5results about How to "Unreasonable solution" patented technology

This invention discloses a method for calculating short-circuit current in wind-solar-storage power stations based on the pseudo-current source method and equivalent approximation, comprising the following steps: Step S1, selecting a reference value; Step S2, inputting electrical parameters; Step S3, calculating network parameters; Step S4, calculating the short-circuit current provided by wind, solar, and energy storage power sources and the system based on the pseudo-current source method and equivalent approximation; Step S5, calculating the short-circuit current at each short-circuit point using the infinity calculation method. The short-circuit current calculation method for wind-solar-storage power stations proposed in this invention is suitable for equivalent calculation models under the special output conditions of wind power, photovoltaic, and energy storage power sources. It enables rapid and effective calculation of short-circuit currents at various voltage levels of busbars in wind farms, photovoltaic, energy storage, or combined wind-solar-storage power stations, demonstrating fast and efficient calculation and high application value.

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle lifting holder which is characterized in that when the height of a photoelectric pod needs to be adjusted, a driving assembly drives a plurality of lead screws to rotate synchronously, a nut moves linearly along with the lead screws, and a whole damping mechanism and the photoelectric pod are driven to lift stably through a damper fixing plate; a plurality of damping elements arranged between the damper fixing plate and the pod base can effectively buffer vibration from all directions; through cooperative work of the star-shaped connecting plate and the lifting assembly, a transmission and supporting structure is optimized, the stability of the lifting process is ensured, and the problem that a transmission structure of a traditional device is unreasonable is solved; the damping element is arranged below the bearing platform, the transmission path of vibration energy is optimized, and the damping effect is improved; the hollow structure on the outer frame of the cradle head reduces the overall weight on the premise of ensuring the structural strength, and overcomes the problem that the traditional cradle head is heavy, so that the unification of light weight, high stability and excellent damping performance is realized.

Embodiments of the present application disclose a point cloud clustering method, device, equipment and medium. The method comprises: determining a target point cloud cluster according to point cloud quantity information and cluster minimum enclosing circle information in a candidate point cloud cluster; the candidate point cloud cluster is obtained by preliminary clustering of to-be-clustered point cloud data; determining a candidate single-target minimum enclosing circle in the target point cloud cluster according to a single-target minimum enclosing circle radius of a detection target; determining a candidate single-target minimum enclosing circle matching position from a traversal process of the candidate single-target minimum enclosing circle in a cluster minimum enclosing circle of the target point cloud cluster according to a single-target point cloud quantity threshold of the detection target; determining a final single-target minimum enclosing circle matching position according to point cloud density in the candidate single-target minimum enclosing circle matching position, and determining a final clustering result of the target point cloud cluster according to the final single-target minimum enclosing circle matching position. The technical solution can effectively solve the problem of unreasonable high-density point cloud clustering.

The application discloses a hand exoskeleton and a robot teleoperation system, and the finger mechanism of the hand exoskeleton is arranged on a palm fixing base; the thumb mechanism comprises a knuckle assembly and a connecting rod assembly, the knuckle assembly is rotationally connected with the palm fixing base, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotationally connected with the palm fixing base, the other end of the first connecting rod is connected with one end of the second connecting rod, and the other end of the second connecting rod is rotationally connected with the knuckle assembly. The knuckle assembly of the application is rotationally connected with the palm fixing base, and the connecting rod assembly formed by matching the first connecting rod and the second connecting rod effectively solves the problem that the connection mode of the existing thumb mechanism is unreasonable, so that the posture of the thumb can be flexibly adjusted according to the natural physiological structure of the hand during the movement process, the wearing is comfortable, the movement track is highly matched with the physiological track of the human hand through the cooperation of the multiple connecting rods, the additional burden of the joint is reduced, and secondary injury is prevented.

The invention provides a parameter design method and device for a double-core symmetrical controllable phase shifter, and relates to the technical field of power grids. According to the method, firstly, key performance indexes such as a phase shifting angle, rated capacity, rated voltage, rated current and a short-circuit impedance range of the controllable phase shifter are determined based on system design requirements and constraint conditions, then accurate calculation is carried out according to the key performance indexes, the rated transformation ratio of a series transformer and a parallel transformer of the controllable phase shifter is determined, and the controllable phase shifter is obtained. The core component parameters such as the rated voltage, the rated current and the rated capacity of each winding are obtained, and the layered parameter design thought of first integration and then component is achieved; the overall performance index of the phase shifter is determined from the global demand of the power system, it is ensured that the design target is highly consistent with the system demand, the problem of disjunction with the overall operation condition possibly caused by direct component design is avoided, the overall performance optimization can be achieved, and the problem that a traditional parameter design method of the controllable phase shifter is unreasonable is solved.