CN106208339A - A kind of compensation motor DC-BANK - Google Patents
A kind of compensation motor DC-BANK Download PDFInfo
- Publication number
- CN106208339A CN106208339A CN201610574576.8A CN201610574576A CN106208339A CN 106208339 A CN106208339 A CN 106208339A CN 201610574576 A CN201610574576 A CN 201610574576A CN 106208339 A CN106208339 A CN 106208339A
- Authority
- CN
- China
- Prior art keywords
- power supply
- phase power
- electric installation
- motor
- shake electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
Abstract
The invention discloses a kind of compensation motor DC-BANK, including electrical network U phase power supply, V phase power supply and W phase power supply, U phase power supply and V phase power supply access motor M by thermorelay FR and catalyst normally opened main contact KM1, W phase power supply connects control circuit, control circuit includes anti-shake electric installation, thermorelay normally closed auxiliary contact FR1, stop button SB2, start button SB1 and the contactor coil KM being serially connected, and start button SB1 is parallel with catalyst normally opened auxiliary contact KM2.The present invention is by accessing anti-shake electric installation in circuit for controlling motor, when electricity occurs shaking in system electrical network, it is provided that circuit for controlling motor normal operating voltage, it is ensured that motor normally works, it is to avoid bigger economic loss；Anti-shake electric installation carries out voltage compensation when under-voltage, reduces running wastage, without the need for switching, decreases the accident potential that power supply switching problem causes.
Description
Technical field
The invention belongs to electroporation field, relate to a kind of DC-BANK, a kind of anti-shake electricity of compensation motor
System.
Background technology
Along with the development of society, people are more and more obvious to the demand of electric power, and the dependence of electric power is got over by some industrial occasions
Coming the biggest, industrial process equipment, when the fault that is short-circuited in electrical power trans mission/distribution system, induction machine startup, thunderbolt, switching manipulation, change
Frequently, during the event such as switching of device and capacitance group, voltage dip can all be caused.Wherein, short trouble, induction machine start and thunder
Hit the main cause being to cause voltage dip.The insulator arc-over that causes during thunderbolt or over the ground electric discharge can make protection device action,
Thus cause supply voltage to drop temporarily.This temporary fall coverage is big, and the persistent period is generally more than 100ms.Motor direct-on-line starting
Time, need from the current value that power supply draws be at full capacity time 500%～800%, when this big electric current flows through system impedance, will
Voltage can be caused to decline suddenly.Short trouble may cause system the most serious the falling of Remote feeding voltage, impact industry
In production process, the normal of electrical equipment to voltage-sensitive works, and even causes serious economic loss.
The direct starting and stopping of motor control, its principle as it is shown in figure 1, cardinal principle to be electric network source U, V, W normal by catalyst
Opening main contact KM1, thermorelay FR and access motor M, W phase is the input power of control circuit, presses when starting button SB1, W phase
Power supply is through thermorelay normally closed auxiliary contact FR1, stop button SB2, start button SB1 to contactor coil KM, catalyst line
Circle KM energising, adhesive catalyst normally opened main contact KM1 and catalyst normally opened auxiliary contact KM2, motor M run.Work as stop button
SB2 presses, contactor coil KM dead electricity, and catalyst normally opened main contact KM1 and catalyst normally opened auxiliary contact KM2 disconnects, motor M
Out of service.
The running voltage of contactor coil KM is AC180V-AC250V, when in motor operation course, when occurring to shake electric, electric
Net voltage drops to rapidly below AC180V, contactor coil KM because not inhaling suction unshakable in one's determination less than the elastic force of release spring
Closing, catalyst normally opened main contact KM1 and catalyst normally opened auxiliary contact KM2 disconnects, and motor M is out of service.
Electrical network rolling electricity causes motor stopping, especially some crucial motor stoppings, and the impact on producing is particularly acute.Every time by
Shake electric in electrical network, the non-programmed halt that crucial motor low-voltage tripping causes, all can cause the biggest economic loss to enterprise, at least
Hundreds of thousands, the most millions of.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that a kind of compensation motor DC-BANK, go out at system electrical network
When revealing existing rolling electricity, it is provided that electric machine control system normal operating voltage, it is to avoid bigger economic loss.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of compensation motor DC-BANK, including electrical network U phase power supply, V phase power supply and W phase power supply, U phase power supply and V
Phase power supply accesses motor M, W phase power supply by thermorelay FR and catalyst normally opened main contact KM1 and connects control circuit, controls electricity
Road includes thermorelay normally closed auxiliary contact FR1, stop button SB2, start button SB1 and the contactor coil being serially connected
KM, start button SB1 is parallel with catalyst normally opened auxiliary contact KM2, and described control circuit also includes anti-shake electric installation, institute
The anti-shake electric installation stated is connected in control circuit, and described W phase power supply connects the input of anti-shake electric installation, described anti-shake electricity
The outfan of device connects thermorelay normally closed auxiliary contact FR1.
Further, described anti-shake electric installation include isolating transformer T1, rectifier bridge ZL, filter capacitor C2, compensate inverse
Become device NB, filter inductance L1, filter capacitor C1, compensator transformer T2, panel KZ and alternating current voltage sampling device U1；
The input of described anti-shake electric installation connects isolating transformer T1, described isolating transformer T1 and connects rectifier bridge
ZL, described rectifier bridge ZL connect filter capacitor C2, described filter capacitor C2 and connect panel KZ and compensate inverter NB, institute
The panel KZ stated connects compensation inverter NB and alternating current voltage sampling device U1, and described compensation inverter NB connects filter inductance
L1, described filter inductance L I connect filter capacitor C1, described filter capacitor C1 and connect compensator transformer T2, described benefit
Repay transformator T2 and alternating current voltage sampling device U1 and be all connected with the outfan of anti-shake electric installation.
Beneficial effects of the present invention: the present invention is by accessing anti-shake electric installation, anti-shake electric installation in circuit for controlling motor
Comprise isolating transformer T1, rectifier bridge ZL, filter capacitor C2, compensate inverter NB, filter inductance L1, filter capacitor C1, compensation
Transformator T2, panel KZ and alternating current voltage sampling device U1, when there is shaking electricity in system electrical network, it is provided that circuit for controlling motor
Normal operating voltage, it is ensured that motor normally works, it is to avoid bigger economic loss；The principle of the most compensation anti-shake electric installation is
Carry out voltage compensation when under-voltage, compare with employing uninterrupted power source mode continuous service, reduce running wastage, and use
Standby Switching power mode is compared, and compensator transformer is serially connected in control circuit, it is not necessary to switching, decreases power supply switching problem
The accident potential caused.
Accompanying drawing explanation
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the circuit diagram of existing electric machine control system.
Fig. 2 is the system circuit diagram of the present invention.
Fig. 3 is the circuit diagram of the anti-shake electric installation of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all other
Embodiment, broadly falls into the scope of protection of the invention.
As in figure 2 it is shown, the invention provides a kind of compensation motor DC-BANK, electric including electrical network U phase power supply, V phase
Source and W phase power supply, wherein, U phase power supply and the driving power supply that V phase power supply is motor M, W phase power supply is the input electricity of control circuit
Source.
U phase power supply and V phase power supply access motor M, W phase power supply by thermorelay FR and catalyst normally opened main contact KM1
Connect control circuit.
Anti-shake electric installation that control circuit includes being serially connected, thermorelay normally closed auxiliary contact FR1, stop button SB2,
Start button SB1 and contactor coil KM, start button SB1 is parallel with catalyst normally opened auxiliary contact KM2, W phase power supply even
Connecing the input of anti-shake electric installation, control circuit connects anti-shake electric installation and picks out end.
When line voltage is normal, pressing start button SB1, W phase power supply is through thermorelay normally closed auxiliary contact FR, stopping
Button SB2, startup button SB1 to catalyst control coil KM, catalyst control coil KM energising, the normally opened master of adhesive catalyst touches
Head KM1 and catalyst normally opened auxiliary contact KM2, motor M run；When electrical network occurs to shake electricity, line voltage declines, anti-shake Denso
Put in control circuit voltage compensation to normal range, keep catalyst normally opened main contact KM1 and the normally opened auxiliary contact of catalyst
KM2 adhesive, it is to avoid the electricity that shakes causes motor stopping, it is achieved the purpose of anti-shake electricity.When pressing stop button SB2, catalyst controls
Coil KM dead electricity, catalyst normally opened main contact KM1 and catalyst normally opened auxiliary contact KM2 disconnect, and motor M is out of service.
Such as: when alternating current input occurs to drop to " the shaking electric " of AC145V from AC220V, and anti-shake electric installation exports
The compensation AC energy of AC75V, the voltage after outfan superposition recovers to AC220, so ensures that output end voltage meets motor
The normal job requirement of control circuit.
As it is shown on figure 3, anti-shake electric installation includes isolating transformer T1, rectifier bridge ZL, filter capacitor C2, compensates inverter
NB, filter inductance L1, filter capacitor C1, compensator transformer T2, panel KZ and alternating current voltage sampling device U1.Anti-shake electric installation
Input connect isolating transformer T1, isolating transformer T1 connect rectifier bridge ZL, rectifier bridge ZL connect filter capacitor C2, filtering
Electric capacity C2 connects panel KZ and compensates inverter NB, panel KZ connection compensation inverter NB and alternating current voltage sampling device U1,
Compensation inverter NB connection filter inductance L1, filter inductance L I connect filter capacitor C1, filter capacitor C1 and connect compensator transformer
T2, compensator transformer T2 and alternating current voltage sampling device U1 are all connected with the outfan of anti-shake electric installation.
During work, W phase power supply is from the input input AC electricity of anti-shake electric installation, through isolating transformer T1, rectifier bridge ZL
With filter capacitor C2, AC energy being converted into unidirectional current, unidirectional current is as the input DC power of compensation inverter NB, simultaneously
For powering to panel KZ；Alternating current voltage sampling device U1 detects the voltage of anti-shake electric installation outfan, when alternating current voltage exists
During normal range, panel KZ does not send driving pwm signal, compensates inverter NB and does not works；When alternating current voltage falls rapidly
Time, panel sends driving pwm signal, compensates inverter NB work, and unidirectional current, through overcompensation inverter NB, is converted into exchange
Electricity, after filtering inductance L1, filter capacitor C1 filtering, then through compensator transformer T2, compensate anti-shake electric installation input and fall
Time under-voltage；Wherein, the height compensating voltage is the data according to alternating current voltage sampling device U1, realizes by controlling pwm signal
's.When alternating current voltage sampling device U1 detects that alternating current voltage returns to normal range, panel does not send driving PWM letter
Number, compensate inverter NB and stop compensating.
Isolating transformer T1, the effect of compensator transformer T2, be on the one hand to adjust main circuit operational voltage level, the opposing party
Face realizes the isolation of compensation device and electrical network, when compensation device breaks down, it is possible to isolation electrical network, does not affect motor and controls electricity
The normal work on road.
The present invention by accessing anti-shake electric installation in circuit for controlling motor, anti-shake electric installation comprise isolating transformer T1,
Rectifier bridge ZL, filter capacitor C2, compensation inverter NB, filter inductance L1, filter capacitor C1, compensator transformer T2, panel KZ
With alternating current voltage sampling device U1, system electrical network occur occur shake electricity time, it is provided that circuit for controlling motor normal operating voltage, it is ensured that
Motor normally works, it is to avoid bigger economic loss；The principle of the most compensation anti-shake electric installation is to carry out electricity when under-voltage
Pressure compensates, and compares with employing uninterrupted power source mode continuous service, reduces running wastage, and uses standby Switching power mode
Comparing, compensator transformer is serially connected in control circuit, it is not necessary to switching, decreases the accident potential that power supply switching problem causes.
In the description of this specification, the description of reference term " embodiment ", " example ", " concrete example " etc. means
Specific features, structure, material or feature in conjunction with this embodiment or example description is contained at least one enforcement of the present invention
In example or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.
And, the specific features of description, structure, material or feature can be to close in any one or more embodiments or example
Suitable mode combines.
Above content is only to present configuration example and explanation, affiliated those skilled in the art couple
Described specific embodiment makes various amendment or supplements or use similar mode to substitute, without departing from invention
Structure or surmount scope defined in the claims, all should belong to protection scope of the present invention.
Claims (2)
1. a compensation motor DC-BANK, including electrical network U phase power supply, V phase power supply and W phase power supply, U phase power supply and V phase
Power supply accesses motor M, W phase power supply by thermorelay FR and catalyst normally opened main contact KM1 and connects control circuit, control circuit
Including the thermorelay being serially connected normally closed auxiliary contact FR1, stop button SB2, start button SB1 and contactor coil KM,
Catalyst normally opened auxiliary contact KM2 it is parallel with in start button SB1, it is characterised in that: described control circuit also includes anti-shake
Electric installation, described anti-shake electric installation is connected in control circuit, and described W phase power supply connects the input of anti-shake electric installation,
The outfan of described anti-shake electric installation connects thermorelay normally closed auxiliary contact FR1.
One the most according to claim 1 compensation motor DC-BANK, it is characterised in that: described anti-shake electric installation
Including isolating transformer T1, rectifier bridge ZL, filter capacitor C2, compensate inverter NB, filter inductance L1, filter capacitor C1, compensation
Transformator T2, panel KZ and alternating current voltage sampling device U1；
The input of described anti-shake electric installation connects isolating transformer T1, described isolating transformer T1 and connects rectifier bridge ZL,
Described rectifier bridge ZL connects filter capacitor C2, described filter capacitor C2 and connects panel KZ and compensate inverter NB, described
Panel KZ connect and compensate inverter NB and alternating current voltage sampling device U1, described compensation inverter NB and connect filter inductance
L1, described filter inductance LI connect filter capacitor C1, described filter capacitor C1 and connect compensator transformer T2, described compensation
Transformator T2 and alternating current voltage sampling device U1 is all connected with the outfan of anti-shake electric installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574576.8A CN106208339B (en) | 2016-07-20 | 2016-07-20 | A kind of compensation motor anti-swing electrical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574576.8A CN106208339B (en) | 2016-07-20 | 2016-07-20 | A kind of compensation motor anti-swing electrical system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106208339A true CN106208339A (en) | 2016-12-07 |
| CN106208339B CN106208339B (en) | 2019-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610574576.8A Active CN106208339B (en) | 2016-07-20 | 2016-07-20 | A kind of compensation motor anti-swing electrical system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767865A (en) * | 2018-07-05 | 2018-11-06 | 安徽省化工设计院 | A kind of fast switch type voltage-sag prevention device of motor |
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Cited By (1)
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| CN108767865A (en) * | 2018-07-05 | 2018-11-06 | 安徽省化工设计院 | A kind of fast switch type voltage-sag prevention device of motor |
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| Publication number | Publication date |
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| CN106208339B (en) | 2019-04-12 |
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