4results about How to "Improve dynamic response characteristics" patented technology

This invention relates to the field of flexible DC transmission technology for offshore wind power, and discloses a method and system for collaborative optimization of control parameters of converter stations and wind turbine converters in offshore wind power flexible DC systems. The method includes: constructing an electromagnetic transient simulation model comprising a sending-end converter station, a receiving-end converter station, a DC transmission line, and a wind farm; introducing multiple disturbance conditions and combining variations in control parameters, recording dynamic response process data; establishing a collaborative optimization criterion composed of multiple performance indicators directly mapped from the dynamic response process data; and employing a multi-objective evolutionary optimization mechanism with control parameters as the variables to be optimized and performance indicators as the optimization guide for iterative search. This invention achieves global collaborative configuration of control parameters for converter stations and wind turbine converters, solving the problem of traditional step-by-step tuning methods neglecting dynamic interaction effects, and significantly improving the overall operational robustness of offshore wind power flexible DC systems under multiple disturbance conditions.

The utility model discloses a high -strength power station boiler steel structure engineering installation framework, including power station boiler, support crossbeam I, support stand I, connecting structure, reinforcing structure, support base, operation platform, support crossbeam I is fixedly connected with support stand I, and the overlapping portion of support crossbeam I and support stand I is equipped with connecting structure, and the outer side of connecting structure is equipped with support stand II, and the overlapping portion of connecting structure and support stand II is equipped with triangle reinforcing rib II, and power station boiler sets up in the steel structure frame of the overlapping of support crossbeam I and support stand I, and one side of triangle reinforcing rib I is fixed on support crossbeam I through fastening bolt I, and the other side is fixed on the outer wall of power station boiler, and reinforcing structure is equipped with multiple groups and sets up between two groups of adjacent support crossbeam I, and support base is fixed in the lower part of power station boiler, and operation platform is laid on support crossbeam II, and the stair is equipped between operation platform, and the outside fixed of operation platform has platform support column.

This application discloses a die bonding method, equipment, and process product, relating to the field of semiconductor processing technology. The die bonding method includes transporting a conveyor belt to transport any row of initial labels on the belt to a dispensing station; the conveyor belt array has multiple rows and columns of initial labels; a dispensing module is moved to the dispensing station along a first direction, and the dispensing module is used to position, identify, and dispense each row of initial labels, and to perform dispensing quality inspection; the first direction is parallel to the arrangement direction of each row of initial labels; the conveyor belt is stepped with a preset row spacing to transport the next row of initial labels to the dispensing station, and dispensing is performed on multiple rows and columns of initial labels sequentially; the dispensed labels on the conveyor belt are sequentially subjected to chip bonding, pressing, and curing to obtain finished chip labels. This application replaces the movement of a large inertia platform with a lightweight movement method of the dispensing module, achieving a balance between cost and control accuracy.

This application provides a method and system for regulating the electrode current of a calcium carbide furnace, relating to the technical field of electrode current regulation in calcium carbide furnaces. The method includes: collecting and estimating unmeasurable state parameters of the electrode system online using an extended Kalman filter algorithm based on three-phase current data and the lifting / lowering speed data of the three-phase electrodes; obtaining a three-phase current setpoint; and, based on the deviation between the three-phase current setpoint and the collected three-phase current data, the online identified three-phase coupling coefficient matrix, and the unmeasurable state parameters, performing rolling optimization in the prediction time domain using coupled model predictive control, considering three-phase coupling constraints and system time lag, generating a predictive control quantity for the lifting / lowering speed of the three-phase electrodes; and outputting the predictive control quantity for the lifting / lowering speed of the three-phase electrodes to the electrode lifting / lowering actuator to adjust the electrode position. By employing the above method, the technical effect of improving the accuracy of three-phase current control is achieved.