CN116582035A - An automatic control device and method suitable for utilization of high-velocity galloping energy - Google Patents

Abstract

The invention discloses an automatic control device and method suitable for utilization of high-velocity galloping energy. The rotating shaft A in the control device rotates coaxially with a variable excitation generator, a torque-rotation angle sensor, a bearing group A, a gear, and a synchronous wheel A; the bearing Group A and bearing group B are composed of two sets of bearings. Rotating shaft A and rotating shaft B are fixed on the support bracket; rotating shaft B rotates coaxially with bearing group B, synchronous wheel B, clutch and servo motor; synchronous wheel A and synchronous wheel B It is connected by a timing belt; the rack is fixedly connected with the transmission plate through the transmission rod, and is engaged with the gear; the transmission plate is also connected with the slider through the transmission rod, and the slider is limited to move up and down in the slide rail, and the slide rail is fixed on the support frame ;A number of springs are arranged between the transmission plate and the supporting frame; the vibrator is fixed by the force transmission plate and the transmission plate; , The current is transmitted to the variable excitation generator.

Description

An automatic control device and method suitable for utilization of high-velocity galloping energy

technical field

This application relates to the fields of marine new energy and ocean current power generation, fluid mechanics, control science, etc., and is an automatic control device and method that can realize the utilization of high-velocity galloping energy.

Background technique

Ocean current energy is widely distributed and has large reserves. According to statistics, the world's exploitable ocean current energy exceeds 6×10 ⁶ MW. With the development of the global economy and the adjustment of the energy structure, ocean current energy is bound to become one of the important trends in the development of renewable energy in the future. Recently, with the development of marine engineering technology, a new concept of power generation by means of flow-induced vibration has been proposed. It uses fluid to induce vibration of a column, and then uses vibration power generation equipment to absorb energy. The vibration forms of energy conversion include vortex-induced vibration, galloping Zhen and so on. Flow-induced vibration power generation technology has the advantages of low start-up flow rate, large energy utilization potential, low technical cost, no impact on navigation, no occupation of cultivated land, and environmental friendliness. In the future, flow-induced vibration power generation technology will have a good application prospect.

Flow-induced vibration has huge energy and usually causes damage to long and thin structures. Therefore, early research focused on how to suppress vibration. The research goal of flow-induced vibration power generation is just the opposite, its purpose is to enhance vibration to obtain higher energy. For this reason, many scholars have studied the characteristics of non-circular section oscillators such as passive turbulent cylinders and prisms, in order to obtain more energy. It was found that the power generation capacity of the vibrator with non-circular cross-section is higher than that of the cylinder, but there is a differential transformation from vortex-induced vibration to galloping, that is, soft galloping and hard galloping. When hard galloping occurs, the vibrator cannot be self-excited by vortex-induced vibration into galloping, and can only be forced into galloping by external force (such as large displacement push) (as shown in Figure 1), resulting in limited utilization of galloping energy .

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, aiming at the high-velocity hard galloping phenomenon of non-circular section oscillators, to provide an automatic control device and method that can stimulate galloping and galloping energy utilization, and realize hard galloping Excitement and energy utilization of galloping under certain conditions, and provide control functions such as energy output regulation and shutdown.

The purpose of the present invention is achieved by the following technical solutions:

An automatic control device suitable for the utilization of galloping energy at high flow rates, including a variable excitation generator, a torque-rotation angle sensor, a rotating shaft A, a rotating shaft B, a bearing group A, a bearing group B, a support bracket, a gear, a rack, and a synchronous Wheel A, synchronous wheel B, synchronous belt, clutch, servo motor, external adjustable excitation power supply, PLC controller, flow rate sensor, electrical equipment, communication line, separate excitation power line, power output line, vibrator, force transmission plate, Transmission plate, transmission rod;

The rotating shaft A rotates coaxially with the variable excitation generator, torque-angle sensor, bearing group A, gears, and synchronous wheel A; the bearing group A is composed of two sets of bearings, and the rotating shaft A is fixed on the supporting bracket; the rotating shaft B It rotates coaxially with bearing group B, synchronous wheel B, clutch and servo motor; bearing group B is composed of two sets of bearings, and the rotating shaft B is fixed on the supporting bracket; the synchronous wheel A and synchronous wheel B are connected by a synchronous belt , so that the synchronous wheel A and the synchronous wheel B can move synchronously, and drive the rotating shaft A and the rotating shaft B to rotate synchronously;

The rack is fixedly connected with the transmission plate through the transmission rod, and is engaged with the gear; the transmission plate is also connected with the slider through the transmission rod, and the slider is limited to move up and down in the slide rail, and the slide rail is fixed on the support frame; Several springs are arranged between the transmission plate and the support frame to provide restoring force for the vibrator to vibrate up and down; the vibrator is fixed to the transmission plate through the force transmission plate; when the incoming flow passes through the vibrator, the vibrator drives the force transmission plate to move up and down, and the force transmission plate drives The transmission plate moves up and down; the transmission plate drives the rack to move up and down; the rack drives the rotating shaft A and rotating shaft B to reciprocate and rotate, and finally drives the variable excitation generator to rotate and generate electricity;

The variable excitation generator transmits the converted electric energy to the electrical equipment through the electric energy output line; the external adjustable excitation power supply transmits the excitation voltage and current to the variable excitation generator through the separate excitation power line; the torque-rotation angle sensor transmits the torque to the variable excitation generator through the communication line The rotation angle signal is transmitted to the PLC controller; the flow velocity sensor transmits the incoming flow velocity signal to the PLC controller through the communication line; the electrical equipment transmits the energy conversion signal to the PLC controller through the communication line; the PLC controller transmits the clutch execution signal through the communication line Transmission to the clutch; the PLC controller transmits the execution signal of the servo motor to the servo motor through the communication line; the PLC controller transmits the execution signal of the external adjustable excitation power supply to the external adjustable excitation power supply through the communication line.

Further, it includes a communication line for transmitting torque and rotation angle signals, a communication line for transmitting flow rate signals, a communication line for transmitting electric energy conversion signals, a communication line for transmitting clutch execution signals, and a communication line for transmitting servo motor signals. The communication line for the execution signal, the communication line for transmitting the execution signal of the external adjustable excitation power supply.

The present invention also provides an automatic control method suitable for galloping energy utilization at high flow rates, including:

(1) When the incoming flow velocity is high and the vibrator is in a galloping state, the control method at this time is as follows:

The flow rate signal, electric energy conversion signal, and torque-rotation angle signal are transmitted to the PLC controller. After calculation, it is determined: the clutch is disconnected, the servo motor does not move, and the external adjustable excitation power supply maintains the excitation voltage and current;

The above signals are respectively transmitted to the clutch, servo motor, and external adjustable excitation power supply for operation;

(2) When the incoming flow velocity fluctuates, the vibration of the vibrator is suppressed, the vibration amplitude of the vibrator decreases, and the vibrator cannot gallop. At this time, the control method is as follows:

The flow rate signal, electric energy conversion signal, and torque-rotation angle signal are transmitted to the PLC controller. After calculation, it is determined: the clutch is disconnected, the servo motor does not move, and the excitation voltage and current of the external adjustable excitation power supply are adjusted to zero; the above signals are respectively transmitted to the clutch. , servo motor, and external adjustable excitation power supply to perform operations;

If the vibrator then gradually gallops, the flow velocity signal, electric energy conversion signal, and torque-rotation angle signal are transmitted to the PLC controller. After calculation, it is determined that the clutch is disconnected, the servo motor does not operate, and the external adjustable excitation power supply gradually increases the excitation voltage. , the current reaches the target value; the above signals are respectively transmitted to the clutch, servo motor, and external adjustable excitation power supply to perform operations;

As the operation is performed, the output power gradually increases and finally maintains a stable energy output;

If the vibrator still does not appear galloping, the flow rate signal, electric energy conversion signal, and torque-rotation angle signal are transmitted to the PLC controller. After calculation, it is determined: first the clutch is connected, then the servo motor provides an initial amplitude for the vibrator, and then the clutch is suddenly disconnected , while the excitation voltage and current of the external adjustable excitation power supply are maintained at zero; the above signals are respectively transmitted to the clutch, the servo motor, and the external adjustable excitation power supply for operation;

The vibrator is released suddenly, and the amplitude appears, galloping occurs; at this time, the flow rate signal, electric energy conversion signal, torque-rotation angle signal are transmitted to the PLC controller, and after calculation, it is determined: the clutch is disconnected, the servo motor does not move, and the external connection is adjustable The excitation power supply gradually increases the excitation voltage and current to the target value; the above signals are respectively transmitted to the clutch, servo motor, and external adjustable excitation power supply for operation;

As the operation is performed, the output power gradually increases and finally maintains a stable energy output;

(3) When the incoming flow velocity increases or decreases steadily, the vibration of the vibrator increases or decreases accordingly, and the energy utilization effect changes. At this time, the control method is as follows:

The flow rate signal, electric energy conversion signal, and torque-rotation angle signal are transmitted to the PLC controller. After calculation, it is determined: the clutch is disconnected, the servo motor does not move, and the external adjustable excitation power supply increases or decreases the excitation voltage and current accordingly; the above The signals are respectively transmitted to the clutch, servo motor, and external adjustable excitation power supply to perform operations;

As the operation is performed, the output power increases or decreases and gradually maintains stability;

If during the adjustment process, the amplitude, power and flow rate do not reach the target, perform the operation in the step;

(4) If emergency shutdown is required, the control method is as follows:

According to the stop request, the PLC controller determines after calculation: the clutch is connected, the servo motor provides resistance for the vibrator to force it to stop vibrating, and the external adjustable excitation power supply adjusts the excitation voltage and current to zero; the above signals are respectively transmitted to the clutch, servo motor, The external adjustable excitation power supply performs the operation; as the operation is performed, the vibration of the vibrator stops, the output energy is zero, and the shutdown is completed.

Compared with the prior art, the beneficial effects brought by the technical solution of the present invention are:

The automatic control device and method provided by the present invention realize the energy output, adjustment and control of flow-induced vibration equipment under high-velocity hard galloping conditions, increase the applicable environment of flow-induced vibration power generation equipment, and have good application prospects. First of all, the variable excitation generator, external adjustable excitation power supply and PLC controller can realize the adjustment of the internal excitation of the variable excitation generator, and can flexibly adjust the excitation size, and then realize the adjustment of the system damping and output energy at the same time. Secondly, the use of clutches, servo motors and PLC controllers can provide the system with an initial large displacement, and then realize the external excitation of galloping, and realize the effective use of galloping energy. Thirdly, all kinds of sensors and communication cables cooperate with the PLC controller to realize fast transmission and calculation of signals, and quickly output execution signals to achieve control effects. Thirdly, the above-mentioned equipment provides the possibility of controlling the shutdown of the flow-induced vibration power generation equipment and ensures the safety of the device; in addition, the above-mentioned equipment has simple components, is easy to implement, and has good economic efficiency.

Description of drawings

Figure 1 is the hard galloping response law;

Fig. 2 is the structural representation of automatic control device of the present invention;

FIG. 3 is an enlarged structural schematic diagram of part A in FIG. 2 .

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 2 and Figure 3, this embodiment provides an automatic control device suitable for high-velocity galloping energy utilization, which consists of a variable excitation generator 1, a torque-rotation angle sensor 2, a rotating shaft A3A, a rotating shaft B3B, and a bearing group A4A , bearing group B4B, support bracket 5, gear 6, rack 7, synchronous wheel A8A, synchronous wheel B8B, synchronous belt 9, clutch 10, servo motor 11, external adjustable excitation power supply 12, PLC controller 13, flow sensor 14. Electrical equipment 15, communication line 16A, communication line 16B, communication line 16C, communication line 16D, communication line 16E, communication line 16F, separate excitation power line 17, electric energy output line 18, vibrator 19, force transmission plate 20, Transmission plate 21, transmission rod 22 form.

The connection method of each device is as follows: the rotating shaft A3A rotates coaxially with the variable excitation generator, torque-angle sensor 2, bearing group A4A, gear 6, and synchronous wheel A8A; the bearing group A4A is composed of two sets of bearings, and the rotating shaft A3A is fixed on On the support bracket 5; the rotating shaft B3B rotates coaxially with the bearing group B4B, synchronous wheel B8B, clutch 10, and servo motor 11; the bearing group B4B is composed of two sets of bearings, and the rotating shaft B3B is fixed on the supporting bracket 5; the synchronous wheel A8A It is connected with the synchronous wheel B8B through the synchronous belt 9, so that the synchronous wheel A8A and the synchronous wheel B8B move synchronously, and drive the rotating shaft A3A and the rotating shaft B3B to rotate synchronously.

The rack 7 is fixedly connected with the transmission plate 21 through the transmission rod 22, and engages with the gear 6; Fixed on the support frame 25; a plurality of springs 26 are arranged between the transmission plate 21 and the support frame 25 to provide restoring force for the vibrator 19 to vibrate up and down; the vibrator 19 is fixed by the force transmission plate 20 and the transmission plate 21; when the incoming flow 27 passes When the vibrator is 19, the vibrator 19 drives the force transmission plate 20 to move up and down, the force transmission plate 20 drives the transmission plate 21 to move up and down; the transmission plate 21 drives the rack 7 to move up and down; the rack 7 drives the rotating shaft A3A and the rotating shaft B3B to reciprocate and rotate, and finally Drive the variable excitation generator 1 to rotate and generate electricity.

The power output and electric control connection are as follows: variable excitation generator 1 transmits the transformed electric energy to electrical equipment 15 through power output line 18; externally connected adjustable excitation power supply 12 transmits excitation voltage and current to variable excitation power supply through separate excitation power line 17 The generator 1; the torque-angle sensor 2 transmits the torque and angle signals to the PLC controller 13 through the communication line 16A; the flow rate sensor 14 transmits the current 27 flow rate signal to the PLC controller 13 through the communication line 16B; The line 16C transmits the energy conversion signal to the PLC controller 13; the PLC controller 13 transmits the clutch execution signal to the clutch 10 through the communication line 16D; the PLC controller 13 transmits the servo motor execution signal to the servo motor 11 through the communication line 16E; The controller 13 transmits the execution signal of the external adjustable excitation power supply to the external adjustable excitation power supply 12 through the communication line 16F.

Specifically, in this embodiment: the vibrator 19 is a regular triangular prism with a side length of 10 cm and a length of 1 m perpendicular to the water flow direction, and the material is plexiglass; the force transmission plate 20 is an aluminum plate with a thickness of 1 cm; the transmission plate is an aluminum plate with a thickness of 1 cm ; four sliders 24 are used to jointly limit the vibration displacement; the support frame 25 is a steel structure; the maximum power of the variable excitation generator 1 is 150W, and the external adjustable excitation power supply 12 outputs a regulated DC voltage range of 0 to 200V; the measurement of the flow rate sensor 14 Range 0～3m/s; Clutch 10; Servo motor 11; Voltage range The maximum power output of the above-mentioned facilities is 100W.

Specifically, the control method of the above-mentioned automatic control device suitable for high-velocity galloping energy utilization is as follows:

(1) When the flow rate of incoming flow 27 is relatively high, and the vibrator 19 is in a state of large-amplitude galloping, the externally connected adjustable excitation power supply 12 transmits a large excitation voltage/current to the variable excitation generator 1, and the variable excitation generator 1 transmits to the The electrical energy of the electrical equipment 15 is relatively high, and the energy utilization is good. At this time, the control method is as follows:

The flow rate signal, electric energy conversion signal, and torque/rotation angle signal are transmitted to the PLC controller 13, and after calculation, it is determined that the clutch 10 is disconnected, the servo motor 11 does not operate, and the external adjustable excitation power supply 12 maintains the excitation voltage/current;

The above signals are respectively transmitted to the clutch 10, the servo motor 11, and the external adjustable excitation power supply 12 for operation.

(2) When the flow velocity of the incoming flow 27 fluctuates (suddenly decreases or increases suddenly, or suddenly increases and decreases) but still maintains a large flow velocity, the vibration of the vibrator 19 is suppressed, and the vibration amplitude of the vibrator 19 decreases. At this time, the external The excitation voltage/current transmitted by the adjustable excitation power supply 12 to the variable excitation generator 1 is still relatively large, the vibrator 19 cannot gallop, and the energy utilization effect becomes poor. At this time, the control method is as follows: flow rate signal, electric energy conversion signal, torque/rotation angle The signal is transmitted to the PLC controller 13, and it is determined after the calculation: the clutch 10 is disconnected, the servo motor 11 does not move, and the excitation voltage/current of the external adjustable excitation power supply 12 is adjusted to zero; the above-mentioned signals are respectively transmitted to the clutch 10, the servo motor 11, The external adjustable excitation power supply 12 performs the operation.

If the vibrator 19 subsequently gallops gradually, the flow velocity signal, electric energy conversion signal, and torque/rotation angle signal are transmitted to the PLC controller 13. After calculation, it is determined that the clutch 10 is disconnected, the servo motor 11 does not operate, and an external adjustable excitation power supply 12 is connected. Gradually increase the excitation voltage/current to the target value; the above signals are respectively transmitted to the clutch 10, the servo motor 11, and the external adjustable excitation power supply 12 to perform operations;

As the operation is performed, the output power gradually increases and eventually maintains a stable high energy output;

If the vibrator 19 does not appear galloping afterwards, the flow velocity signal, the electric energy conversion signal, and the torque/rotation angle signal are transmitted to the PLC controller 13. After solving, it is determined that the clutch 10 is connected first, and then the servo motor 11 provides an initial large amplitude for the vibrator 19. , and then the clutch 10 is suddenly disconnected, while the excitation voltage/current of the external adjustable excitation power supply 12 is maintained at zero; the above signals are respectively transmitted to the clutch 10, the servo motor 11, and the external adjustable excitation power supply 12 to perform operations.

The vibrator 19 is released suddenly, with a large amplitude, galloping; at this time, the flow velocity signal, the electric energy conversion signal, and the torque/rotation angle signal are transmitted to the PLC controller 13. After solving, it is determined that the clutch 10 is disconnected and the servo motor 11 is not Action, the external adjustable excitation power supply 12 gradually increases the excitation voltage/current to the target value; the above signals are respectively transmitted to the clutch 10, the servo motor 11, and the external adjustable excitation power supply 12 to perform operations.

As the operation is performed, the output power gradually increases and eventually maintains a stable high energy output;

(3) When the flow rate of the incoming flow 27 increases or decreases steadily, the vibration of the vibrator 19 increases or decreases accordingly, and the energy utilization effect changes. At this time, the control method is as follows:

The flow rate signal, electric energy conversion signal, and torque/rotation angle signal are transmitted to the PLC controller 13. After calculation, it is determined that the clutch 10 is disconnected, the servo motor 11 does not operate, and the external adjustable excitation power supply 12 increases the excitation voltage/current accordingly or decrease; the above signals are respectively transmitted to the clutch 10, the servo motor 11, and the external adjustable excitation power supply 12 to perform operations;

As the operation is performed, the output power increases or decreases and gradually maintains stability;

If during the adjustment process, the amplitude, power and flow rate do not reach the target, perform the operation in step (2);

(4) If there is an emergency and the machine needs to be shut down, the control method is as follows:

According to the shutdown requirement, the PLC controller 13 determines after calculation: the clutch 10 is connected, the servo motor 11 provides resistance to the vibrator 19 to force it to stop vibrating, and the external adjustable excitation power supply 12 adjusts the excitation voltage/current to zero; the above signals are respectively transmitted to Clutch 10, servo motor 11, external adjustable excitation power supply 12 perform operations;

As the operation is performed, the vibrator 19 stops vibrating, the output energy is zero, and the shutdown is completed.

The present invention is not limited to the embodiments described above. The above description of the specific embodiments is intended to describe and illustrate the technical solution of the present invention, and the above specific embodiments are only illustrative and not restrictive. Without departing from the gist of the present invention and the scope of protection of the claims, those skilled in the art can also make many specific changes under the inspiration of the present invention, and these all belong to the protection scope of the present invention.

Claims (3)

1. An automatic control device suitable for high-velocity galloping energy utilization, characterized in that it comprises a variable excitation generator (1), a torque-angle sensor (2), a rotating shaft A (3A), a rotating shaft B (3B), Bearing group A (4A), bearing group B (4B), support bracket (5), gear (6), rack (7), synchronous wheel A (8A), synchronous wheel B (8B), synchronous belt (9 ), clutch (10), servo motor (11), external adjustable excitation power supply (12), PLC controller (13), flow rate sensor (14), electrical equipment (15), communication line, separate excitation power line ( 17), electric energy output line (18), vibrator (19), force transmission plate (20), transmission plate (21), transmission rod (22); The rotating shaft A (3A) rotates coaxially with the variable excitation generator (1), the torque-angle sensor (2), the bearing group A (4A), the gear (6), and the synchronous wheel A (8A); the bearing group A ( 4A) consists of two sets of bearings, the rotating shaft A (3A) is fixed on the supporting bracket (5); the rotating shaft B (3B) and bearing group B (4B), synchronous wheel B (8B), clutch 10, servo motor (11) Coaxial rotation; bearing group B (4B) is composed of two sets of bearings, and the rotating shaft B (3B) is fixed on the supporting bracket (5); the synchronous wheel A (8A) and the synchronous wheel B (8B ) is connected by a synchronous belt (9), so that the synchronous wheel A (8A) and the synchronous wheel B (8B) can move synchronously, and drive the rotating shaft A (3A) and the rotating shaft B (3B) to rotate synchronously; The rack (7) is fixedly connected with the transmission plate (21) through the transmission rod (22), and is engaged with the gear (6); the transmission plate (21) is also connected with the slider (24) through the transmission rod (22), The slide block (24) is limited to move up and down in the slide rail (23), and the slide rail (23) is fixed on the support frame (25); The spring (26) provides restoring force for the vibrator (19) to vibrate up and down; the vibrator (19) is fixed with the transmission plate (21) through the force transmission plate (20); when the incoming flow (27) passes through the vibrator (19), the vibrator ( 19) Drive the force transmission plate (20) to move up and down, the force transmission plate (20) drives the transmission plate (21) to move up and down; the transmission plate (21) drives the rack (7) to move up and down; the tooth rack (7) drives the rotating shaft A ( 3A) reciprocatingly rotates with the rotating shaft B (3B), and finally drives the variable excitation generator (1) to rotate and generate electricity; The variable excitation generator (1) transmits the converted electric energy to the electrical equipment (15) through the electric energy output line (18); the externally connected adjustable excitation power supply (12) transmits the excitation voltage and current through the separately excited power line (17) To the variable excitation generator (1); the torque-rotation angle sensor (2) transmits the torque and rotation angle signals to the PLC controller (13) through the communication line; the flow rate sensor (14) transmits the current (27) flow rate signal to the The PLC controller (13); the electrical equipment (15) transmits the energy conversion signal to the PLC controller (13) through the communication line; the PLC controller (13) transmits the clutch execution signal to the clutch (10) through the communication line; the PLC The controller (13) transmits the execution signal of the servo motor to the servo motor (11) through the communication line; the PLC controller (13) transmits the execution signal of the external adjustable excitation power supply to the external adjustable excitation power supply (12) through the communication line. 2. According to claim 1, an automatic control device suitable for utilization of high-velocity galloping energy, characterized in that, said communication line for transmitting torque and rotation angle signals, and a communication line for transmitting flow-velocity signals are used. Communication lines for transmitting electrical energy conversion signals, communication lines for transmitting clutch execution signals, communication lines for transmitting servo motor execution signals, and communication lines for transmitting external adjustable excitation power supply execution signals. 3. An automatic control method applicable to the utilization of high-velocity galloping energy, based on the automatic control device applicable to the utilization of high-velocity galloping energy according to any one of claims 1-2, characterized in that it comprises: (1) When the incoming flow (27) has a high velocity and the vibrator (19) is in a galloping state, the control method is as follows: The flow velocity signal, electric energy conversion signal, and torque-rotation angle signal are transmitted to the PLC controller (13), and determined after calculation: the clutch (10) is disconnected, the servo motor (11) does not operate, and the external adjustable excitation power supply (12) maintains the excitation Voltage and current; The above-mentioned signals are respectively transmitted to the clutch (10), the servo motor (11), and the external adjustable excitation power supply (12) to perform operations; (2) When the flow velocity of the incoming stream (27) fluctuates, the vibration of the vibrator (19) is suppressed, the vibration amplitude of the vibrator (19) decreases, and the vibrator (19) cannot gallop. At this time, the control method is as follows: The flow rate signal, electric energy conversion signal, and torque-rotation angle signal are transmitted to the PLC controller (13), and after calculation, it is determined that the clutch (10) is disconnected, the servo motor (11) does not operate, and the excitation voltage of the externally adjustable excitation power supply (12) , the current is adjusted to zero; the above signals are respectively transmitted to the clutch (10), the servo motor (11), and the external adjustable excitation power supply (12) to perform operations; If the vibrator (19) then gallops gradually, the flow velocity signal, the electric energy conversion signal, and the torque-rotation angle signal are transmitted to the PLC controller (13). Action, the external adjustable excitation power supply (12) gradually increases the excitation voltage and current to the target value; the above signals are respectively transmitted to the clutch (10), the servo motor (11), and the external adjustable excitation power supply (12) to perform operations; As the operation is performed, the output power gradually increases and finally maintains a stable energy output; If the vibrator (19) still does not appear galloping afterwards, the flow velocity signal, the electric energy conversion signal, and the torque-rotation angle signal are transmitted to the PLC controller (13), and it is determined after solving: first the clutch (10) is connected, and then the servo motor (11) Provide an initial amplitude for the vibrator (19), then the clutch (10) is suddenly disconnected, and at the same time, the excitation voltage and current of the external adjustable excitation power supply (12) are maintained at zero; the above signals are respectively transmitted to the clutch (10), the servo motor (11 ), an external adjustable excitation power supply (12) performs operations; The vibrator (19) is released suddenly, and the amplitude appears, galloping occurs; at this time, the flow velocity signal, the electric energy conversion signal, and the torque-rotation angle signal are transmitted to the PLC controller (13), and it is determined after the calculation: the clutch (10) is disconnected , the servo motor (11) does not act, and the external adjustable excitation power supply (12) gradually increases the excitation voltage and current to the target value; the above signals are respectively transmitted to the clutch (10), the servo motor (11), the external adjustable excitation power supply ( 12) Execute operations; As the operation is performed, the output power gradually increases and finally maintains a stable energy output; (3) When the velocity of the incoming flow (27) increases or decreases steadily, the vibration of the vibrator (19) increases or decreases accordingly, and the energy utilization effect changes. At this time, the control method is as follows: The flow velocity signal, electric energy conversion signal, and torque-rotation angle signal are transmitted to the PLC controller (13), and it is determined after the calculation: the clutch (10) is disconnected, the servo motor (11) does not act, and the external adjustable excitation power supply (12) will excite The voltage and current increase or decrease accordingly; the above signals are respectively transmitted to the clutch (10), the servo motor (11), and the external adjustable excitation power supply (12) to perform operations; As the operation is performed, the output power increases or decreases and gradually maintains stability; If during the adjustment process, the amplitude, power and flow rate do not reach the target, perform the operation in step (2); (4) If emergency shutdown is required, the control method is as follows: According to the shutdown requirement, the PLC controller (13) determines after the calculation: the clutch (10) is connected, the servo motor (11) provides resistance to the vibrator (19) to force it to stop vibrating, and the external adjustable excitation power supply (12) controls the excitation voltage, The current is adjusted to zero; The above-mentioned signals are respectively transmitted to the clutch (10), the servo motor (11), and the external adjustable excitation power supply (12) for operation; as the operation is performed, the vibration of the vibrator (19) stops, the output energy is zero, and the shutdown is completed.