CN202758177U - Current transformer communication system - Google Patents
Current transformer communication system Download PDFInfo
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- CN202758177U CN202758177U CN 201220208852 CN201220208852U CN202758177U CN 202758177 U CN202758177 U CN 202758177U CN 201220208852 CN201220208852 CN 201220208852 CN 201220208852 U CN201220208852 U CN 201220208852U CN 202758177 U CN202758177 U CN 202758177U
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- current transformer
- side controller
- controller
- communication
- communication system
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Abstract
The utility model discloses a current transformer communication system which includes a current transformer generator-side controller, a current transformer grid-side controller, a redundancy controller, a communication protocol conversion device, communication buses, a hardware I/O interface, a blower fan main controller. The current transformer generator-side controller and the current transformer grid-side controller are communicated with each other via a communication bus. The current transformer generator-side controller and the current transformer grid-side controller are communicated with the redundancy controller via a communication bus. The redundancy controller is communicated with the blower fan main controller via the communication protocol conversion device and the hardware I/O interface. In such a manner, the rapid communication between the blower fan main controller and a current transformer is realized. The current transformer communication system is mainly used for the direct-driven grid-connected wind generating set in the distributed power generation field.
Description
Technical field
The utility model relates to the distributed power generation field, in particular to a kind of redundancy control system of direct-drive type grid type wind driven generator set converter.
Background technology
The grid type aerogenerator utilizes wind energy to convert mechanical energy to exactly, converts at last the electric energy to the electrical network close friend to, and realizes being incorporated into the power networks.
The pusher side control main generator generating of current transformer, the net side control of current transformer is incorporated into the power networks, and has the data of a plurality of parameters to exchange between the controller of pusher side and net side, must realize real-time Communication for Power.
The blower fan master controller must be communicated by letter with the net side with the pusher side of current transformer in real time, and sending controling instruction is accepted the pusher side of current transformer and the data of net side simultaneously, to realize maximal power tracing, realizes the output of maximum electric weight.
Summary of the invention
The utility model provides a kind of current transformer communication system, is mainly used in direct-drive type grid type wind power generating set.
For achieving the above object, the utility model composition comprises as follows: current transformer pusher side controller, current transformer net side controller, redundant manipulator, communication protocol conversion device, communication bus, Hardware I/O interface, blower fan master controller.Wherein: communicate by communication bus between the pusher side controller of current transformer and the net side controller.Current transformer pusher side controller is communicated by letter with same redundant manipulator by communication bus with current transformer net side controller, redundant manipulator communicates by a communication protocol conversion device and Hardware I/O interface and blower fan master controller again, thereby has realized the high-speed traffic of blower fan master controller and current transformer.The side that " pusher side " expression is connected with generator, the side that " net side " expression is connected with electrical network.
The fieldbus of communicating by letter between current transformer pusher side controller and the current transformer net side controller adopts the CAN bus.
Current transformer pusher side controller is communicated by letter with same redundant manipulator by the RS485 bus with current transformer net side controller.
Communication protocol conversion device is the communication protocol conversion device that RS485 turns Ethernet.Realized the conversion of MODBUS/485 and MODBUS/TCP agreement.
Current transformer net side controller and current transformer pusher side controller respectively are 1 32 dsp chip.
The blower fan master controller is with the PLC of Ethernet interface or industrial computer.
Redundant manipulator is the dsp chip of 32 of a slices, not only can realize redundancy, the data that the blower fan master controller sends accurately can also be distributed to current transformer net side controller and current transformer pusher side controller.
The beneficial effects of the utility model are, can realize current transformer net side controller, the data interaction between current transformer pusher side controller and the blower fan master controller, thereby guarantee that master controller communicates by letter with current transformer in real time and accurate etc.
Description of drawings:
Fig. 1 is schematic diagram of the present utility model.
Embodiment
For a more detailed description to the utility model below in conjunction with the drawings and specific embodiments:
In conjunction with Fig. 1, the present embodiment comprises: current transformer pusher side controller 1, current transformer net side controller 2, redundant manipulator 3, communication protocol conversion device 4, communication bus comprises: CAN bus 7, RS485 bus 8, RS485 bus 9, industry ethernet 10, Hardware I/O interface 11, blower fan master controller 5.
Current transformer pusher side controller 1 and current transformer pusher side are electrically connected, and current transformer net side controller 2 and current transformer net side are electrically connected.
By adopting the CAN bus to connect, realize communication between current transformer pusher side controller 1 and the current transformer net side controller 2.Adopt CAN communication protocol, the system communication performance is good, and reliability is high.
Current transformer pusher side controller 1 is communicated by letter with blower fan master controller 5 with current transformer net side controller 2, first by a redundant manipulator 3, again by a communication protocol conversion device 4, realizes communicating by letter with blower fan master controller 5 usefulness at last.Wherein: current transformer pusher side controller 1 and current transformer net side controller 2 adopt RS485 bus 8 to the communication bus between the redundant manipulator 3; Communication bus between redundant manipulator 3 and the communication protocol conversion device 4 or RS485 bus 9; Communication protocol conversion device 4 turns the communication protocol conversion device of Ethernet for RS485, realized the conversion of MODBUS/485 and MODBUS/TCP agreement; Communication protocol conversion device 4 and blower fan master controller 5 are to have adopted the MODBUS/TCP agreement to communicate, blower fan master controller 5 is by to the monitoring to current transformer 6 of the implementing reading and writing of current transformer 6 corresponding registers, wherein blower fan master controller 5 is client, and communication protocol conversion device 4 is server.Thereby realized blower fan master controller 5, current transformer pusher side controller 1, the mutually intercommunication between current transformer net side controller 2 and the redundant manipulator 3 four.
The fieldbus of communicating by letter between current transformer 6 and the blower fan master controller 5 adopts industry ethernet 10 communications, and system performance is good, and reliability is high.Now many blower fan master controllers all carry Ethernet interface, adopt MODBUS/TCP communication protocol, can directly utilize these Ethernet interfaces to carry out communication based on the MODBUS/TCP agreement, and need not to buy other special communication module, and amount of communication data is large, can reduce user's cost.
RS485 turns communication protocol conversion device 4 stable performances of Ethernet, and reaction can be changed the data of MODBUS/485 communication protocol and MODBUS/TCP communication protocol fast fast.
Current transformer pusher side controller 1 and current transformer net side controller 2 have been write the RS485 serial communication program based on the MODBUS agreement for respectively being 1 32 bit DSP chip, can finish the data that need and send, and receive the functions such as Storage and Processing.
Claims (9)
1. current transformer communication system, it is characterized in that, comprise current transformer pusher side controller, current transformer net side controller, redundant manipulator, communication protocol conversion device, communication bus, Hardware I/O interface, blower fan master controller, wherein: connect by communication bus between described current transformer pusher side controller and the current transformer net side controller; Described current transformer pusher side controller and current transformer net side controller connect by communication bus and redundant manipulator, redundant manipulator connects with the blower fan master controller by communication protocol conversion device and Hardware I/O interface again, thereby has realized the high-speed traffic of blower fan master controller and current transformer.
2. current transformer communication system according to claim 1 is characterized in that, the fieldbus of communicating by letter between current transformer pusher side controller and the current transformer net side controller adopts the CAN bus.
3. current transformer communication system according to claim 1 is characterized in that, current transformer pusher side controller is communicated by letter with redundant manipulator by the RS485 bus with current transformer net side controller.
4. current transformer communication system according to claim 1 is characterized in that, described communication protocol conversion device is the communication protocol conversion device that RS485 turns Ethernet.
5. current transformer communication system according to claim 1 is characterized in that, described current transformer pusher side controller and current transformer net side controller are dsp chip.
6. current transformer communication system according to claim 5 is characterized in that, described dsp chip is 32 dsp chip.
7. current transformer communication system according to claim 1 is characterized in that, described blower fan master controller is PLC or the industrial computer with Ethernet interface.
8. current transformer communication system according to claim 1, it is characterized in that, described redundant manipulator is dsp chip, not only can realize redundancy, the data that the blower fan master controller sends accurately can also be distributed to current transformer net side controller and current transformer pusher side controller.
9. current transformer communication system according to claim 8 is characterized in that, described dsp chip is 32 dsp chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208852 CN202758177U (en) | 2012-05-10 | 2012-05-10 | Current transformer communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208852 CN202758177U (en) | 2012-05-10 | 2012-05-10 | Current transformer communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202758177U true CN202758177U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220208852 Expired - Fee Related CN202758177U (en) | 2012-05-10 | 2012-05-10 | Current transformer communication system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202758177U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103699074A (en) * | 2013-12-11 | 2014-04-02 | 南车株洲电力机车研究所有限公司 | CAN (Controller Area Network) communication control device in converter and communication method |
| CN107357162A (en) * | 2017-06-30 | 2017-11-17 | 镇江赛尔尼柯自动化有限公司 | Universal water inlet detecting and warning system |
| CN110488743A (en) * | 2019-08-30 | 2019-11-22 | 上海电气富士电机电气技术有限公司 | A kind of Wind turbines communication system |
-
2012
- 2012-05-10 CN CN 201220208852 patent/CN202758177U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103699074A (en) * | 2013-12-11 | 2014-04-02 | 南车株洲电力机车研究所有限公司 | CAN (Controller Area Network) communication control device in converter and communication method |
| CN103699074B (en) * | 2013-12-11 | 2016-06-08 | 南车株洲电力机车研究所有限公司 | CAN communication control device in a kind of current transformer and communication method |
| CN107357162A (en) * | 2017-06-30 | 2017-11-17 | 镇江赛尔尼柯自动化有限公司 | Universal water inlet detecting and warning system |
| CN110488743A (en) * | 2019-08-30 | 2019-11-22 | 上海电气富士电机电气技术有限公司 | A kind of Wind turbines communication system |
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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: 20130227 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |