25results about How to "Reduce output power" patented technology

The application discloses an integrated steel casing sinking device and a use method thereof, and the device comprises a spiral drill rod, a motion isolation unit, an elastic centering unit and the like. The outer wall of the spiral drill rod is provided with paddle-shaped blades capable of continuously rotating and ascending. The motion isolation unit comprises a positioning assembly, a positioning base body, a clamping groove arranged on the wall of the steel casing, and a clamping unit. The elastic centering unit comprises an abutting wheel, a rotating connecting block, a sliding telescopic rod, a centering spring sleeved on the outer wall of the sliding telescopic rod, a tail limiting groove and a drilling condition sensing unit. The spiral drill rod is used as a pile driving bit, so that the technical effect of excavating soil layers is achieved, and the paddle-shaped blades capable of spirally ascending are simultaneously used to automatically transport the excavated soil upwards. In addition, the motion state of the bit is isolated by using the motion isolation device, so that the motion isolation between the steel casing and the spiral drill rod rotating in the middle is achieved as a whole, and the rotation of the steel casing caused by the motion of the spiral drill rod is effectively blocked.

This invention relates to the field of metallurgical machinery and equipment and metal processing, specifically to an anode steel claw straightening machine and its method; it includes a C-shaped straightening frame, a main hydraulic cylinder, an ultrasonic indenter with a built-in ultrasonic transducer, an antagonistic hydraulic compensation blind cavity, and an industrial control computer; the system connects the antagonistic hydraulic compensation blind cavity located on the back side of the vertical column with the oil inlet of the rodless chamber of the main hydraulic cylinder; its core is that when the main hydraulic cylinder pushes, the expansion trend generated synchronously by the blind cavity is used to apply a reverse prestress bending moment to the vertical column; this invention effectively counteracts the elastic backward tilting deformation of the frame caused by the reaction force of the main thrust, prevents the amplification of the displacement deviation at the execution end, and thus ensures a tight fit between the ultrasonic indenter and the surface of the anode steel claw.

The embodiment of the invention provides a power distribution method and device for an aircraft alternating-current high-power load, computer equipment and a medium, and the method comprises the following steps: obtaining the number of alternating-current channels of an aircraft, obtaining the alternating-current channel of each aircraft and all access loads in the load of an aircraft carrying system, and classifying the access loads; if the load is a long-time stable high-power load or a high-frequency pulse high-power load, the corresponding access load is averagely distributed to each alternating current channel, and if the load is an intermittent high-power load, the corresponding access load is distributed to an aerial carrier system load; and obtaining the maximum total power utilization power of the alternating current channel of each airplane and the load of the aerial carrier system, calculating the residual power utilization power, and sequentially distributing the access loads of which the load types are other loads to the alternating current channel of each airplane or the load of the aerial carrier system according to the residual power utilization power and the power utilization power of the other loads. According to the scheme, the problem of power supply system faults caused by overlarge load power is solved.

The invention discloses a super capacitor and lithium ion battery hybrid energy storage frequency modulation system and a control method thereof, and belongs to the technical field of power system frequency modulation control. The super capacitor energy storage system and the lithium ion battery energy storage system are connected to the energy storage high-voltage alternating current bus through respective bidirectional converters and boosting transformers; the output end of the power synthesis device is connected to an RTU interface of a power grid dispatching system through a boosting transformer. The coordination controller is in bidirectional communication with the super capacitor CMS, the lithium ion battery BMS, the bidirectional converter PCS, the power synthesis device and the power grid dispatching system through the communication interface module, the fire fighting system, the video monitoring system and the heating and ventilation system are connected to an auxiliary monitoring channel of the coordination controller, and the prefabricated cabin provides a physical integration platform for all subsystems. According to the invention, through cooperative control of the super capacitor and the lithium ion battery, power output is dynamically distributed in a power grid frequency modulation instruction direction and a system state, and dual objectives of quick response and energy optimization are realized.

The application discloses a floating diving offshore platform, which comprises a base, a buoyancy unit, a floating diving unit, a mooring unit and a device box. The base is a net-shaped structure formed by the cross connection of multiple ropes. The buoyancy unit and the floating diving unit are fixedly connected above the base. The mooring unit is arranged around the base and connected with the floating diving unit. The floating diving unit and the mooring unit jointly act on the base to realize the floating and diving of the base. The device box for loading functional devices is detachably connected inside the base. The floating diving offshore platform can resist deep sea harsh sea conditions, has device arrangement and personnel activity space, reduces construction cost and solves the problem of difficult device replacement.

This invention belongs to the field of photovoltaic panel cleaning technology, specifically relating to an intelligent cleaning device and method suitable for large-angle flexible photovoltaic roofs. The intelligent cleaning device for large-angle flexible photovoltaic roofs includes an anchoring and traction system and a cleaning robot body. The anchoring and traction system includes a winch assembly installed on the roof, a composite cable connected to the winch assembly, and a central control unit. The composite cable integrates a traction rope, a power supply cable, and a water supply hose. The cleaning robot body is connected to the winch assembly via the composite cable and includes a walking and adsorption mechanism, an intelligent adsorption pressure control system, and a cleaning mechanism. The walking and adsorption mechanism is a tracked vacuum suction cup composite walking mechanism. The intelligent cleaning device for large-angle flexible photovoltaic roofs of this application enables safe, stable, and efficient fully automated cleaning operations on the surface of large-angle, flexible photovoltaic panels using the cleaning robot body.

This invention discloses a simulation method for a real-size mesh channel reverse electrodialysis power generation process, comprising the following steps: S1, simplifying the real mesh channel into a two-dimensional zigzag circular mesh using the flow resistance method, and calculating the equivalent radius of the two-dimensional mesh according to the area equivalence principle; S2, selecting the smallest periodic unit membrane pair for modeling on the x-y plane, dividing the mesh, and setting membrane and solution properties, operating parameters, and boundary conditions; S3, extending the multiphysics field changes to the entire membrane pair height using the boundary coupling method; S4, calculating the membrane-side diffusion boundary layer thickness and potential abrupt change, solving for the resistance of each part of the system, and evaluating the impact of concentration polarization and ion short-circuit current on the output power. The real-size mesh channel reverse electrodialysis power generation process simulation method disclosed in this invention achieves the continuity of multiphysics field changes in the entire flow channel from the membrane pair inlet to the outlet through the boundary coupling method.

The utility model relates to a modular leisure chair, which is characterized in that a seat frame, a backrest frame, armrest frames and back ear frames are respectively arranged in a modular seat cushion, a backrest, armrests and back ears of the chair, the backrest frame and the armrest frames are detachably arranged on the seat frame, and the back ear frames are detachably arranged on two sides of the backrest frame; a mounting seat is fixedly arranged at the lower part of the backrest frame, an air rod is arranged in the accommodating space, the output end of the air rod is connected with the connecting iron pipe, and the other end of the air rod is connected with the mounting seat; the air rod can act on the connecting iron pipe to drive the connecting piece assembly to act, so that the rear connecting iron piece is driven to rotate, the backrest frame can rotate by a certain angle to fall backwards, and the foot stool rotates by a certain angle to turn upwards. According to the scheme, the seat cushion, the backrest, the armrests and the back lugs in the seat are detachably connected and are convenient to disassemble and assemble, the loading quantity can be increased, transportation is facilitated, and the transportation cost is reduced; and a motor in the seat is replaced by the air rod, so that the manufacturing cost is saved.

The invention discloses a multi-parameter linkage controllable fire point simulation device for fire-fighting training and a control method. The device comprises a physical execution system, an environment sensing system and an intelligent central controller. The physical execution system simulates fire scene environment characteristics, the environment sensing system collects device operation states and environment parameters in real time, and the intelligent central controller is connected with the physical execution system and the environment sensing system to achieve multi-parameter cooperative linkage control. The intelligent central controller has the functions of data processing, instruction analysis and linkage control, receives an external control instruction, analyzes the instruction into specific operation parameters of the physical execution system, and dynamically adjusts the operation state of each module through a preset algorithm according to the feedback data of the environment sensing system, thereby completing the synergistic linkage of flame lighting effect, smoke and airflow. And the system has abnormal alarm and protection functions. The preset algorithm constructs a closed-loop adjustment model based on monitoring data and preset parameters, and the adjustment amount is deduced in a sub-module manner and is cooperatively corrected in a linkage manner. And actual combat requirements of modern fire-fighting training are met.

The application discloses a high-frequency sample fusion machine protection device and a control method thereof, and belongs to the technical field of high-frequency sample fusion machines. The device comprises a high-frequency sample fusion machine, a water cooling device, a temperature detection module and a controller. The coil of the high-frequency sample fusion machine is electrically connected with a power module, and the water cooling device cools the coil and the power module through independent pipelines respectively. The temperature detection module is attached to the coil return water pipe and detects the cooling water temperature in real time and transmits the temperature to the controller. The real-time temperature is acquired by the controller, and when the temperature is higher than a preset safety temperature threshold, the controller controls the power module to be closed or the output power to be reduced. Through real-time temperature monitoring and power linkage control, the application solves the problem that the coil is damaged due to high temperature caused by cooling failure and personnel are scalded by vaporized cooling water in the prior art. The automatic protection can be realized without manual intervention, the service life of the coil is effectively prolonged, and the operation stability and safety of the high-frequency sample fusion machine are improved.

A hybrid power supply system of diesel multiple unit is disclosed. When a train is running, an energy management module sends a level signal of a master controller of the train to an inverter, and the inverter, according to the received level signal of the master controller and the dynamic performance of the hybrid power supply system, sets an envelope curve of train speed vs. traction force and an envelope curve of train speed vs. regenerative braking force to control a traction motor to output the corresponding torque. Further, the inverter, according to the voltage and current values acquired at the input end, calculates and sends a current actual demanded power to the energy management module, the energy management module, according to the current available power of a supercapacitor, calculates a required output power and sends a command of the required output power to a rectifier, and the rectifier, according to the command of the energy management module, controls the internal electric power pack to output corresponding power. The system is simple in structure and reliable in control, and can increase the dynamic performance of the train and improve the transportation capability of the train. A hybrid power supply method for a diesel multiple unit is also disclosed.

This invention relates to the field of intelligent lighting and energy-saving control technology, and discloses an energy-saving LED intelligent lighting device based on ambient light sensing, including a lamp body and an LED light-emitting module disposed therein. The LED light-emitting module includes at least three groups of LED light-emitting chips with different spectral characteristics; it also includes an ambient light sensing module, a human behavior sensing module, a power consumption detection module, a dimming drive module, and a processing module. The processing module generates target visual illuminance parameters based on ambient illuminance information, user behavior status, and historical light consumption data, and establishes a lighting output model based on the illuminance contribution characteristics of each group of chips; the power consumption detection module provides real-time feedback of operating parameters to form a closed loop; the processing module compares dynamically optimized power consumption with a fixed ratio benchmark power consumption to generate energy-saving quantification and carbon emission reduction data. This invention achieves real-time optimal control of system energy consumption while meeting both visual and non-visual lighting needs.

The application provides a reverse current prevention method and device of a photovoltaic power supply system, a terminal and a storage medium. The method comprises the following steps: acquiring electric energy data of a low-voltage power grid in real time; subtracting the electric energy data at a previous moment from the electric energy data at a current moment to obtain an electric energy difference; if the electric energy difference is greater than a first preset threshold, adjusting a photovoltaic inverter based on the electric energy difference to reduce the output power of the photovoltaic inverter; if the electric energy difference is greater than a second preset threshold, controlling the photovoltaic inverter to stop; and if the electric energy difference is greater than a third preset threshold, controlling a contactor to be disconnected. The first preset threshold is smaller than the second preset threshold, and the second preset threshold is smaller than the third preset threshold. Through the above scheme, the application can perform hierarchical reverse current prevention control according to the size of a local load surge, thereby improving the reverse current prevention response speed and guaranteeing the interests of photovoltaic power generation users.

The application discloses a battery car leasing system capable of realizing identity authentication and remote management and control, and relates to the technical field of battery car leasing. The system comprises a cloud platform, a user terminal and a vehicle-mounted terminal. The vehicle-mounted terminal comprises a multi-modal acquisition module, a fusion authentication module and an accident sensing and response module. The multi-modal acquisition module acquires fingerprint, palm vein, facial feature fragments, riding posture data and PPG physiological signals. The fusion authentication module performs probability fusion on time-synchronized multi-source feature fragments, and outputs a continuous identity confidence. When the identity confidence is lower than a threshold, gradual driving right recovery is performed. The accident sensing and response module performs time alignment on heart rate variability mutation, grip attenuation and impact characteristics, calculates a response level index and determines an accident level, and generates a local active guardian instruction. The application realizes continuous identity authentication in the whole riding process and accurate accident grading response based on physiological and physical joint modeling, and improves the safety and reliability of the system.

This invention discloses an aerodynamic design method for a biomimetic tower-type wind turbine, comprising: 1) using 3D modeling software to biomimeticly model the geometric shape of the wind turbine tower and determine its dimensions; 2) employing numerical simulation to study the aerodynamic characteristics of the biomimetic tower and cylindrical tower; 3) 3D printing the tower model with uniformly distributed pressure measurement holes; 4) arranging a wind tunnel testing device; 5) using wind tunnel testing to collect data and study the aerodynamic characteristics of the biomimetic tower and cylindrical tower; 6) using 3D modeling software to model the wind turbine blades, hub, and nacelle, and applying the designed biomimetic tower combined with rotating blades to a horizontal axis wind turbine; 7) employing numerical simulation to compare the simulation results of the biomimetic tower-type wind turbine and the cylindrical tower-type wind turbine. This invention directly addresses the tower shape design, with simple and efficient optimization steps, and exhibits good drag reduction, vibration suppression, and wake improvement effects, thereby increasing the wind turbine's output power.

To address the issue of extreme operating conditions such as deep charging and discharging that energy storage batteries are prone to encounter when rapidly responding to grid or load disturbances, a photovoltaic-hydrogen storage DC microgrid system with maximum output power was designed. This system comprises photovoltaic cells, proton exchange membrane fuel cells, an electrolyzer, energy storage batteries, and a hydrogen storage tank. A bidirectional adaptive weighting factor power allocation strategy was proposed, which integrates the state of charge (SOC) of the energy storage batteries and the SOC of the hydrogen storage tank. High and low thresholds for the SOC of the energy storage units were set, and the power allocation weighting factor was calculated based on their SOC values ​​to dynamically allocate the power load between the energy storage batteries and the electrolyzer. During operation, considering both SOC and SOC, the 750V rated bus voltage fluctuation was less than 1.6%, and the SOC of the energy storage batteries remained within a reasonable operating range of 30% to 70%, without exhibiting extreme operating conditions under rapid grid and load disturbances. This achieved adaptive power allocation for the photovoltaic-hydrogen storage DC microgrid system, improving operational reliability.

The utility model discloses a kind of double-cycle water cooling devices for ship propulsion motor, a kind of double-cycle water cooling devices for ship propulsion motor, including double-cycle cooling assembly, the double-cycle cooling assembly including outer water inlet valve, heat exchanger, circulating water pump, expansion water tank and cooling liquid inlet valve, water inlet, water outlet, cooling liquid inlet and cooling liquid outlet are set on heat exchanger, after forming outer circulation channel between water inlet and water outlet on heat exchanger with the series connection of outer water inlet valve, after forming internal circulation cooling loop between cooling liquid inlet and cooling liquid outlet on heat exchanger with the series connection of circulating water pump, expansion water tank, cooling liquid inlet valve and ship propulsion motor, it is characterized by: in double-cycle cooling assembly is installed in a box, it has certain protection level, can reduce the damage caused by the adverse environment of engine room to internal equipment, device, and integrated degree is high, modularization, save installation space.

The utility model provides a kind of continuous fiber laser, it is related to laser technical field.Fiber laser includes few-mode laser oscillation cavity, pump source mode filter and first cladding light filter;Pump source injects pump light to few-mode laser oscillation cavity;Few-mode laser oscillation cavity converts received pump light into signal light, and output to mode filter, mode filter filters high-order mode in signal light into optical fiber cladding, and fiber core is only for single fundamental mode signal light to pass;First cladding light filter peels high-order mode light and residual pump light.The utility model provides fiber laser, by few-mode laser oscillation cavity, reverse pump light is converted into signal light, and signal light is transmitted to mode filter, mode filter can filter out high-order mode in signal light except fundamental mode, realize single-mode laser output, and first cladding light filter is set in the output end of fiber laser, can guarantee that only fundamental mode is included in signal light output by fiber laser.

The invention discloses a hybrid energy storage system, a cluster and a power supply control method. The hybrid energy storage system comprises a new energy power generation device, a traditional energy power generation device, an energy storage device, a dual-power change-over switch, an energy storage converter and an energy management device. The energy management device is connected with the new energy power generation device, the traditional energy power generation device, the energy storage device, the dual-power change-over switch and the energy storage converter. An input interface of the dual-power change-over switch is connected with the traditional energy power generation equipment and is also used for being connected with a power grid; an output interface of the dual-power change-over switch is connected with a first input interface of the energy storage converter; the new energy power generation equipment is connected with a second input interface of the energy storage converter; the energy storage equipment is connected with a third input interface of the energy storage converter; the output end of the energy storage converter is used for being connected with a load. The power supply requirement can be met under different load conditions, and the influence of power supply fluctuation is reduced.

The invention discloses a coordination control method for a multi-machine parallel system of an energy storage inverter of a water-based sodium-ion battery. The method comprises the following steps: estimating the state of charge (SOC) of an energy storage module; calculating the average value of the SOC; calculating a difference value between the current state of charge (SOC) of each energy storage module and the obtained SOC average value, and calculating a balance coefficient of each energy storage module in combination with a deviation adjustment coefficient; calculating the given active power of each energy storage module, and carrying out the balance adjustment of the output of the corresponding energy storage module through the given active power. According to the method, the problems that a unit with high SOC continuously discharges at high power and a unit with low SOC prematurely quits operation due to traditional VSG control or droop control are solved, simulation display shows that after SOC equalization is added, the SOC of each energy storage unit gradually approaches, the initial module with high SOC descends faster, the module with low SOC descends slower, equalization is finally realized, and compared with traditional control, the method has the advantages that the control efficiency is improved, and the cost is reduced. And the service life and the stability of the whole system can be improved.

The present application relates to a kind of active suspension mechanism, system and vehicle, the active suspension mechanism described above includes detection device, control device, driving device, transmission device and linkage device;Wherein, detection device can detect the acceleration and angular acceleration of the vertical motion of vehicle body, and send motion parameters to control device, control device judges and outputs corresponding control instruction to driving device, driving device is arranged parallel to frame, can output vertical direction rotation, transmission device can convert vertical direction rotation into horizontal direction linear motion, and accelerate motion to increase output thrust, simultaneously drive linkage device to do vertical motion, since linkage device is connected with wheel, thus can realize the linear motion of wheel in vertical direction, at this time, driving device can simultaneously realize suspension spring function and damper two functions.

The present application relates to a kind of welding detection methods of lithium ion battery sealing nail, comprising the following steps: S1, after being assembled with glue nail, it is assembled with battery cover plate injection port;S2, the trajectory of the nail of sealing nail is compared and judged by CCD system, the data result of the photo obtained is calculated by the calculation software in system, obtains welding trajectory and transmits welding trajectory instruction to laser welding equipment;S3, pre-point welding and full welding are carried out to sealing nail by laser welding equipment;S4, sealing nail is tested by pressing;S5, quality side leakage detection is carried out to the battery of welded sealing nail by helium system, also provide a kind of welding detection device of lithium ion battery sealing nail, sealing nail is pushed into containing cavity after being adsorbed by adsorption component, glue dispensing machine is glued to sealing nail in the process of sealing nail being lowered by cutting knife, cutting knife is glued to glue nail at the same time after being cut to glue nail, improve work efficiency.

The invention relates to the technical field of data processing, in particular to a Rankine type Carnot battery dynamic self-adaptive control method and system, and the method comprises the steps: obtaining the temperature state data of a heat storage unit of a Rankine type Carnot battery, the operation parameter data of a working medium circulation loop, and the energy demand data of a load side, judging the current operation mode of the Rankine type Carnot battery; according to the judged current operation mode, key operation parameters in the working medium circulation loop are subjected to self-adaptive adjustment; when the heat pump energy charging mode and the Rankine energy discharging mode need to be switched, the mode soft switching operation is executed; monitoring an abnormal working condition in a system operation process in real time, executing a corresponding safety protection operation when the abnormal working condition is identified, and adjusting the system to a normal operation state according to a preset recovery strategy after the abnormity is eliminated; according to the invention, the stability, efficiency and safety of system operation can be improved.

The application relates to a four-wheel drive electric wheelchair all-terrain adaptive system, belonging to the technical field of electric wheelchairs, which comprises a control module and a wheelchair body, wherein the wheelchair body comprises a wheel module and a sensing module which are electrically connected with the control module; the direction in which the occupant of the wheelchair body faces is the front, the wheel module comprises two front wheels arranged at the front of the wheelchair and two rear wheels arranged at the rear of the wheelchair, the two front wheels and the two rear wheels each comprise a driving motor, and a plurality of driving motors are electrically connected with the control module; the sensing module comprises four sensing sub-modules, the four sensing sub-modules are arranged on the two front wheels and the two rear wheels, any sensing sub-module is used for monitoring the bearing pressure of the wheel and transmitting the bearing pressure data to the control module, and the control module instructs the corresponding driving motor of the remaining wheels to increase the output power when one of the bearing pressure data is lower than a threshold.

The present application belongs to the field of DC charger control, and particularly relates to a group control charger system and a control method. The present application is provided with a charging module containing several power groups and bridge connection contactors connecting each power group in the charging module with the DC bus corresponding to the charging module, and distinguishes the host and the slave borrowed power corresponding to the same charging module through the charging controller, controls the bridge connection contactor of the host power group and the slave available power group to be closed, so that the host can borrow the power of the slave to output, without calculating and distributing the power, so as to simplify the control process; and when the power is borrowed, the bridge connection contactors of the power group corresponding to the host and all the available power groups corresponding to the slaves are controlled to be closed first, and when the borrowed power exceeds the charging demand, the bridge connection contactors of part of the slave power groups are disconnected, so that the control process is simple, and the cost of realizing the control effect that the output power can meet the demand and no power waste is generated is saved.