State Grid Jiangsu Electric Power Company

Southeast University

State Grid Corporation of China

State Grid Jiangsu Electric Power Company Research Institute

State Grid Jiangsu Electric Power Co., Ltd. Marketing Center

Zhixin Li

Qifeng Huang

Shihai Yang

Xiao Chen

Gang Chen

Qiang Zhou

Feng Wang

Jijun Yin

Bin Yang

Shuangshuang Zhao

Minrui Xu

Wenguang Chen

Qingshan Xu

Shufeng Lu

Haowei Zhang

Mingfeng Xue

Lingying Huang

Zhenyu Chen

Haifeng Li

Xiao Lu

Lin Liu

Bo Li

Mingming Chen

Qing Xu

Xiaodong Cao

Yaohong Li

Guofang Xia

Yefeng Jiang

Siyun Wang

Yongxian Yi

Zhongdong Wang

Zuofeng Li

Kaijie Fang

Yixuan Huang

Tianchang Liu

Hanmiao Cheng

Yuqin Chen

Huiling Su

Xiaoquan Lu

Feng Ye

Provided are a heat shield and a Josephson junction array chip system, the heat shield includes a cryostat, a sensor group, a radiation shield plate, a clamp assembly, and a vacuum shield cover assembly; the cryostat includes a cold head, a first-stage chassis, and a second-stage chassis; the vacuum shield cover assembly includes a first vacuum shield cover, a second vacuum shield cover, and a heat shield aluminum oxide layer; and the cold head is located in the first vacuum shield cover; and the heat shield aluminum oxide layer is coated on a surface of at least one of the first vacuum shield cover or the second vacuum shield cover; the clamp assembly on the radiation shield plate is configured to fix the Josephson junction array chip; and the sensor group adjacent to the Josephson junction array chip is arranged on the radiation shield plate.

Heat shield and Josephson junction array chip system

Provided is a live measurement method for three-winding transformer loss based on windowed frequency shift. The method includes: stepproviding an improved live calculation equation of a three-winding transformer loss; stepprocessing a collected x(t) signal by windowed frequency shift calculation; stepsolving an amplitude and a phase of the collected x(t) signal via discrete Fourier transform of a frequency shift signal; and stepcalculating a no-load loss and a load loss of a three-winding transformer.

Live measurement method for three-winding transformer loss based on windowed frequency shift

Provided is a user side load response method based on adjustment and control on temperature of load clusters. The user side load response method includes: performing thermodynamic modeling on a temperature control load to obtain a temperature control model in direct load control; constructing a mapping quantity to describe the change state of a temperature control load relay switch; obtaining adjustable capacity of the temperature control load through the mapping quantity; introducing temperature control load clusters to solve the problem that control precision cannot satisfy condition requirements; and finally calculating the influence of each load cluster in different load cluster control schemes on comfort degree.

User side load response method based on adjustment and control on temperature of load clusters

Provided is a power grid adjustment method based on a load of a variable frequency air conditioner. The method includes: establishing a mathematical simulation model of a virtual synchronous motor in a variable frequency air conditioner controller; establishing a virtual inertia control segment and a droop control segment of power grid adjustment according to the mathematical simulation model; obtaining a reference value &#x394;&#x3c9; of rotation speed variation of a compressor by the virtual inertia control segment; obtaining a reference value &#x3c9;of rotational angular frequency of the compressor by the droop control segment; and inputting a sum of the reference value &#x3c9;of rotational angular frequency of the compressor and the reference value &#x394;&#x3c9; of rotation speed variation of the compressor into a field-oriented controller (FOC) to control rotation of a motor.

Power grid adjustment method based on loads of variable frequency air conditioner

Growing community of inventors

Jiangsu, China

Zhixin Li