CN203883721U - Oil pumping machine self-starting permanent magnet synchronous motor compensating type voltage regulator - Google Patents
Oil pumping machine self-starting permanent magnet synchronous motor compensating type voltage regulator Download PDFInfo
- Publication number
- CN203883721U CN203883721U CN201420155938.6U CN201420155938U CN203883721U CN 203883721 U CN203883721 U CN 203883721U CN 201420155938 U CN201420155938 U CN 201420155938U CN 203883721 U CN203883721 U CN 203883721U
- Authority
- CN
- China
- Prior art keywords
- contactor
- coil
- normally
- voltage
- control circuit
- 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.)
- Withdrawn - After Issue
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Landscapes
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The utility model discloses an oil pumping machine self-starting permanent magnet synchronous motor compensating type voltage regulator which comprises a starting system and a voltage stabilizing system. The starting system adopts the delta-starting and star-operating type boost starting mode. During starting, a normally open control switch is pressed, a triangular form contactor coil is energized to apply the triangular form boost starting mode on the motor, and at the same time, a bypass contactor coil is energized to bypass the voltage stabilizing system, at this time, a time relay normally-closed contact is closed to start timing, and when the timing time is end, the time relay normally-closed contact is opened, and a normally open contact is closed, and at the same time, the triangular form coil is de-energized, the triangular form contactor normally-closed contact is closed, a star form contactor coil is conducted, the motor is in synchronous running, and the bypass contactor is released to make a voltage stabilizing controller is serially connected into the motor loop and works in a voltage stabilizing manner with a set voltage. Through the above method, according to the utility model, the motor works stably and reliably at the maximum effective set voltage, and the self-starting permanent magnet synchronous motor efficiency and reliability reach the best level.
Description
Technical field
The utility model relates to a kind of field transformer, particularly a kind of compensated voltage regulator of oil pumper self-start permanent magnet synchronous.
Background technology
Present stage, pumping-unit motor is replaced by novel self-start permanent magnet synchronous now gradually.Self-start permanent magnet synchronous is the energy-saving electric machine of up-to-date utility model, the oil pumper of same oil well, can substitute threephase asynchronous machine with the motor of 70% power, synchronous operation motor, not starting device, and the complete method of operation identical with asynchronous machine, simple in structure, easy to operate, energy-conservation and raising power factor.
But, facts have proved that this electric motor starting moment needs to strengthen, the voltage of operation is also just the highest higher than rated voltage efficiency, at voltage difficulty in starting during lower than 340V; During higher than 440V, power factor obviously declines, and has demagnetization phenomenon, line voltage when optimum efficiency (adjustable) between 390V-400V, oil field circuit is long in addition, and operating mode is poor, in view of this, requiring the pressurizer of exploitation compensator transformer type, that the power supply of every pumping-unit motor is carried out to voltage stabilizing is very urgent.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of compensated voltage regulator of oil pumper self-start permanent magnet synchronous, with starting device, can set working voltage, when operation according to setting voltage stable operation.Simple in structure, easy to operate, motor is operated in peak efficiency.Energy-conservation and can improve power factor.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the compensated voltage regulator that a kind of oil pumper self-start permanent magnet synchronous is provided, its input is connected with the power supply of three-phase four-wire system, its output is connected with load, comprising: startup system and compensation voltage-stabilizing system that can setting voltage;
Described startup system comprises: first control circuit, second control circuit, the 3rd control circuit and bypass circuit;
Described first control circuit is by normally closed control switch TA, often open control switch QA and time relay KT coil is in series, be connected to power supply two ends, described time relay KT coil two ends are parallel with auxiliary relay KM coil, and the described control switch QA two ends of often opening are parallel with auxiliary relay KM normally opened contact;
Described second control circuit is in series by described triangular form contactor △ coil and star-like contactor Y normally-closed contact, time relay KT normally-closed contact, is connected to first control circuit two ends;
Described the 3rd control circuit is in series by described star-like contactor Y coil and triangular form contactor △ normally-closed contact, time relay KT normally opened contact, is connected to described second control circuit two ends;
Described bypass circuit is in series by bypass contactor KMO coil and star-like contactor Y normally-closed contact, is connected to the 3rd control circuit two ends;
Described voltage-stabilizing system comprises: multiple voltage-stabilizing controllers parallel with one another, described voltage-stabilizing system is connected between described startup system and power supply by the main electric shock of bypass contactor KMO.
The main contacts of described triangular form contactor △ is connected between power supply and threephase motor, forms the triangular form △ of the threephase motor startup connected mode of boosting;
The main contacts of described star-like contactor Y is connected between power supply and threephase motor, forms the star-like Y low pressure operation connected mode of threephase motor.
In a preferred embodiment of the present utility model, between three phase lines in described three-phase four-wire power supply power supply and the input of described compensated voltage regulator, be connected with circuit breaker KK.
In a preferred embodiment of the present utility model, it is in parallel with star-like contactor Y normally-closed contact that described startup system is also provided with described in current limit relay LJ current limit relay LJ, connects with bypass contactor KMO coil, is connected to power supply two ends.
The beneficial effects of the utility model: the utility model adopts triangle start (motor phase coil 380V startup), star-like operation (motor phase coil 220V operation), the mode of namely boosting and starting, can increase starting resistor; Line voltage (adjustable) between 390V-400V while ensureing motor optimum efficiency, and the power supply of every pumping-unit motor is carried out to voltage stabilizing with the pressurizer of compensator transformer type, possessing has simple in structure, easy to operately, and efficiency is high, reliable feature.
Brief description of the drawings
fig. 1 is the circuit theory diagrams of the compensated voltage regulator of oil pumper self-start permanent magnet synchronous;
Fig. 2 is principle of stabilized voltage figure in voltage-stabilizing controller;
In figure, each assembly and Reference numeral are respectively: 1, startup system, 2, voltage-stabilizing system.
Embodiment
The utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection range of the present utility model is made to more explicit defining.
Include at embodiment of the present utility model:
The compensated voltage regulator of oil pumper self-start permanent magnet synchronous, its input is connected with the power supply of three-phase four-wire system, and its output is connected with load, comprising: startup system 1 and compensation voltage-stabilizing system 2 that can setting voltage.
Described startup system 1 comprises: first control circuit, second control circuit, the 3rd control circuit and bypass circuit;
Described first control circuit is by normally closed control switch TA, often open control switch QA and time relay KT coil is in series, be connected to power supply two ends, described time relay KT coil two ends are parallel with auxiliary relay KM coil, and the described control switch QA two ends of often opening are parallel with auxiliary relay KM normally opened contact;
Described second control circuit is in series by described triangular form contactor △ coil and star-like contactor Y normally-closed contact, time relay KT normally-closed contact, is connected to first control circuit two ends;
Described the 3rd control circuit is in series by described star-like contactor Y coil and triangular form contactor △ normally-closed contact, time relay KT normally opened contact, is connected to described second control circuit two ends;
Described bypass circuit is in series by bypass contactor KMO coil and star-like contactor Y normally-closed contact, is connected to the 3rd control circuit two ends;
Described voltage-stabilizing system 2 comprises: multiple voltage-stabilizing controllers parallel with one another, described voltage-stabilizing system 2 is connected between described startup system 1 and power supply by the main electric shock of bypass contactor KMO.
The main contacts of described triangular form contactor △ is connected between power supply and threephase motor, forms the triangular form of the threephase motor startup connected mode of boosting;
The main contacts of described star-like contactor Y is connected between power supply and threephase motor, forms the star-like brownout operation connected mode of threephase motor.
Between three phase lines in described three-phase four-wire power supply power supply and the input of described compensated voltage regulator, be connected with circuit breaker KK.
Described startup system 1 is also provided with current limit relay LJ, and described current limit relay LJ is in parallel with star-like contactor Y normally-closed contact, connects with bypass contactor KMO coil, is connected to power supply two ends.
As shown in Figure 1, be the integrated circuit schematic diagram of the compensated voltage regulator of oil pumper self-start permanent magnet synchronous in the utility model, its operation principle is as follows:.
Circuit breaker KK closes when startup, press again and often open control switch QA, time relay KT coil, auxiliary relay KM coil obtains electric adhesive, time relay KT normally-closed contact is in closure state, enter timing time, simultaneously bypass contactor KMO coil also electric adhesive, the main contacts of bypass contactor KMO is in closure state, by voltage-stabilizing system bypass, protect it not by heavy current impact, now triangular form contactor △ coil obtains electric adhesive, with triangular form Starting mode (motor phase coil 380V startup) starter motor, after the timing time of time relay K T finishes, the contact upset of time relay KT, the normally-closed contact of time relay KT is disconnected, normally opened contact closure, and the disconnection of the normally-closed contact of time relay KT causes triangular form contactor △ coil losing electricity to disconnect, prevent triangular form contactor △ and star-like contactor Y conducting simultaneously, thereby the normally-closed contact of triangular form contactor is in closure, thereby the star-like contactor Y of conducting coil, now with Y shape brownout operation mode (motor phase coil 220V operation) operated motor, now the normally-closed contact of star-like contactor Y disconnects, bypass contactor KMO coil losing electricity disconnects, bypass contactor KMO main contacts is disconnected, voltage stabilizing work is carried out in voltage-stabilizing system 2 accesses, and in the process of circuit operation, in the time that circuital current is greater than set point, current limit relay LJ closure, bypass circuit is connected, thereby make bypass contactor KMO coil obtain electric adhesive, the main contacts closure of bypass contactor KMO, make voltage-stabilizing system 2 bypasses, the safety of protection voltage-stabilizing system 2.。
As shown in Figure 2, for the principle of stabilized voltage figure in voltage-stabilizing controller, its principle is to use the compensator transformer being connected in electric motor loop as the accessory power supply that regulates motor power, in figure, in the time that D2,3,4,5,6 is respectively D7,8 pipe conducting, the voltage that compensator transformer induction is anti-phase with supply voltage, load terminal voltage reduces the inductive voltage value of compensator transformer than power supply; When D1 is during respectively with D2,3,4,5,6 pipe conducting, the voltage of compensator transformer induction and supply voltage homophase, load terminal voltage, than the inductive voltage value of supply voltage rising compensator transformer, can obtain thus, in the time that power supply is high, the voltage offset the raised area producing on transformer; In the time that supply voltage is low, the voltage producing on transformer supplements low part, thereby realizes the object of voltage stabilization.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a compensated voltage regulator for oil pumper self-start permanent magnet synchronous, its input is connected with the power supply of three-phase four-wire system, and its output is connected with load, it is characterized in that: comprising: startup system and compensation voltage-stabilizing system that can setting voltage;
Described startup system comprises: first control circuit, second control circuit, the 3rd control circuit and bypass circuit;
Described first control circuit is by normally closed control switch TA, often open control switch QA and time relay KT coil is in series, be connected to power supply two ends, described time relay KT coil two ends are parallel with auxiliary relay KM coil, and the described control switch QA two ends of often opening are parallel with auxiliary relay KM normally opened contact;
Described second control circuit is in series by described triangular form contactor △ coil and star-like contactor Y normally-closed contact, time relay KT normally-closed contact, is connected to first control circuit two ends;
Described the 3rd control circuit is in series by described star-like contactor Y coil and triangular form contactor △ normally-closed contact, time relay KT normally opened contact, is connected to described second control circuit two ends;
Described bypass circuit is in series by bypass contactor KMO coil and star-like contactor Y normally-closed contact, is connected to the 3rd control circuit two ends;
Described voltage-stabilizing system comprises: multiple voltage-stabilizing controllers parallel with one another, and described voltage-stabilizing system is connected between described startup system and power supply by the main electric shock of bypass contactor KMO,
The main contacts of described triangular form contactor △ is connected between power supply and threephase motor, and the triangular form △ that forms threephase motor starts connected mode;
The main contacts of described star-like contactor Y is connected between power supply and threephase motor, forms the star-like Y low pressure operation connected mode of threephase motor.
2. the compensated voltage regulator of oil pumper self-start permanent magnet synchronous according to claim 1, is characterized in that: between three phase lines in described three-phase four-wire power supply power supply and the input of described compensated voltage regulator, be connected with circuit breaker KK.
3. the compensated voltage regulator of oil pumper self-start permanent magnet synchronous according to claim 1, it is characterized in that: in described bypass circuit, be also provided with current limit relay LJ, described current limit relay LJ is in parallel with star-like contactor Y normally-closed contact, then connects with bypass contactor KMO coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155938.6U CN203883721U (en) | 2014-04-02 | 2014-04-02 | Oil pumping machine self-starting permanent magnet synchronous motor compensating type voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155938.6U CN203883721U (en) | 2014-04-02 | 2014-04-02 | Oil pumping machine self-starting permanent magnet synchronous motor compensating type voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883721U true CN203883721U (en) | 2014-10-15 |
Family
ID=51684184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420155938.6U Withdrawn - After Issue CN203883721U (en) | 2014-04-02 | 2014-04-02 | Oil pumping machine self-starting permanent magnet synchronous motor compensating type voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203883721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944464A (en) * | 2014-04-02 | 2014-07-23 | 常熟市常源变压器有限公司 | Compensation type voltage stabilizer of pumping unit self-starting permanent magnet synchronous motor |
| CN104935223A (en) * | 2015-07-01 | 2015-09-23 | 上海电机学院 | Switching control system and method for permanent-magnet synchronous motor winding |
-
2014
- 2014-04-02 CN CN201420155938.6U patent/CN203883721U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944464A (en) * | 2014-04-02 | 2014-07-23 | 常熟市常源变压器有限公司 | Compensation type voltage stabilizer of pumping unit self-starting permanent magnet synchronous motor |
| CN103944464B (en) * | 2014-04-02 | 2016-08-31 | 常熟市常源变压器有限公司 | The compensated voltage regulator of oil pumper self-start permanent magnet synchronous |
| CN104935223A (en) * | 2015-07-01 | 2015-09-23 | 上海电机学院 | Switching control system and method for permanent-magnet synchronous motor winding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101860313B (en) | Self-excited synchronous generator alternating current excitation initiating circuit | |
| CN103929107A (en) | Synchronous generator de-excitation circuit | |
| CN104638985A (en) | Asynchronous motor soft starter based on single-chip microcomputer | |
| CN203377777U (en) | A soft start circuit of an auxiliary power supply | |
| CN201369697Y (en) | Device adopting capacitor to start large asynchronous motor | |
| CN203883721U (en) | Oil pumping machine self-starting permanent magnet synchronous motor compensating type voltage regulator | |
| CN204442209U (en) | A kind of motor starting or stopping control circuit | |
| CN102306933A (en) | Short-circuit current limiter with high reliability and method thereof | |
| CN201733261U (en) | Electricity economizing motor Y-delta starter | |
| CN203617935U (en) | Overload starting control device for low-power motor | |
| CN103944464B (en) | The compensated voltage regulator of oil pumper self-start permanent magnet synchronous | |
| CN204906232U (en) | Three -phase asynchronous motor reduced -voltage starting and operation reactive compensation circuit | |
| CN204012645U (en) | Domestic overvoltage protection switch | |
| CN203481834U (en) | Controlling apparatus for improving power factor of three-phase asynchronous alternating-current motor | |
| CN201639534U (en) | Voltage control and electricity-stealing preventing device of pumping unit motor | |
| CN105406771B (en) | Starting protection circuit of single-phase AC load | |
| CN204810181U (en) | A control circuit for motor reduced -voltage starting | |
| CN203840251U (en) | De-excitation circuit of synchronous generator | |
| CN204835500U (en) | Three phase motor lacks looks circuit breaker | |
| CN204131130U (en) | A kind of battery saving arrangement based on intelligent AC electrical network | |
| CN203326941U (en) | Large-scale synchronous motor soft start system | |
| CN203039351U (en) | Submersible pump motor with burn-free temperature controller | |
| CN201315478Y (en) | Three-phase motor circuit with open-phase protection | |
| CN202840680U (en) | Load remote automatic control power supply device | |
| CN203645583U (en) | Autotransformer reduced-voltage starting device used for emergency power supply vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |