37results about How to "Improve wind power efficiency" patented technology

The invention belongs to the field of motor optimization designs, and relates to a multi-objective hybrid particle swam optimization design method for a double-fed wind power generator. The method comprises the following steps of: (1) determining a constraint condition and a to-be-optimized design variable of the double-fed wind power generator, and establishing sub-objective function equations to form a multi-objective function; (2) constructing variable space by using the to-be-optimized design variable, and constructing non-dominated solution sets of population according to the quality of an objective value; (3) ordering the non-dominated solution sets according a Pareto domination mechanism, determining a population niche by taking a non-dominated solution as a core, establishing a particle speed updating mechanism and finally obtaining an optimal design scheme; manufacturing a mode machine according to the optimal design scheme, inspecting an actual operation index of a motor, and comparing the actual operation index with an index given by the design scheme; and if the actual operation index exceeds a requirement range of operation indexes, adjusting a performance design scheme. Due to the adoption of the motor optimization design method provided by the invention, overall economic benefit and wind energy utilization rate of a wind power generating system can be improved.

The invention provides a guiding centralizer mechanism for a single-pile foundation of an offshore wind turbine. The guiding centralizer mechanism comprises a frame, a clamping and guiding mechanism, a horizontal adjusting mechanism and a vertical adjusting mechanism, wherein the frame is fixed onto a workboat, the horizontal adjusting mechanism and the vertical adjusting mechanism are arranged on the frame, and the clamping and guiding mechanism is connected with the vertical adjusting mechanism. The guiding centralizer mechanism is driven and controlled by a hydraulic cylinder and functions in clamping, guiding and centralizing the single-pile foundation of the offshore wind turbine, the pile foundation can be vertically piled into a seabed by a pile hammer during piling and prevented from deflecting during piling, normal running of the wind turbine is ensured, and wind generation efficiency is improved.

The invention discloses a bird dispelling device and relates to the technical field of bird dispelling devices. The bird dispelling device comprises a mounting seat, wherein a control box is arranged on the mounting seat; the control box is provided with a wind driven generator, a solar battery assembly, an infrared induction sensor, a buzzer, an ultrasonic module, a laser emission module and a rotary driving module. The device is used for inducing whether birds get close to the bird dispelling device or not through the infrared induction sensor; when the device induces that the birds get close to the bird dispelling device, a controller in the bird dispelling device is used for controlling the buzzer to make a bird dispelling sound, the ultrasonic module to send out bird dispelling ultrasonic waves and the laser emission module to send out laser rays and control a driving motor to drive a connecting rod to rotate; and connecting rod drives a rotary sheet to rotate so as to dispel the birds; and the bird dispelling effect is good.

The invention discloses a photovoltaic-wind-rainwater power generation integrated device and belongs to the field of new energy power generation. The power generation integrated device comprises a photovoltaic power generation-rainwater power generation device, a supporting mechanism, a wind power generation mechanism and a control system and generates power by utilizing wind energy, solar energy and rainwater, wherein both the photovoltaic power generation-rainwater power generation device and the wind power generation mechanism are fixed on the supporting mechanism, and power converted by the photovoltaic power generation-rainwater power generation device and the wind power generation mechanism is stored in a storage battery of the control system; the wind power generation mechanism comprises a wind power generator, fan blades and an empennage, and the rotating surface of the fan blades is controlled by the empennage to be perpendicular to the wind direction. According to the technical scheme, the solar energy, the wind energy and the rainwater are used for generating power, the device can work normally in different weather environments and is high in practicability and convenient to popularize and use, and the utilization rate of energy is increased.

The invention relates to a balancing device of an offshore wind generation set. The balancing device comprises offshore wind power blades, a wind power tower tube, transverse stainless steel frames arranged on the lower middle portion of the wind power tower tube, a generator set control box arranged on the transverse stainless steel frames, water circulating systems, gas circulating systems and gas bag systems. Through the arrangement of the systems and components, the probability that the offshore wind power generation set topples over is reduced to the lowest, and arrangement of an undersea wind power tower tube base is omitted; and meanwhile, the direction of the whole device can be adjusted according to the wind directions of season wind, and arrangement of the offshore wind power generation set in a deep sea area is possible.

A wind-energy long afterglow luminescence device comprises a casing (1), a wind power mechanical structure (2), a power generation device (3), LED luminous bodies (4) and a long afterglow luminous body (5); the power generation device (3) is connected with the wind power mechanical structure (2) and the LED luminous bodies (4) via lines respectively; and the wind power mechanical structure (2), driven by wind power, enables that the power generation device (3) drives the LED luminous bodies (4) to emit light and excites the long afterglow luminous body (5) to emit light. Power is used once being generated, the power transmission loss and using cost are reduced, the problem that a common wind energy luminescence device is hard to emit light continuously with minimal brightness without routine power supply or under a power off condition is solved, uninterrupted light emission is realized, and the minimal brightens of afterglow luminescence is improved greatly compared with a traditionallong afterglow luminescence; and a speed change mechanism can be used to improve the wind power generation efficiency further, a photovoltaic device can be combined, and wind and photovoltaic hybrid power supply is used to improve the safety of light emission.

The present invention discloses a photovoltaic-wind power-rainwater generation integration system for a building with a flat top, belonging to the field of the new energy power generation. The integration system comprises at least three integration generation devices at the top of the building with the flat top, and the integration generation devices are arranged in array; each integration generation device includes one photovoltaic generation-rainwater generation device, one supporting mechanism, one wind power generation mechanism and one control system, and the electric energy converted by the photovoltaic generation-rainwater generation device and the wind power generator is stored in the storage battery of the control system; and the external eave of the building body with the flat top is projected upwards to allow the rainwater to flow down from the water pipe of the building body to impact a water wheel for hydroelectric power generation, and the electric energy generated by a large hydrogenerator and the electric energy generated by the integration generation device are used for supplying power to electric equipment together. The photovoltaic-wind power-rainwater generation integration system for a building with a flat top is able to generate through adoption of solar energy, wind power and rainwater, and may normally work at different weathers so as to improve the energy utilization rate, have high practicality and facilitate popularization and usage.

The invention discloses a wind turbine generator with movable stator, and belongs to wind turbine generator. The invention comprises a bench (1), a wind wheel (2), a low speed axle (3), a gear box (4), a high speed axle(5), a generator rotor (6), a generator stator (7), a slide rail (8), a slide vane (9), a connecting rod (10), a slide vane regulator (11) and a wind speed sensor (12). The generator stator and the slide vane are fixed, with position in the slide rail regulated by the slide vane regulator according to the wind speed signals detected by the wind speed sensor. Part of the stator winding coils participate the rotary cutting of the generator rotor when the wind speed is normal; when wind speed increases to the high wind speed condition, the position of the generator stator is regulated through the connecting rod and the slide vane by the slide vane regulator to increase the number of stator winding coils which participate the rotary cutting of the generator rotor, and thereby increasing generation power, and maintaining a low level of the wind wheel rotation speed. The invention has the advantages of high utilization efficiency of wind energy, excellent regulation capacity and good security.

The invention relates to self-elevating pylon diffuser wind power generating equipment. The self-elevating pylon enhances the height of the wind power generating equipment, thereby facilitating the low-spot equipment installation, maintenance and coping with hurricane. Thin shell structures are connected by spoke structures to form a light-weight structure. The diffuser is used for obtaining high-speed wind power, and a guide plate is used for guiding the air flow to blow towards the vanes from the axial direction to the circumferential tangent direction, thereby propelling the turbine. The wind turbine directly drives the generator through a hydraulic coupling. The sopiler and the rollway rotating device rotate with the wind. The pylon is disassembled section by section, lifted and lowered by a plunger cylinder, and locked by a hydraulic thrusting support pin. The cordelle is used for enhancing the pylon stability; and when being installed, maintained and coping with hurricane, the equipment is fixed by an anchoring rope. The invention has the following beneficial effects of reducing the wind resistance, suspending the spoke light-weight structure, reducing the equipment size, enhancing the manufacturability of manufacture, installation and maintenance, simplifying the equipment, reducing the cost and enhancing the efficiency of wind power generation, can cope with hurricane, increases the equipment height to obtain high wind power, improves the single-machine generating capacity and realizes the large-scale wind power station.

The invention discloses a low-plane domestic wind power generation device which comprises a tower, an impeller, a variable pitch system, a transmission system, a master control system, a frequency conversion system, a power generator, a machine cabin and a yaw system. The impeller comprises a plurality of blades and a rotating shaft, the blades surround the rotating shaft, a rod body is arranged between each blade and the rotating shaft, one end of each rod body is connected to one end of the rotating shaft, the opposite end of each rod body is connected with the end of the corresponding blade, each blade is connected with the rotating shaft through the corresponding rod body, the adjacent blades are connected through the rod bodies, and the rotating shaft is hollow. The low-plane domesticwind power generation device is suitable for domestic consumers, after wind is in contact with the blades, the blades swing under the effect of the wind power, the blades rotate to drive the rotatingshaft connected with the blades to rotate synchronously, then a speed-up machine rises the rotating speed of the blades, and power generation of the power generator is promoted.

The invention discloses a method for automatically regulating active output of draught fans in a wind power plant. The method comprises the steps of detecting bus frequency of convergence points in the wind power plant, feeding detected data back to the input end of an active comparing element of a control system of each draught fan to enable the feedback convergence point bus frequency to serve as an active additional signal, correcting an original active set value to obtain a new active set value, achieving the purpose of regulating the active output of each draught fan in real time through each double closed loop control system according to the new active set value and automatically and synchronously regulating the whole wind power plant. The bus frequency of the convergence points in the wind power plant serves as a basic parameter for correcting the active output of each draught fan, the damping effect on an electrical power system from the wind power plant is effectively improved, the active output of all draught fans can be synchronously adjusted in real time, the method of disconnecting the draught fans is not needed when the active output of the draught fans in the wind power plant fluctuates, and the wind power efficiency is greatly improved.

The invention relates to a wing permanent-magnetic (resistance-variable) generator, wherein via driver, the rotor and stator can obtain displacement, to control their electromagnetic induction, change magnetic resistance, generating power, torque and generating frequency, to match wind frequency and generator power, to improve generating efficiency, and reduce the cost in constant-frequency control. And it can generate large generating efficiency with low permanent magnet excitation.

The invention discloses a high-power wind power generation system with an arc-shaped air duct, which has a vertically arranged cylindrical wind-gathering tower. The wind-gathering tower has several wind-gathering layers arranged horizontally with each other. The arc-shaped air duct load-bearing wall that is uniformly arranged axially with the cylindrical shape of the wind-gathering tower, and the end of the arc-shaped air duct load-bearing wall near the center of the wind-gathering tower has a continuous semi-circular structure. The first semi-circular air duct, the end of the first semi-circular air duct away from the central position of the wind gathering tower is provided with two second semi-circular air ducts connected with the periphery of the wind gathering tower and composed of several continuous semi-circular rings ; The first semi-annular air duct and the second semi-annular air duct are evenly equipped with several air duct generator sets. The invention provides a curved air duct high-power wind power generation system which has better wind gathering performance, can effectively utilize the wind entering the wind duct of the wind gathering tower, and improves the efficiency of wind power generation.

The invention discloses a wind power generation device with torque capable of being autonomously adjusted. The wind power generation device comprises an assembling shell body, a power generation mechanism, a wind power driving mechanism and a torque adjusting mechanism, the power generation mechanism and the torque adjusting mechanism are contained in the interior of the assembling shell body, thetorque adjusting mechanism is in driving connection with the power generation mechanism, a coupling gap is formed between the outer side wall of an input rotor and the inner side wall of the assembling shell body, the power generation mechanism comprises a movable ring, the torque adjusting mechanism is in driving connection with the movable ring, the torque adjusting mechanism comprises a centrifugal assembly and an overturning assembly, the centrifugal assembly comprises a plurality of centrifugal pieces, each centrifugal piece is connected with an input rotating shaft through a stretchableelastic piece, the overturning assembly comprises a plurality of overturning blades, and each overturning blade is connected with the movable ring through a connecting rod. According to the wind power generation device, the torque can be automatically adjusted according to the wind power, the application range of the wind power generation device is expanded, and the wind power generation efficiency is improved.

The invention discloses a method for obtaining force and torque and acting on a load as well as a device and application of the method, and belongs to the fields of new energy, electric vehicles, clean energy power generation, rotary machinery, perpetual motion machines and the like. The method is characterized in that wing-shaped parts are fixedly arranged in an inner cavity of a cavity body capable of doing rotary motion around a shaft, when a fluid flows through the cavity, the wing-shaped parts is forced, the force generates torque on a rotating shaft, and the device acts on a load when being connected with the load to work. When the device manufactured by the method is connected with a rotating electromechanical component to form an assembly to work, the assembly transmits a torque greater than that of the rotating electromechanical component, and the output power is greater than the input power; or flowing fluid with a power source flows through the cavity , the wing-shaped partsobtain thrust and generates torque, and the output power of the wing-shaped parts is larger than the input power of the flowing fluid power source. The device is combined with a generator to form a perpetual motion machine capable of doing work. The device can be used as a power source of mobile equipment, and application of the device for power generation is a brand-new clean energy power generation mode.