705results about "Renewable energy generation" patented technology

The invention relates to a vertical axis wind-flow energy power generation platform and an operation method thereof.The vertical axis wind-flow energy power generation platform comprises a platform body, an adjustable gearbox, a vertical axis fan and a vertical axis water turbine, and the platform body comprises a main stand column and a plurality of auxiliary stand columns; the adjustable gearbox is arranged in the main stand column; the vertical shaft fan comprises a fan shaft and a plurality of fan blades; the vertical shaft water turbine comprises a water turbine shaft and a plurality of water turbine blades; a fan shaft is connected with one end of the adjustable gearbox, and a water turbine shaft is connected with the other end of the adjustable gearbox; the transmission ratio gamma is adjusted through the adjustable gearbox, gamma = n wind / n flow, n wind is the rotating speed of the vertical axis fan, and n flow is the rotating speed of the vertical axis water turbine; and the rotating directions of the vertical shaft fan and the vertical shaft water turbine are opposite. Functional coupling of the vertical-axis fan and the vertical-axis water turbine is achieved by adjusting the transmission ratio of the adjustable gearbox, the vertical-axis fan and the vertical-axis water turbine are combined into a whole, and offshore wind energy and tidal current energy can be developed at the same time.

A method of power management of a hybrid power plant includes at least one type of renewable power generation equipment and an energy storage system, including: before a first dispatching time range: using first forecasts of energy production capability and energy price, and in particular hybrid plant status and plant parameters, to derive a first power generation schedule defining power generation in the first dispatching time range; at a dispatch point in time within the first dispatching time range: using second forecasts of energy production capability and energy price, and in particular plant status and plant parameters, to derive a second power generation schedule defining power generation in a second dispatching time range; and calculating an optimal power injection value for the dispatch point in time based on the first power generation schedule and the second power generation schedule taking into account at least one constraint.

The invention belongs to the field of wind power generation, and particularly relates to a wind driven generator with a differential device. A vertical axis wind turbine with a differential device is characterized in that a rotating shaft is arranged on a fixed shaft, an upper fixed gear and a lower fixed gear are fixedly arranged on the upper portion and the lower portion of the rotating shaft respectively, a positioning bearing is further arranged in the middle of the rotating shaft, and an upper reset spring is arranged between the positioning bearing and the upper fixed gear; and a lower reset spring is arranged between the positioning bearing and the lower fixed gear. An upper sliding rail and a lower sliding rail are arranged at the upper end and the lower end of the inner wall of the resistance type blade respectively, an upper sliding gear and a lower sliding gear are connected into the upper sliding rail and the lower sliding rail respectively, the upper sliding gear is meshed with the upper fixed gear, the lower sliding gear is meshed with the lower fixed gear, and the upper sliding gear and the lower sliding gear slide in the upper sliding rail and the lower sliding rail. The wind driven generator can combine the advantages of a lift type fan and a resistance type fan, is easy to start at a low speed and can speed up at a high speed, so that the power of the fan is improved.

An intelligent efficient vertical axis wind turbine with variable flaps and propeller pitches comprises blades, blade sliding rings, a main body sliding ring, a motor, a connecting rod, a connecting disc, an intermediate shaft, a motor connecting shaft and a rolling bearing. The blade comprises a flap, a flap connecting rod, a connecting rod, a rudder arm, a steering engine, a blade shaft and a blade front part, wherein the flap, the flap connecting rod, the connecting rod, the rudder arm and the rudder mechanism form a parallelogram-shaped connecting rod mechanism; the steering engine is a driving rocker, rotates by a certain angle under the driving of electric power, and can drive a driven rocker composed of a flap and a flap connecting rod to rotate by a certain angle. The invention further provides a method for controlling the variable flaps of the vertical axis wind turbine through the deep reinforcement learning algorithm. According to the invention, the pitching moment generated after the flap is driven by the steering engine to deflect is indirectly regulated and controlled. Under driving of methods such as deep reinforcement learning, the flap angle can be intelligently adjusted in a closed-loop mode along with the rotor phase and the incoming flow direction, and real-time optimization of the lift resistance and the direction of the blade is achieved.

The present invention relates to the technical field of micro-wind power generation devices, specifically a set-type vertical axis micro-wind power generation device, including a magnetic levitation generator, a power distribution cabinet and an energy storage cabinet. The transmission shaft of the magnetic levitation generator is sleeved with an empty pipe, and the top of the empty pipe is provided with a wind receiving part for guiding the wind beam to gather and drive the transmission shaft to rotate; the wind receiving part includes a wind wheel coaxially connected to the top of the transmission shaft and an air guide tube using a hyperbolic flow channel; the air guide tube guides all wind beams to the concave surfaces of the cavities of several wind wheels to do work, so the wind beams will not be refracted and disturbed by the leeward impact on the convex surfaces of the cavities of several wind wheels. The present invention guides all wind beams to several air inlets through the air guide tube that can generate a hyperbolic air channel, and turns to the wind receiving cavity, and then impacts the concave surfaces of several wheel blades to do work, so the wind beams will not be refracted and disturbed by the leeward impact on the convex surfaces of several wheel blades, and then all wind beams are converted into kinetic energy to drive the wind wheel, thereby improving the wind energy utilization coefficient.

The invention relates to the technical field of wind driven generators, and discloses a vertical axis wind driven generator with energy-saving and efficiency-increasing functions, which comprises a base, a support rod arranged on the base and a generator arranged on the support rod, a rotating table is fixed on a main shaft of the generator, and a plurality of groups of support frames are connected on the rotating table in an equal-angle annular array manner; a group of vertical blades are fixed on each group of support frames; a power-assisted starting mechanism is arranged on the rotating table, a rotating rod is rotationally connected to the power-assisted starting mechanism, a circular truncated cone is arranged at the end of the rotating rod, multiple sets of supporting plates are arranged at the two ends of the circular truncated cone, and spiral blades are arranged between the supporting plates in each set. According to the vertical-axis wind driven generator with the energy-saving and efficiency-increasing functions, when the wind speed is low, due to the fact that the spiral blades are small in mass and have better wind resistance and rotate before the vertical blades, the starting mechanism transmits rotating force of the spiral blades to the generator main shaft, and the wind speed threshold value of the vertical blades driving the generator main shaft to rotate is reduced; the power generation efficiency is improved.

The invention relates to a wind-powered device for generating electrical power and to a method for generating electrical power using wind power. In order to provide a technology for wind-powered generation of electrical power that has improved efficiency, a wind-powered device (1) for generating electrical power is proposed, comprising a vertical rotor (2), a first drive shaft (3) that can be driven by the vertical rotor (2), a second drive shaft (4), an electrical generator (5) that can be driven by the second drive shaft (4), and a movable lever device (6), wherein the first drive shaft (3) is operatively connected to the lever device (6) for driving the latter, and wherein the lever device (6) is operatively connected to the latter for driving the second drive shaft (4).

The invention provides a reverse lift-drag combined vertical axis wind turbine based on differential transmission and a control method, the vertical axis wind turbine comprises a rotor system, a blade system, a supporting system, a transmission system and a control system, the rotor system comprises a composite rotor shaft, and the composite rotor shaft comprises an inner rotor shaft and an outer rotor shaft; the inner rotor shaft and the outer rotor shaft coaxially rotate around the same rotating shaft in different directions; the transmission system comprises a transverse driving gear, a longitudinal driven double-tooth gear and a transverse driven gear. Differential speed and reverse rotation between the inner rotor shaft and the outer rotor shaft are achieved through linkage of the gears. The blade system comprises lift-type blades and resistance-type blades, the control system can adjust the angles of the lift-type blades and the resistance-type blades according to the wind speed and the wind direction, under the extreme working condition, the angles are adjusted to enable the blade system and the supporting system to be tangent to form a closed structure, and the safety of the overall structure of the wind turbine is protected.

The invention discloses an operation control method and device for a vertical axis wind turbine generator, and belongs to the technical field of wind power generation. The method comprises the steps that a pitch angle of a lower blade is driven to be gradually increased to a preset angle at a preset angular speed through a variable pitch controller; when the rotating speed of the wind wheel reaches the cut-in rotating speed, the optimal tip speed ratio is tracked until the rotating speed of the wind wheel rises to the rated rotating speed; when the rotating speed of the wind wheel reaches the rated rotating speed, the rotating speed of the wind wheel is stabilized at the rated rotating speed; when the driving torque under the action of the aerodynamic load continuously exceeds the rated torque of the generator and the rotating speed of the generator reaches an early-warning rotating speed threshold value, a shutdown control strategy is triggered; and under the shutdown control strategy, the connection between the generator and the power grid is cut off, and mechanical braking is applied, so that the wind wheel stops rotating. According to the technical scheme, smooth starting of the wind wheel, stable operation at the rated rotating speed and safe shutdown in the fault state are achieved, the starting and stopping capacity and power stability of the unit are effectively improved, the wind speed application range is expanded, and it is guaranteed that the whole-process operation of the unit is safe and reliable.

The utility model discloses a double-layer wing type vertical axis wind turbine, which relates to the technical field of wind power generation and comprises a wind turbine body and at least two wing type blade groups, each airfoil blade group comprises a main airfoil blade, an auxiliary airfoil blade and a plate sheet; the auxiliary wing-shaped blades are arranged on the sides, close to the rotating center line of the wind turbine body, of the main wing-shaped blades, and first wind passing channels are formed between the auxiliary wing-shaped blades and the main wing-shaped blades. The plate sheets are arranged on the sides, close to the rotating center line of the wind turbine body, of the main wing-shaped blades, and second wind passing channels communicated with the first wind passing channels are formed between the plate sheets and the main wing-shaped blades. And a clearance space is formed between one side edge of the plate sheet and the tail edge of the auxiliary airfoil blade. The pressure difference between the upper surface and the lower surface of the main wing-shaped blade can be increased through the design of the plate sheets, the blade tip vortex generated on the lower surface of the main wing-shaped blade can be weakened, then the lift force borne by the main wing-shaped blade is increased, and the purpose of further improving the self-starting performance and the power generation efficiency of the wind turbine is achieved.

The invention discloses a self-adaptive lift-drag type wind power blade and vertical shaft separation generator. A wind power blade comprises a mounting frame, a driving blade, an elastic reset piece and an inertia piece. The driving blade comprises a fixed blade and a movable blade pivotally arranged on one side of the fixed blade; in the unfolding state, a windsail is formed between the other end of the movable blade and the fixed blade; in the folding state, the movable blades and the fixed blades enclose a lift type blade with a wing-shaped cross section; the elastic reset piece enables the driving blade to have a trend of switching from a folded state to an unfolded state; the inertia part is movably arranged between the position, close to the main shaft, of the mounting frame and the position, far away from the main shaft, of the mounting frame and connected with the pivotal shaft through the flexible inhaul cable, and the flexible inhaul cable drives the driving blade to be switched from the unfolded state to the folded state when tensioned. According to the invention, the forms of the driving blades can be converted in different wind speed environments, and the problems that the vertical-axis wind turbine cannot be started at low wind speed and the wind energy conversion efficiency is low at high wind speed are solved.

The invention relates to the technical field of wind driven generator control, aims to solve the problems that in the prior art, blades of a vertical-axis wind driven generator are fixed, the wind sweeping area is difficult to adjust, and the power generation efficiency is limited, and provides a control strategy of a vertical-axis wind driven generator. Establishing a control relation model of rated wind speed, current wind speed, fan rated rotating speed, first generator rotating speed, positive and negative motor rotating speed and rotating direction. The current wind speed and the rotating speed of the generator are acquired by the sensor, and the controller compares the current, rated and maximum power wind speed according to a model, controls the positive and negative motor to drive the lifting mechanism and adjusts the blade length and the wind sweeping area. The wind wheel has the beneficial effects that the wind sweeping area of the wind wheel can be changed by controlling the lengths of the blades at different wind speeds, continuous and stable power generation is achieved, and the power generation efficiency can be effectively improved.

The invention discloses a vertical axis wind driven generator structure which comprises a vertically-arranged generator and a plurality of blades evenly arranged in the circumferential direction of the generator, and the rotor end of the generator is coaxially connected with a flat plate connecting flange. The upper end of the flat plate connecting flange is coaxially connected with a flange rotating shaft and a first angle connecting flange lower than the upper part of the blade in sequence; the flat plate connecting flange is connected with the middles of the blades through the horizontal supporting rods, the first angle connecting flange is connected with the upper portions of the blades through the first angle supporting rods, and a first anti-torsion supporting rod is connected between the upper portions of every two adjacent blades. The overall gravity center of the wind wheel can be reduced, so that the overall gravity center of the wind wheel is closer to the connecting end face of the tower drum, the length of an acting arm of force of a vibration load on the tower drum is effectively shortened, and the transmission effect of a dynamic load to the tower drum caused by unbalanced mass of the wind wheel is remarkably weakened; therefore, the vibration response of the tower drum caused by the coupling effect of pneumatic excitation and mechanical vibration is inhibited.

The invention discloses a frame type blade support, a vertical shaft impeller and a vertical shaft wind turbine generator. The frame type blade support comprises a supporting beam, a moving pair and a fixed connecting piece. The first end of one supporting beam is provided with a sliding pair guide rail and forms sliding pair connection with the other supporting beam. And the at least three supporting beams are connected to form an interconnection structure by mutually forming a moving pair. Each supporting beam is divided into an interconnection section and an overhanging section by the moving auxiliary guide rail of the other supporting beam. And each interconnection section is provided with at least one lap joint point. The two interconnection structures are in lap joint at the lap joint points and are connected through the fixed connecting pieces to form the blade support. The multiple supporting beams are mutually restrained, and the supporting rigidity of the support is improved. The load transmitted along the supporting beam can be directly transmitted to the rotating shaft, and the force transmission path is single. And a moving pair is arranged between the two supporting beams, so that the length of supporting the blade cantilever is shortened. The blade support is easy to obtain raw materials, low in cost, easy to machine and convenient to assemble.

The present invention discloses a vertical-axis wind turbine blade and a vertical-axis wind turbine generator device, primarily comprising a frame and a fan. The fan is disposed within the frame and includes a fixed fan and a movable fan. Several fixed fans are spaced apart from several movable fans, and the movable fan can rotate through an angle of 0-90 degrees. This application addresses the challenges of large-scale wind turbines, including difficult transportation, installation, maintenance, and high costs. It can be used in any terrain, regardless of topography, as long as there is sufficient wind power, while also achieving dual carbon emission reductions.

The invention is suitable for the technical field of wind power generation equipment, and provides a distributed power generation vertical shaft fan which comprises a fan support, a main transmission shaft, a fan main shaft base, a wind power detection device and at least one distributed power generation unit. The fan impeller is divided into a spiral impeller structure and a lift-drag composite impeller structure, the distributed power generation unit comprises a power generation device base and a main driving outer gear, the power generation device base is rotationally provided with a plurality of power generation driving gears, and the power generation driving gears are meshed with the main driving outer gear; the power generation driving gear is in driving connection with the distributed generators through the power generation driving shaft, the main transmission shaft drives the main driving outer gear to drive the distributed generators to generate power, the electromagnetic clutch is arranged between the power generation driving shaft and the distributed generators, and the number of the distributed generators connected to the load can be flexibly adjusted according to working conditions. And maximum utilization of energy is realized.

The invention relates to the field of wind driven generators, and particularly discloses a floating type vertical axis wind turbine multi-partition variable pitch control strategy which comprises the steps that S1, basic parameters and operating condition parameters of a unit are obtained; s2, establishing an aerodynamic model based on a double-disk multi-flow management theory and a superposition wind speed method; s3, measuring parameters through a sensor, and calculating a theoretical attack angle of the blade; s4, establishing a multi-partition pitch angle change function based on the theoretical attack angle; s5, constructing an NSGA-II multi-target optimization model, and taking maximization of an average power coefficient and minimization of a blade thrust standard deviation as targets; s6, substituting a function to obtain an optimal variable pitch control factor and an optimal pitch angle; and S7, the optimal pitch angle is converted into a variable pitch actuator instruction. The problems that an existing strategy is limited in partition, the wind direction influence is ignored, and optimal parameters for working condition adaptation are lacked are solved, the wind energy capture efficiency is improved, the load fluctuation is reduced, and the variable pitch control accuracy is improved.

The utility model discloses a vertical shaft light-weight blade universal breeze power generation device which comprises a tower drum, a stand column, a net rack, blades, a generator set, a mounting base and a bearing mechanism. The net frame is arranged on the stand column, the blades are fixed to the net frame, the tower barrel is hollow, a step ladder for climbing is arranged in the tower barrel, the generator set is fixedly arranged in the tower barrel through the mounting frame, the bottom end of the stand column is connected with the mounting base, the mounting base is arranged on the bearing mechanism and rotationally connected with the bearing mechanism, and the bearing mechanism is arranged at the top end of the tower barrel. One end of the mounting seat is connected with a generator set; blades are blown by breeze to drive the net rack, the stand column and the mounting base to rotate, and then the generator set is driven to rotate for power generation. According to the utility model, the blades are vertically and densely arranged, so that the wind direction limitation is avoided, and acting force can be generated in various wind directions to drive a generator set to operate and generate electricity.

The invention discloses an adjustable vertical-axis wind turbine, and relates to the technical field of wind power generation. The device comprises a supporting column, a mounting cylinder is fixedly mounted at the top end of the supporting column, the mounting cylinder and the supporting column are fixedly mounted through a flange, a rotating column is rotatably connected to the top of the mounting cylinder in a limiting mode, and connecting plates are rotatably connected to the periphery of the rotating column in a uniform limiting mode; a mounting shaft is hinged to the side, away from the rotating column, of the connecting plate in a limiting mode, and main blades are rotationally connected to the outer side of the mounting shaft in a limiting mode. The positions and the gravity centers of the blades are adjusted at the starting stage of driving rotation and under the condition of different rotating speeds, rotation can be started more easily in the static state, continuous rotation can be better facilitated after rotation, effective utilization of wind energy is improved, generated electric quantity is increased, and the wind power generation efficiency is improved. The attack angle of the blade is adjusted according to the wind speed, so that the blade is always located at the optimal wind receiving angle, and the utilization rate of wind energy is increased.

The present invention relates to a method for determining the value of electric energy in consideration of a power generation source in an EV ecosystem and a device for performing same. The method for determining the value of electric energy in consideration of a power generation source in an EV ecosystem may comprise: a step in which an EV ecosystem management device determines the incentive of an EV power plant on the basis of a power generation source of the EV power plant; and a step in which the EV ecosystem management device determines the carbon emission right to be allocated to the EV power plant on the basis of the power generation source of the EV power plant.

The invention relates to the technical field of power equipment, in particular to an adjustable blade supporting frame of a vertical axis wind turbine, which comprises a base, a central shaft is rotatably connected to the base through a rotating seat, two groups of fixed discs are fixedly arranged on the outer wall of the central shaft, and a plurality of brackets are mounted on the fixed discs; one end of the support is movably connected with the inner end face of the outer blade through a first hinge block, a centrifugal driving mechanism is fixedly arranged on the outer wall of the center shaft, and a plurality of angle adjusting mechanisms are in transmission engagement with the outer side of the centrifugal driving mechanism. According to the adjustable blade supporting frame of the vertical-axis wind turbine, the problem that a traditional fixed blade is difficult to adapt to variable wind conditions is effectively solved, active speed limiting can be achieved when the rotating speed is too high, damage to equipment caused by power overload can be avoided, it can be guaranteed that an outer blade always operates in a high-efficiency interval, and the service life of the equipment is prolonged. And it can be ensured that the draught fan can continuously and stably operate when the wind speed is low, the applicable wind speed range of equipment is widened, and the utilization rate of wind energy resources is increased.

A fluid turbine may include a vertically-orientable shaft having at least one opening extending transversely therethrough, a first blade portion configured for vertical orientation on first side of the shaft, a second blade portion configured for vertical orientation on a second opposite side of the shaft, at least one rod extending through the shaft opening and connectable at a first end to the first blade portion and at a second end to the second blade portion. A reinforcing sleeve may extend through the shaft opening and may be interposed between the rod and the shaft opening for reinforcing at least one of the shaft, the at least one shaft opening, or the rod against forces exerted by the first and second blade portions when fluid impacts the first and second blade portions.

The invention discloses a vertical axis wind turbine driving device with a wind deflector, and relates to the field of mechanical engineering, the driving device comprises a long shaft, a plurality of blades and a bearing assembly; the long shaft and all the blades form a wind wheel for driving the generator set to generate electricity; the wind deflector assembly is arranged on one side of the wind wheel; when the wind wheel rotates under wind power, the wind deflector assembly guides wind below the wind wheel to the upper portion of the wind wheel to form resultant force with wind acting on the upper portion of the wind wheel, driving torque generated by the wind wheel is enhanced, and the generator set is driven to generate power. The vertical-axis wind driven generator is very convenient to install and transport, the power generation efficiency of the vertical-axis wind driven generator is effectively improved, the blades are not prone to breakage and deformation, and meanwhile noise during working is effectively reduced. Therefore, compared with a traditional vertical axis wind driven generator driving device, the vertical axis wind driven generator driving device is more suitable for being popularized and applied in cities or areas with limited space, especially areas with rich wind energy.

The invention discloses a method for regenerating blades of an H-type vertical axis micro-wind generator from waste wind power blades, which relates to the field of resource recovery and reuse. The waste wind power blades are cut into profiles to manufacture the blades of the H-type vertical axis micro-wind generator. The epoxy resin fiberglass sandwich panel of the waste wind power blade has the characteristics of light weight, high strength and corrosion resistance. The fiberglass sandwich panel of the waste wind power blade is used to replace aluminum alloy to produce the blades of the H-type vertical axis micro-wind generator, so that the waste wind power blades are reused. While ensuring the strength of the blades of the H-type vertical axis micro-wind generator, the weight of the blades of the H-type vertical axis micro-wind generator is reduced, the load of the support structure and the transmission system is alleviated, and the blades of the H-type vertical axis micro-wind generator are easier to start and accelerate at a lower wind speed, so that they can operate in a wider wind speed range; the wind energy capture efficiency is improved, the waste wind power blades obtain a second life, and thus the recycling of resources is realized, promoting sustainable development.

A vertical axis wind turbine with variable thickness blade is disclosed. The wind turbine may include a blade including a skin having a first skin section and a second skin section. A first skin section thickness may be greater than a second skin section thickness. The blade may further include a bracketed structural member disposed on the first skin section. The bracketed structural member may include one or more L-shaped brackets. The wind turbine may further include a nut bar, which may be a flat nut bar. The bracketed structural member may be configured to hold the nut bar between the L-shaped brackets. The wind turbine may further include an arm connecting bracket that may be configured to attach the arm to the blade via the nut bar. The wind turbine may further include a transition fairing that may attach to the blade via the nut bar.

The invention provides a vertical axis fan device. The vertical axis fan device comprises a base; the rotating structure extends in the vertical direction, and the rotating structure is rotatably arranged on the base around the axis of the rotating structure; the moving part is movably arranged on the rotating structure in the axis direction of the rotating structure; the driving part is arranged between the moving part and the rotating structure and can drive the moving part to move; the multiple rotating blades are arranged at intervals in the circumferential direction of the rotating structure, the first end of each rotating blade is hinged to the rotating structure, and the second end of each rotating blade is a free end; the multiple connecting pieces and the multiple rotating blades are arranged in a one-to-one correspondence mode, the first ends of the connecting pieces are hinged to the rotating blades, and the second ends of the connecting pieces are hinged to the moving pieces; when the driving part drives the moving part to move, the rotating blade can be driven to swing around the first end of the rotating blade. According to the technical scheme, the problem that in the related technology, the rotating speed of a vertical axis fan cannot be controlled at the high wind speed, and consequently the vertical axis fan is prone to being damaged is effectively solved.

The present invention relates to the technical field of wind power generation, and discloses a vertical axis wind power generation device that is easy to install, comprising a mounting frame, a stator disk, a rotor disk, and fan blades, wherein the mounting frame comprises a plurality of fixed brackets, the fixed brackets are detachably fixed to the mounted member, and split bearings are arranged at both axial ends of the mounting frame; the stator disk comprises a plurality of stator brackets, and the stator brackets are connected to the mounting frame, wherein the stator brackets are provided with winding coils that can generate induced current; the rotor disk comprises a plurality of rotor sub-disks, and the rotor sub-disks are connected to the split bearings; wherein the stator disk is installed in the rotor disk, and a magnetic component that provides a magnetic field for the winding coils is arranged in the rotor sub-disk; the fan blades are connected to the rotor disk, and are used to provide rotational power for the rotor disk, and the advantage is that the device can be flexibly installed at any position of a pole tower of any specification.

The wind power generation resistance reduction structure comprises fan blades, the fan blades are provided with installation openings, reverse wind energy release window frames are arranged in the installation openings, and the reverse wind energy release window frames are arranged along the edges of the installation openings. The edge of one side of the reverse wind energy release window frame is hinged to the edge of the mounting opening, a reverse limiting mechanism for preventing the reverse wind energy release window frame from swinging towards the back faces of the fan blades is arranged between the reverse wind energy release window frame and the mounting opening, and a forward wind energy utilization window plate is arranged in the reverse wind energy release window frame. The forward wind energy utilization window plate can cover a window opening of the reverse wind energy release window frame. When the fan blades bear reverse wind, the reverse wind energy releasing window frame is blown open, the wind flows through a gap between the reverse wind energy releasing window frame and the installation opening, and the reverse wind effect borne by the fan blades is obviously reduced. Therefore, the influence of reverse wind can be reduced, and the wind energy utilization rate and the wind power generation efficiency are improved.

The invention relates to a rotor for a vertical axis turbine comprising: —a blade support structure extending from a center of the rotor, —a blade pivotally coupled to the blade support structure at a distance from the center of the rotor, and—a pitch regulating mechanism arranged between the blade support structure and the blade to regulate the pitch of the blade in dependence of fluid dynamic forces acting on the blade, wherein the pitch regulating mechanism comprises a damper system, wherein the damper system has a first damping coefficient in a first rotational direction of the blade relative to the blade support structure and a second damping coefficient in a second rotational direction of the blade relative to the blade support structure.

The invention relates to the technical field of wind power generation, and discloses a vertical axis wind power generation device convenient to install, the vertical axis wind power generation device comprises an installation frame, a stator disc, a rotor disc and fan blades, the installation frame comprises a plurality of fixing supports, the fixing supports are detachably fixed to an installed part, and split bearings are arranged at the two axial ends of the installation frame; the stator disc comprises a plurality of stator brackets, the stator brackets are connected with the mounting rack, and winding coils capable of generating induced current are arranged on the stator brackets; the rotor disc comprises a plurality of rotor sub-discs, and the rotor sub-discs are connected with the split bearing; wherein the stator disc is mounted in the rotor disc, and a magnetic assembly for providing a magnetic field for the winding coil is arranged in the rotor disc; the fan blades are connected with the rotor disc and used for providing rotation power for the rotor disc, and the fan blades have the advantage that the fan blades can be flexibly installed at any position of a tower of any specification.