20results about How to "Solve power problems" patented technology

This invention discloses a valve control device and system for extraction pipelines and its usage method, including a valve drive motor, a valve drive linkage, a trolley, and a track. The valve drive linkage is fixed to the rotational power output shaft of the valve drive motor, and the valve drive motor is fixed to the trolley via a motor frame. The trolley can slide along the track. The trolley drives the valve drive motor to move, and the valve drive linkage controls the valve status of each borehole pipeline. This invention controls the valve drive motor to rotate the valve drive linkage, thereby driving the valve wrench to rotate, achieving valve control of the extraction pipeline. Furthermore, by moving the trolley, the valve drive motor and valve drive linkage are moved and positioned, enabling valve control of multiple extraction pipelines. Compared to previous methods using explosion-proof electric three-way valves and explosion-proof electric check valves, this invention offers advantages such as low cost, small size, light weight, easy installation, no need for significant modifications to the extraction pipelines and valves, and a simple control system.

The application discloses a BWPT system power control method suitable for a variable receiving end of an electric vehicle. The system is composed of a network side and a vehicle side DC bus, a filter capacitor, a bidirectional full-bridge converter, a resonance compensation network, a magnetic coupling mechanism and a sampling and digital control module. The receiving end receiving coil structure is variable, and LCC or S compensation can be adopted. In the forward charging and reverse power feedback mode, the control module is based on the DC side voltage sampling and the power analysis model, and the rated output power is the primary target, and the system driving frequency and the external phase angle are adjusted. The method can realize stable and practical power control under the condition of "fixed primary side and variable secondary side".

This invention discloses an autonomous driving power redundancy system and driving equipment, relating to the field of automotive technology. The system includes: a high-voltage power battery, a first power supply circuit, a second power supply circuit, and a third power supply circuit. The first power supply circuit includes a first DC-DC voltage conversion module, with the high-voltage power battery connected to the first DC-DC voltage conversion module, for supplying power to a first battery and a first load component. The second power supply circuit includes a second DC-DC voltage conversion module, with the high-voltage power battery connected to the second DC-DC voltage conversion module, for supplying power to a second battery and a second load component. The third power supply circuit includes a third DC-DC voltage conversion module and a circuit breaker, with the high-voltage power battery sequentially connected to the third DC-DC voltage conversion module and the circuit breaker, for supplying power to the third battery, a third load component, and part of the second load component. This invention solves the technical problem that existing technologies using a single power supply cannot meet the functional safety requirements of autonomous driving systems.

The present invention provides an uninterruptible power supply comprising: an input configured to be electrically connectable to an AC power supply; an output configured to be electrically connectable to a load; the main branch comprises a rectifier module and an inverter module which are electrically connected between the input end and the output end in sequence; the storage battery branch comprises a power conversion module and a storage battery, and the storage battery branch is configured to be electrically connected to a node between the rectification module and the inversion module; wherein the power conversion module is configured to be capable of bidirectionally transmitting and converting direct current, and comprises the following working modes: a charging mode, in which the power conversion module is configured to enable the alternating current power supply to charge the storage battery under the condition that the increment of the load capacity of the load is lower than a preset threshold value; and in the power supply mode, under the condition that the increment of the load capacity of the load is greater than or equal to the preset threshold value, the power conversion module is configured to convert the direct current output by the storage battery, so that the alternating current power supply cooperatively supplies power to the load.

The application discloses a kind of wind farm multi-objective yaw control methods considering power load comprehensive benefits, belong to wind power generation technical field.The wind farm whole tail flow modeling of yaw state is considered by analyzing tail flow model, the inflow data of each wind turbine in wind farm is determined, and the total power and average life of wind farm are quickly and accurately predicted by combining wind turbine power, thrust coefficient curve and S-N curve of transition section pipe node.Single wind turbine power optimization and wind turbine fatigue life optimization with power constraint are integrated to establish a two-stage multi-objective control optimization system, and by building a Bayesian machine learning network, the optimal yaw combination of each stage is located quickly by using efficient and accurate power and life prediction data.The application can accurately and efficiently provide the optimal yaw strategy considering power load comprehensive benefits according to real-time wind speed data, while meeting the power generation demand of wind farm, the load is maximized to extend the service life of wind turbine.

The invention discloses a capacitor voltage self-balancing method of a three-level dual-active bridge converter. Different from the conventional balance control method, the invention provides an improved switch sequence which realizes the self-balance of the capacitor voltage from the modulation level. In the improved switch sequence, when the polarity of the output voltage of the NPC full bridge is not changed, only a single capacitor is used for energy exchange. The unbalance of the capacitor voltage enables the current of the transformer to be superposed with an asymmetric current component, thereby facilitating the balance of the capacitor voltage. The improved switch sequence does not change the original output voltage characteristics of the NPC full bridge. And meanwhile, additional capacitor voltage balance control is not needed, so that the complexity of a converter control system is greatly reduced, and the robustness of the converter is improved.

The invention discloses an underwater wireless photoelectric integrated information and energy transmission device which comprises a photoelectric transmitting assembly and a photoelectric receiving assembly, and an optical vision guiding module, a wireless communication module and a wireless charging module are integrated on the photoelectric transmitting assembly and the photoelectric receiving assembly respectively. The wireless communication module is arranged in a central optical axis area of the photoelectric transmitting assembly and the photoelectric receiving assembly, and the wireless charging module is arranged on the periphery of the wireless communication module in a surrounding mode. The wireless photoelectric transmitting assembly and the wireless photoelectric receiving assembly are respectively arranged on the resident docking station and the underwater unmanned vehicle, so that light visual guidance of the underwater unmanned vehicle and long-distance low-speed data transmission between the underwater unmanned vehicle and the resident docking station are realized, and the problem of underwater wireless power supply is solved; the underwater residence time of the underwater unmanned vehicle is prolonged; and close-range high-speed data transmission between the unmanned underwater vehicle and the resident docking station is realized.

This invention relates to the technical field of welding equipment, specifically to a steel reinforcement welding device for cast-in-place box girder production, comprising a welding torch, a welding electrode feeding mechanism, and a wind shield. The welding electrode feeding mechanism is located at the front end of the welding torch. The welding electrode feeding mechanism is equipped with a sliding clamp to hold the welding electrode and feed it forward. The wind shield is located at the front end of the welding electrode feeding mechanism so that the end of the welding electrode is located inside the wind shield. The sliding clamp is connected to the power supply of the welding torch. After clamping the welding electrode, it moves the electrode. During welding, the welding electrode can be fed automatically, eliminating the need for manual feeding based on experience as in conventional welding, thus reducing welding difficulty. This also ensures that the end of the welding electrode always completes the arc discharge inside the wind shield, reducing the impact of wind on welding quality.

The application relates to the computer technical field and is particularly applied to a motion control scene in an artificial intelligence system in a production field. A simulation machine actuating cylinder motor power regulation method and system, an electronic device and a storage medium are disclosed, which comprise the following steps: setting basic parameters and establishing a multi-dimensional sensor error correction model; collecting and calibrating multi-source data such as motors, cockpit attitudes, loads, environments and abnormal sounds in real time; calculating real-time power requirements and power adaptation degrees based on a coupling model of operating actions, loads and power; fusing a tensor self-encoder and a gradient boosting tree to perform power deficiency risk prediction and abnormal sound grading early warning; adopting a multi-modal power regulation mechanism according to the prediction and determination results to implement temperature rise, overload and frequent regulation protection; collecting data after regulation to close loop correct the model and perform incremental updating. The scheme suppresses abnormal sound, improves power matching and system stability, and supports rapid adaptation of different types of simulators.

The embodiment of the invention provides a low-side heating gradient utilization system and an operation method, the system comprises a boiler and a steam turbine, and the steam turbine comprises a high-pressure cylinder, an intermediate-pressure cylinder and a low-pressure cylinder which are connected in sequence; the heat supply system comprises a first steam pipeline and a heat supply network heater; the low-side cascade heat supply subsystem comprises a second steam pipeline, and a first shut-off valve, a first check valve and a pressure reducing valve are sequentially arranged on the second steam pipeline in the steam flowing direction. A steam side inlet of the heat exchanger is connected with an outlet of the second steam pipeline; an inlet of the third steam pipeline is connected to a steam side outlet of the heat exchanger, an outlet of the third steam pipeline is connected to the first steam pipeline, and a second check valve and a second shut-off valve are arranged on the third steam pipeline; an inlet of the water side bypass is connected to a heat supply network water return main pipe, an outlet of the water side bypass is connected to a heat supply network water supply main pipe, the water side bypass penetrates through the water side of the heat exchanger, and a flow adjusting device is arranged on the water side bypass.

The invention relates to the technical field of industrial and commercial energy storage system intelligent control, and discloses an industrial and commercial energy storage system intelligent control method and system. And estimating the amplitude and duration of the instantaneous power peak according to a preset equipment power characteristic file to obtain a pre-judged instantaneous power peak parameter. According to the method, the electric quantity state of the energy storage battery can be adjusted in advance, it is ensured that the battery has sufficient power response capacity during pulse load output, and the risks of voltage sag and equipment shutdown caused by insufficient electric quantity are effectively avoided.

This utility model discloses a welding machine with an output power supply, including a welding machine body, which includes a housing assembly and a welding core; electrical connecting wires and a first connecting interface that pass through the housing assembly and are electrically connected to the welding core; the output power supply assembly includes a housing mechanism and a voltage regulator circuit board; a latching member that is movably disposed on the housing mechanism; a second connecting interface and two electrical connecting pieces that pass through the housing mechanism and are electrically connected to the voltage regulator circuit board; and a connecting wire assembly that is detachably electrically connected at both ends to the first and second connecting interfaces. This utility model, by detachably assembling the connecting wire assembly and the output power supply assembly on the outside of the welding machine body, allows the welding machine body to supply power to the output power supply assembly through the connecting wire assembly, effectively solving the problem of how existing welding machines supply power to handheld power tools.

The application discloses a kind of power compensation coordination systems of wind and light power off-grid hydrogen production alkaline electrolytic cell, belong to a kind of electrolytic hydrogen production system, including wind and light power generation unit and alkaline electrolytic cell, alkaline electrolytic cell is connected into DC bus, DC bus is also connected into wind and light power generation unit;Reversible solid oxide fuel cell stack is also connected into DC bus, DC bus is also connected into PLC control unit;Reversible solid oxide fuel cell stack and alkaline electrolytic cell are connected into hydrogen storage and transport device respectively;PLC control unit is used to judge the input state of current alkaline electrolytic cell and reversible solid oxide fuel cell stack by threshold value.Through integrating reversible solid oxide fuel cell stack in system, and by PLC control unit, different system modes are switched according to threshold value judgment, i.e., closed-loop protection system makes alkaline electrolytic cell run without external intervention, solves the problem of mismatching of frequent start-stop and power fluctuation when alkaline electrolytic cell is operated off-grid.

The invention relates to a ship crane integrated with a wind power generation system. A support is rotatably mounted on a base of a crane body, the bottom of the support is rotatably connected with the base through a pivotal bearing, a rotating main arm is rotatably mounted in the support, and a wind power generation assembly is arranged at the free end of the rotating main arm; a counterweight and a master controller are arranged on one side, away from the wind power generation assembly, of the rotating main arm; a rotating seat in the wind power generation assembly is used for installing blades and is fixed to the end of a rotating rod, the blades can be stored in a storage cabin of a rotating main arm, and the end, away from the rotating seat, of the rotating rod is connected with a generator through a gearbox. The wind direction tracking system is located at the top of the support and comprises a sensor and a controller. A strain sensor and a controller in the safety control module are both in signal connection with the master controller. Wind power generation and ship crane functions are integrated, clean energy is provided for the ship, carbon emission is reduced, and adaptability and energy utilization efficiency of the ship under different sea conditions are enhanced.

The invention discloses a non-feed network light storage air conditioning system and a control method thereof. The system comprises a direct current boosting module, a power factor correction (PFC) module, a direct current bus, a first inversion module, a second inversion module, an air conditioning compressor, a photovoltaic module, a direct current load, an alternating current load and an alternating current energy storage module. The DC boost module and the PFC module acquire and share the state information of the photovoltaic module, the load power state information of the first and second inversion modules and the charge state information of the AC energy storage module, and adjust the power of the photovoltaic module and the connection relation with an AC power grid based on the shared state information. Therefore, the electric quantity obtained from the alternating current power grid is reduced to the minimum. According to the invention, the problem of serious insufficient consumption of photovoltaic grid connection can be effectively relieved, and photovoltaic power is prevented from flowing back to the power grid.

The invention discloses a diesel-storage combined power supply system and a coordination control method thereof, and belongs to the technical field of power system control, and the method comprises the steps: obtaining operation state data, and determining the total load power; determining a working mode according to the total load power and a logic threshold value, and distributing the total load power into generator target power and energy storage target power; when the working mode is the energy storage independent power supply mode, a prime motor is stopped, and the output voltage is kept stable by adopting a voltage rotating speed control strategy; and when the working mode is the generator independent power supply mode or the diesel-storage combined power supply mode or the energy storage charging mode, a coordination control strategy is executed, and the output voltage is kept stable through coordination control of the first path and the second path. The problem of coupling of the power and the frequency of the induction generator is effectively solved, and the frequency stability and the dynamic impact resistance of the system are improved.

The utility model relates to the field of inspection robot power supply, concretely relates to a kind of intrinsic safety type inspection robot lithium battery multipath parallel driving walking structure, including four brushless motors connected with four wheels respectively, the brushless motor all adopt intrinsic safety type, battery pack for its separate power supply is equipped on each brushless motor, the intrinsic safety type inspection robot lithium battery multipath parallel driving walking structure, by the parallel power supply mode of intrinsic safety type lithium battery, 4 intrinsic safety type brushless motor driving of intrinsic safety type inspection robot is driven, realize the intrinsic safety driving design of inspection robot, lighten the robot load weight, improve the cruising ability. Parallel driving walking control structure is powered by 5-way intrinsic safety lithium battery, lithium battery is designed as Ex ib I Mb explosion-proof grade, wherein 4-way is respectively powered to four driving wheels, 1-way is powered to control host computer. After parallel connection of each lithium battery, double overcurrent overvoltage charge-discharge protection of ib grade is realized after battery protection circuit.

The utility model discloses a keyboard base and a keyboard based on module expansion, comprising a base body, the base body is divided into an expansion area and a fixed area; a plurality of butt-joint protrusions are arranged on the surface of the expansion area, the butt-joint protrusions are regularly arranged, and each butt-joint protrusion has a preset geometrical shape and size; the expansion area is configured to be used for being in butt joint with expansion modules of various shapes and sizes, the bottom of each expansion module is provided with a butt joint concave base matched with a protrusion combination formed by arranging a plurality of butt joint protrusions, and the expansion modules are detachably fixed to the expansion area. The design of the butt joint protrusions not only provides a unified interface standard for the expansion module, but also ensures accurate matching between the module and the base through optimization of geometrical shapes and sizes. Due to the design of the standardized interface, a user can freely match expansion modules with different shapes and sizes according to requirements, and the compatibility and the application range of the keyboard are remarkably improved.

The application provides a full-rotation steering drilling control system and method, wherein a drill bit is connected with a drill collar, a central control platform and a switch valve are arranged in the drill collar, a push piston is arranged on the inner wall of the drill collar, one end of the switch valve is connected with the central control platform, the other end of the switch valve is communicated with the push piston, the central control platform can rotate with the drill collar or rotate freely relative to the drill collar, the central control platform can drive one end of the switch valve to rotate relative to the other end of the switch valve, so that the switch valve is alternately opened or closed. The attitude acquisition and measurement device and the control system are installed on the central control platform, the relative static non-rotating drilling tool is removed, the measurement control system is separated from the push execution unit, the wing rib push is controlled by using the drilling fluid shunting mode, the number of dynamic seals and movable parts is reduced, the system reliability is improved, the cost is reduced, the communication and power supply problems between the relative rotating drilling tools are solved, the later maintenance is convenient, and the application is safe and reliable and convenient for popularization and application.

The invention discloses a non-feed network light storage air conditioning system and a control method thereof. The system comprises a direct current boosting module, a power factor correction (PFC) module, a direct current bus, a first inversion module, a second inversion module, an air conditioning compressor, a photovoltaic module, a direct current load, an alternating current load and a direct current energy storage module. The alternating-current power grid is connected to one end of the direct-current bus through the PFC module, and the other end of the direct-current bus is connected with the air conditioner compressor through the second inversion module; the photovoltaic assembly is connected to the DC bus through the DC boost module, and the DC bus is connected to the AC load through the first inversion module. The direct-current load is connected to the direct-current bus and the direct-current energy storage module respectively; the DC boost module and the PFC module adjust the power of the photovoltaic module, supply power to the DC energy storage module and control the connection and disconnection with the AC power grid based on the shared state information of the photovoltaic module, the AC / DC load and the energy storage module. According to the invention, the problem of serious insufficient consumption of photovoltaic grid connection can be effectively relieved, and photovoltaic power is prevented from flowing back to the power grid.