Semiconductor Manufacturing International (shanghai) Corporation

Guodian United Power Technology Company Ltd.

General Prospecting Institute of China National Administration of Coal Geology

Yan Ding

Qian Wang

Lei Zhang

Yanping Li

Zhe Jiang

Xiao Zhang

Lei Pan

Jingchun Chu

Ling Yuan

Jindong Pan

Chong Jiao

Degao Zhang

Yonghan Liu

Yinglin Fan

Wen Du

Qiaohui Che

Wenchao Chen

Sitong Song

Song Du

Xuefeng Lin

Amy Wei

Fa Xie

Michael Fang

Provided is a drilling method for a storage well for liquid-gas two-phase combined geological storage, including the following steps: drilling down from a ground to the bottom of a potable aquifer, and installing a first section wellbore; dividing a second section wellbore into multiple segments of second section sub-wellbores, arranging multiple first bases on an inner wall in advance, forming an vent hole in a sidewall of the second section sub-wellbore corresponding to a gas storage layer, and closing a bottom surface of the second section sub-wellbore at the bottom, with a drill-through hole at the center; drilling down to the bottom of the gas storage layer, and installing the second section wellbore; dividing a third section wellbore into multiple segments of third section sub-wellbores, and arranging multiple second bases on an outer wall in advance.

Drilling method for storage well for liquid-gas two-phase combined geological storage

A simulation evaluation model of a high voltage ride through capability includes a wind turbine system aerodynamic model, a torque control model, a converter model, and a high voltage fault generating device model connected in sequence; the wind turbine system aerodynamic model is configured to calculate an airflow input power; the torque control model is configured to calculate a rotor electromagnetic torque according to the airflow input power; the high voltage fault generating device model is configured to simulate a high voltage fault and output a predetermined voltage on a low voltage side of a transformer; and the converter model is configured to calculate a stator reactive current, an active power and a reactive power of the wind turbine system during the high voltage fault according to the airflow input power, the rotor electromagnetic torque and the predetermined voltage on the low voltage side of the transformer.

Simulation evaluation model of high voltage ride through capability, simulation evaluation method based on the same and storage medium

A method for repairing defective memory cells includes receiving an access command having an access address and an access operation. The access address includes a row address and a column address. The method further includes determining whether the row address and the column address are the same as a pre-recorded row address and column address of a defective memory cell. If the row and column addresses of the access address are the same as the respective row and column addresses of the defective memory cell, the method includes replacing the defective memory cell with a redundant memory cell, and executing the access operation using the redundant memory cell.

Method and apparatus for repairing defective memory cells

Growing community of inventors

Beijing, China

Yan Ding