10results about How to "Satisfy operability" patented technology

The invention provides a clearing scheduling method, system, equipment and medium for a pumped storage unit participating in a spot market in consideration of water head influence, and the method comprises the steps: analyzing the actual operation data of a pumped storage power station, and respectively constructing a relation model of the maximum pumping and generated output of the unit and a water head; determining a water head value of the unit in the time period t, and calculating the maximum water pumping output and the maximum power generation output of the unit in the time period t through the relation model; obtaining declaration information that the unit participates in the spot goods electric energy market, making a plurality of constraint conditions by using the calculated maximum output, carrying out spot goods electric energy market clearing operation based on the plurality of constraint conditions and the declaration information, and obtaining an output plan of a t + 1 time period; and performing loop operation to obtain an output plan curve of the unit on the operation day. The method ensures that the output result accords with the actual operation condition of the pumping and storage unit, improves the accuracy of the output calculation result and the clearing optimization result of the unit, and guarantees the execution reliability of the pumping and storage output plan.

The invention relates to the technical field of power grids, in particular to a distributed new energy acceptance capacity dynamic calculation method and system, and the method comprises the steps: constructing a combined small-disturbance dynamic model for distributed new energy access, and obtaining a stable constraint boundary; establishing an optimization model by taking distributed new energy acceptance capacity maximization as a target function; and solving the optimization model by adopting a self-adaptive particle swarm algorithm to obtain the maximum acceptance capacity of the distributed new energy in the current operation state of the power distribution network. According to the invention, based on the equivalent dynamic model of the network-forming inverter and the state-space equation of the power distribution network, the combined small-disturbance dynamic model is constructed and the stability analysis is carried out, the stability constraint is directly introduced into the acceptance capacity optimization, and the adaptive particle swarm algorithm is adopted for solving, so that the maximum access capacity of the distributed new energy can be accurately evaluated. Meanwhile, small-interference stability of the system and operation constraints of the power distribution network are considered, and calculation precision, efficiency and engineering application value are improved.

The utility model belongs to the technical field of window opener, concretely relates to a hand -operated power box for window opener, including window frame, be provided with hinged link on the window frame, the lower extreme of hinged link is provided with base, be provided with box body on the window frame, be provided with connecting seat on the box body, the side that is away from the box body of connecting seat is provided with fixed base, the inside of connecting seat and fixed base is provided with rotating link, the side that is close to each other of rotating link is fixedly connected with driven tooth, the inside rotation of box body is connected with the shaft. The utility model discloses hand -operated power box structure is small and exquisite, can be installed directly on the door and window, save the space, and transmission structure hides in the inside of box body, avoids the damage, prolongs the life, adopts hexagonal ratchet wrench manual drive, and the operation is simple and laborsaving, can rotate transmission power in the small amplitude range, improves operating efficiency, satisfies the demand of user to convenient operation and equipment durable.

The utility model discloses a quick detachable sealing structure, including sealing bolt, sealing ring and sealing groove, sealing bolt has head and screw rod part, and screw rod part is suitable for screw hole, and sealing ring is sleeved on the screw rod part of sealing bolt. The quick detachable sealing structure is through the sealing bolt is spun into screw hole, and the head lower end surface will extrude sealing ring, makes it fill the gap between lower end surface and sealing groove and microcosmic uneven place fully, forms the dead angle -free sealed interface, and sealing ring is sleeved on the outer periphery of screw rod part, can form the auxiliary seal with screw hole entrance hole wall simultaneously, double -guarantee blocks the helium gas leakage path, avoids the sealing failure problem caused by traditional sealant partial check crack, quick plug connector sealing ring misplacement, utilizes the static seal of sealing ring under the pressure deformation of end face, and the sealing effect is excellent, only needs to tighten or loosen sealing bolt and can realize the sealing or disassembly, and the disassembly process does not need the violent operation, and the tool body thread or sealing element itself will not be damaged.

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 utility model relates to the technical field of CNC machine tools and automated machining equipment, and in particular to a 90° tool holder flipping mechanism, comprising: a chain link; a tool mechanism including a rotating block, a tool holder disposed at one end of the rotating block and a sliding component at the other end, a rotating shaft rotatably connected to the rotating block, and the rotating shaft rotatably connected to the chain link; a driving mechanism including a driving component and a tool-reversing block connected to the output end of the driving component; the tool-reversing block has a tool-reversing edge, the sliding component is accommodated in the tool-reversing edge, the driving component pushes and pulls the tool-reversing block, the tool-reversing block pushes and pulls the sliding component, and drives the tool holder to rotate around the rotating shaft. This utility model connects the tool-reversing block to the output end of the driving component, and the action of pushing the tool-reversing block is transmitted to the sliding component, causing the rotating shaft to rotate, driving the tool holder to flip smoothly and stably around the rotating shaft. The tool holder can perform a precise 90° flip when needed, optimizing the tool management process and meeting the higher requirements of modern CNC equipment for operational speed and precision.

The application discloses a kind of multi-physical field experimental devices for strong magnetic field, it is related to strong magnetic field technical field, including bearing assembly, pneumatic stirring assembly, reaction bottle fixing assembly and photo-thermal liquid bath component;Bearing assembly includes bearing frame and lifting mechanism, pneumatic stirring assembly includes air supply equipment, flexible air pipe, turbine, planetary reducer and stirring paddle, reaction bottle fixing assembly includes fixed frame structure and reaction bottle, photo-thermal liquid bath component includes outer bushing, heat equalizing cylinder, heating film, quartz window, light source and radiator.The application has the advantages that the reaction area can be accurately adjusted to the target magnetic field strength and magnetic field gradient position by precise positioning and lifting, and the illumination, heating and stirring can be cooperatively loaded and relatively independently controlled in the local reaction bottle, so as to meet the stable operation and rapid sampling requirements of multi-physical field reaction experiment under strong magnetic field extreme environment.

The utility model relates to a surgical device with a flushing function, which comprises a base and an upper shell arranged above the base, openings are reserved on the front sides of the base and the upper shell, a front shell is connected to the openings, a control panel and a power module connected with the control panel are arranged on the base, and a power jack connected with the power module is arranged on the rear side of the base. A flushing module connected with the control panel and the power module is arranged in the base, flushing is achieved through the flushing module, and the base is connected with a connecting female seat connected with the control panel and connected with an endoscope handle through the connecting female seat. By arranging the punching module on the surgical device, multiple purposes are achieved, the problems of operation complexity and compatibility caused by traditional equipment are effectively solved, the surgical efficiency is improved, the equipment cost is reduced, and the space utilization rate and the overall operation experience of an operating room are optimized. The washing module and the control panel are separated through the separating plate arranged on the base, the washing module is prevented from leaking water to damage other modules, maintenance is convenient, and the dual purposes of surgical operation and cleaning are achieved.

The invention relates to the technical field of skid-mounted transformer substations, in particular to a skid-mounted transformer substation based on an intelligent power distribution network, and solves the problems that when an existing skid-mounted transformer substation is applied, a used insulating medium cannot continuously keep pure quality, and positive voltage insulation treatment is inconvenient to carry out on the transformer substation through the insulating medium. Comprising a box type protection mechanism, an insulation regulation and control mechanism is installed on the inner side of one end of the box type protection mechanism, the insulation regulation and control mechanism comprises an insulation gas conveying module, a backflow heat dissipation module is installed on the inner side of the insulation gas conveying module, and a circulation purification module is installed on one side of the backflow heat dissipation module. The backflow heat dissipation module comprises a heat dissipation box, and a condenser is fixedly installed at the bottom end of the heat dissipation box. Through the backflow heat dissipation module and the circulating purification module, circulating conveying and processing of insulating gas are facilitated, and insulating operation of a transformer substation in the protection box and the quality of the insulating gas are kept.