CN207150435U - More power frequency conversion systems - Google Patents
More power frequency conversion systems Download PDFInfo
- Publication number
- CN207150435U CN207150435U CN201720890837.7U CN201720890837U CN207150435U CN 207150435 U CN207150435 U CN 207150435U CN 201720890837 U CN201720890837 U CN 201720890837U CN 207150435 U CN207150435 U CN 207150435U
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- China
- Prior art keywords
- insulated gate
- gate bipolar
- bipolar transistor
- diode
- inverter
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Abstract
The utility model discloses a kind of more power frequency conversion systems, it includes rectifier, wave filter, the first inverter, the first controller, the first finger-board, the second inverter, second controller, the second finger-board, two three phase electric machine M, the DC output end of rectifier connects the DC input of wave filter by wire, and the DC output end of wave filter connects DC input, the DC input of the second inverter of the first inverter by wire；First controller, a three phase electric machine are all connected with the first inverter, and the first finger-board is connected with the first controller, and second controller, another three phase electric machine are all connected with the second inverter, and the second finger-board is connected with second controller.The utility model wiring is simple, and floor space is small, and cost is low.
Description
Technical field
A kind of frequency conversion system is the utility model is related to, more particularly to a kind of more power frequency conversion systems.
Background technology
Frequency converter is conventional power supply apparatus, and it can raise labour productivity, and improves automation degree of equipment, saves energy
Source, reduce production cost.User selects to be adapted to the frequency converter of oneself according to the technological requirement of oneself and application scenario, and this is also to becoming
Frequency device proposes higher requirement.Some need the shared occasion of more frequency converters, traditional are singly exported if being provided solely for more
Frequency converter can then cause wiring complicated, and floor space is big, the puzzlement such as cost height.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of more power frequency conversion systems, and its wiring is simple, takes up an area
Area is small, and cost is low.
The utility model is that solve above-mentioned technical problem by following technical proposals：A kind of more power frequency conversion systems,
Characterized in that, it includes rectifier, wave filter, the first inverter, the first controller, the first finger-board, the second inverter,
Two controllers, the second finger-board, two three phase electric machine M, the DC output end of rectifier connect the straight of wave filter by wire
Electrical input is flowed, the DC output end of wave filter connects DC input, the second inversion of the first inverter by wire
The DC input of device；First controller, a three phase electric machine are all connected with the first inverter, the first finger-board and the first control
Device connection processed, second controller, another three phase electric machine are all connected with the second inverter, and the second finger-board connects with second controller
Connect.
Preferably, the rectifier is connected with major loop terminal.
Preferably, the rectifier is by the first diode, the second diode, the 3rd diode, the 4th diode, the five or two
Pole pipe, the 6th diode composition, the first diode and the second Diode series, the 3rd diode and the 4th Diode series, the
Five diodes and the 6th Diode series.
Preferably, the structure of first inverter is identical with the structure of the second inverter, the first inverter, the second inversion
Device all include the first insulated gate bipolar transistor, the second insulated gate bipolar transistor, the 3rd insulated gate bipolar transistor,
4th insulated gate bipolar transistor, the 5th insulated gate bipolar transistor, the 6th insulated gate bipolar transistor, the first insulation
The emitter stage of grid bipolar transistor is connected with the colelctor electrode of the second insulated gate bipolar transistor, and the 3rd insulated gate bipolar is brilliant
The emitter stage of body pipe is connected with the colelctor electrode of the 4th insulated gate bipolar transistor, the transmitting of the 5th insulated gate bipolar transistor
Pole is connected with the colelctor electrode of the 6th insulated gate bipolar transistor, the base stage of the first insulated gate bipolar transistor, the second insulation
The base stage of grid bipolar transistor, the base stage of the 3rd insulated gate bipolar transistor, the base of the 4th insulated gate bipolar transistor
Pole, the base stage of the 5th insulated gate bipolar transistor, the base stage of the 6th insulated gate bipolar transistor all with the first controller or
Second controller connects.
Preferably, the wave filter include inductance, the first electric capacity, the second electric capacity, inductance, the first electric capacity, the second electric capacity according to
Secondary series connection.
Positive effect of the present utility model is：The more power frequency conversion system wiring of the utility model are simple, take up an area face
Product is small, and cost is low, reduces the volume of frequency converter, compact in design.The utility model regulation and control are accurate, are swift in response, using energy source
Rate is high, securely and reliably, applied widely.The utility model need to only exchange input all the way, you can produce the completely isolated friendship of multichannel
Stream output, drives multiple electric motors, simplifies the pop wave absorbing circuit of input.Traditional frequency conversion device then needs multichannel sudden-wave absorbing electric
Road.After rectifying and wave-filtering, all inverter common DC bus, therefore a set of rectification charge-discharge circuit is only needed, with traditional frequency conversion device
Compared to having saved cost.Inverter common DC bus has saved electric energy, when a motor stopping, can produce electric energy feedback to directly
Bus is flowed, the motor being currently running can be just supplied to by feeding back to the electric energy of dc bus, save electric energy.The utility model
It is compact-sized, rationally distributed, small volume, using conveniently, cost is saved in the case of offer is high performance.All controllers and
Drive circuit shares a multiple-channel output accessory power supply, simplifies circuit structure, reduces the number of accessory power supply.To load
Say as the frequency converter of multichannel independence, have no relevance electrically mutually.The arrangement of power device of the present utility model is reasonable, is
It is easy to radiating to pull open distance, left and right distribution.Power device shares a radiator, radiator fan is shared, as long as there is a work(
Rate device, which is in working condition fan, to be run always, ensure that good thermal diffusivity.Major loop terminal R, S, T are that multichannel is only
Vertical binding post, separately arrangement, visual and understandable, reduces the possibility of artificial wrong.
Brief description of the drawings
Fig. 1 is the structural representation of the more power frequency conversion systems of the utility model.
Fig. 2 is the circuit diagram of rectifier in the utility model.
Fig. 3 is the first inverter, the circuit diagram of the second inverter in the utility model.
Fig. 4 is the circuit diagram of the utility model median filter.
Embodiment
The utility model preferred embodiment is provided below in conjunction with the accompanying drawings, to describe the technical solution of the utility model in detail.
As shown in figure 1, the more power frequency conversion systems of the utility model include rectifier 6, wave filter 7, the first inverter 8, the
13, two one controller 9, the first finger-board 10, the second inverter 11, second controller 12, the second finger-board three phase electric machine M,
The DC output end of rectifier 6 connects the DC input of wave filter 7, the DC output end of wave filter 7 by wire
DC input, the DC input of the second inverter 11 of the first inverter 8 are connected by wire；First controller 9,
One three phase electric machine M is connected with the first inverter 8, and the first finger-board 10 is connected with the first controller 9, second controller 12,
Another three phase electric machine M is connected with the second inverter 11, and the second finger-board 13 is connected with second controller 12.Rectifier 6 with
Major loop terminal R, S, T are connected, for inputting three-phase alternating current.
As shown in Fig. 2 rectifier 6 is by the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode
D4, the 5th diode D5, the 6th diode D6 compositions, the first diode D1 connect with the second diode D2, the 3rd diode D3
Connected with the 4th diode D4, the 5th diode D5 connects with the 6th diode D6, and rectifier passes through three-phase alternating current electric rectification
Wave filter, become direct current.
As shown in figure 3, the structure of the first inverter is identical with the structure of the second inverter, the first inverter, the second inversion
It is brilliant that device all includes the first insulated gate bipolar transistor Q1, the second insulated gate bipolar transistor Q2, the 3rd insulated gate bipolar
Body pipe Q3, the 4th insulated gate bipolar transistor Q4, the 5th insulated gate bipolar transistor Q5, the 6th insulated gate bipolar crystal
Pipe Q6, the first insulated gate bipolar transistor Q1 emitter stage are connected with the second insulated gate bipolar transistor Q2 colelctor electrode,
3rd insulated gate bipolar transistor Q3 emitter stage is connected with the 4th insulated gate bipolar transistor Q4 colelctor electrode, pentasyllabic quatrain
Edge grid bipolar transistor Q5 emitter stage is connected with the 6th insulated gate bipolar transistor Q6 colelctor electrode, and the first insulated gate is double
Polar transistor Q1 base stage, the second insulated gate bipolar transistor Q2 base stage, the 3rd insulated gate bipolar transistor Q3
Base stage, the 4th insulated gate bipolar transistor Q4 base stage, the 5th insulated gate bipolar transistor Q5 base stage, the 6th insulated gate
Bipolar transistor Q6 base stage is all connected with the first controller or second controller.In first controller, second controller
Under acting on respectively, DC inverter is turned into the controllable three-phase sine-wave of frequency, voltage and exchanged by the first inverter, the second inverter
Electricity.
As shown in figure 4, wave filter 7 includes inductance L, the first electric capacity C1, the second electric capacity C2, inductance L, the first electric capacity C1, the
Two electric capacity C2 are sequentially connected in series.
First controller 9, second controller 12 share a multiple-channel output accessory power supply, and the power device on frequency converter is handed over
Fork is arranged and shared radiator fan.SPWM circuits, PID control circuits are designed with first controller 9, in second controller 12
And memory.The present embodiment in use, can by the first controller 9, second controller 12 control three-phase electricity run in turn and
Stop.Sinusoidal Pulse Width Modulation is provided with controller（That is Sinusoidal Pulse Width Modulation, referred to as
SPWM）Circuit, ratio-integration-differential（That is proportion-integral-derivative, abbreviation PID）Control circuit
And memory.During any one starting of three phases motor, controller sends operating instruction to radiator fan simultaneously, when all three-phase electricities
When machine is out of service, fan can just stop.
Rectifier selects bridge rectifier, and the first inverter, the second inverter all select insulated gate bipolar transistor.
First finger-board and the second finger-board are mainly made up of charactron, drive circuit, button.
The structure of first controller is identical with the structure of second controller, and the first controller and second controller all use
DSP（Digital Signal Processing, Digital Signal Processing）Chip, the model of dsp chip is TMS320F28034.
The utility model only needs a wave filter, and the reactance of wave filter is optional, can improve the power factor of device, reduces
Harmonic pollution of the device to power network.Can be by two binding post copper bar short circuits of reactance when not selecting reactance.
The present embodiment is in use, three-phase alternating current input is inputted three-phase alternating current to rectification by major loop terminal R, S, T
The three-phase alternating current received is converted into bus electricity of the direct current electricity output to wave filter after filtered by device, the rectifier of frequency converter
Pressure is connected to the first inverter, the second inverter, control in the first controller, under the control of second controller, the first inversion
Device, the second inverter are supplied to three phase electric machine after direct current is converted into three-phase alternating current.Three-phase alternating-current supply is connected by wire
The input terminal of more power frequency conversion systems, the lead-out terminal connection three phase electric machine of more power converter plants are connect, the present embodiment takes two
Platform three phase electric machine.The utility model produces the completely isolated exchange of multichannel under conditions of only needing access to exchange input all the way
Output, can drive more three phase electric machines simultaneously.
Particular embodiments described above, to the technical problem, technical scheme and beneficial effect of solution of the present utility model
It is further described, should be understood that and the foregoing is only specific embodiment of the utility model, not
It is all within the spirit and principles of the utility model for limiting the utility model, any modification for being made, equivalent substitution, change
Enter, should be included within the scope of protection of the utility model.
Claims (5)
1. a kind of more power frequency conversion systems, it is characterised in that it includes rectifier, wave filter, the first inverter, the first control
Device, the first finger-board, the second inverter, second controller, the second finger-board, two three phase electric machine M, the direct current of rectifier are defeated
Go out the DC input that end connects wave filter by wire, the DC output end of wave filter connects the first inversion by wire
The DC input of the DC input of device, the second inverter；First controller, a three phase electric machine all with the first inversion
Device is connected, and the first finger-board is connected with the first controller, and second controller, another three phase electric machine all connect with the second inverter
Connect, the second finger-board is connected with second controller.
2. more power frequency conversion systems as claimed in claim 1, it is characterised in that the rectifier is connected with major loop terminal.
3. more power frequency conversion systems as claimed in claim 1, it is characterised in that the rectifier is by the first diode, second
Diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode composition, the first diode and the second diode
Series connection, the 3rd diode and the 4th Diode series, the 5th diode and the 6th Diode series.
4. more power frequency conversion systems as claimed in claim 1, it is characterised in that the structure of first inverter and second inverse
It is identical to become the structure of device, it is double that the first inverter, the second inverter all include the first insulated gate bipolar transistor, the second insulated gate
Polar transistor, the 3rd insulated gate bipolar transistor, the 4th insulated gate bipolar transistor, the 5th insulated gate bipolar transistor
Pipe, the 6th insulated gate bipolar transistor, the emitter stage of the first insulated gate bipolar transistor and the second insulated gate bipolar are brilliant
The colelctor electrode connection of body pipe, the emitter stage of the 3rd insulated gate bipolar transistor and the current collection of the 4th insulated gate bipolar transistor
Pole is connected, and the emitter stage of the 5th insulated gate bipolar transistor is connected with the colelctor electrode of the 6th insulated gate bipolar transistor, the
The base stage of one insulated gate bipolar transistor, the base stage of the second insulated gate bipolar transistor, the 3rd insulated gate bipolar crystal
The base stage of pipe, the base stage of the 4th insulated gate bipolar transistor, the base stage of the 5th insulated gate bipolar transistor, the 6th insulated gate
The base stage of bipolar transistor is all connected with the first controller or second controller.
5. more power frequency conversion systems as claimed in claim 1, it is characterised in that the wave filter include inductance, the first electric capacity,
Second electric capacity, inductance, the first electric capacity, the second electric capacity are sequentially connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720890837.7U CN207150435U (en) | 2017-07-21 | 2017-07-21 | More power frequency conversion systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720890837.7U CN207150435U (en) | 2017-07-21 | 2017-07-21 | More power frequency conversion systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207150435U true CN207150435U (en) | 2018-03-27 |
Family
ID=61676333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720890837.7U Expired - Fee Related CN207150435U (en) | 2017-07-21 | 2017-07-21 | More power frequency conversion systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207150435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286323A (en) * | 2017-07-21 | 2019-01-29 | 上海众辰电子科技有限公司 | More power frequency conversion systems |
-
2017
- 2017-07-21 CN CN201720890837.7U patent/CN207150435U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286323A (en) * | 2017-07-21 | 2019-01-29 | 上海众辰电子科技有限公司 | More power frequency conversion systems |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20180721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |