CN114109698B - Active-passive balance type floating water turbine experimental device and active balance control method thereof - Google Patents
Active-passive balance type floating water turbine experimental device and active balance control method thereof Download PDFInfo
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- CN114109698B CN114109698B CN202111292712.1A CN202111292712A CN114109698B CN 114109698 B CN114109698 B CN 114109698B CN 202111292712 A CN202111292712 A CN 202111292712A CN 114109698 B CN114109698 B CN 114109698B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims description 25
- 239000003638 chemical reducing agent Substances 0.000 claims description 19
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- 239000003245 coal Substances 0.000 description 1
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Classifications
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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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/008—Measuring or testing arrangements
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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
- Y02E10/20—Hydro energy
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses an active-passive balance type floating water turbine experimental device which comprises an experimental frame, a buoyancy cabin arranged at the upper end of the experimental frame, a water turbine and a balancing weight, wherein the water turbine is hinged with the experimental frame through a first connecting rod, the first driving device drives the first connecting rod to swing forwards relative to the experimental frame, the balancing weight is hinged with the experimental frame through a second connecting rod, the second driving device drives the second connecting rod to swing backwards relative to the experimental frame, and the swinging planes of the first connecting rod and the second connecting rod are the same plane. The experimental frame is connected with the water turbine through the connecting rod, so that the center of gravity of the experimental device and the steady height between the floating centers are larger, and larger restoring moment is generated. An active balancing device is formed by using balancing weights which are symmetrically moved with the water turbine. When the hydraulic turbine swings forwards, the balancing weight swings backwards, so that the posture of the experimental device can be adjusted slightly, and the moment balance of the experimental device is ensured.
Description
Technical Field
The invention relates to a water turbine experimental device, in particular to a main and passive balance type floating water turbine experimental device and an active balance control method thereof.
Background
Energy plays an important role in the progress and development process of human society, and provides important material resources for human production and life. With the continuous progress of civilization, the global demand for resources is also increasing, however, a part of traditional energy sources such as petroleum, coal and the like are exhausted gradually under the annual and monthly consumption of human beings, and the problems of environment, climate and the like are aggravated gradually due to the combustion of fossil fuels, so that people are urgent to find clean and environment-friendly new energy sources, and the trend energy is one of the most potential new energy sources in the current world.
Scientists analyze tidal current energy performance through various experimental devices, wherein a water turbine is a rotary machine for converting ocean current energy into electric energy, and the water turbine is one of ideal devices for scientists due to the characteristics of high energy obtaining efficiency, relatively mature technology and the like. Water turbines are typically installed in large-flow-rate sea areas such as gulf mouths, waterways between islands, and the like. Because marine environment is complicated abominable, in case the trouble that the hydraulic turbine during operation appears, the maintenance needs to consume a large amount of manpower, material resources and financial resources, in order to guarantee the steady safe work of hydraulic turbine in abominable environment, carry out the model experiment of hydraulic turbine in experimental water pond and be a convenient, simple research mode.
When the water turbine is subjected to experiments, various devices for providing kinetic energy for the water turbine and collecting data of the water turbine are arranged on the experiment platform, the experiment platform is usually in a floating state when the water turbine is subjected to water flow influence for a relatively-reduced simulated water turbine, and the instability of the experiment platform in water can influence the experiment process of the water turbine.
Disclosure of Invention
The invention aims to: aiming at the defects, the invention provides an active-passive balance floating type hydraulic turbine experimental device with a stable holding device.
The invention also provides an active balance control method of the active-passive balance floating type hydraulic turbine experimental device.
The technical scheme is as follows: in order to solve the problems, the invention adopts the active-passive balance floating type hydraulic turbine experimental device, which comprises an experimental frame, a buoyancy cabin arranged at the upper end of the experimental frame, a hydraulic turbine and a balancing weight, wherein the hydraulic turbine and the balancing weight are connected to the lower end of the experimental frame, the hydraulic turbine is connected with the experimental frame through a first connecting rod, one end of the first connecting rod is hinged with the hydraulic turbine, the other end of the first connecting rod is connected with the experimental frame through a first driving device, the first driving device drives the first connecting rod to swing forwards relative to the experimental frame, the balancing weight is connected with the experimental frame through a second connecting rod, one end of the second connecting rod is hinged with the balancing weight, the other end of the second connecting rod is connected with the experimental frame through a second driving device, the second driving device drives the second connecting rod to swing backwards relative to the experimental frame, and the swinging planes of the first connecting rod and the second connecting rod are the same plane.
Further, the swing centers of the first connecting rod and the second connecting rod are located at the same height, and the lengths of the first connecting rod and the second connecting rod are the same.
Further, the first driving device comprises a first driving motor, a first worm gear reducer connected with an output shaft of the first driving motor, and a first driving gear connected with an output shaft of the first worm gear reducer, wherein a first driven gear is fixedly arranged on the side face of the end part of the first connecting rod, the first driving gear is meshed with the first driven gear, the first driving motor drives the first driving gear to rotate through the first worm gear reducer, and the first driving gear rotates to drive the first driven gear to rotate, so that the first connecting rod is driven to swing.
Further, the second driving device comprises a second driving motor, a second worm gear reducer connected with an output shaft of the second driving motor, and a second driving gear connected with an output shaft of the second worm gear reducer, wherein a second driven gear is fixedly arranged on the side face of the end part of the second connecting rod, the second driving gear is meshed with the second driven gear, the second driving motor drives the second driving gear to rotate through the second worm gear reducer, and the second driving gear rotates to drive the second driven gear to rotate, so that the second connecting rod is driven to swing.
Further, be connected with first driven connecting rod between experimental frame and the hydraulic turbine, first driven connecting rod both ends are articulated with experimental frame and hydraulic turbine respectively, and first driven connecting rod and head rod guarantee that the hydraulic turbine motion in-process keeps the level.
Further, be connected with the driven connecting rod of second between experimental frame and the balancing weight, driven connecting rod both ends are articulated with experimental frame and balancing weight respectively, and driven connecting rod of second guarantees with the second connecting rod and keeps the level in the balancing weight motion process.
Further, four thrusters with mutually perpendicular propelling directions are arranged on the side face of the experimental frame, the four thrusters are arranged on the same horizontal plane, two thrusters with perpendicular propelling directions are further arranged on the side face of the experimental frame, and the two thrusters are symmetrically arranged on two sides of the experimental frame.
Further, the experiment frame bottom bilateral symmetry is provided with electric power cabin and electronic cabin, and electric power cabin inside sets up the power module for whole experimental apparatus power supply, the inside control module that controls whole experimental apparatus that sets up of electronic cabin.
The invention also adopts an active balance control method of the active and passive balance floating type hydraulic turbine experimental device, which is characterized by comprising the following steps:
s1: setting the extending direction of the first connecting rod and the extending direction of the second connecting rod to be vertical upwards to be an initial position, determining the depth of the water turbine entering the water surface according to experimental requirements, and adjusting the buoyancy of the buoyancy cabin to enable the water turbine to be located at a target depth H 0 ；
S2: selecting the experimental depth H of the water turbine n Controlling the forward swing angle theta of the first connecting rod; when H is n At > H, H n =lcosθ+h; when H is n When < H, H n H-lsinθ, wherein L is the length of the first connecting rod, and h is the distance from the swing center of the first connecting rod to the water surface;
s3: controlling the backward swing angle alpha of the second connecting rod, wherein the calculation formula is m 1 gLsinθ＝m 2 gLsin alpha, where m 1 Is the integral mass of the water turbine, m 2 The weight is the whole weight of the balancing weight;
s4: carrying out experiments on the water turbine, and recording and storing data;
s5: and returning to the step S2, changing the experimental depth of the water turbine, and carrying out multiple experiments.
The beneficial effects are that: compared with the prior art, the buoyancy cabin, the experimental frame and the components arranged in the experimental frame have the remarkable advantages that the active balance of gravity and buoyancy of the experimental device is tested, the experimental frame is connected with the water turbine through the connecting rod, so that the center of gravity and the center of stability between the centers of buoyancy of the experimental device are high, and a large restoring moment is generated, and the experimental device can quickly restore the balance when being disturbed by waves and turbulence.
An active balancing device is formed by using balancing weights which are symmetrically moved with the water turbine. When the hydraulic turbine swings forwards, the balancing weight swings backwards, so that the posture of the experimental device can be adjusted slightly, and the moment balance of the experimental device is ensured.
The rotation of the motor is utilized to drive the output shaft of the worm gear reducer to rotate, the gear connected with the output shaft of the worm gear reducer is driven to rotate, the connecting rod meshed with the gear is driven to swing, the hydraulic turbine is driven to swing upwards, the immersed depth of the blade tip of the hydraulic turbine is changed, the depth adjustment of the hydraulic turbine can be realized on the premise of keeping the moment balance of the experimental device only by controlling the rotation angles of the two generators, and the fluctuation amplitude of the energy utilization rate and the axial load coefficient in the experimental device experimental process is reduced.
Drawings
FIG. 1 is a schematic diagram showing the overall structure of an experimental device of the invention;
FIG. 2 is a front view of the experimental set-up of the invention;
FIG. 3 is a cross-sectional view of a first drive device according to the present invention;
FIG. 4 is a schematic diagram showing the engagement of the motor, worm gear and two gears of the first driving device of the present invention;
FIG. 5 is a top view of the first drive motor, worm gear and gear engagement of the present invention;
FIG. 6 is a cross-sectional view showing the connection of the first driven connecting rod to the turbine and the experimental frame in the present invention;
FIG. 7 is a cross-sectional view of a second drive device according to the present invention;
FIG. 8 is a diagram showing the relationship between the motor, worm gear and two gears of the second driving device of the present invention;
FIG. 9 is a top view of the second drive motor, worm gear and gear engagement of the present invention;
FIG. 10 is a cross-sectional view showing the connection of the second driven connecting rod to the turbine and the experimental frame in the present invention;
FIG. 11 is a top view of the experimental framework of the present invention;
fig. 12 is a schematic diagram of active balance control of the experimental apparatus according to the present invention.
Detailed Description
Example 1
As shown in fig. 1 and 2, an active-passive balance floating hydraulic turbine experimental device in this embodiment includes an experimental frame 12, a buoyancy chamber 1 disposed at the upper end of the experimental frame 12, and an electric chamber 10 and an electronic chamber 11 disposed at two sides of the bottom of the experimental frame 12, wherein the main gravity of the experimental frame 12 is concentrated at the lower side of the experimental frame 12, and the buoyancy chamber 1 is located at the top of the experimental frame 12, so that the distance between the center of gravity and the floating center of the experimental device is larger, thereby generating a larger restoring moment, and realizing passive balance. The power module for supplying power to the whole experimental device is arranged in the power cabin 10, the control module for controlling the whole experimental device is arranged in the electronic cabin 11, and the power cabin 10 and the electronic cabin 11 are symmetrically distributed on the experimental frame, so that the balance of the experimental device is facilitated. The experimental frame 12 side sets up four propulsion direction mutually perpendicular's propeller (4, 5, 6, 7), and four propellers (4, 5, 6, 7) set up in same horizontal plane, four propellers (4, 5, 6, 7) are used for driving advancing, backing and turning to of experimental apparatus, experimental frame 12 side still is provided with two propulsion direction vertical horizontal plane's propeller (8, 9), two propellers (8, 9) symmetry set up in experimental frame 12 both sides, propeller 8 and propeller 9 are used for driving experimental apparatus and rise and dive.
As shown in FIG. 3, one end of the first connecting rod 22 is connected with the experimental frame 12, a bearing seat I96 is fixedly arranged on the experimental frame 12, a bearing I13 is arranged in the bearing seat I96, one end of a rotating rod I16 penetrates through the bearing I13, the other end of the rotating rod penetrates through one end of the first connecting rod 22, a bearing baffle I15 is arranged on the right side of the bearing I13, the bearing baffle I15 is connected with the rotating rod I16 through a bolt I14, a baffle I17 is arranged on the left side of the first connecting rod 22, the baffle I17 is connected with the rotating rod I16 through a bolt II 18, and the bearing baffle I15 and the baffle I17 are used for limiting the end part of the rotating rod I16. The first connecting rod 22 is positioned on the experiment frame 12 by the rotary rod I16, a gear is fixedly arranged at the top of the first connecting rod 22, the rotary rod I16 is a gear rotation axis, and the first driving device drives the gear at the top of the first connecting rod 22 to rotate around the rotary rod I16, so that the first connecting rod 22 is driven to swing relative to the experiment frame.
As shown in fig. 4, 5 and 9, the first driving device includes a first driving gear 19 engaged with the top gear of the first connecting rod 22, a first worm gear reducer 21, and a first driving motor 90. The first driving gear 19 is connected with an output shaft of the first worm gear reducer 21 through a gear connection plate I20, a motor fixing plate I94 is fixedly arranged on the experimental frame 12, the first driving motor 90 is fixed on the motor fixing plate I94, an output shaft of the first driving motor 90 is connected with the first worm gear reducer 21, and an encoder I89 is arranged at the tail of the first driving motor 90.
The other end of the first connecting rod 22 is hinged with the water turbine 95 through a rotating rod II 30, a water turbine fixing plate 48 is fixedly arranged above a water turbine 95 cabin body, a bearing seat II 26 is fixedly connected to the rear end of the water turbine fixing plate 48, a bearing II 27 is arranged in the bearing seat II 26, one end of the rotating rod II 30 penetrates through the bearing II 27, the other end of the rotating rod II penetrates through one end, close to the water turbine 95, of the first connecting rod 22, a bearing baffle II 28 is arranged on the left side of the bearing II 27, the bearing baffle II 28 is connected with the rotating rod II 30 through a bolt IV 29, a baffle II 23 is arranged on the right side of the first connecting rod 22, the baffle II 23 is connected with the rotating rod II 30 through a bolt III 24, the bearing baffle II 28 and the baffle II 23 are used for limiting the end of the rotating rod II 30, a sleeve I25 is sleeved on the rotating rod II 30, and the sleeve I25 is positioned between the first connecting rod 22 and the bearing II 27 and used for limiting the distance between the first connecting rod 22 and the bearing II 27.
As shown in fig. 6, one end of the first driven connecting rod 41 is hinged to the experimental frame 12, a bearing seat iii 49 is fixedly arranged on the experimental frame 12, a bearing iii 33 is arranged in the bearing seat iii 49, one end of a rotating rod iii 35 penetrates through the bearing iii 33, the other end penetrates through one end of the first driven connecting rod 41, a bearing baffle iii 31 is arranged on the left side of the bearing iii 33, the bearing baffle iii 31 is connected with the rotating rod iii 35 through a bolt v 32, a baffle iii 36 is arranged on the right side of the first driven connecting rod 41, the baffle iii 36 is connected with the rotating rod iii 35 through a bolt vi 37, and the bearing baffle iii 31 and the baffle iii 36 are used for limiting the end of the rotating rod iii 35. The rotary rod iii 35 is sleeved with a sleeve ii 46, and the sleeve ii 46 is located between the first driven connecting rod 41 and the bearing iii 33, so as to define the relative distance between the first driven connecting rod 41 and the bearing iii 33.
The other end of the first driven connecting rod 41 is hinged with the water turbine 95, a bearing seat IV 42 is fixedly connected to the front end of a water turbine fixing plate 48 on a water turbine 95 cabin, a bearing seat II 26 and a bearing seat IV 42 are arranged on the water turbine fixing plate 48 in a staggered mode, a bearing IV 45 is arranged in the bearing seat IV 42, one end of a rotating rod IV 40 penetrates through the bearing IV 45, the other end penetrates through one end of the first driven connecting rod 41 and is close to the water turbine, a baffle IV 38 is placed on the left side of the first driven connecting rod 41, the baffle IV 38 is connected with the rotating rod IV 40 through a bolt VII 39, a bearing baffle IV 43 is placed on the right side of the bearing IV 42, the bearing baffle IV 43 is connected with the rotating rod IV 40 through a bolt VIII 44, the baffle IV 38 and the bearing baffle IV 43 are used for limiting the end of the rotating rod IV 40, a sleeve III 47 is sleeved on the rotating rod IV 40, and the sleeve III 47 is located between the first driven connecting rod 41 and the bearing IV 45 and used for limiting the distance between the first driven connecting rod 41 and the bearing IV 45.
As shown in fig. 7, one end of the second connecting rod 68 is connected with the experimental frame 12, a bearing seat v 53 is fixedly arranged on the experimental frame 12, a bearing v 54 is placed in the bearing seat v 53, one end of a rotating rod v 55 penetrates through the bearing v 54, the other end penetrates through one end of the second connecting rod 68, a bearing baffle v 52 is placed on the left side of the bearing v 54, the bearing baffle v 52 is connected with the rotating rod v 55 through a bolt ix 51, a baffle v 56 is placed on the right side of the second connecting rod 68, the baffle v 56 is connected with the rotating rod v 55 through a bolt x 57, and the bearing baffle v 52 and the baffle v 56 are used for limiting the end of the rotating rod v 55. The second connecting rod 68 is positioned on the experimental frame by the rotating rod V55, the rotating rod V55 and the rotating rod I16 are positioned at the same height, a gear is fixedly arranged at the top of the second connecting rod 68, the rotating rod V55 is a gear rotating axis, the second driving device rotates around the rotating rod V55 by driving the gear at the top of the second connecting rod 68, so that the second connecting rod 68 is driven to swing relative to the experimental frame, and the swing centers of the first connecting rod 22 and the second connecting rod 68 are positioned at the same height.
As shown in fig. 8 to 10, the second driving means includes a second driving gear 59 engaged with the top gear of the second connection rod 68, a second worm gear reduction 58, and a second driving motor 91. The second driving gear 59 is connected with the output shaft of the second worm gear reducer 58 through a gear connection plate II 50, a motor fixing plate II 93 is fixedly arranged on the experimental frame 12, the second driving motor 91 is fixed on the motor fixing plate II 93, the output shaft of the second driving motor 91 is connected with the second worm gear reducer 58, and an encoder II 92 is arranged at the tail of the second driving motor 91.
The other end of the second connecting rod 68 is hinged with the balancing weight 67 through a rotating rod VI 70, a weight fixing plate 66 is fixedly arranged above the balancing weight 67, a bearing seat VI 62 is fixedly connected to the front end of the weight fixing plate 66, a bearing VI 63 is arranged in the bearing seat VI 62, one end of the rotating rod VI 70 penetrates through the bearing VI 63, the other end of the rotating rod VI penetrates through one end of the second connecting rod 68 close to the balancing weight, a baffle VI 69 is placed on the left side of the second connecting rod 68, the baffle VI 69 is connected with the rotating shaft VI 70 through a bolt XI 60, a bearing baffle VI 64 is placed on the right side of the bearing VI 63, the bearing baffle VI 64 is connected with the rotating shaft VI 70 through a bolt 65, and a sleeve IV 61 is placed between the second connecting rod 68 and the bearing VI 63.
As shown in FIG. 11, one end of the second driven connecting rod 83 is hinged to the experimental frame 12, a bearing seat VII 71 is fixedly arranged on the experimental frame 12, a bearing VII 75 is arranged in the bearing seat VII 71, one end of the rotating rod VII 72 penetrates through the bearing VII 71, the other end penetrates through one end of the second driven connecting rod 83, a bearing baffle VII 76 is arranged on the right side of the bearing VII 75, the bearing baffle VII 76 is connected with the rotating rod VII 72 through a bolt a77, a baffle VIII 73 is arranged on the right side of the second driven connecting rod 83, the baffle VIII 73 is connected with the rotating rod VII 72 through a bolt b74, a sleeve V86 is sleeved on the rotating rod VII 72, and the sleeve V86 is located between the second driven connecting rod 83 and the bearing VII 71.
The other end of the second driven connecting rod 83 is hinged with the balancing weight 67, a bearing seat VIII 88 is fixedly connected to the rear end of a weight fixing plate 66 on the balancing weight 67, the bearing seat VIII 88 and the bearing seat VI 62 are arranged on the weight fixing plate 66 in a staggered mode, a bearing VIII 80 is arranged in the bearing seat VIII 88, one end of a rotating rod VIII 78 penetrates through the bearing VIII 80, the other end of the rotating rod VIII penetrates through the second driven connecting rod 83, a baffle VIII 84 is placed on the right side of the second driven connecting rod 83, the baffle VIII 84 is connected with the rotating shaft VIII 78 through a bolt c85, a bearing baffle VIII 81 is placed on the left side of the bearing VIII 80, the bearing baffle VIII 81 is connected with the rotating shaft VIII 78 through a bolt d82, a sleeve VI 87 is sleeved on the rotating rod VIII 78, and the sleeve VI 87 is located between the second driven connecting rod 83 and the bearing VIII 80.
Example 2
The active balance control method of the active-passive balance floating water turbine experimental device in the above embodiment, as shown in fig. 12, includes the following steps:
s1: setting the extending direction of the first connecting rod 22 and the second connecting rod 68 to be vertical upwards as an initial position, determining the depth of the water turbine entering the water surface according to experimental requirements, and adjusting the buoyancy of the buoyancy cabin to enable the water turbine to be located at the target depth H 0 The method comprises the steps of carrying out a first treatment on the surface of the In this embodiment, in the initial state, the swing centers of the first connecting rod 22 and the second connecting rod 68 are located at the same depth, the balancing weights and the water turbine are also located at the same depth, and the length of the first connecting rod is the same as that of the second connecting rod;
s2: according to experimental conditions, the experimental depth H of the water turbine is selected n The motor I drives the first driving gear 19 to rotate so as to control the forward swing angle theta of the first connecting rod; when H is n When H is greater than 0 < θ < 90 °, H n =lcosθ+h; when H is n When the angle is smaller than H, the angle is smaller than 90 DEG and smaller than 180 DEG, H n H-lsinθ, wherein L is the length of the first connecting rod, and h is the distance from the swing center of the first connecting rod to the water surface;
s3: the second driving motor 91 drives the second driving gear 59 to rotate so as to control the backward swing angle alpha of the second connecting rod, the balancing weight swings backward and balances the swing of the water turbine, and the micro adjustment is carried out through the balancing weight, so that the active balance control of the experimental device is realized, the moment balance of the experimental device is ensured, and the calculation formula of the swing angle of the second connecting rod is m 1 gLsinθ＝m 2 gLsin alpha, where m 1 Is the integral mass of the water turbine, m 2 The weight is the whole weight of the balancing weight;
s4: the propeller is controlled to push the experimental device to perform experiments on the water turbine, and data are recorded and stored;
s5: and returning to the step S2, changing the experimental depth of the water turbine, and carrying out multiple experiments.
Claims (7)
1. The active balance control method of the active and passive balance type floating water turbine experimental device is characterized in that the experimental device comprises an experimental frame (12), a buoyancy cabin (1) arranged at the upper end of the experimental frame (12), a water turbine (95) and a balancing weight (67), wherein the water turbine (95) and the balancing weight (67) are connected to the lower end of the experimental frame (12), the water turbine (95) is connected with the experimental frame (12) through a first connecting rod (41), one end of the first connecting rod (41) is hinged with the water turbine (95), the other end of the first connecting rod (41) is connected with the experimental frame (12) through a first driving device, the first driving device drives the first connecting rod (41) to swing forwards relative to the experimental frame (12), the balancing weight (67) is connected with the experimental frame (12) through a second connecting rod (68), one end of the second connecting rod (68) is hinged with the balancing weight (67), the other end of the second connecting rod (68) is connected with the experimental frame (12) through a second driving device, the second driving device drives the second connecting rod (68) to swing backwards relative to the experimental frame (12), and the first connecting rod (41) and the second connecting rod (68) are in the same plane as the swinging plane.
The swing centers of the first connecting rod (41) and the second connecting rod (68) are positioned at the same height, and the lengths of the first connecting rod (41) and the second connecting rod (68) are the same;
the active balance control method comprises the following steps:
s1: setting the extending direction of the first connecting rod (41) and the extending direction of the second connecting rod (68) to be vertical upwards to be initial positions, determining the depth of the water turbine (95) entering the water surface according to experimental requirements, adjusting the buoyancy of the buoyancy cabin (1) to enable the water turbine (95) to be located at the target depth；
S2: selecting the experimental depth of the water turbine (95)Controlling the forward swing angle of the first connecting rod (41)>The method comprises the steps of carrying out a first treatment on the surface of the When->When (I)>The method comprises the steps of carrying out a first treatment on the surface of the When->When (I)>Wherein->For the length of the first connecting rod (41), +.>The distance from the swing center of the first connecting rod (41) to the water surface;
s3: controlling the backward swing angle of the second connecting rod (68)The calculation formula is +.>Wherein, the method comprises the steps of, wherein,is the whole mass of the water turbine (95)>The weight block (67) is the whole mass;
s4: carrying out experiments on the water turbine (95), and recording and storing data;
s5: and returning to the step S2, changing the experimental depth of the water turbine (95), and carrying out multiple experiments.
2. The driving balance control method of the driving and driven balance floating type hydraulic turbine experimental device according to claim 1, wherein the first driving device comprises a first driving motor (90), a first worm gear reducer (21) connected with an output shaft of the first driving motor (90), and a first driving gear (19) connected with an output shaft of the first worm gear reducer (21), a first driven gear is fixedly arranged on the side face of the end portion of the first connecting rod (41), the first driving gear (19) is meshed with the first driven gear, the first driving motor (90) drives the first driving gear (19) to rotate through the first worm gear reducer (21), and the first driving gear (19) rotates to drive the first driven gear to rotate, so that the first connecting rod (41) is driven to swing.
3. The driving balance control method of the driving and driven balance floating type hydraulic turbine experimental device according to claim 2, wherein the second driving device comprises a second driving motor (91), a second worm gear reducer (58) connected with an output shaft of the second driving motor (91), and a second driving gear (59) connected with an output shaft of the second worm gear reducer (58), a second driven gear is fixedly arranged on the side face of the end portion of the second connecting rod (68), the second driving gear (59) is meshed with the second driven gear, the second driving motor (91) drives the second driving gear (59) to rotate through the second worm gear reducer (58), and the second driving gear (59) is driven to rotate so as to drive the second connecting rod (68) to swing.
4. The active balance control method of the active and passive balance type floating water turbine experimental device according to claim 3, wherein a first driven connecting rod (41) is connected between the experimental frame (12) and the water turbine (95), two ends of the first driven connecting rod (41) are respectively hinged with the experimental frame (12) and the water turbine (95), and the first driven connecting rod (41) and the first connecting rod (41) ensure that the water turbine (95) keeps horizontal in the moving process.
5. The active balance control method of the active and passive balance floating hydraulic turbine experimental device according to claim 4, characterized in that a second driven connecting rod (83) is connected between the experimental frame (12) and the balancing weight (67), two ends of the second driven connecting rod (83) are respectively hinged with the experimental frame (12) and the balancing weight (67), and the second driven connecting rod (83) and the second connecting rod (68) ensure that the balancing weight (67) keeps horizontal in the moving process.
6. The active balance control method of the active and passive balance floating hydraulic turbine experimental device according to claim 5, wherein four thrusters with mutually perpendicular propelling directions are arranged on the side face of the experimental frame (12), the four thrusters are arranged on the same horizontal plane, two thrusters with perpendicular propelling directions are further arranged on the side face of the experimental frame (12), and the two thrusters are symmetrically arranged on two sides of the experimental frame (12).
7. The active balance control method of the active and passive balance floating hydraulic turbine experimental device according to claim 6, wherein an electric cabin (10) and an electronic cabin (11) are symmetrically arranged on two sides of the bottom of the experimental frame (12), a power module for supplying power to the whole experimental device is arranged inside the electric cabin (10), and a control module for controlling the whole experimental device is arranged inside the electronic cabin (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292712.1A CN114109698B (en) | 2021-11-03 | 2021-11-03 | Active-passive balance type floating water turbine experimental device and active balance control method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201005178A (en) * | 2008-07-16 | 2010-02-01 | Anadarko Petroleum Corp | Water current power generation system |
| ES2787883T3 (en) * | 2016-07-28 | 2020-10-19 | Skf Ab | Bearing module for adjusting an angle of attack of a rotor blade in a hydraulic power station with underwater flow |
| CN214464644U (en) * | 2021-03-12 | 2021-10-22 | 江苏科技大学 | Novel multi freedom wave energy electricity generation experiment platform |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201005178A (en) * | 2008-07-16 | 2010-02-01 | Anadarko Petroleum Corp | Water current power generation system |
| ES2787883T3 (en) * | 2016-07-28 | 2020-10-19 | Skf Ab | Bearing module for adjusting an angle of attack of a rotor blade in a hydraulic power station with underwater flow |
| CN214464644U (en) * | 2021-03-12 | 2021-10-22 | 江苏科技大学 | Novel multi freedom wave energy electricity generation experiment platform |
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