched reluctance motor Download PDFInfo
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Abstract
The invention discloses a speed regulation apparatus and a speed regulation system for a switched reluctance motor, and relates to the technical field of power electronics; a switched reluctance motor with relatively high voltage driving can be obtained in a simple way, so that the cost is lowered; the speed regulation apparatus for the switched reluctance motor comprises m inversion units which are connected in series, wherein m is an integer greater than or equal to 2; each inversion unit comprises n driving modules corresponding to n phases respectively; the n driving modules of each inversion unit are connected in parallel, wherein n is an integer greater than or equal to 1; the m driving modules corresponding to the i<th> phase in the m inversion units are connected with the windings on the m groups of stator salient poles corresponding to the i<th> phase respectively; each stator salient pole group comprises p stator salient poles; each stator salient pole group is provided with the same winding; independent windings are arranged on different stator salient pole groups separately; p is an integer greater than or equal to 1; and i is an integer from 1 to n.
Description
Technical field
The present invention relates to electric and electronic technical field, particularly relate to a kind of switched reluctance motor speed adjusting device and open
Close reluctance motor governing system.
Background technology
Switched reluctance machines is a kind of to utilize rotor magnetic resistance uneven and produce the motor that torque is operated.As
Shown in Fig. 1, switched reluctance machines includes rotor 1 and the motor of stator 2, such as three-phase, each corresponding two
Individual stator salient poles, wherein salient pole A1, A2 is the first phase salient pole, and salient pole B1, B2 are the second phase salient pole, convex
Pole C1, C2 are third phase salient pole, two salient poles of corresponding same phase have same winding (in Fig. 1 only
Illustrate a winding on the first phase salient pole), a1, a2 are the winding two ends on corresponding first phase salient pole, b1,
B2 is the winding two ends on corresponding second phase salient pole, and c1, c2 are the winding two ends on corresponding third phase salient pole.
As in figure 2 it is shown, switched reluctance machines is driven by switched reluctance motor speed adjusting device, switching magnetic-resistance electricity
Machine arrangements for speed regulation include that inversion unit 3, inversion unit 3 include that three drive module 31, each driving module
Two outfans of 31 are connected to the winding two ends on two salient poles of corresponding same phase, and three drive mould
Block is respectively three windings and provides driving electric current.
But, above-mentioned type of drive cannot meet the driving of bigger voltage, will meet the driving of bigger voltage,
Then need the circuit structure in switched reluctance motor speed adjusting device is carried out bigger change, such as, use midpoint
Clamped three-level, many level mode of speed regulation, not only needs to increase the device of additional functionality, and for switch
The control of pipe is also required to bigger logic change so that at switched reluctance machines in the driving realizing bigger voltage
Time complexity relatively big, relatively costly.
Summary of the invention
In view of this, the present invention provides a kind of switched reluctance motor speed adjusting device and switched reluctance machines speed governing system
System, it is possible to realize bigger voltage-driven switch reluctance motor by the simple mode of one, thus reduce into
This.
For reaching above-mentioned purpose, present invention generally provides following technical scheme:
On the one hand, it is provided that a kind of switched reluctance motor speed adjusting device, including:
M the inversion unit being serially connected, m is the integer more than or equal to 2；
Each described inversion unit includes n driving module of the most corresponding n phase, each described inversion unit
In n driving module parallel with one another, n is the integer more than or equal to 1；
M driving module of correspondence the i-th phase in described m inversion unit is for connecting corresponding i-th respectively
Winding in the m group stator salient poles of phase, often group stator salient poles includes p stator salient poles, often organizes stator salient poles
Having same winding, different group stator salient poles are respectively provided with independent winding, p is more than or equal to 1
Integer, i is the value integer from 1 to n.
Specifically, described switched reluctance motor speed adjusting device, also include:
M the filter capacitor the most in parallel with described m inversion unit.
Specifically, each described driving module includes one group of asymmetrical half-bridge, described one group of asymmetrical half-bridge bag
Including two half-bridges of parallel connection, each half-bridge includes switching tube and the fly-wheel diode being serially connected, each half
In bridge, switching tube and the outfan that junction is this half-bridge of fly-wheel diode, in each described driving module,
The outfan of two half-bridges is for connecting the two ends of same winding respectively.
Specifically, described switched reluctance motor speed adjusting device, also include:
The control unit of n the driving module being connected in each described inversion unit, described control unit is used
M the driving module synchronization work in correspondence the i-th phase controlled in described m inversion unit.
Specifically, described switched reluctance motor speed adjusting device, also include:
Rectification unit；
Described m cascaded inverters is between positive and negative busbar, and described positive and negative busbar is connected to described rectification list
Unit.
On the other hand, it is provided that a kind of Switched Reluctance Motor, including switched reluctance machines and switch magnetic
Resistance motor speed control device,
Described switched reluctance motor speed adjusting device includes m the inversion unit being serially connected, m for more than or etc.
In the integer of 2；
Each described inversion unit includes n driving module of the most corresponding n phase, each described inversion unit
In n driving module parallel with one another, n is the integer more than or equal to 1；
Described switched reluctance machines includes n × m group stator salient poles, and often group stator salient poles includes p stator salient poles,
Often group stator salient poles has same winding, and different group stator salient poles are respectively provided with independent winding, and p is big
In or equal to 1 integer；
M driving module of correspondence the i-th phase in described m inversion unit connects corresponding i-th phase respectively
Winding in m group stator salient poles, often group stator salient poles includes at least one stator salient poles, often organizes stator salient poles
Having same winding, different group stator salient poles are respectively provided with independent winding, i is that value is from 1 to n's
Integer.
Specifically, described switched reluctance motor speed adjusting device also includes: with described m inversion unit the most also
M filter capacitor of connection.
Specifically, each described driving module includes one group of asymmetrical half-bridge, described one group of asymmetrical half-bridge bag
Including two half-bridges of parallel connection, each half-bridge includes switching tube and the fly-wheel diode being serially connected, each half
In bridge, switching tube and the outfan that junction is this half-bridge of fly-wheel diode, in each described driving module,
The outfan of two half-bridges connects the two ends of same winding respectively.
Specifically, described switched reluctance motor speed adjusting device also includes: be connected in each described inversion unit
The control unit of n driving module, described control unit is right for control in described m inversion unit
Answer m driving module synchronization work of the i-th phase.
Specifically, described switched reluctance motor speed adjusting device also includes rectification unit；
Described m cascaded inverters is between positive and negative busbar, and described positive and negative busbar is connected to described rectification list
Unit.
The switched reluctance motor speed adjusting device of present invention offer and Switched Reluctance Motor, by opening
Close multiple inversion units in reluctance motor arrangements for speed regulation to connect, simultaneously by many in multiple inversion units
Individual driving module simultaneously drives the multiple windings in same phase stator salient poles, decreases each driving module needs
The stator salient poles number driven, although the driving force of single driving module does not change, but for each
For phase stator salient poles, bigger input voltage can be received, switched reluctance motor speed adjusting device simple in construction,
Need not increase the device of additional functionality, and control mode is similar, therefore with existing motor control mode
Achieve bigger voltage-driven switch reluctance motor by the simple mode of one, thus reduce cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of switched reluctance machines in prior art；
Fig. 2 is the schematic diagram of a kind of switched reluctance motor speed adjusting device in prior art；
Fig. 3 is the schematic diagram of a kind of switched reluctance motor speed adjusting device in the embodiment of the present invention；
Fig. 4 is the structural representation of a kind of switched reluctance machines in the embodiment of the present invention；
Fig. 5 is the schematic diagram of another kind of switched reluctance motor speed adjusting device in the embodiment of the present invention；
Fig. 6 is the structural representation of another kind of switched reluctance machines in the embodiment of the present invention.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
As it is shown on figure 3, embodiments provide a kind of switched reluctance motor speed adjusting device, including: phase
M the inversion unit 3 of series connection mutually, m is the integer more than or equal to 2；Each inversion unit 3 includes point
N driving module 31 of not corresponding n phase, n driving module 31 in each inversion unit 3 is parallel with one another,
N is the integer more than or equal to 1；As shown in Figure 3 and Figure 4, correspondence the i-th phase in m inversion unit 3
M driving module winding in the m group stator salient poles connecting corresponding i-th phase respectively, often organize stator
Salient pole includes p stator salient poles, and often group stator salient poles has same winding, and different group stator salient poles are divided
Not having independent winding, p is the integer more than or equal to 1, and i is the value integer from 1 to n.
Driving process below by way of a kind of concrete switched reluctance machines illustrates the switch magnetic in the present embodiment
Resistance motor speed control device, such as, m=2, n=3, p=1, m value specifically can be each relatively according to motor
The stator salient poles number answered determines, such as switched reluctance machines is three phase electric machine, determines for each corresponding two
Sub-salient pole, then m=2, so that multiple driving module 31 drives each corresponding stator salient poles, often group is fixed
Sub-salient pole includes a stator salient poles, and wherein stator salient poles A1, A2 are the first phase stator salient poles, salient stator
Pole B1, B2 are the second phase stator salient poles, and stator salient poles C1, C2 are third phase stator salient poles, a1, a1 '
For the winding two ends in stator salient poles A1, a2, a2 ' it is the winding two ends in stator salient poles A2, b1, b1 '
For the winding two ends in stator salient poles B1, b2, b2 ' it is the winding two ends in stator salient poles B2, c1, c1 '
For the winding two ends in stator salient poles C1, c2, c2 ' it is the winding two ends in stator salient poles C2.Above-mentioned switch
Operationally, 2 of the same phase of correspondence in 3 inversion units drive modules 31 to reluctance motor arrangements for speed regulation
Synchronous working, such as, connects the first phase stator salient poles A1, two of A2 driving modules 31 work asynchronously,
Two windings at ' and a2, a2 ' place that makes a1, a1 simultaneously turn on and end, so, for switching magnetic-resistance electricity
For machine, its work process does not change, and simply drives the same phase of module drive by existing by one
The mode of two corresponding stator salient poles has become driving module to drive same corresponding two respectively by one
The mode of individual stator salient poles, decreases the stator salient poles number that each driving module needs to drive, although single
The driving force driving module does not change, but for each phase stator salient poles, can receive bigger
Input voltage.
Switched reluctance motor speed adjusting device in the embodiment of the present invention, by multiple inversion units are connected,
Simultaneously by the multiple driving modules in multiple inversion units simultaneously drive in same phase stator salient poles multiple around
Group, decreases the stator salient poles number that each driving module needs to drive, although the driving of single driving module
Ability does not change, but for each phase stator salient poles, can receive bigger input voltage, open
Close reluctance motor arrangements for speed regulation simple in construction, it is not necessary to increase additional functionality device, and control mode with
Existing motor control mode is similar to, and therefore achieves bigger voltage-driven switch by the simple mode of one
Reluctance motor, thus reduce cost.
Specifically, above-mentioned switched reluctance motor speed adjusting device also includes: the most in parallel with m inversion unit 3
M filter capacitor C, filter capacitor C play filtering and for the effect of multiple inversion unit 3 dividing potential drops.
Specifically, each driving module 31 includes that one group of asymmetrical half-bridge, above-mentioned one group of asymmetrical half-bridge include
Two half-bridges in parallel, each half-bridge includes switching tube and the fly-wheel diode being serially connected, at each half-bridge
In, switching tube and the outfan that junction is this half-bridge of fly-wheel diode, in each driving module 31, two
The outfan of individual half-bridge is for connecting the two ends of same winding respectively.It will be appreciated that, drive module 31 to remove
Outside the implementation of asymmetrical half-bridge, it is also possible to for other implementation, as long as be capable of stator
The driving of winding on salient pole.
Specifically, above-mentioned switched reluctance motor speed adjusting device also includes: be connected to the n in each inversion unit 3
The control unit 4 of individual driving module 31, control unit 4 is for controlling correspondence in m inversion unit 3 the
M driving module 31 of i phase works asynchronously.Such as, when driving module 31 by the way of asymmetrical half-bridge
During reality, control unit 4 is connected to the control end of each driving module 31 breaker in middle pipe.
Specifically, above-mentioned switched reluctance motor speed adjusting device also includes: rectification unit 5；M inversion unit string
Being coupled between positive and negative busbar, this positive and negative busbar is connected to rectification unit 5, and rectification unit 5 is for input signal
Carry out rectification.
Driving process below by way of the concrete switched reluctance machines of another kind illustrates the switch in the present embodiment
Reluctance motor arrangements for speed regulation, such as, as shown in Figure 5 and Figure 6, m=2, n=3, p=2, m value is concrete
Can determine according to each corresponding stator salient poles number of motor, such as switched reluctance machines is three-phase electricity
Machine, each corresponding 4 stator salient poles, then can make m=2, so that multiple driving module 31 drives often
One corresponding stator salient poles, often group stator salient poles includes two stator salient poles, wherein, stator salient poles D1,
D2, D3, D4 are the first phase stator salient poles, D1 and D3 is one group and has same winding, D2 and
D4 is same group and has same winding, and stator salient poles E1, E2, E3, E4 are the second phase stator salient poles,
E1 and E3 is same group and has same winding, E2 and E4 is one group and has same winding, fixed
Sub-salient pole F1, F2, F3, F4 are third phase stator salient poles, F1 and F3 is one group and has same winding,
D1, d3 are the winding two ends on D1, D3, and d2, d4 are the winding two ends on D2, D4, and e1, e3 are
Winding two ends on E1, E3, e2, e4 are the winding two ends on E2, E4, and f1, f3 are on F1, F3
Winding two ends, f2, f4 are the winding two ends on F2, F4.This switched reluctance motor speed adjusting device operationally,
2 driving modules 31 of the same phase of correspondence in 3 inversion units work asynchronously, and such as, connect the first phase
Stator salient poles D1, two driving modules 31 of D2, D3, D4 work asynchronously, and make d1, d3 and d2, d4
Two windings at place simultaneously turn on and end, so, for switched reluctance machines, and its work process
Do not change, simply by existing by 4 stator salient poles driving the corresponding same phase of module drive
Mode become by the way of two drive modules to drive 4 stator salient poles of corresponding same phase, though
The driving force of right single driving module does not change, but for each phase stator salient poles, Ke Yijie
Receive bigger input voltage.
It should be noted that above-described embodiment is described, for list only for three-phase (i.e. n=3) motor
Phase motor or the motor of other numbers of phases, its type of drive and principle are same as the previously described embodiments, the most superfluous at this
State.It addition, for the electric machine structure of each corresponding 4 stator salient poles, above-described embodiment only describes often
Group stator salient poles includes the mode (i.e. p=2 and m=2) of two stator salient poles, includes for often organizing stator salient poles
The mode (i.e. p=1 and m=4) of one stator salient poles, its type of drive and principle are similar to the above embodiments,
Difference is that, as p=1, each stator salient poles has independent winding, is driven by each driving module
Dynamic each stator salient poles, compared with the mode of p=2, structure is more complicated, but drives switched reluctance machines
Voltage can be bigger, the value of p specifically can be come really according to number and the demand of stator salient poles in motor
Fixed.
Switched reluctance motor speed adjusting device in the embodiment of the present invention, by multiple inversion units are connected,
Simultaneously by the multiple driving modules in multiple inversion units simultaneously drive in same phase stator salient poles multiple around
Group, decreases the stator salient poles number that each driving module needs to drive, although the driving of single driving module
Ability does not change, but for each phase stator salient poles, can receive bigger input voltage, open
Close reluctance motor arrangements for speed regulation simple in construction, it is not necessary to increase additional functionality device, and control mode with
Existing motor control mode is similar to, and therefore achieves bigger voltage-driven switch by the simple mode of one
Reluctance motor, thus reduce cost.
The embodiment of the present invention provides a kind of Switched Reluctance Motor, including switch magnetic as shown in Figure 4
Resistance motor and as shown in Figure 3 switched reluctance motor speed adjusting device, as it is shown on figure 3, switched reluctance machines speed governing
Device includes m the inversion unit 3 being serially connected, and m is the integer more than or equal to 2；Each inversion list
Unit 3 includes n driving module 31 of the most corresponding n phase, n driving module in each inversion unit 3
31 is parallel with one another, and n is the integer more than or equal to 1；As shown in Figure 4, switched reluctance machines includes n × m
Group stator salient poles, often group stator salient poles includes p stator salient poles, and often group stator salient poles has same winding,
Being respectively provided with independent winding in different group stator salient poles, p is the integer more than or equal to 1；M inversion list
M driving module 31 of correspondence the i-th phase in unit 3 connects in the m group stator salient poles of corresponding i-th phase respectively
Winding, often group stator salient poles includes at least one stator salient poles, and often group stator salient poles has same winding,
Being respectively provided with independent winding in different group stator salient poles, i is the value integer from 1 to n.
The present embodiment breaker in middle reluctance motor and the concrete principle of switched reluctance motor speed adjusting device and work process
Same as the previously described embodiments, do not repeat them here.
Switched Reluctance Motor in the embodiment of the present invention, by by switched reluctance motor speed adjusting device
In multiple inversion units connect, simultaneously driven by the multiple driving modules in multiple inversion units simultaneously
Multiple windings in same phase stator salient poles, decrease the stator salient poles number that each driving module needs to drive,
Although the driving force of single driving module does not change, but for each phase stator salient poles, permissible
Receive bigger input voltage, switched reluctance motor speed adjusting device simple in construction, it is not necessary to increase additional functionality
Device, and control mode is similar with existing motor control mode, therefore by the simple mode of one
Achieve bigger voltage-driven switch reluctance motor, thus reduce cost.
Specifically, above-mentioned switched reluctance motor speed adjusting device also includes: with described m inversion unit the most also
M the filter capacitor C, filter capacitor C of connection plays filtering and the effect for multiple inversion unit 3 dividing potential drops.
Specifically, each driving module 31 includes that one group of asymmetrical half-bridge, one group of asymmetrical half-bridge include parallel connection
Two half-bridges, each half-bridge includes switching tube and the fly-wheel diode being serially connected, in each half-bridge,
Switching tube and the outfan that junction is this half-bridge of fly-wheel diode, in each driving module 31, two and half
The outfan of bridge connects the two ends of same winding respectively.It will be appreciated that, drive module 31 except asymmetric
Outside the implementation of half-bridge, it is also possible to for other implementation, if be capable of in stator salient poles around
The driving of group.
Specifically, above-mentioned switched reluctance motor speed adjusting device also includes: be connected to each described inversion unit 3
In the control unit 4 of n driving module 31, control unit 4 is for controlling in m inversion unit 3
M driving module 31 of corresponding i-th phase works asynchronously.Such as, when driving module 31 by asymmetric half
During the mode reality of bridge, control unit 4 is connected to the control end of each driving module 31 breaker in middle pipe.
Specifically, above-mentioned switched reluctance motor speed adjusting device also includes rectification unit 5；M cascaded inverters
Between positive and negative busbar, this positive and negative busbar is connected to rectification unit 5, and rectification unit 5 is for entering input signal
Row rectification.
The present embodiment breaker in middle reluctance motor and the concrete principle of switched reluctance motor speed adjusting device and work process
Same as the previously described embodiments, do not repeat them here.
Switched Reluctance Motor in the embodiment of the present invention, by by switched reluctance motor speed adjusting device
In multiple inversion units connect, simultaneously driven by the multiple driving modules in multiple inversion units simultaneously
Multiple windings in same phase stator salient poles, decrease the stator salient poles number that each driving module needs to drive,
Although the driving force of single driving module does not change, but for each phase stator salient poles, permissible
Receive bigger input voltage, switched reluctance motor speed adjusting device simple in construction, it is not necessary to increase additional functionality
Device, and control mode is similar with existing motor control mode, therefore by the simple mode of one
Achieve bigger voltage-driven switch reluctance motor, thus reduce cost.
The above, be only presently preferred embodiments of the present invention, not makees the present invention any pro forma
Limit, any simple modification of above example being made according to the technical spirit of the present invention, equivalent variations with
Modify, all still fall within the range of technical solution of the present invention.
Claims (10)
1. a switched reluctance motor speed adjusting device, it is characterised in that including:
M the inversion unit being serially connected, m is the integer more than or equal to 2；
Each described inversion unit includes n driving module of the most corresponding n phase, each described inversion unit
In n driving module parallel with one another, n is the integer more than or equal to 1；
M driving module of correspondence the i-th phase in described m inversion unit is for connecting corresponding i-th respectively
Winding in the m group stator salient poles of phase, often group stator salient poles includes p stator salient poles, often organizes stator salient poles
Having same winding, different group stator salient poles are respectively provided with independent winding, p is more than or equal to 1
Integer, i is the value integer from 1 to n.
Switched reluctance motor speed adjusting device the most according to claim 1, it is characterised in that also include:
M the filter capacitor the most in parallel with described m inversion unit.
Switched reluctance motor speed adjusting device the most according to claim 2, it is characterised in that
Each described driving module includes that one group of asymmetrical half-bridge, described one group of asymmetrical half-bridge include parallel connection
Two half-bridges, each half-bridge includes switching tube and the fly-wheel diode being serially connected, in each half-bridge, opens
Close the outfan that junction is this half-bridge of pipe and fly-wheel diode, in each described driving module, two and half
The outfan of bridge is for connecting the two ends of same winding respectively.
Switched reluctance motor speed adjusting device the most as claimed in any of claims 1 to 3, its feature
It is, also includes:
The control unit of n the driving module being connected in each described inversion unit, described control unit is used
M the driving module synchronization work in correspondence the i-th phase controlled in described m inversion unit.
Switched reluctance motor speed adjusting device the most according to claim 4, it is characterised in that also include:
Rectification unit；
Described m cascaded inverters is between positive and negative busbar, and described positive and negative busbar is connected to described rectification list
Unit.
6. a Switched Reluctance Motor, fills including switched reluctance machines and switched reluctance machines speed governing
Put, it is characterised in that
Described switched reluctance motor speed adjusting device includes m the inversion unit being serially connected, m for more than or etc.
In the integer of 2；
Each described inversion unit includes n driving module of the most corresponding n phase, each described inversion unit
In n driving module parallel with one another, n is the integer more than or equal to 1；
Described switched reluctance machines includes n × m group stator salient poles, and often group stator salient poles includes p salient stator
Pole, often group stator salient poles has same winding, and different group stator salient poles are respectively provided with independent winding, p
For the integer more than or equal to 1；
M driving module of correspondence the i-th phase in described m inversion unit connects corresponding i-th phase respectively
Winding in m group stator salient poles, often group stator salient poles includes at least one stator salient poles, often organizes stator salient poles
Having same winding, different group stator salient poles are respectively provided with independent winding, i is that value is from 1 to n's
Integer.
Switched Reluctance Motor the most according to claim 6, it is characterised in that
Described switched reluctance motor speed adjusting device also includes: m the most in parallel with described m inversion unit
Filter capacitor.
Switched Reluctance Motor the most according to claim 7, it is characterised in that
Each described driving module includes that one group of asymmetrical half-bridge, described one group of asymmetrical half-bridge include parallel connection
Two half-bridges, each half-bridge includes switching tube and the fly-wheel diode being serially connected, in each half-bridge, opens
Close the outfan that junction is this half-bridge of pipe and fly-wheel diode, in each described driving module, two and half
The outfan of bridge connects the two ends of same winding respectively.
9. according to the Switched Reluctance Motor described in any one in claim 6 to 8, its feature
It is,
Described switched reluctance motor speed adjusting device also includes: is connected to the n in each described inversion unit and drives
The control unit of dynamic model block, described control unit is for controlling correspondence the i-th phase in described m inversion unit
M driving module synchronization work.
Switched Reluctance Motor the most according to claim 9, it is characterised in that
Described switched reluctance motor speed adjusting device also includes rectification unit；
Described m cascaded inverters is between positive and negative busbar, and described positive and negative busbar is connected to described rectification list
Unit.
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| CN201510096757 | 2015-03-04 | ||
| CN201510096757X | 2015-03-04 |
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