CN107517026A - Synchronous rectification generator and protection method thereof - Google Patents
Synchronous rectification generator and protection method thereof Download PDFInfo
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- CN107517026A CN107517026A CN201610803925.9A CN201610803925A CN107517026A CN 107517026 A CN107517026 A CN 107517026A CN 201610803925 A CN201610803925 A CN 201610803925A CN 107517026 A CN107517026 A CN 107517026A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002547 anomalous effect Effects 0.000 claims description 54
- 230000005611 electricity Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 230000002452 interceptive effect Effects 0.000 claims 2
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005314 correlation function Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002964 excitative effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
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- Control Of Eletrric Generators (AREA)
Abstract
The invention relates to a synchronous rectification generator and a protection method thereof. The synchronous rectification generator includes an alternator, a rectifier circuit, a regulator circuit, and a controller circuit. An alternator having a field coil and a power generation coil section converts mechanical energy into alternating current energy. The rectifier circuit converts ac power to dc power. The regulator circuit regulates the current of the field coil. The controller circuit controls a rectifying operation of the rectifier circuit and detects whether an abnormal event occurs in the rectifier circuit. When an abnormal event occurs in the rectifier circuit, the controller circuit causes the regulator circuit to reduce or stop supplying current to the field coil. When the abnormal event happens to the rectifier circuit, the circuit provided by the invention can immediately protect the rectifier circuit.
Description
Technical field
The invention relates to a kind of generator circuit, and in particular to a kind of synchronous rectification generator and rectifier
The guard method of circuit.
Background technology
Existing vehicle alternator is made up of rotor (rotor) coil and stator (stator) coil.When excitatory
When electric current passes through rotor coil, rotor coil can provide magnetic field to stator coil.When the internal combustion engine rotor driven line of automobile
When circle rotates, this rotor coil can produce rotating excitation field so that stator coil produces AC energy.Rectifier receives to be selfed
The AC energy of generator is flowed, direct current energy is produced after giving rectification.This direct current energy can charge to battery.This battery
Exciting curent can be provided to rotor coil.
In general, a large amount of electric currents for flowing through rectifier can increase the temperature of rectifier.When rectifier operation temperature too
Gao Shi, rectifier can damage because of high temperature.
The content of the invention
The present invention provides a kind of synchronous rectification generator and its guard method, and abnormal thing can occurs in rectifier circuit in it
During part, rectifier circuit is protected immediately, is damaged with preventing rectifier circuit because of the generation of anomalous event.
Embodiments of the invention provide a kind of synchronous rectification generator.Synchronous rectification generator includes alternating current generator, whole
Flow device circuit, adjuster circuit and controller circuitry.Alternating current generator has field coil and power coil portion, to by mechanical energy
Be converted to AC energy.Rectifier circuit is electrically connected to power coil portion.Rectifier circuit is AC energy to be converted to directly
Flow electric energy.Adjuster circuit is electrically connected to rectifier circuit, to detect direct current energy.Adjuster circuit is electrically connected to field coil,
To adjust the electric current of field coil.Controller circuitry is electrically connected to rectifier circuit and adjuster circuit, to control rectifier electric
Whether the rectifying operation and detection rectifier circuit on road occur anomalous event.When anomalous event occurs for rectifier circuit, control
Device circuit processed makes adjuster circuit reduce or stop supplying current to the field coil.
Embodiments of the invention provide a kind of guard method of synchronous rectification generator.Synchronous rectification generator includes rectification
Device circuit, adjuster circuit, controller circuitry and field coil.The guard method includes：Whether detection rectifier circuit occurs
Anomalous event；And when anomalous event occurs for rectifier circuit, controller circuitry makes adjuster circuit reduce or stop supply
Electric current is to field coil.
Based on above-mentioned, the embodiments of the invention provide the guard method of a kind of synchronous rectification generator and rectifier circuit.
When anomalous event occurs for rectifier circuit, adjuster circuit can correspond to adjustment and be supplied to the electric current of field coil (such as to reduce field
The electric current of coil, or stop providing current to field coil).Electric current due to field coil is turned down (even without electric current),
So that the AC energy in power coil portion is also turned down (even zero), thus alternating current generator can be made to stop generating electricity.Therefore exist
When anomalous event occurs for rectifier circuit, the circuit that the embodiment of the present invention is provided can protect rectifier circuit immediately.
For features described above of the invention and advantage can be become apparent, special embodiment below, and it is detailed to coordinate accompanying drawing to make
Carefully it is described as follows.
Brief description of the drawings
Fig. 1 is according to a kind of circuit box schematic diagram of synchronous rectification generator shown by one embodiment of the invention；
Fig. 2 is the flow signal according to a kind of guard method of synchronous rectification generator shown by one embodiment of the invention
Figure；
Fig. 3 is the flow signal according to a kind of guard method of synchronous rectification generator shown by another embodiment of the present invention
Figure；
Fig. 4 is the flow signal according to a kind of guard method of synchronous rectification generator shown by further embodiment of this invention
Figure；
Fig. 5 is the exemplary circuit schematic for illustrating synchronous rectification generator shown in Fig. 1 according to one embodiment of the invention.
Drawing reference numeral explanation：
10：Electronic control unit (ECU)；
20：Battery；
100：Synchronous rectification generator；
110：Rectifier circuit；
111U：U cross streams end；
111V：V cross streams end；
111W：W cross streams end；
112UU：U phase upper switch；
112LU：U phase lower switch；
112UV：V phase upper switch；
112LV：V phase lower switch；
112UW：W phase upper switch；
112LW：W phase lower switch；
120：Alternating current generator；
121：Field coil；
122：Power coil portion；
122U：U phase coils；
122V：V phase coils；
122W：W phase coils；
123：First common node；
130：Adjuster circuit；
131：Switch；
132：Diode；
133：Adjuster control circuit；
140：Controller circuitry；
B+：Power end；
GND：Earth terminal；
LIN：Control terminal；
PS：Phase signal；
S230~S250, S450, S510~S560：Step.
Embodiment
It can refer in " coupling (or connection) " word of this case specification in full used in (including claims) any
Direct or indirect connection means.For example, should if described in the text first device coupling (or connection) is in second device
Be construed as the first device and can be directly connected to the second device, or the first device can pass through other devices or certain
Plant connection means and be coupled indirectly to the second device.In addition, all possible parts, using identical in drawings and the embodiments
Element/component/step of label represents same or like part.Identical label is used in different embodiments or uses identical term
Element/component/step can be with cross-referenced related description.
Fig. 1 is according to a kind of circuit box schematic diagram of synchronous rectification generator 100 shown by one embodiment of the invention.Together
Step rectifying electric-generator 100 can produce according to the control of electronic control unit (Electronic Control Unit, ECU) 10
Raw direct current energy.This direct current energy can be stored in battery 20.According to design requirement, synchronous rectification generator 100 is produced
Raw direct current energy can also supply electricity to one or more load circuit (not shown).In the embodiment shown in fig. 1, synchronous rectification is sent out
Motor 100 includes rectifier circuit 110, alternating current generator 120, adjuster circuit 130 and controller circuitry 140.Controller electricity
Road 140 is electrically connected to rectifier circuit 110 and adjuster circuit 130.Controller circuitry 140 can control rectifier circuit 110
Rectifying operation.In some apply situation, adjuster circuit 130 can be referred to as rotor control respectively with controller circuitry 140
Device (rotor controller) processed and Stator controller (stator controller).
Fig. 2 is the flow signal according to a kind of guard method of synchronous rectification generator shown by one embodiment of the invention
Figure.Fig. 1 and Fig. 2 are refer to, alternating current generator 120 converts mechanical energy into AC energy.Alternating current generator 120 has field coil
121 with power coil portion 122.When electric current is by field coil 121, field coil 121 can provide magnetic field and give power coil portion
122.Field coil 121 and the one of which of power coil portion 122 are rotor coil, and field coil 121 and power coil portion 122 are wherein
Another one be stator coil.For example (but not limited to), field coil 121 can be rotor coil, and power coil portion
122 can be stator coil.When mechanical energy has driven field coil 121 to be rotated with the one of which of power coil portion 122, generating line
Circle portion 122 can produce AC energy to rectifier circuit 110.Therefore, alternating current generator 120 can convert mechanical energy into friendship
Flow electric energy.Rectifier circuit 110 is electrically connected to power coil portion 122.Rectifier circuit self power generation in 110 future coil portion 122
AC energy is converted to direct current energy, and direct current energy is supplied into battery 20.
Adjuster circuit 130 is electrically connected to power coil portion 122, and caused phase is operated to detect alternating current generator 120
Position signal PS.Adjuster circuit 130 is electrically connected to rectifier circuit 110, to detect direct current energy.Adjuster circuit 130 is electrically connected
It is connected to field coil 121.In step S230, adjuster circuit 130 can provide electric current using the direct current energy of battery 20
To field coil 121.The direct current energy exported according to phase signal PS with rectifier circuit 110, adjuster circuit 130 is in step
The electric current for adjusting field coil 121 can be corresponded in S230.The electric current of field coil 121 can be influenceed produced by power coil portion 122
AC energy.
In an embodiment of the present invention, rectifier circuit 110 will be detected anomalous event (step S240) whether occurs, different
Ordinary affair part for example may include excess temperature (over-temperature) event, overcurrent (over-current) event or overvoltage
(over-voltage) event).In step s 250, when anomalous event occurs for rectifier circuit 110, adjuster circuit 130
The electric current of corresponding adjustment field coil 121, such as the electric current of field coil 121 is reduced, or stop providing current to field coil 121.
Being turned down due to the electric current of field coil 121 does not have electric current even, and alternating current generator 120 can be made to stop generating electricity, and then prevents
Rectifier circuit 110 anomalous event generation after still continued operation and caused by damage.
Fig. 3 is the flow signal according to a kind of guard method of synchronous rectification generator shown by another embodiment of the present invention
Figure.Step S230 shown in Fig. 3 is referred to the related description of step S230 shown in Fig. 2 and S240 with S240 and analogized, therefore no longer
Repeat.Fig. 1 and Fig. 3 are refer to, controller circuitry 140 can detect whether rectifier circuit 110 occurs anomalous event (step
S240).When anomalous event occurs for rectifier circuit 110, controller circuitry 140 immediately notifies/controlled to adjust device circuit
130, adjuster circuit 130 is reduced or is stopped supplying current to field coil 121.In the embodiment shown in fig. 1, rectifier circuit
The detection of 110 generation anomalous events and notice can for example be performed by controller circuitry 140, but be not limited to this.In other realities
Apply in example, the detection of the anomalous event and informing function actually also may be implemented in any electricity of synchronous rectification generator 100
In the framework of road.For example, by the detection of the anomalous event and informing function configuration in electrical connection rectifier circuit 110 and adjuster
Any circuit unit of circuit 130, when detecting that anomalous event occurs for rectifier circuit 110, to notify the adjuster circuit
130 reduce or stop supplying current to the field coil 121.
The executive mode that the adjuster circuit 130 stops victualling yard coil current for example may include：By turning off the regulation
One between device circuit 130 and the field coil 121 switchs (not shown) and stops supplying current to field coil 121.It is in addition, of the invention
It is another to propose in a manner of controller circuitry 140 interferes alternating current generator 120 to operate caused phase signal PS, to make adjuster
Circuit 130 reduces or stops supplying current to the technical scheme of the field coil 121, describes in detail as follows.
Fig. 1 and Fig. 3 are refer to, whether controller circuitry 140 can occur anomalous event according to rectifier circuit 110, and
To determination be made whether interferometric phase signal PS.When step S240 judges that anomalous event occurs for rectifier circuit 110, controller electricity
Road 140 immediately carries out step S450.In step S450, controller circuitry 140 can immediately interferometric phase signal PS, with
Adjuster circuit 130 is set to reduce or stop supplying current to field coil 121.For example (but not limited to), controller circuitry
140 can be pulled down to phase signal PS a certain preset range, so that adjuster circuit 130 reduces or stops supplying current to field
Coil 121.
Fig. 4 is the flow signal according to a kind of guard method of synchronous rectification generator shown by further embodiment of this invention
Figure.Fig. 1 and Fig. 4 are refer to, controller circuitry 140 is electrically connected to rectifier circuit 110 and adjuster circuit 130.In step
In S510, controller circuitry 140 can control the rectifying operation of rectifier circuit 110.In step S520, controller circuitry 140
It can detect whether rectifier circuit 110 occurs anomalous event.According to design requirement, the anomalous event can for example include
Warm (over-temperature) event, overcurrent (over-current) event or overvoltage (over-voltage) event.
Anomalous event whether occurs according to the rectifier circuit 110, controller circuitry 140 can be to determination be made whether in step S520
Interferometric phase signal PS.
When rectifier circuit 110 is there occurs during anomalous event, controller circuitry 140 understands immediately interferometric phase signal PS
(step S530).Because phase signal PS is interfered (such as dragging down phase signal PS), adjuster circuit 130 just accordingly subtracts
Less or stop supplying current to field coil 121 (step S540).For example, when anomalous event occurs for rectifier circuit 110,
Phase signal PS voltage quasi position accordingly can be pulled down to preset range by controller circuitry 140, so that adjuster circuit 130
Stop (or reduction) and supply current to field coil 121.The preset range can determine according to design requirement.It is for example, described
Preset range can be " being less than 1 volt " or " ground voltage level ".The electric current of field coil 121 can influence power coil portion
AC energy caused by 122.Therefore rectifier circuit 110 is sent to by interferometric phase signal PS, power coil portion 122
AC energy can immediately be turned down and (even set to zero).
Controller circuitry 140 can check whether rectifier circuit 110 occurs anomalous event again in step S550.
When anomalous event not yet releases, controller circuitry 140 understands step S530, step S540 and step S550 again.Work as rectification
Device circuit 110 is without (such as temperature is dropped in rated range) when occurring anomalous event, the not interferometric phase of controller circuitry 140
Signal PS (step S560).Therefore, when anomalous event occurs for rectifier circuit 110, controller circuitry 140 can immediately be prevented
The only damage of rectifier circuit 110.
Fig. 5 is the exemplary circuit schematic for illustrating synchronous rectification generator shown in Fig. 1 100 according to one embodiment of the invention.
Embodiment illustrated in fig. 5 can be used as vehicle alternator and its regulation circuit.As shown in figure 5, alternating current generator 120 contains
Rotor coil (such as field coil 121) and stator coil (such as power coil portion 122).In the embodiment shown in fig. 5, generating line
Circle portion 122 includes U phase coil 122U, V phase coil 122V and W phase coils 122W.U phase coils 122U first end and the second end point
The first common node 123 and the U cross streams end 111U of rectifier circuit 110 are not electrically connected to.V phase coils 122V first end with
Second end is respectively electrically connected to the first common node 123 and the V cross streams end 111V of rectifier circuit 110.W phase coils 122W's
First end is respectively electrically connected to the first common node 123 and the W cross streams end 111W of rectifier circuit 110 with the second end.Work as electricity
When stream passes through field coil 121, and when the internal combustion engine (not shown) of automobile drives field coil 121 to rotate, this field coil 121 is
Rotating excitation field can be produced.U phase coils 122U, V phase coil 122V and W phase coils 122W will cut the magnetic force of this rotating excitation field
Line, and then produce U cross streams end 111U, V cross streams end 111V and W cross streams of the threephase AC electric energy to rectifier circuit 110
Hold 111W.
Rectifier circuit 110 receives the threephase AC electric energy from alternating current generator 120.Rectifier circuit 110 will come from
The threephase AC electric energy in power coil portion 122 is converted to direct current energy, and by direct current energy via the first DC voltage output end
(such as earth terminal GND) is supplied to battery 20 with the second DC voltage output end (such as power end B+).It is worth noting that,
This battery 20 can also provide direct current energy to adjuster circuit 130 via power end B+ and earth terminal GND.
In the embodiment shown in fig. 5, rectifier circuit 110 includes U phase upper switch 112UU, U phase lower switch 112LU, V phases
Upper switch 112UV, V phase lower switch 112LV, W phase upper switch 112UW and W phase lower switch 112LW.U phase upper switch 112UU, V
Phase upper switch 112UV and W phase upper switch 112UW first end is jointly electrically connected to the second direct current of synchronous rectification generator 100
Voltage output end (such as power end B+).The first of U phase lower switch 112LU, V phase lower switch 112LV and W phase lower switch 112LW
End is jointly electrically connected to the first DC voltage output end (such as earth terminal GND) of synchronous rectification generator 100.U phase upper switch
112UU and U phase lower switch 112LU the second end is jointly electrically connected to the U cross streams end 111U of rectifier circuit 110.Opened in V phases
The second end for closing 112UV and V phase lower switch 112LV is jointly electrically connected to the V cross streams end 111V of rectifier circuit 110.In W phases
Switch 112UW and W phase lower switch 112LW the second end is jointly electrically connected to the W cross streams end 111W of rectifier circuit 110.Control
Device circuit 140 processed can control U phase upper switch 112UU, U phase lower switch 112LU, V phase upper switch 112UV, V phase lower switch
112LV, W phase upper switch 112UW and W phase lower switch 112LW, to control the rectifying operation of rectifier circuit 110.
In the embodiment shown in fig. 5, adjuster circuit 130 includes switch 131, diode 132 and adjuster control electricity
Road 133.First DC voltage output end that the first end of switch 131 is electrically connected to synchronous rectification generator 100 (such as is grounded
Hold GND), and the second end of switch 131 is electrically connected to the first end of field coil 121.The anode of diode 132 is connected to field coil
121 first end and the second end of switch 131, and the negative electrode of diode 132 is electrically connected to the second end of field coil 121.Regulation
Device control circuit 133 is electrically connected to the first DC voltage output end (such as earth terminal GND) of synchronous rectification generator 100 and the
Two DC voltage output ends (such as power end B+), to detect the voltage for the direct current energy that synchronous rectification generator 100 is exported
Level.Adjuster control circuit 133 is also electrically connected to power coil portion 122, to detect phase signal PS.Phase signal PS can come
From in any of which phase of the stator coil U phase coils, V phase coils or W phase coils, the present embodiment with from W phase coils
Exemplified by.According to phase signal PS, and the direct current energy exported according to synchronous rectification generator 100 voltage quasi position (such as
Power end B+ voltage quasi position), adjuster control circuit 133 can correspond to the conducting state of controlling switch 131.Switch 131
Conducting state may decide that the magnitude of current by field coil 121, and then adjust AC energy caused by power coil portion 122.
In addition, adjuster control circuit 133 can also receive electronic control unit via the control terminal LIN of synchronous rectification generator 100
10 control command.Adjuster control circuit 133 can produce corresponding direct current according to the control of electronic control unit 10
Energy.The implementation detail of adjuster control circuit 133 can determine according to design requirement.Such as in certain embodiments, it is existing
Adjuster control circuit or other control circuits can be employed to achieve adjuster control circuit 133, therefore adjuster controls
The details of operation of circuit 133 repeats no more.
In addition, controller circuitry 140 can also detect whether rectifier circuit 110 occurs anomalous event.Citing comes
(but not limited to) is said, according to design requirement, one or more temperature-sensitive sticker (not shown) can be configured in U phase upper switch
Opened under 112UU, U phase lower switch 112LU, V phase upper switch 112UV, V phase lower switch 112LV, W phase upper switch 112UW and W phase
Close near 112LW one of which or more persons.The implementation detail of one or more of temperature-sensitive sticker (not shown) can be according to
Determined according to design requirement.Such as in certain embodiments, existing temperature-sensitive sticker or other temperature-sensitive stickers can be adopted
For realizing one or more of temperature-sensitive sticker (not shown), therefore repeat no more.Controller circuitry 140 can be via described
One or more temperature-sensitive sticker (not shown) detect U phase upper switch 112UU, U phase lower switch 112LU, V phase upper switch
Whether 112UV, V phase lower switch 112LV, W phase upper switch 112UW and W phase lower switch 112LW one of which or more persons occurred
Warm event (anomalous event).
In further embodiments, one or more current sensor (not shown) can be configured in U phase upper switch
Opened under 112UU, U phase lower switch 112LU, V phase upper switch 112UV, V phase lower switch 112LV, W phase upper switch 112UW and W phase
In the current path for closing 112LW one of which or more persons.The implementation detail of one or more of current sensor (not shown)
It can be determined according to design requirement.Such as in certain embodiments, existing current sensor or other current sensors can
To be employed to achieve one or more of current sensor (not shown), therefore repeat no more.Controller circuitry 140 can be through
Opened by one or more of current sensor (not shown) to detect in U phase upper switch 112UU, U phase lower switch 112LU, V phases
Close 112UV, V phase lower switch 112LV, W phase upper switch 112UW and W phase lower switch 112LW one of which or whether more persons occur
Overcurrent event (anomalous event).
In one embodiment, controller circuitry 140 is electrically connected to adjuster circuit 130.When rectifier circuit 110 is not sent out
During raw anomalous event, controller circuitry 140 is without any abnormal notification action.Therefore, adjuster control circuit 133 is able to just
Often running.When rectifier circuit 110 is there occurs during anomalous event, controller circuitry 140 can notify adjuster circuit 130, make tune
The controlling switch 131 of section device control circuit 133 supplies current to field coil 121 to reduce or stop so that power coil portion 122 passes
Giving the AC energy of rectifier circuit 110 can immediately be turned down and (even be set to zero).
In another embodiment, for example detecting rectifier circuit 110 anomalous event can occur for controller circuitry 140
When, immediately interferometric phase signal PS.For example (but not limited to), the power coil portion 122 may include to export the phase
Signal PS first end, the adjuster circuit 130 include receiving phase signal PS the second end, and the controller circuitry 140 can
The first end or second end, or any node being electrically connected between the first end and second end are electrically connected to, with this
When the anomalous event occurs for rectifier circuit 110, interfere phase signal PS.When anomalous event occurs for rectifier circuit 110,
Phase signal PS can be pulled down to preset range by controller circuitry 140 via a resistance (not shown) is set.It is described default
Scope can determine according to design requirement.For example, the preset range can be " being less than 1 volt " or " ground voltage is accurate
Position ".When phase signal PS voltage quasi position falls into the preset range, adjuster control circuit 133 is by turning off (turn
Off 131) are switched and stops supplying current to field coil 121.Because adjuster circuit 130 stops supplying current to field coil
121 so that the AC energy that power coil portion 122 sends rectifier circuit 110 to can immediately be turned down and (is even adjusted to
Zero).Therefore, when anomalous event occurs for rectifier circuit 110, controller circuitry 140 can immediately prevent rectifier circuit
110 damage.
According to design requirement, controller circuitry 140 is from " interferometric phase signal PS " is returned to " not interferometric phase signal PS "
Mechanism can have several different ways.For convenience of explanation, the anomalous event bag of rectifier circuit 110 is it will be assumed herein
Include excess temperature event.The processing method of other anomalous events is referred to the related description of excess temperature event and analogized, therefore no longer superfluous
State.
For example, in certain embodiments, when the temperature of rectifier circuit 110 is faced between the first critical-temperature and second
Between boundary's temperature when (such as between 180 degree Celsius and 200 degree), controller circuitry 140 is accordingly by under phase signal PS
Draw and be held in a certain preset range up to one section it is default during (such as phase signal PS be pulled down to ground voltage level and kept
5 seconds) so that adjuster circuit 130 in during this is default (such as in 5 seconds) stops supplying current to field coil 121.Herein
After default period terminates, controller circuitry 140 can stop interferometric phase signal PS, therefore adjuster circuit 130 is recovered
Normal operation.
In further embodiments, when the temperature of rectifier circuit 110 is more than first critical-temperature and described second
During critical-temperature (such as higher than 215 degree Celsius, positive 30 degree of negative error), controller circuitry 140 permanently can believe phase
Number PS is held in the preset range (such as being held in ground voltage level).
In some other embodiments, when the temperature of rectifier circuit 110 is between first critical-temperature and described second
When between critical-temperature, phase signal PS is accordingly pulled down to a certain preset range and is kept for one section in advance by controller circuitry 140
If period.After terminating during presetting herein, controller circuitry 140 can stop interferometric phase signal PS, therefore adjuster circuit
130 are able to recover normal operation.In the case where the factor for causing anomalous event not yet excludes, recover in adjuster circuit 130
After normal operation, the very possible rise abnormal again of temperature of rectifier circuit 110, and then cause controller circuitry 140 again
Interferometric phase signal PS.Controller circuitry 140 can count " the interferometric phase signal PS " of controller circuitry 140 interference time
Number.When this interference number is more than a certain critical number, phase signal PS permanently can be held in by controller circuitry 140
Preset range (such as being held in ground voltage level).The critical number can determine according to design requirement, such as by institute
Critical number is stated to be arranged to 10 times.
Embodiment illustrated in fig. 5 is using the running of threephase alternator as illustrative example.According to design requirement, the present invention
The polyphase ac hair that can be applied to more than other kinds of vehicle alternator, such as six cross streams generators or other three-phases
Motor.
It is worth noting that, in different application situations, adjuster control circuit 133 and/or controller circuitry 140
Correlation function can utilize in general hardware description language (hardware description languages, such as Verilog
HDL or VHDL) or other suitable programming languages be embodied as software or hardware.The software that can perform the correlation function can be with
Medium (computer-accessible medias), such as tape can be accessed by being arranged to any of computer
(magnetic tapes), semiconductor (semiconductors) memory, disk (magnetic disks) or CD
(compact disks, such as CD-ROM or DVD-ROM), or internet (Internet), wire communication (wired can be passed through
Communication), radio communication (wireless communication) or other communication medias transmit the software.Institute
The accessing in medium of computer can be stored in by stating software.In addition, apparatus and method of the present invention can by hardware and
The combination of software is realized.
In summary, the synchronous rectification generator 100 and its guard method that all embodiments of the present invention are provided can detect
Whether rectifier circuit 110 occurs anomalous event.When anomalous event occurs for rectifier circuit 110, controller circuitry 140 can be with
The electric current of the corresponding adjustment field coil 121 of adjuster circuit 130 is set (such as to reduce the electric current of field coil 121, or stop providing electricity
Flow to field coil 121).Electric current due to field coil 121 is turned down (even without electric current) so that power coil portion 122
AC energy is also turned down (even zero).Therefore when anomalous event occurs for rectifier circuit 110, the embodiment of the present invention is carried
The circuit of confession can protect rectifier circuit 110 immediately.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (12)
1. a kind of synchronous rectification generator, it is characterised in that the synchronous rectification generator includes：
Alternating current generator, there is field coil and power coil portion, to convert mechanical energy into AC energy；
Rectifier circuit, the power coil portion is electrically connected to, the AC energy is converted into direct current energy；
Adjuster circuit, the rectifier circuit is electrically connected to detect the direct current energy, and be electrically connected to the field wire
Enclose to adjust the electric current of the field coil；And
Controller circuitry, the rectifier circuit and the adjuster circuit are electrically connected to, to control the rectifier circuit
Rectifying operation and the detection rectifier circuit whether anomalous event occurs, wherein described in occurring when the rectifier circuit
During anomalous event, the controller circuitry makes the adjuster circuit reduce or stop supplying current to the field coil.
2. synchronous rectification generator according to claim 1, it is characterised in that the anomalous event include excess temperature event,
Overcurrent event or overvoltage event, and the synchronous rectification generator is polyphase alternator.
3. synchronous rectification generator according to claim 1, it is characterised in that when rectifier circuit generation is described different
During ordinary affair part, the controller circuitry makes the adjuster circuit by turning off between the adjuster circuit and the field coil
Switch and stop supplying current to the field coil.
4. synchronous rectification generator according to claim 1, it is characterised in that：
The field coil is rotor coil, and the power coil portion includes multiple stator coils, when the alternating current generator operates
Phase signal is produced, wherein the phase signal comes from any of which phase of the multiple stator coil, and the generating line
Circle portion includes exporting the first end of the phase signal；
The adjuster circuit is electrically connected to the power coil portion to detect the phase signal, wherein the adjuster circuit
The second end including receiving the phase signal, and the adjuster circuit comes according to the phase signal and the direct current energy
Corresponding adjustment is supplied to the electric current of the field coil；And
The controller circuitry is electrically connected between the first end or second end or the first end and second end
Any node, with the rectifier circuit occur the anomalous event when, interfere the phase signal.
5. synchronous rectification generator according to claim 4, it is characterised in that the controller circuitry and the first end
Or there is resistance between second end or any node, and when the anomalous event occurs for the rectifier circuit,
The voltage quasi position of the phase signal is accordingly pulled down to preset range by the controller circuitry.
6. synchronous rectification generator according to claim 5, it is characterised in that the anomalous event includes excess temperature event,
Wherein：
When the temperature of the rectifier circuit is between the first critical-temperature and the second critical-temperature, the controller circuitry
The phase signal is accordingly held in the preset range up to during default, so that this is pre- in described for the adjuster circuit
If reduced in period or stop supplying current to the field coil, and after the default period terminates, the controller electricity
Road stops interfering the phase signal；And
When the temperature of the rectifier circuit is more than first critical-temperature with second critical-temperature, the controller
The phase signal is permanently held in the preset range by circuit.
7. a kind of guard method of synchronous rectification generator, it is characterised in that the synchronous rectification generator includes rectifier electricity
Road, adjuster circuit, controller circuitry and field coil, methods described include：
Detect whether the rectifier circuit occurs anomalous event；And
When the anomalous event occurs for the rectifier circuit, the controller circuitry makes the adjuster circuit reduce or stop
Only supply current to the field coil.
8. according to the method for claim 7, it is characterised in that the anomalous event includes excess temperature event, overcurrent event
Or overvoltage event.
9. according to the method for claim 7, it is characterised in that the adjuster circuit detects the synchronous rectification generator
Phase signal caused by operating, to adjust the electric current for being supplied to the field coil according to the phase signal to correspond to, wherein
It is described adjuster circuit is reduced or is stopped including the step of supplying current to field coil：
The controller circuitry according to the rectifier circuit whether occur the anomalous event and to determination be made whether to interfere institute
State phase signal；And
When the anomalous event occurs for the rectifier circuit, the phase signal is pulled down to default by the controller circuitry
Scope, so that the adjuster circuit reduces or stops supplying current to the field coil.
10. according to the method for claim 9, it is characterised in that when the anomalous event is excess temperature event, the control
The step of device circuit interferometric phase signal, includes：
When the temperature of the rectifier circuit is between the first critical-temperature and the second critical-temperature, the controller circuitry
The phase signal is accordingly held in the preset range up to default period, so that the adjuster circuit is in described default
Reduced in period or stop supplying current to the field coil, and after the default period terminates, the controller circuitry
Stop interfering the phase signal.
11. according to the method for claim 10, it is characterised in that further include the step of the interferometric phase signal：
When the temperature of the rectifier circuit is more than first critical-temperature with second critical-temperature, permanently will
The phase signal is held in the preset range.
12. according to the method for claim 10, it is characterised in that further include the step of the interferometric phase signal：
Count the interference number that the controller circuitry interferes the phase signal；And
When the interference number is more than critical number, the phase signal is permanently held in the preset range.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105118669 | 2016-06-15 | ||
| TW105118669A TWI604684B (en) | 2016-06-15 | 2016-06-15 | Synchronous rectifier alternator and protection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107517026A true CN107517026A (en) | 2017-12-26 |
| CN107517026B CN107517026B (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610803925.9A Expired - Fee Related CN107517026B (en) | 2016-06-15 | 2016-09-06 | Synchronous rectification generator and protection method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107517026B (en) |
| TW (1) | TWI604684B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI674746B (en) * | 2018-05-17 | 2019-10-11 | 朋程科技股份有限公司 | Synchronous rectifier alternator and power allocation method thereof |
| CN111092479A (en) * | 2019-11-20 | 2020-05-01 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Control method of rectifier generator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI722895B (en) * | 2020-05-08 | 2021-03-21 | 國立虎尾科技大學 | Three-phase synchronous rectification control system of generator |
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| TWI674746B (en) * | 2018-05-17 | 2019-10-11 | 朋程科技股份有限公司 | Synchronous rectifier alternator and power allocation method thereof |
| CN111092479A (en) * | 2019-11-20 | 2020-05-01 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Control method of rectifier generator |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201743546A (en) | 2017-12-16 |
| TWI604684B (en) | 2017-11-01 |
| CN107517026B (en) | 2020-06-23 |
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