CN102828904A - Wind-power-generation variable-pitch control system with CAN (control area network) communication system - Google Patents
Wind-power-generation variable-pitch control system with CAN (control area network) communication system Download PDFInfo
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- CN102828904A CN102828904A CN2011101573399A CN201110157339A CN102828904A CN 102828904 A CN102828904 A CN 102828904A CN 2011101573399 A CN2011101573399 A CN 2011101573399A CN 201110157339 A CN201110157339 A CN 201110157339A CN 102828904 A CN102828904 A CN 102828904A
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- charger
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a wind-power-generation variable-pitch control system with a CAN (control area network) communication system. The wind-power-generation variable-pitch control system comprises a charger with a CAN communication system, a battery pack connected with the charger by a cable, a variable-pitch PLC (programmable logic controller), and a master control PLC and a display window both of which are connected by the Ethernet and used for transmitting signals; CAN ports are respectively arranged on the charger and the variable-pitch PLC; the CAN ports are connected by a CANbus. The CAN communication function is added in the charger, and the CAN communication system can announce the information of voltage, current and the like collected in the charger to the outside by the CAN bus communication, and in this way, the running state of the charger and the charging state of the battery can be directly known by the exterior by means of a principal computer.
Description
Technical field
The present invention relates to a kind of wind electricity change paddle control system of the CAN of having communication system, be applied to the wind power technology field.
Background technique
According to recent statistics, China's newly-increased wind-power electricity generation equipment capacity was 1,892 ten thousand kilowatts in 2010, and total installation of generating capacity reaches 4,473 ten thousand kilowatts.Yet,, but still do not claim wind-powered electricity generation power though China has quantitatively become world wind-power electricity generation big country.
Because China's wind-power electricity generation industry development in recent years is swift and violent, the existing sign that exposes of concentrating of the product quality problem that long-term accumulation forms.The sustainable development of will keeping fit of China's wind-power electricity generation industry realizes the transformation to wind-powered electricity generation power from wind-powered electricity generation big country, must pay close attention to quality and technology more.In this case, the real-time detection of operation and fault diagnosis become particularly important.
Variable blade control system is constituent elements important in the wind-power generating system, and is as shown in Figure 1, by power supply charger charged; Charger is to the power supply of battery and driver, and simultaneously, driver receives when becoming the signal that oar PLC sends; The control motor movement, the driven by motor blade rotates.And guarantee that pitch-controlled system can be reliable back-up power in the prerequisite of stable operation under the bad working environments.And the electric energy of back-up power is provided by charger just.Charger is generally by switching power circuit, and circuit voltage detects loop, compositions such as fault output circuit.When charger breaks down, can export the state of corresponding alarm actuating contact to point out charger to be in fault, prompting is overhauled, and guarantees the safety of blower fan.Yet, do like this and also exist following defective:
1, charger, the state of battery is not clear:
Because the working state of charger is by inside chip control, the electric current of collection, magnitude of voltage are all handled in charger inside, often can only see whether charger is normal, and be not sure of real-time charged state, battery status.
2, the failure cause of charger is not clear:
Charger can externally export fault contact, but the fault that charger takes place is diversified, depends merely on a trouble signal, can not accurately reflect the fault state of charger when breaking down.
Summary of the invention
The present invention has proposed a kind of wind electricity change paddle control system of the CAN of having communication system in order to solve this technical problem.
The object of the invention will be achieved through following technological scheme:
The wind electricity change paddle control system that has the CAN communication system; Comprise one have a CAN communication system the battery pack that is connected with charger through cable of charger; One becomes oar PLC; And the main control PLC and the display window that pass through Ethernet connection and transmission signal, be respectively arranged with the CAN port on said charger and the said change oar PLC, be provided with the CAN bus between the CAN port and connect.
Further; Said charger comprises switching power circuit; The electric current and voltage adjustment circuit parallelly connected with said switching power circuit; The photoelectric isolating circuit of connecting with said electric current and voltage adjustment circuit, with the parallelly connected monitoring, alarming circuit of said electric current and voltage adjustment circuit, and the CAN communicating circuit of connecting with said detection alarm circuit.
Further, the power supply topologies of said charger adopts inverse-excitation type.
Further, the CAN communicating circuit is the high-speed CAN transceiver module that CTM1050 band is isolated, and said CAN transceiver module is provided with CAN isolates and CAN sending and receiving device.
Beneficial effect of the present invention is mainly reflected in: in charger, added the CAN communication function; And the CAN communication system can be with the inner voltage of gathering of charger; Information such as electric current are through real-time the carrying out of CAN bus communication " externally issue "; Make the external world can be directly acquainted with the running state of charger, the charged state of battery through upper-position unit.
Description of drawings
Fig. 1 is the pitch-controlled system schematic representation of existing technology.
Fig. 2 is a principle schematic of the present invention.
Fig. 3 is charger circuit figure of the present invention.
Embodiment
As shown in Figure 2; The present invention has disclosed a kind of wind electricity change paddle control system of the CAN of having communication system; Comprise the battery pack that the charger, of a flyback power supply topological structure is connected with charger through cable, one becomes oar PLC, and the main control PLC through Ethernet connection and transmission signal and be used to show the display window of charger and battery status; Be respectively arranged with the CAN port on said charger and the said change oar PLC, be provided with the CAN bus between the CAN port and connect.
As shown in Figure 3; Said charger has the CAN communication system, particularly, comprises the main circuit that switching power circuit 16 constitutes; Reach with said switching power circuit 16 parallelly connected electric current and voltages and adjust circuit 12; The photoelectric isolating circuit 11 of connect with said electric current and voltage adjustment circuit 12 is adjusted the parallelly connected monitoring, alarming circuit 13 of circuit 11 with said electric current and voltage, and the communicating circuit 14 of connecting with said detection alarm circuit 13.Whether the process that monitoring, alarming circuit 13 is kept watch on charging has unusually, as situation such as overcurrent, overvoltage, fault, output alarm contact take place.The high-speed CAN transceiver module that communicating circuit 14 adopts the CTM1050 band to isolate, this inside modules is integrated, and all essential CAN isolate and CAN sending and receiving devices, and these all are integrated on the little module, form the CAN communication system.Module functions is that the logic level transition with the CAN controller is the differential level of CAN bus and the isolation features with DC 2500V.Through the alarm actuating contact of monitoring, alarming circuit 13 outputs, after receiving, communicating circuit 14 can show at display window.
Main circuit adopts special-purpose pwm chip, and additional detection circuit, communicating circuit realize detecting communication function.Like this, guaranteed that charger under extremely harsh elecromagnetic environment, also can charge normal.
For realizing the simplification of circuit, increase the stability of charger.CPU has adopted the bus-structured PIC18F single-chip microcomputer PIC18F2580 of Harvard, and 10 functions such as AD commentaries on classics of single-chip microcomputer inside are to voltage, and electric current is sampled, conversion.The inner integrated CAN controller of this single-chip microcomputer has avoided adding the trouble of CAN controller, has simplified circuit, has improved the reliability of system.
The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technological schemes of forming all drop within protection scope of the present invention.
Claims (4)
1. the wind electricity change paddle control system that has the CAN communication system; It is characterized in that: comprise one have a CAN communication system the battery pack that is connected with charger through cable of charger; One becomes oar PLC; And the main control PLC and the display window that pass through Ethernet connection and transmission signal, be respectively arranged with the CAN port on said charger and the said change oar PLC, be provided with the CAN bus between the CAN port and connect.
2. the wind electricity change paddle control system that has the CAN communication system as claimed in claim 1; It is characterized in that: said charger comprises switching power circuit; The electric current and voltage adjustment circuit parallelly connected with said switching power circuit; The photoelectric isolating circuit of connecting with said electric current and voltage adjustment circuit, with the parallelly connected monitoring, alarming circuit of said electric current and voltage adjustment circuit, and the CAN communicating circuit of connecting with said detection alarm circuit.
3. the wind electricity change paddle control system that has the CAN communication system as claimed in claim 2 is characterized in that: the power supply topologies of said charger adopts inverse-excitation type.
4. the wind electricity change paddle control system that has the CAN communication system as claimed in claim 2; It is characterized in that: the CAN communicating circuit is the high-speed CAN transceiver module that CTM1050 band is isolated, and said CAN transceiver module is provided with CAN isolates and CAN sending and receiving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101573399A CN102828904A (en) | 2011-06-13 | 2011-06-13 | Wind-power-generation variable-pitch control system with CAN (control area network) communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101573399A CN102828904A (en) | 2011-06-13 | 2011-06-13 | Wind-power-generation variable-pitch control system with CAN (control area network) communication system |
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| Publication Number | Publication Date |
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| CN102828904A true CN102828904A (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101573399A Pending CN102828904A (en) | 2011-06-13 | 2011-06-13 | Wind-power-generation variable-pitch control system with CAN (control area network) communication system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655065A (en) * | 2009-06-18 | 2010-02-24 | 苏州能健电气有限公司 | Control system for variable pitch of wind-driven generator |
| CN101964539A (en) * | 2010-08-14 | 2011-02-02 | 东方电气集团东方汽轮机有限公司 | Relay protection device of variable pitch blade system of wind driven generator |
| CN102064578A (en) * | 2010-12-20 | 2011-05-18 | 中国电力科学研究院 | Battery charging and replacing station for electric vehicles |
| CN202132175U (en) * | 2011-06-13 | 2012-02-01 | 苏州能健电气有限公司 | Wind power propeller change controlling system with controller area network (CAN) communication system |
-
2011
- 2011-06-13 CN CN2011101573399A patent/CN102828904A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655065A (en) * | 2009-06-18 | 2010-02-24 | 苏州能健电气有限公司 | Control system for variable pitch of wind-driven generator |
| CN101964539A (en) * | 2010-08-14 | 2011-02-02 | 东方电气集团东方汽轮机有限公司 | Relay protection device of variable pitch blade system of wind driven generator |
| CN102064578A (en) * | 2010-12-20 | 2011-05-18 | 中国电力科学研究院 | Battery charging and replacing station for electric vehicles |
| CN202132175U (en) * | 2011-06-13 | 2012-02-01 | 苏州能健电气有限公司 | Wind power propeller change controlling system with controller area network (CAN) communication system |
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Application publication date: 20121219 |