CN207368919U - Multiwinding machine drive system and elevator system - Google Patents
Multiwinding machine drive system and elevator system Download PDFInfo
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- CN207368919U CN207368919U CN201721442759.0U CN201721442759U CN207368919U CN 207368919 U CN207368919 U CN 207368919U CN 201721442759 U CN201721442759 U CN 201721442759U CN 207368919 U CN207368919 U CN 207368919U
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- disconnecting switch
- switch
- floodgate
- series connection
- frequency converter
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Abstract
The utility model discloses multiwinding machine drive system.Including the first frequency converter (11), the second frequency converter (12), the first disconnecting switch (QS1), the second disconnecting switch (QS2), the first series connection switching switch (QS11), the second series connection switching switch (QS21), first end point disconnecting switch (QS12), the second endpoint disconnecting switch (QS22).When frequency converter works normally, (QS1) and (QS2) closes a floodgate, and (QS11) is disconnected, and (QS12) closes a floodgate.It ensure that motor full carrying row at full speed.During the second 12 failure of frequency converter, (QS1) closes a floodgate, and (QS2) is disconnected, and (QS11) closes a floodgate, and (QS12) is disconnected, and (QS22) closes a floodgate, and (QS21) is disconnected, and motor carries Half Speed operation entirely.During the first 11 failure of frequency converter, (QS1) is disconnected, and (QS2) closes a floodgate, and (QS11) is disconnected, and (QS12) closes a floodgate, and (QS22) is disconnected, and (QS21) closes a floodgate, and motor carries Half Speed operation entirely.
Description
Technical field
It the utility model is related to multiwinding machine drive system and elevator system, more particularly to multiwinding machine drivetrain
The complete operation of system.
Background technology
Constantly expand with production-scale, the raising of the degree of automation, the increase of transmission power, in some cases only
One motor of control cannot meet industrial demand, need the motor of 2 or more than 2 to make at the same time when more
With and the cost of manufacture of two motors is high, volume is big, and optional double-winding motor realizes the requirement of transmission power.
The power of elevator is larger, frequency inverter capacity also need it is larger, using double-winding motor to separate unit frequency inverter capacity
It is required that being reduced to half, the capacity of frequency converter is easily met.
Problem of the prior art is the no redundancy of the driving to winding, and when a frequency converter failure, elevator needs to stop
Machine reduces load capacity, influences to produce.
The purpose of this utility model is that during a frequency converter failure, it is not necessary to shut down or reduce the Multiple coil of load capacity
Motor driven systems and elevator system.
Utility model content
First technical solution of the utility model is multiwinding machine drive system, it is characterised in that including the first frequency conversion
Device (11), the second frequency converter (12),
First disconnecting switch (QS1), the second disconnecting switch (QS2),
First series connection switching switch (QS11), the second series connection switching switch (QS21),
First end point disconnecting switch (QS12), the second endpoint disconnecting switch (QS22),
First frequency converter (11) passes through first disconnecting switch (QS1) and the first winding of multiwinding machine (2)
(21) first end (A1, B1, C1) connection,
Second frequency converter (12) passes through the second disconnecting switch (QS2) and the second winding (22) of multiwinding machine (2)
First end (A2, B2, C2) connection,
The first end (A1, B1, C1) of first winding (21) passes through the described second series connection switching switch (QS21) and institute
Second end (a2, the b2, c2) connection of the second winding (22) is stated,
The first end (A2, B2, C2) of second winding (22) passes through the described first series connection switching switch (QS11) and institute
Second end (a1, the b1, c1) connection of the first winding (21) is stated,
The second end (a1, b1, c1) of first winding (21) is connected with the first end point disconnecting switch (QS12),
The second end (a2, b2, c2) of second winding (22) is connected with the second endpoint disconnecting switch (QS22),
The first series connection switching switch (QS11) and the first end point disconnecting switch (QS12) linkage, first string
When joining switching switch (QS11) disconnection, the first end point disconnecting switch (QS12) is closed a floodgate, the first series connection switching switch
(QS11) when closing a floodgate, the first end point disconnecting switch (QS12) disconnects,
The second endpoint disconnecting switch (QS22) with described second connect switching switch (QS21) linkage, the second end
When point disconnecting switch (QS22) disconnects, the second series connection switching switch (QS21) is closed a floodgate, the second endpoint disconnecting switch
(QS22) when closing a floodgate, the second series connection switching switch (QS21) disconnects,
When first disconnecting switch (QS1) and the second disconnecting switch (QS2) are closed a floodgate, the first series connection switching switch
(QS11) disconnecting, the first end point disconnecting switch (QS12) is closed a floodgate,
First disconnecting switch (QS1) is closed a floodgate, and when the second disconnecting switch (QS2) disconnects, the first series connection switching is opened
Close (QS11) to close a floodgate, the first end point disconnecting switch (QS12) disconnects, and the second endpoint disconnecting switch (QS22) is closed
Lock, the second series connection switching switch (QS21) disconnect,
First disconnecting switch (QS1) disconnects, and when the second disconnecting switch (QS2) is closed a floodgate, the first series connection switching is opened
Close (QS11) to disconnect, the first end point disconnecting switch (QS12) is closed a floodgate, and the second endpoint disconnecting switch (QS22) is disconnected
Open, the second series connection switching switch (QS21) is closed a floodgate.
Second technical solution is based on the first technical solution, it is characterised in that first frequency converter (11), the second frequency converter
(12) dual-machine linkage is realized by optical-fibre communications, ensures the operation of two winding electric machine same frequencys.
3rd technical solution is based on the second technical solution, it is characterised in that first frequency converter (11), the second frequency converter
(12) it is tandem type high voltage converter, its phase-shifting transformer transformer, 6 groups of 580V electricity are transformed into by primary power source voltage 10KV
Pressure, primary side connects for star, and secondary is extend-triangle connection, each vice-side winding phase shift 100；Carried by reactor for power cell
Power supply source, the output voltage superposition output 6KV of the power cell of series connection, for the first winding (21), the second winding of 6KV motor
(22) power supply is provided.
4th technical solution is based on the 3rd technical solution, it is characterised in that further includes the first startup cabinet (31), the second startup
Cabinet (32), first frequency converter (11), the second frequency converter (12) start cabinet (31), the second startup cabinet by described first respectively
(32) power grid is accessed.
5th technical solution is elevator system, it is characterised in that the elevator system include multiwinding machine, more around
Group motor driven systems,
The multiwinding machine drive system is using the multiwinding machine drivetrain described in any one of claims 1 to 4
System.
6th technical solution is based on the 5th technical solution, it is characterised in that high voltage converter governing system is further included, it is described
High voltage converter governing system has four-quadrant energy feedback function, and when elevator declines, the multiwinding machine is in power generation
State, the high voltage converter governing system is by electric energy feedback to power grid.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this practicality
New limitation.
Fig. 1 is the structure chart of multiwinding machine drive system.
Embodiment
The utility model provides many applicable creative concepts, which can be reflected in a large number of specifically
Context in.Tool of the specific embodiment only as the utility model described in the embodiment of following the utility model
The exemplary illustration of body embodiment, without forming the limitation to the scope of the utility model.
Elevator system is by elevator, multiwinding machine, multiwinding machine drive system, high voltage converter governing system structure
Into.
Multiwinding machine 2 is used for the raising and lowering for driving elevator, can not only be lifted using multiwinding machine big negative
Carry, additionally it is possible to reduce cost and volume, reduce the requirement to frequency converter.First winding 21 of multiwinding machine 2 and the second winding
22 are driven by the first frequency converter 11 and the second frequency converter 12 respectively.First frequency converter 11 and the second frequency converter 12 select 1/2 motor
The tandem type high voltage converter of capacity.
High voltage converter governor system control the first frequency converter 11 and the second frequency converter 12, have four-quadrant energy feedback work(
Can, decline in elevator, when motor is in generating state, by electric energy feedback to power grid, there is 100% energy feedback function.It is high
Voltage frequency changer governing system uses vector controlled, there is velocity sensor pattern, rate of current double-closed-loop control.Meet that elevator is each
The service requirement of kind load, and enough startups, braking moment are provided；Meet that elevator carries lifting at full speed, decentralization normally entirely
Service requirement, meets the various elevator service requirements such as low speed operation.High voltage converter governing system can use existing control
System, details are not described herein.
Fig. 1 is the structure chart of multiwinding machine drive system, as shown in Figure 1, multiwinding machine drive system includes first
Frequency converter 11, the second frequency converter 12, the first disconnecting switch QS1, the second disconnecting switch QS2, the first series connection switching switch QS11, the
Two series connection switching switch QS21, first end point disconnecting switch QS 12, the second endpoint disconnecting switch QS22, first start cabinet 31, the
Two start cabinet 32.
First frequency converter 11, the second frequency converter 12 realize dual-machine linkage by optical-fibre communications, ensure two winding electric machines with frequency
Rate is run.
First frequency converter 11, the second frequency converter 12 start cabinet 31, second by first respectively and start 32 and first higher level of cabinet
High-tension switch cabinet QF1, second higher level's high-tension switch cabinet QF2 access power grid.It can effectively suppress the first frequency conversion using cabinet is started
In powered on moment, transformer produces excitation and shoves for device 11, the second frequency converter 12, prevent from causing higher level's high-tension switch cabinet QF (QF1,
QF2) act, can also be the power cell DC capacitor charging in the first frequency converter 11, the second frequency converter 12.
First frequency converter 11, the second frequency converter 12 are tandem type high voltage converter, its phase-shifting transformer transformer, by power grid
Primary power source voltage 10KV be transformed into 6 groups of 580V voltages, primary side connects for star, and secondary is extend-triangle connection, each secondary
Winding phase shift 100；By reactor power supply, the output voltage superposition output of 6 power cells of series connection are provided for power cell
6KV, is that the first winding 21, the second winding 22 of 6KV motor provide power supply.
First disconnecting switch QS1, the second disconnecting switch QS2, the first series connection switching switch QS11, the second series connection switching switch
QS21, first end point disconnecting switch QS12, the second endpoint disconnecting switch QS22 are arranged in double-winding motor switching cabinet 40.
First frequency converter 11 by the first end A1 of the first disconnecting switch QS1 and the first winding 21 of multiwinding machine 2,
B1, C1 are connected.
Second frequency converter 12 by the first end A2 of the second disconnecting switch QS2 and the second winding 22 of multiwinding machine 2,
B2, C2 are connected.
The first end (A1, B1, C1) of first winding 21 pass through the second series connection switching switch QS21 and the second winding 22 the
Two ends (a2, b2, c2) connect.
The first end (A2, B2, C2) of second winding 22 pass through the first series connection switching switch QS11 and the first winding 21 the
Two ends (a1, b1, c1) connect.
The second end (a1, b1, c1) of first winding 21 is connected with first end point disconnecting switch QS12.
The second end (a2, b2, c2) of second winding 22 is connected with the second endpoint disconnecting switch QS22.
First series connection switching switch QS11 and first end point disconnecting switch QS12 linkages, the first series connection switching switch QS11 break
When opening, the first end point disconnecting switch QS12 closes a floodgate, when the first series connection switching switch QS11 closes a floodgate, first end point disconnecting switch
QS12 is disconnected.
Second endpoint disconnecting switch QS22 connects switching switch QS21 linkages with second, and the second endpoint disconnecting switch QS22 breaks
When opening, the second series connection switching switch QS21 closes a floodgate, when the second endpoint disconnecting switch QS22 closes a floodgate, the second series connection switching switch QS21
Disconnect.
When first disconnecting switch QS1 and the second disconnecting switch QS2 closes a floodgate, the first series connection switching switch QS11 is disconnected, and first
Endpoint disconnecting switch QS12 closes a floodgate.
First disconnecting switch QS1 closes a floodgate, and when the second disconnecting switch QS2 is disconnected, the first series connection switching switch QS11 closes a floodgate, the
End point disconnecting switch QS12 is disconnected, and the second endpoint disconnecting switch QS22 closes a floodgate, and the second series connection switching switch QS21 is disconnected.
First disconnecting switch QS1 is disconnected, and when the second disconnecting switch QS2 closes a floodgate, the first series connection switching switch QS11 is disconnected, the
End point disconnecting switch QS12 closes a floodgate, and the second endpoint disconnecting switch QS22 is disconnected, and the second series connection switching switch QS21 closes a floodgate.
Under normal condition, the first frequency converter 11, the second frequency converter 12 drive the simplex winding of double-winding motor 2 to run respectively,
Realize full load full speed running, i.e., the input voltage of each winding is 6KV, running frequency 50HZ.
When a frequency converter breaks down, by switching the first disconnecting switch QS1, the second disconnecting switch QS2, the first string
Join switching switch QS11, the second series connection switching switch QS21, first end point disconnecting switch QS12, the second endpoint disconnecting switch
QS22, realizes that the electromechanical full Half Speed that carries of a frequency converter dragging is run, guarantee continuous production, and each winding input voltage is at this time
3KV, running frequency 25HZ.
Specific switching mode is as follows：The first disconnecting switch QS1 and the second disconnecting switch QS2 closes a floodgate under normal circumstances, and first
Switching switch of connecting QS11 is disconnected, and first end point disconnecting switch QS12 closes a floodgate.At this time, the first frequency converter 11 drags the first winding
21st, the second frequency converter 12 drags the second winding 22 and runs, and realizes full load full speed running.
When the first 11 failure of frequency converter, the second disconnecting switch QS2, the second series connection switching switch QS21, first end point every
Leaving and close QS12 combined floodgates, the first disconnecting switch QS1, the first series connection switching switch QS11, the second endpoint disconnecting switch QS22 are disconnected,
First winding 11, the second winding 12 are dragged by the second frequency converter 12 and carry Half Speed operation entirely.
When the second 12 failure of frequency converter, the first disconnecting switch QS1, the first series connection switching switch QS11, the second endpoint every
Leaving and close QS22 combined floodgates, the second disconnecting switch QS2, the second series connection switching switch QS21, first end point disconnecting switch QS12 are disconnected,
First winding 21, the second winding 22 are dragged by the first frequency converter 11 and carry Half Speed operation entirely.
Therefore, during a frequency converter failure, load capacity need not be reduced before maintenance is completed, people's extract can be still put forward and carry greatly
Part.First series connection switching switch QS11, the disconnecting switch that first end point disconnecting switch QS12 is one group of triple-pole double throw have nature
It is mechanical interlocked, can only one be in closing position.Ensure that operation will not make mistakes.This handover scheme cost low volume is small,
Clear logic, it is easy to operate.
First frequency converter 11, the second frequency converter 12, double-winding motor switching cabinet 40 have certain with higher level's high-tension switch cabinet
Latching relation.
Closing locking：
When first frequency converter 11 drags the first winding 21 state and the first frequency converter 11 of disconnecting switch drag the first winding,
The state of disconnecting switch is in parallel during the second winding, then connects with the first frequency converter 11 " closing a floodgate allows " signal and to seal in higher level's height and press off
Close the closing circuit of cabinet QF1.When failure is thought highly of in frequency conversion, higher level's high-tension switch cabinet QF1 when disconnecting switch is in out of position
Combined floodgate does not allow；Higher level's high-tension switch cabinet QF2 closing lockings.
Disconnect locking：
By frequency converter, " cut-off signal " is parallel to corresponding higher level's high-tension switch cabinet cutoff circuit.Transported in any frequency converter
Under row state, if there is weight failure, corresponding high-tension switch cabinet tripping, disjunction frequency converter high input voltage power supply in the frequency converter.
Close a floodgate and disconnect locking, ensured the safety of frequency converter and motor.Make the protection of whole system relatively reliable, system fortune
Row is more stablized.
From the embodiment of the utility model, in the system, due to using Redundancy Design, improving the reliable of equipment
Property.
Claims (6)
1. multiwinding machine drive system, it is characterised in that including the first frequency converter (11), the second frequency converter (12),
First disconnecting switch (QS1), the second disconnecting switch (QS2),
First series connection switching switch (QS11), the second series connection switching switch (QS21),
First end point disconnecting switch (QS12), the second endpoint disconnecting switch (QS22),
First frequency converter (11) passes through first disconnecting switch (QS1) and the first winding (21) of multiwinding machine (2)
First end (A1, B1, C1) connection,
The of the second winding (22) that second frequency converter (12) passes through the second disconnecting switch (QS2) and multiwinding machine (2)
One end (A2, B2, C2) connects,
The first end (A1, B1, C1) of first winding (21) passes through the described second series connection switching switch (QS21) and described the
Second end (a2, the b2, c2) connection of two windings (22),
The first end (A2, B2, C2) of second winding (22) passes through the described first series connection switching switch (QS11) and described the
Second end (a1, the b1, c1) connection of one winding (21),
The second end (a1, b1, c1) of first winding (21) is connected with the first end point disconnecting switch (QS12),
The second end (a2, b2, c2) of second winding (22) is connected with the second endpoint disconnecting switch (QS22),
The first series connection switching switch (QS11) and the first end point disconnecting switch (QS12) linkage, first series connection are cut
When changing switch (QS11) disconnection, the first end point disconnecting switch (QS12) is closed a floodgate, the first series connection switching switch (QS11)
During combined floodgate, the first end point disconnecting switch (QS12) disconnects,
The second endpoint disconnecting switch (QS22) with described second connect switching switch (QS21) linkage, second endpoint every
When leaving pass (QS22) disconnection, the second series connection switching switch (QS21) is closed a floodgate, the second endpoint disconnecting switch (QS22)
During combined floodgate, the second series connection switching switch (QS21) disconnects,
When first disconnecting switch (QS1) and the second disconnecting switch (QS2) are closed a floodgate, the first series connection switching switch (QS11)
Disconnecting, the first end point disconnecting switch (QS12) is closed a floodgate,
First disconnecting switch (QS1) is closed a floodgate, when the second disconnecting switch (QS2) disconnects, the first series connection switching switch
(QS11) to close a floodgate, the first end point disconnecting switch (QS12) disconnects, and the second endpoint disconnecting switch (QS22) is closed a floodgate,
The second series connection switching switch (QS21) disconnects,
First disconnecting switch (QS1) disconnects, when the second disconnecting switch (QS2) is closed a floodgate, the first series connection switching switch
(QS11) disconnecting, the first end point disconnecting switch (QS12) is closed a floodgate, and the second endpoint disconnecting switch (QS22) disconnects,
The second series connection switching switch (QS21) is closed a floodgate.
2. multiwinding machine drive system according to claim 1, it is characterised in that first frequency converter (11),
Two frequency converters (12) realize dual-machine linkage by optical-fibre communications, ensure the operation of two winding electric machine same frequencys.
3. multiwinding machine drive system according to claim 2, it is characterised in that first frequency converter (11),
Two frequency converters (12) are tandem type high voltage converter, its phase-shifting transformer transformer, 6 groups are transformed into by primary power source voltage 10KV
580V voltages, primary side connect for star, and secondary is extend-triangle connection, each vice-side winding phase shift 100；It is power by reactor
Unit provides power supply, the output voltage superposition output 6KV of the power cell of series connection, be 6KV motor the first winding (21), the
Two windings (22) provide power supply.
4. multiwinding machine drive system according to claim 3, it is characterised in that further include the first startup cabinet (31),
Second starts cabinet (32), and first frequency converter (11), the second frequency converter (12) start cabinet (31), the by described first respectively
Two start cabinet (32) access power grid.
5. elevator system, it is characterised in that the elevator system includes multiwinding machine, multiwinding machine drive system,
The multiwinding machine drive system is using the multiwinding machine drive system described in any one of claims 1 to 4.
6. elevator system according to claim 5, it is characterised in that high voltage converter governing system is further included, it is described
High voltage converter governing system has four-quadrant energy feedback function, and when elevator declines, the multiwinding machine is in power generation
State, the high voltage converter governing system is by electric energy feedback to power grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442759.0U CN207368919U (en) | 2017-11-01 | 2017-11-01 | Multiwinding machine drive system and elevator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442759.0U CN207368919U (en) | 2017-11-01 | 2017-11-01 | Multiwinding machine drive system and elevator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207368919U true CN207368919U (en) | 2018-05-15 |
Family
ID=62345128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721442759.0U Active CN207368919U (en) | 2017-11-01 | 2017-11-01 | Multiwinding machine drive system and elevator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207368919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951136A (en) * | 2019-04-18 | 2019-06-28 | 首钢京唐钢铁联合有限责任公司 | A kind of milling train and its Variable Frequency Drives that supply power with double circuit |
| CN111717358A (en) * | 2020-06-04 | 2020-09-29 | 中船邮轮科技发展有限公司 | Double-winding electric propulsion system and ship |
-
2017
- 2017-11-01 CN CN201721442759.0U patent/CN207368919U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951136A (en) * | 2019-04-18 | 2019-06-28 | 首钢京唐钢铁联合有限责任公司 | A kind of milling train and its Variable Frequency Drives that supply power with double circuit |
| CN109951136B (en) * | 2019-04-18 | 2020-10-09 | 首钢京唐钢铁联合有限责任公司 | Rolling mill and double-circuit power supply variable frequency transmission system thereof |
| CN111717358A (en) * | 2020-06-04 | 2020-09-29 | 中船邮轮科技发展有限公司 | Double-winding electric propulsion system and ship |
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