CN101355254B - Non-principal shaft half directly-drive permanent magnet wind generating set and control method thereof - Google Patents
Non-principal shaft half directly-drive permanent magnet wind generating set and control method thereof Download PDFInfo
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- CN101355254B CN101355254B CN2008100427868A CN200810042786A CN101355254B CN 101355254 B CN101355254 B CN 101355254B CN 2008100427868 A CN2008100427868 A CN 2008100427868A CN 200810042786 A CN200810042786 A CN 200810042786A CN 101355254 B CN101355254 B CN 101355254B
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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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
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The invention discloses a spindle-free semi-direct-drive permanent-magnet wind generating set in the technical field of wind power generation, which comprises a gear case, a permanent-magnet synchronous generator, an impeller, a control system, a grid-connected inverter circuit, a shell, and a tower, wherein the impeller is connected with an input end of the gear case arranged in the shell; an input end of the permanent-magnet synchronous generator is connected with an output end of the gear case; the permanent-magnet synchronous generator and the gear case are simultaneously arranged inside the shell; an output end of the permanent-magnet synchronous generator is connected to a power grid through the grid-connected inverter circuit; the control system is positioned on the rear of the permanent-magnet synchronous generator inside the shell and is respectively connected with a control end of the grid-connected inverter circuit and a control end of the permanent-magnet synchronous generator to receive a state signal of the generator and send a control command, and the bottom of the shell is provided with the rotatable tower which is used to support. The spindle-free semi-direct-drive permanent-magnet wind generating set adopts a structure which has no spindle and coupling, and radically meets the requirements in the prior technology on the rigidity of the spindle, the neutrality and the axial float; and the horizontal axial length of the unit is greatly reduced, which saves space and reduces the weight of the whole machine.
Description
Technical field
The present invention relates to a kind of device and control method thereof of technical field of wind power generation, specifically is a kind of non-principal shaft half directly-drive permanent magnet wind generating unit and control method thereof.
Background technology
Along with fast development of social economy, people grow with each passing day to the demand of the energy, and the environmental pollution that brings thus also increases the weight of day by day.So the development of new energy, green energy resource is imperative.Rationally utilize free of contamination wind energy, promote the well-being of mankind, become an important channel obtaining green energy resource.Utilize wind power generation, from the eighties rise in last century, through vicennial development, technical merit reaches its maturity.
Find through retrieval prior art, Chinese patent application number is 200710010445.8, publication number is the application for a patent for invention of CN101016881, put down in writing a kind of " megawatt semi-direct driving type wind driven generator group ", this technology comprises: wind wheel, variable pitch device, main shaft, gearbox, shaft coupling, generator, chassis, cabin, yaw motor and control system, on the chassis, cabin, be fixed with yaw motor, generator, the sidewall on gearbox and chassis, cabin is fixed, gearbox is the planetary step-up gear of one-level, and motor is the low-speed permanent-magnet three-phase synchronous generator.But the prior art comprises the main shaft rigidity that produced by main shaft and main shaft to neutral and axial play problem, and the length of unit horizontal axis also can increase.The no king post system of employing, the planetary step-up gear of one-level drives a large-sized low-speed magneto alternator generating.The flange form of gear box input, output end face connects, and can avoid being fixed in because of its gear box the sidewall on chassis, cabin, and cabin sidewall that causes and chassis joint stress are concentrated, and installation, fixing more convenient.
Summary of the invention
The objective of the invention is to deficiency at existing wind energy conversion system structure, a kind of non-principal shaft half directly-drive permanent magnet wind generating unit and control method thereof are provided, the rigidity that solves main shaft in the prior art by no main axle structure reaches neutral and axial play problem, guarantee that by the feedback loop of control system power output is stable, improve the generating efficiency of wind-force.
The present invention is achieved by the following technical solutions, the present invention relates to the non-principal shaft half directly-drive permanent magnet wind generating unit comprises: gear box, magneto alternator, impeller, control system, grid-connected inverter circuit, housing and pylon, wherein: the impeller gear box input interior with being arranged at housing is connected, the input of magneto alternator links to each other with the output of gear box and is arranged at enclosure interior simultaneously, the output of magneto alternator is connected to electrical network after via grid-connected inverter circuit, control system is positioned at the rear of enclosure interior magneto alternator, control system connects the control end of the control end of grid-connected inverter circuit and magneto alternator respectively to receive generator status signal and transmitting control commands, the rotating pylon that housing bottom is provided for supporting;
Described generator status signal comprises temperature signal, tach signal, power output signal, vibration signal, wind velocity signal and wind direction signals;
Described control command comprises halt command, transfer oar order, power be incorporated into the power networks order, driftage order, cooling order and lubricated order.
Described grid-connected inverter circuit comprises rectifier bridge and parallel network reverse control module, the input of rectifier bridge is connected with the output of magneto alternator, the control end of rectifier bridge is connected with control system with the through-put power output signal, the input of parallel network reverse control module is connected with the output of rectifier bridge, and the control end of parallel network reverse control module is connected with control system with the received power order of being incorporated into the power networks.
Described control system comprises: sampling module, driver module, master control module and display module, wherein: the output of master control module is connected with output and shows the generator status signal with display module, sampling module connects impeller, gear box, magneto alternator, grid-connected inverter circuit and housing respectively to gather the generator status signal, the output of sampling module is connected to the input of master control module, the input of driver module connects the master control module, and driver module connects impeller, housing and gear box respectively to implement control command.
Described master control module comprises: the propeller pitch angle control unit; the power tracking control unit is incorporated into the power networks; temperature control unit and lubricated control unit; the master control module is according to the temperature signal that receives; tach signal; power output signal; vibration signal and wind velocity signal and wind direction signals and be stored in the rated temperature level of master control inside modules; the rated speed level; the rated power output level; specified vibration level and rated wind speed level and specified wind direction level compare computing respectively, and according to the result of comparison operation respectively by the propeller pitch angle control unit; the power tracking control unit is incorporated into the power networks; temperature control unit and lubricated control unit are to transferring the oar control module; parallel network reverse control module and cabin control module send halt command; transfer the oar order; the power order of being incorporated into the power networks; the driftage order; cooling order and lubricated order.
Described sampling module comprises temperature sensing unit, the revolution speed sensing unit, the electric current and voltage sensing unit, the vibrating sensing unit, wind speed and direction sensing unit and accent oar signal sampling unit, wherein: temperature sensing unit respectively with gear box, magneto alternator and rectifier bridge connect and the collecting temperature signal, the revolution speed sensing unit is connected with magneto alternator and gathers tach signal, the electric current and voltage sensing unit is connected with rectifier bridge and gathers power output signal, the vibrating sensing unit is connected with housing and gathers vibration signal, the wind speed and direction sensing unit is connected and gathers wind velocity signal and the wind direction signals that housing receives with case top, pitch angle sensing unit is connected with the root of blade of impeller and gathers the blade angle signal.
Described driver module comprises transfers oar motor, yaw motor and lubricating pump, wherein: transfer the oar motor to be arranged on the impeller, transfer the input of oar motor to connect the output of master control module to receive the order of accent oar, yaw motor is arranged at pylon, the input of yaw motor connects the output of master control module to receive the driftage order, lubricating pump is arranged on the gear box, and the input of lubricating pump connects the output of master control module to receive lubricated order.
The control method of the non-principal shaft half directly-drive permanent magnet wind generating unit as described that the present invention relates to specifically may further comprise the steps:
1. master control module startup self-detection, the operation initialize process;
2. the sense samples module begins sampling and temperature signal, tach signal, power output signal, vibration signal, wind velocity signal and wind direction signals is transferred to the master control module, and the master control module is received the back and is stored in its inner rated temperature level, specified vibration level, rated wind speed level and specified wind direction level and compares computing respectively;
3. master control module is carried out fault judgement according to the comparison operation result:
1) then sends halt command greater than specified vibration level or tach signal greater than the rated speed level when vibration signal;
2) then send the outage caused by strong wind order greater than the rated wind speed level when wind velocity signal;
3) then send the high temperature halt command greater than the rated temperature level when temperature signal;
4) all begin to generate electricity by way of merging two or more grid systems when above-mentioned judgement by starter-generator then.
4. enter normal operation mode, the master control module starts propeller pitch angle control unit, the power tracking control unit that is incorporated into the power networks, temperature control and lubricates control unit, and this device begins to grid power transmission; Send tach signal and power output signal by revolution speed sensing unit and electric current and voltage sensing unit to the master control module simultaneously, compare computing by the master control module subsequently:
1) when tach signal during less than the rated speed level, the master control module is regulated permanent magnet generator rotating speed, the current best power point of searching system according to tach signal, power output signal, wind velocity signal and wind direction signals by changing power output;
2) make tach signal greater than rated speed level or power output signal during when the increase of wheel speed greater than nominal power level, the master control module is transferred the work of oar electric motor starting by transferring the control of oar control module, transfer the oar motor to adjust the propeller pitch angle of impeller to reduce wheel speed, make the rotating speed of permanent magnet generator and the output of parallel network reverse module keep stable, realize firm power control.
Described propeller pitch angle control unit specifically is to utilize the vane angle PID control of transferring oar motor and yaw motor to realize rotating speed of target and target power.When wind speed begins to change propeller pitch angle, the change value of propeller pitch angle and the corresponding relation such as the following table of wind speed during greater than rated wind speed 13 meter per seconds:
The described power tracking control unit that is incorporated into the power networks carries out following operation:
1) guarantee the to be incorporated into the power networks start-up course of voltage, the power of this process inverter output guarantees generator output voltage greater than the voltage of setting that is incorporated into the power networks, and does not consider that the wind energy of best tip-speed ratio absorbs this moment;
2) power tracking behind the satisfied voltage that is incorporated into the power networks, this process is carried out the adjusting of generator speed, absorbs maximal wind-energy.In conjunction with wind speed, propeller pitch angle, generator output voltage, generator speed information, adopt power based on the new output of the improvement algorithm computation of search by hill climbing.
Described temperature control unit compares the temperature signal received and the rated temperature level that is stored in the master control inside modules, when temperature signal then sends halt command by master controller during greater than the rated temperature level.
Described lubricated control unit sends lubricated order and lubricates action to the cabin control module to carry out in certain lubrication time interval, this lubrication time is stored in the master control module.
The present invention is by carrying out feedback loop control to impeller and permanent magnet generator, the feasible power invariability that finally exports electrical network to; Adopt no main shaft and coupler structure, fundamentally solved in the present technology to the rigidity of main shaft and to the requirement of neutral and axial endplay; The length of unit horizontal axis is reduced greatly, has saved the space, has alleviated complete machine weight.
Description of drawings
Fig. 1 overall structure figure of the present invention;
Fig. 2 is a control system schematic diagram among the embodiment.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: impeller 1, gear box 2, magneto alternator 3, housing 4, control system 5, grid-connected inverter circuit 6 and pylon 7, wherein: impeller 1 is connected with gear box 2 inputs in being arranged at housing 4, the input of magneto alternator 3 links to each other with the output of gear box 2 and is arranged at housing 4 inside simultaneously, the output of magneto alternator 3 is connected to electrical network after via grid-connected inverter circuit 6, control system 5 is positioned at the rear of enclosure interior magneto alternator 3, control system 5 connects the control end of the control end of grid-connected inverter circuit 6 and magneto alternator 3 respectively to receive generator status signal and transmitting control commands, the rotating pylon 7 that housing 4 bottoms are provided for supporting;
Described impeller 1 is three blade impellers, and its working speed is 10 rev/mins-20 rev/mins.
Described magneto alternator 3 is a low speed rare earth permanent magnet synchronous generator, and its rated speed is 150 rev/mins.
As shown in Figure 2, the described grid-connected inverter circuit 6 of present embodiment comprises rectifier bridge and parallel network reverse control module, the input of rectifier bridge is connected with the output of magneto alternator 3, the control end of rectifier bridge is connected with the through-put power output signal with control system 5, the input of parallel network reverse control module is connected with the output of rectifier bridge, and the control end of parallel network reverse control module is connected with control system 5 with the received power order of being incorporated into the power networks.
Described generator status signal comprises temperature signal, tach signal, power output signal, vibration signal, wind velocity signal and wind direction signals;
Described control command comprises halt command, transfer oar order, power be incorporated into the power networks order, driftage order, cooling order and lubricated order.
Described control system 5 comprises: sampling module, driver module, master control module and display module, wherein: the output of master control module is connected with output and shows the generator status signal with display module, sampling module connects impeller 1, gear box 2, magneto alternator 3, grid-connected inverter circuit 6 and housing 4 respectively to gather the generator status signal, the output of sampling module is connected to the input of master control module, the input of driver module connects the master control module, and driver module connects impeller 1, housing 4 and gear box 2 respectively to implement control command.
Described master control module comprises: the propeller pitch angle control unit; the power tracking control unit is incorporated into the power networks; temperature control unit and lubricated control unit; the master control module is according to the temperature signal that receives; tach signal; power output signal; vibration signal and wind velocity signal and wind direction signals and be stored in the rated temperature level of master control inside modules; the rated speed level; the rated power output level; specified vibration level and rated wind speed level and specified wind direction level compare computing respectively, and according to the result of comparison operation respectively by the propeller pitch angle control unit; the power tracking control unit is incorporated into the power networks; temperature control unit and lubricated control unit are to transferring the oar control module; parallel network reverse control module and cabin control module send halt command; transfer the oar order; the power order of being incorporated into the power networks; the driftage order; cooling order and lubricated order.
Described sampling module comprises temperature sensing unit, the revolution speed sensing unit, the electric current and voltage sensing unit, the vibrating sensing unit, wind speed and direction sensing unit and accent oar signal sampling unit, wherein: temperature sensing unit respectively with gear box 2, magneto alternator 3 and rectifier bridge connect and the collecting temperature signal, the revolution speed sensing unit is connected with magneto alternator 3 and gathers tach signal, the electric current and voltage sensing unit is connected with rectifier bridge and gathers power output signal, the vibrating sensing unit is connected with housing 4 and gathers vibration signal, the wind speed and direction sensing unit is connected and gathers wind velocity signal and the wind direction signals that housing 4 receives with housing 4 tops, and pitch angle sensing unit is connected with the root of blade of impeller 1 and gathers the blade angle signal.
Described driver module comprises transfers oar motor, yaw motor and lubricating pump, wherein: transfer the oar motor to be arranged on the impeller 1, transfer the input of oar motor to connect the output of master control module to receive the order of accent oar, yaw motor is arranged at pylon 7, the input of yaw motor connects the output of master control module to receive the driftage order, lubricating pump is arranged on the gear box 2, and the input of lubricating pump connects the output of master control module to receive lubricated order.
The concrete implementation step of the control method of described non-principal shaft half directly-drive permanent magnet wind generating unit is as follows:
1. master control module startup self-detection, the operation initialize process;
2. the sense samples module begins sampling and temperature signal, tach signal, power output signal, vibration signal, wind velocity signal and wind direction signals is transferred to the master control module, and the master control module is received the back and is stored in its inner rated temperature level, specified vibration level, rated wind speed level and specified wind direction level and compares computing respectively;
3. master control module is carried out fault judgement according to the comparison operation result:
1) then sends halt command greater than specified vibration level or tach signal greater than the rated speed level when vibration signal;
2) then send the outage caused by strong wind order greater than the rated wind speed level when wind velocity signal;
3) then send the high temperature halt command greater than the rated temperature level when temperature signal;
4) all begin to generate electricity by way of merging two or more grid systems when above-mentioned judgement by starter-generator then.
4. enter normal operation mode, the master control module starts propeller pitch angle control unit, the power tracking control unit that is incorporated into the power networks, temperature control and lubricates control unit, and this device begins to grid power transmission; Send tach signal and power output signal by revolution speed sensing unit and electric current and voltage sensing unit to the master control module simultaneously, compare computing by the master control module subsequently:
1) when tach signal during less than the rated speed level, the master control module is regulated permanent magnet generator rotating speed, the current best power point of searching system according to tach signal, power output signal, wind velocity signal and wind direction signals by changing power output;
2) make tach signal greater than rated speed level or power output signal during when the increase of impeller 1 rotating speed greater than nominal power level, the master control module is transferred the work of oar electric motor starting by transferring the control of oar control module, transfer the oar motor to adjust the propeller pitch angle of impeller 1 to reduce impeller 1 rotating speed, make the rotating speed of permanent magnet generator and the output of parallel network reverse module keep stable, realize firm power control.
Described propeller pitch angle control unit specifically is to utilize the vane angle PID control of transferring oar motor and yaw motor to realize rotating speed of target and target power.When wind speed begins to change propeller pitch angle, the change value of propeller pitch angle and the corresponding relation such as the following table of wind speed during greater than rated wind speed 13 meter per seconds:
The described power tracking control unit that is incorporated into the power networks carries out following operation:
1) guarantee the to be incorporated into the power networks start-up course of voltage, the power of this process inverter output guarantees generator output voltage greater than the voltage of setting that is incorporated into the power networks, and does not consider that the wind energy of best tip-speed ratio absorbs this moment;
2) power tracking behind the satisfied voltage that is incorporated into the power networks, this process is carried out the adjusting of generator speed, absorbs maximal wind-energy.In conjunction with wind speed, propeller pitch angle, generator output voltage, generator speed information, adopt power based on the new output of the improvement algorithm computation of search by hill climbing.
Described temperature control unit compares the temperature signal received and the rated temperature level that is stored in the master control inside modules, when temperature signal then sends halt command by master controller during greater than the rated temperature level.
Described lubricated control unit sends lubricated order and lubricates action to the cabin control module to carry out in certain lubrication time interval, this lubrication time is stored in the master control module.
Claims (10)
1. non-principal shaft half directly-drive permanent magnet wind generating unit, it is characterized in that, comprise: gear box, magneto alternator, impeller, control system, grid-connected inverter circuit, housing and pylon, wherein: the impeller gear box input interior with being arranged at housing is connected, the input of magneto alternator links to each other with the output of gear box and is arranged at enclosure interior simultaneously, the output of magneto alternator is connected to electrical network after via grid-connected inverter circuit, control system is positioned at the rear of enclosure interior magneto alternator, control system connects the control end of the control end of grid-connected inverter circuit and magneto alternator respectively to receive generator status signal and transmitting control commands, the rotating pylon that housing bottom is provided for supporting;
Described generator status signal comprises temperature signal, tach signal, power output signal, vibration signal, wind velocity signal and wind direction signals; Described control command comprises halt command, transfer oar order, power be incorporated into the power networks order, driftage order, cooling order and lubricated order.
2. non-principal shaft half directly-drive permanent magnet wind generating unit according to claim 1, it is characterized in that, described grid-connected inverter circuit comprises: rectifier bridge and parallel network reverse control module, the input of rectifier bridge is connected with the output of magneto alternator, the control end of rectifier bridge is connected with control system with the through-put power output signal, the input of parallel network reverse control module is connected with the output of rectifier bridge, and the control end of parallel network reverse control module is connected with control system with the received power order of being incorporated into the power networks.
3. non-principal shaft half directly-drive permanent magnet wind generating unit according to claim 1, it is characterized in that, described control system comprises: sampling module, driver module, master control module and display module, wherein: the output of master control module is connected with output and shows the generator status signal with display module, sampling module connects impeller respectively, gear box, magneto alternator, grid-connected inverter circuit and housing are to gather the generator status signal, the output of sampling module is connected to the input of master control module, the input of driver module connects the master control module, and driver module connects impeller respectively, housing and gear box are to implement control command.
4. non-principal shaft half directly-drive permanent magnet wind generating unit according to claim 3; it is characterized in that; described master control module comprises: the propeller pitch angle control unit; the power tracking control unit is incorporated into the power networks; temperature control unit and lubricated control unit; the master control module is according to the temperature signal that receives; tach signal; power output signal; vibration signal; wind velocity signal and wind direction signals and be stored in the rated temperature level of master control inside modules; the rated speed level; the rated power output level; specified vibration level; rated wind speed level and specified wind direction level compare computing respectively, and according to the result of comparison operation respectively by the propeller pitch angle control unit; the power tracking control unit is incorporated into the power networks; temperature control unit and lubricated control unit are to transferring the oar control module; parallel network reverse control module and cabin control module send halt command; transfer the oar order; the power order of being incorporated into the power networks; the driftage order; cooling order and lubricated order.
5. non-principal shaft half directly-drive permanent magnet wind generating unit according to claim 3, it is characterized in that, described sampling module comprises: temperature sensing unit, the revolution speed sensing unit, the electric current and voltage sensing unit, the vibrating sensing unit, wind speed and direction sensing unit and accent oar signal sampling unit, wherein: temperature sensing unit respectively with gear box, magneto alternator and rectifier bridge connect and the collecting temperature signal, the revolution speed sensing unit is connected with magneto alternator and gathers tach signal, the electric current and voltage sensing unit is connected with rectifier bridge and gathers power output signal, the vibrating sensing unit is connected with housing and gathers vibration signal, the wind speed and direction sensing unit is connected and gathers wind velocity signal and the wind direction signals that housing receives with case top, transfer oar signal sampling unit to be connected with the root of blade of impeller and gather the blade angle signal.
6. non-principal shaft half directly-drive permanent magnet wind generating unit according to claim 3, it is characterized in that, described driver module comprises: transfer oar motor, yaw motor and lubricating pump, wherein: transfer the oar motor to be arranged on the impeller, transfer the input of oar motor to connect the output of master control module to receive the order of accent oar, yaw motor is arranged at pylon, the input of yaw motor connects the output of master control module to receive the driftage order, lubricating pump is arranged on the gear box, and the input of lubricating pump connects the output of master control module to receive lubricated order.
7. the control method of a non-principal shaft half directly-drive permanent magnet wind generating unit according to claim 1 is characterized in that, specifically may further comprise the steps:
1. master control module startup self-detection, the operation initialize process;
2. sampling module begins sampling and temperature signal, tach signal, power output signal, vibration signal, wind velocity signal and wind direction signals is transferred to the master control module, and the master control module is received the back and is stored in its inner rated temperature level, specified vibration level, rated wind speed level and specified wind direction level and compares computing respectively;
3. master control module is carried out fault judgement according to the comparison operation result:
4. enter normal operation mode, the master control module starts propeller pitch angle control unit, the power tracking control unit that is incorporated into the power networks, temperature control and lubricates control unit, and described non-principal shaft half directly-drive permanent magnet wind generating unit begins to grid power transmission; Send tach signal and power output signal by revolution speed sensing unit and electric current and voltage sensing unit to the master control module simultaneously, compare computing by the master control module subsequently.
8. the control method of non-principal shaft half directly-drive permanent magnet wind generating unit according to claim 7 is characterized in that, the 3. the fault judgement described in the step may further comprise the steps:
1) then sends halt command greater than specified vibration level or tach signal greater than the rated speed level when vibration signal;
2) then send the outage caused by strong wind order greater than the rated wind speed level when wind velocity signal;
3) then send the high temperature halt command greater than the rated temperature level when temperature signal;
4) all begin to generate electricity by way of merging two or more grid systems when above-mentioned judgement by starter-generator then.
9. the control method of non-principal shaft half directly-drive permanent magnet wind generating unit according to claim 7 is characterized in that, the 4. the comparing computing by the master control module subsequently and be specially described in the step:
1) when tach signal during less than the rated speed level, the master control module is regulated permanent magnet generator rotating speed, the current best power point of searching system according to tach signal, power output signal, wind velocity signal and wind direction signals by changing power output;
2) make tach signal greater than rated speed level or power output signal during when the increase of wheel speed greater than nominal power level, the master control module is transferred the work of oar electric motor starting by transferring the control of oar control module, transfer the oar motor to adjust the propeller pitch angle of impeller to reduce wheel speed, make the rotating speed of permanent magnet generator and the output of parallel network reverse module keep stable, realize firm power control.
10. the control method of non-principal shaft half directly-drive permanent magnet wind generating unit according to claim 7, it is characterized in that, the 4. the propeller pitch angle control unit described in the step specifically be to utilize the propeller pitch angle PID control of transferring oar motor and yaw motor to realize rotating speed of target and target power, when wind speed begins to change propeller pitch angle during greater than rated wind speed 13 meter per seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100427868A CN101355254B (en) | 2008-09-11 | 2008-09-11 | Non-principal shaft half directly-drive permanent magnet wind generating set and control method thereof |
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| CN2008100427868A CN101355254B (en) | 2008-09-11 | 2008-09-11 | Non-principal shaft half directly-drive permanent magnet wind generating set and control method thereof |
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| CN101355254B true CN101355254B (en) | 2011-05-18 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101571106B (en) * | 2009-06-09 | 2013-03-13 | 沈阳工业大学自控技术研究所 | Spindle-free variable-speed wind turbine generator and optimal power parameters acquisition method |
| CN102011698B (en) * | 2010-12-15 | 2013-09-04 | 北京金风科创风电设备有限公司 | Yaw control method and system for wind driven generator |
| CN103034261A (en) * | 2012-12-07 | 2013-04-10 | 无锡风电设计研究院有限公司 | Permanent magnet generator temperature control system |
| CN103216400A (en) * | 2013-04-24 | 2013-07-24 | 大连理工大学 | Half-direct-driven wind power transmission system |
| CN104675622A (en) * | 2014-12-02 | 2015-06-03 | 青岛金博士自动化技术有限公司 | Wind driven generator with variable-pitch device and control method of wind driven generator |
| CN108152034B (en) * | 2017-12-22 | 2023-11-10 | 江苏磁谷科技股份有限公司 | Device and method for monitoring running state of permanent magnet coupling transmission equipment |
| CN108880364B (en) * | 2018-07-12 | 2020-05-12 | 台州庆隆机电有限公司 | Starting control method of generator |
| CN111946547B (en) * | 2019-05-15 | 2022-08-30 | 新疆金风科技股份有限公司 | Method, device and system for adjusting pitch angle of blade of wind generating set |
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