135 results about "Electromagnetic power" patented technology

The invention belongs to the technical field of electromagnetic induction and friction nanometer power generation, and particularly relates to a vibration energy collector based on electromagnetic induction and friction nanometer hybrid power generation. Comprising a friction nanometer power generation unit and an electromagnetic induction unit. The friction nanometer power generation unit comprises an upper insulating support plate, a lower insulating support plate and a friction pair; the friction pair comprises an upper friction assembly and a lower friction assembly, and the upper friction assembly and the lower friction assembly trigger the contact and separation process through external vibration to achieve friction electricity generation. The electromagnetic induction unit comprises a coil, a magnet and a steel body which are sequentially nested, the coil and the magnet are fixedly connected with the upper friction assembly and the lower friction assembly respectively, the steel body is fixedly connected with the lower insulation supporting plate, the magnet and the steel body form a closed magnetic circuit, and the magnet and the coil trigger relative movement through external vibration to achieve electromagnetic power generation. The device is novel in structure and distinct in gradation, integrates a triboelectrification effect and an electromagnetic induction principle, has high-voltage output and high-current characteristics, and can efficiently realize continuous conversion from environment vibration energy to electric energy.

The invention relates to a friction and electromagnetic combined type wave energy power generation device, and relates to the field of wave energy power generation devices. Comprising a cylindrical shell, a floating ball structure and a stress disc. The first end of the cylindrical shell is sealed, a fixed shaft is fixed to the inner axis and slidably sleeved with a sliding framework, and a composite power generation assembly is arranged in the cylindrical shell. When waves exist on the sea surface, due to the fact that the floating ball structure is subjected to buoyancy and thrust of the waves, the stress disc and the floating ball structure are subjected to opposite force, and the sliding framework can move relative to the fixed shaft, so that electromagnetic power generation and friction power generation are achieved. Even if the sea surface is flat and quiet, as long as the water body below the sea surface flows relatively and the flow velocity difference exists between the upper part and the lower part of the stress disc, buoyancy or sinking force can be generated, the sliding framework can move relative to the fixed shaft, and finally electromagnetic power generation and friction power generation are realized, so that the power generation efficiency is effectively improved.

The invention relates to an optimal power capturing method for a wave energy power generation device of a mixed-flow type air turbine, and belongs to the field of wave energy power generation. The optimal power capturing method comprises the steps that the change condition of the average output power of the turbine under different sea conditions along with the rotating speed is tested, and the maximum average output power point of the turbine under each sea condition is obtained; fitting the maximum average output power point under each sea condition to obtain a control law of the electromagnetic power of the motor; the quadrature-axis current reference value of the stator is made to be equal to zero, and the direct-axis current reference value of the stator is calculated; calculating a stator quadrature-direct axis current error term, and establishing a positive definite Lyapunov function; deriving the Lyapunov function, substituting the Lyapunov function into a stator quadrature-direct axis current state equation, and then performing transformation according to a first stability theorem to obtain a stator quadrature-direct axis voltage control law; and generating a corresponding SVPWM (Space Vector Pulse Width Modulation) switching signal according to a stator quadrature-axis voltage control law so as to control a motor-side converter and realize control on a turbine. The wave energy capturing efficiency can be improved.

The invention relates to the technical field of power transmission line self-energy-taking, and discloses a power transmission line self-energy-taking device and a state detection system, and the device comprises a housing structure, a motion structure, an electromagnetic power generation structure, and a friction power generation structure. Wherein the moving structure is composed of a permanent magnet, a spring and a fixing groove, the vertical shell and the fixing groove are connected through the spring, and a spring mass vibration system is constructed; the electromagnetic power generation structure generates power through relative movement of a permanent magnet and a coil. The friction power generation structure generates power through sliding separation of sliding electrodes on the side faces of the fixing grooves and electrodes in the side shells. The invention further discloses a state detection system, vibration energy is collected through the device and stored in an energy storage battery through an energy management circuit to supply power to a sensor detection circuit, and data are sent to an upper computer through a wireless transmission module. The power transmission line state real-time detection without external energy supply can be realized, and the problem of power supply of monitoring equipment in remote areas is solved.

The invention relates to a multi-degree-of-freedom composite wave energy converter, and belongs to the technical field of wave power generation. Comprising a mounting frame and a power generation assembly, and the power generation assembly comprises an electromagnetic power generation unit, a nanometer friction power generation unit and a piezoelectric power generation unit; the electromagnetic power generation unit comprises a gravity pendulum and an electromagnetic generator; the gravity pendulum is rotationally mounted on the mounting frame around the gravity center axis of the wave energy converter, and one end of the gravity pendulum is connected with a rotor of the electromagnetic generator; the nanometer friction power generation unit comprises a plurality of power generation parts made of friction materials, the power generation parts are installed on the installation frame, and under the action of external force, the power generation parts move relatively to generate electric energy; the piezoelectric power generation unit comprises a piezoelectric generator and a water flow turbine; a rotor shaft of the piezoelectric generator is connected with the water flow turbine, a rotor of the piezoelectric generator is made of piezoelectric materials, and magnets are arranged on the rotor and a stator respectively. The multi-degree-of-freedom wave capturing device can comprehensively and efficiently capture waves in multiple degrees of freedom, and is high in energy conversion efficiency and wide in application range.

The invention discloses a control method, device, equipment, medium and product of a network-forming type permanent magnet wind power system, and the method comprises the steps: calculating the maximum wind energy tracking power outputted by the network-forming type permanent magnet wind power system under the optimal wind energy tracking based on the maximum wind energy tracking coefficient; calculating a direct-current voltage damping control coefficient of a side damping controller according to the inertia coefficient and the damping coefficient of the direct-current voltage; calculating an electromagnetic power reference value output by the permanent magnet synchronous generator according to the maximum wind energy tracking power and the DC voltage damping control coefficient; and subtracting the electromagnetic power reference value from the electromagnetic power actual value, and inputting the difference value into a machine side active power controller so as to adjust the electromagnetic power output by the permanent magnet synchronous generator. According to the method, on the basis of not adding hardware equipment, the transient stability of the grid-forming type permanent magnet wind power system during the short-circuit fault period of the power grid can be remarkably improved only by changing the control strategy of the machine-side converter of the grid-forming type permanent magnet wind power system.

The invention provides a generator tripping sensitivity calculation method and system for transient stability control. The method comprises the steps that power angle trajectory data of an instability scene of a power system are combined with a composite power angle algorithm to carry out unit grouping; calculating a comprehensive difference value of the accumulated unbalanced energy and the decelerable area of the equivalent unit before and after generator tripping to form an estimated value of the unbalanced energy directly taken away by the generator tripping; calculating the electromagnetic power transfer amount of a cut unit by utilizing power flow information at the cutting moment and the network topology of the power system, and calculating the variable amount of a slowable area by combining with an equivalent unit power angle curve translation change hypothesis; finally, unbalance energy directly taken away by generator tripping and slowable area variation corresponding to power transfer are added to estimate stability margin variation, and the stability margin variation is divided by the capacity of the generator tripping unit to calculate generator tripping sensitivity. Based on the method, the invention further provides a generator tripping sensitivity calculation system for transient stability control. According to the method, an application prospect is provided for optimization decision-making of an online or real-time transient stability control generator tripping scheme.

The present invention belongs to the technical field of network-forming converters, and particularly relates to a method, system, device, and medium for determining the overcurrent capacity of network-forming converters. Aiming at the deficiencies of the existing method for calculating the current limit value corresponding to the critical clearing time of network-forming converters, which has a large amount of calculation, long time consumption, or cannot obtain the calculation result, the present invention adopts the following technical solutions: A method for determining the overcurrent capacity of network-forming converters considering transient synchronous stability, including: establishing a reduced-order simplified model of the network-forming converter under short-circuit faults; obtaining the electromagnetic power curves under steady state, during transient faults, and after fault clearing; obtaining the mechanical power curve considering damping power consumption; calculating the fault critical clearing angle and critical clearing time under the initial current limit and determining whether the requirements are met; increasing the current limit value until the calculated fault critical clearing time is greater than the actual fault clearing time. The beneficial effect of the present invention is: quickly and accurately obtaining the required minimum current limit value.

The utility model discloses an electromagnetic power generation device based on road vibration energy, which belongs to the technical field of energy recovery and reutilization, and comprises an energy input module which comprises a partition plate and a ball screw, a nut of the ball screw is fixedly connected with the partition plate, an elastic element is propped against the lower part of the partition plate along the axial direction of the ball screw, and an upper cover plate is buckled at the top of the partition plate; an energy conversion module; comprising a lower cylinder, a rotor is arranged in the center of the lower cylinder, a plurality of magnets are fixedly connected to the outer side of the rotor in the circumferential direction, and a plurality of coils are fixedly connected in the lower cylinder around the rotor; the motion transmission module comprises a middle barrel, and one end, away from the partition plate, of the elastic element is fixedly connected with the top surface of the middle barrel; a conversion transmission assembly is arranged in the middle barrel, converts irregular rotation of the ball screw into unidirectional rotation and transmits the unidirectional rotation to the rotor. Irregular vibration is converted into stable one-way rotation, the energy conversion efficiency is improved, and the reliability and durability of the device are enhanced.

A device is disclosed, which includes: a charge portion with a plurality of piezoelectric elements embedded in a tire configured for a vehicle, a capacitor mechanically coupled to the tire and electrically coupled to the plurality of piezoelectric elements; a transmitter coil, mechanically coupled to the tire and electrically coupled to the capacitor through a discharge portion; wherein in response to an external radial pressure on the tire resulting from movement of the vehicle which causes a pressure on the plurality of piezoelectric elements, the plurality of piezoelectric elements produce an electrical charge on the capacitor, and wherein the discharge portion electrically connects the electrical charge on the capacitor to the transmitter coil to send electromagnetic power to the vehicle.

The invention discloses a power equipment energy recovery method based on multi-modal processing, and relates to the technical field of electric energy data, and the method comprises the steps: S1, collecting load data, an electromagnetic power value and a recovered heat energy value generated by target power equipment; s2, abnormal periods with electromagnetic anomalies are screened out; s3, constructing a multi-modal learning network, and compensating and correcting the recovered heat energy value in the abnormal period; s4, a first reference heat energy value is set, and a corrected heat energy value is marked; and S5, judging whether the recovered heat energy value in the current abnormal period is corrected or not, and if not, executing the step S3 again. Compared with the prior art, the method has the advantages that the multi-modal learning network based on the electromagnetic power value and the load data is constructed, the energy recovery effect of the equipment in different load states can be accurately captured and automatically corrected again, and the method has the advantage of more accurately evaluating the recovered heat energy and the beneficial effect of improving the energy recovery efficiency of the power equipment.

The utility model provides a self-powered intelligent water meter based on electromagnetic power generation. The self-powered intelligent water meter comprises a first built-in cavity, a second built-in cavity, a water inlet and a water outlet, the first built-in cavity and the second built-in cavity are connected through a bolt, the water inlet is communicated with the first built-in cavity, and the water outlet is communicated with the second built-in cavity. According to the utility model, the electric signal generated by the coil is utilized, the self-power supply technology and the self-sensing technology are combined, and multiple functions are realized through the simple structure; a switch control mode is adopted in the power supply management system, so that voltage and current are only used when needed, and no electric energy is consumed in other time; the power management circuit realizes a fully-automatic switching function through battery voltage detection, so that the whole system comprises the wireless transmission module and can be called as a real self-powered system; the energy of the energy source is fully and efficiently utilized, so that no energy loss exists in the energy conversion and distribution process.

This invention discloses a device for detecting and clearing ice and snow debris from power lines, comprising five parts: a crawling mechanism, an obstacle-crossing and clearing mechanism, an eddy current heating device, an autonomous power-collecting device, and a drone docking and flight device. The autonomous power-collecting device includes an electromagnetic power-collecting device and a pantograph contact power-collecting device. The crawling device and the eddy current heating device are located inside an openable structure, while the outside of the openable structure is connected to the electromagnetic power-collecting device and the obstacle-crossing and clearing mechanism. Drone docking and flight devices are located on both sides of the crawling device, with the pantograph contact power-collecting device placed on top of the drone docking and flight devices. A main control unit is located between the crawling device and the electromagnetic power-collecting device. This invention solves the problem that traditional mechanical clearing methods easily damage power lines and accelerate wear. Simultaneously, this invention also addresses the safety hazards faced by existing clearing equipment and personnel, as well as the problem of short single-operation time due to battery performance limitations.

The invention provides a magnetic force enhanced vibration energy collection device and method. The magnetic force enhanced vibration energy collection device comprises a piezoelectric power generation module and an electromagnetic power generation module, wherein the piezoelectric power generation module comprises a piezoelectric high-frequency beam, a metal low-frequency beam, a stop block and a first permanent magnet; the electromagnetic power generation module comprises a second permanent magnet, a coil, a magnetic conductive material and a coil shaft, the coil shaft is arranged in the coil, the magnetic conductive material is located in a center hole of the coil shaft, and the coil is arranged around the magnetic conductive material. Aiming at the problems of narrow working frequency band and low energy output of a vibration energy collector, two modes of collision frequency raising and frequency expanding and magnetic force frequency raising and frequency expanding are combined in one piezoelectric energy collecting module, and meanwhile, an electromagnetic power generation module is introduced. Therefore, the energy conversion efficiency and the overall generating capacity are improved, energy collection in the overall wide frequency range is achieved, low-frequency vibration energy with the wide change range in the environment can be effectively collected and converted into electric energy, and power is supplied to wireless sensing nodes.

The present application belongs to the technical field of grid-forming converter control, in order to solve the problem that the existing control strategy is difficult to balance the transient stability and grid support capability, a hybrid synchronization control method and system considering transient stability and grid support are proposed, when the grid-forming converter is detected to have transient instability risk, a grid-following control branch based on a first-order phase-locked loop is introduced in parallel on the basis of the original grid-forming virtual synchronous machine control loop; in the initial stage of the fault, by adjusting the gain proportional coefficient, the equivalent active power reference value is reduced to zero, so as to block the active power injection and minimize the acceleration area; after a preset initial time period, by dynamic adjustment, the equivalent active power reference value tracks the current electromagnetic power in real time, while continuing to suppress the power angle oscillation, the grid support capability of the converter is effectively restored.

The invention discloses an electromagnetic hybrid wave energy collection device and method, and belongs to the technical field of ocean wave energy collection and extraction, and the electromagnetic hybrid wave energy collection device comprises a floating ball assembly, a transmission assembly, an electromagnetic power generation assembly and a friction power generation assembly. The floating ball assembly is matched with the water surface, and mechanical energy generated when waves drive the rotating rod and the supporting and fixing rod to rotate can be efficiently captured; then the mechanical energy is transmitted to the electromagnetic power generation assembly and the friction power generation assembly on the two sides through the transmission assembly, the electromagnetic power generation assembly and the friction power generation assembly are promoted to synchronously generate electric energy, the synergistic effect of electromagnetic power generation and friction power generation is achieved, and the wave energy collection efficiency and the adaptive capacity to different wave conditions are remarkably improved; the bimodal structure gives consideration to high-power output and high-sensitivity detection and adapts to a complex marine environment, meanwhile, the floating ball assembly and the two power generation assemblies are arranged at intervals, mutual interference between the assemblies is reduced, and the operation stability of the device is guaranteed.

The application provides a flexible direct current system frequency control method, device, equipment and readable storage medium, which is suitable for a water and electricity through a flexible direct current pure island sending system. When it is judged that the AC voltage of the flexible direct current sending end converter station of the system exceeds the preset first threshold value, the application can judge whether the AC fault of the flexible direct current transmission system is removed. If the AC fault is removed, the frequency reference value of the sending end converter station control system is increased from an initial value to a preset second threshold value. After the frequency reference value of the sending end converter station control system is maintained for a preset first time, the frequency reference value of the sending end converter station control system of the flexible direct current transmission system is reduced from the preset second threshold value to the initial value according to the preset frequency reference value adjustment condition. The method can reduce the overshoot of the generator electromagnetic power during the recovery of the sending end AC system fault of the flexible direct current transmission system, reduce the impact on the sending end converter station of the flexible direct current transmission system, and is beneficial to maintaining the transient stability of the system.

The invention belongs to the field of mechano-electronics and industrial automation control, and particularly relates to an industrial-grade electromagnetic boosting arm device with a fault self-diagnosis and passive safety mode, which comprises a loading seat integrated with a circuit board. The device comprises an electromagnetic driving execution module, a multi-mode sensing acquisition module, a self-adaptive signal conditioning module, a real-time fault diagnosis module, a passive safety decision module and a dynamic trajectory planning module. Through the dynamic filtering and phase locking technology of the adaptive signal conditioning module, the interference of the noise of the power switch on the signal of the rotary transformer is effectively suppressed, and the accuracy of fault diagnosis and the positioning precision of the device are remarkably improved. A multi-dimensional parallel diagnosis mechanism of the real-time fault diagnosis module can identify potential faults of a motor, a transmission chain and a sensor in an early stage, and device performance deterioration caused by fault accumulation is avoided.

An infrared automatic switching light filter with wireless power supply includes: a housing; a light filter carrier plate slidably provided in the housing; and a driving mechanism configured to drive the light filter carrier plate to slide. The electromagnetic power mechanism includes a bracket; a coil is wound around outside the bracket along an axial direction of the bracket; the bracket is provided with conductive elastic pieces respectively connected to both ends of the coil; end portions of the conductive elastic piece are respectively provided with protrusion in contact with and connected to an external power supply apparatus; the electromagnetic power mechanism further includes a U-shaped magnetic conductive member penetrated through the bracket; and the transmission mechanism includes a rotary magnetic member provided between two ends of the U-shaped magnetic conductive member.

The invention discloses a vibration energy recovery device for a composite double-frequency-raising ball screw inerter. Comprising a shell, a ball screw arranged on the shell, a ball nut arranged on the ball screw, a dual frequency raising device connected with the ball nut, a self-disconnection device connected with the dual frequency raising device, an electromagnetic power generation element connected with the dual frequency raising device, and an elastic piezoelectric power generation element connected with the ball screw, the upper lifting lug is arranged above the ball screw, the lower lifting lug is arranged below the shell, the upper lifting lug is fixedly connected with the ball screw, the ball screw penetrates through the shell, the other end of the ball screw is connected with the elastic piezoelectric power generation element, and the lower lifting lug is fixedly installed on the shell. The vibration energy recovery device has the beneficial effects that vibration reduction and acceleration energy feedback can be considered according to different working conditions of a suspension system, and the problems that a traditional suspension vibration energy recovery device is low in energy recovery efficiency and cannot maximize the performance of a suspension are solved.

The utility model provides a kind of electromagnetic power chuck structure, comprising: electromagnetic power part, permanent magnet, main shaft, power chuck, transition disc, shield and pull rod;Electromagnetic power part is fixed on the inner wall of shield, the direction and size of electromagnetic force are changed by changing the current direction and current size of electromagnetic winding;Main shaft is connected with power chuck by transition disc;Electromagnetic power part controls permanent magnet to drive pull rod to move together by changing magnetic pole direction, pull rod pushes and pulls power chuck, and the chucking or loosening of the chucking jaw of power chuck is realized;The clamping force of power chuck is controlled by changing the magnetic force size of magnet to change the size of direct current.

The invention relates to the technical field of high-voltage electric energy collection, and discloses a power generation device and a power generation system applied to a high-voltage transmission line. The power generation device comprises a frame, a magnet, an electromagnetic power generation module and a friction power generation module. When the high-voltage power transmission line is electrified, the magnet can move under the action of magnetic torque generated by the high-voltage power transmission line. The electromagnetic power generation module comprises a magnetic induction coil, and when the magnet gets close to or away from the magnetic induction coil, the magnetic induction coil generates current under the action of the magnetic field of the magnet. The friction power generation module is arranged in the third containing cavity and comprises a magnetic sheet and a sub-module, and when the magnet gets close to the magnetic sheet, the magnetic sheet moves under the action of the magnetic field of the magnet, so that the first friction part and the second friction part rub against each other, and current is generated between the first electrode and the second electrode. Movement generated by the magnet in the power generation device under the action of the magnetic field of the high-voltage power transmission line can be converted into current of the electromagnetic power generation module and the friction power generation module at the same time, and the energy output efficiency is effectively improved.

The present invention discloses a method and system for suppressing ultra-low frequency oscillation based on the grey wolf optimization algorithm, belonging to the technical field of power system stability control. The method for suppressing ultra-low frequency oscillation based on the grey wolf optimization algorithm provided by the present invention obtains the damping characteristics of the power system where the hydro-generating unit is located, quantifies the dynamic energy difference between the mechanical power and the electromagnetic power into an energy increment, directly characterizes the influence of the energy interaction of the hydro-generating unit on ULFO, thereby reflecting the energy dynamic process under actual working conditions and avoiding misjudgment of the contribution degree caused by model simplification; by real-time tracking the change rate of the energy increment over time, dynamically calculates the negative damping contribution degree of each hydro-generating unit to ULFO, and accurately identifies the hydro-generating units with high negative damping contribution to ULFO; by using an improved grey wolf optimization algorithm to optimize the control parameters of the additional damping controller, it realizes jumping out of the local optimal solution and improves the convergence speed.

The application discloses a variable-speed unit primary frequency modulation method based on power setting value correction, which comprises the following steps: obtaining real-time operation parameters of a target variable-speed unit; a converter of the target variable-speed unit calculates an electromagnetic power variation corresponding to a primary frequency modulation action; a control amount of a mechanical hydraulic system of the target variable-speed unit is calculated and input into the mechanical hydraulic system to obtain a mechanical hydraulic control amount; and the primary frequency modulation of the variable-speed unit is completed according to the electromagnetic power variation and the mechanical hydraulic control amount. The application further provides a system for implementing the variable-speed unit primary frequency modulation method based on power setting value correction. The variable-speed unit primary frequency modulation method and system based on power setting value correction provided by the application not only realize the primary frequency modulation of the variable-speed unit, but also have the advantages of fast frequency modulation speed, high reliability, good practicability and good frequency modulation effect by virtue of the innovative control strategy design.

The application discloses a kind of vibration electromagnetic coupling-based marine power machinery vibration reduction and energy collection device, it is related to vibration control and energy recovery technical field, including shell, guide rod, mass block slidable along guide rod, composite transducing module;Composite transducing module includes electromagnetic power generation unit, piezoelectric power generation unit and energy management circuit;Electromagnetic power generation unit includes magnet group, inductive conductor;Piezoelectric power generation unit includes at least one piezoelectric element, piezoelectric element one end is connected with mass block, other end is connected with shell or structure fixed to shell, so that the relative displacement between mass block and shell can force piezoelectric element to produce deformation.Mass block cuts static magnetic field magnetic induction line and generates electromagnetic electric energy;While extruding piezoelectric element generates piezoelectric electric energy, and both are exported after circuit management.The present application efficiently converts harmful vibration energy into electric energy, while achieving vibration reduction, power supply for low-power consumption equipment, compact structure, high reliability, high energy recovery efficiency.

The energy storage container comprises a container body, a wind power shutter structure, a magnetic pole structure and energy storage equipment, the wind power shutter structure is arranged on the side wall of the container body and comprises blades, connecting rods, arc-shaped springs and copper wire winding structures, the connecting rods are inserted into the side wall of the container body, and the magnetic pole structure is arranged on the side wall of the container body. The ends, away from the container body, of the connecting rods are connected with the blades, the ends, located in the container body, of the connecting rods are connected with the arc-shaped springs and connected with the copper wire winding structures through the arc-shaped springs, the magnetic pole structures are installed in the container body, and the copper wire winding structures are used for cutting magnetic induction lines of the magnetic pole structures. And the copper wire winding structure is connected with energy storage equipment. Magnetic induction lines of the magnetic pole structures can be stably cut through the wind power shutter structures, and efficient electromagnetic power generation is achieved; meanwhile, the arc-shaped spring can play damping and resetting roles, so that the equipment stability is improved, and the problem that the container cannot effectively utilize wind energy is solved.

The invention discloses a piezoelectric nanometer-electromagnetic power generation composite omnidirectional flow energy power generation device which comprises an electromagnetic power generation mechanism, a coupler, a transmission shaft, an arc-shaped flow chamber structure and a mounting frame structure. The electromagnetic power generation mechanism is connected with the transmission shaft through a coupler; the mounting frame structure comprises a first trapezoidal arm and a second trapezoidal arm which are arranged on the transmission shaft at an interval, and the arc-shaped flow chamber structure is fixedly connected with the transmission shaft through the first trapezoidal arm and the second trapezoidal arm; a piezoelectric nano power generation structure is arranged in the cavity structure; the piezoelectric nanometer power generation structure comprises a cylinder structure and a piezoelectric power generation component, and the cylinder structure is connected with the piezoelectric power generation component in a clamped mode through an formed clamping groove structure. An arc-shaped flow chamber structure in the omni-directional flow energy power generation structure is driven by flowing fluid to drive a transmission shaft to rotate, and the transmission shaft drives an electromagnetic power generation mechanism to rotate through a coupler to generate power. According to the invention, the problems of single technical efficiency bottleneck and insufficient omnidirectional response capability of the current fluid energy collection technology are solved.

Energy generating system that generates energy from an external source includes a frame having two vertically spaced apart supports and at least one rod extending therebetween. An electromagnetic power generating arrangement is between the supports and includes a movable power generating coil, a first stationary power generating coil that interacts with the movable coil at an upper position in an upward path of movement of the movable coil, and a second stationary power generating coil that interacts with the movable coil at a lower position in a downward path of movement of the movable coil to generate electricity which is conveyed through a cable to an electricity processing system. The movable coil is connected to each rod, and the movable coil is lifted from the lower position to the upper position along each rod, ideally through energy from an external source.

The invention discloses a marine power machinery vibration reduction and energy collection device based on vibration electromagnetic coupling, and relates to the technical field of vibration control and energy recovery, the marine power machinery vibration reduction and energy collection device comprises a shell, a guide rod, a mass block capable of sliding along the guide rod, and a composite transduction module; the composite transduction module comprises an electromagnetic power generation unit, a piezoelectric power generation unit and an energy management circuit; the electromagnetic power generation unit comprises a magnet group and an induction conductor; the piezoelectric power generation unit comprises at least one piezoelectric element, one end of the piezoelectric element is connected with the mass block, and the other end of the piezoelectric element is connected with the shell or a structure fixed to the shell, so that relative displacement between the mass block and the shell can force the piezoelectric element to deform. The mass block cuts magnetic induction lines of a static magnetic field to generate electromagnetic electric energy; and the piezoelectric element and the piezoelectric electric energy are output after being managed by a circuit. Harmful vibration energy is efficiently converted into electric energy, power is supplied to low-power-consumption equipment while vibration reduction is achieved, the structure is compact, reliability is high, and the energy recovery efficiency is high.

The utility model discloses an armature sheet, an even number of grooves are arranged in the armature sheet, teeth are arranged between adjacent grooves, and the armature sheet is characterized in that a groove is arranged in the middle of the outer diameter of each tooth. According to the utility model, the magnetic field distribution of the motor can be improved, the magnetic flux of the inductance coil is increased, the maximum conversion of electromagnetic power is realized, the air gap magnetic resistance can be effectively reduced, the current when the motor works is reduced, and the working efficiency of the motor is improved; and meanwhile, the first arc section and the second arc section reduce the winding resistance of the enameled wire, and the winding efficiency is improved.