CN102591280B - Signal isolation converter - Google Patents
Signal isolation converter Download PDFInfo
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- CN102591280B CN102591280B CN201210027786.7A CN201210027786A CN102591280B CN 102591280 B CN102591280 B CN 102591280B CN 201210027786 A CN201210027786 A CN 201210027786A CN 102591280 B CN102591280 B CN 102591280B
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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 signal isolation converter, which is connected between a fan master control system and a wind speed and wind direction instrument, wherein the wind speed and wind direction instrument is used for collecting wind speed and wind direction signals flowing through a fan and transmitting the wind speed and wind direction signals to the signal isolation converter, and the fan master control system is used for analyzing effective wind speed and wind direction signals processed by the signal isolation converter and adjusting operation states of the fan according to the received wind speed and wind direction signals. The signal isolation converter comprises a main machine communication module, a controller, an auxiliary machine communication module, a multi-path switch, a power supply module, a wind speed and wind direction-I conversion module, a wind speed and wind direction-2DO conversion module and a wind speed and wind direction-CNT conversion module. The signal isolation converter can convert the wind speed and wind direction signals collected by the wind speed and wind direction instrument can be converted to various data forms, so that requirements of different fan master control systems for data forms can be met, and effective communication between the fan master control system and the wind speed and wind direction instrument can be well achieved.
Description
Technical field
The present invention relates to a kind of signal isolating converter, relate in particular to a kind of signal isolating converter being applied between wind power generating set wind speed and direction information collecting device and blower fan master control system.
Background technology
In wind generating technology, wind speed and direction information collecting device is as one of important and crucial wind power generating set parts, become more and more important, how to gather accurately and effectively wind speed and direction signal and realize wind speed and direction information collecting device and blower fan master control system between communication issue be one of subject matter of facing of most wind power technology enterprise.
The wind speed and direction information collecting device of existing partial domestic, as anemoclinograph, wind gage although wind speed and direction collecting device is being greatly improved aspect wind velocity signal and wind direction signals acquisition technique, but communicating by letter between wind speed and direction collecting device and blower fan master control system remains a very large problem, usually there will be following problem: (1) wind speed and direction collecting device adopts a kind of data mode transferring out wind speed and direction data, and blower fan master control system can only be accepted the wind speed and direction data of another kind of data mode, so often cause the obstacle between blower fan master control system and wind speed and direction collecting device, (2) it is different that the blower fan master control system of different blower fan master control manufacturers produce is accepted the form of wind speed and direction data, make blower fan master control system can only select specific wind speed and direction collecting device mutually to mate with blower fan master control system, thereby easily cause the difficulty of wind speed and direction collecting device type selecting.How to make communicating by letter between wind speed and direction collecting device and blower fan master control system meet several data communication form and become particularly important.
Summary of the invention
The object of the invention is the defect existing for above-mentioned background technology, a kind of signal isolating converter with several data output function is provided, this signal isolating converter can be realized communicating by letter between anemoclinograph and blower fan master control system effectively.
For achieving the above object, signal isolating converter provided by the invention is connected between blower fan master control system and anemoclinograph, anemoclinograph is crossed instant wind velocity signal and the wind direction signals of blower fan for acquisition stream, and will wind velocity signal and wind direction signals packing after send signal isolating converter of the present invention to the form of certain signal frame, blower fan master control system is for analyzing through signal isolating converter effective wind velocity signal after treatment and wind direction signals and adjusting the running status of blower fan according to the wind velocity signal of receiving and wind direction signals.Signal isolating converter of the present invention comprises a host communication module, a controller, a slave communication module, a multi-way switch, a supply module, one wind speed and direction-I modular converter, one wind speed and direction-2DO modular converter and one wind speed and direction-CNT modular converter.What described host communication module accepted for (one) that controller sends requires described anemoclinograph timing to the instruction of host communication module transmission wind velocity signal and wind direction signals and sends this instruction to described anemoclinograph, (2) wind velocity signal and the wind direction signals unpack, judgement, verification anemoclinograph sent into, and send the instruction that effective wind velocity signal and wind direction signals are sent according to described controller to described controller.Described controller requires anemoclinograph regularly to transmit the request to host communication module of wind velocity signal and wind direction signals for (one) main control system communication module, (2) accept host communication module wind velocity signal after treatment and wind direction signals, (3) controlled wind speed wind direction-I modular converter, wind speed and direction-2DO modular converter and wind speed and direction-CNT modular converter convert wind velocity signal and wind direction signals to three line current signals, DO signal and CNT signal, (4) receiving blower fan master control system by slave communication module requires signal isolating converter to transmit the request of data of RS485 signal fan master control system, (5) control the conducting of multi-way switch and close so that change rear three line current signals, DO signal and CNT signal are sent into blower fan master control system according to conduction status.Described slave communication module is for receiving and transmit the steering order of described blower fan master control system and described controller, and by RS485 signal to sending blower fan master control system to.Described multi-way switch, according to the steering order of controller, is exported three line current signals, DO signal, CNT signal selectively.Described supply module is for carrying out the supply of electric energy to host communication module, controller, multi-way switch and slave communication module.
In sum, signal isolating converter of the present invention is because converting the wind speed and direction signal of anemoclinograph collection to several data form, therefore can meet different blower fan master control systems to the data substantive requirements of form, realize well the efficient communication between blower fan master control system and anemoclinograph.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of signal isolating converter of the present invention.
Embodiment
By describing technology contents of the present invention, structural attitude in detail, being reached object and effect, below hereby exemplify embodiment and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, a kind of signal isolating converter 100 of the present invention comprises a host communication module 1, a controller 2, a slave communication module 3, a multi-way switch 4, a supply module 5, some lightning protection circuits 6, one wind speed and direction-I modular converter 71, one wind speed and direction-2DO modular converter 72, one wind speed and direction-CNT modular converter 73, a power monitoring module 8 and a storer 9.In this specific embodiment, described signal isolating converter 100 is connected between blower fan master control system 200 and anemoclinograph 300, in order to guarantee the validity of communication between blower fan master control system 200 and anemoclinograph 300 and normal.Described wind speed and direction-I modular converter 71 comprises a DA converter.
The host communication module 1 of signal isolating converter 100 of the present invention interconnects with supply module 5, anemoclinograph 300 and controller 2 respectively; Controller 2 interconnects with described host communication module 1, slave communication module 3, supply module 5, wind speed and direction-I modular converter 71, wind speed and direction-2DO modular converter 72, wind speed and direction-CNT modular converter 73, power monitoring module 8 and storer 9 respectively; Slave communication module 3 interconnects with described controller 2, supply module 5 and blower fan master control system 200 respectively; Multi-way switch 4 interconnects with supply module 5, wind speed and direction-I modular converter 71, wind speed and direction-2DO modular converter 72, wind speed and direction-CNT modular converter 73 and blower fan master control system 200 respectively.
Described anemoclinograph 300 is crossed instant wind velocity signal and the wind direction signals of blower fan for acquisition stream, and will after wind velocity signal and wind direction signals packing, send the host communication module 1 of signal isolating converter 100 of the present invention to the form of signal frame.Described blower fan master control system 200 is for analyzing the running status through signal isolating converter 100 of the present invention effective wind velocity signal after treatment and the wind direction signals wind velocity signal that also basis is received and wind direction signals adjustment blower fan.
Described host communication module 1 is accepted for (one) described anemoclinograph 300 timings that require that controller 2 sends and is transmitted the instruction of wind velocity signal and wind direction signals and send this instruction to described anemoclinograph 300 to host communication module 1; (2) wind velocity signal and the wind direction signals unpack, judgement, verification anemoclinograph 300 sent into, and send the instruction that effective wind velocity signal and wind direction signals are sent according to described controller 2 to described controller 2.Between described host communication module 1 and described anemoclinograph 300, realize mutual communicating by letter by VDT agreement.
Described controller 2 requires anemoclinograph 300 regularly to transmit the request to host communication module 1 of wind velocity signal and wind direction signals for (one) main control system communication module 1; (2) accept host communication module 1 wind velocity signal after treatment and wind direction signals; (3) controlled wind speed wind direction-I modular converter 71, wind speed and direction-2DO modular converter 72 and wind speed and direction-CNT modular converter 73 convert wind velocity signal and wind direction signals to three line current signals, DO signal and CNT signal; (4) receiving blower fan master control system 200 by slave communication module 3 requires signal isolating converter 100 of the present invention to transmit the request of data of RS485 signal fan master control system 200; (5) conducting and the disconnection of controlling multi-way switch 4 are sent into blower fan master control system 200 so that change rear three line current signals, DO signal and CNT signal according to conduction status.
In this specific embodiment, described controller 2 controlled wind speed wind direction-I modular converters 71 also convert wind velocity signal and wind direction signals to by corresponding SPI program three line current signals of two-way band wind velocity signal and wind direction signals.Described controller 2 controlled wind speed wind direction-2DO modular converters 72 convert wind direction signals to by 2DO written-out program the DO signal of two-way band wind direction signals.Described controller 2 controlled wind speed wind direction-CNT modular converters 73 convert wind velocity signal to by CNT written-out program the CNT signal of one road band wind velocity signal.
Described slave communication module 3 is for receiving and transmit the steering order of described blower fan master control system 200 and described controller 2, and sends blower fan master control system 200 to after converting wind velocity signal and wind direction signals to blower fan master control system 200 acceptable RS485 signal according to the data demand of blower fan master control system 200.Concrete, blower fan master control system 200 sends blower fan master control system 200 by slave communication module 3 and requires controller 2 to send the wind velocity signal of collection and wind direction signals 200 instructions of to blower fan master control system; The controller 2 of signal isolating converter 100 of the present invention sends corresponding RS485 signal to blower fan master control system 200 according to the data demand of blower fan master control system 200 receiving after corresponding order.Between the slave communication module 3 of signal isolating converter 100 of the present invention and blower fan master control system 200, adopt MODBUS agreement to communicate.
Storer 9 described in this specific embodiment is an EEPROM (Electrically Erasable Programmable Read Only Memo).This storer 9 is for storing customer parameter information, communication protocol and program.
Described multi-way switch 4, according to the steering order of controller 2, is exported three line current signals, DO signal, CNT signal selectively.
Described supply module 5 is for carrying out the supply of electric energy to host communication module 1, controller 2, multi-way switch 4 and slave communication module 3.Described supply module 5 can directly be supplied the direct current of 24V to multi-way switch 4; Simultaneously supply module 5 by the direct current of 24V can host communication module 1 after conversion, controller 2, multi-way switch 4 and slave communication module 3 supply the direct current of 5V.
Described lightning protection circuit 6 for the protection of anemoclinograph 300 be struck by lightning or when switching overvoltage signal isolating converter 100 inner each devices and anemoclinograph 300 avoid infringement.A wherein lightning protection circuit 6 of signal isolating converter 100 of the present invention is installed between described host communication module 1 and described anemoclinograph 200, another lightning protection circuit 6 is installed between described controller 2 and described multi-way switch 4, a lightning protection circuit 6 is installed between described supply module 5 and described multi-way switch 4 again, last lightning protection circuit 6 is installed between described slave communication module 3 and blower fan master control system 200.
The detailed operation principle of a kind of signal isolating converter 100 of the present invention is as follows: described anemoclinograph 200 gathers and store corresponding wind velocity signal and wind direction signals, described controller 2 is controlled 1 timing of described host communication module and is sent and require this anemoclinograph 300 to transmit wind velocity signal and the wind direction signals steering order to described host communication module 1 to described anemoclinograph 300, anemoclinograph 300 is receiving after relevant steering order and will after the packing of wind speed and direction signal, send described host communication module 1 to the form of certain signal frame, described host communication module 1 unpacks, judgement, verification anemoclinograph 300 are sent into wind velocity signal and wind direction signals, and send the instruction that effective wind velocity signal and wind direction signals are sent according to described controller 2 to described controller 2, controller 2 is controlled slave communication module 3, wind speed and direction-I modular converter 71, wind speed and direction-2DO modular converter 72, wind speed and direction-CNT modular converter 73 converts wind velocity signal and wind direction signals to meet blower fan master control system 200 demands data mode, controller 2 is selected to send wind velocity signal and wind direction signals to blower fan master control system 200 by a path in described slave communication module 3 or 4 two paths of multi-way switch according to the 200 data demand judgements of blower fan master control system, concrete, when blower fan master control system 200 need be the data mode of three line current signals time, controller 2 controlled wind speed wind direction-I modular converters 71 also convert wind velocity signal and wind direction signals to by corresponding SPI program three line current signals of two-way band wind velocity signal and wind direction signals, controller 2 according to the conducting of the respective paths of the semaphore request control multi-way switch 4 of blower fan master control system 200 to send three line current signals to blower fan master control system 200, when blower fan master control system 200 need be the data mode of DO signal and CNT signal time, controller 2 controlled wind speed wind direction-2DO modular converters 72 also convert wind direction signals to two-way 2DO signal by corresponding 2DO written-out program, with Time Controller 2 controlled wind speed wind direction-CNT modular converters 73 and convert wind velocity signal to CNT signal by corresponding CNT written-out program, controller 2 according to the conducting of the respective paths of the semaphore request control multi-way switch 4 of blower fan master control system 200 to send CNT signal to blower fan master control system 200, when blower fan master control system 200 need be the data mode of RS485 signal time, now, controller 2 converts band wind velocity signal and wind direction signals to RS485 signal by controlling slave communication module 3, sends the RS485 signal that meets blower fan master control system 200 to blower fan master control system 200 with Time Controller 2, finally realize the efficient communication between anemoclinograph 300 and blower fan master control system 300, reach the data transmission of wind velocity signal and wind direction signals with this.
In sum, signal isolating converter 100 of the present invention converts several data form to because of the wind speed and direction signal that anemoclinograph 200 can be gathered, therefore can meet different blower fan master control systems 200 to the data substantive requirements of form, realize well the efficient communication between blower fan master control system 200 and anemoclinograph 300.
Above-described technical scheme is only the preferred embodiment of signal isolating converter 100 of the present invention, within any equivalent transformation of doing on signal isolating converter of the present invention 100 bases or replacement are included in the scope of claim of this patent.
Claims (11)
1. a signal isolating converter, this signal isolating converter is connected between blower fan master control system and anemoclinograph, anemoclinograph is crossed real-time wind velocity signal and the wind direction signals of blower fan for acquisition stream, and will after wind velocity signal and wind direction signals packing, send this signal isolating converter to the form of signal frame, blower fan master control system, for analyzing the running status through signal isolating converter effective wind velocity signal after treatment and the wind direction signals wind velocity signal that also basis is received and wind direction signals adjustment blower fan, is characterized in that:
This signal isolating converter comprises a host communication module, a controller, a slave communication module, a multi-way switch, a supply module, one wind speed and direction-I modular converter, one wind speed and direction-2DO modular converter, one wind speed and direction-CNT modular converter;
What described host communication module accepted for (one) that controller sends requires described anemoclinograph timing to the instruction of host communication module transmission wind velocity signal and wind direction signals and sends this instruction to described anemoclinograph, (2) wind velocity signal and the wind direction signals unpack, judgement, verification anemoclinograph sent into, and send the instruction that effective wind velocity signal and wind direction signals are sent according to described controller to described controller;
Described controller requires anemoclinograph regularly to transmit the request to host communication module of wind velocity signal and wind direction signals for (one) main control system communication module, (2) accept host communication module wind velocity signal after treatment and wind direction signals, (3) controlled wind speed wind direction-I modular converter, wind speed and direction-2DO modular converter, wind speed and direction-CNT modular converter converts wind velocity signal and wind direction signals to three line current signals, DO signal and CNT signal, (4) receiving blower fan master control system by slave communication module requires signal isolating converter to transmit the request of data of RS485 signal fan master control system, (5) control the conducting of multi-way switch and close so that change rear three line current signals, DO signal and CNT signal are sent into blower fan master control system according to conduction status,
Described slave communication module is used for receiving and transmit the steering order of described blower fan master control system and described controller, and sends RS485 signal to blower fan master control system;
Described multi-way switch, according to the steering order of controller, is exported three line current signals, DO signal and CNT signal selectively;
Described supply module is for carrying out the supply of electric energy to host communication module, controller, multi-way switch and slave communication module.
2. signal isolating converter according to claim 1, is characterized in that: described host communication module interconnects with supply module, anemoclinograph and controller respectively; Controller interconnects with described host communication module, slave communication module, supply module, wind speed and direction-I modular converter, wind speed and direction-2DO modular converter, wind speed and direction-CNT modular converter, power monitoring module and storer respectively; Slave communication module interconnects with described controller, supply module and blower fan master control system respectively; Multi-way switch interconnects with supply module, wind speed and direction-I modular converter, wind speed and direction-2DO modular converter, wind speed and direction-CNT modular converter and blower fan master control system respectively.
3. signal isolating converter according to claim 1, is characterized in that: between described host communication module and described anemoclinograph, realize mutual communicating by letter by VDT agreement.
4. signal isolating converter according to claim 1, is characterized in that: between slave communication module and blower fan master control system, adopt MODBUS agreement to communicate.
5. signal isolating converter according to claim 1, is characterized in that: supply module can directly be supplied the direct current of 24V to multi-way switch; Supply module is supplied the direct current of 24V the direct current of 5V through the backward host communication module of conversion, controller, multi-way switch and slave communication module simultaneously.
6. signal isolating converter according to claim 1; it is characterized in that: described signal isolating converter further comprises four lightning protection circuits, this lightning protection circuit for the protection of anemoclinograph be struck by lightning or when switching overvoltage the inner each device of signal isolating converter and anemoclinograph avoid infringement.
7. signal isolating converter according to claim 6, is characterized in that: wherein a lightning protection circuit is installed between described host communication module and described anemoclinograph, another lightning protection circuit is installed between described controller and described multi-way switch, a lightning protection circuit is installed between described supply module and described multi-way switch again, last lightning protection circuit is installed between described slave communication module and blower fan master control system.
8. signal isolating converter according to claim 1, is characterized in that: described signal isolating converter further comprises a power monitoring module and a storer.
9. signal isolating converter according to claim 8, is characterized in that: described storer is an EEPROM (Electrically Erasable Programmable Read Only Memo), and storer is used for storing customer parameter information, communication protocol and program.
10. signal isolating converter according to claim 1, is characterized in that: described controller controlled wind speed wind direction-I modular converter converts wind velocity signal and wind direction signals to three line current signals of two-way band wind velocity signal and wind direction signals by corresponding algorithm; Described controller controlled wind speed wind direction-2DO modular converter converts wind direction signals to by corresponding algorithm the DO signal of two-way band wind direction signals; Described controller controlled wind speed wind direction-CNT modular converter converts wind velocity signal to by corresponding algorithm the CNT signal of one road band wind velocity signal.
11. signal isolating converters according to claim 1, is characterized in that: described wind speed and direction-I modular converter comprises a DA converter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210027786.7A CN102591280B (en) | 2012-02-09 | 2012-02-09 | Signal isolation converter |
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| CN201210027786.7A CN102591280B (en) | 2012-02-09 | 2012-02-09 | Signal isolation converter |
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| CN102591280A CN102591280A (en) | 2012-07-18 |
| CN102591280B true CN102591280B (en) | 2014-05-14 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992464A (en) * | 2005-12-30 | 2007-07-04 | 中国科学院电工研究所 | Control system of wind turbines |
| WO2010131069A1 (en) * | 2009-05-11 | 2010-11-18 | Clipper Windpower, Inc. | Fiber optic distributed input/output system for wind turbine |
| CN201844841U (en) * | 2010-11-03 | 2011-05-25 | 赵京磊 | Fully-isolated frequency signal acquisition and conversion device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2387836T3 (en) * | 2007-10-23 | 2012-10-02 | Repower Systems Se | Device and procedure for the operation of a wind power plant or a wind farm |
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- 2012-02-09 CN CN201210027786.7A patent/CN102591280B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992464A (en) * | 2005-12-30 | 2007-07-04 | 中国科学院电工研究所 | Control system of wind turbines |
| WO2010131069A1 (en) * | 2009-05-11 | 2010-11-18 | Clipper Windpower, Inc. | Fiber optic distributed input/output system for wind turbine |
| CN201844841U (en) * | 2010-11-03 | 2011-05-25 | 赵京磊 | Fully-isolated frequency signal acquisition and conversion device |
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