CN105846698B - Phase control rectifier method of controlling switch and device - Google Patents
Phase control rectifier method of controlling switch and device Download PDFInfo
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Abstract
Phase control rectifier method of controlling switch, it is captured in interrupt step, if judging, last switch rate-determining steps in a upper cycle have not carried out, do not perform step A. then and take the capture moment of newest synchronizing signal as action benchmark, in the last time switch rate-determining steps in each of which cycle, if judging, the capture interrupt step in next cycle does not perform step A, then this switch rate-determining steps are before step K3. performs the moment according to action benchmark for switch rate-determining steps setting next time, step K2. pre-updated action benchmark is not performed, and is changed to perform step A.Step in this method, functional module can be established, be combined into functional module construction, mainly realized by storing computer program in a computer-readable storage medium.In functional module construction, it need to only run a switch control functions module and whole switch rate-determining steps can be achieved, consumption resource is few, and update action benchmark can be avoided to cause to switch rate-determining steps leakage execution.
Description
Technical field
The present invention relates to phase control rectifier method of controlling switch, the step in this method, functional module can be established, is combined into
Functional module construction, mainly realized by storing computer program in a computer-readable storage medium.
Background technology
Phase control rectifier refers to periodically turn on and off the switch in each bridge arm of rectifier bridge, by controlling each bridge
The phase of the opening of switch in arm/blocking action controls the DC voltage that rectifier bridge exports.It is complete phased whole with three-phase bridge
Flow, i.e. exemplified by six pulse phase control rectifiers, two IGCTs up and down to connect with A phase power supplys are respectively SCR1, SCR4, with B phases electricity
Two IGCTs up and down that source connects are respectively SCR3, SCR6, and two IGCTs up and down to connect with C phase power supplys are respectively
SCR5, SCR2, within a three phase mains cycle (360 degree), IGCT action is allowed every 60 degree once.Because each moment needs
A upper tube for not belonging to same phase and a down tube is allowed to open and the cut-off of remaining IGCT, to form the loop to power to the load,
One group of switch controlling signal need to be provided for this.Six groups of switch controlling signals are provided in a cycle domestic demand, by changing IGCT
Operating angle change commutating voltage, i.e. phase control rectifier.The operating angle of IGCT typically with A phase power supplys zero crossing (now
For 0 degree) at the time of as reference, square-wave signal corresponding with A phase power supplys can be obtained by hardware circuit, this square wave is sent into
DSP, corresponding time of timer when can obtain A phase power supply zero crossings exactly using DSP capturing function, it is referred to as
Capture moment, the action benchmark as six groups of switch controlling signals of this cycle.
First, under normal circumstances, event order of occurrence is：
Synchronizing signal is captured, into this week initial beginning, performs capture interrupt step：When taking the capture of this synchronizing signal
Carve the action benchmark as this cycle；
At the time of having arrived corresponding to+0 degree of action benchmark+operating angle, switch rate-determining steps one are performed：First group is provided to open
Control signal (SCR6, SCR1 are open-minded, the cut-off of remaining IGCT) is closed, is set for switch rate-determining steps next time and performs moment=action
At the time of corresponding to the degree of benchmark+60+operating angle；
At the time of having arrived corresponding to+60 degree of action benchmark+operating angle, switch rate-determining steps two are performed：Provide second group
Switch controlling signal (SCR1, SCR2 are open-minded, and the cut-off of remaining IGCT, hereafter analogue repeats no more), is controlled for switch next time
At the time of step processed is set corresponding to execution moment=+ 120 degree of action benchmark+operating angle；
At the time of having arrived corresponding to+120 degree of action benchmark+operating angle, switch rate-determining steps three are performed：……；
……；
At the time of having arrived corresponding to+300 degree of action benchmark+operating angle, switch rate-determining steps six are performed：Provide the 6th group
Switch controlling signal, due to being the last time switch control of this cycle, switch control will belong to next cycle next time, then under
Secondary switch rate-determining steps are set perform the moment before need pre-updated action benchmark=original action benchmark+360 spend corresponding at the time of,
Set on this basis for switch rate-determining steps next time (the switch rate-determining steps one in i.e. next cycle) and perform moment=action base
At the time of corresponding to accurate+0 degree+operating angle=original action degree+0 degree+operating angle of benchmark+360 corresponding at the time of；
Under normal circumstances, six switch rate-determining steps in this cycle are finished, and can just capture synchronizing signal again,
It is initial into the new cycle, perform capture interrupt step：The capture moment of this synchronizing signal is taken as action benchmark, it is just formal
Have updated action benchmark, so then in the switch rate-determining steps six in a upper cycle pre-updated action benchmark (original action benchmark+
At the time of corresponding to 360 degree) it is substituted；
To the execution moment set by the switch rate-determining steps six in a upper cycle (the i.e. former degree of action benchmark+360 degree+0+
At the time of corresponding to operating angle), perform switch rate-determining steps one：First group of switch controlling signal is provided, is moved based on newest
Make benchmark (the action benchmark formally updated in the capture interrupt step in this cycle), set and hold for switch rate-determining steps next time
At the time of corresponding to row moment=+ 60 degree of action benchmark+operating angle；
……。
Prepare a computer program and realize aforesaid operations, in general thinking is to establish a capture interrupt function module to realize
The capture interrupt step, establish a switch control functions module and realize above-mentioned execution switch rate-determining steps one~six, pass through
Some flag bits realize the differentiation to different switch rate-determining steps.
2nd, however, in the case of such as rectification soft start, it is possible to which No. six switch controls of a cycle are not yet whole
Terminate, just captured the synchronizing signal in next cycle, so then event order of occurrence may be changed into：
Synchronizing signal is captured, into this week initial beginning, performs capture interrupt step：When taking the capture of this synchronizing signal
Carve the action benchmark as this cycle；
At the time of having arrived corresponding to+0 degree of action benchmark+operating angle, switch rate-determining steps one are performed：……；
……
At the time of having arrived corresponding to action benchmark+180 degree+operating angle, switch rate-determining steps four are performed：Provide the 4th group
Switch controlling signal, set and performed corresponding to moment=+ 240 degree of action benchmark+operating angle for switch rate-determining steps next time
Moment；
Then synchronizing signal is captured, is caused under being carried out when the switch rate-determining steps five, six in this cycle have not carried out
The capture interrupt step in one cycle：The capture moment of this synchronizing signal is taken just formally to have updated action base as action benchmark
It is accurate；
At the time of corresponding to+240 degree of the action benchmark+operating angle set as switch rate-determining steps four, switch is performed
Rate-determining steps five：The 5th group of switch controlling signal is provided, based on newest action benchmark (i.e. in the capture being just finished
The action benchmark formally updated in disconnected step), set for switch rate-determining steps next time (switching rate-determining steps six) and perform the moment
At the time of corresponding to=action benchmark+300 degree+operating angle=+ 300 degree of capture moment+operating angle institute in next cycle is right
At the time of answering！
As can be seen here, synchronizing signal is captured if when switch rate-determining steps five have not carried out, have updated action base
Standard, when switch rate-determining steps five will be mistakenly using the action benchmark after renewal to calculate the execution of switch rate-determining steps six
Carve, the execution moment of switch rate-determining steps six is calculated equivalent to the action benchmark in next cycle has been used, cause switch control
Performed at the time of corresponding to+300 degree of action benchmark+operating angle of the step 6 in next cycle, rather than the action in this cycle
Performed at the time of corresponding to the degree of benchmark+300+operating angle, cause switch rate-determining steps six can not be performed within this cycle.
In order to avoid update action benchmark causes to switch rate-determining steps leakage execution, traditional way is to switch rate-determining steps
First, two, three first switch control functions module is established, second switch control work(is established for switch rate-determining steps four, five, six
Can module, two switch control functions modules respectively using different register deposit action benchmark, switch rate-determining steps one,
2nd, action benchmark updates in interrupt step is captured used in three, and switchs the execution moment of rate-determining steps one in capture
Set in disconnected, and switch action benchmark used in rate-determining steps four, five, six and then updated in rate-determining steps three are switched, it is this
The shortcomings that way is to need to run two different switch control functions modules, and consumption resource is more.
The content of the invention
The purpose of the present invention is to realize phase control rectifier with less resource consumption, it becomes possible to avoids update action benchmark from causing
Rate-determining steps leakage is switched to perform.
The present invention provides phase control rectifier method of controlling switch, including capture interrupt step and switch rate-determining steps, wherein：
Capture interrupt step triggers execution because synchronizing signal is captured, including step A. takes catching for newest synchronizing signal
Obtain constantly as action benchmark；
Switch rate-determining steps perform repeatedly within each cycle, wherein：The switch rate-determining steps performed every time include step
K1. provide when secondary switch controlling signal and K3. perform moment, next time according to action benchmark for switch rate-determining steps setting next time
Rate-determining steps are switched to perform at the execution moment；The last time switch rate-determining steps in each cycle are held before being included in step K3
Capable step K2. pre-updated action benchmark；
It is characterized in that：
Captured in interrupt step, if judging, last switch rate-determining steps in a upper cycle have not carried out, and do not hold
Row step A；
In the last time switch rate-determining steps in each cycle, if judging, the capture interrupt step in next cycle does not perform
Step A, then this switch rate-determining steps do not perform step K2 before step K3 and be changed to perform step A.
Beneficial effect：A switch control functions module need to only be run all switch rate-determining steps, consumption money can be achieved
Source is few, and update action benchmark can be avoided to cause to switch rate-determining steps leakage execution.
Operation principle：If capture synchronization before the execution moment of this cycle last time switch rate-determining steps is calculated
Signal, the capture interrupt step in next cycle is performed in advance, the capture interrupt step will judge the last time switch
Rate-determining steps have not carried out, therefore the capture interrupt step is not carried out step A, i.e., will not update action benchmark, so as to will not shadow
Ring the calculating at the then execution moment to this cycle last time switch rate-determining steps, this cycle last time switch rate-determining steps
It is able to perform within this cycle, judges that the capture interrupt step does not perform step A during execution, just perform step before step K3
Rapid A, it is ensured that the execution moment of the switch rate-determining steps in next cycle can be counted based on the capture moment of newest synchronizing signal
Calculate.
Embodiment
By taking the full phase control rectifier of three-phase bridge as an example, six groups of switch controlling signals of a cycle domestic demand, each cycle initially catches
Civil power A phase zero crossings are obtained as synchronizing signal, and predefine phased operating angle.In addition, default capture renewal flag bit is simultaneously
To its initial assignment 0.
First, under normal circumstances, event order of occurrence is：
Synchronizing signal is captured, into this week initial beginning, performs capture interrupt step：A. catching for newest synchronizing signal is taken
Obtain constantly as action benchmark；
At the time of having arrived corresponding to+0 degree of action benchmark+operating angle, switch rate-determining steps one are performed：K1. first is provided
Group switch controlling signal, K3. set execution moment=+ 60 degree of action benchmark+operating angle right for switch rate-determining steps next time
At the time of answering；
At the time of having arrived corresponding to+60 degree of action benchmark+operating angle, switch rate-determining steps two are performed：K1. second is provided
Group switch controlling signal, K3. set execution moment=+ 120 degree of action benchmark+operating angle right for switch rate-determining steps next time
At the time of answering；
At the time of having arrived corresponding to+120 degree of action benchmark+operating angle, switch rate-determining steps three are performed：……；
……；
At the time of having arrived corresponding to+300 degree of action benchmark+operating angle, switch rate-determining steps six are performed：K1. is provided
Six groups of switch controlling signals, due to being the last time switch control of this cycle, and see that capture renewal flag bit is 0, K2. is pre- then
At the time of corresponding to update action benchmark=original action degree of benchmark+360, K3. switchs rate-determining steps (i.e. for next time on this basis
The switch rate-determining steps one in next cycle) set perform moment=+ 0 degree of action benchmark+operating angle corresponding at the time of=original
At the time of action corresponding to degree+0 degree+operating angle of benchmark+360；
Then synchronizing signal is captured, performs capture interrupt step：The capture moment for calculating the synchronizing signal subtracts action base
Will definitely difference be about 0, i.e., less than the time corresponding to 180 degree, judged the switch rate-determining steps six in a upper cycle accordingly
Performed, then initial into the new cycle, A. takes capture moment of this synchronizing signal as action benchmark, so then upper cycle
Switch rate-determining steps six in pre-updated action benchmark it is substituted (at the time of corresponding to the original action degree of benchmark+360)；
To the execution moment set by the switch rate-determining steps six in a upper cycle (the i.e. former degree of action benchmark+360 degree+0+
At the time of corresponding to operating angle), perform switch rate-determining steps one：K1. first group of switch controlling signal is provided, based on newest
Benchmark (the action benchmark formally updated in the capture interrupt step in this cycle) is acted, K3. is switch rate-determining steps next time
At the time of setting corresponding to execution moment=+ 60 degree of action benchmark+operating angle；
……。
2nd, in some instances it is possible to which No. six switch controls of a cycle not yet all terminate, just capture down
The synchronizing signal in one cycle, so then event order of occurrence is：
Synchronizing signal is captured, into this week initial beginning, performs capture interrupt step：A. catching for newest synchronizing signal is taken
Obtain the action benchmark constantly as this cycle；
At the time of having arrived corresponding to+0 degree of action benchmark+operating angle, switch rate-determining steps one are performed：……；
……
At the time of having arrived corresponding to action benchmark+180 degree+operating angle, switch rate-determining steps four are performed：K1. is provided
Four groups of switch controlling signals, K3. set for switch rate-determining steps next time and perform moment=+ 240 degree of action benchmark+operating angle institute
At the time of corresponding；
Then synchronizing signal is captured, performs capture interrupt step：The capture moment for calculating the synchronizing signal subtracts action base
Will definitely difference close to a cycle, i.e., more than the time corresponding to 180 degree, judged the switch rate-determining steps in a upper cycle accordingly
Six have not carried out, then wouldn't A. update action benchmark, and capture renewal flag bit set is 1 to represent that step is interrupted in this capture
Suddenly there is no A. update action benchmark；
At the time of to corresponding to+240 degree of the action benchmark+operating angle set as switch rate-determining steps four, execution is opened
Close rate-determining steps five：K1. the 5th group of switch controlling signal is provided, K3. is set for switch rate-determining steps next time performs moment=dynamic
At the time of work corresponding to the degree of benchmark+300+operating angle；
At the time of having arrived corresponding to+300 degree of action benchmark+operating angle, switch rate-determining steps six are performed：K1. is provided
Six groups of switch controlling signals, due to being the last time switch control of this cycle, and see that capture renewal flag bit is 1, sentence accordingly
Break and the capture interrupt step (see on) in next cycle and do not perform step A, A. takes the capture moment of newest synchronizing signal to make then
To act benchmark, action benchmark is just formally have updated, and it is on this basis next time that capture renewal flag bit, which is reset to 0, K3.,
Switch rate-determining steps (the switch rate-determining steps one in i.e. next cycle) and execution moment=+ 0 degree of action benchmark+operating angle institute is set
At the time of corresponding；
It is initial into the new cycle, opened to the execution moment set by the switch rate-determining steps six in a upper cycle, execution
Close rate-determining steps one：K1. first group of switch controlling signal is provided, K3. is set for switch rate-determining steps next time performs moment=dynamic
At the time of work corresponding to the degree of benchmark+60+operating angle；
……。
Step in the method provided for the present invention, can establish functional module, be combined into functional module construction, mainly
Realized by storing computer program in a computer-readable storage medium.
Claims (10)
1. phase control rectifier method of controlling switch, including capture interrupt step and switch rate-determining steps, wherein：
Capture interrupt step triggers execution because synchronizing signal is captured, including when step A. takes the capture of newest synchronizing signal
Carve as action benchmark；
Switch rate-determining steps perform repeatedly within each cycle, wherein：The switch rate-determining steps performed every time include step K1. to
It is to switch rate-determining steps setting next time to perform moment, next switch to go out to work as secondary switch controlling signal and K3. according to action benchmark
Rate-determining steps perform at the execution moment；What the last time switch rate-determining steps in each cycle performed before being included in step K3
Step K2. pre-updated acts benchmark；
It is characterized in that：
Captured in interrupt step, if judging, last switch rate-determining steps in a upper cycle have not carried out, and do not perform step
Rapid A；
In the last time switch rate-determining steps in each cycle, if judging, the capture interrupt step in next cycle does not perform step
A, then this switch rate-determining steps do not perform step K2 before step K3 and be changed to perform step A.
2. phase control rectifier method of controlling switch according to claim 1, capture renewal flag bit is preset, and：
Capture in interrupt step, if not performing step A, marked in capture updates flag bit；
In the last time switch rate-determining steps in each cycle, flag bit is updated according to capture, realizes the capture to next cycle
Whether interrupt step does not perform step A judgement.
3. phase control rectifier method of controlling switch according to claim 2, the last time switch rate-determining steps in each cycle
In, if having been carried out the mark according to capture renewal flag bit, judge that the capture interrupt step in next cycle does not perform step
Rapid A, then remove the mark.
4. phase control rectifier method of controlling switch according to claim 1, it is captured in interrupt step, to a upper cycle most
The judgement whether the latter switch rate-determining steps have not carried out, is according to the capture moment of newest synchronizing signal and without step
The degree that differ of action both benchmark of A renewals is drawn.
5. phase control rectifier method of controlling switch according to claim 1, described synchronizing signal are derived from inputted exchange
A wherein phase for power supply.
6. phase control rectifier switch controlling device, including capture interruption means and switch controlling device, wherein：
Capture interruption means triggers operation because synchronizing signal is captured, including when device A. takes the capture of newest synchronizing signal
Carve as action benchmark；
Switch controlling device is run repeatedly within each cycle, wherein：Device K1. including being run during each run is provided when secondary
Switch controlling signal and K3. according to action benchmark be that next switch controlling device sets the time of running, under switch controlling device
It is secondary to be run in the time of running；When being included in the last time operation in each cycle, the device K2. run before device K3 is pre-
Update action benchmark；
It is characterized in that：
Capture interruption means includes device P, if it judged that a upper cycle not yet ran last switch controlling device, no
Running gear A；
Switch controlling device is included in the device Q run during the last time operation in each cycle, if it judges next cycle
Capture interruption means not running gear A, then allow this switch controlling device before device K3 not running gear K2 and be changed to transport
Luggage puts A.
7. phase control rectifier switch controlling device according to claim 6, including default device, its default capture renewal mark
Position, and：
The labelling apparatus that capture interruption means is run in the case of being included in not running gear A, it is updated in capture in flag bit
Mark；
The device Q of switch controlling device specifically, according to capture updates flag bit, realizes the capture interruption means to next cycle
Whether not running gear A judgement.
8. phase control rectifier switch controlling device according to claim 7, the device Q of switch controlling device is included in basis and caught
Obtain renewal flag bit and carried out the mark, judge the capture interruption means in next cycle not in the case of running gear A
The remove device of operation, it removes the mark.
9. phase control rectifier switch controlling device according to claim 6, capture the device P of interruption means was to a upper cycle
The no judgement for not yet running last switch controlling device, it is according to the capture moment of newest synchronizing signal and without device
The degree that differ of action both benchmark of A renewals is drawn.
10. phase control rectifier switch controlling device according to claim 6, described synchronizing signal are derived from inputted exchange
A wherein phase for power supply.
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| CN101820242A (en) * | 2009-11-17 | 2010-09-01 | 哈尔滨同为电气股份有限公司 | Detection method of synchronous motor rotor position and device thereof |
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| CN202159982U (en) * | 2011-07-29 | 2012-03-07 | 宁波大学 | Solar photovoltaic grid-connected inverter based on digital signal processor (DSP) |
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| US7031175B2 (en) * | 2003-12-16 | 2006-04-18 | Intersil Americas Inc. | System and method of detecting phase body diode using a comparator in a synchronous rectified FET driver |
| US7366862B2 (en) * | 2004-11-12 | 2008-04-29 | Lsi Logic Corporation | Method and apparatus for self-adjusting input delay in DDR-based memory systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820242A (en) * | 2009-11-17 | 2010-09-01 | 哈尔滨同为电气股份有限公司 | Detection method of synchronous motor rotor position and device thereof |
| CN102097855A (en) * | 2010-12-28 | 2011-06-15 | 广东易事特电源股份有限公司 | Parallel running phase lock method for digital-controlled uninterruptible power supply |
| CN202159982U (en) * | 2011-07-29 | 2012-03-07 | 宁波大学 | Solar photovoltaic grid-connected inverter based on digital signal processor (DSP) |
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