CN106933290B - The intelligent high-precision voltage stabilizing device of adaptive wide dynamic power - Google Patents
The intelligent high-precision voltage stabilizing device of adaptive wide dynamic power Download PDFInfo
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- CN106933290B CN106933290B CN201710309287.XA CN201710309287A CN106933290B CN 106933290 B CN106933290 B CN 106933290B CN 201710309287 A CN201710309287 A CN 201710309287A CN 106933290 B CN106933290 B CN 106933290B
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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 adaptive wide dynamic power, 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 and adapts to wide dynamic power and high-precision output voltage.
Description
Technical field
The present invention relates to a kind of voltage-stablizer, refers in particular to a kind of intelligent high-precision voltage stabilizing dress of adaptive wide dynamic power
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 can not be met.Stable-pressure device is to ensure the essential component of power supply quality；Coil type on the market at present
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 realizes the function of voltage stabilizing by the respective taps of contactor matrix majorization multi-tap pressure regulator to compensator transformer power supply；This
, the problem of precision of voltage regulation is low be present, and volume is larger in the multi-tap multi-regulator that class stable-pressure device uses；3rd, using connecing
Tentaculum controls；Such compensation circuit response time is excessively slow, can not meet requirement 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
Repay voltage and the reason for ladder grade be present, it is impossible to reach the purpose of high-precision voltage stabilizing output, especially to being wanted with work voltage accuracy
Cisco unity malfunction in the case of asking higher.
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 connects one end of compensator transformer secondary, compensator transformer secondary it is another
The first IGBT colelctor electrode is terminated, and connects output end of pressure-stabilizing, the first IGBT and the 2nd IGBT series connection, the 2nd IGBT colelctor electrode connect
The colelctor electrode of inductance and the 4th IGBT, the other end of inductance connect 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 both 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 4th IGBT emitter stage connect the 3rd IGBT emitter stage, the 3rd IGBT colelctor electrode connecting to neutral line.The invention passes through control
The working condition of 4 controllable silicons is made, to control the direction of compensator transformer original edge voltage, so as to obtain required compensation secondary voltage
Δ U size and Orientation, realize output burning voltage.But conducting resistance be present and easily generate heat in controllable silicon, internal system electricity damage compared with
Greatly；The high-frequency harmonic of internal system simultaneously be present, 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 the deficiencies for existing stable-pressure device technology, there is provided a kind of adaptive wide
The intelligent high-precision voltage stabilizing device of dynamic power, it uses chop control technological adjustment offset voltage value, and it is wide dynamic to realize adaptation
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 the colelctor electrode and first contactor that inductance meets the first IGBT, and connects compensator transformer original by the contact of first contactor
Side tail end；First IGBT and the 2nd IGBT series connection, the 2nd IGBT colelctor electrode meet 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 with being attempted by compensator transformer primary side head
The second filter capacitor composition LC High frequency filters loop of tail end；3rd IGBT emitter stage connects the 4th IGBT emitter stage, and the 4th
IGBT colelctor electrode connecting to neutral line；First filtered electrical also in parallel between the first 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 in part power remote districts exceed radius of electricity supply, terminal voltage is difficult to ensure that, power because
Element does not reach requirement, and line loss is big；Power supply quality can not be met；The equipment can be AC in supply voltage:Mended automatically when 140V
Repay AC:220V, it is AC in supply voltage:Automatically AC220V is depressured to during 300V；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, compensator transformer (T1) secondary output of the AC power by 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 excitation compensator transformer (T1) realizes whole voltage stabilizing process.
The innovative point of the present invention is：1）Harmonics restraint inductance is connected in 4 IGB of input power live wire and chop control
L1, harmonics restraint inductance L1 effect are：High-frequency harmonic inside its system and device is filtered out, does not influence the confession of external electrical network
Electricity quality.2）In the tail end connection first contactor (KM1 of compensator transformer (T1) primary side）Contact, input power is introduced and mended
Repay；When input supply voltage is higher than 242V, decompression 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；It is less than below 198V in input supply voltage
When, boosting scope can be expanded；The actual measurement present invention, which 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 mend
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 bypass, so as to ensure that the continuation of customer power supply.
Brief description of the drawings
Fig. 1 is the major loop schematic diagram of the present invention.
Fig. 2 is the system control block of the present invention.
Mark is in figure：T1 compensator transformers；L1 harmonics restraint inductance；L2 High frequency filter inductance；The IGBT of Q1 the first；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.
Embodiment
The present invention is described again with reference to embodiment and its accompanying drawing.
Referring to Fig. 1, a kind of intelligent high-precision voltage stabilizing device of adaptive wide dynamic power, 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 first IGBT (Q1) colelctor electrode and first contactor through harmonics restraint inductance (L1)（KM1）, and pass through first
Contactor (KM1）Contact connect compensator transformer (T1) primary side tail end；First IGBT (Q1) and the 2nd IGBT (Q2) series connection, second
IGBT (Q2) colelctor electrode connects High frequency filter inductance (L2) and the 3rd IGBT (Q3) colelctor electrode 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；3rd IGBT (Q3) emitter stage connects the 4th IGBT (Q4) emitter stage, and the 4th
IGBT (Q4) colelctor electrode connecting to neutral line；It is also in parallel one between the first 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）The protection detection circuit in intelligent driven controlling system is connected, 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 each IGBT emitter and collector by diode, resistance and electric capacity
The surge absoption loop formed.
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 composition；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 are by protecting detection circuit to form closed loop with PMW pulsewidth modulations isolated drive circuit, IGBT components
PID control；The drive signal connection IGBT of PMW pulsewidth modulation isolated drive circuits control terminal；The voltage letter of output end of pressure-stabilizing
Number by voltage monitoring sampling send RM singlechip microprocessors；The current signal of output end of pressure-stabilizing is by protecting detection circuit to carry out
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 that output voltage Uo is not equal to AC220V ± 10%, i.e., be such as that output voltage Uo is
Second contactor (KM2 during below 198V）Contact adhesive, or first contactor when output voltage Uo is more than AC242V
(KM1）Contact adhesive, the microprocessor in intelligent driven controlling system export PMW pulse-width signals and driven to isolation drive plate
It is dynamic, then by triggering pin of the PMW signal outputs to IGBT；In AC power input voltage Ui positive half cycle, with the first 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
Feel (L2) and the second filter capacitor (C2) composition High frequency filter, high frequency waves are filtered out, pure sine wave is obtained and is applied to compensation
Transformer (T1) primary side（It is primary）, compensator transformer (T1) secondary（It is secondary）Produce change Δ U, by Δ U=0 after no-load voltage ratio~
80V voltages are applied in general supply, total output voltage Uo=Ui ± Δ U is realized the purpose of automatic voltage regulation.
The surge absoption loop of the present embodiment, primarily to protecting IGBT not by 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.
The communication interface of the present invention provides RS485 communication interfaces for device, and upper machine communication, for monitoring its operation
State and variable, the information such as fault category, installation site can be reflected in time when system exception and arrive host computer, staff is led to
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 filtered, ensure 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 decompression -12
It is compared after the analog-to-digital conversion of position by CPU, 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 of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Various changes can be made.
Claims (5)
1. a kind of intelligent high-precision voltage stabilizing device of adaptive wide dynamic power, 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 first IGBT (Q1) colelctor electrode and first contactor through harmonics restraint inductance (L1)（KM1）, and pass through the first contact
Device (KM1）Contact connect compensator transformer (T1) primary side tail end；First IGBT (Q1) and the 2nd IGBT (Q2) series connection, the 2nd IGBT
(Q2) colelctor electrode connects High frequency filter inductance (L2) and the 3rd IGBT (Q3) colelctor electrode simultaneously；High frequency filter inductance (L2) it is another
The head end of one termination compensator transformer (T1) primary side, and with being attempted by the second filtered electrical of compensator transformer (T1) primary side two ends
Hold (C2) composition LC High frequency filters loop；3rd IGBT (Q3) emitter stage meets the 4th IGBT (Q4) emitter stage, the 4th IGBT
(Q4) colelctor electrode connecting to neutral line；It is also in parallel one first between the first IGBT (Q1) colelctor electrodes and the 4th IGBT (Q4) 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
Pass through second contactor (KM2）Contact control connecting to neutral line end.
2. the intelligent high-precision voltage stabilizing device of adaptive wide dynamic power according to claim 1, 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 adaptive wide dynamic power according to claim 1, 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）Connect intelligence
Protection detection circuit in energy driving control system, realizes system protection；When current value exceedes the arranges value of system, pass through mould
Number conversion, system self-protection stops output, and alarms.
4. the intelligent high-precision voltage stabilizing device of adaptive wide dynamic power according to claim 1, 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 each IGBT emitter and collector
Absorption circuit.
5. the intelligent high-precision voltage stabilizing device of adaptive wide dynamic power according to claim 1, 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 composition；PMW pulsewidth modulations isolated drive circuit and RM singlechip microprocessors are independent by insulating power supply
Power supply, RM singlechip microprocessors connection man-machine interaction button set circuit and communication interface；RM singlechip microprocessors pass through
Protection detection circuit forms closed loop PID control with PMW pulsewidth modulations isolated drive circuit, IGBT components；PMW pulsewidth modulations every
Drive signal from drive circuit connects IGBT control terminal；The voltage signal of output end of pressure-stabilizing send RM by voltage monitoring sampling
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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| 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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| CN106933290B true CN106933290B (en) | 2018-01-09 |
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| 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 |
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| US4342912A (en) * | 1980-08-04 | 1982-08-03 | University Patents, Inc. | Apparatus for detecting air disturbances created by low level wind shear |
| CN1031306C (en) * | 1993-07-23 | 1996-03-13 | 王昆生 | Current-regulation type reactive static compensator for automatic constant voltage source |
| JP2006025531A (en) * | 2004-07-07 | 2006-01-26 | Seiko Instruments Inc | 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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