CN105179165A - Variable-pitch voltage stabilization wind power motor regulation and control system - Google Patents
Variable-pitch voltage stabilization wind power motor regulation and control system Download PDFInfo
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- CN105179165A CN105179165A CN201510460372.7A CN201510460372A CN105179165A CN 105179165 A CN105179165 A CN 105179165A CN 201510460372 A CN201510460372 A CN 201510460372A CN 105179165 A CN105179165 A CN 105179165A
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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
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses a variable-pitch voltage stabilization wind power motor regulation and control system. The variable-pitch voltage stabilization wind power motor regulation and control system comprises a speed controller, a power controller, a pitch controller a wind wheel, a speed-increase gearbox and an electric generator. The speed controller and a power converter are both connected with the pitch controller, the wind wheel, the speed-increase gearbox and the electric generator which are sequentially connected. A microcontroller module, a low noise amplifier, a rotating speed sensor, a power sensor and a voltage stabilizer are arranged on the electric generator. The rotating speed sensor and the power sensor are connected with the microcontroller module through the low noise amplifier. The microcontroller module is connected with the speed controller and the power controller through the voltage stabilizer.
Description
Technical field
The present invention relates to a kind of electric machine control system, particularly relate to a kind of feather voltage stabilizing wind-force electrical machinery regulator control system, belong to Motor Control Field.
Background technique
Along with continuous maturation and the development of wind power technology, the superiority of pitch-controlled wind-driven generator seems more outstanding: can improve wind energy conversion system reliability of operation, the output power curve that can ensure high power coefficient again He continue to optimize.Adopt the wind energy conversion system of pulp distance varying mechanism that impeller weight can be made to alleviate, the force-bearing situation of complete machine is greatly improved, makes Wind turbines likely under different wind speed, remain optimal conversion efficiency, make output power maximum, thus improve systematic function.Along with the increase of Wind turbines power level, feather technology is adopted to be trend of the times.Current Bian Jiang actuator mainly contains two kinds:
Hydraulic variable-pitch and electric pitch-changing, can be divided into unified change oar and independent pitch two kinds by its control mode.The independent pitch distance technology that oar basis grows up is become unified, often prop up blade and change propeller pitch angle independently according to the control law of oneself, effectively can solve the load problem of non-uniform of the parts such as blade and pylon, have compact structure simple, be easy to apply the advantages such as various control, reliability are high, be more and more subject to the welcome of international wind-power market.
MW class variable speed constant frequency feather Wind turbines is the wind-force type of at present Technical comparing advanced person in the world, from development trend from now on, must replace fixed pitch wind turbine and become main force's type of wind power generating set.Wherein feather technology occupies critical role in the research of variable speed constant frequency wind energy conversion system, is the precondition that variable speed constant frequency technology realizes.Study this technology, can improve the flexibility of Wind turbines, extending the life-span of unit, is the focus of current foreign study, but domestic very few to this research.Carry out project verification to this perspective problem to subsidize, grasp the independent feathering control technology possessing independent intellectual property right, for breaking the monopolization of developed country to the wind generating technology of advanced person, promote further developing all by significant of China's wind-power electricity generation cause.
In order to obtain enough starting conditions, the controller with high reliability is needed in pitch-variable system, the controller of CJ1M series Programmable logic Controller (PLC) (PLC) as pitch-variable system of OMRON company is have employed in the present invention, devise PLC software program, and abroad certain well-known wind-powered electricity generation company wind power generating set does experiment.
The wind power generating set low voltage regulating controller of such as application number " 201310457332.8 ", comprises solid-state switch, eliminator, rectification circuit, meritorious consumption circuit, first power inverter and second largest power inverter.The present invention adopts high-power electric and electronic current transformer and solid-state switch to be arranged between blower fan and electrical network, when causing line voltage to decline when electric power system generation temporary short circuit fault, Quick supports for active power and wattless power, constant to maintain the grid-connected point voltage in fan stator side, thus ensure blower fan not off-grid and stable to be incorporated into the power networks.Not only solve this technical barrier of low voltage crossing existed in wind-power electricity generation, and the effect played stable system voltage, suppress system voltage fluctuation, improve the quality of power supply, reduce via net loss simultaneously, increase wind park generating, reduce the impact to Fan Equipment, more can avoid the situation of complete resection while of Wind turbines; And this system three-phase completely independently controls, symmetrical and asymmetric fault situation can be successfully managed.
And for example application number be " 201510137328.2 " a kind of wind-driven generator power factor season adjust control system, comprise clock generator, controller, digital to analog converter and amplifier; Clock generator is connected with controller, and clock generator provides the time for controller, and controller calculated season according to this time, sends the numeral regulating the adjustment of wind power generating set power factor by seasonal variations; The output terminal of the input end connection control device of digital to analog converter, the digital signal that controller exports is converted to analogue signal by digital to analog converter; The input end of amplifier is connected with the output terminal of digital to analog converter, and the output terminal of amplifier connects wind power generating set, and amplifier is used for regulating the field current of wind power generating set after being amplified by the signal that digital to analog converter exports.The present invention can make wind-driven generator when seasonal variations, and its power factor changes automatically.
Summary of the invention
Technical problem to be solved by this invention provides a kind of feather voltage stabilizing wind-force electrical machinery regulator control system system for the deficiency of background technique.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of feather voltage stabilizing wind-force electrical machinery regulator control system, comprise speed controller, power controller, slurry apart from controller, wind wheel, speedup box, generator, described speed controller, power controller connect the slurry distance controller, wind wheel, speedup box, the generator that connect successively respectively; Described generator is provided with micro controller module, low noise amplifier, speed probe, power sensor and voltage stabilizer, described speed probe is connected micro controller module with power sensor respectively by low noise amplifier, and described micro controller module is connected with speed controller and power controller respectively by voltage stabilizer;
Described voltage stabilizer comprises stabilized power supply chip, first electrochemical capacitor, second electrochemical capacitor, inductance, first resistance, second resistance and diode, the negative pole of described first electrochemical capacitor connects one end of the first resistance and the output terminal of micro controller module respectively, the other end of the first resistance connects the input end of stabilized power supply chip, the negative pole of diode connects one end of inductance and the output terminal of stabilized power supply chip respectively, the input end of connection speed controller and power controller respectively after the other end of inductance and the second resistant series, the negative pole of the second electrochemical capacitor, the positive pole of the first electrochemical capacitor, the positive pole of the second electrochemical capacitor, the grounding end of stabilized power supply chip, the positive pole of diode is connected to ground.
As the further preferred version of a kind of feather of the present invention voltage stabilizing wind-force electrical machinery regulator control system, described generator adopts rated power to be the wind-driven generator of 550kW.
As the further preferred version of a kind of feather of the present invention voltage stabilizing wind-force electrical machinery regulator control system, the chip model of described speed probe is A5S05.
As the further preferred version of a kind of feather of the present invention voltage stabilizing wind-force electrical machinery regulator control system, described micro controller module adopts AVR series monolithic.
As the further preferred version of a kind of feather of the present invention voltage stabilizing wind-force electrical machinery regulator control system, described micro controller module adopts LCD display display motor speed parameter.
The present invention adopts above technological scheme compared with prior art, has following technique effect:
1, the present invention effectively can improve the flexibility of Wind turbines, extends the life-span of unit;
2, the present invention adopts the wind energy conversion system of pulp distance varying mechanism that impeller weight can be made to alleviate, and the force-bearing situation of complete machine is greatly improved, makes Wind turbines likely under different wind speed, remain optimal conversion efficiency, make output power maximum, thus improves systematic function.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention;
Fig. 2 is the circuit diagram of voltage stabilizer of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technological scheme of the present invention is described in further detail:
As shown in Figure 1, the present invention designs a kind of feather voltage stabilizing wind-force electrical machinery regulator control system, comprise speed controller, power controller, slurry apart from controller, wind wheel, speedup box, generator, described speed controller, power controller connect the slurry distance controller, wind wheel, speedup box, the generator that connect successively respectively; Described generator is provided with micro controller module, low noise amplifier, speed probe, power sensor and voltage stabilizer, described speed probe is connected micro controller module with power sensor respectively by low noise amplifier, and described micro controller module is connected with speed controller and power controller respectively by voltage stabilizer;
As shown in Figure 2, described voltage stabilizer comprises stabilized power supply chip, first electrochemical capacitor, second electrochemical capacitor, inductance, first resistance, second resistance and diode, the negative pole of described first electrochemical capacitor connects one end of the first resistance and the output terminal of micro controller module respectively, the other end of the first resistance connects the input end of stabilized power supply chip, the negative pole of diode connects one end of inductance and the output terminal of stabilized power supply chip respectively, the input end of connection speed controller and power controller respectively after the other end of inductance and the second resistant series, the negative pole of the second electrochemical capacitor, the positive pole of the first electrochemical capacitor, the positive pole of the second electrochemical capacitor, the grounding end of stabilized power supply chip, the positive pole of diode is connected to ground.
Wherein, described generator adopts rated power to be the wind-driven generator of 550kW, the chip model of described speed probe is A5S05, and described micro controller module adopts AVR series monolithic, and described micro controller module adopts LCD display display motor speed parameter.
The present invention effectively can improve the flexibility of Wind turbines, extends the life-span of unit; The present invention adopts the wind energy conversion system of pulp distance varying mechanism that impeller weight can be made to alleviate, and the force-bearing situation of complete machine is greatly improved, and makes Wind turbines likely under different wind speed, remain optimal conversion efficiency, makes output power maximum, thus improves systematic function.
Feather speed governing is one of main mode of speed regulation of modern wind generator.Arrangements for speed regulation are reduced because wind speed increases the trend making wheel speed accelerate by the mode increasing propeller pitch angle.When wind speed increases, the action of feather oil hydraulic cylinder, promotes blade and rotates the wind energy minimizing that blade is absorbed to the direction that propeller pitch angle increases, maintain wind wheel and operate in nominal speed range.When wind speed reduces, carry out inverse operation, the power realizing wind wheel absorption can keep constant substantially.The advantages such as hydraulic control system has that driving torque is large, lightweight, rigidity is large, registration, hydraulic actuator rapid dynamic response speed, can ensure more quickly and accurately blade adjustments to predetermined pitch.The variable pitch device of the large-scale wind driven generator of current domestic production and operation adopts hydraulic system as power system mostly.
Before motor is connected to the grid, carries out variable pitch control by speed controller according to the speed feedback signal of motor, determines that blade is in standby or feather position according to rotating speed and wind velocity signal; After motor is connected to the grid, power controller works, and power governor adopts PI to control usually, and power error signal obtains propeller pitch angle position after PI computing.
When wind-driven generator is in outage state, propeller pitch angle is in 90 firm positions, and at this moment air-flow does not produce torque to blade; When wind energy conversion system becomes running state from outage state, propeller pitch angle is firmly reduced to standby angle (in native system be 15 firm) with certain speed (about 1 firm/s) by 90; If wind speed reaches grid-connected wind speed, propeller pitch angle continues to be reduced to 3 firm (propeller pitch angle has optimal wind energy coefficient of adsorption when 3 firm left and right); After generator is connected to the grid, when wind speed is less than rated wind speed, propeller pitch angle is remained on 3 firm constant; When wind speed is higher than rated wind speed, according to power feedback signal, controller exports the voltage of-10 ~+10V to Proportional valve, the direction of control ratio valve output flow and size.The feather oil hydraulic cylinder in proportion flow that exports of valve and direction handles the propeller pitch angle of blade, and output power is maintained near rated power.If break down or when having a halt command, controller will export rapid feathering order, make wind-force function quick shutdown, and feathering speed can reach 20 firm/s.
A kind of feather voltage stabilizing wind-force electrical machinery regulator control system system, comprise speed controller, power controller, slurry apart from controller, wind wheel, speedup box, generator, described speed controller, power inverter connect the slurry distance controller, wind wheel, speedup box, the generator that connect successively respectively; Described generator is provided with micro controller module and connected speed probe, power sensor and display modular; Described micro controller module is connected with speed controller and power controller respectively.
The present invention effectively can improve the flexibility of Wind turbines, extends the life-span of unit; The present invention adopts the wind energy conversion system of pulp distance varying mechanism that impeller weight can be made to alleviate, and the force-bearing situation of complete machine is greatly improved, and makes Wind turbines likely under different wind speed, remain optimal conversion efficiency, makes output power maximum, thus improves systematic function.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the inventing up and down of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technological scheme basis is done, all falls within scope.By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned mode of execution, in the ken that those of ordinary skill in the art possess, makes a variety of changes under can also or else departing from the prerequisite of present inventive concept.
Claims (5)
1. a feather voltage stabilizing wind-force electrical machinery regulator control system, it is characterized in that: comprise speed controller, power controller, slurry apart from controller, wind wheel, speedup box, generator, described speed controller, power controller connect the slurry distance controller, wind wheel, speedup box, the generator that connect successively respectively; Described generator is provided with micro controller module, low noise amplifier, speed probe, power sensor and voltage stabilizer, described speed probe is connected micro controller module with power sensor respectively by low noise amplifier, and described micro controller module is connected with speed controller and power controller respectively by voltage stabilizer;
Described voltage stabilizer comprises stabilized power supply chip, first electrochemical capacitor, second electrochemical capacitor, inductance, first resistance, second resistance and diode, the negative pole of described first electrochemical capacitor connects one end of the first resistance and the output terminal of micro controller module respectively, the other end of the first resistance connects the input end of stabilized power supply chip, the negative pole of diode connects one end of inductance and the output terminal of stabilized power supply chip respectively, the input end of connection speed controller and power controller respectively after the other end of inductance and the second resistant series, the negative pole of the second electrochemical capacitor, the positive pole of the first electrochemical capacitor, the positive pole of the second electrochemical capacitor, the grounding end of stabilized power supply chip, the positive pole of diode is connected to ground.
2. a kind of feather voltage stabilizing wind-force electrical machinery regulator control system according to claim 1, is characterized in that: described generator adopts rated power to be the wind-driven generator of 550kW.
3. a kind of feather voltage stabilizing wind-force electrical machinery regulator control system according to claim 1, is characterized in that: the chip model of described speed probe is A5S05.
4. a kind of feather voltage stabilizing wind-force electrical machinery regulator control system according to claim 1, is characterized in that: described micro controller module adopts AVR series monolithic.
5. a kind of feather voltage stabilizing wind-force electrical machinery regulator control system according to claim 1, is characterized in that: described micro controller module adopts LCD display display motor speed parameter.
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| CN201510460372.7A CN105179165A (en) | 2015-07-31 | 2015-07-31 | Variable-pitch voltage stabilization wind power motor regulation and control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894916A (en) * | 2018-06-11 | 2018-11-27 | 四川茂烨建筑智能化工程有限公司 | A kind of wind-driven generator rotation speed regulating and controlling system |
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| WO2008093540A1 (en) * | 2007-01-29 | 2008-08-07 | Mitsubishi Heavy Industries, Ltd. | Wind-driven generator |
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2015
- 2015-07-31 CN CN201510460372.7A patent/CN105179165A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008093540A1 (en) * | 2007-01-29 | 2008-08-07 | Mitsubishi Heavy Industries, Ltd. | Wind-driven generator |
| CN101325344A (en) * | 2008-07-18 | 2008-12-17 | 徐剑雄 | Low wind velocity charging controller for minitype wind power generator |
| US20130085621A1 (en) * | 2011-10-04 | 2013-04-04 | Institute Of Nuclear Energy Research Atomic Energy Council Executive Yuan | Hybrid intelligent control method and system for power generating apparatuses |
| CN203434938U (en) * | 2013-07-08 | 2014-02-12 | 吴江市同心电子科技有限公司 | Ultra-wideband high-gain low-noise amplifier |
| CN103397983A (en) * | 2013-07-18 | 2013-11-20 | 上海交通大学 | Method of active power and speed control for variable speed wind turbines |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894916A (en) * | 2018-06-11 | 2018-11-27 | 四川茂烨建筑智能化工程有限公司 | A kind of wind-driven generator rotation speed regulating and controlling system |
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Application publication date: 20151223 |