CN114526197A - Hydraulic hybrid power control system and control method of wind driven generator - Google Patents
Hydraulic hybrid power control system and control method of wind driven generator Download PDFInfo
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- CN114526197A CN114526197A CN202210031465.8A CN202210031465A CN114526197A CN 114526197 A CN114526197 A CN 114526197A CN 202210031465 A CN202210031465 A CN 202210031465A CN 114526197 A CN114526197 A CN 114526197A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000001133 acceleration Effects 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims description 24
- 238000005086 pumping Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0276—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed
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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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- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a hydraulic hybrid power control system and a hydraulic hybrid power control method for a wind driven generator. A hydraulic hybrid power control system is adopted, wherein the hydraulic hybrid power control system comprises a first output shaft, an input shaft, a gear set, a second output shaft, a hydraulic accumulator, a variable hydraulic pump/motor and an oil tank; the output end of the blade shaft is connected with one end of the input shaft in parallel, the other end of the input shaft is in transmission connection with one end of a second output shaft through a gear set, the other end of the second output shaft is in coaxial connection with the shaft end of a variable hydraulic pump/motor, and two hydraulic ports of the variable hydraulic pump/motor are respectively communicated with a hydraulic energy accumulator and an oil tank; an angular acceleration sensor is mounted on the blade shaft for detecting an angular acceleration of rotation of the blade shaft. The hydraulic hybrid power control method greatly improves the response speed of the blade when the wind speed changes, improves the wind energy-mechanical energy conversion efficiency of the blade shaft and the output power of the wind driven generator, and further improves the annual electricity production of the wind driven generator.
Description
Technical Field
The invention relates to a control method of a wind driven generator in the field of wind power generation, in particular to a hydraulic hybrid power control system and a control method of the wind driven generator.
Background
With the increasing problems of global energy shortage, environmental pollution and the like, the rapid development of renewable clean energy is urgent. Wind energy is an important renewable energy source and has the characteristics of wide distribution range, abundant reserves and the like. The large-scale wind driven generator with the megawatt level or more is a mainstream machine type at present, and the large-scale wind driven generator is one of the development directions of wind power in the future.
The large-scale wind driven generators are all variable-speed wind driven generators, and the rotating speed of a blade shaft needs to be changed along with the change of the wind speed in order to obtain the maximum blade wind energy-mechanical energy conversion efficiency when the wind speed is lower than the rated wind speed. The large-scale wind driven generator has large blade radius and large blade rotational inertia, and a blade shaft can reach an expected rotating speed after a long time when the wind speed changes. The wind speed is random and changes rapidly, and the response speed of the blade shaft of the large-scale wind driven generator can not keep up with the change rate of the wind speed, so that the wind energy-mechanical energy conversion efficiency of the blade is greatly reduced, and the output power of the wind driven generator is further reduced.
The wind speed is lower than the rated wind speed of the wind driven generator for a long time in one year, so that the improvement of the response speed of the blade shaft has important significance for improving the annual electricity generation quantity of the wind driven generator. How to improve the response speed of the blade shaft of the large-scale wind driven generator becomes a difficult problem to be solved urgently in the field of wind driven generators.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a hydraulic hybrid power control system and a hydraulic hybrid power control method for a wind driven generator, and solves the technical problem that the response speed of a blade shaft of the wind driven generator is not high.
The technical scheme adopted by the invention is as follows:
a hydraulic hybrid power control system of a wind driven generator comprises:
the wind driven generator comprises blades, a blade shaft, a transmission system and a generator, wherein the blades of the wind driven generator are coaxially connected with the input end of the blade shaft, and the output end of the blade shaft is connected with the generator through the transmission system; a hydraulic hybrid power control system is adopted, and comprises a first output shaft, an input shaft, a gear set, a second output shaft, a hydraulic accumulator, a variable hydraulic pump/motor and an oil tank; the output end of the blade shaft is connected with one end of the input shaft in parallel, the other end of the input shaft is in transmission connection with one end of a second output shaft through a gear set, the other end of the second output shaft is in coaxial connection with the shaft end of a variable hydraulic pump/motor, and two hydraulic ports of the variable hydraulic pump/motor are respectively communicated with a hydraulic energy accumulator and an oil tank; an angular acceleration sensor is mounted on the blade shaft for detecting an angular acceleration of the rotation of the blade shaft.
And two hydraulic ports of the variable hydraulic pump/motor are respectively communicated with the hydraulic accumulator and the oil tank through a first hydraulic pipeline and a second hydraulic pipeline.
The gear set amplifies the variable hydraulic pump/motor to generate braking torque and driving torque which are transmitted to the vane shaft.
The structural form of the gear set is determined according to the number of variable hydraulic pumps/motors in the hydraulic hybrid power control system.
When only a single variable hydraulic pump/motor is arranged in the hydraulic hybrid power control system, the gear set adopts an axis gear.
In the hydraulic hybrid power control system, a plurality of variable hydraulic pumps/motors are connected in parallel, and a gear set adopts a planetary gear.
The control method of the hydraulic hybrid power control system comprises the following steps: the method adopts the hydraulic hybrid power control system, and during the operation of the wind driven generator, the angular acceleration sensor monitors the angular acceleration of the rotation of the blade shaft in real time and carries out the following processing control: when the wind speed is reduced, detecting that the angular acceleration of the blade shaft is negative through the angular acceleration sensor, controlling the variable hydraulic pump/motor to serve as a variable hydraulic pump, pumping oil from an oil tank to charge energy to a hydraulic energy accumulator, providing braking torque for assisting the blade shaft, reducing the rotating speed of the blade shaft until the angular acceleration sensor detects that the angular acceleration of the blade shaft is zero, and stopping the variable hydraulic pump/motor; when the wind speed rises, the angular acceleration sensor detects that the angular acceleration of the blade shaft is positive, the variable hydraulic pump/motor is controlled to serve as the variable hydraulic motor, the hydraulic accumulator releases energy, the energy is returned to an oil tank through the variable hydraulic pump/motor, the variable hydraulic pump/motor is driven to provide driving torque for assisting the blade shaft, the rotating speed of the blade shaft rises until the angular acceleration sensor detects that the angular acceleration of the blade shaft is zero, and the variable hydraulic pump/motor stops working.
The real-time working displacement of the variable hydraulic pump/motor is adjusted in real time by the angular acceleration detected by the angular acceleration sensor and the energy level of the hydraulic accumulator.
The maximum displacement of the variable hydraulic pump/motor is selected according to the requirement setting, and a single variable hydraulic pump/motor or a mode of connecting a plurality of variable hydraulic pump/motors in parallel is adopted.
The braking torque and the driving torque generated by the variable hydraulic pump/motor are amplified by the gear set and then transmitted to the blade shaft.
The invention has the beneficial effects that:
the invention can ensure that the blade shaft can reach the expected rotating speed in a short time when the wind speed changes, and the response speed of the blade shaft of the large-scale wind driven generator is improved when the wind speed changes rapidly, thereby greatly increasing the wind energy-mechanical energy conversion efficiency of the blade and further improving the output power of the wind driven generator.
The hydraulic hybrid power control method can accelerate the response speed of the blade shaft, improve the wind energy-mechanical energy conversion efficiency of the blade shaft and the output power of the wind driven generator, and further improve the annual electricity production of the wind driven generator.
Drawings
FIG. 1 is a schematic diagram of a hydraulic hybrid control system under a hydraulic hybrid control method of the present invention.
Fig. 2 is a block diagram of an embodiment of the present invention.
In the figure: 1 is a blade, 2 is a blade shaft, 3 is a transmission system, 4 is a first output shaft, 5 is a generator, 6 is an angular acceleration sensor, 7 is an input shaft, 8 is a gear set, 9 is a second output shaft, 10 is a hydraulic accumulator, 11 is a first hydraulic pipeline, 12 is a variable hydraulic pump/motor, 13 is a second hydraulic pipeline, and 14 is an oil tank; a fixed-displacement hydraulic pump 31, a variable-displacement hydraulic motor 32, a high-pressure pipeline 33 and a low-pressure pipeline 34.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, the hydraulic hybrid power control system includes a blade 1, a blade shaft 2, a transmission system 3 and a generator 5, wherein the input ends of the blade 1 and the blade shaft 2 of the wind driven generator are coaxially connected, and the output end of the blade shaft 2 is connected with the generator 5 through the transmission system 3; the method is characterized in that: a hydraulic hybrid power control system is adopted, and comprises a first output shaft 4, an input shaft 7, a gear set 8, a second output shaft 9, a hydraulic accumulator 10, a variable hydraulic pump/motor 12 and an oil tank 14; the output end of the vane shaft 2 is connected with one end of an input shaft 7 in parallel, namely the vane shaft 2 and the input shaft 7 are synchronously connected and rotate, the other end of the input shaft 7 is in transmission connection with one end of a second output shaft 9 through a gear set 8, the other end of the second output shaft 9 is coaxially connected with the shaft end of a variable hydraulic pump/motor 12, and two hydraulic ports of the variable hydraulic pump/motor 12 are respectively communicated with a hydraulic energy accumulator 10 and an oil tank 14; an angular acceleration sensor 6 is mounted on the blade shaft 2 for detecting an angular acceleration of the rotation of the blade shaft 2.
Two hydraulic ports of the variable hydraulic pump/motor 12 are respectively communicated with the hydraulic accumulator 10 and the oil tank 14 through a first hydraulic pipeline 11 and a second hydraulic pipeline 13.
The gear train 8 provided between the input shaft 7 and the variable displacement hydraulic pump/motor 12 amplifies the braking torque and the driving torque generated by the variable displacement hydraulic pump/motor 12 and transmitted to the vane shaft 2.
The configuration of the gear set 8 is determined according to the number of the variable displacement hydraulic pump/motors 12 in the hydraulic hybrid control system. The gear set 8 employs an axis gear when there is only a single variable hydraulic pump/motor 12 in the hydraulic hybrid control system. The hydraulic hybrid power control system is formed by connecting a plurality of variable hydraulic pump/motors 12 in parallel, and the gear set 8 adopts a planetary gear.
The real-time working displacement of the variable hydraulic pump/motor 12 is adjusted in real time by the angular acceleration detected by the angular acceleration sensor 6 and the energy level of the hydraulic accumulator 10, so that the response speed of the blade shaft is increased when the wind speed changes.
The maximum displacement of the variable displacement hydraulic pump/motor 12 is selected according to the demand set, either as a single variable displacement hydraulic pump/motor or as a parallel arrangement of multiple variable displacement hydraulic pump/motors.
Fig. 2 shows a structure of an embodiment of the present invention:
the embodied transmission system 3 comprises a quantitative hydraulic pump 31, a variable hydraulic motor 32, a high-pressure pipeline 33 and a low-pressure pipeline 34, wherein the quantitative hydraulic pump 31 is installed on the vane shaft 2, the shaft of the quantitative hydraulic pump 31 is adopted as the vane shaft 2, and the gear set 8 is also connected to the output end of the vane shaft 2. An oil outlet of the quantitative hydraulic pump 31 is connected with an oil inlet of the variable hydraulic motor 32 through a high-pressure pipeline 33, an oil outlet of the variable hydraulic motor 32 is connected with an oil inlet of the quantitative hydraulic pump 31 through a low-pressure pipeline 34, and a shaft end of the variable hydraulic motor 32 is used as a first output shaft 4 and connected with the generator 5. The angular acceleration sensor 6 is provided on the vane shaft 2 between the vane 1 and the fixed displacement pump 31.
The working process of the invention is as follows:
the method adopts a hydraulic hybrid power control system, and during the operation of the wind driven generator, the angular acceleration sensor 6 monitors the angular acceleration of the rotation of the blade shaft 2 in real time and carries out the following processing control:
when the wind speed is reduced, the angular acceleration sensor 6 detects that the angular acceleration of the blade shaft 2 is negative, an output signal controls the variable hydraulic pump/motor 12 to be used as a variable hydraulic pump, oil is pumped from the oil tank 14 to charge the hydraulic accumulator 10, braking torque is provided for assisting the blade shaft 2, the rotating speed of the blade shaft 2 is reduced until the angular acceleration sensor 6 detects that the angular acceleration of the blade shaft 2 is zero, and the variable hydraulic pump/motor 12 stops working;
when the wind speed rises, the angular acceleration sensor 6 detects that the angular acceleration of the blade shaft 2 is positive, the output signal controls the variable displacement hydraulic pump/motor 12 to be used as the variable displacement hydraulic motor, the hydraulic accumulator 10 releases energy and returns the energy to the oil tank 14 through the variable displacement hydraulic pump/motor 12, the variable displacement hydraulic pump/motor 12 is driven to assist in providing the blade shaft 2 with driving torque with increased rotating speed, the rotating speed of the blade shaft 2 is increased until the angular acceleration sensor 6 detects that the angular acceleration of the blade shaft 2 is zero, and then the variable displacement hydraulic pump/motor 12 stops working.
The braking torque and the driving torque generated by the variable displacement hydraulic pump/motor 12 are amplified by the gear train 8 and transmitted to the vane shaft 2.
In particular, in order to obtain the maximum wind-mechanical energy conversion efficiency of the blade shaft, the rotating speed of the blade shaft needs to be changed along with the change of the wind speed. The system is provided with a torque controller to control the torque of the blade shaft 2 and further control the blade shaft 2 to reach the expected rotating speed, and the control method of the invention is used as auxiliary control to accelerate the blade shaft 2 to reach the expected rotating speed.
Therefore, the hydraulic hybrid power control method can greatly improve the response speed of the blade when the wind speed changes, improve the wind energy-mechanical energy conversion efficiency of the blade shaft and the output power of the wind driven generator, and further improve the annual power generation capacity of the wind driven generator.
The foregoing detailed description is intended to be illustrative of the invention, which is only one, but not all embodiments of the invention. Any modification and variation made within the spirit of the present invention and the scope of the claims are within the scope of the present invention.
Claims (10)
1. A hydraulic hybrid power control system of a wind driven generator comprises a blade (1), a blade shaft (2), a transmission system (3) and a generator (5), wherein the blade (1) of the wind driven generator is coaxially connected with the input end of the blade shaft (2), and the output end of the blade shaft (2) is connected with the generator (5) through the transmission system (3); the method is characterized in that: a hydraulic hybrid power control system is adopted, and comprises a first output shaft (4), an input shaft (7), a gear set (8), a second output shaft (9), a hydraulic accumulator (10), a variable hydraulic pump/motor (12) and an oil tank (14); the output end of the vane shaft (2) is connected with one end of an input shaft (7) in parallel, the other end of the input shaft (7) is in transmission connection with one end of a second output shaft (9) through a gear set (8), the other end of the second output shaft (9) is in coaxial connection through the shaft end of a variable hydraulic pump/motor (12), and two hydraulic ports of the variable hydraulic pump/motor (12) are respectively communicated with a hydraulic energy accumulator (10) and an oil tank (14); an angular acceleration sensor (6) is mounted on the blade shaft (2) and is used for detecting the angular acceleration of the rotation of the blade shaft (2).
2. The hydraulic hybrid control system of a wind turbine according to claim 1, characterized in that: two hydraulic ports of the variable hydraulic pump/motor (12) are respectively communicated with the hydraulic accumulator (10) and the oil tank (14) through a first hydraulic pipeline (11) and a second hydraulic pipeline (13).
3. The hydraulic hybrid control system of a wind turbine according to claim 1, characterized in that: the gear set (8) amplifies the variable hydraulic pump/motor (12) to generate braking torque and driving torque which are transmitted to the vane shaft (2).
4. The hydraulic hybrid control system of a wind turbine according to claim 1, characterized in that: the structural form of the gear set (8) is determined according to the number of variable hydraulic pump/motors (12) in the hydraulic hybrid power control system.
5. The hydraulic hybrid control system of a wind turbine according to claim 4, wherein: when only a single variable hydraulic pump/motor (12) is arranged in the hydraulic hybrid power control system, the gear set (8) adopts an axial gear.
6. The hydraulic hybrid control system of a wind turbine according to claim 4, wherein: in the hydraulic hybrid power control system, a plurality of variable hydraulic pumps/motors (12) are connected in parallel, and a gear set (8) adopts a planetary gear.
7. A control method of a hydraulic hybrid control system applied to a wind power generator according to any one of claims 1 to 6, characterized in that: the method adopts the hydraulic hybrid power control system, and during the operation of the wind driven generator, the angular acceleration sensor (6) monitors the angular acceleration of the rotation of the blade shaft (2) in real time and carries out the following processing control:
when the wind speed is reduced, detecting that the angular acceleration of the blade shaft (2) is negative through the angular acceleration sensor (6), controlling the variable hydraulic pump/motor (12) to serve as a variable hydraulic pump, pumping oil from an oil tank (14) to charge the hydraulic accumulator (10), providing braking torque for the blade shaft (2) in an auxiliary mode, reducing the rotating speed of the blade shaft (2) until the angular acceleration sensor (6) detects that the angular acceleration of the blade shaft (2) is zero, and stopping the variable hydraulic pump/motor (12) from working;
when the wind speed rises, the angular acceleration sensor (6) detects that the angular acceleration of the blade shaft (2) is positive, the variable hydraulic pump/motor (12) is controlled to be used as the variable hydraulic motor, the hydraulic accumulator (10) releases energy and returns the energy to the oil tank (14) through the variable hydraulic pump/motor (12), then the variable hydraulic pump/motor (12) is driven to assist and provide driving torque for the blade shaft (2), the rotating speed of the blade shaft (2) rises until the angular acceleration sensor (6) detects that the angular acceleration of the blade shaft (2) is zero, and then the variable hydraulic pump/motor (12) stops working.
8. The hydraulic hybrid control method of a wind power generator according to claim 7, characterized in that: the real-time working displacement of the variable hydraulic pump/motor (12) is adjusted in real time by the angular acceleration detected by the angular acceleration sensor (6) and the energy level of the hydraulic accumulator (10).
9. The hydraulic hybrid control method of a wind power generator according to claim 7, characterized in that: the maximum displacement of the variable displacement hydraulic pump/motor (12) is selected according to the requirement setting, and a single variable displacement hydraulic pump/motor or a mode of connecting a plurality of variable displacement hydraulic pump/motors in parallel is adopted.
10. The hydraulic hybrid control method of a wind power generator according to claim 7, characterized in that: the braking torque and the driving torque generated by the variable hydraulic pump/motor (12) are amplified by the gear set (8) and then transmitted to the blade shaft (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210031465.8A CN114526197A (en) | 2022-01-12 | 2022-01-12 | Hydraulic hybrid power control system and control method of wind driven generator |
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| CN202210031465.8A CN114526197A (en) | 2022-01-12 | 2022-01-12 | Hydraulic hybrid power control system and control method of wind driven generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117072378A (en) * | 2023-08-28 | 2023-11-17 | 杭州辚萧科技有限公司 | Energy-storage wind power generation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277252A (en) * | 2013-04-10 | 2013-09-04 | 浙江大学 | Control method of grid connected wind turbine |
| US20140054893A1 (en) * | 2011-01-30 | 2014-02-27 | Vestas Wind Systems A/S | Hydraulic transmission methods and apparatus for wind turbines |
| CN104066977A (en) * | 2011-12-20 | 2014-09-24 | 文德浮洛科技有限公司 | Power generating system and hydraulic control system |
| CN110805521A (en) * | 2019-11-08 | 2020-02-18 | 燕山大学 | Novel frequency modulation control system and control method for energy storage type hydraulic wind generating set |
| CN110985295A (en) * | 2019-12-18 | 2020-04-10 | 燕山大学 | Grid-connected rotating speed control system and method for energy storage type hydraulic wind generating set |
| CN113027687A (en) * | 2021-03-09 | 2021-06-25 | 南京工程学院 | Hydraulic wind turbine generator optimal power tracking control system and method |
-
2022
- 2022-01-12 CN CN202210031465.8A patent/CN114526197A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140054893A1 (en) * | 2011-01-30 | 2014-02-27 | Vestas Wind Systems A/S | Hydraulic transmission methods and apparatus for wind turbines |
| CN104066977A (en) * | 2011-12-20 | 2014-09-24 | 文德浮洛科技有限公司 | Power generating system and hydraulic control system |
| CN103277252A (en) * | 2013-04-10 | 2013-09-04 | 浙江大学 | Control method of grid connected wind turbine |
| CN110805521A (en) * | 2019-11-08 | 2020-02-18 | 燕山大学 | Novel frequency modulation control system and control method for energy storage type hydraulic wind generating set |
| CN110985295A (en) * | 2019-12-18 | 2020-04-10 | 燕山大学 | Grid-connected rotating speed control system and method for energy storage type hydraulic wind generating set |
| CN113027687A (en) * | 2021-03-09 | 2021-06-25 | 南京工程学院 | Hydraulic wind turbine generator optimal power tracking control system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117072378A (en) * | 2023-08-28 | 2023-11-17 | 杭州辚萧科技有限公司 | Energy-storage wind power generation device |
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