CN103633860B - Anti-shake electric installation adaptive control system - Google Patents
Anti-shake electric installation adaptive control system Download PDFInfo
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- CN103633860B CN103633860B CN201310613038.1A CN201310613038A CN103633860B CN 103633860 B CN103633860 B CN 103633860B CN 201310613038 A CN201310613038 A CN 201310613038A CN 103633860 B CN103633860 B CN 103633860B
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Abstract
The present invention relates to anti-shake electric installation adaptive control system, this system includes alternating current power supply, measuring circuit, central control unit, ac-dc converter circuit, alternating current-direct current switching circuit, failure of current circuit and DC voltage auto-changing circuit, and alternating current power supply provides alternating voltage；Measuring circuit measures the voltage and current of alternating current power supply, and feeds back to central control unit；The alternating current that alternating current power supply provides is converted to unidirectional current by ac-dc converter circuit, and the d. c. voltage signal of storage is fed back to central control unit；Ac-dc converter circuit provides DC voltage by DC voltage auto-changing circuit for catalyst；Central control unit selects the electric power system of catalyst according to alternating voltage and DC voltage control alternating current-direct current switching circuit；Failure of current circuit is arranged between alternating current power supply and catalyst, and when the electric power system of catalyst switches to straight-flow system from AC system, central control unit controls the electric current of failure of current circuitry cuts alternating current power supply.
Description
Technical field
The present invention relates to a kind of anti-shake electric installation adaptive control system.
Background technology
At present, conventional anti-shake electric installation is as it is shown in figure 1, utilize Current Transmit and voltage transformer
Voltage Uac in AC system and electric current Iac is measured by the measuring circuit of VT composition, when exchange system
After system occurs Voltage Drop, micro-control unit MCU detects that Voltage Drop (i.e. arrive by measuring circuit measurement
Voltage Uac and the change of electric current Iac), make relay J 0 obtain electric, two normally-closed contacts of relay J 0
J0-1 and J0-2 is switched in straight-flow system, makes catalyst KM keep.Specifically, straight-flow system is from friendship
Streaming system introduces 220V alternating voltage, utilizes AC/DC that alternating voltage is transformed into DC voltage, passes through
One heavy-duty diode D0 realizes blood pressure lowering, and the voltage after reduction is converted to by voltage changer LDO
It is applicable to the driving voltage of described micro-control unit MCU, powers for described micro-control unit MCU；With
Time, the voltage after reduction accesses the two ends of an electric capacity C, and by the monitoring voltage electricity to electric capacity C two ends
Pressure VE measures, and is sent in micro-control unit MCU by this measurement signal, when this signal (electricity
Pressure VE) reach predetermined value, illustrate that electric capacity C charging is complete, can be that catalyst KM carries out direct current confession
Electricity.After switching to direct current supply, in addition to the voltage transformation needing DC/DC, in addition it is also necessary to by short
Connect any two outside terminal in JP-1, JP-2, JP-3, JP-4, JP-N big to the DC voltage of output
Little being adjusted, specifically which two terminal in JP-1 to JP-N being carried out short circuit is then that user is according to connecing
The capacity of tentaculum KM selects by empirical value, each diode (D1, D2, D3, D4, D5)
The pressure drop brought is about between 0.7～1V, and therefore, the voltage externally provided is several big extreme difference electricity
Pressure.
In aforesaid way, it is necessary to carry out short circuit outside terminal (JP-1 according to the capacity of selected catalyst KM
To JP-N) to control output voltage, and output voltage size is fixing, it is impossible to continuously adjustabe, because of
This can not well match with catalyst KM.User is after having changed catalyst KM, it is necessary to again
Select short circuit outside terminal (JP-1 to JP-N), make output voltage to adapt to different catalyst KM,
Brought inconvenience to producing, install, debugging, owing to empirical value may not be accurate, exist and artificially adjust error
Possibility, exist follow-up occur shaking electricity time can not reliably keep the hidden danger of catalyst KM, and then cause through
Ji loss.
Summary of the invention
The present invention provides a kind of anti-shake electric installation adaptive control system, to solve existing anti-shake electric installation
The problems referred to above.
For solving above-mentioned technical problem, the present invention provides anti-shake electric installation adaptive control system, including handing over
Stream power supply, measuring circuit, central control unit and ac-dc converter circuit, also include that alternating current-direct current switches
Circuit, failure of current circuit and DC voltage auto-changing circuit, wherein,
Described alternating current power supply provides alternating voltage for catalyst；
Described measuring circuit measures the voltage and current signal of alternating current power supply, and feeds back to the control of described central authorities
Unit；
The alternating current that described alternating current power supply provides is converted to unidirectional current by described ac-dc converter circuit, and will
The d. c. voltage signal stored feeds back to described central control unit；
Described ac-dc converter circuit provides direct current by described DC voltage auto-changing circuit for catalyst
Voltage；
Described central control unit controls described alternating current-direct current according to described alternating voltage and d. c. voltage signal and cuts
Change circuit and select the electric power system of described catalyst；
Described failure of current circuit is arranged between described alternating current power supply and catalyst, when described catalyst
Electric power system is when AC system switches to straight-flow system, and described central control unit controls described electric current and cuts
Deenergizing cuts off the electric current of alternating current power supply.
It is preferred that described failure of current circuit includes the first relay, bridge rectifier, the first resistance
And the first transistor, the normally-closed contact of described first relay is series between alternating current power supply and catalyst,
And with the one of described bridge rectifier group of relative pins in parallel, another group of described bridge rectifier
Relative pins in parallel is between the source electrode and drain electrode of described the first transistor, and with described first resistance also
Connection, the grid of described the first transistor is connected with described central control unit.
It is preferred that described alternating current-direct current switching circuit include the second relay, linear optical coupling, Hall element with
And voltage comparator, described DC voltage is stored up in described ac-dc converter circuit by described linear optical coupling
The d. c. voltage signal deposited compares in described voltage comparator, the second relay described in its output control
Device dead electricity, when described second relay obtains electric, the first normally-closed contact of described second relay and the
Two normally-closed contacts are connected with straight-flow system；During described second relay electric-loss, the of described second relay
One normally-closed contact and the second normally-closed contact are connected with AC system.
It is preferred that described DC voltage auto-changing circuit includes PWM unit, transistor seconds and two
Pole is managed, and the source electrode of described transistor seconds and drain electrode are in parallel with described diode forward, described second crystal
The grid of pipe is connected with described PWM unit, and described PWM unit is connected with described central control unit.
It is preferred that described anti-shake electric installation adaptive control system also includes that man-machine interface and serial communication connect
Mouthful, described man-machine interface is connected with described central control unit respectively with serial communication interface.
Present invention also offers a kind of anti-shake electric installation self-adaptation control method, be applied to as above anti-
Shake in electric installation adaptive control system, comprise the following steps: system electrification, by described measuring circuit
Measure alternating voltage and alternating current continuously, after alternating current has stream, and lasting 15s, calculate and connect
The resistance of tentaculum coil, and the adaptive size calculating the DC voltage needing offer, when system is examined
Measure alternating voltage to fall, and detect when DC voltage is normal, then central control unit controls alternating current-direct current
Switching circuit and failure of current circuit operation, switch to straight-flow system and power；When system is for shaking electricity situation,
The electricity time delay that then carries out shaking keeps, shake electricity delay time to or alternating voltage to recover two conditions satisfied at least
When one, central control unit switching straight-flow system is powered and is powered for catalyst.
It is preferred that idiographic flow comprises the following steps:
S1: enter mastery routine entrance；
S2: system initialization；
S3: create task 0, task 1 and task 2；
S4: start task 0, task 1 and task 2；
S5: mastery routine entrance terminates.
It is preferred that the execution interval of described task 0 is 5ms, the execution interval of task 1 is 20ms, appoints
The execution interval of business 2 is 50ms.
The anti-shake electric installation adaptive control system of present invention offer and control method thereof are compared with prior art
Have the advantage that
1. system is measured according to measuring circuit alternating voltage and alternating current, calculate contactor coil
Resistance, and maintain alternating current, adaptive calculating to need to provide the straight of output according to contactor coil
The size of stream voltage, by DC voltage auto-changing circuit without the adjustment direct voltage output size of extreme difference
Carry out theory of correspondences output DC voltage；
2. for the catalyst of different capabilities size, the Automatic adjusument output unidirectional current that system can be completely intelligent
Pressure size, it is not necessary to manually participated in；
3. avoid and need to readjust the workload that voltage is brought from debugging, replacing catalyst, improve
Production efficiency；
4., after setting DC operation pattern, A.C. contactor can under normal circumstances, from AC system
Power switching is powered to straight-flow system, reduces exchange energy consumption (catalyst exists eddy-current loss), and reduces
Noise (there is zero crossing in catalyst electric current, there is AC noise).
Accompanying drawing explanation
Fig. 1 is the theory diagram of existing anti-shake electric installation control system；
Fig. 2 is the simple block diagram of the anti-shake electric installation adaptive control system of the embodiment of the invention；
Fig. 3 is the circuit diagram of the anti-shake electric installation adaptive control system of the embodiment of the invention；
Fig. 4 be the embodiment of the invention anti-shake electric installation self-adaptation control method in the flow process of mastery routine
Figure；
Fig. 5 be the embodiment of the invention anti-shake electric installation self-adaptation control method in the flow process of task 1
Figure；
Fig. 6 be the embodiment of the invention anti-shake electric installation self-adaptation control method in the flow process of task 2
Figure；
Fig. 7 be the embodiment of the invention anti-shake electric installation self-adaptation control method in the flow process of task 0
Figure；
Fig. 8 be the embodiment of the invention anti-shake electric installation self-adaptation control method in switching control program
Flow chart.
In Fig. 2-8: 10-measuring circuit, 20-central control unit, 30-ac-dc converter circuit, 40-alternating current-direct current
Switching circuit, 50-failure of current circuit, 60-DC voltage auto-changing circuit.
Detailed description of the invention
For the technical scheme of more detailed statement foregoing invention, it is exemplified below specific embodiment and proves skill
Art effect；It is emphasized that these embodiments are for illustrating that the present invention is not limited to limit the scope of the present invention.
Refer to Fig. 2 to Fig. 8, the anti-shake electric installation adaptive control system that the present invention provides, including alternating current
Source (220V alternating current), measuring circuit 10, central control unit 20 and ac-dc converter circuit 30, also
Including alternating current-direct current switching circuit 40, failure of current circuit 50 and DC voltage auto-changing circuit 60, wherein,
Described alternating current power supply provides alternating voltage for catalyst KM；
Described measuring circuit 10 measures the voltage and current signal of alternating current power supply, wherein, alternating voltage Uac,
Alternating current Iac, and the value of Uac and Iac is fed back to described central control unit 20, described measuring circuit
The circuit composition of 10 and component function are identical with prior art, and here is omitted；
The alternating current that described alternating current power supply provides is converted to unidirectional current by described ac-dc converter circuit 30, and will
The d. c. voltage signal VE stored feeds back to described central control unit 20, wherein, the DC voltage letter of storage
Number VE is the voltage (charge volume of electric capacity C) at electric capacity C two ends；
Described ac-dc converter circuit 30 is carried for catalyst KM by described DC voltage auto-changing circuit 60
For DC voltage Udc；
Described central control unit 20 controls according to the voltage VE at described alternating voltage Uac and electric capacity C two ends
Described alternating current-direct current switching circuit 40 selects the electric power system of described catalyst KM；
Described failure of current circuit 50 is arranged between described alternating current power supply and catalyst KM, when described contact
The electric power system of device KM is when AC system switches to straight-flow system, and described central control unit 20 controls institute
State failure of current circuit 50 and cut off the electric current of alternating current power supply, it is achieved cut off the purpose of current circuit without arc, it is to avoid
The first normally-closed contact J2-1 and the second normally-closed contact J2-2 of arc through the second catalyst J2, is carried out contact
Protection.
It is preferred that ask emphasis with reference to Fig. 3, described failure of current circuit 50 includes the first relay J 1, bridge-type
Rectification circuit, the first resistance R1 and the first transistor IGBT1, the normally-closed contact of described first relay J 1
J1-1 is series between alternating current power supply and catalyst KM, and with the one of described bridge rectifier group of relative drawing
Foot is in parallel, and another of described bridge rectifier organizes relative pins in parallel in described the first transistor IGBT1
Source electrode and drain electrode between, and in parallel with described first resistance R1, the grid of described the first transistor IGBT1
It is connected with described central control unit 20.
It is preferred that please continue to refer to Fig. 3, described alternating current-direct current switching circuit 40 includes the second relay J 2, line
Property optocoupler, Hall element and voltage comparator, specifically, described linear optical coupling is mainly used in the isolation of signal,
And anti-interference, described Hall element is used for measuring DC current Idc, described DC voltage Udc by described
Linear optical coupling and the voltage VE at the electric capacity C two ends of storage in described ac-dc converter circuit 30 are at described voltage
Comparator compares, the second relay J 2 described in its output control dead electricity, described second relay
When J2 obtains electric, the first normally-closed contact J2-1 of described second relay J 2 and the second normally-closed contact J2-2 and direct current
System connects；During described second relay J 2 dead electricity, the first normally-closed contact J2-1 of described second relay J 2
It is connected with AC system with the second normally-closed contact J2-2.
It is preferred that please continue to refer to Fig. 3, described DC voltage auto-changing circuit 60 include PWM unit,
Transistor seconds IGBT2 and diode D, the source electrode of described transistor seconds IGBT2 and drain electrode and described two
Pole pipe D forward is in parallel, and the grid of described transistor seconds IGBT2 is connected with described PWM unit, described
PWM unit is connected with described central control unit 20.
Described anti-shake electric installation adaptive control system also includes man-machine interface and serial communication interface, man-machine interface
For man-machine interaction；Serial communication interface, for the collection of external signal, uses RS485 in the present embodiment, when
So, its quantity can be extended according to concrete needs.
Refer to Fig. 4-8, and combine Fig. 2-3, present invention also offers a kind of anti-shake electric installation Self Adaptive Control side
Method, is applied in anti-shake electric installation adaptive control system as above, the steps include: system electrification, logical
Cross described measuring circuit and measure alternating voltage and alternating current continuously, after alternating current has stream, and lasting 15s,
Calculate the resistance of contactor coil, and the adaptive size calculating the DC voltage that offer is provided, when being
System detects that alternating voltage falls, and detects when DC voltage is normal, then central control unit controls alternating current-direct current
Switching circuit and failure of current circuit operation, switch to straight-flow system and power；When system is for shaking electricity situation, then enter
Row shake electricity time delay keep, shake electricity delay time to or alternating voltage recovery two conditions meet at least one time,
Central control unit switching straight-flow system is powered and is powered for catalyst.
Please emphasis with reference to Fig. 4, its steps flow chart includes:
S1: enter mastery routine entrance；
S2: system initialization, initializes and operating system initialization, wherein including system initialization, mark
Mark initializes and specifically includes operational mode, forbids switching mark and the set of all abnormality marks, specifically:
In initialization procedure: operational mode sets to 0, forbid switching mark puts 1, all abnormality marks set to 0.Operational mode
Including 0,1,2 totally 3 duties: when operational mode=0, power for AC system, when running mould
During formula=1, power for rolling power mode, when operational mode=2, power for straight-flow system；Forbid switching mark
Have 0 and 1 two duty: when forbidding switching mark=0, then it represents that allow to switch to straight-flow system
Power supply, when forbidding switching mark=1, then it represents that do not allow to switch to straight-flow system and power；All abnormal marks
Will has 0 and 1 two kind of duty, and when abnormal generation, all abnormality mark=0, when there being abnormal generation
Time, all abnormality mark=1.In other words, during initialization, select AC system to be powered, due to electric capacity
C is not also charged, therefore can not switch to straight-flow system and power, and acquiescence does not has abnormal conditions to occur.
S3: create task 0, task 1 and task 2, it is preferred that the execution interval of described task 0 is 5ms,
The execution interval of task 1 is 20ms, and the execution interval of task 2 is 50ms.
S4: start task 0, task 1 and task 2；
S5: mastery routine entrance terminates.
Specifically, asking emphasis with reference to Fig. 5, the step of described task 1 includes:
S11: enter task 1 entrance；
S12: calculate alternating voltage Uac, alternating current Iac, uses FFT mode, the most quickly in the present embodiment
Fourier transform mode calculates Uac and Iac；
S13: calculate the inductance XL and resistance R of catalyst KM coil；
S14: calculate DC voltage Udc, DC current Idc；
S15: determine whether the switching of electric power system, i.e. judges whether can to forbid that switching mark sets to 0；
S16: task 1 terminates.
Specifically, asking emphasis with reference to Fig. 6, the step of described task 2 includes:
S21: enter task 2 entrance；
S22: shown in man machine interface by man-machine interface；
S23: whether monitoring external data interface has external signal to input, and processes (externally including serial communication 1
Signal), serial communication 2 processes (internal signal), and other programs；
S24: task 2 terminates.
Specifically, asking emphasis with reference to Fig. 7, the step of described task 0 includes:
S100: judge whether operational mode is 0, if then performing step S110, if otherwise performing step S130；
S110: judge the most whether DC voltage is 1 (being 0 when DC voltage is normal, be 1 time abnormal), if
It is then to perform step S130, if otherwise performing step S111；
S111: judge that whether direct voltage output is 1 (without being 0 during direct voltage output, to have DC voltage defeated
It is 1 when going out), if then performing step S130, if otherwise performing step S112；
Alternating voltage Uac that S112: read step S12 obtains, the value of alternating current Iac, and enter step
S113；
S113: judge whether alternating current Iac is more than 160V more than 0 and alternating voltage Uac, if so,
Prove that alternating current output is normal, then perform step S114, if otherwise performing step S120；
S114: have flow counter to add 1, and enter step S115；
S115: judge whether have flow counter more than 3000, if so, proves that electric capacity C is the most charged complete,
Then perform step S116, if otherwise task 0 terminates；
S116: the value of the resistance R of the catalyst KM coil obtained in read step S13, and enter step
S117；
S117: calculating theoretical direct voltage output value Udcset, its computational methods are: Udcset=0.8*Iac*R,
Enter step S118；
S118: theoretical direct voltage output value Udcset calculated in storing step S117, and control institute
Stating DC voltage auto-changing circuit 60 and exporting this theory direct voltage output value Udcset is described catalyst
KM provides DC voltage, enters step S119；
S119: direct voltage output puts 1, and task 0 terminates；
S120: have flow counter to reset, subsequently into step S115；
S130: theoretical direct voltage output value Udcset drawn in read step S117, and enter step
S131；
S131: the DC voltage Udc obtained in read step S14, and enter step S132；
S132: judge theoretical direct voltage output value Udcset in step 130 and the direct current in step S131
Whether voltage Udc is consistent, and if so, proves that straight-flow system is powered normally, then enter step S133, if otherwise
Enter step S140；
S133: electric voltage exception counter O reset, DC voltage is abnormal to be set to 0, and enters step S134；
S134: judge that electric voltage exception enumerator, whether more than 10ms, if so, proves straight-flow system abnormal electrical power supply,
Then enter step S135, if it is not, prove may then enter step S150 for shaking electricity situation；
S135: DC voltage is abnormal puts 1, and direct voltage output sets to 0, and forbids that switching mark puts 1, switches to friendship
Streaming system is powered, and task 0 terminates；
S140: electric voltage exception enumerator+1, and enter step S134；
S150: judge whether operational mode is 1, if then entering step S151, if otherwise entering step S160；
S151: judge whether rolling electricity delay time arrives, if then entering step S153, if otherwise entering step
Rapid S152；
S152: judge that the alternating voltage Uac value in step S112, whether more than 180V, if so, proves exchange
System is normal, then enter step S153, if it is not, prove that AC system is also abnormal, then task 0 terminates；
S153: controlling the first relay J 1 and the second equal dead electricity of relay J 2, operational mode sets to 0, and forbids cutting
Dehorn will puts 1, is namely switched to AC system and powers；
S160: judge that the alternating voltage Uac value in step S112, whether less than 150V, if so, proves still have
It is likely to occur rolling electricity condition, then enters step S161, if otherwise task 0 terminates, keep straight-flow system to power；
S161: judge whether time delay 20ms arrives, if so, proves to confirm as shaking electricity situation, then enter step
S162, if it is not, then task 0 terminates；
S162: operational mode puts 1, and task 0 terminates, and namely enters rolling electricity power supply state.
It is preferred that ask emphasis with reference to Fig. 8, the operating procedure of switching control program includes:
S200: signals collecting, including the collection of analog quantity, such as: alternating voltage Uac, alternating current Iac,
DC voltage Udc, DC current Idc etc., and it is converted into the digital quantity of correspondence；The collection of intake,
The external signal such as monitored in step S23；
S210: judge whether operational mode is 0, if then performing step S211, if otherwise performing step S230；
S211: judge to forbid whether switching mark is 1, if then interrupt routine terminates, if otherwise performing step
S212；
S212: judge whether direct voltage output is 1, if so, proves that straight-flow system is normal, then perform step
S213, if otherwise interrupt routine terminates；
S213: judge whether alternating voltage Uac falls, if so, proves that alternating voltage is abnormal, then perform step
S214, if otherwise performing step S220；
S214: judge whether alternating current Iac increases, if then performing step S237, if otherwise performing step
S215；
S215: operational mode puts 1, and enters step S216, enters rolling electricity power supply state；
S216: starting described failure of current circuit 50, specifically, the first transistor IGBT1 starts, first
Relay J 1 obtains electric, enters step S217；
S217: time delay 4ms, it is ensured that the first normally-closed contact J1-1 of the first relay J 1 is already off, enter
Step S218；
S218: start described alternating current-direct current switching circuit, specifically, turns off the first transistor IGBT1, starts the
Two relay J 2, interrupt routine terminates；
S220: judge whether to switch to ac power supply system, if then performing step S221, if otherwise
Interrupt routine terminates, and specifically, is provided with a MODE position, works as MODE in described central control unit 20
When setting to 0, it is allowed to straight-flow system is powered and shaken power mode and powers, so can after electric capacity C charging complete one section
Use straight-flow system to power, with using electricity wisely in time always；When MODE puts 1, it is allowed to straight-flow system
Power, the power mode that shakes is powered and AC system is powered；
S221: operational mode puts 2, switches to straight-flow system and powers, and enters step S216；
S230: judge whether DC voltage is 1 extremely, if then performing step S236, if otherwise performing step
S231；
S231: the DC current Idc obtained in read step S14, and enter step S232；
S232: judge whether theoretical DC current output valve Idcset is more than the DC current Idc in step S231,
If so, prove that straight-flow system is likely to occur abnormal electrical power supply, then enter step S233, if otherwise entering step S240；
S233: without flow counter+1, and enter step S234；
S234: whether judge without flow counter more than 20ms, if so, confirms straight-flow system abnormal electrical power supply, then
Perform step S235, if otherwise interrupt routine terminates；
S235: DC current is abnormal puts 1, and enters step S236；
S236: close alternating current-direct current switching circuit 40 and failure of current circuit 50, specifically, the first relay J 1
With the second equal dead electricity of relay J 2, operational mode sets to 0, and enters step S237；
S237: forbidding that switching mark puts 1, interrupt routine terminates；
S240: reset without flow counter, and perform step S234.
In sum, the present invention provide anti-shake electric installation adaptive control system and control method, this system
Cut including alternating current power supply, measuring circuit 10, central control unit 20, ac-dc converter circuit 30, alternating current-direct current
Changing circuit 40, failure of current circuit 50 and DC voltage auto-changing circuit 60, alternating current power supply provides alternating current
Pressure；Measuring circuit 10 measures the voltage and current of alternating current power supply, and feeds back to central control unit 20；Hand over straight
The alternating current that alternating current power supply provides is converted to unidirectional current, and the DC voltage letter that will store by stream change-over circuit 30
Number feed back to central control unit 20；Ac-dc converter circuit 30 is by DC voltage auto-changing circuit 60
DC voltage is provided for catalyst KM；Central control unit 20 is handed over according to alternating voltage and DC voltage control
DC switching circuit 40 selects the electric power system of catalyst KM；Failure of current circuit 50 is arranged at alternating current power supply
And between catalyst KM, when the electric power system of catalyst KM switches to straight-flow system from AC system, in
Centre control unit 20 controls failure of current circuit 50 and cuts off the electric current of alternating current power supply.
The present invention automatically by measuring catalyst KM resistance R size and alternating current Iac, and can pass through
The magnetic adhesion principle of equal effects, calculates theoretical direct voltage output value Udcset needing to provide automatically.Whole mistake
Journey is no longer necessary to manually adjust and participate in, and significantly provides anti-shake electricity module to the catalyst KM's of different capabilities
Automatically adapt to ability, and make user avoid from debugging, change catalyst and need to readjust voltage and brought
Workload, improve production efficiency.After setting DC operation pattern, catalyst KM can be normally
In the case of, power from AC system power switching to straight-flow system, reduce exchange energy consumption, and reduce noise.
Obviously, those skilled in the art can carry out various change and modification without deviating from the present invention's to invention
Spirit and scope.So, if these amendments of the present invention and modification belong to the claims in the present invention and equivalent thereof
Within the scope of technology, then the present invention is also intended to change and including modification include these.
Claims (3)
1. an anti-shake electric installation adaptive control system, controls single including alternating current power supply, measuring circuit, central authorities
Unit and ac-dc converter circuit, it is characterised in that also include alternating current-direct current switching circuit, failure of current circuit with
And DC voltage auto-changing circuit, wherein,
Described alternating current power supply provides alternating voltage for catalyst；
Described measuring circuit measures the voltage and current signal of alternating current power supply, and feeds back to the control of described central authorities
Unit；
The alternating voltage that described alternating current power supply provides is converted to DC voltage by described ac-dc converter circuit,
And the d. c. voltage signal of storage is fed back to described central control unit, described alternating current-direct current switching circuit bag
Including the second relay, linear optical coupling, Hall element and voltage comparator, described DC voltage passes through institute
State linear optical coupling with the d. c. voltage signal of storage in described ac-dc converter circuit at described voltage comparator
In compare, the second relay described in its output control dead electricity, when described second relay obtains electric,
First normally-closed contact and second normally-closed contact of described second relay are connected with straight-flow system；Described second
During relay electric-loss, the first normally-closed contact of described second relay and the second normally-closed contact and AC system
Connect；
Described ac-dc converter circuit provides direct current by described DC voltage auto-changing circuit for catalyst
Voltage, described DC voltage auto-changing circuit includes PWM unit, transistor seconds and diode,
The source electrode of described transistor seconds and drain electrode are in parallel with described diode forward, the grid of described transistor seconds
Pole is connected with described PWM unit, and described PWM unit is connected with described central control unit；
Described central control unit, according to described alternating voltage and d. c. voltage signal, controls described alternating current-direct current
Switching circuit selects the electric power system of described catalyst；
Described failure of current circuit is arranged between described alternating current power supply and catalyst, when described catalyst
Electric power system is when AC system switches to straight-flow system, and described central control unit controls described electric current and cuts
Deenergizing cuts off the electric current of alternating current power supply.
Anti-shake electric installation adaptive control system the most as claimed in claim 1, it is characterised in that described electric current
Cut off circuit and include the first relay, bridge rectifier, the first resistance and the first transistor, described first
The normally-closed contact of relay is series between alternating current power supply and catalyst, and with one group of described bridge rectifier
Relative pins in parallel, another of described bridge rectifier organizes relative pins in parallel in described the first transistor
Source electrode and drain electrode between, and with described first resistor coupled in parallel, the grid of described the first transistor and described central authorities
Control unit is connected.
Anti-shake electric installation adaptive control system the most as claimed in claim 1, it is characterised in that described anti-shake
Electric installation adaptive control system also includes that man-machine interface and serial communication interface, described man-machine interface and serial are logical
Letter interface is connected with described central control unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310613038.1A CN103633860B (en) | 2013-11-26 | 2013-11-26 | Anti-shake electric installation adaptive control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310613038.1A CN103633860B (en) | 2013-11-26 | 2013-11-26 | Anti-shake electric installation adaptive control system |
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| Publication Number | Publication Date |
|---|---|
| CN103633860A CN103633860A (en) | 2014-03-12 |
| CN103633860B true CN103633860B (en) | 2016-08-24 |
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| CN104682394B (en) * | 2015-03-03 | 2017-04-12 | 东北大学 | Electric-dazzling prevention device and method of bidirectional zero-clearance conversion current based on self-adaption |
| CN104935077B (en) * | 2015-05-08 | 2018-06-12 | 江苏国网自控科技股份有限公司 | For the Anti-electricity dazzling device and its control method of series capacitance type A.C. contactor |
| CN105429444A (en) * | 2015-11-20 | 2016-03-23 | 芜湖锐芯电子科技有限公司 | Alternating-current and direct-current automatic conversion circuit |
| CN105429104B (en) * | 2015-11-26 | 2018-03-02 | 江苏国网自控科技股份有限公司 | A kind of new low-tension motor protection and Anti-electricity dazzling device and its control method |
| CN106295027B (en) * | 2016-08-16 | 2019-08-23 | 郑州伊海电气设备有限公司 | A kind of modeling method with the disturbance of adaptive reactance voltage |
| CN108508801A (en) * | 2018-03-30 | 2018-09-07 | 山东泰开电力电子有限公司 | A kind of the intake Acquisition Circuit and method of adaptive remote signalling power supply |
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