CN102644547B - Control method of variable-pitch system - Google Patents
Control method of variable-pitch system Download PDFInfo
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- CN102644547B CN102644547B CN201210129352.8A CN201210129352A CN102644547B CN 102644547 B CN102644547 B CN 102644547B CN 201210129352 A CN201210129352 A CN 201210129352A CN 102644547 B CN102644547 B CN 102644547B
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- pitch
- controlled system
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- temperature
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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
Abstract
The invention discloses a control device of a variable-pitch system, which comprises a shell. A power interface is arranged on the shell, and a control unit is disposed in the shell and electrically connected with the power interface. Shafts of the variable-pitch system can be used as units, working conditions including box temperature and humidity in the shafts are controlled by the control unit in a unified manner, the quantity of control parts is reduced, cost is lowered, unnecessary waiting delay of the variable-pitch system is avoided, and power generation efficiency of a wind driven generator is improved. In addition, the invention further discloses a control method for controlling working conditions of the variable-pitch system by the control device, and the control method is simple and clear in control logic and not easy to cause logical errors, and is stable and reliable.
Description
Technical field
The controlling method that the present invention relates to the working condition control device of the pitch-controlled system using on a kind of wind-driven generator and use above-mentioned control gear to control the operating mode of pitch-controlled system.
Background technique
Electric power is indispensable form of energy in daily production and life.Traditional thermal power generation not only will consume a large amount of fossil resources, and can discharge a large amount of greenhouse gases; Although nuclear energy power generation is emission greenhouse gas not, danger very, once there is accident, will cause irreversible destruction to environment, so various countries are in recent years all at the clean energy resource of greatly developing taking wind-power electricity generation as representative.
Pitch-controlled system is the vitals in complete blower, its effect is that Windward angle by adjusting fan blade is to change the rotating speed of blade, can optimize at ordinary times the generating efficiency of complete blower, if blower fan generation part fault or ambient wind velocity are too fast, it can utilize again stall principle make fan blade arrive feather position and stop operating, thereby avoid complete blower stall to collapse, therefore the reliable and stable operation of pitch-controlled system is the precondition and guarantee of the reliable and stable operation of whole wind-driven generator.
Ensure that pitch-controlled system normally works, just need to there be suitable operating temperature, damp condition, but wind-driven generator is installed on uninhabited ground more, barren mountains and unruly rivers, working environment very severe, and within pitch-controlled system is arranged on the top layer wheel hub of wind-driven generator, operating conditions is well imagined, therefore in order to ensure life-span and the stable operation of pitch-controlled system internal electronic device, just need to be in each casing of pitch-controlled system mounting heater, the Working condition regulators such as draught fan.In existing pitch-controlled system, the Working condition regulator in each casing is all to control respectively, works alone, and this not only makes the various control meanss of pitch-controlled system inside various, has improved cost; And make control logic complexity, and easily produce unnecessary work and wait for time delay, affect the generating efficiency of wind-driven generator.
Summary of the invention
Technical problem to be solved by this invention, just be to provide a kind of axle taking pitch-controlled system as unit, to the spin manifold temperature in each axle, the operating modes such as humidity are unified the control gear of controlling, and use this control gear to the spin manifold temperature in each axle of pitch-controlled system, the controlling method that the operating modes such as humidity are controlled.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme:
A control gear for pitch-controlled system, this control gear comprises housing, has power interface on housing, has control unit in housing, this control unit is electrically connected with power interface; And control unit is also electrically connected with the temperature transducer, heater, humidity transducer, the draught fan that are arranged in axle control case of pitch-controlled system; Temperature transducer, heater, draught fan in the cell box corresponding with above-mentioned axle control case with being arranged on pitch-controlled system are electrically connected; Thermistor on the motor corresponding with above-mentioned cell box with being arranged on pitch-controlled system is electrically connected; Be connected to the contactor corresponding with the power switch relay of pitch-controlled system by switch in addition.
Further, also include communication interface on housing, this communication interface can be USB interface, CAN interface, RS232 interface or RS485 interface, and above-mentioned communication interface is electrically connected with control unit.
Further, also include tutorial light on housing, described tutorial light is electrically connected with control unit.
A controlling method for pitch-controlled system, is used above-mentioned control gear, comprises the steps:
(1) control unit detects the temperature in the each casing of pitch-controlled system by each temperature transducer, the heater starting in casing during lower than setting value II when temperature in casing heats, when temperature in casing is higher than setting value I continuous heating certain hour, or when in casing, temperature is higher than setting value II, control unit records the starting condition that temperature meets pitch-controlled system;
(2) control unit detects the humidity in pitch-controlled system axle control case by humidity transducer, the heater starting in the time that the humidity in axle control case is greater than setting value in axle control case carries out heating and dehumidification, when humidity in axle control case is lower than setting value or temperature during higher than setting value V, control unit records the starting condition that humidity meets pitch-controlled system;
(3) in the time that temperature and humidity all meets the starting condition of pitch-controlled system, the switch closure that control unit control is attached thereto, when the switch being connected with all control units is all after closure, contactor obtains the power switch relay of electric adhesive pitch-controlled system, pitch-controlled system is obtained electric.
Further, after pitch-controlled system starts, control unit detects the temperature in the each casing of pitch-controlled system by each temperature transducer, and the heater starting in casing during lower than setting value III when temperature in casing heats, when temperature in casing stops heating after high 5 DEG C than setting value III; The draught fan starting in casing after temperature in casing is higher than setting value IV dispels the heat, when temperature in casing stops heat radiation after low 5 DEG C than setting value IV; When temperature in casing, detects after timing certain hour during lower than setting value IV higher than setting value III again.
Further, after pitch-controlled system starts, control unit detects the humidity in pitch-controlled system axle control case by humidity transducer, the heater starting in the time that the humidity in axle control case is more than or equal to setting value in axle control case carries out heating and dehumidification, when the humidity in axle control case does not need heating and dehumidification lower than the temperature in setting value or axle control case during higher than setting value V, after timing certain hour, detect again.
Further, after pitch-controlled system starts, control unit detects motor temperature by thermistor, when motor temperature is carried feathering signal to pitch-controlled system during higher than setting value.
Further, described setting value I is 5 DEG C, and setting value II is 10 DEG C, and setting value III is 15 DEG C, and setting value IV is 30 DEG C, and setting value V is 50 DEG C, and humidity set point is 90%.
Further, the certain hour in described step (1) is 60 minutes.
Further, above-mentioned certain hour is 10 minutes.
The invention has the beneficial effects as follows:
By control gear disclosed in this invention, can be taking the axle of pitch-controlled system as unit, by control unit, the spin manifold temperature in each axle, humidity operating mode are unified to control, both reduced the quantity of control means, reduce cost, avoid again unnecessary pitch-controlled system to start and waited for time delay, improved the generating efficiency of wind-driven generator.
Increase communication interface, can be for different working environments, to the renewal of upgrading of the parameter of control unit; Communication interface can be USB interface, CAN interface, RS232 interface or RS485 interface, has strengthened the compatibility of control gear disclosed in this invention.
By controlling method disclosed in this invention, utilize above-mentioned control gear, realize axle taking pitch-controlled system as unit, the unified of the operating mode such as spin manifold temperature, humidity in each axle controlled, control logic is simply clear, reliable and stable, is not easy occurrence logic mistake.
The temperature time delay of 5 DEG C is set with respect to desired temperature, avoids the frequent operation of Working condition regulator, extended its life-span.
In humidity control logic, increase a desired temperature as auxiliary parameter, that has avoided that pitch-controlled system causes because heating and dehumidification is invalid under hot environment cannot starting problem.
Motor temperature is detected, avoided motor to damage because operating temperature is too high.
Brief description of the drawings
Fig. 1 is the circuit connection diagram of control gear and the each casing of pitch-controlled system of the embodiment of the present invention 3;
Fig. 2 is the flow chart of the controlling method of the embodiment of the present invention 8;
Fig. 3 is the temperature control method flow chart after the pitch-controlled system of the embodiment of the present invention 8 starts;
Fig. 4 is the humidity control method flow chart after the pitch-controlled system of the embodiment of the present invention 8 starts.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Because pitch-controlled system is the parts that are associated with the blade of wind-driven generator, therefore wind-driven generator has several blades, just there are several axles corresponding with each blade respectively in pitch-controlled system inside, wherein the formation of each axle is all identical, comprise the motor that can drive fan blade to rotate, control the axle control case of motor operation and in the time that electric network source is lost, be the cell box that motor is powered.
Embodiment 1, the present embodiment discloses a kind of control gear of pitch-controlled system, this control gear comprises housing 1, on housing, there is power interface 2, the input voltage of this power interface is 230V, in housing, have control unit 3, this control unit is the single-chip microcomputer with signal reception and operational capability, and this control unit is electrically connected with power interface; And control unit is also electrically connected with the temperature transducer, heater, humidity transducer, the draught fan that are arranged in axle control case of pitch-controlled system; Temperature transducer, heater, draught fan in the cell box corresponding with above-mentioned axle control case with being arranged on pitch-controlled system are electrically connected; Thermistor on the motor corresponding with above-mentioned cell box with being arranged on pitch-controlled system is electrically connected; That is to say, pitch-controlled system has several axles, just has the disclosed control gear of several the present embodiment to answer in contrast, and control unit is also connected to the contactor corresponding with the power switch relay of pitch-controlled system by switch 4 in addition.In the time that the temperature and humidity of the some axles of pitch-controlled system meets the starting condition of pitch-controlled system, the switch closure that control unit control is attached thereto, in the time that the temperature and humidity of all axles of pitch-controlled system all meets the starting condition of pitch-controlled system, the switch being connected with all control units all can be closed, at this moment contactor obtains the power switch relay of electric adhesive pitch-controlled system, pitch-controlled system is obtained electric.
Embodiment 2, the present embodiment is on embodiment 1 basis, on the housing of control gear, also include communication interface 5, this communication interface can be USB interface, CAN interface, RS232 interface or RS485 interface, and above-mentioned communication interface is electrically connected with control unit, utilize this communication interface, can be for different working environments, the renewal of upgrading of the program to control unit inside and parameter.
Embodiment 3, and the present embodiment, on embodiment 2 basis, also includes LED light 6 on the housing of control gear, and described tutorial light is electrically connected with control unit, by the light on and off of tutorial light, just can show intuitively the operating mode in the each casing of pitch-controlled system.
Embodiment 4, and the present embodiment discloses a kind of controlling method of pitch-controlled system, use the control gear in above-described embodiment 3, comprise the steps:
(1) S11 control unit detects the temperature in the each casing of pitch-controlled system by each temperature transducer, the heater starting in casing during lower than setting value II when temperature in casing heats, when temperature in casing is higher than setting value I continuous heating certain hour, or when in casing, temperature is higher than setting value II, control unit records the starting condition that temperature meets pitch-controlled system;
(2) S12 control unit detects the humidity in pitch-controlled system axle control case by humidity transducer, the heater starting in the time that the humidity in axle control case is greater than setting value in axle control case carries out heating and dehumidification, when humidity in axle control case is lower than setting value or temperature during higher than setting value V, control unit records the starting condition that humidity meets pitch-controlled system;
(3) S13 is in the time that temperature and humidity all meets the starting condition of pitch-controlled system, the switch closure that control unit control is attached thereto, when the switch being connected with all control units is all after closure, contactor obtains the power switch relay of electric adhesive pitch-controlled system, pitch-controlled system is obtained electric.
By the disclosed controlling method of the present embodiment, utilize the control gear in above-described embodiment 3, realize axle taking pitch-controlled system as unit, the unified of the operating mode such as spin manifold temperature, humidity in each axle controlled, control logic is simply clear, reliable and stable, is not easy occurrence logic mistake.
Embodiment 5, the present embodiment is on embodiment 4 basis, after pitch-controlled system starts, control unit continues by the temperature in the lasting each casing of detection pitch-controlled system of each temperature transducer, the heater starting in casing during lower than setting value III when temperature in casing heats, when temperature in casing stops heating after high 5 DEG C than setting value III; The draught fan starting in casing after temperature in casing is higher than setting value IV dispels the heat, when temperature in casing stops heat radiation after low 5 DEG C than setting value IV; When temperature in casing, detects after timing certain hour during lower than setting value IV higher than setting value III again.In the present embodiment, the temperature time delay of 5 DEG C is set with respect to desired temperature, avoids the frequent operation of Working condition regulator, extended its life-span.
Embodiment 6, the present embodiment is on embodiment 5 basis, after pitch-controlled system starts, control unit detects the humidity in pitch-controlled system axle control case by humidity transducer, the heater starting in the time that the humidity in axle control case is more than or equal to setting value in axle control case carries out heating and dehumidification, when the humidity in axle control case does not need heating and dehumidification lower than the temperature in setting value or axle control case during higher than setting value V, after timing certain hour, detect again.In the present embodiment, increased a desired temperature as auxiliary parameter, that has avoided that pitch-controlled system causes because heating and dehumidification is invalid under hot environment cannot starting problem.
Embodiment 7, the present embodiment is on embodiment 6 basis, after pitch-controlled system starts, control unit detects motor temperature by thermistor, when motor temperature is carried feathering signal to pitch-controlled system during higher than setting value, motor temperature is detected, avoided motor to damage because operating temperature is too high.
Embodiment 8, and as in Figure 2-4, the present embodiment is identical with embodiment 6 controlling method, just determine that desired temperature I is 5 DEG C, and setting value II is 10 DEG C, and setting value III is 15 DEG C, and setting value IV is 30 DEG C, and setting value V is 50 DEG C; Humidity set point is 90%; Certain hour in described step (1) is 60 minutes; Remaining certain hour is 10 minutes.
Claims (9)
1. a controlling method for pitch-controlled system, is used a kind of control gear of pitch-controlled system, and this control gear comprises housing, has power interface on housing, has control unit in housing, and this control unit is electrically connected with power interface; And control unit is also electrically connected with the temperature transducer, heater, humidity transducer, the draught fan that are arranged in axle control case of pitch-controlled system; Control unit also temperature transducer, heater, the draught fan in the cell box corresponding with above-mentioned axle control case with being arranged on pitch-controlled system is electrically connected; The control unit also thermistor on the motor corresponding with above-mentioned cell box with being arranged on pitch-controlled system is electrically connected; In addition control unit is also connected to the contactor corresponding with the power switch relay of pitch-controlled system by switch, it is characterized in that, comprises the steps:
(1) control unit detects the temperature in the each casing of pitch-controlled system by each temperature transducer, the heater starting in casing during lower than setting value II when temperature in casing heats, when temperature in casing is higher than setting value I continuous heating certain hour, or when in casing, temperature is higher than setting value II, control unit records the starting condition that temperature meets pitch-controlled system;
(2) control unit detects the humidity in pitch-controlled system axle control case by humidity transducer, the heater starting in the time that the humidity in axle control case is greater than setting value in axle control case carries out heating and dehumidification, when humidity in axle control case is lower than setting value or temperature during higher than setting value V, control unit records the starting condition that humidity meets pitch-controlled system;
(3) in the time that temperature and humidity all meets the starting condition of pitch-controlled system, the switch closure that control unit control is attached thereto, when the switch being connected with all control units is all after closure, contactor obtains the power switch relay of electric adhesive pitch-controlled system, pitch-controlled system is obtained electric.
2. controlling method according to claim 1, is characterized in that: on housing, also include communication interface, this communication interface is USB interface, CAN interface, RS232 interface or RS485 interface, and above-mentioned communication interface is electrically connected with control unit.
3. controlling method according to claim 1, is characterized in that: on housing, also include tutorial light, described tutorial light is electrically connected with control unit.
4. controlling method according to claim 1, it is characterized in that: after pitch-controlled system starts, control unit detects the temperature in the each casing of pitch-controlled system by each temperature transducer, the heater starting in casing during lower than setting value III when temperature in casing heats, when temperature in casing stops heating after high 5 DEG C than setting value III; The draught fan starting in casing after temperature in casing is higher than setting value IV dispels the heat, when temperature in casing stops heat radiation after low 5 DEG C than setting value IV; When temperature in casing, detects after timing certain hour during lower than setting value IV higher than setting value III again.
5. controlling method according to claim 1, it is characterized in that: after pitch-controlled system starts, control unit detects the humidity in pitch-controlled system axle control case by humidity transducer, the heater starting in the time that the humidity in axle control case is more than or equal to setting value in axle control case carries out heating and dehumidification, when the humidity in axle control case does not need heating and dehumidification lower than the temperature in setting value or axle control case during higher than setting value V, after timing certain hour, detect again.
6. controlling method according to claim 1, is characterized in that: after pitch-controlled system starts, control unit detects motor temperature by thermistor, when motor temperature is carried feathering signal to pitch-controlled system during higher than setting value.
7. controlling method according to claim 4, is characterized in that: described setting value I is 5 DEG C, and setting value II is 10 DEG C, and setting value III is 15 DEG C, and setting value IV is 30 DEG C, and setting value V is 50 DEG C, and humidity set point is 90%.
8. controlling method according to claim 1, is characterized in that: the certain hour in described step (1) is 60 minutes.
9. according to the controlling method described in any one in claim 4-5, it is characterized in that: described certain hour is 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210129352.8A CN102644547B (en) | 2012-04-21 | 2012-04-21 | Control method of variable-pitch system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210129352.8A CN102644547B (en) | 2012-04-21 | 2012-04-21 | Control method of variable-pitch system |
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| Publication Number | Publication Date |
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| CN102644547A CN102644547A (en) | 2012-08-22 |
| CN102644547B true CN102644547B (en) | 2014-09-17 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101311527B (en) * | 2007-05-23 | 2012-10-03 | 连云港杰瑞电子有限公司 | Pitch control system of wind mill generator |
| CN201372892Y (en) * | 2009-03-12 | 2009-12-30 | 苏州能健电气有限公司 | Low-temperature control system of wind generator propeller adjusting device |
| CN201401279Y (en) * | 2009-04-23 | 2010-02-10 | 锋电能源技术有限公司 | Low-temperature type wind generating set pitch-controlled device |
| CN201608249U (en) * | 2009-09-28 | 2010-10-13 | 国网电力科学研究院 | Variable-pitch battery box body of wind generating set |
| CN202732219U (en) * | 2012-04-21 | 2013-02-13 | 埃斯倍风电科技(青岛)有限公司 | Controlling device of pitch system |
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