CN109812383B - Simulation experiment training device for wind power pitch system - Google Patents
Simulation experiment training device for wind power pitch system Download PDFInfo
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- CN109812383B CN109812383B CN201910097826.7A CN201910097826A CN109812383B CN 109812383 B CN109812383 B CN 109812383B CN 201910097826 A CN201910097826 A CN 201910097826A CN 109812383 B CN109812383 B CN 109812383B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The simulation experiment training device of the wind power pitch system comprises a control cabinet and is characterized in that a PLC and a direct current motor are arranged on the control cabinet, a simulation pitch device is arranged at the output end of the direct current motor, the simulation pitch device can simulate the change of a blade angle, an encoder is arranged on the simulation pitch device, and the encoder feeds signals back to an input-output module of the PLC; the control cabinet is also provided with a fault box, a plurality of on-off switches are arranged in the fault box, the on-off switches are respectively arranged at all points of the electric loop, and any on-off switch can control the on-off of the point on the electric loop. The wind power variable pitch system is simulated, and the invention can develop structural principle learning and general gold practice aiming at universities and colleges; developing structural cognition aiming at new staff of a wind power plant, and identifying components and describing basic functions; aiming at the maintenance personnel, the electric loop troubleshooting training is carried out, and the device has the advantages of simple structure and low cost, and is favorable for rapidly culturing qualified elite talents of wind power operation and maintenance.
Description
Technical Field
The invention relates to a wind power generation system, in particular to a simulation experiment training device of a wind power pitch system.
Background
The wind power development of China steps into a fast traffic lane for over ten years, and becomes a main engine for promoting the increase of the global wind power installation quantity. However, the overspeed collapse accident of the fan frequently occurs, most of the accidents are caused by faults of a variable pitch system, but the public information of the variable pitch control system is less, and the cognition of wind power plant operation and maintenance personnel on the wind power plant operation and maintenance personnel is deficient compared with other wind power large parts; with domestic propulsion of the wind turbine, the control strategy of the wind power variable pitch system is still in the continuous perfection process, and the wind energy utilization rate can be further improved.
The pitch control system is arranged on the hub and used as a limited space, the internal layout structure is compact, the space is narrow, the light is insufficient, the difficulty of routine maintenance operation is high, the pitch control system enters and exits the hub for maintenance for many times, and the potential safety hazard is increased. The wind farm overhauling operation staff has fewer opportunities to contact the pitch-changing physical equipment, most take drawings for traffic, take a wind farm running for 8 years in Zhejiang area as an example, the average time of entering the hub for a month of overhauling staff is less than 3 hours, and the practical operation pitch-changing system practical training equipment is needed.
At present, practical training equipment of wind turbine generators and practical training equipment of a pitch control system are available in the market, but the equipment is large in size, is unfavorable for moving and carrying, and is high in manufacturing, purchasing and maintaining cost, or is only used as experimental simulation of a wind power main engine plant. The method is single in object-oriented, and cannot simultaneously take care of the gold work practice demands of students in large universities and on-site operation and maintenance personnel of the wind farm, simulate and simulate the variable pitch system, and develop the operation condition simulation demands of the variable pitch system, and cannot effectively utilize the existing scada data for analysis.
The simulation test device of the wind power pitch control system disclosed by the Chinese patent office on the 8 th and 17 th of 2016 and with the patent number of 2016200066874 comprises a simulation controller, a pitch controller, at least one driver, an alternating current pitch motor, an encoder, a direct current power supply unit, a signal relay unit, a relay control unit, a low voltage power supply unit and a signal acquisition unit for monitoring the operation of the pitch system. The signal relay unit is respectively connected with the simulation controller, the pitch controller, the signal acquisition unit, the relay control unit, the low-voltage power supply unit, the encoder and the driver. The encoder is arranged on the alternating current motor and connected with the driver. The driver is respectively connected with the direct current power supply unit and the alternating current variable pitch motor. The device has a complex structure, the whole production cost is high only by shrinking the variable pitch device, and in addition, the device is only suitable for laboratory research and cannot be used for training such as troubleshooting, overhaul and the like for staff.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides an experimental training device which has a simple structure and low cost and can simulate a wind power pitch system, so that elite talents of qualified wind power operation and maintenance can be cultivated.
The technical scheme adopted by the invention for realizing the purposes is as follows: the wind power pitch system simulation experiment training device comprises a control cabinet, wherein a PLC and a direct current motor are arranged on the control cabinet, the PLC can accept the introduction of SCADA data, an input/output module of the PLC is connected with the direct current motor through an execution feedback module, a simulation pitch device is arranged at the output end of the direct current motor, the simulation pitch device can simulate the change of a blade angle, an encoder is arranged on the simulation pitch device, and the encoder feeds signals back to an input/output module of the PLC; the control cabinet is also provided with a fault box, a plurality of on-off switches are arranged in the fault box, the on-off switches are respectively arranged at all points of the electric loop, and any on-off switch can control the on-off of the point on the electric loop.
The simulated pitch device comprises a sliding table, a screw rod which can be driven by a direct current motor is arranged on the sliding table, a sliding block which can move left and right is sleeved on the screw rod, and the change of the blade angle is simulated through the movement of the sliding block on the sliding table.
The encoder is arranged at one end of the screw rod, can read the rotation angle of the screw rod and feeds back the rotation angle to the input/output module of the PLC.
The sliding table is provided with a graduated scale, and the angle of the blade corresponding to the position of the sliding block can be read.
The sliding table is characterized in that the two ends of the sliding table are provided with the proximity switch and the limit switch, the corresponding blade is 0 degree when the sliding block abuts against the proximity switch, and the corresponding blade angle when the sliding block abuts against the limit switch is 95 degrees.
The sliding table is also provided with a movable switch, and the movable switch can be placed at any position between the proximity switch and the limit switch.
The direct current motor is provided with a speed regulator and an electromagnetic brake coil.
The PLC is also provided with an analog quantity expansion module, and can simulate the numerical values of the temperature of the variable pitch cabinet, the ambient temperature, the temperature of the motor and the wind speed and the wind direction in the real environment.
The fault box is arranged on the back of the control cabinet.
The fault box is arranged at the front side of the control cabinet, and a cover with a lock is arranged on the fault box.
The wind power variable pitch system is simulated, and the invention can develop structural principle learning and general gold practice aiming at universities and colleges; developing structural cognition aiming at new staff of a wind power plant, and identifying components and describing basic functions; aiming at maintenance personnel, electric loop troubleshooting training is carried out, and the electric loop is connected in series through a button switch, so that the maintenance personnel of the wind power plant can be conveniently trained in troubleshooting and checking; by simulating various variable pitch system layouts, real objects can be compared before fault processing, fault points can be studied in a targeted manner, fault processing time is shortened, and fault maintenance capability is improved. The device has the advantages of simple structure and low cost, and is favorable for rapidly culturing qualified elite talents of wind power operation and maintenance.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a functional block diagram of the present invention.
Detailed Description
As shown in fig. 1 and 2, the invention relates to a simulation experiment training device of a wind power pitch system, which comprises a control cabinet 6, wherein a PLC4 and a direct current motor 18 are arranged on the control cabinet 6. The PLC4 and the direct current motor 18 are powered by an external power supply, and the input end of the external power supply is provided with a leakage protection device 1, a lightning protection device 2 and an air switch 3 so as to improve the use safety. The input end of the external power supply is also provided with a UPS backup power supply 7 so as to supply power when the external power supply cannot be connected.
The PLC4 comprises an input/output module 4.1, an execution feedback module 4.2, an analog quantity expansion module 5, a communication module and the like, and a touch screen is arranged on the PLC 4. Scada data such as wind speed, blade angle and temperature stored in the fan background are imported into the PLC4 through communication connection modes such as RS 232.
The analog quantity expansion module 5 adopts an inexpensive analog quantity generator to simulate the numerical values of the temperature in the cabinet, the ambient temperature, the motor temperature and the wind speed and the wind direction in the real environment, and the real environment is reproduced through the analog quantity expansion module 5 by the received scada data.
The input/output module 4.1 of the PLC4 is connected with the dc motor 18 by the execution feedback module 4.2, and an analog pitch device is provided at the output end of the dc motor 18, which can simulate the change of the blade angle, and an encoder 12 is provided on the analog pitch device, and the encoder 12 feeds back a signal to the input/output module 4.1 of the PLC 4. The simulated pitch device comprises a sliding table 14, a screw rod 13 which can be driven by a direct current motor 18 is arranged on the sliding table 14, a sliding block 16 which can move left and right is sleeved on the screw rod 13, and the change of the blade angle is simulated through the movement of the sliding block 16 on the sliding table 14. The encoder 12 is arranged at one end of the screw rod 13, the rotation angle of the screw rod 13 can be read and fed back to the input/output module 4.1 of the PLC4, and the PLC4 can know the real-time angle of the blade according to the feedback of the encoder 12. The sliding table 14 is provided with a graduated scale 15, and the angle of the paddle corresponding to the position of the sliding block 16 can be read, so that the operator can observe the angle conveniently. The two ends of the sliding table 14 are provided with a proximity switch 24 and a limit switch 22, the corresponding blade angle when the sliding block 16 abuts against the proximity switch 24 is 0 degree, and the corresponding blade angle when the sliding block 16 abuts against the limit switch 22 is 95 degrees. The sliding table 14 is also provided with a movable switch 23, and the movable switch 23 can be placed at any position between the proximity switch 24 and the limit switch 22. The slider 16 can be restricted to move within a certain range by the proximity switch 24, the movable switch 23, and the limit switch 22.
The speed regulator 17 and the electromagnetic brake coil 21 are arranged on the direct current motor 18, and the rotating speed of the direct current motor 18 is regulated through the speed regulator 17 and the electromagnetic brake coil 21, so that the sliding block 16 can synchronously move with the rotating speed of the blade. The control cabinet 6 is also provided with a change-over switch 8, a forward and reverse switch 9, an electromagnetic brake switch and an emergency stop button 11, the direct-current motor 18 can be automatically or manually controlled through the change-over switch 8, the running direction of the direct-current motor 18 can be controlled through the forward and reverse switch 9, the electromagnetic brake coil 21 can be controlled through the electromagnetic brake switch, the direct-current motor 18 can be stopped through the emergency stop button 11, and the electromagnetic brake is locked.
All components on the control cabinet 6 are connected through wires, and a terminal block 10 is further arranged on the control cabinet 6 so as to facilitate rapid wiring. The control cabinet 6 is also provided with a fault box 19, a plurality of on-off switches 20 are arranged in the fault box 19, the on-off switches 20 are respectively arranged at all points of the electric loop, and any on-off switch 20 can control the on-off of the point on the electric loop, so that the fault point can be simulated. For the convenience of examination, the fault box 19 is disposed at the back of the control cabinet 6, so that a teacher can operate the on-off switch 20 at the back, and a student can determine where the wiring is problematic. The fault box 19 is provided with a cover with a lock on the fault box 19 if it is arranged on the front side of the control cabinet 6.
In practical training, the scada data such as wind speed, blade angle, temperature and the like stored in the fan background are imported into the PLC4 through communication connection modes such as RS232, the PLC4 reads key data such as blade angle, wind speed, motor braking action, temperature and the like under the current working condition, the blade angle is taken as a target value according to the key data, the actual running modes such as a motor braking action relay, wind speed, limit switch 22, proximity switch 24, temperature, blade angle and the like under the current wind condition are simulated according to a set program, meanwhile, the target value and the actual value of the parameters can be compared in real time through a touch screen, the existing scada data can be effectively utilized for analysis, the working conditions of a pitch control system and an electrical system are observed in real time, the simulation motion process of the pitch control system is repeatedly pushed, the scene reproduction function is realized, the pitch control system blind area and hidden trouble point are timely found, the pitch control system and the transmission system are timely optimized or technically improved, the wind power control theory is applied to the pitch control system, and the wind energy utilization rate is improved.
Claims (7)
1. The simulation experiment training device of the wind power pitch system comprises a control cabinet (6) and is characterized in that a PLC (4) and a direct current motor (18) are arranged on the control cabinet (6), the PLC (4) can accept the introduction of SCADA data, an input/output module (4.1) of the PLC (4) is connected with the direct current motor (18) through an execution feedback module (4.2), a simulation pitch device is arranged at the output end of the direct current motor (18), the simulation pitch device can simulate the change of a blade angle, an encoder (12) is arranged on the simulation pitch device, and the encoder (12) feeds signals back to the input/output module (4.1) of the PLC (4); the control cabinet (6) is also provided with a fault box (19), a plurality of on-off switches (20) are arranged in the fault box (19), the on-off switches (20) are respectively arranged at all points of the electric loop, and any on-off switch (20) can control the on-off of the point on the electric loop; the simulated pitch device comprises a sliding table (14), a screw rod (13) capable of being driven by a direct current motor (18) is arranged on the sliding table (14), a sliding block (16) capable of moving left and right is sleeved on the screw rod (13), and the change of the blade angle is simulated through the movement of the sliding block (16) on the sliding table (14); the encoder (12) is arranged at one end of the screw rod (13), can read the rotation angle of the screw rod (13), and feeds back the rotation angle to the input/output module (4.1) of the PLC (4); the sliding table (14) is provided with a graduated scale (15) which can read the angle of the blade corresponding to the position of the sliding block (16).
2. The wind power pitch system simulation experiment training device according to claim 1, wherein the two ends of the sliding table (14) are provided with a proximity switch (24) and a limit switch (22), the corresponding blade when the sliding block (16) is propped against the proximity switch (24) is 0 degree, and the corresponding blade angle when the sliding block (16) is propped against the limit switch (22) is 95 degrees.
3. The wind power pitch system simulation experiment training device according to claim 1, wherein the sliding table (14) is further provided with a movable switch (23), and the movable switch (23) can be placed at any position between the proximity switch (24) and the limit switch (22).
4. A wind power pitch system simulation experiment training apparatus according to any one of claims 1-3, characterized in that a speed regulator (17) and an electromagnetic brake coil (21) are arranged on the direct current motor (18).
5. The simulation experiment training device of the wind power pitch system according to any one of claims 1 to 3 is characterized in that an analog quantity expansion module (5) is further arranged on the PLC (4) and can simulate the numerical values of the temperature of a pitch cabinet, the ambient temperature, the temperature of a motor and the wind speed and the wind direction in a real environment.
6. The wind power pitch system simulation experiment training device according to any one of claims 1-3, wherein the fault box (19) is arranged on the back of the control cabinet (6).
7. The wind power pitch system simulation experiment training device according to any one of claims 1-3, wherein the fault box (19) is arranged at the front side of the control cabinet (6), and a cover with a lock is arranged on the fault box (19).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910097826.7A CN109812383B (en) | 2019-01-31 | 2019-01-31 | Simulation experiment training device for wind power pitch system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910097826.7A CN109812383B (en) | 2019-01-31 | 2019-01-31 | Simulation experiment training device for wind power pitch system |
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| CN109812383A CN109812383A (en) | 2019-05-28 |
| CN109812383B true CN109812383B (en) | 2023-10-13 |
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| CN113982862B (en) * | 2021-11-12 | 2024-06-07 | 华能如东八仙角海上风力发电有限责任公司 | Multi-sensor cooperative wind driven generator yaw brake pad abrasion detection system and method |
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| KR100952928B1 (en) * | 2009-10-29 | 2010-04-16 | 주식회사 케이티이엔지 | Exercising apparatus of wind power generator artificial sun and its method |
| KR101181477B1 (en) * | 2011-12-01 | 2012-09-10 | 주식회사 와우시스템 | Wind power generation test apparatus |
| CN104200724A (en) * | 2013-11-27 | 2014-12-10 | 沈阳工业大学 | Large wind turbine generator variable-pitch experiment table and simulation experiment method thereof |
| CN105679160A (en) * | 2016-03-31 | 2016-06-15 | 华北电力大学 | Wind turbine generator set operation control teaching simulation device and simulation method thereof |
| CN206471024U (en) * | 2016-08-26 | 2017-09-05 | 沈阳华纳科技有限公司 | A kind of pitch-controlled system experimental bench |
| CN209761627U (en) * | 2019-01-31 | 2019-12-10 | 国电宁波风电开发有限公司 | Simulation experiment training device for wind power pitch system |
-
2019
- 2019-01-31 CN CN201910097826.7A patent/CN109812383B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100952928B1 (en) * | 2009-10-29 | 2010-04-16 | 주식회사 케이티이엔지 | Exercising apparatus of wind power generator artificial sun and its method |
| KR101181477B1 (en) * | 2011-12-01 | 2012-09-10 | 주식회사 와우시스템 | Wind power generation test apparatus |
| CN104200724A (en) * | 2013-11-27 | 2014-12-10 | 沈阳工业大学 | Large wind turbine generator variable-pitch experiment table and simulation experiment method thereof |
| CN105679160A (en) * | 2016-03-31 | 2016-06-15 | 华北电力大学 | Wind turbine generator set operation control teaching simulation device and simulation method thereof |
| CN206471024U (en) * | 2016-08-26 | 2017-09-05 | 沈阳华纳科技有限公司 | A kind of pitch-controlled system experimental bench |
| CN209761627U (en) * | 2019-01-31 | 2019-12-10 | 国电宁波风电开发有限公司 | Simulation experiment training device for wind power pitch system |
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