CN204231203U - A kind of power-converting device of carpet feather planting machine - Google Patents
A kind of power-converting device of carpet feather planting machine Download PDFInfo
- Publication number
- CN204231203U CN204231203U CN201420614541.9U CN201420614541U CN204231203U CN 204231203 U CN204231203 U CN 204231203U CN 201420614541 U CN201420614541 U CN 201420614541U CN 204231203 U CN204231203 U CN 204231203U
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- power converter
- power
- filter circuit
- inverter
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Abstract
The utility model discloses a kind of power-converting device of carpet feather planting machine, comprise the first power converter, the second power converter, current detection sensor, pulsation detection unit, voltage correction unit, reference signal generation unit and controller, wherein the first power converter is connected in series the first filter circuit successively by the output of half-wave rectifying circuit, DC-DC conversion circuit forms, and the second power converter is connected in series the second filter circuit by the output of inverter and forms.The utility model realizes the simplification of cost degradation, control structure.
Description
Technical field
The utility model belongs to field of power conversion, is specifically related to a kind of power-converting device of carpet feather planting machine.
Background technology
The power supply supply converting means of existing carpet feather planting machine still adopts traditional machinery to add electronics conversion, and this converting means mechanism is complicated, and maintenance cost is high, feather planting machine mechanism can be caused to clash into damage if had an accident.
Utility model content
The purpose of this utility model is the defect existed for prior art, provides a kind of power-converting device of carpet feather planting machine.
For achieving the above object, the utility model by the following technical solutions:
The power-converting device of a kind of carpet feather planting machine of the utility model, comprise the first power converter, second power converter, current detection sensor, pulsation detection unit, voltage correction unit, reference signal generation unit and controller, wherein the first power converter is connected in series the first filter circuit successively by the output of half-wave rectifying circuit, DC-DC conversion circuit is formed, second power converter is connected in series the second filter circuit by the output of inverter and forms, the input termination external ac power source of half-wave rectifying circuit, the output terminating load of the second filter circuit, the output of the second filter circuit arranges current detection sensor, the input of the output termination pulsation detection unit of described current detection sensor, the output of pulsation detection unit and reference signal generation unit connects the input of voltage correction unit respectively, the control signal input of inverter is connect after the output serial connection controller of voltage correction unit, the power supply signal input of the output termination inverter of DC-DC conversion circuit.
The utility model is detected by the pulsation of the AC that the original hope of the alternating electromotive force to power converter, alternating voltage suppresses, under the deviation of the constant of the speed of motor and output, motor etc. widely operating condition, motor current pulsation, torque ripple can be suppressed.In addition, owing to being easier to adjustment compared with conventional art, so the time required in adjustment can be shortened, and also do not need voltage detector, so the simplification of cost degradation, control structure can be realized.
Accompanying drawing explanation
Fig. 1 is the utility model structure principle chart.
Embodiment
Details are as follows in conjunction with legend for a specific embodiment of the present utility model:
Fig. 1 have expressed overall architecture of the present utility model.
As shown in Figure 1, the power-converting device of a kind of carpet feather planting machine of the utility model, comprise the first power converter 1, second power converter 2, current detection sensor 3, pulsation detection unit 4, voltage correction unit 5, reference signal generation unit 6 and controller 7, wherein the first power converter 1 is connected in series the first filter circuit 102 successively by the output of half-wave rectifying circuit 101, DC-DC conversion circuit 103 is formed, second power converter 2 is connected in series the second filter circuit 202 by the output of inverter 201 and forms, the input termination external ac power source 9 of half-wave rectifying circuit 101, the output terminating load 8 of the second filter circuit 202, the output of the second filter circuit 202 arranges current detection sensor 3, the input of the output termination pulsation detection unit 4 of described current detection sensor 3, the output of pulsation detection unit 4 and reference signal generation unit 6 connects the input of voltage correction unit 5 respectively, the control signal input of inverter 201 is connect after the output serial connection controller 7 of voltage correction unit 5, the power supply signal input of the output termination inverter 201 of DC-DC conversion circuit 103.Described half-wave rectifying circuit 101 is bridge-type half-wave rectifying circuit.Described controller 7 adopts DSP.
The direct current that wherein external ac power source 9 obtains after half-wave rectifying circuit 101 rectification once exports inverter 201 to after the first filter circuit 102 filtering, DC-DC conversion circuit 103 voltage stabilizing, and direct current is converted to the alternating current of frequency and voltage needed for load 8 by inverter.Pulsation detection unit 4 goes out fluctuating signal for the current signal sub-argument detected by current detection sensor 3, the fluctuating signal that voltage correction unit 5 exports according to pulsation detection unit 4 and the reference voltage signal that reference signal generation unit 6 produces calculate correction signal, controller 7 produces inverter switching device signal according to described correction signal thus feeds back to inverter, adjustment inverter frequency, thus pulsation, the torque ripple of electric current can be reduced.
It is more than a specific embodiment of the present utility model; detailed elaboration has been carried out to general principle of the present utility model and principal character; do not departing under scope of the present utility model and real situation, the change do the utility model and change still belong to protection range of the present utility model.
Claims (1)
1. the power-converting device of a carpet feather planting machine, it is characterized in that comprising the first power converter, second power converter, current detection sensor, pulsation detection unit, voltage correction unit, reference signal generation unit and controller, wherein the first power converter is connected in series the first filter circuit successively by the output of half-wave rectifying circuit, DC-DC conversion circuit is formed, second power converter is connected in series the second filter circuit by the output of inverter and forms, the input termination external ac power source of half-wave rectifying circuit, the output terminating load of the second filter circuit, the output of the second filter circuit arranges current detection sensor, the input of the output termination pulsation detection unit of described current detection sensor, the output of pulsation detection unit and reference signal generation unit connects the input of voltage correction unit respectively, the control signal input of inverter is connect after the output serial connection controller of voltage correction unit, the power supply signal input of the output termination inverter of DC-DC conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614541.9U CN204231203U (en) | 2014-10-22 | 2014-10-22 | A kind of power-converting device of carpet feather planting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614541.9U CN204231203U (en) | 2014-10-22 | 2014-10-22 | A kind of power-converting device of carpet feather planting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204231203U true CN204231203U (en) | 2015-03-25 |
Family
ID=52929252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420614541.9U Expired - Fee Related CN204231203U (en) | 2014-10-22 | 2014-10-22 | A kind of power-converting device of carpet feather planting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204231203U (en) |
-
2014
- 2014-10-22 CN CN201420614541.9U patent/CN204231203U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |