CN201708754U - DC motor driver of wind power generation active pitch control system - Google Patents
DC motor driver of wind power generation active pitch control system Download PDFInfo
- Publication number
- CN201708754U CN201708754U CN2010202172870U CN201020217287U CN201708754U CN 201708754 U CN201708754 U CN 201708754U CN 2010202172870 U CN2010202172870 U CN 2010202172870U CN 201020217287 U CN201020217287 U CN 201020217287U CN 201708754 U CN201708754 U CN 201708754U
- Authority
- CN
- China
- Prior art keywords
- signal
- unit
- driver
- control system
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The utility model belongs to the technical field of wind power generation and provides a DC motor driver of an active pitch control system which includes a power loop part and a control loop part; wherein the power loop part includes a rectifier unit, an energy consumption brake unit, a power switch circuit, an AC input phase sequence detecting unit, a bus voltage and output current detecting unit, etc; the control loop part comprises an analog signal sampling unit, a digital signal input collecting circuit, a speed signal collecting unit, a digital signal output unit, an upper computer information interacting unit, etc. The DC motor driver of the wind power generation active pitch control system mainly has the beneficial effects of high reliability, excellent performance, and perfect protection functions; moreover, the DC motor driver of the wind power generation active pitch control system is suitable to be applied on occasions of wind power generation active pitch control system of low speed and large moment, frequent starting, quick response speed, and higher requirement on reliability.
Description
Technical field
The utility model belongs to technical field of wind power generation, particularly is used for the driver that wind generating variable-propeller control system need not to provide the excitation of direct current generator power supply, especially is a kind of driver of variable blade control system separately excited DC machine.
Background technology
Wind power generation is subjected to the extensive attention of various countries as the renewable and clean energy resource of present technology maturation.Variable blade control system is a building block important in the wind generator system, and to be control blade pitch angle automatically adjust with the size of wind speed its major function: when low wind speed, allow wind-driven generator have maximum starting torque; When wind speed is too high, change the angle of attack of air-flow, and then change wind-driven generator acquisition aerodynamic torque, make output of a generator keep stable blade.
Motor driver is one of critical component of variable blade control system.The motor driver major function of variable blade control system comprises that the output, fault message of collection, digital switch quantity signal and the control signal of analog and digital signal are handled and protection and with the information interaction of host computer etc.The design of motor driver is closely related with the motor type of selecting for use, it has determined function, the hardware circuit of system, software controlling strategies etc., in view of the direct current machine staring torque is fit to the characteristics of pitch-controlled system applications greatly, therefore be necessary to design variable blade control system DC motor driver in a kind of wind-powered electricity generation field of function admirable.
The utility model content
The purpose of this utility model is to solve above-mentioned technical problem, provides a kind of reliability height, the direct-current motor driver of wind generating variable-propeller control system of function admirable.
The purpose of this utility model is achieved through the following technical solutions:
A kind of direct-current motor driver of wind generating variable-propeller control system comprises the loop of power circuit part and controls this loop of power circuit control loop part partly,
Wherein, described loop of power circuit partly comprises:
Rectification unit is used for input ac voltage is transformed into DC bus-bar voltage;
The dynamic braking unit is made of electronic switch and power resistor, and described electronic switch is by turn-offing and connect the described power resistor of energy, in order to protect driver by energy consumption to reduce busbar voltage;
Power switch circuit is made of four device for power switching of two-phase brachium pontis, by control two-phase brachium pontis up and down two groups of power switchs break-make so that be used for turn-offing and connecting direct current machine;
Described control loop part is based on microprocessor, and comprises:
The motor velocity signal collecting unit in order to the rate signal of picking rate checkout gear, constitutes the closed loop feedback rate signal of described driver, and reports to the police under hypervelocity or zero-speed situation;
The collection of simulant signal unit is in order to current detecting unit, busbar voltage detecting unit and the supply voltage monitoring unit of gathering described driver and the analog signal of velocity setting unit;
The digital signal acquiring input unit is in order to gather the level signal that action command logic, fault reseting logic and phase sequence detection. electronics produce;
The digital signal output unit in order to according to the driver operation conditions, produces digital quantity signal;
The pulse width modulating signal generation unit produces the modulation signal of power controlling switching circuit in order to and the rate signal that speed detector detects, the current signal of current sampling circuit sampling given according to closed loop;
The processing unit of communicating by letter with host computer, in order to the information interaction of host computer.
Further, described device for power switching is selected insulated gate bipolar transistor IGBT for use, or metal-oxide-semiconductor field effect t MOSFET.
Again further, one of them brachium pontis of described power switch circuit is controlled by logic level signal, be used to change the direction of receiving direct current machine voltage, thereby change the direct current machine direction of rotation, another brachium pontis is controlled by pulse width modulating signal, recently change the size of receiving the direct current machine armature voltage by the duty that changes the power switch break-make, thereby change dc motor speed.
Further, described device for power switching maybe can be selected silicon controlled rectifier for use.
Again further, one of them brachium pontis of described power switch circuit is controlled by logic level signal, be used to change the direction of receiving direct current machine voltage, thereby change the direct current machine direction of rotation, another brachium pontis is by conducting trigger angle signal controlling, change the size of receiving the direct current machine armature voltage by the conducting trigger angle that changes the silicon controlled rectifier break-make, thereby change dc motor speed.
Further, one group of device for power switching is connected to the anode of busbar voltage above the described two-phase brachium pontis, below one group of device for power switching be connected to the negative terminal of busbar voltage, two mid points of brachium pontis are coupled to direct current machine armature winding.
Further, described loop of power circuit part also comprises the driver element that is used to control dynamic braking unit and power switch circuit, this driver element one end is coupled to control loop partly accepts the microprocessor logic signal, and the other end is coupled to described dynamic braking unit and power switch circuit to control its break-make.
Further, described driver comprises also and is used to detect the whether phase sequence detection. electronics of phase shortage of input voltage that this device produces a saltus step level and keeps this level to disappear up to the phase shortage phenomenon when detecting the input voltage phase shortage.
Further, described driver also comprises the voltage detection unit that is used to detect the DC bus-bar voltage that the rectification link produces, and busbar voltage can be converted to the signal that microprocessor can be discerned.
Further, described driver also comprises the current detecting unit that is used to detect the driver output current, converts output current to signal that microprocessor can be discerned by current sense device and capacitance resistance ware.
Further, described driver also comprises the speed detection unit that is used to detect the direct current machine real-time speed, can be the signal of telecommunication or the logical signal that microprocessor can be discerned with the conversion of signals by tachogenerator, pulse coder or other speed detection equipment collections.
The beneficial effects of the utility model are mainly reflected in: the reliability height; Function admirable; Defencive function is perfect; Be fit to wind generating variable-propeller control system low-speed and large-torque, Fraquent start, fast, the higher applications of response speed to reliability requirement.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is a loop of power circuit schematic diagram of the present utility model.
Fig. 3 is the theory diagram that utilizes tachogenerator to test the speed.
Fig. 4 is the theory diagram that utilizes encoder to test the speed.
Embodiment
The utility model has disclosed a kind of driver of wind generating variable-propeller control system direct current machine, comprises the loop of power circuit part and controls this loop of power circuit control loop part partly, and described loop of power circuit partly comprises:
(1) rectification unit is used for input ac voltage is transformed into DC bus-bar voltage.
(2) dynamic braking unit is made of electronic switch and power resistor, and described electronic switch is by turn-offing and connect the described power resistor of energy, in order to protect driver by energy consumption to reduce busbar voltage; When busbar voltage is in below the normal voltage threshold values; electronic switch turn-offs; the dynamic braking unit is inoperative; under the busbar voltage abnormal conditions, raise and surpass the assigned voltage threshold values; electronic switch is opened; power resistor inserts bus, and the mode by energy consumption reduces the purpose that busbar voltage reaches the protection power electronic device.
(3) power switch circuit is made of four device for power switching of two-phase brachium pontis, by pulse width modulation and logic level signal control two-phase brachium pontis up and down two groups of power switchs break-make so that be used for turn-offing and connecting direct current machine; One of them brachium pontis is controlled by logic level signal, be used to change the direction of receiving direct current machine voltage, thereby change the direct current machine direction of rotation, another brachium pontis is by pulse width modulation (PWM) signal controlling, recently change the size of receiving the direct current machine armature voltage by the duty that changes the power switch break-make, thereby change dc motor speed; Described device for power switching is selected insulated gate bipolar transistor IGBT for use, or metal-oxide-semiconductor field effect t MOSFET or other switching devices.One group of device for power switching is connected to the anode of busbar voltage above the described two-phase brachium pontis, below one group of device for power switching be connected to the negative terminal of busbar voltage, two mid points of brachium pontis are coupled to direct current machine armature winding.The signal logic of two power switchs is opposite about the same brachium pontis; Two brachium pontis symmetries select brachium pontis to control voltage direction or voltage swing can be according to the actual conditions adjustment.Certainly, device for power switching maybe can be selected silicon controlled rectifier for use, one of them brachium pontis of described power switch circuit is controlled by logic level signal, be used to change the direction of receiving direct current machine voltage, thereby change the direct current machine direction of rotation, another brachium pontis changes the size of receiving the direct current machine armature voltage by conducting trigger angle signal controlling by the conducting trigger angle that changes the silicon controlled rectifier break-make, thereby changes dc motor speed.
(4) be used to control the driver element of dynamic braking unit and power switch circuit, this driver element one end is coupled to control loop partly accepts the microprocessor logic signal, and the other end is coupled to described dynamic braking unit and power switch circuit to control its break-make.
Further, described driver also comprises:
(5) be used to detect the whether phase sequence detection. electronics of phase shortage of input voltage, this device produces a saltus step level and keeps this level to disappear up to the phase shortage phenomenon when detecting the input voltage phase shortage.
(6) be used to detect the voltage detection unit of the DC bus-bar voltage that the rectification link produces, described busbar voltage detecting unit is transformed into the voltage signal that microprocessor can be discerned by divider resistance by a certain percentage with busbar voltage.
(7) be used to detect the current detecting unit of driver output current, convert output current to signal that microprocessor can be discerned by current sense device and capacitance resistance ware.
(8) being used to detect the speed detection unit of direct current machine real-time speed, can be the signal of telecommunication or the logical signal that microprocessor can be discerned with the conversion of signals by tachogenerator, pulse coder or other speed detection equipment collections.
Further, the control loop of described driver part is based on microprocessor, and comprises:
(1) motor velocity signal collecting unit in order to the rate signal of picking rate checkout gear, constitutes the closed loop feedback rate signal of described driver, and reports to the police under hypervelocity or zero-speed situation.
(2) current sampling unit, busbar voltage detecting unit and analog signals such as supply voltage monitoring and velocity setting unit are gathered in collection of simulant signal unit, this unit;
Wherein, described output current sampling unit is made of operational amplifier and peripheral components.The closed loop feedback signal of the current signal of output current detecting unit as software algorithm gathered in this unit, can obtain big starting torque when guaranteeing the starting of motor low speed on the one hand, makes its response given speed rapidly; It is excessive to limit output current on the other hand, protection driver and direct current machine.Current sampling signal constitutes the closed loop feedback current signal of described driver.
Described motor speed collecting unit designs according to the motor velocity signal detection mode: if adopt tachogenerator to test the speed, then this unit is made of operational amplifier and peripheral components; If adopt encoder to test the speed, then this unit is by microprocessor capturing unit capture velocity signal.The rate signal of gathering guarantees motor tracing preset speed on the one hand as software algorithm closed loop feedback signal; Prevent the excessive and driving of motor speed on the other hand.It is given that the velocity setting signal constitutes described driver closed loop.
The supply voltage pilot signal constitutes the triggering source of supply voltage fault.
Described busbar voltage detecting unit is made of operational amplifier and peripheral components, gathers the voltage signal that the busbar voltage detecting unit is sent here.When busbar voltage surpasses dynamic braking unit action threshold values, control circuit sends brake unit and opens instruction; When busbar voltage surpasses the overvoltage threshold values, control circuit is reported to the police and is shut down.Bus voltage signal is through the logical process of microprocessor, and as the triggering source of dynamic braking unit, meanwhile, if the brake resistance of dynamic braking unit controls fails to reduce busbar voltage, control circuit will be reported to the police.
(3) digital signal acquiring input unit, this unit are gathered the level signal of action command logic, fault reseting logic and the generation of phase sequence detection. electronics etc.Wherein microprocessor produces operation or halt command after receiving the action command logic; After receiving the fault reseting logic, produce the fault reset command; After receiving the default phase signal existence, then do to report to the police and handle.Described digital signal input unit is made of light lotus root and peripheral components.The signal of gathering mainly contains phase shortage logic, action command logic, fault reseting logic etc.When the default phase signal existence, control circuit is reported to the police and is shut down; When action command exists, under the trouble-free situation of system, control circuit is carried out operating instruction; When the fault existence that resets, control circuit carries out the software reset to fault-signal.
(4) digital signal output unit, this unit produce digital quantity signals such as fan moves, system is normal according to system operation situation.Described digital signal output unit is made of light lotus root and peripheral components.Digital output signal mainly contains fan operation, system's normal state signal etc.The driver radiator temperature surpasses prescribed threshold, and control circuit sends the fan run signal; Driver fault-free, control circuit are sent system's normal state signal and are given the user with indication.
(5) pulse width modulating signal generation unit, the current signal of the rate signal that this unit is given according to closed loop and speed detector detects, current sampling circuit sampling etc. produces the modulation signal of power controlling switching circuit.
(6) processing unit of communicating by letter with host computer, the communication interface that this unit adopts is preferentially selected serial communication interface (RS485 or RS232 etc.) for use, is used for user's modification, stores, reads the parameter of driver, with the information interaction of host computer.
This control loop part course of work: control circuit detects digital input logic and analog input signal in real time, judge that driver has fault-free: if there is not fault then having under the situation of action command, according to given speed and feedback speed size and feedback current, handle through internal algorithm, the duty cycle signals of controlled power circuit and motor traffic direction logic are as the input of driver element; If fault is arranged, control circuit will be reported to the police and shut down.
The technical solution of the utility model specifically as shown in Figure 1, conversion obtains DC bus-bar voltage through ac/dc to exchange the three-phase input, the dynamic braking unit comes into force under the situation of busbar voltage above the action threshold values to reduce busbar voltage, and the pulse width modulation of power circuit process obtains the voltage with the speed command coupling.Control circuit is gathered analog signals such as busbar voltage, output current, motor velocity signal can be that the analog signal input also can be the pulse input of encoder according to the difference of speed-measuring method, and wherein output current and motor velocity signal constitute the input variable of software closed-loop control algorithm; While also gathers phase sequence based on the control circuit of microprocessor and detects digital signals such as logic, action command, reset command, and the digital signal of output has fan operation control, driver operation preparation etc.; The information interaction of driver and host computer realizes by communication unit.
Fig. 2 provides the utility model master loop of power circuit schematic diagram.Wherein: T is the ac/dc rectification unit, C is bus capacitor (acting as energy storage and filtering), G2 is the switching device of control energy consumption resistance R break-make, and G3～G6 is four switching devices of two-phase brachium pontis (are example with the insulated gate bipolar transistor IGBT), and L1 is the armature winding.
The three-phase alternating current input obtains DC bus-bar voltage through diode rectification unit T and bus capacitor C.Switching device G2 and power resistor R constitute the dynamic braking unit, and G2 is subjected to the microprocessor logic signal controlling, and whether decision R inserts the dc bus loop.Switching device G3～G6 constitutes loop of power circuit two-phase brachium pontis, wherein G3, G4 are same brachium pontis two switching devices up and down, the emitter of G3 links to each other with the G4 collector electrode, the two drive signal complementation, G5, G6 are another brachium pontis two switching devices up and down, the emitter of G5 links to each other with the G6 collector electrode, the two drive signal complementation; G3, G5 collector electrode connect the busbar voltage anode, and G4, G6 emitter connect the busbar voltage negative terminal.Because two-phase brachium pontis symmetry, a brachium pontis are by the logic control of motor direction of rotation, another brachium pontis is then by the pulse width modulating signal control of regulating output voltage, and two groups of signal exchanges can be according to the practical application adjustment.Armature winding L1 one end is connected to the mid point that G3, G4 form brachium pontis, and the other end is connected to the mid point that G5, G6 form brachium pontis.
Fig. 3 and Fig. 4 are two embodiment theory diagrams of the utility model.Fig. 3 is the connection layout that utilizes tachogenerator to test the speed.The analog voltage signal of tachogenerator output is directly proportional with motor speed, the control veneer converts this voltage signal to analog signal that control chip (single-chip microcomputer or digital signal processor) can be discerned by a certain percentage by sample circuit, and control chip concerns that in proportion the numerical value that the processing mould/the number conversion passage obtains obtains motor speed.Fig. 4 is the theory diagram that utilizes encoder to test the speed.The pulse signal of encoder is caught in the pulse capture unit of control chip, calculates pulse number within a certain period of time, calculates motor speed according to the umber of pulse of encoder revolution.
The utility model still has multiple concrete execution mode.All employings are equal to replacement or equivalent transformation and all technical schemes of forming, all drop within the claimed scope of the utility model.
Claims (11)
1. direct-current motor driver of wind generating variable-propeller control system comprises the loop of power circuit part and controls the control loop part of this loop of power circuit part, it is characterized in that: described loop of power circuit partly comprises,
Rectification unit is used for input ac voltage is transformed into DC bus-bar voltage;
The dynamic braking unit is made of electronic switch and power resistor, and described electronic switch is by turn-offing and connect the described power resistor of energy, in order to protect driver by energy consumption to reduce busbar voltage;
Power switch circuit is made of four device for power switching of two-phase brachium pontis, by control two-phase brachium pontis up and down two groups of power switchs break-make so that be used for turn-offing and connecting direct current machine;
The control loop of described driver part is based on microprocessor, and comprises,
The motor velocity signal collecting unit in order to the rate signal of picking rate checkout gear, constitutes the closed loop feedback rate signal of described driver, and reports to the police under hypervelocity or zero-speed situation;
The collection of simulant signal unit is in order to current detecting unit, busbar voltage detecting unit and the supply voltage monitoring unit of gathering described driver and the analog signal of velocity setting unit;
The digital signal acquiring input unit is in order to gather the level signal that action command logic, fault reseting logic and phase sequence detection. electronics produce;
The digital signal output unit in order to according to the driver operation conditions, produces digital quantity signal;
The pulse width modulating signal generation unit produces the modulation signal of power controlling switching circuit in order to and the rate signal that speed detector detects, the current signal of current sampling circuit sampling given according to closed loop;
The processing unit of communicating by letter with host computer, in order to the information interaction of host computer.
2. direct-current motor driver of wind generating variable-propeller control system according to claim 1 is characterized in that: described device for power switching is selected insulated gate bipolar transistor IGBT for use, or metal-oxide-semiconductor field effect t MOSFET.
3. direct-current motor driver of wind generating variable-propeller control system according to claim 2, it is characterized in that: one of them brachium pontis of described power switch circuit is controlled by logic level signal, be used to change the direction of receiving direct current machine voltage, thereby change the direct current machine direction of rotation, another brachium pontis is controlled by pulse width modulating signal, recently change the size of receiving the direct current machine armature voltage by the duty that changes the power switch break-make, thereby change dc motor speed.
4. direct-current motor driver of wind generating variable-propeller control system according to claim 1 is characterized in that: described device for power switching is selected silicon controlled rectifier for use.
5. direct-current motor driver of wind generating variable-propeller control system according to claim 4, it is characterized in that: one of them brachium pontis of described power switch circuit is controlled by logic level signal, be used to change the direction of receiving direct current machine voltage, thereby change the direct current machine direction of rotation, another brachium pontis is by conducting trigger angle signal controlling, change the size of receiving the direct current machine armature voltage by the conducting trigger angle that changes the silicon controlled rectifier break-make, thereby change dc motor speed.
6. according to described any one direct-current motor driver of wind generating variable-propeller control system of claim 1-5, it is characterized in that: one group of device for power switching is connected to the anode of busbar voltage above the described two-phase brachium pontis, below one group of device for power switching be connected to the negative terminal of busbar voltage, two mid points of brachium pontis are coupled to direct current machine armature winding.
7. direct-current motor driver of wind generating variable-propeller control system according to claim 6, it is characterized in that: described loop of power circuit part also comprises the driver element that is used to control dynamic braking unit and power switch circuit, this driver element one end is coupled to control loop partly accepts the microprocessor logic signal, and the other end is coupled to described dynamic braking unit and power switch circuit to control its break-make.
8. direct-current motor driver of wind generating variable-propeller control system according to claim 7, it is characterized in that: described driver also comprises and is used to detect the whether phase sequence detection. electronics of phase shortage of input voltage, this device produces a saltus step level and keeps this level to disappear up to the phase shortage phenomenon when detecting the input voltage phase shortage.
9. direct-current motor driver of wind generating variable-propeller control system according to claim 8, it is characterized in that: described driver also comprises the voltage detection unit that is used to detect the DC bus-bar voltage that the rectification link produces, and busbar voltage can be converted to the signal that microprocessor can be discerned.
10. direct-current motor driver of wind generating variable-propeller control system according to claim 9, it is characterized in that: described driver also comprises the current detecting unit that is used to detect the driver output current, converts output current to signal that microprocessor can be discerned by current sense device and capacitance resistance ware.
11. direct-current motor driver of wind generating variable-propeller control system according to claim 10, it is characterized in that: described driver also comprises the speed detection unit that is used to detect the direct current machine real-time speed, can be the signal of telecommunication or the logical signal that microprocessor can be discerned with the conversion of signals by tachogenerator, pulse coder or other speed detection equipment collections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202172870U CN201708754U (en) | 2010-06-07 | 2010-06-07 | DC motor driver of wind power generation active pitch control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202172870U CN201708754U (en) | 2010-06-07 | 2010-06-07 | DC motor driver of wind power generation active pitch control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708754U true CN201708754U (en) | 2011-01-12 |
Family
ID=43445904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202172870U Expired - Fee Related CN201708754U (en) | 2010-06-07 | 2010-06-07 | DC motor driver of wind power generation active pitch control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201708754U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841292A (en) * | 2010-06-07 | 2010-09-22 | 苏州能健电气有限公司 | Direct-current motor driver of wind generating variable-propeller control system |
| CN102330637A (en) * | 2011-09-24 | 2012-01-25 | 广东工业大学 | Control system for double-fed wind driven generator |
| CN103092093A (en) * | 2011-11-01 | 2013-05-08 | Abb公司 | A motor drive and a method for configuring a motor drive |
| CN107104610A (en) * | 2017-06-21 | 2017-08-29 | 今创科技有限公司 | A kind of braking circuit and shield door |
| CN111120185A (en) * | 2019-12-02 | 2020-05-08 | 柳江 | Mud pulse generator |
| CN113606098A (en) * | 2021-08-23 | 2021-11-05 | 哈电风能有限公司 | Method and system for detecting aerodynamic abnormality of blades of wind turbine generator and storage medium |
-
2010
- 2010-06-07 CN CN2010202172870U patent/CN201708754U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841292A (en) * | 2010-06-07 | 2010-09-22 | 苏州能健电气有限公司 | Direct-current motor driver of wind generating variable-propeller control system |
| CN101841292B (en) * | 2010-06-07 | 2012-01-11 | 苏州能健电气有限公司 | Direct-current motor driver of wind generating variable-propeller control system |
| CN102330637A (en) * | 2011-09-24 | 2012-01-25 | 广东工业大学 | Control system for double-fed wind driven generator |
| CN103092093A (en) * | 2011-11-01 | 2013-05-08 | Abb公司 | A motor drive and a method for configuring a motor drive |
| CN107104610A (en) * | 2017-06-21 | 2017-08-29 | 今创科技有限公司 | A kind of braking circuit and shield door |
| CN111120185A (en) * | 2019-12-02 | 2020-05-08 | 柳江 | Mud pulse generator |
| CN111120185B (en) * | 2019-12-02 | 2021-07-30 | 柳江 | Mud pulse generator |
| CN113606098A (en) * | 2021-08-23 | 2021-11-05 | 哈电风能有限公司 | Method and system for detecting aerodynamic abnormality of blades of wind turbine generator and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101841292B (en) | Direct-current motor driver of wind generating variable-propeller control system | |
| CN101860310A (en) | Drive control circuit and method of series DC machine for pitch control system | |
| CN201708754U (en) | DC motor driver of wind power generation active pitch control system | |
| CN104283212B (en) | A kind of double-fed wind power generator group Physical Simulation Platform based on CompactRIO | |
| CN1992464A (en) | Control system of wind turbines | |
| CN201730811U (en) | Photovoltaic water pump controller | |
| CN102412773B (en) | Control circuit of switched reluctance motor with double chopped wave limits | |
| CN201708756U (en) | Driving device of series excited DC motor of variable paddle control system | |
| CN101702532A (en) | Charge controller of wind turbine generator and control method thereof | |
| CN203399045U (en) | Chopper-control speed regulation and energy conservation device for asynchronous motor | |
| CN102121454B (en) | Wind power generation variable propeller driver and method | |
| CN101860311B (en) | Drive device of series DC machine for pitch control system | |
| CN202121543U (en) | AC motor driving device with vector control used in variable-pitch control system | |
| CN201352706Y (en) | Digital multifunctional motor protector | |
| CN102832871A (en) | Vector control based driving device of alternating current motor for pitch control system | |
| CN102299673B (en) | Cooperative chopped wave starting circuit and method for switched reluctance motor | |
| CN201708755U (en) | Drive control circuit of series direct-current motor of variable propeller control system | |
| CN106207974B (en) | Dc motor protector and its operation method | |
| CN102035459B (en) | Intelligent motor controller | |
| CN110277942A (en) | Simplified three-level inverter drives control system for permanent-magnet synchronous motor | |
| CN205811517U (en) | Dc motor protector | |
| CN101119088A (en) | Whole controlled energy feedback system | |
| CN204258333U (en) | A kind of dual feedback wind power generation system | |
| CN204118736U (en) | A kind of double-fed wind power generator group Physical Simulation Platform based on CompactRIO | |
| CN202414942U (en) | Integrated controller of auto-bypass frequency-conversion escalator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20120607 |