CN106364332B - A kind of brake system of electric locomotive and its control method - Google Patents
A kind of brake system of electric locomotive and its control method Download PDFInfo
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- CN106364332B CN106364332B CN201610804110.2A CN201610804110A CN106364332B CN 106364332 B CN106364332 B CN 106364332B CN 201610804110 A CN201610804110 A CN 201610804110A CN 106364332 B CN106364332 B CN 106364332B
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005284 excitation Effects 0.000 claims abstract description 95
- 230000001105 regulatory effect Effects 0.000 claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000001276 controlling effect Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 12
- 230000004907 flux Effects 0.000 claims description 11
- 238000004804 winding Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 206010044565 Tremor Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/18—Controlling the braking effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/429—Current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The present invention provides a kind of brake system of electric locomotive and its control methods, it is related to electric locomotive transmission control field, it solves the difference in the prior art due to energy feeding braking and resistive braking, individually adjusts control method the problem of cannot achieve the stable regulation to armature supply of excitation.System includes traction electric machine (10), main transformer (20), energy back feed device (30), excitation control system (40) and armature regulating system (50), excitation control system includes excitation rectifier bridge (41) and rectifier control device (42), and rectifier control device is for controlling excitation rectifier bridge；Armature regulating system includes armature adjuster (52), regulating current device (51) and armature supply sensor (53), and armature supply sensor is for detecting armature supply；Armature adjuster is for controlling regulating current device；Regulating current device is for adjusting armature supply.The embodiment of the present invention is mainly used in the braking process of electric locomotive.
Description
Technical field
The present invention relates to electric locomotive transmission control field more particularly to a kind of brake system of electric locomotive and its controlling parties
Method.
Background technique
Currently, friendship-direct-transmission electric locomotive retarding braking generally uses resistive braking mode, i.e. traction electric machine generates electricity
State operation, train dynamics generate electricity to rotary drive motor by wheel, and electric energy is consumed in the form of generating heat by resistance, to realize column
Vehicle slows down.The stalling current for requiring maintenance stable when train braking needs to adjust exciting current I to avoid slack actionF,
So that traction electric machine is maintained stable generating voltage U, makes armature supply IM(IM=U/R) it keeps stablizing.
As technology develops, resistive braking mode is gradually replaced by energy feeding braking technology, newly because being not energy-saving and environment-friendly
Mode of braking electric energy that motor is issued be no longer consumed in resistance, but drawing electric network is fed back to by energy back feed device
It recycles.
Due to the difference of energy feeding braking and resistive braking, the control method for individually adjusting excitation be cannot achieve to armature
The stable regulation of electric current.
Summary of the invention
The embodiment of the present invention provides a kind of brake system of electric locomotive and its control method, realizes to excitation and armature
The separation adjusting of electric current, while ensure that the stable regulation of armature supply.
To achieve the goals above, the embodiment of the present invention adopts the following technical scheme that：
A kind of brake system of electric locomotive, including traction electric machine, main transformer and energy back feed device, the system are also wrapped
It includes：
Excitation control system and armature regulating system；
Wherein, the excitation control system includes excitation rectifier bridge and rectifier control device, and the rectifier control device is used
In the control excitation rectifier bridge；
The armature regulating system includes armature adjuster, regulating current device and armature supply sensor, the armature
Current sensor, for detecting armature supply；The armature adjuster, for what is detected according to the armature supply sensor
Armature supply controls the adjusting that the regulating current device carries out armature supply；The regulating current device, for adjusting armature
Electric current.
Optionally, the rectifier control device includes field regulator and exciting current sensor, and the exciting current passes
Sensor, for detecting exciting current；The field regulator, the excitation electricity for being detected according to the exciting current sensor
Excitation rectifier bridge described in flow control is adjusted；Alternatively,
The rectifier control device includes field regulator and armature voltage sensor, and the armature voltage sensor is used
In detection armature voltage；The field regulator, the armature voltage control for being detected according to the armature voltage sensor
The excitation rectifier bridge is adjusted.
Optionally, the system also includes motion control units, for obtaining the current hand of locomotive in the interval predetermined time
Handle level and locomotive speed, and according to the handle level, locomotive speed and brake circuit impedance, obtain armature supply target value
The armature tune is sent respectively to and by the armature supply target value and armature voltage target value with armature voltage target value
Save device and the field regulator.
Optionally, it the system also includes motion control unit, is also used to obtain locomotive in the interval predetermined time current
Handle level and locomotive speed, and according to the handle level, locomotive speed, locomotive wheel diameter, brake circuit impedance, gear drive
Than, constant of the machine and machine-magnetization curve table, armature supply target value and exciting current target value are obtained, and by the armature electricity
Target value and exciting current target value are flowed, the armature adjuster and the field regulator are sent respectively to.
Optionally, the armature adjuster is also used to obtain the current handle level and machine of locomotive in the interval predetermined time
Vehicle speed, and according to the handle level and locomotive speed, armature supply target value is obtained, according to the armature supply target value
Adjust the regulating current device.
Optionally, the field regulator is also used to obtain the current handle level and machine of locomotive in the interval predetermined time
Vehicle speed, and according to the handle level, locomotive speed and brake circuit impedance, armature voltage target value is obtained, according to described
Armature voltage target value adjusts the excitation rectifier bridge；Alternatively,
It is also used to obtain the current handle level and locomotive speed of locomotive in the interval predetermined time, and according to the handle grade
Position, locomotive speed, locomotive wheel diameter, brake circuit impedance, gear ratio, constant of the machine and machine-magnetization curve table, are encouraged
Magnetic current target value adjusts the excitation rectifier bridge according to the exciting current target value.
Optionally, the armature adjuster is traction control unit.
Optionally, the field regulator is motion control unit.
Optionally, the regulating current device is chopper.
A kind of control method of brake system of electric locomotive, which is characterized in that including：
It is spaced predetermined time acquisition locomotive current handle level and locomotive speed；
According to the handle level and locomotive speed, armature supply target value is obtained；
According to the handle level, locomotive speed and brake circuit impedance, or according to the handle level, locomotive speed
Degree, locomotive wheel diameter, brake circuit impedance, gear ratio, constant of the machine and machine-magnetization curve table, obtain adjustment of field excitation target
Value；
According to the armature supply target value and the adjustment of field excitation target value, adjust respectively the regulating current device and
The excitation rectifier bridge.
Optionally, described according to the handle level and locomotive speed, obtaining armature supply target value includes：
According to IzArmature supply target value is calculated in=max { 56v-560 (n-1)+70,70 }, wherein IzFor armature supply
Target value, v are locomotive speed, and n is handle level, and 1≤n≤10.
Optionally, described according to the handle level, locomotive speed and brake circuit impedance, obtain adjustment of field excitation target value
Including：
According to IzArmature current value is calculated in=max { 56v-560 (n-1)+70,70 }, wherein IzFor armature current value, v
For locomotive speed, n is handle level, and 1≤n≤10；
According to U=Iz*∑RzArmature voltage target value is calculated, the armature voltage target value is the adjustment of field excitation
Target value, wherein U is armature voltage target value, IzFor armature current value, ∑ RzFor brake circuit impedance.
Optionally, described according to the handle level, locomotive speed, locomotive wheel diameter, brake circuit impedance, gear drive
Than, constant of the machine and machine-magnetization curve table, obtaining adjustment of field excitation target value includes：
According to IzArmature current value is calculated in=max { 56v-560 (n-1)+70,70 }, wherein IzFor armature current value, v
For locomotive speed, n is handle level, and 1≤n≤10；
According toMain pole magnetic flux is calculated, wherein Φ is main pole magnetic flux, and D is locomotive wheel diameter, Iz
For the armature current value, ∑ RzFor brake circuit impedance, V is the locomotive speed, μcFor gear ratio, CeIt is normal for motor
Number；
According to the main pole magnetic flux, corresponding exciting current target value is searched in the machine-magnetization curve table, it is described
Exciting current target value is the adjustment of field excitation target value.
A kind of brake system of electric locomotive provided in an embodiment of the present invention and its control method, the system comprises traction electricity
Machine, main transformer, energy back feed device, excitation control system and armature regulating system, wherein the excitation control system includes
Excitation rectifier bridge and rectifier control device, the rectifier control device, for controlling the excitation rectifier bridge；The armature is adjusted
System includes armature adjuster, regulating current device and armature supply sensor, the armature supply sensor, for detecting electricity
Pivot electric current；The armature adjuster, for controlling the regulating current device；The regulating current device, for adjusting armature
Electric current.The embodiment of the present invention solves the difference due to energy feeding braking and resistive braking in the prior art, individually adjusts and encourages
The control method of magnetic cannot achieve the problem of stable regulation to armature supply, realize the separation tune to excitation and armature supply
Section, while ensure that the stable regulation of armature supply.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of structural schematic diagram of brake system of electric locomotive provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another brake system of electric locomotive provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another brake system of electric locomotive provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of yet a further brake system of electric locomotive provided in an embodiment of the present invention；
Fig. 5 is a kind of flow chart of the control method of brake system of electric locomotive provided in an embodiment of the present invention；
Fig. 6 is a kind of default armature supply table of comparisons provided in an embodiment of the present invention；
Fig. 7 is a kind of machine-magnetization curve table provided in an embodiment of the present invention.
Description of symbols
10 traction electric machine, 11 traction electric machine magnet exciting coil
20 main transformer, 21 high-voltage winding
22 excitation winding, 23 tractive winding
30 energy back feed device, 40 excitation control system
41 excitation rectifier bridge, 42 rectifier control device
43 field regulators
44 exciting current sensors or armature voltage sensor
50 armature regulating system, 51 regulating current device
52 armature adjuster, 53 armature supply sensor
60 motion control unit, 70 traction control unit
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The embodiment of the invention provides a kind of brake system of electric locomotive, are power suitable for using DC traction motor
Friendship-direct-transmission electric locomotive, as shown in Figure 1, the system comprises traction electric machine 10, main transformer 20, energy back feed device 30,
Excitation control system 40 and armature regulating system 50.Wherein, the excitation control system 40 to the traction electric machine 10 for mentioning
For excitation, the armature regulating system 50 is for adjusting the electric energy that the traction electric machine 10 is issued.When the system is run, institute
It states and generates electricity under the driving of the excitation provided by the excitation control system 40 of traction electric machine 10, the electric energy of sending passes through the armature
Enter the energy back feed device 30 after regulating system 50, electric energy inversion is alternating current by the energy back feed device 30, then is led to
The tractive winding 23 and high-voltage winding 21 for crossing the main transformer 20, are transmitted back to drawing electric network (Fig. 1 is not indicated).
It wherein, include high-voltage winding 21, excitation winding 22, tractive winding 23 in the main transformer 20.The high voltage winding
Group 21 is connect with the drawing electric network, for powering to the excitation winding 22, while the energy of the tractive winding 23 being returned
The drawing electric network is fed to go.
The excitation control system 40 includes excitation rectifier bridge 41 and rectifier control device 42.From the excitation winding 22
Alternating current by the excitation rectifier bridge 41 rectify after, to the traction electric machine magnet exciting coil 11 power.
The armature regulating system 50 includes armature adjuster 52, regulating current device 51 and armature supply sensor 53.
The armature supply sensor 53 is used to be sensed according to the armature supply for detecting armature supply, the armature adjuster 52
The armature supply that device 53 detects controls the adjusting that the regulating current device 51 carries out armature supply.The current regulation dress
51 are set for adjusting armature supply.The armature adjuster 52 controls the regulating current device 51 and works, and passes through the electricity
Pivot current sensor 53, which is realized, adjusts the closed loop of armature supply.A variety of shapes such as chopper can be used in the regulating current device 51
Formula, effect are that the size of current for giving the energy back feed device 30 is adjusted under the armature adjuster 52 control.
The embodiment of the present invention solves the difference due to energy feeding braking and resistive braking in the prior art, individually adjusts
The control method of excitation cannot achieve the problem of stable regulation to armature supply, realizes while meeting resistive braking and energy
The control for brake of train under regenerative braking two ways, while excitation being separated with armature supply adjusting, it can be realized armature
The quick adjusting of electric current, solves under single exciter field that armature supply variation is slow, system responds blunt defect.In addition,
Excitation is separated with armature supply adjusting, avoids influence of the energized circuit interference to armature supply, solves due to exciting current
Shakiness causes armature supply to fluctuate, and brakes unstable problem.
Optionally, as shown in Fig. 2, in a kind of brake system of electric locomotive provided in an embodiment of the present invention, the rectification control
Device 42 processed includes field regulator 43 and exciting current sensor (or armature voltage sensor) 44.Wherein, when the rectification
When including field regulator 43 and exciting current sensor 44 in control device 42, the exciting current sensor 44 is for detecting
Exciting current；The field regulator 43, the exciting current for being detected according to the exciting current sensor 44 control institute
Excitation rectifier bridge 41 is stated to be adjusted.When in the rectifier control device 42 include field regulator 43 and armature voltage sensor
When 44, the armature voltage sensor 44, for detecting armature voltage；The field regulator 43, for according to the armature
The armature voltage that voltage sensor 44 detects controls the excitation rectifier bridge 41 and is adjusted.
The field regulator 43 detects exciting current or the armature voltage by the exciting current sensor 44
Sensor 44 detects armature voltage, controls the excitation rectifier bridge 41 and works, realizes the closed loop to exciting current or armature voltage
It adjusts.Wherein, the excitation rectifier bridge 41 is real by changing the angle of flow of thyristor under the field regulator 43 control
Now to the adjusting of electric current, this is identical with original exciter field.
Although exciting current (or armature voltage) and armature supply are respectively separately adjustable, generally require in practical applications
Two regulating systems are associated, to meet locomotive brake requirement.As shown in figure 3, the brake system of electric locomotive also wraps
Motion control unit 60 is included, the field regulator 43, the armature adjuster 52 and the motion control unit 60 are carried out
Association.
Can be by armature voltage value or exciting current value, two different parameters adjust the excitation rectifier bridge
41.When adjusting the excitation rectifier bridge 41 using armature voltage value, the motion control unit 60, for predetermined at interval
Time obtains the current handle level and locomotive speed of locomotive, and is hindered according to the handle level, locomotive speed and brake circuit
It is anti-, obtain armature supply target value and armature voltage target value, and by the armature supply target value and armature voltage target value,
It is sent respectively to the armature adjuster 52 and the field regulator 43.
When adjusting the excitation rectifier bridge 41 using exciting current value, the motion control unit 60, for
The current handle level and locomotive speed of locomotive is obtained every the predetermined time, and according to the handle level, locomotive speed, locomotive wheel
Diameter, brake circuit impedance, gear ratio, constant of the machine and machine-magnetization curve table, obtain armature supply target value and excitation
Current target value, and by the armature supply target value and exciting current target value, it is sent respectively to the armature adjuster 52
With the field regulator 43.The field regulator 43 and the armature adjuster 52 are being respectively received the exciting current
After target value and armature supply target value, closed loop adjusting is carried out, the target value of adjusting is then fed back into the transmission and controls list
Member 60, the latter is shown to staff by terminal.
Optionally, the brake system of electric locomotive is not in the case where including motion control unit 60, by described
Armature adjuster 52 and the field regulator 43 independently obtain the current handle level and locomotive speed of locomotive, and carry out
Corresponding target value is calculated.
Specifically, the armature adjuster 52, be also used to the interval predetermined time obtain the current handle level of locomotive and
Locomotive speed, and according to the handle level and locomotive speed, armature supply target value is obtained, according to the armature supply target
Value adjusts the regulating current device 51.The field regulator 43 is also used to obtain locomotive in the interval predetermined time current
Handle level and locomotive speed, and according to the handle level, locomotive speed and brake circuit impedance, obtain armature voltage target
Value adjusts the excitation rectifier bridge 41 according to the armature voltage target value；Alternatively, being also used to obtain machine in the interval predetermined time
Vehicle current handle level and locomotive speed, and according to the handle level, locomotive speed, locomotive wheel diameter, brake circuit impedance,
Gear ratio, constant of the machine and machine-magnetization curve table, obtain exciting current target value, according to the exciting current target value
Adjust the excitation rectifier bridge 41.
In embodiments of the present invention to the adjusting of exciting current (or armature voltage) and armature supply, can be set by dedicated
It is standby to be implemented, such as field regulator and armature adjuster, the realization of other existing equipments, such as the armature can also be borrowed
Adjuster is traction control unit, and the field regulator is motion control unit.
When optionally, for using resistive braking mode, exciting current or armature voltage only need to be adjusted, without to armature
Electric current is controlled, and can the armature regulating system 50 be closed or be cancelled at this time, only start or retain the adjustment of field excitation system
System 40.In this case, the field regulator 43 and the motion control unit 60 need to be only associated, the latter
The information such as locomotive current handle level and locomotive speed are obtained, the armature voltage target value or excitation under current working are calculated
Current target value is sent to the excitation control system 40；Alternatively, not needing to control the field regulator 43 with the transmission
Unit 60 processed is associated, and the field regulator 43 directly acquires the information such as the current handle level of locomotive and locomotive speed,
Calculate the armature voltage target value or exciting current target value under current working.
To transmit and controlling convenient for information, the field regulator 43 can be integrated in the motion control unit by when application
60.Since the armature regulating system 50 is only acted in regenerative braking, when application, can integrate the armature regulating system 50
In in the energy back feed device 30, in favor of information transmission and control.
Optionally, as shown in figure 4, another implementation of the embodiment of the present invention, is simplified system, by the Excitation Adjustment
Section device 43 and the armature adjuster 52 are integrated in respectively in the motion control unit 60 and traction control unit 70.Wherein,
The motion control unit 60 realizes locomotive traction control, in addition to carrying out the adjusting of exciting current or armature voltage, also completes letter
Number acquisition, train speed control etc. functions；The traction control unit 70 realizes locomotive brake control, except progress armature supply tune
Section is outer, also realizes the control to the energy back feed device 50.
Correspondingly, the embodiment of the present invention also provides a kind of control method of brake system of electric locomotive, as shown in figure 5, institute
The method of stating includes：
501, the interval predetermined time obtains the current handle level and locomotive speed of locomotive.
The predetermined time is Millisecond, for example, 5ms.By obtaining the current hand of locomotive in real time in the embodiment of the present invention
Handle level and locomotive speed, to carry out locomotive brake control in real time.
502, according to the handle level and locomotive speed, armature supply target value is obtained.
With specific reference to IzArmature supply target value is calculated in=max { 56v-560 (n-1)+70,70 }, wherein IzFor armature
Current target value, unit A, v are locomotive speed, and unit km/h, n are handle level, and 1≤n≤10.
Corresponding curve graph is as shown in Figure 6, wherein ordinate is armature current value, and abscissa is locomotive speed, and n is hand
Handle level.Electric locomotive for different models, the corresponding default armature supply table of comparisons will be different, can be according to reality
The model of border electric locomotive is converted.
503, according to the handle level, locomotive speed and brake circuit impedance, or according to the handle level, locomotive
Speed, locomotive wheel diameter, brake circuit impedance, gear ratio, constant of the machine and machine-magnetization curve table, obtain Excitation Adjustment program
Scale value.
The specific implementation method of above-mentioned steps 503 can be realized by the following two kinds mode：
Mode one, the adjustment of field excitation target value are armature voltage target value：
According to IzArmature current value is calculated in=max { 56v-560 (n-1)+70,70 }, wherein IzFor armature current value, v
For locomotive speed, n is handle level, and 1≤n≤10；
According to U=Iz*∑RzArmature voltage target value is calculated, the adjustment of field excitation target value is the armature voltage
Target value, wherein U is armature voltage target value, IzFor armature current value, ∑ RzFor brake circuit impedance.
Mode two, the adjustment of field excitation target value are exciting current target value：
According to IzArmature current value is calculated in=max { 56v-560 (n-1)+70,70 }, wherein IzFor armature current value, v
For locomotive speed, n is handle level, and 1≤n≤10；
According toMain pole magnetic flux is calculated, wherein Φ is main pole magnetic flux, and D is locomotive wheel diameter, Iz
For the armature current value, ∑ RzFor brake circuit impedance, V is the locomotive speed, μcFor gear ratio, CeIt is normal for motor
Number；
According to the main pole magnetic flux, corresponding exciting current target value is searched in the machine-magnetization curve table, it is described
Exciting current target value is the adjustment of field excitation target value.
As shown in fig. 7, being the machine-magnetization curve table, wherein ordinate is main pole magnetic flux, and abscissa is excitation electricity
Stream is searched in the electrode magnetization curve table according to the main pole magnetic flux being calculated and obtains corresponding exciting current target value.
Above-mentioned steps 501-503 can realize to obtain the armature supply target value by motion control unit and described encourage
Then magnetically condition target value is sent respectively to the armature adjuster and the magnetic regulator, can also pass through the armature
Adjuster and the magnetic regulator respectively obtain the armature supply target value and the adjustment of field excitation target value, do not do herein
It limits.
504, according to the armature supply target value and the adjustment of field excitation target value, the current regulation dress is adjusted respectively
It sets and the excitation rectifier bridge.
When the armature adjuster and the magnetic regulator respectively obtain the armature supply target value and the excitation
After adjusting target value, the armature adjuster is by the armature supply target value and armature supply sensor, described in adjusting
Regulating current device；The magnetic regulator by the adjustment of field excitation target value and sensor (exciting current sensor or
Armature voltage sensor), adjust the excitation rectifier bridge.
By above-mentioned control method, the embodiment of the present invention is solved in the prior art due to energy feeding braking and resistance system
It the problem of dynamic difference, individually the control method of adjusting excitation cannot achieve the stable regulation to armature supply, realizes simultaneously
Meet the control for brake of resistive braking and the train under energy feeding braking two ways, while excitation and armature supply being adjusted
Separation, can be realized the quick adjusting of armature supply, solves armature supply under single exciter field and changes slow, system response
Blunt defect.In addition, excitation is separated with armature supply adjusting, influence of the energized circuit interference to armature supply, solution are avoided
It has determined since exciting current shakiness causes armature supply to fluctuate, has braked unstable problem.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (13)
1. a kind of brake system of electric locomotive, including traction electric machine, main transformer and energy back feed device, which is characterized in that institute
The system of stating further includes：
Excitation control system, for providing excitation to the traction electric machine；With
Armature regulating system, the electric energy issued for adjusting the traction electric machine；
Wherein, it generates electricity under the driving of traction electric machine excitation provided by the excitation control system, the electric energy of sending passes through
The armature regulating system enters the energy back feed device after adjusting, and the energy back feed device is inverse by the electric energy after adjusting
Become alternating current, then drawing electric network is transmitted back to by the main transformer；
Wherein, the excitation control system includes excitation rectifier bridge and rectifier control device, the rectifier control device, for controlling
Make the excitation rectifier bridge；
The armature regulating system includes armature adjuster, regulating current device and armature supply sensor, the armature supply
Sensor, for detecting armature supply；The armature adjuster, the armature for being detected according to the armature supply sensor
Electric current controls the adjusting that the regulating current device carries out armature supply；The regulating current device, for adjusting armature electricity
Stream.
2. brake system of electric locomotive according to claim 1, which is characterized in that the rectifier control device includes excitation
Adjuster and exciting current sensor, the exciting current sensor, for detecting exciting current；The field regulator is used
The excitation rectifier bridge is controlled in the exciting current detected according to the exciting current sensor to be adjusted；Alternatively,
The rectifier control device includes field regulator and armature voltage sensor, the armature voltage sensor, for examining
Survey armature voltage；The field regulator, for being detected according to the armature voltage sensor armature voltage control described in
Excitation rectifier bridge is adjusted.
3. brake system of electric locomotive according to claim 2, which is characterized in that the system also includes transmission control is single
Member, for obtaining the current handle level and locomotive speed of locomotive in the interval predetermined time, and according to the handle level, locomotive
Speed and brake circuit impedance, obtain armature supply target value and armature voltage target value, and by the armature supply target value
With armature voltage target value, it is sent respectively to the armature adjuster and the field regulator.
4. brake system of electric locomotive according to claim 2, which is characterized in that the system also includes transmission control is single
Member is also used to obtain the current handle level and locomotive speed of locomotive in the interval predetermined time, and according to the handle level, machine
Vehicle speed, locomotive wheel diameter, brake circuit impedance, gear ratio, constant of the machine and machine-magnetization curve table, obtain armature supply
Target value and exciting current target value, and by the armature supply target value and exciting current target value, it is sent respectively to described
Armature adjuster and the field regulator.
5. brake system of electric locomotive according to claim 1, which is characterized in that the armature adjuster is also used to
It is spaced predetermined time acquisition locomotive current handle level and locomotive speed, and according to the handle level and locomotive speed, is obtained
To armature supply target value, the regulating current device is adjusted according to the armature supply target value.
6. brake system of electric locomotive according to claim 2, which is characterized in that the field regulator is also used to
It is spaced predetermined time acquisition locomotive current handle level and locomotive speed, and according to the handle level, locomotive speed and system
Dynamic impedance loop, obtains armature voltage target value, adjusts the excitation rectifier bridge according to the armature voltage target value；Alternatively,
Be also used to obtain the current handle level and locomotive speed of locomotive in the interval predetermined time, and according to the handle level,
Locomotive speed, locomotive wheel diameter, brake circuit impedance, gear ratio, constant of the machine and machine-magnetization curve table obtain excitation electricity
Target value is flowed, the excitation rectifier bridge is adjusted according to the exciting current target value.
7. brake system of electric locomotive according to claim 5, which is characterized in that the armature adjuster is traction control
Unit.
8. brake system of electric locomotive according to claim 6, which is characterized in that the field regulator is transmission control
Unit.
9. brake system of electric locomotive according to claim 1, which is characterized in that the regulating current device is copped wave
Device.
10. the control method of -9 described in any item brake system of electric locomotive according to claim 1, which is characterized in that including：
It is spaced predetermined time acquisition locomotive current handle level and locomotive speed；
According to the handle level and locomotive speed, armature supply target value is obtained；
According to the handle level, locomotive speed and brake circuit impedance, or according to the handle level, locomotive speed, machine
Wheel diameter, brake circuit impedance, gear ratio, constant of the machine and machine-magnetization curve table, obtain adjustment of field excitation target value；
According to the armature supply target value and the adjustment of field excitation target value, the regulating current device and described is adjusted respectively
Excitation rectifier bridge.
11. the control method of brake system of electric locomotive according to claim 10, which is characterized in that described according to
Handle level and locomotive speed, obtaining armature supply target value includes：
According to IzArmature supply target value is calculated in=max { 56v-560 (n-1)+70,70 }, wherein IzFor armature supply target
Value, v are locomotive speed, and n is handle level, and 1≤n≤10.
12. the control method of brake system of electric locomotive according to claim 10, which is characterized in that described according to
Handle level, locomotive speed and brake circuit impedance, obtaining adjustment of field excitation target value includes：
According to IzArmature current value is calculated in=max { 56v-560 (n-1)+70,70 }, wherein IzFor armature current value, v is machine
Vehicle speed, n are handle level, and 1≤n≤10；
According to U=Iz*∑RzArmature voltage target value is calculated, the armature voltage target value is the adjustment of field excitation target
Value, wherein U is armature voltage target value, IzFor armature current value, ∑ RzFor brake circuit impedance.
13. the control method of brake system of electric locomotive according to claim 10, which is characterized in that described according to
Handle level, locomotive speed, locomotive wheel diameter, brake circuit impedance, gear ratio, constant of the machine and machine-magnetization curve table,
Obtaining adjustment of field excitation target value includes：
According to IzArmature current value is calculated in=max { 56v-560 (n-1)+70,70 }, wherein IzFor armature current value, v is machine
Vehicle speed, n are handle level, and 1≤n≤10；
According toMain pole magnetic flux is calculated, wherein Φ is main pole magnetic flux, and D is locomotive wheel diameter, IzFor institute
State armature current value, ∑ RzFor brake circuit impedance, V is the locomotive speed, μcFor gear ratio, CeFor constant of the machine；
According to the main pole magnetic flux, corresponding exciting current target value, the excitation are searched in the machine-magnetization curve table
Current target value is the adjustment of field excitation target value.
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| CN201610804110.2A CN106364332B (en) | 2016-09-06 | 2016-09-06 | A kind of brake system of electric locomotive and its control method |
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| CN201610804110.2A CN106364332B (en) | 2016-09-06 | 2016-09-06 | A kind of brake system of electric locomotive and its control method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386299A (en) * | 1979-12-20 | 1983-05-31 | Societe Anonyme Dite: Alsthom-Atlantique | Electronic control circuit for a separately excited DC machine |
| CN2584447Y (en) * | 2002-11-23 | 2003-11-05 | 大连机车车辆厂 | Resistance brake control device for locomotive |
| CN201410888Y (en) * | 2009-06-12 | 2010-02-24 | 唐德修 | Power generating device used in automobile braking |
| CN201841967U (en) * | 2010-10-18 | 2011-05-25 | 益阳市鹏程科技发展有限公司 | Motor vehicle brake energy recycle control device |
| CN103171443A (en) * | 2011-12-26 | 2013-06-26 | 爱信精机株式会社 | Braking apparatus for vehicle |
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2016
- 2016-09-06 CN CN201610804110.2A patent/CN106364332B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386299A (en) * | 1979-12-20 | 1983-05-31 | Societe Anonyme Dite: Alsthom-Atlantique | Electronic control circuit for a separately excited DC machine |
| CN2584447Y (en) * | 2002-11-23 | 2003-11-05 | 大连机车车辆厂 | Resistance brake control device for locomotive |
| CN201410888Y (en) * | 2009-06-12 | 2010-02-24 | 唐德修 | Power generating device used in automobile braking |
| CN201841967U (en) * | 2010-10-18 | 2011-05-25 | 益阳市鹏程科技发展有限公司 | Motor vehicle brake energy recycle control device |
| CN103171443A (en) * | 2011-12-26 | 2013-06-26 | 爱信精机株式会社 | Braking apparatus for vehicle |
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| CN106364332A (en) | 2017-02-01 |
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