CN101963130A - Controller area network (CAN) open communication unit for double-feed wind power converter - Google Patents
Controller area network (CAN) open communication unit for double-feed wind power converter Download PDFInfo
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- CN101963130A CN101963130A CN2010102629202A CN201010262920A CN101963130A CN 101963130 A CN101963130 A CN 101963130A CN 2010102629202 A CN2010102629202 A CN 2010102629202A CN 201010262920 A CN201010262920 A CN 201010262920A CN 101963130 A CN101963130 A CN 101963130A
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- drive circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses a controller area network (CAN) open communication unit for a double-feed wind power converter and relates to a communication unit for the double-feed wind power converter. The unit comprises a CAN open slave station protocol conversion circuit, an RS-232 serial drive circuit and a CAN communication drive circuit, wherein the CAN communication drive circuit is connected with the CAN open slave station protocol conversion circuit; and the CAN open slave station protocol conversion circuit is connected with the RS-232 serial drive circuit. The unit can realize rapid data interaction between an internal main controller of the converter and a main controller of a wind generating set so as to ensure rapid, accurate and stable communication between a power generator main controller and the converter.
Description
(1) technical field
The present invention relates to a kind of data communication units, be specifically related to a kind of double-fed fan motor current transformer communication unit.
(2) background technique
The CANopen agreement is in late 1990s, is developed on the basis of CAL (CAN Application Layer) by CiA tissue (CAN-in-Automation), has just obtained approval widely in Europe and has used once releasing.Repeatedly modification through to CANopen protocol specification text makes stability, real-time, the anti-interference of CANopen agreement all obtain further raising.And CiA constantly releases the equipment sub-protocol at industry-by-industry, makes the CANopen agreement obtain faster development and popularization at industry-by-industry.It not only has the advantage of CAN bus, and also having aspects such as perfect network management, mismanage, real-time Data Transmission and configuration data of device transmission all is that it has successfully established solid foundation.The wind power generating set master controller is communicated by letter with current transformer and is extensively adopted the CANopen agreement at present.
For the double-fed fan motor current transformer, critical component as wind power generating set, simultaneously also a plurality of from one of equipment as whole unit, need to receive in real time the control command of master controller and, finally finish control whole current transformer with the timely stable feedback unit master controller of the Operational Limits of self.
Existing double-fed fan motor current transformer communication unit adopts programmable controller or automation controller able to programme more, and it costs an arm and a leg, and volume is big, and can't embed very easily introducing interference on the inner master board communication line of current transformer.
(3) summary of the invention
The object of the present invention is to provide a kind of shortcoming that overcomes above-mentioned design, can realize the data transfer of the serial data of current transformer fast to the CANopen agreement, with data fast, stable, the safe wind power generating set master controller of uploading, in time be set to a kind of double-fed fan motor current transformer CANopen communication unit of current transformer under the control command with wind power generating set.
The present invention includes CANopen slave station protocol conversion circuitry, RS-232 serial port drive circuit and CAN communication drive circuit, the CAN communication drive circuit is connected with CANopen slave station protocol conversion circuitry, and CANopen slave station protocol conversion circuitry is connected with RS-232 serial port drive circuit.
The present invention also has following feature:
1, described CANopen slave station protocol conversion chip is the XGate-COP10 chip of Zhou Ligong single-chip microcomputer company.
2, described CAN communication drive circuit adopts the CMT8251 chip that causes electronics corporation far away.
3, described RS-232 serial port drive circuit adopts the SP3232EEA chip of SIPEX company.
The present invention can realize that the inner master controller of current transformer is mutual to the rapid data of wind power generating set master controller, thereby the communication of assurance generator master control device and current transformer is quick, accurate and stable.
(4) description of drawings
Fig. 1 is a schematic diagram of the present invention; Wherein 1, the CAN communication drive circuit, 2, CANopen slave station protocol conversion circuitry, 3, RS-232 serial port drive circuit.
Fig. 2 is a circuit diagram of the present invention;
Fig. 3 is a software flow pattern of the present invention.
(5) embodiment
Further specify with reference to the accompanying drawings:
Embodiment 1:
The present invention forms and comprises CANopen slave station protocol conversion circuitry, RS-232 serial port drive circuit and CAN communication drive circuit, the CAN communication drive circuit is connected with CANopen slave station protocol conversion circuitry, and CANopen slave station protocol conversion circuitry is connected with RS-232 serial port drive circuit; Described CANopen slave station protocol conversion chip is the XGate-COP10 chip of Zhou Ligong single-chip microcomputer company; Described CAN communication drive circuit adopts the CMT8251 chip that causes electronics corporation far away; Described RS-232 serial port drive circuit adopts the SP3232EEA chip of SIPEX company
The present invention also has some technical characteristicss like this:
CANopen slave station protocol conversion chip adopts the XGate-COP10 chip of Zhou Ligong single-chip microcomputer company.The inner integrated CANopen slave station protocol stack of XGate-COP10 is followed CiA DS301 V4.02 and is designed, and its integrated function has comprised functions such as network management (NMT), service data (SDO), process data (PDO), mismanage.Also followed simultaneously DS303-3 tutorial light and DS305 layer related protocols such as (LSS) has been set, powerful.All functions are the conformance testing software test by CiA all.The encapsulation of DIP24 has less footprints, makes its easier being integrated in the inner master control system of wind electric converter, and hardware design is simple.
The CAN communication drivers adopts the CMT8251 chip that causes electronics corporation far away, CTM8251 is the general CAN transponder chip that a band is isolated, this chip internal is integrated, and all essential CAN isolate and CAN sending and receiving devices, and these all are integrated in less than on 3 square centimeters the chip.Chip mainly be that logic level transition with the CAN controller is the differential level of CAN bus and the isolation features with DC 2500V, make the stronger antijamming capability of having of whole communication system.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments:
At first, set communicator station address and the baud rate of CANopen respectively by toggle switch SW1, switch SW 3, the CANopen line of application standard is connected JP1 and wind power generating set current transformer CANopen interface then, power at last wait for that with the current transformer master controller generator set control current transformer enters serviceability after XGate-COP10 is carried out initialization after, just can carry out proper communication by serial port data interactive.
Fig. 2 is a circuit diagram of the present invention.CANopen slave station protocol conversion chip (XGate-COP10) is by the serial port drive circuit, with SP3232EEA chip U606 core, receive and send pin and link to each other with the master control borad of current transformer inside, simultaneously also will with user CPU altogether, can communicate.When XGate-COP10 receives the control command of wind power generating set, just can produce one jumps to low level from high level and gets interrupt signal (INT), read corresponding data after by serial ports this moment, and interrupt pin (INT) becomes high level (being idle condition) automatically.Partly adopting CMT8251 chip U2 at CAN interface starting circuit, is the differential level of CAN bus and the isolation features with DC 2500V with the logic level transition of CAN controller.Two led (RUN and ERR) are the CANopen operations and error condition tutorial light that meets CANopen protocol specification DS303-3 document definition.
Fig. 3 is a software flow pattern of the present invention.At first, the inner master control borad of current transformer carries out corresponding initialization operation to the CANopen communication unit, write relevant informations such as user equipment information, node address and baud rate successively, wait for that then wind power generating set places serviceability with the CANopen communication unit, can carry out data interaction according to the communication protocol of both having reserved this moment with the wind power generating set main controller.When in the communication process communication failure taking place, XGate-COP10 chip U607 enters the pre-operation state automatically, and the inner master controller of current transformer this moment just may be read into by serial ports, self carries out corresponding failure and handles.
Claims (4)
1. double-fed fan motor current transformer CANopen communication unit, CANopen slave station protocol conversion circuitry, RS-232 serial port drive circuit and CAN communication drive circuit, it is characterized in that: the CAN communication drive circuit is connected with CANopen slave station protocol conversion circuitry, and CANopen slave station protocol conversion circuitry is connected with RS-232 serial port drive circuit.
2. double-fed fan motor current transformer CANopen communication unit according to claim 1 is characterized in that described CANopen slave station protocol conversion chip is the XGate-COP10 chip of Zhou Ligong single-chip microcomputer company.
3. double-fed fan motor current transformer CANopen communication unit according to claim 1 is characterized in that described CAN communication drive circuit adopts the CMT8251 chip that causes electronics corporation far away.
4. double-fed fan motor current transformer CANopen communication unit according to claim 1 is characterized in that described RS-232 serial port drive circuit adopts the SP3232EEA chip of SIPEX company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102629202A CN101963130A (en) | 2010-08-26 | 2010-08-26 | Controller area network (CAN) open communication unit for double-feed wind power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102629202A CN101963130A (en) | 2010-08-26 | 2010-08-26 | Controller area network (CAN) open communication unit for double-feed wind power converter |
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| CN101963130A true CN101963130A (en) | 2011-02-02 |
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| CN2010102629202A Pending CN101963130A (en) | 2010-08-26 | 2010-08-26 | Controller area network (CAN) open communication unit for double-feed wind power converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573200A (en) * | 2015-12-16 | 2016-05-11 | 大连尚能科技发展有限公司 | Communication apparatus for wind power converter, and communication method |
| CN110138810A (en) * | 2019-06-28 | 2019-08-16 | 阳光电源股份有限公司 | Communications protocol switching method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201127024Y (en) * | 2007-10-30 | 2008-10-01 | 徐州工业职业技术学院 | Two-way CAN bus and RS-232 serial communication interface |
| CN201127031Y (en) * | 2007-11-23 | 2008-10-01 | 谢步明 | CANopen transferring RS485 gateway based on PLCcore-CF54 module |
| CN101478250A (en) * | 2008-12-30 | 2009-07-08 | 中国电力科学研究院 | Energy accumulation current converter for liquid stream battery |
| CN201771675U (en) * | 2010-08-26 | 2011-03-23 | 哈尔滨九洲电气股份有限公司 | Double feed wind energy converter CAN open communication unit |
-
2010
- 2010-08-26 CN CN2010102629202A patent/CN101963130A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201127024Y (en) * | 2007-10-30 | 2008-10-01 | 徐州工业职业技术学院 | Two-way CAN bus and RS-232 serial communication interface |
| CN201127031Y (en) * | 2007-11-23 | 2008-10-01 | 谢步明 | CANopen transferring RS485 gateway based on PLCcore-CF54 module |
| CN101478250A (en) * | 2008-12-30 | 2009-07-08 | 中国电力科学研究院 | Energy accumulation current converter for liquid stream battery |
| CN201771675U (en) * | 2010-08-26 | 2011-03-23 | 哈尔滨九洲电气股份有限公司 | Double feed wind energy converter CAN open communication unit |
Non-Patent Citations (1)
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| 《电子技术应用》 20100424 广州致远电子有限公司 如何快速实现CANopen从站转Modbus网关--基于CANopen协议的XGate-COP10应用 《电子技术应用》2010年第4期16页至17页 1-4 , 第4期 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573200A (en) * | 2015-12-16 | 2016-05-11 | 大连尚能科技发展有限公司 | Communication apparatus for wind power converter, and communication method |
| CN105573200B (en) * | 2015-12-16 | 2019-02-15 | 大连尚能科技发展有限公司 | A kind of communication device and communication means for wind electric converter |
| CN110138810A (en) * | 2019-06-28 | 2019-08-16 | 阳光电源股份有限公司 | Communications protocol switching method and system |
| CN110138810B (en) * | 2019-06-28 | 2022-07-12 | 阳光电源股份有限公司 | Communication protocol switching method and system |
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Application publication date: 20110202 |