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44results about How to "Firm support" patented technology

Insulator wire positioning device

The invention discloses an insulator wire positioning device, and relates to the field of power devices. The prior art cannot effectively cope with wire shaking, unstable positioning and non-uniform insulator stress, so that wire installation is difficult, abrasion is aggravated, and potential safety hazards are increased. The cable winding device comprises an insulator, a cable installed at the top end of the insulator, a clamp clamped on the side wall of the insulator, a pressing seat assembly, a winding module and a guiding module. According to the technical scheme, wire shaking, abrasion and stress concentration are remarkably reduced, and the safety and reliability of a power transmission line are comprehensively improved. The pressing seat assembly is stably installed at the top end of the insulator by pressing the cable, and the influence of external factors on the cable is prevented. The winding module is matched with the pressing base assembly to form a ratchet wheel structure rotating in one direction, the cable is wound on the side wall of the clamp, lateral displacement of the cable is limited, and deviation caused by external force such as wind power is reduced. And the guide module controls the shaking of the cable by adjusting pressing holding at different heights, so that the stability of wire installation is improved.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD ZHOUSHAN POWER SUPPLY CO

Portable multifunctional gas-liquid sampling device for process field analysis

The invention provides a portable multifunctional gas-liquid sampling device for process field analysis. The portable multifunctional gas-liquid sampling device comprises a shell, an acquisition system, a heating module, a filtering module, a control module, a hidden base and a plurality of pipelines, the acquisition system, the heating module, the filtering module and the control module are all connected with the shell, and the acquisition system is communicated with the heating module and the filtering module; the control module is electrically connected with the acquisition system, the heating module and the filtering module; the hidden base is located on one side of the shell and is in sliding fit with the shell. The device integrates the functions of gas-liquid sampling, heating treatment, multiple filtration and the like, adopts a light material, is provided with a handle, is convenient to carry, can treat gas and low-boiling-point liquid samples at the same time, can cope with collection and analysis of various samples, and improves the flexibility and applicability of field analysis.
Owner:ZHEJIANG SATELLITE ENERGY CO LTD

Electric pull rod assembling structure and assembling method

InactiveCN119659821AAutomatically adjust telescopicImprove convenienceSteering deviceConvertible cyclesDrive wheelElectric cars
The invention discloses an electric pull rod assembling structure which comprises an electric rod body and an assembling assembly arranged behind the electric rod body, and the electric rod body comprises a multi-section telescopic rod body, a power box body arranged below the multi-section telescopic rod body and a pull rod handrail arranged on the top of the multi-section telescopic rod body. The assembling clamping base is arranged at the bottom of the multi-section telescopic rod body, the power wheel body is arranged below the assembling clamping base and driven by the power box body, an assembling clamping head matched with the assembling clamping base is arranged on the front portion of the assembling assembly, and a driven wheel body is arranged on the rear portion of the assembling assembly. According to the electric pull rod assembling structure, through the technical means of electric stretching, automatic assembling and power driving, the defects of a traditional manual pull rod in the aspects of operation convenience, assembling and disassembling efficiency, stability and power transmission are overcome, high practicability and innovativeness are achieved, and the electric pull rod assembling structure can be matched with various assembling assemblies to form different electric vehicle structures.
Owner:GUANGZHOU FENGRUI BAGS MANUFACTURING CO LTD

Photovoltaic and hybrid energy storage power generation system multi-working-condition optimization control method

The invention relates to a multi-working-condition optimization control method for a photovoltaic and hybrid energy storage power generation system. The method comprises the following steps: controlling a grid connection strategy of the photovoltaic and hybrid energy storage power generation system according to an operation working condition; when the photovoltaic and hybrid energy storage power generation system is in a normal grid-connected state, the DC-AC grid-connected inverter adopts DC constant-voltage double-loop control, and the first bidirectional DC-DC converter and the second bidirectional DC-DC converter adopt constant-current control; when the photovoltaic and hybrid energy storage power generation system is in a low-voltage ride-through state, the DC-AC grid-connected inverter adopts single current loop control, the first bidirectional DC-DC converter adopts constant current control, and the second bidirectional DC-DC converter adopts constant voltage control; when the photovoltaic and hybrid energy storage power generation system is in isolated island operation, the DC-AC grid-connected inverter adopts V-f control, the first bidirectional DC-DC converter adopts constant voltage control, and the second bidirectional DC-DC converter adopts constant current control. Different control methods are adopted under different working conditions, stable support of the photovoltaic and hybrid energy storage power generation system to the power grid is achieved, and the service life of energy storage equipment is prolonged.
Owner:STATE GRID GANSU ELECTRIC POWER CO JIUQUAN POWER SUPPLY CO

Office chair capable of being hung stably

The utility model discloses an office chair capable of being hung stably, which comprises a support, a seat, an office chair body and a hanging device, two ends of the connecting frame are respectively fixed with the side wall of the base, and the upper surface of the connecting frame is connected with a backrest; the suspension assembly is detachably mounted between the connecting frame and the base, so that elastic buffering is performed through the suspension assembly when a user leans on the backrest; by arranging the connecting sleeve, the mounting block, the telescopic rod and the spring, a hanging technology is added on the basis of an original leisure office chair, stable support is provided for a user, large impact on the body when the user leans on the back is avoided, stable support is provided, spine pressure is relieved, fatigue is relieved, people feel very comfortable in use, and the leisure office chair is suitable for popularization and application. And the user experience is good.
Owner:ANHUI XINHUA UNIV

Compressed air-fused salt combined energy storage photovoltaic-photothermal-fuel backup complementary power generation system

A compressed air-fused salt combined energy storage photovoltaic-photo-thermal-fuel backup complementary power generation system comprises a photovoltaic power generation panel, a cooling tower, a multi-stage cooler, a multi-stage isothermal compressor, a heat recovery device, a compressed air storage tank, a reservoir, a multi-stage isothermal expansion machine, a multi-stage countercurrent heat exchanger, a high-temperature fused salt tank, a low-temperature fused salt tank, a photo-thermal tower and a heliostat field. And a combustion furnace and a fused salt coil pipe are arranged. According to the system, photovoltaic power generation, compressed air energy storage, fused salt energy storage and photo-thermal power generation technologies are integrated, and efficient conversion and storage of energy are achieved. Through the three working cycle processes of sunny day energy storage, night power generation and cloudy day fuel backup power generation, the system can achieve stable supply of renewable energy sources, improve the energy utilization efficiency and reduce dependence on fossil energy, and has wide application prospects and market value.
Owner:BEIJING ZHONGRE ENERGY TECH CO LTD

High-strength modularized steel structure supporting frame

The utility model provides a high-strength modularized steel structure supporting frame which comprises a supporting stand column, a butt joint module, an extending stand column, a cross beam installation module and a steel structure cross beam, the butt joint module is fixedly installed on the top of the supporting stand column, and the extending stand column is fixedly installed above the butt joint module. The cross beam mounting module is fixedly mounted on the outer side of the butt joint module; the steel structure cross beam is fixedly mounted at the outer end of the cross beam mounting module; the butt joint module and the beam installation module are arranged, the installation module is arranged, the installation process is simple and rapid, adjustment can be conducted, and the installation position of the steel structure can be adjusted according to needs.
Owner:QINGDAO ZHONGZHUNENG ARCHITECTURAL DESIGN CO LTD

Shoe

A shoe (1A) is provided with a bed section (10A) that supports the sole of a wearer's foot and is provided with a ground contact surface (12). The footbed part (10A) comprises a buffer part (13), the buffer part (13) comprises an elastic material having an elastic modulus of 0.1 MPa to 100 MPa and is composed of a single member, and the buffer part (13) comprises a three-dimensional network structure in which a three-dimensional lattice structure in which a plurality of columnar parts are connected to each other is used as a unit structure, and a plurality of the unit structures are repeatedly arranged. Each of the plurality of columnar sections includes a columnar section having a maximum outer dimension of 1.0 mm or more and 1.8 mm or less in a cross-section orthogonal to the direction in which the columnar section extends, and the thickness of the buffer section (13) in the direction orthogonal to the ground plane (12) is 25.0 mm or more.
Owner:ASICS CORP

A deviation rectifying device for a sliding rail of an H-rail shifting machine

This utility model relates to the field of rehabilitation training medical device technology, specifically to a correction device for the sliding track of an H-rail transfer machine. The correction device has at least one component mounted on the sliding track, dividing it into at least two segments. Each correction device includes a fixed unit and a moving unit. The fixed unit is fixedly connected to the left side of the sliding track segment, and the moving unit is fixedly connected to the right side of the sliding track segment. The moving unit can move left and right relative to the fixed unit, allowing the length of the sliding track to extend or retract. The correction device in this utility model allows for a certain degree of extension or retraction of the sliding track, thereby preventing jamming caused by non-parallelism when the sliding track reaches the H-shaped track joint.
Owner:ANYANG XIANGYU MEDICAL EQUIP

Integrated pipeline direct drinking water supply equipment with disinfection function

The utility model belongs to the field of water supply equipment, particularly relates to integrated pipeline direct drinking water supply equipment with a disinfection function, and provides the following scheme aiming at the problems that an existing integrated pump room is basically assembled in a fixed mode, the positions of a water inlet pipe and a water outlet pipe cannot be adjusted, the assembly requirement of a connecting pipeline is affected, and the installation flexibility is poor. The non-negative-pressure water supply device comprises a room body, the inner wall of the bottom of the room body is fixedly connected with a non-negative-pressure water supply device body, a water inlet and a water outlet of the non-negative-pressure water supply device body are communicated with a water inlet pipe and a water outlet pipe respectively, and pipeline assemblies are arranged at the other ends of the water inlet pipe and the water outlet pipe; the pipeline assembly comprises a rotating pipe and a moving pipe, and the rotating pipe is in contact with the water outlet pipe. According to the pipeline connecting device, people can conveniently connect pipelines, the installation flexibility is improved, stable support can be provided for the moving pipe, and the structural stability is guaranteed.
Owner:杭州浩水科技有限公司

Organizational data intelligence transformation and upgrading system and method based on A-DFCT technology

The invention provides an organization digital intelligence transformation upgrading system and method based on an A-DFCT technology. The system comprises an artificial intelligence model platform, a digital twinning and big data platform, a unified login and service fusion platform and an Internet of Things management and control platform. Wherein the artificial intelligence model platform (A) provides an algorithm and a model meeting organization decisions; the digital twinning and big data platform (D) can integrally process various data sources and provide deep analysis and insight services of data for users; the unified login and business fusion platform (F) aims to extract and integrate flow data, and ensures the accuracy and integrity of the data through a standardized interface and an efficient processing mechanism; the Internet of Things management and control platform (C) focuses on rapid deployment of intelligent hardware and provides stable and reliable support for Internet of Things application. According to the method, an artificial intelligence model is utilized, deep mining analysis is carried out on organization services, the accuracy of decision making is improved, the organization is assisted to reduce cost, improve quality and improve efficiency, and high-quality sustainable development is achieved.
Owner:HEBEI GUANGZHIYI INFORMATION TECH CO LTD

Battery pack and vehicle including same

ActiveEP4379924A4firm supportSimple partsSecondary cellsCell component details
A structure of a battery pack capable of mounting a cell assembly including a plurality of battery cells to the battery pack without a modular frame is provided. The according to an aspect of the present disclosure includes a cell assembly including a plurality of battery cells having electrode leads, a pack housing for accommodating the cell assembly therein, and a bus bar assembly disposed on both sides of the cell assembly, coupled to the pack housing, and connected to the electrode leads of the plurality of battery cells.
Owner:LG ENERGY SOLUTION LTD

Auxiliary umbrella opening device

The utility model relates to an auxiliary umbrella opening device which comprises a connecting assembly, a supporting assembly, a fixing assembly, a longitudinal striding belt and a transverse striding belt. The connecting assembly comprises a circular lock catch, a two-degree-of-freedom adjusting arm and a fixed clamping structure which are connected in sequence, the circular lock catch is detachably fixed to the upper end of the umbrella handle, the fixed clamping structure is fixed to one end of the supporting assembly, and the other end of the supporting assembly is connected with the longitudinal striding belt and located at the shoulder position of a human body; the fixing assembly is connected with the lower end of the umbrella handle, connected with the longitudinal crossing belt and the transverse crossing belt and located at the waist position of the human body. Compared with the prior art, the three-dimensional adjusting device has the advantages of high three-dimensional adjusting flexibility, convenience and rapidness in assembly and disassembly and the like.
Owner:TONGJI UNIV

Quartz boat annealing supporting device

The utility model discloses a quartz boat annealing supporting device which comprises an annealing furnace and a supporting rod used for supporting and annealing a quartz boat, one end of the supporting rod is connected with a supporting and clamping assembly, one end of the annealing furnace is correspondingly connected with a baffle, two ends of the lower surface of the annealing furnace are fixedly connected with connecting cylinders, and the lower surface of the baffle is provided with a hydraulic cylinder. The extension end of the hydraulic cylinder is connected to one end of the inner wall of the connecting cylinder. According to the utility model, the overall structure has enough stable supporting force on the quartz boat, the quartz boat can be effectively supported for use, the annealing quality is not influenced, the uniform heating effect is consistent, and the annealed and cooled quartz boat is convenient to take.
Owner:浙江泓芯新材料股份有限公司

Granular gel-based living body material as well as preparation method and application thereof

The invention discloses a granular gel-based living body material as well as a preparation method and application thereof. The particle gel-based living body material comprises hydrogel particles, sulfydryl-modified sulfate group-containing macromolecules and platelet-rich plasma dispersion liquid, and the particle gel-based living body material is of a cross-linked structure; photosynthetic oxygen production microorganisms are wrapped in the hydrogel particles. The hydrogel particles are prepared from branched macromolecules with double bonds and modified natural macromolecules through Michael addition polymerization, and the modified natural macromolecules are amino or sulfydryl modified natural macromolecules. The living body material is high in biological safety and stability, controllable release of the growth factors can be achieved, burst release and overhigh local concentration of the growth factors are prevented, and therefore the bioavailability of the growth factors is improved, and the lasting period of the growth factors is prolonged.
Owner:NANJING TECH UNIV

Hybrid current source type excitation device based on half-control and full-control devices and control method

The invention discloses a hybrid current source type excitation device based on a half-control device and a full-control device and a control method, the excitation device comprises a parallel excitation main converter and a series compensation converter, the parallel excitation main converter comprises a half-control device, the output side of the half-control device is connected with an excitation winding of a generator, and the output side of the half-control device is connected with the series compensation converter; the reactive power absorber is used for indirectly absorbing or injecting reactive power into a power grid through a generator under the control of a first switching signal; the series compensation converter comprises a full-control device, the output side of the full-control device is connected with an excitation winding of the generator through a series compensation branch inductor, and the full-control device is used for directly absorbing or injecting reactive power into the power grid under the control of a second switching signal; and the positive and negative electrodes of the direct current side of the parallel excitation main converter are respectively connected with the positive and negative electrodes of the series compensation converter. While the high-power processing capability and the cost advantage are maintained, the response capability of the system to faults and emergencies is enhanced, and the system stability and the electric energy quality are improved.
Owner:SANXIA JINSHAJIANG YUNCHUAN HYDROPOWER DEV CO LTD +1

Resource management method and device based on tree structure, equipment, medium and product

The invention discloses a resource management method and device based on a tree structure, equipment, a medium and a product, and relates to the technical field, the method comprises the following steps: constructing a resource tree according to external input structure information; when an externally input resource allocation instruction is received, downward allocation is performed from the root public resource pool and the root internal reserved resource pool of the root node according to the resource allocation instruction; when an externally input resource occupation application is received, obtaining an application user, an application resource and an applied occupation tree node of the resource occupation application, judging whether a user reserved resource in the occupation tree node meets the application resource or not, and if the user reserved resource does not meet the application resource, checking whether a superior public resource meets the application resource or not. According to the invention, the flexibility of resource allocation is enhanced.
Owner:CHINA MERCHANTS BANK

Battery pack and vehicle including the same

ActivePL4379924T3firm supportSimple parts
A structure of a battery pack capable of mounting a cell assembly including a plurality of battery cells to the battery pack without a modular frame is provided. The according to an aspect of the present disclosure includes a cell assembly including a plurality of battery cells having electrode leads, a pack housing for accommodating the cell assembly therein, and a bus bar assembly disposed on both sides of the cell assembly, coupled to the pack housing, and connected to the electrode leads of the plurality of battery cells.
Owner:LG ENERGY SOLUTION LTD

Semi-static phase design method, system and medium for RIS-assisted communication system

The present invention discloses a semi-static phase design method, system and medium for a RIS-assisted communication system, wherein the method comprises: establishing a channel model of a RIS-assisted link; exploring the working modes in different scenarios of RIS, and analyzing the phase design requirements of RIS in different scenarios; grouping RIS element surfaces according to the coverage requirements and channel models of RIS, and designing the phase compensation of each element surface by using beam broadening technology; and compensating for the gain loss caused by beam broadening by increasing the number of element surfaces. The present invention reasonably designs the phase of the subarray according to the indoor coverage requirements and the user data transmission rate requirements by using beam broadening technology, and provides relatively stable link support for mobile user terminals. The present invention can be widely used in the field of wireless communication optimization technology.
Owner:SOUTH CHINA UNIV OF TECH

A power plant

ActiveCN224746273Ufirm supportBalanced total output voltage
The embodiment of the application relates to the power technology field, and discloses a power device, which comprises at least two power modules connected in parallel to an output interface, wherein each power module comprises a control chip, a voltage adjustment module and an output balancing module; the first end of the voltage adjustment module is connected with the first end of the control chip and the first end of the output balancing module, the second end of the voltage adjustment module is connected with the second end of the control chip, the third end of the voltage adjustment module is connected with the first end of the control chip, and the fourth end of the voltage adjustment module is grounded; the second end of the balancing output module is connected with the output interface, and the third end of the balancing output module is grounded. By arranging the balancing output module between the output end of the current power module and the output interface, the power device can avoid the problem of causing the damage of components and the imbalance of device output caused by the charging of other power modules for the current power module when the output voltage of the current power module is low.
Owner:SHENZHEN HOBBYWING TECH CO LTD

Scheduling and processing method of virtual teaching and training platform based on Docker container

The present invention discloses a scheduling processing method for a virtual teaching training platform based on a Docker container, including: S1, a user selects a course; S2, a memory unblocked queue is idle S3, if it is not empty, CPU congestion items and severe congestion items are removed to form a first queue and turn to S4; S3, a memory congestion queue is idle S2, if it is not empty, CPU congestion items and severe congestion items are removed to form a first queue and turn to S4; S4, the first queue is idle S5, if it is not empty, the first queue is turned to the third queue and turn to S6; S5, the CPU severe congestion items in the first queue are removed to form a second queue, the second queue is idle S2, if it is not empty, the second queue is turned to the third queue and turn to S6; S6, select a corresponding node and turn to S7; S7, if the node bandwidth is congested, turn to S8, if it is not congested, turn to S9; S8, find a node with non-congested bandwidth and turn to S9; S9, allocate Docker containers to the applicant. The present invention can correct the unreasonable container allocation in time and avoid the phenomenon of experimental environment jam.
Owner:SICHUAN TOURISM UNIV

Melon seed shell part riveting production line of carburetor

The invention discloses a riveting production line for melon seed shell parts of carburetors, and belongs to a production line in the technical field of carburetor production equipment. According to the technical scheme, a shifting fork linear conveying device is arranged on the upper end face of a supporting frame; the three melon seed shell cross-shaped transplanting devices are sequentially arranged on the upper end face of the placing frame in the conveying direction; the melon seed shell oscillation detection device is arranged at the output end of the third melon seed shell cross transplanting device in the conveying direction; the first visual detection device is arranged at the output end of the melon seed shell oscillation detection device; the melon seed shell riveting device, the workpiece rotating device and the second visual detection device are sequentially arranged in the output direction of the first visual detection device; according to the melon seed shell part riveting production line of the carburetor, efficient and high-precision riveting machining of melon seed shell parts on workpieces is achieved.
Owner:FUDING RUIDA AUTOMATION EQUIP CO LTD

Inflatable nursing mattress

An inflatable nursing mattress comprises a plurality of air bags arranged on the mattress and further comprises air channels which are arranged in the mattress and communicated with the air bags. Through reasonable arrangement of component structures, the mattress can stably lift the body of a patient lying on the surface of the mattress and stably support the body after being lifted, and meanwhile, the nursing mattress can be controlled in temperature through the temperature of gas or liquid injected into the air bags during use, so that the requirements that the body temperature of the patient is too low clinically, and the body is not damaged are met. The problem that heating is needed is solved; by controlling the air pressure in each air bag, controlling the height of each air bag and massaging according to the height change of each air bag, bedsores caused by long-term lying in bed are avoided, lateral turning of a patient can be assisted, and the workload of nursing work of medical staff is reduced.
Owner:DAOKETAN (SHAANXI) INFORMATION TECHNOLOGY CO LTD

Novel intelligent portable water purifying device

The invention provides a novel intelligent portable water purifying device, and relates to the technical field of water purifying and filtering devices.The novel intelligent portable water purifying device comprises a foldable filter frame, a PEVA water bag, a water purifier filter element device and an LDPE foldable water bag, a water purifying structure is fixedly installed at the upper end of the PEVA water bag, and the water purifying structure comprises a portable water bag handle; a water inlet of the filter element device and a water outlet of the filter element device are respectively formed in the side wall of the filter element device of the water purifier, and silica gel water pipes are respectively and fixedly arranged between the water outlet of the PEVA water bag and the water inlet of the filter element device and between the water outlet of the filter element device and the water inlet of the LDPE folding water bag. The whole device is easy to operate and convenient to carry, the filter element can be used repeatedly, surface water such as slightly-polluted lakes and rivers can be quickly and effectively converted into clean water sources which can be safely drunk, the living conditions and exercise experience of people can be improved, and the emergency management capacity and the national safety guarantee level can be improved.
Owner:天津仁爱学院

Alarm device for epilepsy seizure

The invention discloses an epilepsy seizure alarm device, and relates to the technical field of medical treatment. The sickbed comprises a sickbed body, leg supports are slidably connected to the top of the sickbed body, a pillow is arranged at the top of the sickbed body, and universal wheels are arranged at the bottom of the sickbed body; and an alarm device is arranged at the top of the sickbed. Force for driving the fixed block to move through leg support displacement is matched with a positioning rod, a fixed rod, a knocking rod and other components in the alarm device, the fixed rod is driven to move through the fixed block displacement, then the knocking rod is driven to move through the fixed rod displacement, the bell is knocked through the knocking rod displacement, the bell makes a sound, and the alarm effect is achieved. According to the invention, the system achieves the effect of automatically giving an alarm when a patient gets ill, reduces the work pressure of nursing personnel, avoids the dependence on complex electrical equipment, and also reduces the possible faults of electronic equipment.
Owner:XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI

Anti-attenuation sole and running shoes

ActiveCN119279310AImprove long-distance running performancestable supportSolesAthletic injuryMechanical engineering
The invention relates to a shoe accessory and a shoe, in particular to an anti-attenuation sole and a running shoe. The anti-attenuation shoe sole comprises a shoe insole and a supporting plate, the supporting plate comprises a heel supporting part, an arch supporting part and a half sole supporting part which are integrally connected in sequence, the two sides of the heel supporting part in the width direction are each integrally connected with an upper extending piece, one end of each upper extending piece is integrally connected with a lower extending piece, and the other end of each lower extending piece is connected with a shoe sole. The lower extending piece is located below the upper extending piece, elastic filler is clamped between the upper extending piece and the lower extending piece, and the lower surface of the shoe insole is an arc surface. The running shoe comprises the anti-attenuation sole, and can still provide relatively stable supporting force and relatively good propelling assistance after the foot landing point of a runner moves from the front sole to the middle foot or the heel due to the fact that the pedaling and stretching efficiency is reduced, so that the long-distance running performance of the user is improved, and the sport injury is reduced.
Owner:XTEPCHINA

Screen-touchable collection code and screen protection device

ActiveCN222319546Uguaranteed compactprevent looseningCash registers
The utility model relates to a collection code and screen protection device capable of touching a screen. The collection code and screen protection device comprises a base, a damping rotating shaft, a supporting plate, a rotating piece and the screen. The supporting plate is rotationally connected with the base through a damping rotating shaft; the damping rotating shaft comprises a shaft sleeve, a rotating shaft, a lantern ring and a fixed sleeve; the shaft sleeve is fixedly connected with the supporting plate, and a rotating shaft is arranged in the shaft sleeve and is in interference fit with the shaft sleeve; the rotating shaft is sleeved with a lantern ring, and the lantern ring is in interference fit with the rotating shaft. The lantern ring is sleeved with the fixed sleeve, the fixed sleeve is in interference fit with the lantern ring, and the fixed sleeve is fixedly connected with the base; the screen is rotationally connected with the supporting plate through a rotating piece. The rotating piece comprises a connecting block, a rotating shaft, a connecting rod, a lantern ring and an end cover. The connecting block is fixedly connected with the supporting plate, a rotating shaft is arranged in the connecting block, and the rotating shaft is in interference fit with the connecting block; the rotating shaft is sleeved with a lantern ring, and the lantern ring is in interference fit with the rotating shaft. And the connecting rod is sleeved on the lantern ring.
Owner:HENAN DUOXIN CHUANGLIAN NETWORK INFORMATION SERVICE CO LTD

Distributed reactive power optimization method for high-voltage distribution network based on high-proportion photovoltaic scenario

The present invention discloses a distributed reactive power optimization method for a high-voltage distribution network based on a high-proportion photovoltaic scenario, relates to the technical field of reactive power optimization, and comprises the following steps: obtaining grid data of each photovoltaic inverter in a distributed photovoltaic power generation system and performing preprocessing; constructing a reactive capacity prediction model based on GCNN to obtain reactive power demand prediction values ​​of each photovoltaic inverter; establishing a Volt-Var curve, and calculating the current high-voltage distribution network voltage deviation coefficient in real time to dynamically adjust the step value and adjust the reactive power of each photovoltaic inverter based on the reactive power demand prediction value of each photovoltaic inverter and the adjusted Volt-Var curve using the control strategy of the Volt-Var curve, thereby solving the problem that traditional methods cannot accurately predict the reactive power demand of photovoltaic inverters, and effectively solving the voltage fluctuation problem of the power grid under high photovoltaic penetration, thereby improving the stability and reliability of the power grid.
Owner:XUANCHENG POWER SUPPLY OF ANHUI ELECTRIC POWER CORP