CN107577328A - A kind of electric power controller and method for managing power supply suitable for SVG control chips - Google Patents
A kind of electric power controller and method for managing power supply suitable for SVG control chips Download PDFInfo
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Abstract
The invention discloses a kind of electric power controller and method for managing power supply suitable for SVG control chips.The electric power controller includes central processing unit, PWM control modules, N number of power supply module, and N is the integer more than or equal to 1；Central processing unit is connected with N number of power supply module, PWM control modules respectively；Central processing unit sends power supply module enable signal to power supply module；Power supply module sends power-on reset signal to central processing unit；Central processing unit detects the working condition of electric power controller, and sends interrupt signal in electric power controller operation irregularity and give PWM control modules；PWM control modules send the safe power-off signals of PWM to central processing unit after turning off IGBT according to interrupt signal；Transmission power-off reset signal gives SVG control chips after central processing unit receives the safe power-off signals of PWM.The present invention effectively reduces abnormity of power supply and resets the risk for causing IGBT to damage by PWM control module safety shutdown IGBT.
Description
Technical field
The present invention relates to technical field of power management, more particularly to a kind of power management suitable for SVG control chips to fill
Put and method for managing power supply.
Background technology
Static state reactive generator (static var generator, abbreviation SVG), also known as dynamic passive compensation fills
Put, or STATCOM, be a kind of electric semiconductor bridge-type current transformer by from commutation to carry out dynamic passive compensation
Device.The operation principle of static state reactive generator is：Using power electronic devices (such as IGBT, Insulated Gate can be turned off
Bipolar Transistor, insulated gate bipolar transistor) form from bridge circuit is changed, it is connected in parallel on power network by reactor
On, the amplitude and phase of bridge circuit AC output voltage are suitably adjusted, or its ac-side current is directly controlled, rapidly
Absorb or send required reactive power, realize the purpose of quick dynamic regulation reactive power.
In recent years, SVG control chips are more and more extensive is applied to power network and power consumer end, steady for improving line voltage
Qualitative, improvement custom power quality, save electric energy.During the electric power controller exception of SVG control chips, SVG control chips are straight
IGBT abnormal shutdowns can be caused by tapping into row power-off reset, and then add the risk that SVG control chips are damaged.
The content of the invention
First purpose of the invention aims to provide a kind of electric power controller suitable for SVG control chips, can be effective
Reduce abnormity of power supply and reset the risk for causing IGBT to damage.
In order to realize first purpose of the present invention, this invention takes following technical scheme：
A kind of electric power controller suitable for SVG control chips, including central processing unit, wherein N number of power supply module, N
For the integer more than or equal to 1；The central processing unit is bi-directionally connected with N number of power supply module respectively；The central processing unit is to confession
Electric module sends power supply module enable signal；The power supply module sends power-on reset signal to central processing unit, and its feature exists
In：The electric power controller also includes PWM control modules；The PWM control modules are connected with central processing unit；The center
Processor detects that interrupt signal is sent during electric power controller operation irregularity gives PWM control modules；The PWM control modules root
IGBT is turned off according to interrupt signal, and the safe power-off signals of PWM are sent to central processing unit after IGBT is turned off；The central processing
Transmission power-off reset signal gives SVG control chips after device receives the safe power-off signals of PWM.
Further, while the central processing unit sends power supply module enable signal, send power supply domain separation and enable
Signal is to power supply module；After the power supply module receives power supply module enable signal, receive input power and carry out electricity, concurrently
Power-on reset signal is sent to send out-put supply to central processing unit and give SVG control chips；The power supply module module receives electricity
After source domain isolation enable signal, send power supply domain separation enable signal and give SVG control chips；The central processing unit receives N
After individual power-on reset signal, release is sent to the power supply domain separation enable signal of power supply module.
Further, the out-put supply that power supply or power supply module of the input power from SVG control chips are sent.
Further, the power supply module includes POR modules；The POR modules are bi-directionally connected with central processing unit；It is described
After POR modules receive power supply module enable signal, receive input power and carry out electricity, concurrently send power-on reset signal to center
Processor.
Further, the power supply module also includes out-put supply module；The out-put supply module and central processing unit
It is bi-directionally connected；After the out-put supply module receives the power supply module enable signal of central processing unit output, input electricity is received
It is electric on source, and send out-put supply and give SVG control chips.
Further, the out-put supply module uses LDO or DC-DC converter.
Further, the power supply module also includes level shift module；The level shift module and central processing unit
Connected with out-put supply module；The central processing unit sends power supply domain separation enable signal to level displacement circuit；It is described defeated
Go out power module and send out-put supply to level displacement circuit；The level displacement circuit sends power domain isolation signals to SVG
Control chip.
Further, the power supply module also includes detection module；The detection module is bi-directionally connected with central processing unit；
After the detection module detection receives the power supply module enable signal of central processing unit output, electricity on input power is received, and
Detection parameters are sent to central processing unit；The central processing unit receives detection parameters exception, i.e. power supply module operation irregularity
When, interrupt signal is sent to central processing unit.
Further, the detection module includes over-current detection module, low power testing module；The over-current detection module,
Low power testing module is bi-directionally connected with central processing unit；The central processing unit sends power supply module enable signal to over-current detection
Module, low power testing module；The over-current detection module sends over-current signal to central processing unit；The low power testing module hair
Low electric signal is sent to central processing unit.
Further, the electric power controller also includes temperature detecting module；The temperature detecting module and centre
Manage device connection；The temperature of the temperature detecting module detection electric power controller, and it is sent to central processing unit；The power supply pipe
When managing the temperature anomaly of device, central processing unit sends interrupt signal to central processing unit.
Further, the electric power controller also includes standby module；The input of the standby module controls with SVG
The power supply connection of chip；The output end of the standby module is connected with central processing unit and power supply module respectively；The standby mould
Block sends reference voltage and bias current to power supply module respectively；The standby module sends standby power, standby clock, standby
Power supply OK signals, standby clock OK signals, reference voltage OK signals are to central processing unit；The central processing unit detects standby
Module output standby power OK signals, standby clock OK signals, reference voltage OK signals when, send power supply module enable signal
To individual power supply module.
Further, the standby module include standby power module, standby clock generator, reference voltage circuit, partially
Put current circuit；The standby power module, standby clock generator, reference voltage circuit, the input of bias current circuit
The power supply with SVG control chips is connected respectively；The standby power module, the output end of standby clock generator respectively with center
Processor connects；The reference voltage circuit, the output end of bias current circuit connect with central processing unit and power supply module respectively
Connect.
Further, the interrupt signal that the central processing unit exports to PWM control modules is not maskable interrupt signal.
Second purpose of the invention aims to provide a kind of method for managing power supply suitable for SVG control chips, can be effective
Reduce abnormity of power supply and reset the risk for causing IGBT to damage.
In order to realize second purpose of the invention, this invention takes following technical scheme：
A kind of method for managing power supply of electric power controller suitable for SVG control chips, it is characterised in that：Comprising following
Step：
(2-1) central processing unit sends power supply module enable signal and power supply domain separation enable signal to N number of power supply respectively
Module；
After (2-2) power supply module receives power supply module enable signal, electricity on input power is received, upper electricity is sent after upper electricity
Reset signal sends out-put supply and gives SVG control chips to central processing unit；Power supply module receives the enabled letter of power supply domain separation
After number, send power domain isolation signals and give SVG control chips；
(2-3) central processing unit receives the power-on reset signal of N number of power supply module output, i.e., N number of power supply module is whole
When electric in completion, into step (2-4)；Central processing unit does not receive whole power-on reset signals of N number of power supply module output,
And when not receiving N number of power-on reset signal after the T1 that waits for a period of time yet, central processing unit will be not detected by corresponding upper electricity
The power supply module of reset signal is designated as anomalous event, return to step (2-1)；
(2-4) central processing unit discharges the power supply domain separation enable signal for being sent to power supply module, power supply module release hair
Give the power domain isolation signals of SVG control chips；Electric power controller is SVG control chip normal power supplies；
When (2-5) central processing unit is not detected by electric power controller operation irregularity, return to step (2-4)；Central processing
When device detects electric power controller operation irregularity, into step (2-6)；
(2-6) central processing unit exports interrupt signal and gives PWM control modules；PWM control modules turn off IGBT, and in IGBT
IGBT safe shutdown signals are sent after safe shutdown to central processing unit；
(2-7) central processing unit detects the IGBT safe shutdown signals of PWM control modules output, into step (2-8)；
Central processing unit is not detected by the IGBT safe shutdown signals of PWM control modules output, return to step (2-6), and is waiting one
When being still not detected by IGBT safe shutdown signals after section time T2, into step (2-8)；
After (2-8) central processing unit sends power-off reset signal to SVG control chips, power supply module, return to step are closed
(2-1)。
Further, in the step (2-5), electric power controller operation irregularity includes over-current detection module, low electric-examination
Survey module and temperature detecting module detects anomaly parameter.
Further, in the step (2-6), the interrupt signal of central processing unit output is not maskable interrupt signal.
Further, the method for managing power supply is before step (2-1), in addition to standby module energizing step；It is described
Standby module energizing step comprises the following steps：
It is electric on (1-1) standby module；
(1-2) standby module sends standby power, standby clock, standby power OK signals, standby clock OK signals, reference
Voltage OK signals send reference voltage, bias current to N number of power supply module to central processing unit；
(1-3) central processing unit detects standby power OK signals, standby clock OK signals, reference voltage OK signals, enters
Enter step (2-1)；Central processing unit is not detected by standby power OK signals, standby clock OK signals, reference voltage OK signals, returns
Return step (1-2)；
Under conditions of standby module energizing step is performed, in step (2-8), central processing unit sends power-off reset signal
After SVG control chips, power supply module, return to step (1-1) are closed.
Beneficial effect of the present invention：
From above technical scheme, the present invention sends interrupt signal by central processing unit and gives PWM control modules, then
PWM control modules turn off IGBT according to interrupt signal, and send the safe power-off signals of PWM to central processing after IGBT shut-offs
Device, last central processing unit only just send power-off reset signal after the safe power-off signals of PWM are received and control core to SVG
Piece, safety shutdown IGBT, effectively reduce abnormity of power supply and reset the risk for causing IGBT to damage.Meanwhile the present invention passes through center
Processor sends power supply domain separation enable signal and sends power domain isolation signals to each power supply module, power supply module and controlled to SVG
Chip, realize that the circuit being operated in SVG control chips under different electrical power domain is effectively isolated isolation in power up, avoid
The upper electricity part driving of SVG control chips circuit erroneous action caused by upper electric part in power up.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, simple Jie is done to the required accompanying drawing used in embodiment below
Continue.Drawings in the following description are only the embodiment in the present invention, for one of ordinary skill in the art, are not being paid
On the premise of going out creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the device block diagram of the present invention；
Fig. 2 is power supply module block diagram of the present invention；
Fig. 3 is standby module block diagram of the present invention；
Fig. 4 is flow chart of the method for the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the present invention will be described in detail.
In order that the purpose of the present invention, technical scheme, advantage are more clearly understood, below in conjunction with drawings and Examples to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
As shown in figure 1, a kind of electric power controller suitable for SVG, including central processing unit, standby module, PWM control
Module, power supply module 1, power supply module 2 ... power supply module N, wherein N are the numbers of power supply module in electric power controller, and N is to appoint
Integer (as follows) of the meaning more than or equal to 1.
As shown in figure 1, the input of standby module is connected with chip power, output end and power supply module 1, power supply module
2 ... power supply module N connections, reference voltage and bias current are sent to power supply module 1, power supply module 2 ... power supply module N.It is standby
Module is connected with central processing unit, sends standby power, standby clock, standby power OK signals, standby clock OK signals, reference
Voltage and bias current OK signals are to central processing unit.Central processing unit detects the standby power OK letters of standby module output
Number, send after standby clock OK signals, reference voltage and bias current OK signals power supply module enable signal to power supply module 1,
Power supply module 2 ... power supply module N.
As shown in figure 3, standby module includes standby power, standby clock generator, reference voltage circuit, bias current electricity
Road, under-voltage detection module.
As shown in figure 3, the input of under-voltage detection module is connected with chip power, output end respectively with standby power, treat
The input connection of machine clock generator, reference voltage circuit, bias current circuit, detection chip power supply.
As shown in figure 3, standby power, standby clock generator, reference voltage circuit are connected with central processing unit respectively.Ginseng
Examine potential circuit and bias current circuit to be connected with power supply module n respectively, wherein n=1,2 ... N (as follows).Standby power, treat
Machine clock generator, reference voltage circuit send standby power, standby clock, standby power OK signals, standby clock OK respectively
Signal, reference voltage OK signals are to central processing unit.Reference voltage circuit and bias current circuit send respectively reference voltage and
Bias current gives power supply module n.
When central processing unit is not detected by standby power OK signals, standby clock OK signals, reference voltage OK signals, control
Standby power, standby clock generator, reference voltage circuit resend standby power, standby clock, standby power OK signals,
Standby clock OK signals, reference voltage OK signals control reference voltage circuit and bias current circuit again to central processing unit
Send reference voltage and bias current gives power supply module n, this operation is repeated, until central processing unit detects standby power OK
Signal, standby clock OK signals, reference voltage OK signals.
After central processing unit detects standby power OK signals, standby clock OK signals, reference voltage OK signals, send and supply
Electric module enable signal and power supply domain separation enable signal give power supply module n.Power supply module n receives the enabled letter of power supply module
After number, POR (power on reset, electrification reset) signal n is sent to central processing unit；Out-put supply n is sent to control to SVG
Chip, power supply is provided for SVG control chips.After power supply module n receives power supply domain separation enable signal, power supply domain separation is sent
Signal gives SVG control chips, isolates in SVG control chips, the communication being operated between the circuit under different electrical power domain, prevents
The circuit that the circuit control of not upper electricity has already powered in SVG control chips.
As shown in figure 1, power supply module 1, power supply module 2 ... power supply module N are received after detecting power supply module enable signal
Input power 1, input power 2 ... input power N carry out electricity, and sending por signal 1,2 respectively after the completion of upper electricity ..., N is to center
Processor；And transmission out-put supply 1, out-put supply 2 ... out-put supply N give SVG control chips respectively, are carried for SVG control chips
Power supply source.Central processing unit receives whole por signals 1,2 ... during N, and release is sent to power supply module 1, power supply module 2 ...
Power supply module N power supply domain separation enable signal.Now power supply module 1, power supply module 2 ... power supply module N discharge transmission respectively
To the power domain isolation signals of SVG control chips, electric power controller is SVG control chip normal power supplies.
Central processing unit does not receive whole por signal 1,2 ... N, and after the T1 that waits for a period of time, does not receive yet complete
For the por signal 1,2 ... in portion during N, central processing unit records the power supply module for not sending por signal as abnormal module,
And power supply module enable signal is resend to abnormal module, while power supply domain separation enable signal is kept, realize that SVG controls core
Being effectively isolated between the circuit being operated in piece under different electrical power domain, prevent that not upper electricity part control is in SVG control chips
Upper electric part.This process is repeated, until central processing unit receives whole por signal 1,2 ... N.
As shown in Fig. 2 power supply module n includes POR modules n, out-put supply module n, level shift module n and detection mould
Block n.In this embodiment, detection module n includes over-current detection module n, low power testing module n.
As shown in Fig. 2 POR modules n is bi-directionally connected with central processing unit.POR modules n receives power supply module enable signal
Afterwards, receive input power n and carry out electricity, and send por signal n to central processing unit.In the present embodiment, input power n is adopted
The out-put supply sent with SVG control chips power supply or power supply module 1, power supply module 2 ... power supply module N.
As shown in Fig. 2 out-put supply module n is bi-directionally connected with central processing unit.Out-put supply module n receives centre
After the power supply module enable signal for managing device output, electricity on input power n is received, and send out-put supply n and give SVG control chips.
In the present embodiment, out-put supply module using LDO (low dropout regulator, low pressure difference linear voltage regulator) or
DC-DC converter, DC are direct current abbreviations, represent direct current.
As shown in Fig. 2 level shift module n is connected with central processing unit and out-put supply module n.Central processing unit is sent
Power supply domain separation enable signal gives level displacement circuit n.Out-put supply module n sends out-put supply n and gives level displacement circuit n.
Level displacement circuit sends power domain isolation signals n and gives SVG control chips.
As shown in Fig. 2 over-current detection module n, low power testing module n and central processing unit are bi-directionally connected.Central processing unit
Power supply module enable signal is sent to over-current detection module n, low power testing module n.Over-current detection module n sends over-current signal n
To central processing unit.Low power testing module n sends low electric signal n to central processing unit.
As shown in figure 1, the electric power controller also includes temperature detecting module.Temperature detecting module and central processing unit
Connection.Temperature detecting module detects the temperature of electric power controller, and is sent to central processing unit.The temperature of electric power controller
When abnormal, central processing unit sends interrupt signal to central processing unit.
As shown in figure 1, the operation of central processing unit monitoring electric power controller working condition is as follows：Central processing unit is not examined
Measure power supply module 1, power supply module 2 ... power supply module N output overcurrents signal 1,2 ... N or low electric signals 1,2 ... N or temperature inspection
When surveying module output abnormality temperature, power supply module 1, power supply module 2 ... power supply module N continue to provide out-put supply 1, out-put supply
2 ... out-put supply N give SVG control chips, and SVG control chips are in normal operating conditions；Central processing unit detects power supply mould
Block 1, power supply module 2 ... power supply module N output overcurrents signal 1,2 ... N or low electric signals 1,2 ... N or temperature detecting module output
When abnormal temperature or SVG control chip output abnormality power supplys, central processing unit sends interrupt signal and gives PWM control modules.At this
In embodiment, the interrupt signal that central processing unit is sent to PWM control modules uses not maskable interrupt signal.
As shown in figure 1, SVG control chips are in abnormity of power supply power-off reset, in safe shutdown PWM, IGBT operation is such as
Under：PWM control modules turn off IGBT after receiving the interrupt signal of central processing unit output；After PWM control modules shut-off IGBT
PWM safe shutdown signals are sent to central processing unit；After central processing unit receives PWM safe shutdown signals, PDR is sent
(power down reset, power-off reset) signal gives SVG control chips, and turns off power supply module 1, power supply module 2 ... power supply
Module N, standby module re-power；When central processing unit does not receive PWM safe shutdown signals, central processing unit is resend
Interrupt signal gives PWM control modules, if not receiving PWM safe shutdown signals, central processing yet after the T2 that waits for a period of time
Device directly transmits PDR signals and gives SVG control chips.
As shown in figure 4, a kind of method for managing power supply suitable for SVG, is comprised the steps of：
It is electric on (1-1) standby module；
(1-2) standby module sends standby power, standby clock, standby power OK signals, standby clock OK signals, reference
Voltage OK signals send reference voltage, bias current to N number of power supply module to central processing unit；
(1-3) central processing unit detects standby power OK signals, standby clock OK signals, reference voltage OK signals, enters
Enter step (2-1)；Central processing unit is not detected by standby power OK signals, standby clock OK signals, reference voltage OK signals, returns
Return step (1-2)；
(2-1) central processing unit sends power supply module enable signal and power supply domain separation enable signal to N number of power supply respectively
Module；
After (2-2) power supply module receives power supply module enable signal, electricity on input power is received, upper electricity is sent after upper electricity
Reset signal sends out-put supply and gives SVG control chips to central processing unit；Power supply module receives the enabled letter of power supply domain separation
After number enable signal, send power domain isolation signals and give SVG control chips；
(2-3) central processing unit receives the power-on reset signal of N number of power supply module output, i.e., N number of power supply module is whole
When electric in completion, into step (2-4)；Central processing unit does not receive whole power-on reset signals of N number of power supply module output,
And when not receiving N number of power-on reset signal after the T1 that waits for a period of time yet, central processing unit will be not detected by corresponding upper electricity
The power supply module of reset signal is designated as anomalous event, return to step (2-1)；
(2-4) central processing unit discharges the power supply domain separation enable signal for being sent to power supply module, power supply module release hair
Give the power domain isolation signals of SVG control chips；Electric power controller is SVG control chip normal power supplies；
When (2-5) central processing unit is not detected by electric power controller operation irregularity, return to step (2-4)；Central processing
When device detects electric power controller operation irregularity, into step (2-6)；
(2-6) central processing unit exports interrupt signal and gives PWM control modules；PWM control modules turn off IGBT, and in IGBT
IGBT safe shutdown signals are sent after safe shutdown to central processing unit；
(2-7) central processing unit detects the IGBT safe shutdown signals of PWM control modules output, into step (2-8)；
Central processing unit is not detected by the IGBT safe shutdown signals of PWM control modules output, return to step (2-6), and is waiting one
When being still not detected by IGBT safe shutdown signals after section time T2, into step (2-8)；
(2-8) central processing unit sends power-off reset signal and gives SVG control chips, is then shut off power supply module, returns to step
Suddenly (1-1).
In the present embodiment, it is by stopping sending power supply module enable signal to confession that central processing unit, which closes power supply module,
Electric module.
In the present embodiment, electric power controller operation irregularity includes over-current detection module, low power testing module and temperature
Degree detection module detects anomaly parameter.
In the present embodiment, the interrupt signal of central processing unit output is not maskable interrupt signal.
Described above is only the preferred embodiments of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (17)
1. a kind of electric power controller suitable for SVG control chips, including central processing unit, wherein N number of power supply module, N are
Integer more than or equal to 1；The central processing unit is bi-directionally connected with N number of power supply module respectively；The central processing unit is to power supply
Module sends power supply module enable signal；The power supply module sends power-on reset signal to central processing unit, it is characterised in that：
The electric power controller also includes PWM control modules；The PWM control modules are connected with central processing unit；The centre
Reason device detects that interrupt signal is sent during electric power controller operation irregularity gives PWM control modules；The PWM control modules according to
Interrupt signal turns off IGBT, and sends the safe power-off signals of PWM to central processing unit after IGBT is turned off；The central processing unit
Transmission power-off reset signal gives SVG control chips after receiving the safe power-off signals of PWM.
2. electric power controller according to claim 1, it is characterised in that：The central processing unit, which sends power supply module, to be made
While energy signal, power supply domain separation enable signal is sent to power supply module；The power supply module receives power supply module and enabled
After signal, receive input power and carry out electricity, concurrently send power-on reset signal to send out-put supply to SVG to central processing unit
Control chip；After the power supply module module receives power supply domain separation enable signal, send power supply domain separation enable signal to
SVG control chips；After the central processing unit receives N number of power-on reset signal, release is sent to the power domain of power supply module
Isolate enable signal.
3. electric power controller according to claim 2, it is characterised in that：The input power comes from SVG control chips
Power supply or power supply module send out-put supply.
4. the electric power controller according to right wants 1-3 any one, it is characterised in that：The power supply module includes POR
Module；The POR modules are bi-directionally connected with central processing unit；After the POR modules receive power supply module enable signal, receive
Input power carries out electricity, concurrently send power-on reset signal to central processing unit.
5. according to the electric power controller described in claim 1-3 any one, it is characterised in that：The power supply module also includes
Out-put supply module；The out-put supply module is bi-directionally connected with central processing unit；The out-put supply module receives center
After the power supply module enable signal of processor output, electricity on input power is received, and send out-put supply and give SVG control chips.
6. electric power controller according to claim 5, it is characterised in that：The out-put supply module using LDO or
DC-DC converter.
7. the electric power controller stated according to claim 5 or 6, it is characterised in that：The power supply module also includes level shift
Module；The level shift module is connected with central processing unit and out-put supply module；The central processing unit sends power domain
Isolate enable signal to level displacement circuit；The out-put supply module sends out-put supply to level displacement circuit；The electricity
Prosposition shift circuit sends power domain isolation signals and gives SVG control chips.
8. according to the electric power controller described in claim 1-3 any one, it is characterised in that：The power supply module also includes
Detection module；The detection module is bi-directionally connected with central processing unit；It is defeated that the detection module detection receives central processing unit
After the power supply module enable signal gone out, electricity on input power is received, concurrently send detection parameters to central processing unit；The centre
When reason device receives detection parameters exception, i.e. power supply module operation irregularity, interrupt signal is sent to central processing unit.
9. electric power controller according to claim 8, it is characterised in that：The detection module includes over-current detection mould
Block, low power testing module；The over-current detection module, low power testing module and central processing unit are bi-directionally connected；The centre
Manage device and send power supply module enable signal to over-current detection module, low power testing module；The over-current detection module sends excessively stream
Signal is to central processing unit；The low power testing module sends low electric signal to central processing unit.
10. electric power controller according to claim 8, it is characterised in that：Also include temperature detecting module；The temperature
Detection module is connected with central processing unit；The temperature of the temperature detecting module detection electric power controller, and it is sent to center
Processor；During the temperature anomaly of the electric power controller, central processing unit sends interrupt signal to central processing unit.
11. according to the electric power controller described in claim 1-3 any one, it is characterised in that：Also include standby module；Institute
The input for stating standby module is connected with the power supply of SVG control chips；The output end of the standby module respectively with central processing
Device connects with power supply module；The standby module sends reference voltage and bias current to power supply module respectively；The standby mould
Block sends standby power, standby clock, standby power OK signals, standby clock OK signals, reference voltage OK signals to centre
Manage device；The central processing unit detects the standby power OK signals, standby clock OK signals, reference voltage of standby module output
During OK signals, power supply module enable signal is sent to individual power supply module.
12. electric power controller according to claim 11, it is characterised in that：The standby module includes standby power mould
Block, standby clock generator, reference voltage circuit, bias current circuit；The standby power module, standby clock generator,
The power supply of reference voltage circuit, the input of bias current circuit respectively with SVG control chips is connected；The standby power mould
Block, the output end of standby clock generator are connected with central processing unit respectively；The reference voltage circuit, bias current circuit
Output end is connected with central processing unit and power supply module respectively.
13. according to the electric power controller described in claim 1-3 any one, it is characterised in that：The central processing unit to
The interrupt signal of PWM control modules output is not maskable interrupt signal.
A kind of 14. electricity of electric power controller suitable for SVG control chips according to claim 1-13 any one
Power supply management method, it is characterised in that：Comprise the steps of：
(2-1) central processing unit sends power supply module enable signal and power supply domain separation enable signal to N number of power supply module respectively；
After (2-2) power supply module receives power supply module enable signal, electricity on input power is received, electrification reset is sent after upper electricity
Signal sends out-put supply and gives SVG control chips to central processing unit；Power supply module receives power supply domain separation enable signal
Afterwards, power domain isolation signals are sent and gives SVG control chips；
(2-3) central processing unit receives the power-on reset signal of N number of power supply module output, i.e., N number of power supply module is fully completed
When upper electric, into step (2-4)；Central processing unit does not receive whole power-on reset signals of N number of power supply module output, and
Wait for a period of time when not receiving N number of power-on reset signal yet after T1, central processing unit will be not detected by corresponding electrification reset
The power supply module of signal is designated as anomalous event, return to step (2-1)；
(2-4) central processing unit discharges the power supply domain separation enable signal for being sent to power supply module, and power supply module release is sent to
The power domain isolation signals of SVG control chips；Electric power controller is SVG control chip normal power supplies；
When (2-5) central processing unit is not detected by electric power controller operation irregularity, return to step (2-4)；Central processing unit is examined
When measuring electric power controller operation irregularity, into step (2-6)；
(2-6) central processing unit exports interrupt signal and gives PWM control modules；PWM control modules turn off IGBT, and in IGBT safety
IGBT safe shutdown signals are sent after shut-off to central processing unit；
(2-7) central processing unit detects the IGBT safe shutdown signals of PWM control modules output, into step (2-8)；Center
Processor be not detected by PWM control modules output IGBT safe shutdown signals, return to step (2-6), and wait one section when
Between when being still not detected by IGBT safe shutdown signals after T2, into step (2-8)；
After (2-8) central processing unit sends power-off reset signal to SVG control chips, power supply module, return to step (2- are closed
1)。
15. method for managing power supply according to claim 14, it is characterised in that：In the step (2-5), power management dress
Put operation irregularity and detect anomaly parameter including over-current detection module, low power testing module and temperature detecting module.
16. method for managing power supply according to claim 15, it is characterised in that：In the step (2-6), central processing unit
The interrupt signal of output is not maskable interrupt signal.
17. according to the method for managing power supply described in claims 14 or 15 or 16, it is characterised in that：The method for managing power supply exists
Before step (2-1), in addition to standby module energizing step；The standby module energizing step comprises the following steps：
It is electric on (1-1) standby module；
(1-2) standby module sends standby power, standby clock, standby power OK signals, standby clock OK signals, reference voltage
OK signals send reference voltage, bias current to N number of power supply module to central processing unit；
(1-3) central processing unit detects standby power OK signals, standby clock OK signals, reference voltage OK signals, into step
Suddenly (2-1)；Central processing unit is not detected by standby power OK signals, standby clock OK signals, reference voltage OK signals, returns to step
Suddenly (1-2)；
Under conditions of standby module energizing step is performed, in step (2-8), central processing unit send power-off reset signal to
After SVG control chips, power supply module, return to step (1-1) are closed.
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| CN201710870871.2A CN107577328A (en) | 2017-09-21 | 2017-09-21 | A kind of electric power controller and method for managing power supply suitable for SVG control chips |
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