CN106933290A - The intelligent high-precision voltage stabilizing device of self adaptation dynamic power wide - Google Patents
The intelligent high-precision voltage stabilizing device of self adaptation dynamic power wide Download PDFInfo
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- CN106933290A CN106933290A CN201710309287.XA CN201710309287A CN106933290A CN 106933290 A CN106933290 A CN 106933290A CN 201710309287 A CN201710309287 A CN 201710309287A CN 106933290 A CN106933290 A CN 106933290A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
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Abstract
The present invention relates to a kind of intelligent high-precision voltage stabilizing device of self adaptation dynamic power wide, its major loop includes 1 compensator transformer, 4 IGBT and intelligent driven controlling system；Harmonics restraint inductance L1 is connected in 4 IGB of input power live wire and chop control, in the tail end connection first contactor (KM1 of compensator transformer (T1) primary side）Contact and second contactor (KM2）Contact；The two ends of compensator transformer (T1) secondary are simultaneously connected to the 3rd contactor (KM3）Contact.The present invention uses chop control technological adjustment offset voltage value, realizes adaptation dynamic power wide and high-precision output voltage.
Description
Technical field
The present invention relates to a kind of voltage-stablizer, a kind of intelligent high-precision voltage stabilizing dress of self adaptation dynamic power wide is referred in particular to
Put.
Background technology
Exceed radius of electricity supply for power supply remote districts, terminal voltage is difficult to ensure that power factor (PF) does not reach requirement, line loss
Greatly；Power supply quality cannot be met.Stable-pressure device is the component essential to ensure power supply quality；Current coil type on the market
Stable-pressure device collocation structure or circuit are probably divided into 4 kinds：1st, it is made up of motor, automatic control circuit and carbon brush；It is such steady
Pressure device response speed is slow, and fault rate is higher；2nd, it is made up of compensator transformer, multi-tap pressure regulator and contactor；Such voltage stabilizing
Device is powered to compensator transformer by the respective taps of contactor matrix majorization multi-tap pressure regulator and realizes the function of voltage stabilizing；This
The multi-tap multi-regulator that class stable-pressure device is used, has that the precision of voltage regulation is low, and volume is larger；3rd, use and connect
Tentaculum is controlled；Such compensation circuit response time is excessively slow, and requirement is can not meet for high-accuracy equipment；4th, by compensating more
Transformer and Group of Silicon Controlled Rectifier into；Therefore its response time is fast using controllable silicon for such voltage-stablizer, but multiple compensator transformers are direct
Stable-pressure device precision in itself and capacity issue are had influence on；Be present voltage stabilizing output discontinuously in this contactless stable-pressure device, mend
The reason for repaying voltage and there is ladder grade, it is impossible to reach the purpose of high-precision voltage stabilizing output, especially to will with work voltage accuracy
Ask it is higher in the case of cisco unity malfunction.
On 06 18th, 2014, extremely electric Science and Technology Ltd. was closed in Chinese utility model Authorization Notice No. in Zhejiang：
In CN203658891U, disclose a kind of contactless voltage stabilizer of chopped mode, it include 1 compensator transformer, 4 IGBT, 4 can
Control silicon, 1 electric capacity and 1 inductance, input power live wire connect one end of compensator transformer secondary, compensator transformer secondary it is another
The colelctor electrode of an IGBT is terminated, and connects output end of pressure-stabilizing, an IGBT and the 2nd IGBT connects, the colelctor electrode of the 2nd IGBT connects
The colelctor electrode of inductance and the 4th IGBT, the other end of inductance connects one end of electric capacity, second controllable silicon one end, the 4th controllable silicon respectively
One end, the second controllable silicon and the first controllable silicon in serial connection, the 4th controllable silicon and the 3rd controllable silicon in serial connection, the intermediate point of two series circuits
Another terminal connecting zero line at the two ends of compensator transformer primary side, the first controllable silicon and the 3rd controllable silicon, the other end of electric capacity are connect respectively
Connecting to neutral line, the emitter stage of the 4th IGBT connects the emitter stage of the 3rd IGBT, the colelctor electrode connecting to neutral line of the 3rd IGBT.The invention is by control
Make 4 working conditions of controllable silicon to control the direction of compensator transformer original edge voltage, so as to compensation secondary voltage needed for obtaining
The size and Orientation of Δ U, realizes output burning voltage.But there is conducting resistance and easily generate heat in controllable silicon, internal system electricity damage compared with
Greatly；There is the high-frequency harmonic of internal system simultaneously, directly affect the power supply quality of external electrical network.
The content of the invention
The technical problems to be solved by the invention are directed to the deficiency of existing stable-pressure device technology, there is provided a kind of self adaptation is wide
The intelligent high-precision voltage stabilizing device of dynamic power, it uses chop control technological adjustment offset voltage value, realizes adaptation wide dynamic
State is powered and high-precision output voltage.
To achieve the above object, the present invention is achieved through the following technical solutions：Including 1 compensator transformer, 4
IGBT and intelligent driven controlling system；Input power live wire connects the head end of compensator transformer secondary；Input power live wire is also through humorous
Ripple suppresses inductance and connects the colelctor electrode and first contactor of an IGBT, and it is former to connect compensator transformer by the contact of first contactor
Side tail end；First IGBT and the 2nd IGBT connect, and the colelctor electrode of the 2nd IGBT meets High frequency filter inductance and the 3rd IGBT simultaneously
Colelctor electrode；The head end of another termination compensator transformer primary side of High frequency filter inductance, and it is first with compensator transformer primary side is attempted by
The second filter capacitor composition LC High frequency filters loop of tail end；The emitter stage of the 3rd IGBT connects the emitter stage of the 4th IGBT, the 4th
The colelctor electrode connecting to neutral line of IGBT；First filtered electrical also in parallel between an IGBT colelctor electrodes and the 4th IGBT colelctor electrodes
Hold；The tail end of the compensator transformer secondary connects output end of pressure-stabilizing；The two ends of the compensator transformer secondary are simultaneously connected to the 3rd
Probe of contactor and shaping capacitance；The compensator transformer primary side tail end also controls connecting to neutral line by the contact of second contactor
End.
Present invention is generally directed to exceed radius of electricity supply in the part remote districts that power, terminal voltage is difficult to ensure that, power because
Element does not reach requirement, and line loss is big；Power supply quality cannot be met；The equipment can be AC in supply voltage:Mended automatically when 140V
Repay AC:220V, is AC in supply voltage:AC220V is depressured to during 300V automatically；The electricity consumption matter of user terminal is sufficiently ensured
The security of amount and electrical equipment.
Operation principle of the present invention：In present invention work, AC power is exported by compensator transformer (T1) secondary of series connection
To power supply output end, when output supply voltage stabilization exists：The device is failure to actuate when in AC220V ± 10%；Work as output voltage
When below or above AC220V ± 10%, the device triggers IGBT high frequency pumpings loop by intelligent driven controlling system
The primary side of compensator transformer (T1) is encouraged to realize whole voltage stabilizing process.
Innovative point of the invention is：1）Harmonics restraint inductance is connected in 4 IGB of input power live wire and chop control
L1, the effect of harmonics restraint inductance L1 is：High-frequency harmonic inside its system and device is filtered, the confession of external electrical network is not influenceed
Electricity quality.2）In the tail end connection first contactor (KM1 of compensator transformer (T1) primary side）Contact, input power is introduced and is mended
Repay；When input supply voltage is higher than 242V, step-down scope can be expanded；It is also connected with the tail end of compensator transformer (T1) primary side
Second contactor (KM2）Contact, by the tail end connecting to neutral of compensator transformer (T1) primary side；Below 198V is less than in input supply voltage
When, boosting scope can be expanded；The actual measurement present invention adapts to supply voltage dynamic range can reach 140-300V, substantially exceed existing
There is ± 20% dynamic voltage stabilized range of technology.The present invention is small using contactor coil own loss electric current, and main contact internal resistance is low, carries
Flow is big, and the coefficient of stability is high；Larger save the power consumption of equipment itself.3）The two ends of compensator transformer (T1) secondary simultaneously connect
There is the 3rd contactor (KM3）Contact, its effect is the 3rd contactor (KM3 when not boosting or being depressured）Adhesive will be mended
The bypass of transformer (T1) secondary is repaid, oneself power consumption is reduced hence into standby park mode；In addition, detecting control system certainly
When body has abnormal, compensator transformer (T1) secondary adhesive can also be bypassed, so as to ensure that the continuation of customer power supply.
Brief description of the drawings
Fig. 1 is major loop schematic diagram of the invention.
Fig. 2 is system control block of the invention.
Mark is in figure：T1 compensator transformers；L1 harmonics restraint inductance；L2 High frequency filter inductance；The IGBT of Q1 the；Q2
Two IGBT；The IGBT of Q3 the 3rd；The IGBT of Q4 the 4th；The filter capacitors of C1 first；The filter capacitors of C2 second；C3 shaping capacitances；KM1 first
Contactor；KM2 second contactors；The contactors of KM3 the 3rd；CT current transformers.
Specific embodiment
The present invention is described again with reference to embodiment and its accompanying drawing.
Refer to Fig. 1, a kind of intelligent high-precision voltage stabilizing device of self adaptation dynamic power wide, including 1 compensator transformer
(T1), 4 IGBT and intelligent driven controlling system；Input power live wire connects the head end of compensator transformer (T1) secondary；Input electricity
Source live wire also connects the colelctor electrode and first contactor of an IGBT (Q1) through harmonics restraint inductance (L1)（KM1）, and by first
Contactor (KM1）Contact connect compensator transformer (T1) primary side tail end；First IGBT (Q1) and the 2nd IGBT (Q2) connects, and second
The colelctor electrode of IGBT (Q2) connects the colelctor electrode of High frequency filter inductance (L2) and the 3rd IGBT (Q3) simultaneously；High frequency filter inductance (L2)
Another termination compensator transformer (T1) primary side head end, and be attempted by compensator transformer (T1) primary side two ends second filter
Ripple electric capacity (C2) composition LC High frequency filters loop；The emitter stage of the 3rd IGBT (Q3) connects the emitter stage of the 4th IGBT (Q4), the 4th
The colelctor electrode connecting to neutral line of IGBT (Q4)；It is also in parallel one between IGBT (Q1) colelctor electrodes and the 4th IGBT (Q2) colelctor electrode
First filter capacitor (C1)；The tail end of compensator transformer (T1) secondary connects output end of pressure-stabilizing；The compensator transformer (T1)
The two ends of secondary are simultaneously connected to the 3rd contactor (KM3）Contact and shaping capacitance (C3)；Compensator transformer (T1) the primary side tail
End also passes through second contactor (KM2）Contact control connecting to neutral line end.
First contactor (the KM1）Contact and second contactor (KM2）Contact, by design on control circuit for interlocking,
Or full off-state.
The tail end of compensator transformer (T1) secondary also passes through current transformer（CT）Connect output end of pressure-stabilizing, Current Mutual Inductance
Device（CT）Protection detection circuit in connection intelligent driven controlling system, realizes system protection；When current value exceedes setting for system
When putting value, by analog-to-digital conversion, system self-protection stops output, and alarms.
In 4 described IGBT, it is parallel between the emitter and collector of each IGBT by diode, resistance and electric capacity
The surge absoption loop for being constituted.
Referring to Fig. 2：The intelligent driven controlling system by RM singlechip microprocessors, man-machine interaction button set circuit,
PMW pulsewidth modulations isolated drive circuit and communication interface circuit are constituted；PMW pulsewidth modulations isolated drive circuit and RM single-chip microcomputers are micro-
Processor is independently-powered by insulating power supply, and RM singlechip microprocessors connection man-machine interaction button sets circuit and communication interface；
RM singlechip microprocessors constitute closed loop by protecting detection circuit with PMW pulsewidth modulations isolated drive circuit, IGBT components
PID control；The drive signal of PMW pulsewidth modulation isolated drive circuits connects the control end of IGBT；The voltage letter of output end of pressure-stabilizing
Number by voltage monitoring sample send RM singlechip microprocessors；The current signal of output end of pressure-stabilizing is carried out by protecting detection circuit
Analog-to-digital conversion feeds back to RM singlechip microprocessors.
Compared with prior art, in the present embodiment work, when input voltage deviates, intelligent driven controlling system is defeated from voltage stabilizing
Go out end and take voltage monitoring sample, when detecting output voltage Uo and be not equal to AC220V ± 10%, i.e., such as output voltage Uo is
Second contactor (KM2 during below 198V）Contact adhesive, or output voltage Uo be more than AC242V when first contactor
(KM1）Contact adhesive, the microprocessor in intelligent driven controlling system exports PMW pulse-width signals and is driven to isolation drive plate
It is dynamic, then by PMW signal outputs to IGBT triggering pin；In the positive half cycle of AC power input voltage Ui, with an IGBT (Q1)
Chop control is carried out, afterflow passage is provided to load current with the 3rd IGBT (Q3)；Negative the half of AC power input voltage Ui
In week, chop control is carried out with the 2nd IGBT (Q2), afterflow passage is provided to load current with the 4th IGBT (Q4)；High frequency filter electricity
Sense (L2) and the second filter capacitor (C2) composition High frequency filter, high frequency waves are filtered, and are obtained pure sine wave and are applied to compensation
Transformer (T1) primary side（It is primary）, compensator transformer (T1) secondary（It is secondary）Produce change Δ U, by the Δ U=0 after no-load voltage ratio~
80V voltages are applied in general supply, make total output voltage Uo=Ui ± Δ U to realize the purpose of automatic voltage regulation.
The surge absoption loop of the present embodiment, primarily to protecting IGBT not receive surge impact.The electric current of the present embodiment
Transformer, the current value of moment detection output, when current value exceedes the arranges value of system, system self-protection stops output,
And alarm.
Communication interface of the invention provides RS485 communication interfaces for device, with upper machine communication, is run for monitoring its
State and variable, can lead to the information such as fault category, installation site reflection in time to host computer, staff when system exception
The prompting for crossing host computer just can be directly to in-situ processing problem.
The effect of the shaping capacitance (C3) of the present embodiment is straight-through carrier signal so that the stable not packet loss of carrier signal；And
Compensator transformer (T1) is exported and is filtered, it is ensured that the quality of output waveform.
The voltage sampling standard of the present embodiment：Out-put supply is input to control mainboard with input power sampling, through step-down -12
It is compared by CPU after the analog-to-digital conversion of position, its reference voltage depends on the arranges value of man-machine interface, arranges value and input/output
Value is compared, and PWM pulse-width signals is exported by certain algorithm, using closed loop PID control.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of this patent objective not be departed from
Various changes can be made.
Claims (5)
1. the intelligent high-precision voltage stabilizing device of a kind of self adaptation dynamic power wide, including 1 compensator transformer (T1), 4 IGBT
And intelligent driven controlling system；It is characterized in that：Input power live wire connects the head end of compensator transformer (T1) secondary；Input power fire
Line also connects the colelctor electrode and first contactor of an IGBT (Q1) through harmonics restraint inductance (L1)（KM1）, and by the first contact
Device (KM1）Contact connect compensator transformer (T1) primary side tail end；First IGBT (Q1) and the 2nd IGBT (Q2) connects, the 2nd IGBT
(Q2) colelctor electrode connects the colelctor electrode of High frequency filter inductance (L2) and the 3rd IGBT (Q3) simultaneously；High frequency filter inductance (L2) it is another
One termination compensator transformer (T1) primary side head end, and be attempted by the second filtered electrical of compensator transformer (T1) primary side two ends
Hold (C2) composition LC High frequency filters loop；The emitter stage of the 3rd IGBT (Q3) connects the emitter stage of the 4th IGBT (Q4), the 4th IGBT
(Q4) colelctor electrode connecting to neutral line；It is also in parallel one first between IGBT (Q1) colelctor electrodes and the 4th IGBT (Q2) colelctor electrode
Filter capacitor (C1)；The tail end of compensator transformer (T1) secondary connects output end of pressure-stabilizing；Compensator transformer (T1) secondary
Two ends and be connected to the 3rd contactor (KM3）Contact and shaping capacitance (C3)；Compensator transformer (T1) the primary side tail end is also
By second contactor (KM2）Contact control connecting to neutral line end.
2. the intelligent high-precision voltage stabilizing device of self adaptation according to claim 1 dynamic power wide, it is characterised in that：It is described
First contactor (KM1）Contact and second contactor (KM2）Contact is interlocking state by design on control circuit.
3. the intelligent high-precision voltage stabilizing device of self adaptation according to claim 1 dynamic power wide, it is characterised in that：It is described
The tail end of compensator transformer (T1) secondary also passes through current transformer（CT）Connect output end of pressure-stabilizing, current transformer（CT）Connection intelligence
Protection detection circuit in energy driving control system, realizes system protection；When current value exceedes the arranges value of system, by mould
Number conversion, system self-protection stops output, and alarms.
4. the intelligent high-precision voltage stabilizing device of self adaptation according to claim 1 dynamic power wide, it is characterised in that：It is described
4 IGBT in, the surge being made up of diode, resistance and electric capacity is parallel between the emitter and collector of each IGBT
Absorption circuit.
5. the intelligent high-precision voltage stabilizing device of self adaptation according to claim 1 dynamic power wide, it is characterised in that：It is described
Intelligent driven controlling system sets circuit, PMW pulsewidth modulations isolation drive electricity by RM singlechip microprocessors, man-machine interaction button
Road and communication interface circuit are constituted；PMW pulsewidth modulations isolated drive circuit and RM singlechip microprocessors are by insulating power supply independence
Power supply, RM singlechip microprocessors connection man-machine interaction button sets circuit and communication interface；RM singlechip microprocessors pass through
Protection detection circuit constitutes closed loop PID control with PMW pulsewidth modulations isolated drive circuit, IGBT components；PMW pulsewidth modulations every
Drive signal from drive circuit connects the control end of IGBT；The voltage signal of output end of pressure-stabilizing is sampled by voltage monitoring and send RM
Singlechip microprocessor；The current signal of output end of pressure-stabilizing feeds back to RM single-chip microcomputers by protecting detection circuit to carry out analog-to-digital conversion
Microprocessor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710309287.XA CN106933290B (en) | 2017-05-04 | 2017-05-04 | The intelligent high-precision voltage stabilizing device of adaptive wide dynamic power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309287.XA CN106933290B (en) | 2017-05-04 | 2017-05-04 | The intelligent high-precision voltage stabilizing device of adaptive wide dynamic power |
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| CN106933290A true CN106933290A (en) | 2017-07-07 |
| CN106933290B CN106933290B (en) | 2018-01-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394782A (en) * | 2017-08-09 | 2017-11-24 | 浙江伯飞节能科技有限公司 | A kind of industrial electricity-saving control system and its control method |
| TWI673591B (en) * | 2018-07-31 | 2019-10-01 | 張原銘 | High-voltage automatic voltage regulation adjusting device and adjusting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342912A (en) * | 1980-08-04 | 1982-08-03 | University Patents, Inc. | Apparatus for detecting air disturbances created by low level wind shear |
| CN1087211A (en) * | 1993-07-23 | 1994-05-25 | 王昆生 | Current-regulation type reactive static compensator for automatic constant voltage source |
| US20060006852A1 (en) * | 2004-07-07 | 2006-01-12 | Takeshi Mashiko | DC-DC converter circuit |
| CN201029205Y (en) * | 2006-12-18 | 2008-02-27 | 成都科维科技发展有限公司 | Digital low-voltage compensating device |
| CN104777866A (en) * | 2014-01-09 | 2015-07-15 | 浙江合极电气科技有限公司 | Contactless chopper type voltage stabilizer |
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2017
- 2017-05-04 CN CN201710309287.XA patent/CN106933290B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342912A (en) * | 1980-08-04 | 1982-08-03 | University Patents, Inc. | Apparatus for detecting air disturbances created by low level wind shear |
| CN1087211A (en) * | 1993-07-23 | 1994-05-25 | 王昆生 | Current-regulation type reactive static compensator for automatic constant voltage source |
| US20060006852A1 (en) * | 2004-07-07 | 2006-01-12 | Takeshi Mashiko | DC-DC converter circuit |
| CN201029205Y (en) * | 2006-12-18 | 2008-02-27 | 成都科维科技发展有限公司 | Digital low-voltage compensating device |
| CN104777866A (en) * | 2014-01-09 | 2015-07-15 | 浙江合极电气科技有限公司 | Contactless chopper type voltage stabilizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394782A (en) * | 2017-08-09 | 2017-11-24 | 浙江伯飞节能科技有限公司 | A kind of industrial electricity-saving control system and its control method |
| TWI673591B (en) * | 2018-07-31 | 2019-10-01 | 張原銘 | High-voltage automatic voltage regulation adjusting device and adjusting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106933290B (en) | 2018-01-09 |
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