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73results about How to "Shorten the adjustment cycle" patented technology

Device and method for three-phase unbalance adjustment based on electricity utilization information acquisition system

The invention discloses a device for three-phase unbalance adjustment based on an electricity utilization information acquisition system. The device comprises a plurality of single-phase commutation devices, wherein one of the single-phase commutation devices is installed at a joint of each household electric meter and branch circuit L and a trunk line of a distribution electric meter box; each single-phase commutation device forms a low-voltage three-phase unbalance adjustment system with an acquisition device installed in the distribution electric meter box, a centralizer and a background electricity utilization information acquisition system; each single-phase commutation device is responsible for the adjustment of A, B and C phases of power supplies of each household electric meter andbranch circuit L. The invention further discloses a method for three-phase unbalance adjustment based on the electricity utilization information acquisition system. The device and the method have theeffects of: accumulating electric quantity of each end user, acquiring historical data within a preset time period and preprocessing the historical data, adjusting a three-phase unbalance degree according to the preprocessed historical data, and adjusting a scheme thereof; and the data is reliable, the analysis and calculation method is mature, and the three-phase unbalance degree of the tail endcan be effectively controlled.
Owner:CHUZHOU POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CORP +1

Electric power steering system with multiple driving mode selections for commercial vehicle

ActiveCN111361633AShorten the adjustment cycleMaintain consistency of steering hand forceElectrical steeringElectric power steeringDriver/operator
The invention discloses an electric power steering system with multiple driving mode selections for a commercial vehicle. Light / micro commercial vehicles have light or serious uncomfortable steering hand feeling when driven on different driving road surfaces and other environments, and especially under the conditions of no load and full load, the steering load resistance difference of the vehicleis large, and multiple driving modes are provided to adapt to the difference, so that a driver can select the proper steering control hand force and can meet different driving preferences of differentdrivers. Various power-assisted current characteristic curves taking different rated steering hand forces as targets are designed and developed to correspond to the different driving modes, and the power-assisted current characteristic curves are preset in a basic power-assisted module; and when the driver makes a corresponding driving mode switching instruction in a mode of combining different continuous ignition switch sequences or independently arranged gear knobs and the like in a parking state, an ECU is triggered to start the driving mode selection so as to call the expected power-assisted current characteristic curve.
Owner:DALIAN INNOVATION PARTS MANUFACTURING CO LTD

Method for adjusting bivalent tin ion concentration

The invention relates to the field of surface treatment and electroplating, and specifically relates to a method for adjusting the concentration of bivalent tin ions used for an acidic tin-plating bath solution. The method is characterized in that an electrolyzing method is carried out; a tin anode plate is used as an anode, and a cathode device is used as a cathode, thus forming a tin plating device for electroplating; the cathode device has the electric conducting effect through which the electroplating process can be carried out normally; the cathode device has the property that a tin plating layer is not deposited, so that bivalent tin ions generated by anode electrolyzing can be directly mixed into the bath solution; the cathode device comprises a built-in cathode, an electric conducting wire, an insulation device and an electric conducting solution; an opening in the upper end of the insulation device is exposed from the outer surface, and the electric conducting solution is stored in the insulation device; one end of the built-in cathode is inserted into the electric conducting solution while the other end of the built-in cathode is connected to a power supply through the electric conducting wire. According to the method, the electrolyzing method is adopted, and the special cathode device is arranged, so that the technical problem of difficult preparing and adjusting of the acidic tin-plating bath solution can be solved, the surface quality of a part can be greatly improved, and the preparation and adjusting cycle of the bath solution can be reduced.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

Airplane cargo bridge door locking mechanism

The invention belongs to the field of aircraft structure control and relates to an airplane cargo bridge door locking mechanism which comprises lock assemblies and an actuator cylinder used as a drive unit and also comprises a torque mechanism. The actuator cylinder drives the torque mechanism to rotate. The torque mechanism is connected with several sleeve lock assemblies through bearings. Through the actuator cylinder, an actuator cylinder rocking arm, torque tubes, latch hook pull bars, a transmission support and latch hooks, locking and unlocking functions of the latch hooks are realized, and the structural style of an original airplane cargo bridge door locking mechanism is changed. The airplane cargo bridge door locking mechanism provided by the invention has a concise structure, is convenient to install and adjust, is harmonious and consistent in folding and unfolding, is safe and reliable, and is a novel practical cargo bridge door locking mechanism. The airplane cargo bridge door locking mechanism provided by the invention has advantages of few components, high interchangeability and reliable connection, and adjustment processes are minimized, and adjustment cycle is shortened. According to the invention, transmission movement path of part of the latch hooks is shortened, and accumulated clearance value caused by long transfer path is reduced. Thus, clearance oversize problem in the X direction and Y direction of the cargo bridge door is solved.
Owner:SHAANXI AIRCRAFT CORPORATION

Day-ahead cascade water and electricity combined optimization method and device

The invention relates to the technical field of cascade water and electricity combined optimization, in particular to a day-ahead cascade water and electricity combined optimization method and device.The method comprises the steps of obtaining a first model based on annual adjustment and hydropower station control as target modeling; based on the seasonal regulation hydropower station control target modeling, obtaining a second model; based on daily regulation hydropower station control target modeling, obtaining a third model; and modeling based on the first model, the first model and the first model by taking cascade hydropower station joint optimization control as a target to obtain a fourth model. Carrying out cascade upstream and downstream flow coordination constraint based on a fourth model; performing single hydropower station operation characteristic constraint based on a fourth model; performing cascade hydropower station operation characteristic constraint based on a fourthmodel; and solving the fourth model after the cascade upstream and downstream flow coordination constraint, the single hydropower station operation characteristic constraint and the cascade hydropower station operation characteristic constraint to obtain a cascade hydropower combined optimization scheme.
Owner:NORTHWEST BRANCH OF STATE GRID POWER GRID CO +1
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