8results about How to "Improve load characteristics" patented technology

The invention discloses an unmanned aerial vehicle and robot dog air-ground cooperative autonomous inspection system and method, and relates to the technical field of inspection, the system comprises an unmanned aerial vehicle, a robot dog and a ground station, the robot dog exerts the characteristics of long endurance and high load and the multi-degree-of-freedom flexibility of mechanical legs, long-distance transportation of the unmanned aerial vehicle and ground observation are achieved, and the unmanned aerial vehicle and robot dog air-ground cooperative autonomous inspection is achieved. The unmanned aerial vehicle provides the flexibility advantage of high-altitude observation, cooperative operation of the unmanned aerial vehicle and the robot dog is achieved, the problem that an existing inspection robot is single in structure and function is solved, and the efficiency and safety of inspection work are improved.

The invention belongs to the technical field of power distribution system planning, and particularly relates to a grid-based source network load storage layering and partitioning balance model. Comprising the following steps: S1, dividing a power distribution system into three levels, namely a power utilization grid, a power supply unit and a power supply grid; s2, determining partition boundary internet access interface parameters of the power utilization grid and a related power flow constraint equation; s3, determining partition boundary internet access interface parameters of the power supply unit and a related power flow constraint equation; s4, determining partition boundary internet access interface parameters of the power supply grid and a related power flow constraint equation; the method can effectively control the maximum load level needing power supply of the power transmission system, distinguishes the difference of the conventional load and the controllable load on the power supply reliability requirements, adopts an effective control means, reduces the maximum load demand of the system, improves the load characteristics of the system, and plays an important role in improving the utilization rate of power grid asset equipment and the asset investment benefit. And planning and realization of integration of the source, the network, the load and the storage in the power distribution system can be effectively promoted.

The invention discloses a piezoelectric self-Fenton composite film as well as a preparation method and application thereof, and belongs to the technical field of organic pollutant treatment. The preparation method of the piezoelectric self-Fenton composite film comprises the following steps: adding PVDF (Polyvinylidene Fluoride) into an organic solvent for dissolving to obtain a polymer solution; the preparation method comprises the following steps: adding iron, MgO and rGO into an organic solvent, carrying out cell crushing treatment, then adding a polymer solution, and uniformly mixing to obtain a mixed solution; and tiling the mixed solution to obtain the piezoelectric self-Fenton composite film. The piezoelectric self-Fenton composite film prepared by the invention has high pollutant degradation rate, high catalyst recovery efficiency and excellent loading characteristic; the preparation method of the piezoelectric self-Fenton composite film is simple, the piezoelectric self-Fenton composite film is easy to recycle, has an excellent degradation effect on various dyes and mixed dyes, and can be widely applied to normalized treatment of organic pollutants in multiple scenes.

The present invention provides an intelligent dispatching method and system for a photovoltaic storage and charging microgrid system, which relates to the technical field of power dispatching, including: obtaining the current photovoltaic installed capacity, the current energy storage installed capacity and the corresponding current collection time, the current weather data and the current electricity price to form a first eigenvector; according to the current photovoltaic power generation power sequence of the park, the current charging power sequence of the charging pile system and the current load power sequence of the remaining loads in the park, respectively predicting the predicted photovoltaic power generation power, the predicted charging power and the predicted load power corresponding to the future time period to form a second eigenvector; inputting the first eigenvector and the second eigenvector into an intelligent dispatching model trained under the goal of maximizing the electricity consumption income of the park and a corresponding constraint condition to predict the predicted energy storage capacity of the energy storage system. Comprehensively considering multiple characteristic indicators, the prediction accuracy is improved, and the stability and economy of the photovoltaic storage and charging microgrid system are effectively improved.

A secondary battery includes a positive electrode for a secondary battery, a negative electrode, and an electrolytic solution. The positive electrode for a secondary battery includes a positive electrode active material for a secondary battery. The positive electrode active material for a secondary battery includes first particles and second particles. The first particles have a median diameter D50 of greater than or equal to 15 micrometers and less than or equal to 30 micrometers and each include a lithium-containing compound. The second particles have a median diameter D50 of greater than or equal to 1 micrometer and less than or equal to 10 micrometers and each include a center part that includes a lithium-containing compound and a covering part provided on a surface of the center part. The covering part includes, in order from a side closer to the center part, an underlayer and a surface layer. The underlayer includes a reaction product of a first metal alkoxide in which no alkyl group is bonded to a metal atom. The surface layer includes a reaction product of a second metal alkoxide in which the alkyl group is bonded to the metal atom. The reaction product of the second metal alkoxide is bonded to the reaction product of the first metal alkoxide.

The present invention solves the following problems: providing a porous carbon structure having a high micropore volume and being self-sustaining; a method for manufacturing the same; a positive electrode material using the porous carbon structure; and a battery (particularly an air battery) using the porous carbon structure. The present invention is a porous carbon structure, which is used for the positive electrode of an air battery and has voids and a skeleton formed by incorporating carbon, and which satisfies all of the following conditions (a) to (d). (a) The external specific surface area of ​​the t-curve is 300 m 2 / g to 1,600m 2 / g; (b) the total volume of micropores with diameters ranging from 1 nm to 200 nm is within 1.2 cm 3 / g to 7.0cm 3 / g; (c) the total volume of micropores with diameters ranging from 1 nm to 1000 nm is within 2.3 cm 3 / g to 10.0cm 3 / g range; and (d) the total porosity is in the range of 80% to 99%.

The invention relates to a micromechanical component for a sensor device, having a first seismic mass (30a), wherein the first seismic mass, which is displaceable from its first rest position in a first direction (44) over a first limit path along a first axis, mechanically contacts a first stop structure, and having a second seismic mass (30b), which is displaceable from its second rest position at least along a second axis, wherein the second axis is parallel to or lies on the first axis, wherein a second stop surface (50b) of the second seismic mass, which is displaceable from its second rest position in a second direction (46) which is oriented opposite to the first direction along the second axis, mechanically contacts a first stop surface (50a) of the first seismic mass which is attached to the first stop structure. The invention also relates to a method for producing a micromechanical component for a sensor device.