CN109546906A - A kind of novel direct current series-excited motor control system and method - Google Patents
A kind of novel direct current series-excited motor control system and method Download PDFInfo
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- CN109546906A CN109546906A CN201811618117.0A CN201811618117A CN109546906A CN 109546906 A CN109546906 A CN 109546906A CN 201811618117 A CN201811618117 A CN 201811618117A CN 109546906 A CN109546906 A CN 109546906A
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- 238000000034 method Methods 0.000 claims abstract description 12
- 238000009499 grossing Methods 0.000 claims description 18
- 230000005284 excitation Effects 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 7
- 230000009897 systematic effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/298—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature and field supplies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
- H02K23/08—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having series connection of excitation windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
- H02P7/04—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors by means of a H-bridge circuit
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention provides a kind of novel direct current series-excited motor control systems and method, including DC power supply UDC, comprising: is connected in series in the first branch and second branch of DC power supply UDC；The first branch includes the third branch and the 4th branch being connected in parallel；The third branch includes the first IGBT module and the second IGBT module being connected in series；4th branch includes the third IGBT module and the 4th IGBT module being connected in series, the novel direct current series-excited motor control method, pass through power electronic devices, realize the contactless smooth commutation of direct current series-excited motor, commutation is integrated with motor modulation, the cost and heat power consumption of reduction system improve system effectiveness.
Description
Technical field
The present invention relates to Motor Control Fields, more particularly to a kind of novel direct current series-excited motor control system and method.
Background technique
Direct current series-excited motor has many advantages, such as that detent torque is big, overload capacity is strong, revolving speed is high, small in size, light-weight, thus
It is widely used in various tools.But since direct current series-excited motor has brush and commutator, there are ring fire, effect in high-speed cruising
The disadvantages of rate is low, protective capacities is poor, energy feedback low efficiency, is very restricted the use of direct current generator.Especially exist
In high-power system, the commutation control of motor often uses large current convertor switch or contactor to realize, in motor high speed operation
Region also needs to take field weakening resistance and contactor to control, torque when improving motor high speed, using electricity when motor braking
Dynamic braking is hindered, will cause very big loss of power.
Summary of the invention
It is an object of the invention in view of the above shortcomings of the prior art, provide a kind of novel direct current series-excited motor control
System and method processed, can not only contactless commutation, moreover it is possible to no matter motor be have under damped condition forward or reverse it is very high
Energy feedback, while directly controlling motor energization current without additional equipment when motor runs at high speed, make its work weak
Magnetic state guarantees torque when motor high speed operation.
To achieve the above object, present invention employs following technical solution control methods:
The present invention provides a kind of novel direct current series-excited motor control systems, including DC power supply UDC, comprising:
It is connected in series in the first branch and second branch of DC power supply UDC；
The first branch includes the third branch and the 4th branch being connected in parallel；
The third branch includes the first IGBT module and the second IGBT module being connected in series；
4th branch includes the third IGBT module and the 4th IGBT module being connected in series；
One end of smoothing reactor L1, the third are connected between first IGBT module and second IGBT module
The other end of smoothing reactor L1 is connected between IGBT module and the 4th IGBT module；
Direct current generator M is in series on one end in the both ends of the smoothing reactor L1.
Further, the second branch includes the 5th branch and the 6th branch being connected in parallel；
5th branch, the 5th IGBT module and the 7th diode D7 including series connection；
6th branch, the 8th diode D8 and the 6th IGBT module including series connection；
One end of connection magnetizing inductance Lf between 5th IGBT module and the 7th diode D7, the described 8th 2
The other end of magnetizing inductance Lf is connected between pole pipe D8 and the 6th IGBT module.
Further, the direct current generator M is transferred to the first system adjuster for revolving speed is fed back, and the direct current generator M will be anti-
Feedforward torque is transferred to second system adjuster, and the first system adjuster and the second system adjuster are connected separately with
One linear controller and the second linear controller.
Further, the direct current generator M receives given rotating speed and the feedback revolving speed simultaneously, and by the given rotating speed and
The error of the feedback revolving speed turns by obtaining torque reference, the torque reference and the feedback after the first linear controller
The difference of square is by obtaining the first PWM and the 2nd PWM with triangle wave after the second linear controller.
Further, the exciting current feedback of the second branch gives the 4th systematic regulator, the exciting current and armature
The difference of electric current obtains the 3rd PWM after third linear controller with triangle wave.
Further, first IGBT module includes the first switch T1 and first diode D1 being connected in parallel；Described
Two IGBT modules include the second switch T2 being connected in parallel and the second diode D2；The third IGBT module includes being connected in parallel
Third switch T3 and third diode D2；4th IGBT module includes the 4th switch T4 being connected in parallel and the four or two pole
Pipe D4；
First PWM controls first switch T1 and the 4th switch T4；
2nd PWM controls second switch T2 and third switch T3.
Further, the 5th IGBT module includes the 5th switch T5 and the 5th diode D5 being connected in parallel；Described
Six IGBT modules include the 6th switch T6 and the 6th diode D6 being connected in parallel；
3rd PWM controls the 5th switch T5 and the 6th switch T6.
The present invention also provides a kind of novel direct current series-excited motor control methods, comprising the following steps:
When the positive M of direct current generator is rotated forward；
When first switch T1 and the 4th switch T4 are opened, UABBoth end voltage be supply voltage UDC, power supply is to direct current generator
M provides energy, and armature supply flows through first switch T1, smoothing reactor L1, direct current generator M from positive pole, then from the
Four switch T4 return to power cathode；After direct current generator M is rotated forward, when second switch T2 and third switch T3 is opened, UAB
Both end voltage and supply voltage UDC on the contrary, armature supply flows into electricity from smoothing reactor L1, direct current generator M, third switch T3
The anode in source is formed into a loop using second switch T2；
When the 5th switch T5 and the 6th switch T6 are opened, exciting current from positive pole, flow through the 5th switch T5,
Excitation winding Lf, then power cathode is returned to from the 6th switch T6；Exciting current is formed, at this time exciting current and armature supply one
It causes, direct current generator M is rotated forward；
When the 5th switch T5 and the 6th switch T6 is turned off, exciting current passes through the 7th diode D7 and the 8th diode D8
Afterflow flows into from the anode of power supply, flows out from the cathode of power supply, energy is fed back to power supply.
Further, further comprising the steps of:
When direct current generator M reversion:
When second switch T2 and third switch T3 are opened, UBABoth end voltage be power supply UDC, power supply gives direct current generator M
Energy is provided, armature supply flows through third switch T3, smoothing reactor L1, direct current generator M from positive pole, then from the
Two switch T2 return to power cathode；
After motor M is rotated backward, when first switch T1 and the 4th switch T4 is opened, UBABoth end voltage and power supply electricity
Press UDCOn the contrary, armature supply flows into the anode of power supply from smoothing reactor L1, direct current generator M, first switch T1, using the 4th
Switch T4 forming circuit；
When the 5th switch T5 and the 6th switch T6 are opened, exciting current from positive pole, flow through the 5th switch T5,
Excitation winding Lf, then power cathode is returned to from the 6th switch T6, form excitation exciting current, direct current generator M reversion；
When the 5th switch T5 and the 6th switch T6 is turned off, exciting current passes through the 7th diode D7 and the 8th diode D8
Afterflow flows into from the anode of power supply, flows out from the cathode of power supply, energy is fed back to power supply.
The invention has the benefit that the novel direct current series-excited motor control method is realized by power electronic devices
Smooth commutation that direct current series-excited motor is contactless and the control of high speed weak magnetic, commutation is modulated with motor and is integrated, the cost of system is reduced
And heat power consumption, improve system effectiveness；
1) 6 IGBT modules and two diodes are used on main topological structure, wherein four IGBT modules constitute H bridge,
The size and Orientation that armature supply can flexibly be controlled realizes the speed regulation and positive and negative rotation of direct current generator, other two IGBT and two
A diode constitutes the double half-bridge circuits of a complementation, for controlling the size of excitation winding electric current but not changing the side of exciting current
To.Compared with traditional structure, which, which not only can control exciting current, can also control armature supply, with bigger flexible
Property；
2) regardless of under the operating condition for rotating forward or inverting, the armature winding and excitation winding of direct current generator can all be returned to power supply
Energy regenerative amount, only direct current generator to the energy of power supply feedback is less than the energy that power supply exports at this time, and when motor braking, only needs
Zero is set by given speed, and direct current generator is more than the energy of power supply output to the energy of power supply feedback at this time, greatly
Save energy.
3) it needs to carry out weak magnetic control when motor works in high speed, the exciting current for directly controlling motor can be succinct
Conveniently realize the control of motor weak magnetic.
Detailed description of the invention
Fig. 1 is a kind of main circuit topological structure schematic diagram of novel direct current series-excited motor control of the present invention；
Fig. 2 is the control block diagram of bipolarity bridge-type reversible transducer；
Fig. 3 is complementary double half-bridge circuit control block diagrams；
Fig. 4 is the circuit block diagram of embodiment one；
Fig. 5 is the circuit block diagram of embodiment one；
Fig. 6 is the circuit block diagram of embodiment one；
Fig. 7 is the circuit block diagram of embodiment one.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
A kind of novel direct current series-excited motor control system, including DC power supply UDC, comprising:
It is connected in series in DC power supply UDCThe first branch 1 and second branch 2；
The first branch 1 includes the third branch 3 and the 4th branch 4 being connected in parallel；
The third branch 3 includes the first IGBT module 301 and the second IGBT module 302 being connected in series；
4th branch 4 includes the third IGBT module 303 and the 4th IGBT module 304 being connected in series；
One end of smoothing reactor L1, institute are connected between first IGBT module 301 and second IGBT module 302
State the other end that smoothing reactor L1 is connected between third IGBT module 303 and the 4th IGBT module 304；
Direct current generator M is in series on one end in the both ends of the smoothing reactor L1.
The second branch 2 includes the 5th branch 5 and the 6th branch 6 being connected in parallel；
5th branch 5, the 5th IGBT module 305 and the 7th diode D7 including series connection；
6th branch 6, the 8th diode D8 and the 6th IGBT module 306 including series connection；
Connect one end of magnetizing inductance Lf between 5th IGBT module 305 and the 7th diode D7, described the
The other end of magnetizing inductance Lf is connected between eight diode D8 and the 6th IGBT module 306.
The direct current generator M will feed back revolving speed and be transferred to the first system adjuster 501, and the direct current generator M turns feedback
Square is transferred to second system adjuster 502, and the first system adjuster 501 and the second system adjuster 502 connect respectively
It is connected to the first linear controller 601 and the second linear controller 602.
The control of the direct current generator M while the given rotating speed and the feedback revolving speed for receiving control system, and will be described
The error of given rotating speed and the feedback revolving speed obtains torque reference after the first linear controller 601, and the torque is given
The difference of the fixed and described feedback torque obtains the first PWM and second with triangle wave after the second linear controller 602
PWM。
The exciting current feedback of the second branch 2 gives the 4th systematic regulator 504, the exciting current and armature supply
Difference the 3rd PWM is obtained with triangle wave after third linear controller 603.
First IGBT module 301 includes the first switch T1 and first diode D1 being connected in parallel；Described second
IGBT module 302 includes the second switch T2 and the second diode D2 being connected in parallel；The third IGBT module 303 includes parallel connection
The third switch T3 and third diode D2 of connection；4th IGBT module 304 include the 4th switch T4 that is connected in parallel with
4th diode D4；
First PWM controls first switch T1 and the 4th switch T4；
2nd PWM controls second switch T2 and third switch T3.
5th IGBT module 305 includes the 5th switch T5 and the 5th diode D5 being connected in parallel；Described 6th
IGBT module 306 includes the 6th switch T6 and the 6th diode D6 being connected in parallel；
3rd PWM controls the 5th switch T5 and the 6th switch T6.
Wherein, when first switch T1 and the 4th switch T4 are opened, UAB both end voltage is supply voltage UDC, when T2, T3 are opened
When logical, UABBoth end voltage is supply voltage-UDC, i.e., in one cycle with the impulse waveform of alternate positive and negative.It is cut by changing
The direction of armature supply is changed, wherein smoothing reactor L1 guarantees the phenomenon that armature supply is not in discontinuous current.
Given rotating speed ωrefWith feedback rotational speed omegafdbError obtained after the first linear controller 601 torque to
It is fixed, torque reference and feedback torque TeDifference obtained after the second linear controller 602 with triangle wave the first PWM and
2nd PWM, wherein the first PWM controls first switch T1 and the 4th switch T4；2nd PWM controls second switch T2 and third switch
T3。
The double half-bridge circuits of the complementation of second branch 2 control excitation winding size of current, but do not change excitation winding electric current
Direction.Equal with armature supply by Current Feedback Control exciting current, Current Feedback Control Circuit is referring to Fig. 3, with armature
The size I of electric currentaIt is given, exciting current IfSize as feedback, the difference of exciting current and armature supply passes through third line
Property controller 603 after with triangle wave the 3rd PWM and the 4th PWM can be obtained, wherein the 3rd PWM controls the 5th switch T5,
4th PWM controls the 6th switch T6.
By the principle of direct current series-excited motor it is recognised that when exciting current identical with armature supply direction, direct current generator is just
It rotates forward, but is inverted as long as the direction of one of exciting current and armature supply changes motor.
Embodiment one
A kind of novel direct current series-excited motor control method:
When direct current generator M is rotated forward；
When first switch T1 and the 4th switch T4 are opened, the direction of armature supply is referring to Fig. 4, UABBoth end voltage be
Supply voltage UDC, power supply gives direct current generator M to provide energy, and armature supply flows through first switch T1, flat wave from positive pole
Reactor L1, direct current generator M, then power cathode is returned to from the 4th switch T4；
After direct current generator M is rotated forward, when second switch T2 and third switch T3 is opened, the direction of armature supply is asked
Refering to Fig. 5, UABBoth end voltage and supply voltage UDCOn the contrary, because the direction of armature supply remains unchanged, armature supply is from flat
Wave reactor L1, direct current generator M, third switch T3 flow into the anode of power supply, are formed into a loop using second switch T2, armature electricity
Stream is the anode for flowing into power supply, therefore direct current generator M is to power supply feedback energy；
When the 5th switch T5 and the 6th switch T6 are opened, the direction of exciting current referring to Fig. 6, power supply to excitation winding
Energy is provided, exciting current flows through the 5th switch T5, excitation winding Lf from positive pole, then returns to from the 6th switch T6
Power cathode；Exciting current is formed, exciting current is consistent with armature supply at this time, and direct current generator M is rotated forward
When the 5th switch T5 and the 6th switch T6 are turned off, the direction of exciting current is referring to Fig. 7, exciting current passes through the
Seven diode D7 and the 8th diode D8 afterflow flow into from the anode of power supply, flow out from the cathode of power supply, energy is fed back to electricity
Source.
When direct current generator M reversion；
When second switch T2 and third switch T3 are opened, the direction of armature supply and Fig. 4 are on the contrary, UBABoth end voltage be
Supply voltage UDC, power supply gives direct current generator M to provide energy, and armature supply flows through third switch T3, flat wave from positive pole
Reactor L1, direct current generator M, then power cathode is returned to from second switch T2；
After motor M is rotated backward, when first switch T1 and the 4th switch T4 is opened, the direction of armature supply and Fig. 5
On the contrary, UBABoth end voltage and supply voltage UDCOn the contrary, because the direction of armature supply remains unchanged, armature supply is from flat wave
Reactor L1, direct current generator M, first switch T1 flow into the anode of power supply, are formed into a loop using the 4th switch T4, armature supply
It is to flow into the anode of power supply, therefore direct current generator M is to power supply feedback energy；
When the 5th switch T5 and the 6th switch T6 are opened, the direction of exciting current referring to Fig. 6, power supply to excitation winding
Energy is provided, exciting current flows through the 5th switch T5, excitation winding Lf from positive pole, then returns to from the 6th switch T6
Power cathode forms exciting current, and exciting current and armature supply are on the contrary, direct current generator M is inverted at this time；
When the 5th switch T5 and the 6th switch T6 are turned off, the direction of exciting current is referring to Fig. 7, exciting current passes through the
Seven diode D7 and the 8th diode D8 afterflow flow into from the anode of power supply, flow out from the cathode of power supply, energy is fed back to electricity
Source.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of novel direct current series-excited motor control system, including DC power supply UDC, it is characterised in that: include:
It is connected in series in the first branch (1) and second branch (2) of DC power supply UDC；
The first branch (1) includes the third branch (3) and the 4th branch (4) being connected in parallel；
The third branch (3) includes the first IGBT module (301) and the second IGBT module (302) being connected in series；
4th branch (4) includes the third IGBT module (303) and the 4th IGBT module (304) being connected in series；
One end of smoothing reactor L1, institute are connected between first IGBT module (301) and second IGBT module (302)
State the other end that smoothing reactor L1 is connected between third IGBT module (303) and the 4th IGBT module (304)；
Direct current generator M is in series on one end in the both ends of the smoothing reactor L1.
2. the novel direct current series-excited motor system of one kind according to claim 1, it is characterised in that:
The second branch (2) includes the 5th branch (5) and the 6th branch (6) being connected in parallel；
5th branch (5), the 5th IGBT module (305) and the 7th diode D7 including series connection；
6th branch (6), the 8th diode D8 and the 6th IGBT module (306) including series connection；
One end of connection magnetizing inductance Lf between 5th IGBT module (305) and the 7th diode D7, the described 8th
The other end of magnetizing inductance Lf is connected between diode D8 and the 6th IGBT module (306).
3. the novel direct current series-excited motor control system of one kind according to claim 1, it is characterised in that: the direct current
Machine M is transferred to revolving speed is fed back the first system adjuster (501), and feedback torque is transferred to second system by the direct current generator M
Adjuster (502), the first system adjuster (501) and the second system adjuster (502) are connected separately with First Line
Property controller (601) and the second linear controller (602).
4. the novel direct current series-excited motor control system of one kind according to claim 3, it is characterised in that: the direct current
Machine M receives given rotating speed and the feedback revolving speed simultaneously, and by the error of the given rotating speed and the feedback revolving speed by the
Obtain torque reference after one linear controller (601), the difference of the torque reference and the feedback torque is linear by second
The first PWM and the 2nd PWM are obtained with triangle wave after controller (602).
5. the novel direct current series-excited motor control system of one kind according to claim 2, it is characterised in that: described second
The exciting current feedback on road (2) gives the 4th systematic regulator (504), and the difference of the exciting current and armature supply passes through third
Linear controller (603) obtains the 3rd PWM with triangle wave afterwards.
6. the novel direct current series-excited motor control system of one kind according to claim 4, it is characterised in that: described first
IGBT module (301) includes the first switch T1 and first diode D1 being connected in parallel；Second IGBT module (302) includes
The second switch T2 and the second diode D2 being connected in parallel；The third IGBT module (303) includes that the third being connected in parallel is opened
Close T3 and third diode D2；4th IGBT module (304) includes the 4th switch T4 and the 4th diode being connected in parallel
D4；
First PWM controls first switch T1 and the 4th switch T4；
2nd PWM controls second switch T2 and third switch T3.
7. the novel direct current series-excited motor control system of one kind according to claim 5, it is characterised in that: the described 5th
IGBT module (305) includes the 5th switch T5 and the 5th diode D5 being connected in parallel；6th IGBT module (306) includes
The 6th switch T6 being connected in parallel and the 6th diode D6；
3rd PWM controls the 5th switch T5 and the 6th switch T6.
8. a kind of novel direct current series-excited motor control method, which comprises the following steps:
When the positive M of direct current generator is rotated forward；
When first switch T1 and the 4th switch T4 are opened, UABBoth end voltage be supply voltage UDC, power supply give direct current generator M provide
Energy, armature supply flows through first switch T1, smoothing reactor L1, direct current generator M from positive pole, then opens from the 4th
It closes T4 and returns to power cathode；After direct current generator M is rotated forward, when second switch T2 and third switch T3 is opened, the two of UAB
Hold voltage and supply voltage UDC on the contrary, armature supply flows into power supply from smoothing reactor L1, direct current generator M, third switch T3
Anode is formed into a loop using second switch T2；
When the 5th switch T5 and the 6th switch T6 are opened, exciting current flows through the 5th switch T5, excitation from positive pole
Winding Lf, then power cathode is returned to from the 6th switch T6；Exciting current is formed, exciting current is consistent with armature supply at this time, directly
Galvanic electricity machine M is rotated forward；
When the 5th switch T5 and the 6th switch T6 is turned off, exciting current is continuous by the 7th diode D7 and the 8th diode D8
Stream flows into from the anode of power supply, flows out from the cathode of power supply, energy is fed back to power supply.
9. the novel direct current series-excited motor control method of one kind according to claim 8, which is characterized in that further include following
Step:
When direct current generator M reversion:
When second switch T2 and third switch T3 are opened, UBABoth end voltage be power supply UDC, power supply give direct current generator M provide energy
Amount, armature supply flow through third switch T3, smoothing reactor L1, direct current generator M from positive pole, then from second switch
T2 returns to power cathode；
After motor M is rotated backward, when first switch T1 and the 4th switch T4 is opened, UBABoth end voltage and supply voltage UDC
On the contrary, armature supply flows into the anode of power supply from smoothing reactor L1, direct current generator M, first switch T1, using the 4th switch
T4 forming circuit；
When the 5th switch T5 and the 6th switch T6 are opened, exciting current flows through the 5th switch T5, excitation from positive pole
Winding Lf, then power cathode is returned to from the 6th switch T6, form excitation exciting current, direct current generator M reversion；
When the 5th switch T5 and the 6th switch T6 is turned off, exciting current is continuous by the 7th diode D7 and the 8th diode D8
Stream flows into from the anode of power supply, flows out from the cathode of power supply, energy is fed back to power supply.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971160A (en) * | 2019-11-19 | 2020-04-07 | 郑州嘉晨电器有限公司 | DC motor rotating speed online control method and system |
| CN114268253A (en) * | 2021-12-20 | 2022-04-01 | 北京理工大学 | Direct current series excitation motor controller with energy feedback function |
| CN116032164A (en) * | 2022-12-29 | 2023-04-28 | 兰州飞行控制有限责任公司 | A DC brushed motor PWM control power conversion circuit |
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| US4453111A (en) * | 1982-04-09 | 1984-06-05 | Westinghouse Electric Corp. | Electric drive for submarines |
| CN104518717A (en) * | 2015-01-06 | 2015-04-15 | 沈阳辽通电气有限公司 | Direct current speed regulator of series-excited motor |
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| US4453111A (en) * | 1982-04-09 | 1984-06-05 | Westinghouse Electric Corp. | Electric drive for submarines |
| CN104518717A (en) * | 2015-01-06 | 2015-04-15 | 沈阳辽通电气有限公司 | Direct current speed regulator of series-excited motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971160A (en) * | 2019-11-19 | 2020-04-07 | 郑州嘉晨电器有限公司 | DC motor rotating speed online control method and system |
| CN114268253A (en) * | 2021-12-20 | 2022-04-01 | 北京理工大学 | Direct current series excitation motor controller with energy feedback function |
| CN116032164A (en) * | 2022-12-29 | 2023-04-28 | 兰州飞行控制有限责任公司 | A DC brushed motor PWM control power conversion circuit |
| CN116032164B (en) * | 2022-12-29 | 2025-12-05 | 兰州飞行控制有限责任公司 | A DC brushed motor PWM control power conversion circuit |
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| Publication number | Publication date |
|---|---|
| CN109546906B (en) | 2021-04-02 |
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Denomination of invention: DC series excitation motor control system and method Effective date of registration: 20220222 Granted publication date: 20210402 Pledgee: Bank of China Limited Wuhan Jianghan sub branch Pledgor: WUHAN ZHENGYUAN ELECTRIC Co.,Ltd. Registration number: Y2022420000040 |