CN106504956A - A kind of bi-motor operating mechanism for primary cut-out - Google Patents
A kind of bi-motor operating mechanism for primary cut-out Download PDFInfo
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- CN106504956A CN106504956A CN201710018371.6A CN201710018371A CN106504956A CN 106504956 A CN106504956 A CN 106504956A CN 201710018371 A CN201710018371 A CN 201710018371A CN 106504956 A CN106504956 A CN 106504956A
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- motor
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- outfan
- controller
- primary cut
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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- Control Of Multiple Motors (AREA)
Abstract
The embodiment of the invention discloses a kind of bi-motor operating mechanism for primary cut-out includes：First motor, the second motor, controller and primary cut-out main shaft；The rotating shaft of the first motor is connected with primary cut-out main shaft one end；The rotating shaft of the second motor is connected with the primary cut-out main shaft other end；Controller and the first motor connection；Controller and the second motor connection；Wherein, controller is used for after the first electrical fault is detected, and drives the second motor to proceed to working condition by hot stand-by duty.Embodiment of the present invention mesohigh breaker main shaft is connected with the rotating shaft of two motors, and two motors are standby each other, and after an electrical fault, another motor is devoted oneself to work, and system remains able to normal work, improves the reliability of system.
Description
Technical field
A kind of the present invention relates to high-voltage breaker operation mechanism field, more particularly to bi-motor behaviour for primary cut-out
Motivation structure.
Background technology
As the requirement to power supply reliability of continuous expansion and user of China's electrical network scale is improved constantly, power system pair
The reliability of primary cut-out equipment and intellectualized operation are put forward higher requirement.Primary cut-out is weight in power system
The switchgear that wants, with control and protection dual-use function, the safe operation to power system is significant.Operating mechanism
Used as the main motion parts of primary cut-out, direct drive moving contact of breaker is moved, and is that impact chopper work can
Lean on one of key factor of property and stability.
Conventional operating mechanism mainly has spring operating mechanism, hydraulic actuating mechanism, hydraulic spring mechanism at present, these behaviour
Motivation structure causes which to go out in running due to there is many shortcomings such as parts are more, controllability is poor, complex structure
The frequency of existing failure is higher, so the development of new operating mechanism just seems particularly urgent and important with exploitation.
Spring operating mechanism completes the energy storage to switching-in spring using fractional electric motor, and breaking-closing operating work(does not receive power supply
Voltage influence, is obtained in that higher divide-shut brake speed.Spring operating mechanism fully relies on machine driving, and parts sum is more,
Typically there are up to a hundred parts, and drive mechanism is complex, fault rate is higher, and moving component is more, and unreliable factor is more.Hydraulic pressure is grasped
Motivation structure has that energy is big, hydraulic oil self-lubricating, and Hydraulic Elements light weight and the fast, reliable in action of response speed etc. are a series of excellent
Gesture, but the defect such as many, the element dispersion of the different degrees of presence oil leak of hydraulic actuating mechanism, pipeline.Hydraulic pressure in conjunction with both advantages
Spring mechanism, it have played hydraulic mechanism to the adaptable advantage of high or low power and the advantage of spring energy-storage.These are traditional
Operating mechanism deposits that impulsive force in operation is big, number of components is more, kinetic characteristic dispersibility is big.
With the development of Power Electronic Technique, scholars propose the primary cut-out based on various types of motors and grasp
Motivation structure, these electromotor operating mechanisms, simple structure, moving component greatly reduce, and operating process mechanical stress is little, noise
Little, reliability is of a relatively high, safeguards simply, but when three phase electric machine winding breaks down (short circuit in winding, winding open circuit etc.),
Torque pulsation and loss are significantly increased, and big torque pulsation will have a strong impact on the stroke characteristic of primary cut-out, so as to affect out
The reliability of pass action, when motor driver breaks down, chopper is by cisco unity malfunction.
It is therefore proposed that a kind of fault-tolerant operation that can realize motor, improves the actuating machine of primary cut-out operational reliability
Structure is those skilled in the art's technical issues that need to address.
Content of the invention
A kind of bi-motor operating mechanism for primary cut-out is embodiments provided, in the embodiment of the present invention
Two motors of operating mechanism are standby each other, it is possible to achieve the fault-tolerant operation of motor, improve the operational reliability of primary cut-out.
A kind of bi-motor operating mechanism for primary cut-out is embodiments provided, including：
First motor, the second motor, controller and primary cut-out main shaft；
The rotating shaft of first motor is connected with described primary cut-out main shaft one end；
The rotating shaft of second motor is connected with the primary cut-out main shaft other end；
The controller and first motor connection；
The controller and second motor connection；
Wherein, the controller is used for after first electrical fault is detected, and drives second motor by hot standby
Working condition is proceeded to state.
Preferably, a kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：The
One sensor and second sensor；
The input of the first sensor and first motor connection；
The input of the second sensor and second motor connection.
Preferably, the input connection of the outfan of the first sensor and the controller；
The input connection of the outfan of the second sensor and the controller.
Preferably, a kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：The
One inverter and the second inverter；
The input of first inverter is connected with the outfan of the controller；
The input of second inverter is connected with the outfan of the controller.
Preferably, a kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：Whole
Stream device；
The outfan of the commutator is connected with the input of first inverter, the outfan of the commutator and institute
State the input connection of first sensor；
The outfan of the commutator is connected with the input of second inverter, the outfan of the commutator and institute
State the input connection of second sensor.
Preferably, a kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：The
One power supply and second source；
First power supply is connected with the input of the commutator；
The second source is connected with the input of the commutator.
Preferably, the outfan of first inverter is connected with the stator winding of first motor；
The outfan of second inverter is connected with the stator winding of second motor.
Preferably, the quantity of the commutator is two；
The input of the first commutator is connected with first power supply, the outfan of first commutator and described first
The input connection of inverter, the outfan of first commutator are connected with the input of the first sensor；
The input of the second commutator is connected with the second source, the outfan of second commutator and described second
The input connection of inverter, the outfan of second commutator are connected with the input of the second sensor.
Preferably, the quantity of the controller is two；
The input of the first controller is connected with the outfan of the first sensor, the outfan of first controller
It is connected with the input of first inverter；
The input of second controller is connected with the outfan of the second sensor, the outfan of the second controller
It is connected with the input of second inverter；
Connected by CAN communication bus between first controller and the second controller.
Preferably, first motor and second motor are permagnetic synchronous motor or induction machine or switching magnetic-resistance
Motor.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
Embodiments providing a kind of bi-motor operating mechanism for primary cut-out includes：First motor,
Two motors, controller and primary cut-out main shaft；The rotating shaft of first motor is connected with described primary cut-out main shaft one end；
The rotating shaft of second motor is connected with the primary cut-out main shaft other end；The controller and first motor connect
Connect；The controller and second motor connection；Wherein, the controller is used for detecting first electrical fault
Afterwards, second motor is driven to proceed to working condition by hot stand-by duty.Embodiment of the present invention mesohigh breaker main shaft and two
The rotating shaft of platform motor is connected, and two motors are standby each other, and after an electrical fault, another motor is devoted oneself to work, and system is still
Can normal work, improve the reliability of system.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of structural representation of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention
Figure；
Fig. 2 is that a kind of another structure of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention is shown
It is intended to；
Topological structure schematic diagrams of the Fig. 3 for commutator；
Topological structure schematic diagrams of the Fig. 4 for inverter.
Specific embodiment
A kind of bi-motor operating mechanism for primary cut-out is embodiments provided, in the embodiment of the present invention
Two motors of operating mechanism are standby each other, it is possible to achieve the fault-tolerant operation of motor, improve the operational reliability of primary cut-out.
For enabling the goal of the invention of the present invention, feature, advantage more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, to the embodiment of the present invention in technical scheme be clearly and completely described, it is clear that disclosed below
Embodiment be only a part of embodiment of the invention, and not all embodiment.Embodiment in based on the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Refer to Fig. 1, one of a kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention
Embodiment, including：
First motor, the second motor, controller and primary cut-out main shaft；
The rotating shaft of the first motor is connected with primary cut-out main shaft one end；
The rotating shaft of the second motor is connected with the primary cut-out main shaft other end；
Controller and the first motor connection, controller and the second motor connection, controller are used for controlling the first motor and the
Two motors rotate；
Wherein, controller is used for after the first electrical fault is detected, and drives the second motor to proceed to work by hot stand-by duty
Make state.
A kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：First sensor
And second sensor；
The input of first sensor and the first motor connection, first sensor are used for the correlation behavior for measuring the first motor
Amount；
The input of second sensor and the second motor connection, second sensor are used for the correlation behavior for measuring the second motor
Amount.
Further, the input connection of the outfan and controller of first sensor；
The input connection of the outfan and controller of second sensor.
A kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：First inverter
With the second inverter；
The input of the first inverter is connected with the outfan of controller；
The input of the second inverter is connected with the outfan of controller.
A kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：Commutator；
The outfan of commutator is connected with the input of the first inverter, and the outfan of commutator is defeated with first sensor
Enter end connection；
The outfan of commutator is connected with the input of the second inverter, and the outfan of commutator is defeated with second sensor
Enter end connection.
A kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：First power supply and
Second source；
First power supply is connected with the input of commutator；
Second source is connected with the input of commutator.
Further, the outfan of the first inverter is connected with the stator winding of the first motor；
The outfan of the second inverter is connected with the stator winding of the second motor.
Refer to Fig. 2, a kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention another
Embodiment, including：
First motor, the second motor, controller and primary cut-out main shaft；
The rotating shaft of the first motor is connected with primary cut-out main shaft one end；
The rotating shaft of the second motor is connected with the primary cut-out main shaft other end；
Controller and the first motor connection, controller and the second motor connection, controller are used for controlling the first motor and the
Two motors rotate；
Wherein, controller is used for after the first electrical fault is detected, and drives the second motor to proceed to work by hot stand-by duty
Make state.
A kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：First sensor
And second sensor；
The input of first sensor and the first motor connection, first sensor are used for the correlation behavior for measuring the first motor
Amount；
The input of second sensor and the second motor connection, second sensor are used for the correlation behavior for measuring the second motor
Amount.
In the present embodiment, the amount of sensor measurement includes：Inverter output voltage, inverter output current, commutator
Output DC voltage, machine shaft position and speed.
Further, the input connection of the outfan and controller of first sensor；
The input connection of the outfan and controller of second sensor.
A kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：First inverter
With the second inverter；
The input of the first inverter is connected with the outfan of controller；
The input of the second inverter is connected with the outfan of controller.
In the present embodiment, the topological structure of the first inverter and the second inverter is as shown in figure 4, V1-V6 is opened for IGBT
Device is closed, the outfan of inverter is connected with the stator winding of motor.
In the present embodiment, the quantity of controller is two；
The input of the first controller is connected with the outfan of first sensor, and the outfan of the first controller is inverse with first
Become the input connection of device, wherein, the first controller gathers the output signal of first sensor, and the first inversion given by the first controller
Device sends pwm pulse control signal；
The input of second controller is connected with the outfan of second sensor, and the outfan of second controller is inverse with second
Become the input connection of device, wherein, second controller gathers the output signal of second sensor, and second controller gives the second inversion
Device sends pwm pulse control signal；
Connected by CAN communication bus between first controller and second controller.
A kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：Commutator；
The outfan of commutator is connected with the input of the first inverter, and the outfan of commutator is defeated with first sensor
Enter end connection；
The outfan of commutator is connected with the input of the second inverter, and the outfan of commutator is defeated with second sensor
Enter end connection.
A kind of bi-motor operating mechanism for primary cut-out provided in an embodiment of the present invention also includes：First power supply and
Second source；
First power supply is connected with the input of commutator；
Second source is connected with the input of commutator.
Further, the outfan of the first inverter is connected with the stator winding of the first motor；
The outfan of the second inverter is connected with the stator winding of the second motor.
In the present embodiment, the quantity of commutator is two.
The input of the first commutator is connected with the first power supply, the input of the outfan of the first commutator and the first inverter
End connection, the outfan of the first commutator are connected with the input of first sensor；
The input of the second commutator is connected with second source, the input of the outfan of the second commutator and the second inverter
End connection, the outfan of the second commutator are connected with the input of second sensor.
In the present embodiment, sensor needs the output DC voltage of measurement rectifier.
In the present embodiment, the topological structure of commutator is as shown in figure 3, use three-phase uncontrollable rectifier device, wherein, T
For isolating transformer, using triangle connection, rectifier bridge side adopts Y-connection to transformer frequency response side winding；VD1-VD6 is two
Pole pipe, constitutes three-phase uncontrollable rectifier bridge by them；C is storage capacitor, it is contemplated that the life-span of electric capacity, and electric capacity selects pulsed capacitance；R
For charging resistor；IGCT K is charging resistor by-pass switch；R1For discharge resistance；Air switch K1Switch for discharge resistance.During startup,
IGCT K disconnects, and power supply charges to electric capacity C through charging resistor R, and after electric capacity C voltage is stable, IGCT K is turned on, so as to avoid
Excessive rush of current in charging process.After system-down and input power disconnection, the K1 that closes a switch discharges to electric capacity, can
Got an electric shock with preventing staff's false touch electric capacity.In rectification circuit, IGCT K can be substituted for miniature circuit breaker.
In the present embodiment, the first motor and second motor are permagnetic synchronous motor or induction machine or switch magnetic
Resistance motor.
As shown in Fig. 2 the embodiment of the present invention is made up of two motors and two sets of motor drivers, two motors are respectively mounted
At the two ends of primary cut-out main shaft, the rotating shaft of motor connects the main shaft of primary cut-out, and the main shaft of primary cut-out is by connecting
Bar connects the moving contact of high-voltage switch gear, is rotated by the primary cut-out main shaft that rotarily drives of controlled motor axle, primary cut-out
Main shaft drives moving contact motion by connecting rod, and that realizes primary cut-out turns on and off control.Often set motor driver all by
Three phase supply power supply, commutator, inverter, sensor and controller composition, and the used order wire of two sets of controllers is connected to
Together.
System Working Principle is that, when normally running, the first motor is in running order, and controller is driven according to divide-shut brake order
Dynamic breaker main shaft rotation, the second motor are in hot stand-by duty.When the controller of the first motor detects failure (the first motor
Short circuit in winding or open circuit, the inverter of the first motor are broken down) when, fault message is passed through to lead to by the controller of the first motor
Letter line passes to the controller of the second motor, and the second motor goes to working condition by hot stand-by duty, it is ensured that system normal
Work.During normal operation, it is also possible in running order by the second motor, the first motor is in hot stand-by duty.
Two sets of motor drivers have respective commutator, two sets of drivers share a set of commutator, herein not
Limit.
Two sets of motor drivers have respective controller, two controllers to exchange information by communication, two sets of drivings
The control function of system can be put in the powerful controller of One function, can save communication system to exchange information, herein
Do not limit.
The above, above example only in order to technical scheme to be described, rather than a limitation；Although with reference to front
State embodiment to be described in detail the present invention, it will be understood by those within the art that：Which still can be to front
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of bi-motor operating mechanism for primary cut-out, it is characterised in that include：First motor, the second motor, control
Device processed and primary cut-out main shaft；
The rotating shaft of first motor is connected with described primary cut-out main shaft one end；
The rotating shaft of second motor is connected with the primary cut-out main shaft other end；
The controller and first motor connection；
The controller and second motor connection；
Wherein, the controller is used for after first electrical fault is detected, and drives second motor by stand-by heat shape
State proceeds to working condition.
2. the bi-motor operating mechanism for primary cut-out according to claim 1, it is characterised in that also include：The
One sensor and second sensor；
The input of the first sensor and first motor connection；
The input of the second sensor and second motor connection.
3. the bi-motor operating mechanism for primary cut-out according to claim 2, it is characterised in that described first passes
The input connection of the outfan of sensor and the controller；
The input connection of the outfan of the second sensor and the controller.
4. the bi-motor operating mechanism for primary cut-out according to claim 3, it is characterised in that also include：The
One inverter and the second inverter；
The input of first inverter is connected with the outfan of the controller；
The input of second inverter is connected with the outfan of the controller.
5. the bi-motor operating mechanism for primary cut-out according to claim 4, it is characterised in that also include：Whole
Stream device；
The outfan of the commutator is connected with the input of first inverter, the outfan of the commutator and described
The input connection of one sensor；
The outfan of the commutator is connected with the input of second inverter, the outfan of the commutator and described
The input connection of two sensors.
6. the bi-motor operating mechanism for primary cut-out according to claim 5, it is characterised in that also include：The
One power supply and second source；
First power supply is connected with the input of the commutator；
The second source is connected with the input of the commutator.
7. the bi-motor operating mechanism for primary cut-out according to claim 6, it is characterised in that described first is inverse
The outfan for becoming device is connected with the stator winding of first motor；
The outfan of second inverter is connected with the stator winding of second motor.
8. the bi-motor operating mechanism for primary cut-out according to claim 5, it is characterised in that the commutator
Quantity be two；
The input of the first commutator is connected with first power supply, the outfan of first commutator and first inversion
The input connection of device, the outfan of first commutator are connected with the input of the first sensor；
The input of the second commutator is connected with the second source, the outfan of second commutator and second inversion
The input connection of device, the outfan of second commutator are connected with the input of the second sensor.
9. the bi-motor operating mechanism for primary cut-out according to claim 4, it is characterised in that the controller
Quantity be two；
The input of the first controller is connected with the outfan of the first sensor, the outfan of first controller and institute
State the input connection of the first inverter；
The input of second controller is connected with the outfan of the second sensor, the outfan of the second controller and institute
State the input connection of the second inverter；
Connected by CAN communication bus between first controller and the second controller.
10. the bi-motor operating mechanism for primary cut-out according to claim 1 to 9 any one, its feature exist
Permagnetic synchronous motor or induction machine or switched reluctance machines are in, first motor and second motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018371.6A CN106504956A (en) | 2017-01-10 | 2017-01-10 | A kind of bi-motor operating mechanism for primary cut-out |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018371.6A CN106504956A (en) | 2017-01-10 | 2017-01-10 | A kind of bi-motor operating mechanism for primary cut-out |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107369571A (en) * | 2017-09-11 | 2017-11-21 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism based on multi phase rectifier |
| CN107393737A (en) * | 2017-09-11 | 2017-11-24 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism containing energy storage device |
| CN107393735A (en) * | 2017-09-11 | 2017-11-24 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism based on solid-state transformer |
| CN107393736A (en) * | 2017-09-11 | 2017-11-24 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism with reliable power supply |
| CN107546067A (en) * | 2017-09-11 | 2018-01-05 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism based on commutator transformer |
| CN109119300A (en) * | 2018-10-29 | 2019-01-01 | 无锡尚德益家新能源有限公司 | Photovoltaic DC-to-AC converter switch for the shutdown of direct current branch |
| CN114420512A (en) * | 2021-12-22 | 2022-04-29 | 平高集团有限公司 | Motor-driven high-voltage circuit breaker and driving system thereof |
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| US20020104747A1 (en) * | 2001-02-06 | 2002-08-08 | Turner David Curtis | Motor operator for electric power switch and electric power switches incorporating the same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107369571A (en) * | 2017-09-11 | 2017-11-21 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism based on multi phase rectifier |
| CN107393737A (en) * | 2017-09-11 | 2017-11-24 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism containing energy storage device |
| CN107393735A (en) * | 2017-09-11 | 2017-11-24 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism based on solid-state transformer |
| CN107393736A (en) * | 2017-09-11 | 2017-11-24 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism with reliable power supply |
| CN107546067A (en) * | 2017-09-11 | 2018-01-05 | 广东电网有限责任公司电力科学研究院 | A kind of primary cut-out electric operating mechanism based on commutator transformer |
| CN109119300A (en) * | 2018-10-29 | 2019-01-01 | 无锡尚德益家新能源有限公司 | Photovoltaic DC-to-AC converter switch for the shutdown of direct current branch |
| CN114420512A (en) * | 2021-12-22 | 2022-04-29 | 平高集团有限公司 | Motor-driven high-voltage circuit breaker and driving system thereof |
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Application publication date: 20170315 |