The Experts below are selected from a list of 573177 Experts worldwide ranked by ideXlab platform
Yan Jianfeng - One of the best experts on this subject based on the ideXlab platform.
-
power system transient stability Determination Method
2015Co-Authors: Yu Songtai, Cai Hongquan, Zhang Shuqing, Yu Zhihong, Hua Ke, Yan JianfengAbstract:The invention relates to a power system transient stability Determination Method, and belongs to the field of a power system stabilization analysis and monitoring technology. According to the Method, the dynamic process of a power system is deeply analyzed, a proper Method is used to describe a transient process of the power system in a fault, and a load stability Determination Method of the power system is given. First of all, a state equation of an induction motor is analyzed, through combination with the measurement characteristics of the power system, an induction motor simplified model is brought forward, the dynamic characteristics of an induction motor mold are completely and effectively described, identification of online integrated load model parameters is performed on the simplified model, the state change of an integrated load model in the fault process of the power system is analyzed by taking a Liapunov Method as a basis, and based on this, correlation criteria of critical clearing time and load instability of the power system are given. The Method provided by the invention can rapidly realize parameter identification and stability Determination of the integrated load model of the power system, at the same time, ensures quite high accuracy and reliability, and meets an online application requirement.
Tang Fei - One of the best experts on this subject based on the ideXlab platform.
-
power system transient stability Determination Method based on first order dimensionality reduction phase path
2015Co-Authors: Cen Bingcheng, Liu Dichen, Liao Qingfen, Tang Yuheng, Huang Yong-li, Yan Yang, Tang FeiAbstract:The invention discloses a power system transient stability Determination Method based on first-order dimensionality reduction phase path, and relates to the safe stable operation technology of the power system. The Method is based on the WAMS system, and the dimensionality reduction conversion of the power angle track in the n-dimension power angle space, and the operation track of the multi-computer system can be mapped to be the motion in one point, and the new phase plane can be formed by the motion parameters after the mapping conversion, and then the power system transient stability Determination can be carried out by observing the geometrical characteristics of the tracks in the phase plane, and then the fast and accurate transient stability of the power system can be realized. The power system transient stability Determination Method is advantageous in that the useless elements having the unstability of the power angle in the generators can be removed by the dimensionality reduction conversion, and the grouping is not required, and therefore the wrong Determination caused by the grouping can be prevented, and the transient stability of the system can be determined quickly and effectively.
Kunihiko Nishino - One of the best experts on this subject based on the ideXlab platform.
-
Development of a structure Determination Method using a multidrug-resistance regulator protein as a framework.
Biochemical and biophysical research communications, 2019Co-Authors: Takashi Matsumoto, Ryosuke Nakashima, Akihito Yamano, Kunihiko NishinoAbstract:Abstract The structure Determination of organic compounds is desirable for the development of medicines, aroma chemicals, and agricultural chemicals. However, the crystallization of organic compounds is often troublesome, because crystallization requires a relatively large quantity of high purity compounds and crystallization trials often need to be performed repetitively using different conditions. Some proteins are known to be able to bind to various organic compounds. The multidrug-resistance regulator protein RamR is one such protein. We have developed a structure Determination Method for organic compounds using RamR. RamR bound to organic compounds, including one compound that was not a known ligand for RamR, and the structures of the complexes were successfully determined. Because the RamR crystal is hydrophilic, this Method may be useful for compounds that cannot be handled by the crystalline sponge Method.
Guo Wen-gang - One of the best experts on this subject based on the ideXlab platform.
-
Shape-choice partition and size-Determination Method for the blanks for the drawing of boxes
Journal of Materials Processing Technology, 1995Co-Authors: Yang Yuying, Xing Zhongwen, Guo Wen-gangAbstract:Through experimental comparison and comprehensive analysis of the shape- and size-Determination Method for several box blanks used commonly at present, a set of choice- and size-calculation Methods for the ideal box-blank shapes is assessed. Experimental results show that the choice partition for the given reasonable Method of the shape- and size-Determination of the box blank for two types of blanks cannot only determine the reasonable blank shape conveniently, but also can standardize the choice of the blank shape and the calculation Method of the sizes.
Yu Songtai - One of the best experts on this subject based on the ideXlab platform.
-
power system transient stability Determination Method
2015Co-Authors: Yu Songtai, Cai Hongquan, Zhang Shuqing, Yu Zhihong, Hua Ke, Yan JianfengAbstract:The invention relates to a power system transient stability Determination Method, and belongs to the field of a power system stabilization analysis and monitoring technology. According to the Method, the dynamic process of a power system is deeply analyzed, a proper Method is used to describe a transient process of the power system in a fault, and a load stability Determination Method of the power system is given. First of all, a state equation of an induction motor is analyzed, through combination with the measurement characteristics of the power system, an induction motor simplified model is brought forward, the dynamic characteristics of an induction motor mold are completely and effectively described, identification of online integrated load model parameters is performed on the simplified model, the state change of an integrated load model in the fault process of the power system is analyzed by taking a Liapunov Method as a basis, and based on this, correlation criteria of critical clearing time and load instability of the power system are given. The Method provided by the invention can rapidly realize parameter identification and stability Determination of the integrated load model of the power system, at the same time, ensures quite high accuracy and reliability, and meets an online application requirement.