CN203800838U - Inverter of inversion digital generator - Google Patents
Inverter of inversion digital generator Download PDFInfo
- Publication number
- CN203800838U CN203800838U CN201420037918.9U CN201420037918U CN203800838U CN 203800838 U CN203800838 U CN 203800838U CN 201420037918 U CN201420037918 U CN 201420037918U CN 203800838 U CN203800838 U CN 203800838U
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Abstract
The utility model relates to the technical field of inverters and discloses an inverter of an inversion digital generator. The inverter comprises a main circuit and a control circuit which are connected with each other. The inverter also comprises a communication circuit connected with the control circuit; the main circuit includes a DC/DC conversion module and an inversion circuit; the control circuit comprises a DSP control chip, a DC bus voltage detection circuit, a current sampling circuit, a voltage sampling circuit, a PWM module, a first A/D conversion circuit, a second A/D conversion circuit, a first SCI interface and a PWM driving circuit; and the communication circuit comprises a communication chip as well as a second SCI interface, an Ethernet interface, a communication interface and a display interface which are arranged on the communication chip, wherein the second SCI interface is connected with the first SCI interface through a signal line, the Ethernet interface is connected with a computer through an Ethernet, and the display interface is connected with an LCD display. According to the inverter of the inversion digital generator of the utility model, the communication circuit is additionally adopted, so that networking control of the inverter can be realized; and the display interface and the LCD display are adopted, so that the working state of the inverter can be observed real time.
Description
Technical field
The utility model relates to inverter technology field, more particularly, and particularly a kind of inverter of inversion digital electricity generating.
Background technology
Development along with generator techniques, for obtaining stable output voltage, in generator, use the inversion digital electricity generating of inverter more and more, general, in order to keep the stable of output voltage, adopt output voltage and electric current to control, as the inverter of the patent No. disclosed digital electricity generating group of Chinese utility model patent that is 2006100385419, it has processes the advantages such as fast.But the shortcoming of its existence is: each inverter can only independently be controlled, and can not realize networking control, when a plurality of inversion digital electricity generatings are when working, and the operating state of inverter in each generator of observation that can not be real-time.Therefore, be necessary the inverter of existing inversion digital electricity generating to improve.
Utility model content
The purpose of this utility model is to provide a kind of inverter of realizing the inversion digital electricity generating of networking control.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of inverter of inversion digital electricity generating, comprise interconnective main circuit and control circuit, and also comprise the communicating circuit being connected with control circuit, described main circuit comprises DC/DC conversion module, inverter circuit, with the three-phase wire of inverter circuit outlet side, is located at three inductance on three-phase wire, described control circuit comprises DSP control chip, be located at the direct current bus voltage detecting circuit on the connecting line of DC/DC conversion module and inverter circuit, be located at current sampling circuit and voltage sampling circuit on three-phase wire, be located at the PWM module in described DSP control chip, the first and second A/D change-over circuits, the one SCI interface, and the PWM drive circuit being connected with PWM module, described direct current bus voltage detecting circuit is connected with an A/D change-over circuit, described PWM module is also connected with inverter circuit, described current sampling circuit is all connected with the 2nd A/D change-over circuit with voltage sampling circuit, described communicating circuit comprises communication chip, be located at the 2nd SCI interface, Ethernet interface, communication interface and display interface on communication chip, described the 2nd SCI interface is connected with a SCI interface by holding wire, described Ethernet interface with by Ethernet, be connected with a computer, described display interface is also connected with a LCD display.
According to a preferred embodiment of the present utility model: described current sampling circuit comprises three Hall current sensors being located on three-phase wire, and described direct current bus voltage detecting circuit and voltage sampling circuit are voltage collector.
Compared with prior art, the beneficial effects of the utility model are: the utility model has increased communicating circuit, in communicating circuit, be provided with Ethernet interface and computer, can make inverter realize the control of networking, be provided with display interface and LCD display simultaneously, realized the operating state of real-time observation inverter.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of the inverter of inversion digital electricity generating of the present utility model.
Fig. 2 is direct current bus voltage detecting circuit in the inverter of inversion digital electricity generating of the present utility model and the circuit structure diagram of voltage sampling circuit.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Consult shown in Fig. 1, the utility model provides a kind of inverter of inversion digital electricity generating, comprises interconnective main circuit and control circuit, also comprises the communicating circuit being connected with control circuit, described main circuit comprises DC/DC conversion module, inverter circuit, with the three-phase wire of inverter circuit outlet side, is located at three inductance on three-phase wire, described control circuit comprises DSP control chip, be located at the direct current bus voltage detecting circuit on the connecting line of DC/DC conversion module and inverter circuit, be located at current sampling circuit and voltage sampling circuit on three-phase wire, be located at the PWM module in described DSP control chip, the first and second A/D change-over circuits, the one SCI interface, and the PWM drive circuit being connected with PWM module, described direct current bus voltage detecting circuit is connected with an A/D change-over circuit, described PWM module is also connected with inverter circuit, described current sampling circuit is all connected with the 2nd A/D change-over circuit with voltage sampling circuit, described communicating circuit comprises communication chip, be located at the 2nd SCI interface, Ethernet interface, communication interface and display interface on communication chip, described the 2nd SCI interface is connected with a SCI interface by holding wire, described Ethernet interface with by Ethernet, be connected with a computer, described display interface is also connected with a LCD display.
In the utility model, DC/DC conversion module, inverter circuit and PWM drive circuit can adopt existing modularized design.
Consult shown in Fig. 2, current sampling circuit described in the utility model comprises three Hall current sensors being located on three-phase wire, can be used for the electric current on real-time detection three-phase wire, described direct current bus voltage detecting circuit and voltage sampling circuit are voltage collector, voltage on can be used on real-time detection DC bus and three-phase wire, DSP control chip can be according to current sampling circuit, the electric current that direct current bus voltage detecting circuit and voltage sampling circuit collect, information of voltage is controlled PWM module and is exported corresponding PWM waveform and control PWM drive circuit and drive the metal-oxide-semiconductor in corresponding inverter circuit to open and close, and then realize the inversion of electric current.
Above-described embodiment is preferably execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.
Claims (2)
1. an inverter for inversion digital electricity generating, comprises interconnective main circuit and control circuit, it is characterized in that: also comprise the communicating circuit being connected with control circuit, described main circuit comprises DC/DC conversion module, inverter circuit, with the three-phase wire of inverter circuit outlet side, is located at three inductance on three-phase wire, described control circuit comprises DSP control chip, be located at the direct current bus voltage detecting circuit on the connecting line of DC/DC conversion module and inverter circuit, be located at current sampling circuit and voltage sampling circuit on three-phase wire, be located at the PWM module in described DSP control chip, the first and second A/D change-over circuits, the one SCI interface, and the PWM drive circuit being connected with PWM module, described direct current bus voltage detecting circuit is connected with an A/D change-over circuit, described PWM module is also connected with inverter circuit, described current sampling circuit is all connected with the 2nd A/D change-over circuit with voltage sampling circuit, described communicating circuit comprises communication chip, be located at the 2nd SCI interface, Ethernet interface, communication interface and display interface on communication chip, described the 2nd SCI interface is connected with a SCI interface by holding wire, described Ethernet interface with by Ethernet, be connected with a computer, described display interface is also connected with a LCD display.
2. the inverter of inversion digital electricity generating according to claim 1, it is characterized in that: described current sampling circuit comprises three Hall current sensors being located on three-phase wire, and described direct current bus voltage detecting circuit and voltage sampling circuit are voltage collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420037918.9U CN203800838U (en) | 2014-01-22 | 2014-01-22 | Inverter of inversion digital generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420037918.9U CN203800838U (en) | 2014-01-22 | 2014-01-22 | Inverter of inversion digital generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800838U true CN203800838U (en) | 2014-08-27 |
Family
ID=51383022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420037918.9U Expired - Fee Related CN203800838U (en) | 2014-01-22 | 2014-01-22 | Inverter of inversion digital generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677949A (en) * | 2017-03-17 | 2017-05-17 | 苏州市双马机电有限公司 | Starting device and method for digital power generator electrically started in reverse dragging manner |
-
2014
- 2014-01-22 CN CN201420037918.9U patent/CN203800838U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677949A (en) * | 2017-03-17 | 2017-05-17 | 苏州市双马机电有限公司 | Starting device and method for digital power generator electrically started in reverse dragging manner |
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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: 20140827 Termination date: 20160122 |
|
| EXPY | Termination of patent right or utility model |