CN102566538B - Communication method for wind generating set - Google Patents
Communication method for wind generating set Download PDFInfo
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- CN102566538B CN102566538B CN2011104494223A CN201110449422A CN102566538B CN 102566538 B CN102566538 B CN 102566538B CN 2011104494223 A CN2011104494223 A CN 2011104494223A CN 201110449422 A CN201110449422 A CN 201110449422A CN 102566538 B CN102566538 B CN 102566538B
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a communication device and a communication method for a wind generating set. The communication device comprises at least one digital signal processor (DSP), wherein each DSP is connected with at least one isolation converter which can be connected with a generator controller or/and a main controller or/and an inverter or/and a monitoring system or/and a man-machine interface; two DSPs communicate with each other; each DSP is connected with a controller area network (CAN) port communication driving circuit; the CAN port communication driving circuit is connected with the CAN port of each DSP; and each DSP is provided with a generator controller data storage area, a main controller data storage area, an inverter data storage area, a monitoring system data storage area and a man-machine interface data storage area. By the communication device and the communication method, an exclusive electric signal pathway can be provided for each communication terminal, and data can be quickly, stably and safely transmitted from one device to another device.
Description
Technical field
The present invention relates to data communication field, relate to or rather a kind of communication means of wind power generating set.
Background technology
The control system of wind power generating set is the core component of wind power generating set, and can its final decision unit normal reliable move efficiently.Wind power generating set comprises master controller, combining inverter and engine controller.Between these devices and all need the data such as a large amount of control commands of real-time exchange and operational factor between these devices and supervisory system.
In the communications field, because RS-485 bus and CAN bus have the advantages such as wiring is simple, reliable and stable, be widely used in the communication between each device of wind power generating set.Adopt the equipment of RS-485 communication to carry out data transmission by converter and the communication facilities that has the CAN mouth.Between the equipment that adopts RS-485 to communicate by letter, the general bus mode that adopts is carried out the data transmission.Between the equipment that adopts CAN to communicate by letter, the same bus mode that adopts is carried out data transmission.Owing to adopting the bus communication mode, can only carry out data communication between two equipment on any moment bus, data rate is slow, poor stability, poor stability.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of can be for each communication terminal provides the pathway for electrical signals exclusively enjoyed, making between each equipment can be fast, stable and transmit safely the communication means of the wind power generating set of data.
A kind of technical solution of the present invention is, a kind of communication means of wind power generating set is provided, and comprises the following steps:
The data receiver district of each storage area is for preserving the data that corresponding device sends to digital signal processor, some variable in the data receiver district of other equipment of pointed that the data transmission interval of each storage area is deposited, the variables collection of all pointed of the data transmission interval of each storage area is the data that digital signal processor sends to corresponding device;
If being respectively used to mark SCIA mouth, SCIB mouth, CAN mouth, variable SCIA_FLAG, SCIB_FLAG, CAN_FLAG whether communicate by letter successfully; SCIA_AD, SCIB_AD, CAN_AD are respectively used to the address that mark SCIA mouth, SCIB mouth, CAN mouth receive information frame, and these addresses have meaned that information frame belongs to the equipment in engine controller, master controller, inverter, supervisory system and man-machine interface;
(1), program starts;
(2), judge whether SCIA_FLAG equals 1; Concrete determining step is as follows:
(1), SCIA interrupts entrance;
(2), the address in reading out data being kept in SCIA_AD;
(3), receive data;
(4), whether judgement reception data length equals information frame data indicating length;
(5), receive data length and equal information frame data indicating length, judge whether CRC check is passed through; Receive data length and be not equal to information frame data indicating length, End of Interrupt;
(6), CRC check passes through, according to SCIA_AD by data storing the data receiver district to the corresponding stored district, SCIA_FLAG equals 1; CRC check is not passed through, and empties all reception data, waits for next information frame;
(7), End of Interrupt;
(3), SCIA_FLAG equals 1, the data that SCIA_AD corresponding stored district data transmission interval is pointed to send by the SCIA mouth; The data in data receiver district send to other digital signal processors by the SPI mouth, make the data of each internal memories of digital signal processors storage identical, and the SCIA_FLAG that resets, make SCIA_FLAG=0; SCIA_FLAG is not equal to 1, jumps to the SCIB mouth;
(4), judge whether SCIB_FLAG equals 1; Concrete determining step is as follows:
(1), SCIB interrupts entrance;
(2), the address in reading out data being kept in SCIB_AD;
(3), receive data;
(4), whether judgement reception data length equals information frame data indicating length;
(5), receive data length and equal information frame data indicating length, judge whether CRC check is passed through; Receive data length and be not equal to information frame data indicating length, End of Interrupt;
(6), CRC check passes through, according to SCIB_AD by data storing the data receiver district to the corresponding stored district, SCIB_FLAG equals 1; CRC check is not passed through, and empties all reception data, waits for next information frame;
(7), End of Interrupt;
(5), SCIB_FLAG equals 1, the data that SCIB_AD corresponding stored district data transmission interval is pointed to send by the SCIB mouth; The data in data receiver district send to other digital signal processors by the SPI mouth, make the data of each internal memories of digital signal processors storage identical, and the SCIB_FLAG that resets, make SCIB_FLAG=0; SCIB_FLAG is not equal to 1, jumps to the CAN mouth;
(6), judge whether CAN_FLAG equals 1; Concrete determining step is as follows:
(1), CAN interrupts entrance;
(2), the address in reading out data being kept in CAN_AD;
(3), receive data;
(4), whether judgement reception data length equals information frame data indicating length;
(5), receive data length and equal information frame data indicating length, judge whether CRC check is passed through; Receive data length and be not equal to information frame data indicating length, End of Interrupt;
(6), CRC check passes through, according to CAN_AD by data storing the data receiver district to the corresponding stored district, CAN_FLAG equals 1; CRC check is not passed through, and empties all reception data, waits for next information frame;
(7), End of Interrupt;
(7), CAN_FLAG equals 1, the data that CAN_AD corresponding stored district data transmission interval is pointed to send by the CAN mouth; The data in data receiver district send to other digital signal processors by the SPI mouth, make the data of each internal memories of digital signal processors storage identical, and the CAN_FLAG that resets, make CAN_FLAG=0; Then return to step (two); CAN_FLAG is not equal to 1, returns to step (two).
The communication means of wind power generating set of the present invention compared with prior art, has the following advantages:
The data that each equipment will be uploaded are put into the data segment of information frame, according to the form of information frame, by RS-485 or CAN mouth, send to digital signal processor.Digital signal processor judges by interrupting information whether SCIA mouth, SCIB mouth or CAN mouth have peripheral hardware to connect and realize data communication.Have no progeny in digital signal processor enters, receive the address code of information frame by judgement, the type of automatic identification equipment, by address code, identifying is which equipment in electric machine controller, master controller, inverter, supervisory system and man-machine interface.When the data length received equals the length of frame length section correspondence in information frame, carry out CRC check.If data, by verification, arrive the deposit data in data segment the data storage area of corresponding device, and this part data is passed through to the SPI port transmission to the another one digital signal processor.After digital signal processor completes data receiver, digital signal processor can read by the pointer of this device data sending area the data corresponding to data receiver district of other equipment, and these data are put into to the data segments of information frame, form according to information frame sends to equipment, therefore, the communication means of wind power generating set of the present invention can provide the pathway for electrical signals exclusively enjoyed for each communication terminal, and making between each equipment can be fast, stable and transmit safely data.
The accompanying drawing explanation
Fig. 1 is the communicator of wind power generating set of the present invention and the circuit theory diagrams of communication means thereof.
Fig. 2 is the structural representation of the digital signal processor of the communicator of wind power generating set of the present invention and communication means thereof.
Fig. 3 is the process flow diagram of the communication means of wind power generating set of the present invention.
Fig. 4 is whether the SCIA_FLAG that judges of the communication means of wind power generating set of the present invention equals 1 process flow diagram.
Fig. 5 is whether the SCIB_FLAG that judges of the communication means of wind power generating set of the present invention equals 1 process flow diagram.
Fig. 6 is whether the CAN_FLAG that judges of the communication means of wind power generating set of the present invention equals 1 process flow diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Refer to shown in Fig. 1 and Fig. 2, the communicator of wind power generating set of the present invention comprises at least one digital signal processor, each digital signal processor all be connected with at least one can be with engine controller or/and master controller or/and inverter or/and supervisory system or/and the isolating converter that man-machine interface is connected between two digital signal processors, communicate to connect.Each digital signal processor all is connected with CAN port communications driving circuit, and described CAN port communications driving circuit is connected with the CAN mouth of digital signal processor.Each digital signal processor is provided with engine controller region of data storage, master controller region of data storage, inverter region of data storage, supervisory system region of data storage and man-machine interface region of data storage.Each region of data storage includes data receiver district and data transmission interval, and each data transmission interval has all been deposited pointer.The address of variable of all digital signal processors is all identical.Adopt the SPI communication connection between two digital signal processors.Described isolating converter is the RS-485 isolating converter.
In this specific embodiment, described digital signal processor is two, is digital signal processor I and digital signal processor II.Each digital signal processor all is connected with two isolating converters, is isolating converter I, isolating converter II, isolating converter III, isolating converter IV.Two isolating converters are connected with the SCIB mouth with the SCIA mouth of corresponding digital signal processor respectively, the SCIA mouth of isolating converter I linking number word signal processor I, the SCIB mouth of isolating converter II linking number word signal processor I, the SCIA mouth of isolating converter III linking number word signal processor II, the SCIB mouth of isolating converter IV linking number word signal processor II.Described CAN port communications drives and comprises that the CAN port communications drives I and CAN port communications to drive II, and described CAN port communications drives I to be connected with the digital signal processor I, and described CAN port communications drives II to be connected with the digital signal processor II.
Refer to shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the communication means of wind power generating set comprises the following steps:
The data receiver district of each storage area is for preserving the data that corresponding device sends to digital signal processor, some variable in the data receiver district of other equipment of pointed that the data transmission interval of each storage area is deposited, the variables collection of all pointed of the data transmission interval of each storage area is the data that digital signal processor sends to corresponding device.
If being respectively used to mark SCIA mouth, SCIB mouth, CAN mouth, variable SCIA_FLAG, SCIB_FLAG, CAN_FLAG whether communicate by letter successfully; SCIA_AD, SCIB_AD, CAN_AD are respectively used to the address that mark SCIA mouth, SCIB mouth, CAN mouth receive information frame, and these addresses have meaned that information frame belongs to the equipment in engine controller, master controller, inverter, supervisory system and man-machine interface.
(1), program starts;
(2), judge whether SCIA_FLAG equals 1; Concrete determining step is as follows:
(1), SCIA interrupts entrance;
(2), the address in reading out data being kept in SCIA_AD;
(3), receive data;
(4), whether judgement reception data length equals information frame data indicating length;
(5), receive data length and equal information frame data indicating length, judge whether CRC check is passed through; Receive data length and be not equal to information frame data indicating length, End of Interrupt;
(6), CRC check passes through, according to SCIA_AD by data storing the data receiver district to the corresponding stored district, SCIA_FLAG equals 1; CRC check is not passed through, and empties all reception data, waits for next information frame;
(7), End of Interrupt;
(3), SCIA_FLAG equals 1, the data that SCIA_AD corresponding stored district data transmission interval is pointed to send by the SCIA mouth; The data in data receiver district send to other digital signal processors by the SPI mouth, make the data of each internal memories of digital signal processors storage identical, and the SCIA_FLAG that resets, make SCIA_FLAG=0; ; SCIA_FLAG is not equal to 1, jumps to the SCIB mouth;
(4), judge whether SCIB_FLAG equals 1; Concrete determining step is as follows:
(1), SCIB interrupts entrance;
(2), the address in reading out data being kept in SCIB_AD;
(3), receive data;
(4), whether judgement reception data length equals information frame data indicating length;
(5), receive data length and equal information frame data indicating length, judge whether CRC check is passed through; Receive data length and be not equal to information frame data indicating length, End of Interrupt;
(6), CRC check passes through, according to SCIB_AD by data storing the data receiver district to the corresponding stored district, SCIB_FLAG equals 1; CRC check is not passed through, and empties all reception data, waits for next information frame;
(7), End of Interrupt;
(5), SCIB_FLAG equals 1, the data that SCIB_AD corresponding stored district data transmission interval is pointed to send by the SCIB mouth; The data in data receiver district send to other digital signal processors by the SPI mouth, make the data of each internal memories of digital signal processors storage identical, and the SCIB_FLAG that resets, make SCIB_FLAG=0; ; SCIB_FLAG is not equal to 1, jumps to the CAN mouth;
(6), judge whether CAN_FLAG equals 1; Concrete determining step is as follows:
(1), CAN interrupts entrance;
(2), the address in reading out data being kept in CAN_AD;
(3), receive data;
(4), whether judgement reception data length equals information frame data indicating length;
(5), receive data length and equal information frame data indicating length, judge whether CRC check is passed through; Receive data length and be not equal to information frame data indicating length, End of Interrupt;
(6), CRC check passes through, according to CAN_AD by data storing the data receiver district to the corresponding stored district, CAN_FLAG equals 1; CRC check is not passed through, and empties all reception data, waits for next information frame;
(7), End of Interrupt;
(7), CAN_FLAG equals 1, the data that CAN_AD corresponding stored district data transmission interval is pointed to send by the CAN mouth; The data in data receiver district send to other digital signal processors by the SPI mouth, make the data of each internal memories of digital signal processors storage identical, and the CAN_FLAG that resets, make CAN_FLAG=0, then returns to step (two); CAN_FLAG is not equal to 1, returns to step (two).
Claims (1)
1. the communication means of a wind power generating set comprises the following steps:
The data receiver district of each storage area is for preserving the data that corresponding device sends to digital signal processor, some variable in the data receiver district of other equipment of pointed that the data transmission interval of each storage area is deposited, the variables collection of all pointed of the data transmission interval of each storage area is the data that digital signal processor sends to corresponding device;
If being respectively used to mark SCIA mouth, SCIB mouth, CAN mouth, variable SCIA_FLAG, SCIB_FLAG, CAN_FLAG whether communicate by letter successfully; SCIA_AD, SCIB_AD, CAN_AD are respectively used to the address that mark SCIA mouth, SCIB mouth, CAN mouth receive information frame, and these addresses have meaned that information frame belongs to the equipment in engine controller, master controller, inverter, supervisory system and man-machine interface;
(1), program starts;
(2), judge whether SCIA_FLAG equals 1; Concrete determining step is as follows:
(1), SCIA interrupts entrance;
(2), the address in reading out data being kept in SCIA_AD;
(3), receive data;
(4), whether judgement reception data length equals information frame data indicating length;
(5), receive data length and equal information frame data indicating length, judge whether CRC check is passed through; Receive data length and be not equal to information frame data indicating length, End of Interrupt;
(6), CRC check passes through, according to SCIA_AD by data storing the data receiver district to the corresponding stored district, SCIA_FLAG equals 1; CRC check is not passed through, and empties all reception data, waits for next information frame;
(7), End of Interrupt;
(3), SCIA_FLAG equals 1, the data that SCIA_AD corresponding stored district data transmission interval is pointed to send by the SCIA mouth; The data in data receiver district send to other digital signal processors by the SPI mouth, make the data of each internal memories of digital signal processors storage identical, and the SCIA_FLAG that resets, make SCIA_FLAG=0; SCIA_FLAG is not equal to 1, jumps to the SCIB mouth;
(4), judge whether SCIB_FLAG equals 1; Concrete determining step is as follows:
(1), SCIB interrupts entrance;
(2), the address in reading out data being kept in SCIB_AD;
(3), receive data;
(4), whether judgement reception data length equals information frame data indicating length;
(5), receive data length and equal information frame data indicating length, judge whether CRC check is passed through; Receive data length and be not equal to information frame data indicating length, End of Interrupt;
(6), CRC check passes through, according to SCIB_AD by data storing the data receiver district to the corresponding stored district, SCIB_FLAG equals 1; CRC check is not passed through, and empties all reception data, waits for next information frame;
(7), End of Interrupt;
(5), SCIB_FLAG equals 1, the data that SCIB_AD corresponding stored district data transmission interval is pointed to send by the SCIB mouth; The data in data receiver district send to other digital signal processors by the SPI mouth, make the data of each internal memories of digital signal processors storage identical, and the SCIB_FLAG that resets, make SCIB_FLAG=0; SCIB_FLAG is not equal to 1, jumps to the CAN mouth;
(6), judge whether CAN_FLAG equals 1; Concrete determining step is as follows:
(1), CAN interrupts entrance;
(2), the address in reading out data being kept in CAN_AD;
(3), receive data;
(4), whether judgement reception data length equals information frame data indicating length;
(5), receive data length and equal information frame data indicating length, judge whether CRC check is passed through; Receive data length and be not equal to information frame data indicating length, End of Interrupt;
(6), CRC check passes through, according to CAN_AD by data storing the data receiver district to the corresponding stored district, CAN_FLAG equals 1; CRC check is not passed through, and empties all reception data, waits for next information frame;
(7), End of Interrupt;
(7), CAN_FLAG equals 1, the data that CAN_AD corresponding stored district data transmission interval is pointed to send by the CAN mouth; The data in data receiver district send to other digital signal processors by the SPI mouth, make the identical CAN_FLAG of resetting of data of each internal memories of digital signal processors storage, make CAN_FLAG=0; Then return to step (two); CAN_FLAG is not equal to 1, returns to step (two).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104494223A CN102566538B (en) | 2011-12-29 | 2011-12-29 | Communication method for wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104494223A CN102566538B (en) | 2011-12-29 | 2011-12-29 | Communication method for wind generating set |
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| CN102566538A CN102566538A (en) | 2012-07-11 |
| CN102566538B true CN102566538B (en) | 2013-12-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2679388Y (en) * | 2003-12-29 | 2005-02-16 | 中国科学院电工研究所 | Controller of wind-driven generator |
| CN201294481Y (en) * | 2008-10-24 | 2009-08-19 | 上海输配电股份有限公司 | Converter for dual-feedback wind generating set |
| US20100264739A1 (en) * | 2009-04-15 | 2010-10-21 | Monte Errington | Modular adaptive power matrix |
| CN201956699U (en) * | 2011-01-10 | 2011-08-31 | 黑龙江瑞好科技集团有限公司 | Current transformation device control system of doubly-fed wind generating set |
| CN202421861U (en) * | 2011-12-29 | 2012-09-05 | 欣达重工股份有限公司 | Communication device of wind turbine generator unit |
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