Wind-solar integrated power generation device

Abstract

The invention provides a wind-solar integrated power generation device, which relates to the technical field of power generation, and integrates the functions of fan support, photovoltaic installation, electrical equipment accommodation, operation and maintenance channels and the like on the level of a structure body by constructing a polygonal surface truss type tower base. Systematic defects of space splitting, repeated resource investment, redundancy of an operation and maintenance system and the like caused by traditional wind-solar discrete arrangement are fundamentally overcome; the polygon truss structure endows the tower base with excellent wind load resistance and shock resistance stability, and meanwhile, the network-shaped supporting rod pieces provide a reliable mounting foundation for various accessory components. A hollow cavity and partitioned electrical arrangement avoid the land occupation of an external box transformer substation and the risk of external application of cables, a tower base rotation avoidance mechanism and a top fireproof isolation layer cooperate to improve the operation safety and environmental adaptability, the overall structure has high mechanical stability, strong function ductility and excellent operation and maintenance accessibility, and the structure is simple and convenient. And an engineering landing integrated structure normal form is provided for wind-solar collaborative development in a high-density land constraint scene.

Description

Technical Field

[0001] This invention relates to the field of power generation technology, and in particular to a wind-solar integrated power generation device. Background Technology

[0002] Currently, wind and solar power systems generally adopt a split architecture where wind turbines and photovoltaic arrays are located independently, have separate pile foundations, and have their own maintenance channels and electrical facilities. This leads to a significant increase in land resource consumption, redundant infrastructure construction, and chaotic cable routing. Wind turbine towers have long existed as a single load-bearing structure, and their massive size and abundant surface area have not been used for composite functions such as photovoltaic installation, equipment integration, or personnel access. Photovoltaic arrays, on the other hand, rely on additional support systems, which not only increase costs and wind loads but also make it difficult to avoid the risks of dynamic shading and structural interference caused by the rotation of the wind turbine rotor due to their fixed orientation and rigid layout. Existing simple stacking schemes simply attach photovoltaic panels to the surface of the tower, lacking mechanical coordination design and dynamic avoidance capabilities. Adjustable support technology is also not coupled with the wind turbine structure, resulting in structural shortcomings in the overall system in terms of space efficiency, structural robustness, operational safety, and ease of maintenance throughout the entire life cycle. This makes it difficult to meet the urgent needs of land-scarce areas for highly integrated, highly adaptable, and highly reliable integrated wind and solar equipment. Summary of the Invention

[0003] The purpose of this invention is to provide a wind-solar integrated power generation device to fundamentally overcome the systemic defects caused by the traditional separate wind and solar power layout, such as spatial fragmentation, repeated investment of resources, and redundancy of operation and maintenance system.

[0004] In a first aspect, the present invention provides a wind-solar integrated power generation device, comprising: a wind turbine tower and a multi-faceted truss-type tower base disposed at its lower part; each pyramidal facet of the tower base is provided with a network of intersecting support rods; the support rods are used to hang and fix the photovoltaic module mounting frame, electrical equipment mounting components, maintenance channel support structure and vertical through-channel brackets; the tower base is a hollow cavity structure, and the cavity is provided with a partitioned electrical equipment installation area; the top of the tower base is provided with a fireproof isolation structure, and the bottom of the tower base is provided with a personnel and material access channel; one or more sides of the tower base are used to install photovoltaic modules, and the remaining sides are configured as non-installation surfaces to avoid being obstructed by the wind turbine blades during the rotation of the tower base.

[0005] In an optional embodiment, the photovoltaic module mounting frame includes: a horizontally extending support shaft, parallel purlins disposed on the upper and lower sides of the support shaft, and diagonal bracing members connecting the support shaft and the purlins; the photovoltaic module is fixed between two adjacent purlins by fasteners.

[0006] In an optional embodiment, the support shaft is equipped with a drive mechanism for driving the support shaft to rotate within a preset angle range, thereby driving the purlin and the installed photovoltaic modules to synchronously perform tilt adjustment movements around the axis of the support shaft, and the range of movement is configured so that the photovoltaic modules do not spatially interfere with other structures of the tower base during the adjustment process.

[0007] In an optional embodiment, limiting devices and buffer mechanisms are provided at both ends of the support shaft; the limiting devices are used to prevent the rotation angle from exceeding the limit range; the buffer mechanisms are used to reduce the impact load during the rotation start and stop process.

[0008] In an optional embodiment, a slewing support mechanism is installed at the bottom of the tower base. The slewing support mechanism is used to drive the tower base to rotate horizontally around the central axis of the wind turbine tower, and to lock and fix the tower base after it rotates to the target position.

[0009] In an optional implementation, the slewing support mechanism integrates a slip ring device for power and signal transmission to ensure continuous electrical circuitry during tower rotation.

[0010] In an optional implementation, the wind turbine nacelle is equipped with a nacelle rotation drive mechanism to drive the nacelle to rotate horizontally around the tower axis; the geometry of the wind turbine rotor and the spatial layout of the tower are designed in a coordinated manner to ensure that the rotor rotation trajectory maintains a safe, non-contact spatial relationship with either side of the tower.

[0011] In an optional implementation, an operation and maintenance walkway is provided under each row of photovoltaic modules, and the two ends of the operation and maintenance walkway are fixedly connected to the tower base truss structure; a vertically penetrating operation and maintenance channel is provided inside or outside the tower base, which is connected to the operation and maintenance walkway of each floor and is equipped with a lifting auxiliary device; a ring-shaped working platform is provided at the top of the tower base, which is connected to the operation and maintenance channel inside the wind turbine tower.

[0012] In an optional implementation, the inverter mounting components are mounted on the support rods on the side of the tower base and are configured to accommodate inverters of different sizes; the cable trays are fixed in layers on the support rods along the height of the tower base and are used to orderly collect and lay photovoltaic module output cables, inverter output cables and transformer substation connection cables.

[0013] In an optional implementation, a distance sensor is provided on the side edge of the tower base. The distance sensor is used to monitor the distance between the blade and the tower base in real time, and triggers an early warning signal when the distance is less than a preset safety threshold.

[0014] This invention integrates wind turbine support, photovoltaic installation, electrical equipment housing, and maintenance access at the structural level by constructing a multi-faceted truss tower base. This fundamentally overcomes the systemic defects of traditional separate wind and solar power layouts, such as spatial fragmentation, redundant resource investment, and redundant maintenance systems. The multi-faceted truss structure endows the tower base with excellent wind load and seismic stability, while the network of support members provides a reliable mounting foundation for various auxiliary components. The hollow cavity and zoned electrical layout avoid the risks of external transformer substation occupation and external cable laying. The tower base rotation avoidance mechanism and the top fireproof isolation layer work together to improve operational safety and environmental adaptability. The overall structure combines high mechanical stability, strong functional extensibility, and excellent maintenance accessibility, providing an engineering-feasible integrated structural paradigm for wind and solar synergistic development in high-density land-constrained scenarios. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a wind-solar integrated power generation device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of a photovoltaic module mounting frame structure provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of a tower base rotation structure and electrical equipment arrangement provided in an embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0019] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0020] Example 1 Figure 1 This is a schematic diagram of the structure of a wind-solar integrated power generation device provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of a photovoltaic module installation frame structure provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of a tower base rotation structure and electrical equipment arrangement provided in an embodiment of the present invention. (Reference) Figures 1 to 3 The device includes a wind turbine tower 100 and a multi-faceted truss-type tower base 200 located at its lower part.

[0021] Each pyramidal face of the tower base is provided with a crisscrossing network of support rods 300; the support rods are used to hang and fix the photovoltaic module mounting frame, electrical equipment mounting components, maintenance channel support structure and vertical through-channel brackets.

[0022] The tower base has a hollow cavity structure, with a zoned electrical equipment installation area 400 inside the cavity; the top of the tower base has a fireproof isolation structure, and the bottom of the tower base has a personnel and material access passage 500.

[0023] One or more sides of the tower are used to mount the photovoltaic module 600, while the remaining sides are configured to avoid being obstructed by the wind turbine blades during tower rotation.

[0024] Specifically, this integrated wind and solar power generation system uses the wind turbine tower as the vertical load-bearing backbone. Instead of the traditional cylindrical concrete or steel solid tower base, it is entirely replaced with a multi-faceted truss-type tower base with a clear geometric configuration and functional orientation. This tower base is preferably a triangular pyramid structure, but can also be expanded into a pyramidal spatial truss system with three or more sides, such as a square pyramid or pentagonal pyramid. Its core lies in abandoning the traditional tower base's function of "only bearing weight, not providing energy," and instead reconstructing the tower base itself into a three-dimensional technical platform integrating structural support, functional mounting, and spatial organization. Utilizing the mechanical stability advantages of the multi-faceted pyramid structure, the overall wind turbine's ability to withstand wind loads and extreme conditions such as earthquakes can be significantly improved. The tower height is determined based on the wind turbine model, the number of photovoltaic modules installed, and operation and maintenance requirements; for example, it is typically 30-60m.

[0025] Each pyramidal facet of the tower base is not a closed panel, but an open truss surface composed of numerous transverse and longitudinal members connected in a regular grid pattern. These members, while meeting multiple mechanical constraints such as wind load, earthquake resistance, and self-weight, are systematically endowed with multiple connection functions: serving as rigid anchoring surfaces for photovoltaic module mounting frames, as well as load-bearing carriers for inverter mounting brackets, cable tray fixing seats, anti-slip walkway support points, and vertical ladders or lifting rail supports. This "member as interface" design unifies all kinds of auxiliary structures originally scattered on the ground, supports, tower outer walls, and even independent structures into the truss network of the tower base itself, achieving a high degree of convergence in physical connections and logical unity in spatial layout, making full use of the tower base's spatial resources. Optionally, the spacing between transverse support members is 5-6m, and the spacing between longitudinal support members is 4-5m. The members are made of Q355B grade steel, and the cross-sectional dimensions are determined based on stress calculations to ensure structural strength and stability.

[0026] The tower base has a hollow cavity structure. The cavity is divided into several independent areas according to the size and functional requirements of the equipment. These areas are used to house electrical equipment such as the wind turbine transformer 101, photovoltaic transformer 102, and energy storage device 103, so as to achieve centralized arrangement of electrical equipment and reduce external footprint.

[0027] Optionally, unlike traditional solid or single-layer shell structures, its cavity is functionally divided both vertically and radially: for example, the bottom area is used to house large-volume wind turbine box-type substations, the middle section houses dedicated photovoltaic power generation box-type substations and energy storage equipment compartments, and the upper section reserves redundant space to accommodate future expansion needs; each functional area is separated by fireproof partitions or structural walls, and is equipped with equipment access holes, heat dissipation ducts, and maintenance entrances to ensure the safe operation and convenient maintenance of electrical equipment in a closed environment. The horizontal platform extending from the top of the cavity is covered with a composite fireproof isolation structure that combines fire resistance and thermal insulation performance. This structure physically and functionally forms a safety boundary between the photovoltaic array area and the wind turbine drive system, effectively blocking the path of fire spreading upwards along the tower base.

[0028] Breaking away from the conventional practice of wind turbine foundations only having maintenance openings, the base of the tower is specially designed with access channels for personnel and materials. These channels can be vertical shaft structures that lead directly underground, or horizontal corridors that open laterally and are equipped with fireproof and burglarproof doors. Their clear width and height are sufficient to support the passage of maintenance personnel and the entry and exit of small equipment carts, thus upgrading the tower base from a simple "supporting component" to a system hub that also functions as an "entry node".

[0029] Within this overall architecture, multiple pyramidal faces of the tower base are assigned differentiated functional roles: at least one face is dedicated to installing photovoltaic modules, and through the overall rotation mechanism of the tower base, these modules are actively adjusted to a spatial orientation offset from the rotation plane of the wind turbine impeller; the remaining faces dynamically transform into "avoidance faces" during rotation, without installing photovoltaic modules, serving only as interfaces for structural force transmission or for sensor installation, maintenance, and observation. This establishes a physical basis for "spatiotemporal decoupling" between the wind turbine and photovoltaics at the structural level, fundamentally avoiding static shading and dynamic interference issues. Optionally, the pyramidal faces where photovoltaic modules are installed maintain a base tilt angle of 30° to 60°, which balances the basic power generation efficiency of the photovoltaic modules with the structural drainage requirements.

[0030] This invention integrates wind turbine support, photovoltaic installation, electrical equipment housing, and maintenance access at the structural level by constructing a multi-faceted truss tower base. This fundamentally overcomes the systemic defects of traditional separate wind and solar power layouts, such as spatial fragmentation, redundant resource investment, and redundant maintenance systems. The multi-faceted truss structure endows the tower base with excellent wind load and seismic stability, while the network of support members provides a reliable mounting foundation for various auxiliary components. The hollow cavity and zoned electrical layout avoid the risks of external transformer substation occupation and external cable laying. The tower base rotation avoidance mechanism and the top fireproof isolation layer work together to improve operational safety and environmental adaptability. The overall structure combines high mechanical stability, strong functional extensibility, and excellent maintenance accessibility, providing an engineering-feasible integrated structural paradigm for wind and solar synergistic development in high-density land-constrained scenarios.

[0031] In one alternative implementation, such as Figure 2 As shown, the mounting frame for the photovoltaic module includes: a horizontally extending support shaft 701, parallel purlins 702 located on the upper and lower sides of the support shaft, and diagonal bracing members 703 connecting the support shaft and the purlins. The photovoltaic module 600 is fixed between two adjacent purlins by fasteners 704.

[0032] Specifically, the photovoltaic module mounting frame does not employ traditional ground supports or roof-mounted block-type fixing structures. Instead, it is deeply embedded within the geometric configuration of a multi-faceted truss tower base, forming an integrated installation system that is "structurally homologous and structurally symbiotic" with the tower base itself. In this embodiment, a pyramidal edge truss serves as the fixed support foundation. Multiple horizontal, continuous support shafts are erected at preset intervals, their length extending across the entire length of the facet. Both ends are rigidly connected to the nodes of the main load-bearing members of the tower base, serving as both the main load-bearing beams of the photovoltaic array and functional axes for subsequent dynamic adjustment. These support shafts do not rely on additional column support but directly utilize the spatial stiffness of the tower base's own truss to achieve cantilever stability, significantly reducing the number of additional components and wind load interference.

[0033] The purlins on both sides of the support shaft are arranged in parallel, and the spacing between them is not a fixed value, but is modularly set according to the size of the photovoltaic modules to be used. This design logic of "fixed axis, fixed purlins, and adjustable spacing" allows the same support shaft system to be compatible with various mainstream photovoltaic module models (such as 2278mm, 2382mm, 2384mm, 2465mm, etc.), greatly improving the engineering scalability and life cycle adaptability of the device.

[0034] As a key secondary stabilizing unit, the diagonal bracing connects the support shaft to the upper and lower purlins in an optimal triangular mechanical form. Its tilt angle and cross-sectional dimensions are optimized through structural simulation to ensure local stiffness while avoiding shading of the photovoltaic modules' backside radiation and natural ventilation. All connection nodes use high-strength bolts or pre-embedded welded interfaces to ensure the overall flatness of the purlin plane and the spatial accuracy of the module mounting surface are maintained even under complex conditions such as wind turbine vibration, strong wind pulsation, and temperature fluctuations. The photovoltaic modules are securely clamped between the upper and lower purlins using standardized fasteners (such as a combination of stainless steel clamps and T-bolts). Each module has at least four independent stress points, forming a constraint state of "upper pressure, lower support, and left and right limits." This prevents the modules from tilting due to wind suction and suppresses slippage deformation caused by thermal expansion and contraction, thus achieving highly reliable, maintenance-free installation without additional wind-resistant cables or counterweights.

[0035] In one optional embodiment, the support shaft is equipped with a drive mechanism 705 for driving the support shaft to rotate within a preset angle range, thereby causing the purlin and the installed photovoltaic modules to synchronously perform tilt adjustment movements around the axis of the support shaft, and the range of movement is configured so that the photovoltaic modules do not spatially interfere with other structures of the tower base during the adjustment process.

[0036] Specifically, the drive mechanism of the support shaft is not an isolated electromechanical module, but rather a key execution unit of the overall dynamic control system of the tower base, deeply embedded in the structural logic and control closed loop of the device. Optionally, the drive mechanism uses a high-precision servo motor as its core power source, rigidly coupled to the end of the support shaft through transmission components such as gear reducers or ball screws, ensuring stable output torque, sensitive angle response, and positioning repeatability better than 0.5°. Its installation position is optimized in three-dimensional space, completely embedded within the node space of the truss on the edge of the tower base's pyramidal surface, avoiding the risk of increased wind resistance and dust accumulation from exposed components, and facilitating future maintenance and replacement. Optionally, the motor housing is flush with or slightly recessed from the surface of the tower base members, maintaining the simplicity and industrial aesthetics of the truss structure.

[0037] The rotational movement of the support shaft is strictly limited to a preset angle range. This range is not solely determined by mechanical hard limits, but is defined by the dual constraints of the "structural safety envelope" and the "functional optimal range." On the one hand, through digital twin modeling and kinematic simulation, a minimum spatial distance cloud map is pre-generated between the photovoltaic module and adjacent components such as the tower's longitudinal members, maintenance walkways, cable trays, and the edge of the fireproof isolation layer during the full-angle rotation process. Based on this, a safe rotation sector without physical contact is delineated. On the other hand, combined with the annual variation of the solar altitude angle in typical latitude regions, the tilt angle range with significant actual effective power generation gain (such as the 35°–65° projection angle mapping range corresponding to the solar trajectory between the winter solstice and the summer solstice) is mapped as the recommended adjustment zone of the support shaft, so that the mechanical mobility range and energy output requirements are organically unified.

[0038] During the movement, the purlins and the fixed photovoltaic modules form a rigid subsystem, and the tilt angle is adjusted synchronously around its own axis with the support shaft. Throughout the process, the normal vector of each module plane changes continuously without twisting, warping or relative slippage. Because the purlins and the support shaft adopt a floating hinge or universal joint connection structure, even if the tower base undergoes slight elastic deformation or foundation settlement, it can still adaptively compensate for the installation surface deviation, ensuring that the back of the module always maintains a reasonable gap with the air flow field, which is conducive to heat dissipation and reduces dust accumulation.

[0039] More importantly, this tilt adjustment movement, along with the overall rotation of the tower and the orientation adjustment of the nacelle, forms a multi-degree-of-freedom coordinated relationship: when the tower rotates and a certain facet turns towards a strongly shaded direction, the control system can simultaneously instruct the support shaft on that face to tilt slightly upward, further raising the lower edge of the module and increasing the spatial margin with the impeller trajectory; conversely, during periods of sufficient sunlight and no shading, it automatically lowers to a high irradiance receiving angle. This three-level response mechanism of "structural mobility, coordinated action, and intelligent decision-making" enables the photovoltaic system to truly move from static installation to spatiotemporal adaptive operation.

[0040] In one alternative embodiment, limiting devices and buffer mechanisms are provided at both ends of the support shaft; the limiting devices are used to prevent the rotation angle from exceeding the limit range; and the buffer mechanisms are used to reduce the impact load during the rotation start-stop process.

[0041] Optionally, the limiting devices at both ends of the support shaft are not simple mechanical stops, but an intelligent limiting system consisting of a high-precision angle sensor, a micro switch, and a structural stop with triple redundancy. The angle sensor monitors the current rotation angle of the support shaft in real time. When the detected value approaches the preset safety boundary, the control system issues a deceleration command in advance. The micro switch, as a secondary hard trigger element, physically disconnects the drive circuit within 1°–2° (exemplary value) before the angle exceeds the tolerance, forcing the motor into an energy-consumption braking mode. Finally, a metal stop block, optimized through mechanical simulation, serves as the last structural defense. Made of high-strength wear-resistant alloy steel with a vibration-damping coating, it has a 0.5–1mm (exemplary value) non-contact gap with the flange at the end of the support shaft. Instantaneous contact only occurs in low-probability situations such as extreme misoperation or control failure, thus achieving a full-level limiting protection logic of "perception warning—logic intervention—structural fallback," ensuring that the support shaft cannot exceed the structural safety envelope under any operating condition.

[0042] The buffer mechanism is integrated between the bearing housing at the end of the support shaft and the output end of the drive motor. It adopts a dual-modal composite buffer structure: in the low-speed segment (initial / final stages of start-stop), a rubber-metal composite damping ring is used to absorb low-frequency vibration energy by utilizing the hysteresis characteristics of polymer materials; in the high-speed segment (approaching the target angular velocity), a built-in hydraulic damping cylinder is connected to the pipeline, and the oil flow rate is controlled by an adjustable throttle valve to achieve linear and controllable deceleration resistance. This buffer system is deeply coupled with the S-shaped acceleration and deceleration curve of the servo motor: the motor controller dynamically adjusts the torque output slope according to the target angle, current speed, and real-time pressure signal feedback from the buffer mechanism, so that the angular acceleration transitions smoothly throughout the rotation process, avoiding problems such as torsional vibration of the support shaft, micro-deformation of the purlins, or loosening of component mounting points caused by sudden load changes. Especially in frequent adjustment scenarios (such as rapid changes in the sun's position under cloudy weather), it significantly extends the fatigue life of transmission components and connection nodes.

[0043] Optionally, the limit and buffer functions possess self-checking and fault-tolerance capabilities at the system level: Upon each power-on start-up, the control system automatically performs a low-speed limit zero-point calibration, recording the mechanical zero-point offset of each support shaft and updating it to the motion control model; pressure strain gauges and temperature sensors are embedded within the buffer mechanism to continuously monitor the damping medium's performance degradation trend. When the buffer efficiency drops beyond a threshold, a predictive maintenance prompt is pushed to the operation and maintenance platform; in the event of a single-sided buffer failure, the system can automatically reduce the drive power on the other side and synchronously adjust the tower rotation strategy, trading space for time to maintain the overall avoidance function without degradation. This design philosophy, which elevates safety protection from passive constraint to active management, ensures that the tilt adjustment mechanism not only meets basic functional requirements but also becomes a crucial technical support for the high-reliability operation of the entire wind-solar integrated system.

[0044] In one alternative implementation, reference Figure 3A slewing support mechanism 800 is installed at the bottom of the tower base. The slewing support mechanism is used to drive the tower base to rotate horizontally around the central axis of the wind turbine tower, and to lock and fix the tower base after it rotates to the target position.

[0045] Specifically, this slewing support mechanism is the core mechanical interface for achieving dynamic control of the overall orientation of the tower base. Optionally, the entire mechanism consists of a large double-row four-point contact ball slewing bearing body, an embedded gear ring, a high-torque drive motor, a multi-stage planetary reducer, and a high-rigidity locking actuator. The inner and outer rings of the slewing bearing are rigidly connected to the wind turbine tower foundation flange and the main node of the bottom truss of the tower base, respectively. Its load-bearing capacity has been verified by full-condition simulation and can simultaneously withstand the coupling effects of the wind turbine overturning moment, the eccentric force of the photovoltaic array wind load, the concentrated load of maintenance personnel, and the seismic inertial force, ensuring that the structure maintains its integrity and rotational stability under extreme weather conditions.

[0046] The drive system employs a high-power permanent magnet synchronous servo motor paired with a high-reduction-ratio planetary gearbox. The output end engages with the inner meshing gear ring of the slewing bearing's outer ring via a precision toothed belt or direct-drive pinion. This transmission method eliminates traditional chain or open gear structures, avoiding positioning drift issues caused by dust intrusion, lubrication failure, and tooth wear. The motor controller features a built-in electronic cam function, which can adjust the output torque and speed in real time according to the preset tower rotation path (such as the minimum rotation angle required to avoid impeller obstruction, and the angular velocity curve mapped by the rate of change of the solar azimuth angle). This achieves stepless smooth speed regulation within a wide angular velocity range of 0.1°–1° / s and precise positioning within ±0.05° of the target angle. Crucially, the entire drive process utilizes the tower's own structure as a reaction frame, with the motor housing rigidly connected to the transverse members at the bottom of the tower. The output torque acts directly on the slewing bearing, eliminating the need for additional ground anchors or anti-torsion foundations. This significantly reduces dependence on on-site geological conditions and enhances the deployment flexibility of the device in complex terrains such as mountains and hills.

[0047] Optionally, the locking and fixing function adopts a dual-mode guarantee mechanism of "active hydraulic locking + passive mechanical self-locking": after the tower base rotates into position, the control system first drives the high-pressure hydraulic cylinder to push the locking wedge, so that it is radially embedded into the specially designed locking groove of the outer ring of the slewing bearing, forming an instantaneous large frictional torque for locking; subsequently, the built-in self-locking thread mechanism automatically engages after hydraulic depressurization, permanently holding the wedge in the locked position. Even in the event of abnormal situations such as power failure or hydraulic leakage, it can still maintain stable parking for more than several months by relying on static friction between metals and geometric self-locking effect. The locking state is monitored by pressure sensors and position switches throughout the process. Any sign of loosening will trigger an audible and visual alarm and start the emergency re-locking procedure. This design not only meets the stringent requirements of wind power equipment for long-term static stability, but also enables the tower base to serve as a reliable load-bearing platform for maintenance personnel to work at height in the locked state, realizing a structural value leap of "rotation is function, parking is tooling".

[0048] In one alternative embodiment, the slewing support mechanism integrates a slip ring device for power and signal transmission to ensure continuous conduction of electrical circuits during tower rotation.

[0049] Specifically, the slip ring device is not an external add-on component, but rather an endogenous functional unit of the slewing bearing mechanism, integrated with the slewing bearing body from the structural design stage. Optionally, its stator is rigidly fixed to the reserved interface of the wind turbine tower foundation flange by an array of high-strength bolts, while the rotor is coaxially nested in the inner ring of the slewing bearing through a precision stop and keyway structure, and rotates synchronously with the tower. The entire slip ring assembly is completely encapsulated in the hollow cavity of the slewing bearing, with only the standardized aviation plug interface exposed externally. This avoids the problem of increased contact resistance caused by wind, sand, rain, snow, and salt spray corrosion of traditional external slip rings, and eliminates mechanical risks such as cable entanglement, pulling, and external impacts, significantly improving the environmental robustness and electromagnetic compatibility of long-term operation.

[0050] Optionally, the slip ring adopts a layered modular design, with physical isolation and electrical shielding according to signal type and power level: the high-voltage power transmission channel (carrying the DC output of the photovoltaic array, AC input of the inverter, etc.) adopts large-section silver alloy contacts and forced air cooling structure, supporting bidirectional energy flow; the medium and low voltage control signal channels (such as angle sensor feedback, infrared ranging data, drive motor encoder signals, etc.) use gold-plated multi-core spring contacts, with microvolt-level signal-to-noise ratio and nanosecond-level response speed; a separate fiber optic slip ring channel is set up for high-speed transmission of large amounts of information such as video monitoring and vibration spectrum analysis. The three are strictly separated in the slip ring base by metal partitions and grounding copper foil, completely blocking the crosstalk of strong electric interference to weak electric signals, ensuring that all electrical connections maintain the same stability and reliability as when the tower base is rotating continuously for 360°.

[0051] More importantly, this slip ring system possesses full lifecycle status awareness capabilities: each conductive ring has a built-in temperature sensor and online contact resistance monitoring circuit, collecting real-time contact temperature rise curves and voltage drop trends; when an abnormal increase in contact resistance is detected in a certain channel (indicating oxidation or wear), the system automatically initiates a self-cleaning program, breaking down the oxide film through millisecond-level pulse current, and simultaneously prompting maintenance personnel to arrange preventative maintenance. When the cumulative number of rotations of the slip ring approaches the design life threshold, the platform pushes a replacement warning and automatically switches to the backup redundant channel (the slip ring is equipped with dual redundant power rings and triple redundant signal rings), ensuring uninterrupted operation of critical functions. This deep integration concept of "structure as communication pipeline, rotation as data path" transforms the tower base from merely a physical support into an intelligent hub node where the information flow and energy flow of the wind and solar system converge and merge.

[0052] In one alternative embodiment, the wind turbine nacelle is equipped with a nacelle rotation drive mechanism for driving the nacelle to rotate horizontally around the tower axis; the geometry of the wind turbine rotor and the spatial layout of the tower are designed in a coordinated manner to ensure that the rotor rotation trajectory maintains a safe, non-contact spatial relationship with either side of the tower.

[0053] Optionally, the nacelle slewing drive mechanism adopts a modular dual-redundant design, consisting of a high-torque hydraulic motor and a planetary gear reducer as the main drive unit, supplemented by an independent electric servo backup system. The hydraulic motor is directly connected to the inner ring of the slewing bearing of the nacelle base via a flange. The output torque is precisely transmitted to the entire nacelle after multi-stage reduction, achieving stepless speed regulation within the range of 0.5°–2° / s and precise positioning within ±0.1°. Its control logic is deeply embedded in the main control system of the whole machine, not only responding to real-time data from the wind direction sensor, but also receiving tower rotation commands and photovoltaic avoidance strategies, dynamically adjusting the nacelle turning sequence. For example, before the tower initiates avoidance rotation, the nacelle can be pre-adjusted to the optimal windward attitude and enter a low-disturbance locked state. After the tower is in position, it resumes full-power wind capture, thereby avoiding structural resonance and control oscillation caused by motion coupling when the two rotate synchronously.

[0054] Optionally, the geometric configuration of the wind turbine rotor can be customized based on the spatial constraints of the multifaceted tower base. Specifically, this includes the coordinated optimization of the rotor's elevation angle and cone angle. A moderate increase in the elevation angle shifts the blade tip trajectory plane upwards, away from the top edge of the tower base. A reasonable cone angle reduces the horizontal projection of the envelope cone formed by the rotation of the three blades, decreasing its projection width in the directions of each facet of the tower base. Together, these two factors ensure that regardless of the tower's rotational orientation, during the entire rotation cycle, any blade tip of the rotor maintains a purely structurally determined physical safety clearance between itself and the edge of any pyramidal facet of the tower base, supporting rods, or maintenance walkway structure—a clearance that is independent of control system intervention and purely determined by structural geometry. This clearance, verified by three-dimensional spatial envelope analysis, remains greater than a preset threshold even under the most unfavorable operating conditions (such as blade tip elastic deformation combined with tower base slight tilt at maximum wind speed), forming the first line of defense for "intrinsically safe" operation.

[0055] The aforementioned collaborative design can be further extended to the structural details: the top edge of the tower base adopts a rounded transition to eliminate sharp geometric abrupt changes; a flexible anti-collision buffer ring is installed at the root of the wind turbine blades, and its material stiffness is matched with the dynamic deflection curve of the blade tip through finite element simulation, providing progressive energy absorption rather than rigid collision in case of accidental approach; at the same time, a high-precision infrared ranging sensor array is pre-embedded at key measuring points on the edges of each facet of the tower base to monitor the instantaneous distance between the blades and the tower base in real time, and feeds the data back to the joint controller of the nacelle and the tower base in a closed loop. When the detection distance approaches the safety boundary, the system can actively trigger a three-level response mechanism of "load reduction - yaw - shutdown", forming a three-dimensional interference avoidance system of "structural reserved gap - flexible material buffer - active sensor protection". Thus, the nacelle rotation no longer only serves to improve wind power efficiency, but also becomes a key degree of freedom in the multi-body motion collaborative system together with the tower base rotation and photovoltaic tilt adjustment, truly realizing the structural symbiosis and behavioral co-governance of the two major energy capture units of wind and solar in the spatiotemporal dimension.

[0056] In one alternative embodiment, a maintenance walkway 901 is provided below each row of photovoltaic modules, and the two ends of the maintenance walkway are fixedly connected to the tower base truss structure; a vertically penetrating maintenance channel 902 is provided inside or outside the tower base, which is connected to the maintenance walkway of each floor and is equipped with a lifting auxiliary device; a ring-shaped working platform is provided at the top of the tower base, which is connected to the maintenance channel inside the wind turbine tower.

[0057] In this embodiment of the invention, the maintenance walkway system completely abandons the inefficient mode of traditional photovoltaic power stations that rely on ground inspection channels or temporary scaffolding, and instead deeply internalizes the maintenance access function as an inherent attribute of the tower structure. An independent maintenance walkway is set directly beneath each row of photovoltaic modules, its direction strictly parallel to the long side of that row of modules, and its width is set at 0.5–1.0 meters according to ergonomic standards (exemplary values), sufficient to accommodate single-person passage and small testing equipment carts. The main body of the walkway is made of anti-slip perforated steel plate or high-strength fiberglass grating, with a surface treated by sandblasting and galvanizing, possessing wind uplift resistance, corrosion resistance, and anti-slip properties. Its ends are not cantilevered in the air, but are rigidly anchored to the main truss members and longitudinal support rod nodes at the edge of the tower's pyramidal surface through special connecting clamps, allowing the walkway's self-weight and live load to directly merge into the overall load-bearing system of the tower, avoiding additional pier occupation of space and ensuring no resonance or structural loosening under strong wind vibration.

[0058] The vertically connected maintenance access road (i.e., the vertically connected access road) is the core artery connecting the ground and the high-altitude work surface. Its layout is flexibly adapted according to the tower base structure: for hollow cavity tower bases, the access road is preferably built-in, arranged along the central axis of the tower base or one side longitudinal bar, with guide rail supports pre-embedded in the inner wall; for external access roads, an open ladder shaft is formed by relying on the external longitudinal members of the tower base, and a lightweight metal protective net is added to the outside. The access road is equipped with a dual-mode lifting auxiliary device. During normal operation, a guide rail electric lifting platform is used. The platform car is equipped with automatic leveling and voice prompt functions, and can accurately stop at any level of the maintenance walkway entrance; in the event of a power outage or emergency failure, the backup mechanical rack and pinion ladder is immediately unlocked, and maintenance personnel can safely evacuate through the hand-cranked drive mechanism. Both modes operate through the same track system, without the need for redundant space occupation. All access road interfaces are equipped with standardized flip-top maintenance doors. The door body is flush with the walkway steps, forming a seamless passage interface after opening, eliminating the risk of tripping.

[0059] The circular work platform at the top of the tower is the highest point and hub of the entire operation and maintenance system. Its plan is a closed ring, and the platform is structurally connected to the vertical passage inside the wind turbine tower. A flange interface is reserved at the bottom of the platform to connect with the existing maintenance ladder or elevator car top inside the tower. A movable cover is installed on the platform surface, allowing for quick conversion into a wind turbine gearbox hoisting port or a high-altitude replacement work area for photovoltaic modules. Thus, maintenance personnel can enter from the ground entrance, reach the platform directly via the vertical passage, and then freely reach the starting point of any edge of the maintenance walkway along the circular path, or directly enter the wind turbine to conduct joint maintenance. This truly achieves an integrated operation and maintenance experience of "one entrance, full coverage, and zero transfers," reducing cross-system inspections that traditionally take several hours to a minute-level response time.

[0060] In one alternative embodiment, the inverter mounting component is located on a support rod on the side of the tower base and is configured to accommodate inverters of different dimensions.

[0061] The cable trays are fixed to the support rods in layers along the height of the tower, and are used to orderly collect and lay photovoltaic module output cables, inverter output cables and transformer substation connection cables.

[0062] The inverter mounting component is not a rigid base fixed to the ground or an independent bracket in the traditional sense. Instead, it serves as an organic extension of the tower truss system, integrated into the transverse and longitudinal support member nodes of each pyramidal surface of the tower in a modular and adjustable interface form. Optionally, the component consists of three parts: a main mounting beam, a multi-directional adjustable slider, and a quick-release locking mechanism. The main mounting beam is made of high-strength aluminum alloy profile, arranged along the axial direction of the support member, and has a standard T-slot on its surface. The multi-directional adjustable slider can slide freely and be precisely positioned in the X / Y / Z directions within the T-slot, adapting to inverter cabinets of different thicknesses, widths, and mounting hole positions. The quick-release locking mechanism uses the eccentric wheel lever principle to achieve instantaneous clamping and release with one hand. The entire installation process requires no tools, drilling, or welding, and the positioning, leveling, and fixing of an inverter can be completed within minutes. More importantly, the component supports "one beam for multiple uses", that is, multiple small string inverters can be mounted on the same main mounting beam at the same time, or large centralized inverters can be supported by adding load-bearing brackets, truly achieving full spectrum compatibility of equipment size and power level.

[0063] The cable tray system breaks away from the traditional "path is channel" thinking of cable laying, and instead is constructed as a "three-dimensional information spine" attached to the tower base structure. It is arranged in layers along the height of the tower base, and each layer of the cable tray is rigidly fixed to the intersection of the longitudinal and transverse support rods by adjustable angle connectors, ensuring that there is no loosening or resonance under the vibration of the wind turbine operation.

[0064] Optionally, the cable tray body adopts a double-layer composite structure: the outer layer is a fire-resistant and flame-retardant aluminum alloy channel, and the inner layer is embedded with a flexible partition to strictly and physically separate the DC output cables of photovoltaic modules, the AC output cables of inverters, and the high-voltage connection cables of transformer substations, and set up independent cable routing chambers according to voltage level and signal type; all cables are vertically connected to the corresponding equipment through standardized snap-on clamps to avoid swing wear caused by excessive hanging length; the top of the cable tray is covered with a removable rainproof and dustproof cover plate, the edge of the cover plate is equipped with water guide grooves and sealing strips, and the bottom is reserved with drainage holes to completely solve the problems of water accumulation, dust accumulation and ultraviolet aging during long-term outdoor operation.

[0065] The core value of the aforementioned electrical integration design lies in achieving three-dimensional optimization: "equipment proximity, shortest path, and unified management." The inverter is directly installed on the tower base directly beneath the photovoltaic module array it serves, reducing the DC-side cable length by over 60%, significantly lowering line loss and voltage drop. The layered layout of the cable trays precisely matches the equipment installation height, avoiding redundant cabling caused by repeated up-and-down routing in traditional solutions. All cable tray interfaces, branch nodes, and equipment access points are pre-embedded with RFID electronic tags, linked to a digital twin platform. Maintenance personnel can scan these tags with handheld terminals to retrieve cable types, routing diagrams, load currents, and historical fault records, achieving a paradigm shift from "experience-based troubleshooting" to "data-driven" maintenance. Thus, the tower base is no longer merely a platform for power equipment, but a smart carrier for the efficient coordination of energy and information flows throughout the entire wind and solar system.

[0066] In one alternative embodiment, a distance sensor is provided on the side edge of the tower base. The distance sensor is used to monitor the distance between the blade and the tower base in real time, and triggers an early warning signal when the distance is less than a preset safety threshold.

[0067] Specifically, the ranging sensors are not scattered, independent sensing units, but rather serve as the "nerve endings" of the tower's structural safety protection system, strategically deployed based on the multifaceted geometric features of the tower. Sensors are arrayed along the edges of key risk points on each pyramidal surface of the tower, focusing on covering the area where the wind turbine impeller's rotational envelope is closest to the tower structure. Examples include the three corner apexes of the triangular pyramidal tower, the protruding sections in the middle of each facet, and the cantilevered ends of the maintenance walkways. Optionally, each measuring point employs a high-precision infrared laser ranging module with a specially designed emission window forming a fan-shaped scanning field of view, simultaneously covering multiple cross-sections along the blade tip, root, and central chord, avoiding blind spots caused by single-point measurements. All sensor housings are flush-mounted with the surface of the tower components and are externally fitted with dustproof, waterproof, and light-shielding covers to ensure millimeter-level ranging accuracy and long-term stability even in harsh environments such as sandstorms, freezing rain, or high-temperature exposure.

[0068] Furthermore, the data collected by the sensors does not operate in isolation, but is deeply integrated into the overall closed-loop control architecture: the real-time distance signal is uploaded to the central controller at millisecond intervals, and is spatiotemporally aligned and fused with data from multiple sources such as the nacelle angle sensor, the tower rotary encoder, and the anemometer. The system has a built-in dynamic safety threshold model, meaning that the safety threshold is not a fixed value, but is updated in real time based on the current wind speed level, the real-time blade rotation speed, the thermal deformation of the tower structure, and the predicted value of the blade elastic deflection. For example, at rated wind speed, the safety threshold is set at 1.5 meters; when the wind speed rises to the cutoff wind speed critical point, the system automatically raises the threshold to 1.8 meters to reserve a larger buffer margin; once any sensor detects a distance that is continuously lower than the dynamic threshold for 200 milliseconds, a three-level response mechanism is triggered: Level 1 is an audible and visual warning, where the tower top working platform and the ground monitoring center simultaneously activate flashing warning lights and voice prompts; Level 2 is coordinated intervention, where the control system automatically sends fine-tuning commands to the nacelle slewing drive mechanism and the tower slewing mechanism, actively widening the physical clearance through precise yaw or turn of 0.3°–0.5°; Level 3 is mandatory protection, where if the distance continues to narrow to the hard limit (e.g., 1.0 meter), the wind turbine load reduction and shutdown procedure and the tower locking procedure are immediately initiated to ensure absolute safety.

[0069] Furthermore, this sensor system possesses self-learning and self-diagnostic capabilities: its raw point cloud data is continuously input into the edge computing module, which uses a lightweight neural network model to identify abnormal states such as blade surface fouling, icing, or localized deformation, and generates a health assessment report. Simultaneously, the system periodically performs a self-check process: it emits test pulses to a calibration target at a known distance, compares the measured values ​​with theoretical values, and automatically marks the sensor in the calibration queue when the deviation exceeds the limit, highlighting its location and fault type on the digital twin platform. This intelligent sensing paradigm, integrating perception, decision-making, execution, and feedback, transforms the tower from a passively constrained "static body" into a proactive, risk-predicting, attitude-adjusting, and safety-protecting "living entity," truly achieving inherent safety and intelligent operation of the integrated wind and solar power system under complex conditions.

[0070] The device provided in this embodiment of the invention has a structural dynamic adjustment function equipped with basic control logic to achieve precise control and coordinated operation of the structural attitude, ensuring safe operation of the equipment and optimization of power generation efficiency. The simplified control logic is as follows: First, the nacelle rotation control is implemented: based on the prevailing wind direction data collected by the wind direction sensor, the nacelle rotation drive mechanism is controlled to make the blades face the prevailing wind direction, ensuring optimal wind power output; at the same time, the nacelle rotation angle data is fed back to the tower base rotation control module in real time.

[0071] Then, the tower base rotation is controlled: based on the nacelle rotation angle data, the movement of the tower base slewing support shaft is controlled to drive the tower base to rotate, so that the photovoltaic array surface avoids the area coplanar with the blades and avoids shading; during the tower base rotation, the distance to surrounding equipment is monitored in real time through infrared ranging sensors to ensure rotation safety.

[0072] Finally, the tilt angle of the photovoltaic module is controlled: based on the solar altitude angle and azimuth angle data collected by the solar position sensor (or a preset time program), the drive motor of the support shaft is controlled to adjust the tilt angle of the photovoltaic module to the optimal power generation angle; during the tilt angle adjustment process, the rotation angle is ensured to be within a safe range by the limit sensor.

[0073] When the sensor detects abnormal situations such as the distance between the blade and the tower base being less than the safety threshold, the photovoltaic module flipping and interference about to occur, or the wind speed exceeding the limit, a safety protection command is immediately triggered to stop the rotation of the relevant mechanism and adjust the equipment posture to a safe position.

[0074] Optionally, the device provided in this embodiment of the invention supports two modes: automatic control and manual control. In automatic mode, the structure posture is automatically adjusted according to preset logic and sensor data. In manual mode, maintenance personnel can manually input control commands to adjust the posture of each mechanism through a local monitoring terminal or a remote mobile terminal, which is suitable for scenarios such as equipment debugging and fault diagnosis.

[0075] In summary, the wind-solar integrated power generation device provided by the embodiments of the present invention has the following beneficial effects: 1. Higher degree of structural integration: In existing technologies, wind turbines and photovoltaic arrays are mostly arranged independently or simply stacked. The embodiments of this invention, through the multi-faceted truss tower base design, deeply integrate functions such as photovoltaic module installation, electrical equipment layout, operation and maintenance channels, structural support, fire protection isolation, and personnel and material channels, to achieve "space sharing and functional complementarity," significantly improving space utilization and reducing project investment costs. At the same time, the network-like support rods and hollow cavity design of the tower base solve the problems of single function and wasted space in traditional tower bases.

[0076] 2. More comprehensive dynamic adjustment capability: Existing technologies can only achieve single-dimensional adjustment (such as wind turbine nacelle rotation or independent photovoltaic module tilt angle adjustment). The embodiments of this invention integrate a triple dynamic adjustment structure of nacelle rotation, tower base 360° rotation, and photovoltaic module tilt angle rotation. Through coordinated actions, it achieves wind turbine windward surface optimization, photovoltaic array shading avoidance, and optimal tilt angle adjustment. The adjustment dimensions are more comprehensive and the coordination is stronger, which can better adapt to complex environments and power generation needs.

[0077] 3. More comprehensive interference avoidance mechanism: Existing technologies lack active avoidance design between wind turbines and photovoltaic arrays. The embodiments of this invention achieve all-round interference protection between blades and tower bases, and between photovoltaic modules and other mechanisms through a triple avoidance mechanism of "structural design (wind turbine elevation angle and cone angle setting) + sensor monitoring (infrared ranging) + control protection (coordinated rotation)". Compared with existing technologies that can only passively avoid shading or interference, the avoidance mechanism of the embodiments of this invention is more proactive, more comprehensive and more reliable.

[0078] 4. More Rational Operation and Maintenance Integration with Electrical Equipment: Existing technologies do not fully consider the convenience of operation and maintenance and the integration requirements of electrical equipment. This invention constructs a fully covered operation and maintenance network by setting up layered operation and maintenance walkways, vertical channels, and a top work platform, which greatly reduces the difficulty and cost of operation and maintenance. At the same time, the hollow cavity in the tower base is used to arrange electrical equipment such as transformer substations, and inverters and cable trays are installed in an orderly manner on the tower base poles, which solves the problems of chaotic electrical equipment layout, disordered cable laying, and prominent safety hazards in traditional wind and solar power plants, and improves the overall reliability of the system.

[0079] 5. Enhanced structural adaptability and stability: Existing technologies have fixed structural designs, poor adaptability, and structural stability is limited by single-function designs; in the embodiments of this invention, the purlin spacing is adjustable, and the inverter mounting bracket is adaptable, enabling compatibility with photovoltaic modules and electrical equipment of different specifications; the structure adopts a multi-faceted truss design and high-strength materials, and through mechanical simulation optimization, the structural stability such as wind load resistance and earthquake resistance is significantly improved, adapting to the needs of different application scenarios.

[0080] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0081] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0082] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wind-solar integrated power generation device, characterized in that, include: Wind turbine tower and multifaceted truss-type tower base located at its lower part; The tower base has a network of support rods arranged in a crisscross pattern on each pyramidal surface; the support rods are used to hang and fix the photovoltaic module mounting frame, electrical equipment mounting components, maintenance channel support structure and vertical through-channel brackets. The tower base has a hollow cavity structure, and the cavity is provided with a zoned electrical equipment installation area; the top of the tower base is provided with a fireproof isolation structure, and the bottom of the tower base is provided with a personnel and material access passage. One or more sides of the tower are used to install photovoltaic modules, while the remaining sides are configured as non-installation surfaces to avoid being obstructed by the wind turbine blades during tower rotation.

2. The wind-solar integrated power generation device according to claim 1, characterized in that, The photovoltaic module mounting frame includes: a horizontally extending support shaft, parallel purlins disposed on the upper and lower sides of the support shaft, and diagonal bracing members connecting the support shaft and the purlins; The photovoltaic module is fixed between two adjacent purlins by fasteners.

3. The wind-solar integrated power generation device according to claim 2, characterized in that, The support shaft is equipped with a drive mechanism to drive the support shaft to rotate within a preset angle range, thereby driving the purlins and the installed photovoltaic modules to synchronously adjust their tilt around the axis of the support shaft. The range of motion is configured so that the photovoltaic modules do not spatially interfere with other structures of the tower base during the adjustment process.

4. The wind-solar integrated power generation device according to claim 2, characterized in that, Limiting devices and buffer mechanisms are provided at both ends of the support shaft; The limiting device is used to prevent the rotation angle from exceeding the limit range; The buffer mechanism is used to reduce the impact load during the rotation start-stop process.

5. The wind-solar integrated power generation device according to claim 1, characterized in that, A slewing support mechanism is installed at the bottom of the tower base. The slewing support mechanism is used to drive the tower base to rotate horizontally around the central axis of the wind turbine tower, and to lock and fix the tower base after it rotates to the target position.

6. The wind-solar integrated power generation device according to claim 5, characterized in that, The slewing support mechanism integrates a slip ring device for power and signal transmission to ensure continuous electrical circuit continuity during tower rotation.

7. The wind-solar integrated power generation device according to claim 1, characterized in that, The wind turbine nacelle is equipped with a nacelle rotation drive mechanism, which is used to drive the nacelle to rotate horizontally around the tower axis; The geometric configuration of the wind turbine rotor and the spatial layout of the tower are designed in a coordinated manner to ensure that the rotor's rotation trajectory maintains a safe, non-contact spatial relationship with either side of the tower.

8. The wind-solar integrated power generation device according to claim 1, characterized in that, A maintenance walkway is set under each row of photovoltaic modules, and both ends of the maintenance walkway are fixedly connected to the tower base truss structure. The tower base is provided with a vertically penetrating maintenance passage inside or outside, which is connected to the maintenance walkway on each floor and is equipped with a lifting auxiliary device. The top of the tower base is equipped with a ring-shaped working platform, which is connected to the maintenance channel inside the wind turbine tower.

9. The wind-solar integrated power generation device according to claim 1, characterized in that, The inverter mounting components are located on the support rods on the side of the tower base and are configured to adapt to inverters of different shapes and sizes. The cable trays are fixed to the support rods in layers along the height of the tower, and are used to orderly collect and lay photovoltaic module output cables, inverter output cables and transformer substation connection cables.

10. The wind-solar integrated power generation device according to claim 1, characterized in that, The side edge of the tower base is equipped with a distance measuring sensor, which is used to monitor the distance between the blade and the tower base in real time, and trigger an early warning signal when the distance is less than a preset safety threshold.

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