Search

Your search keyword '"Yin, Xianggen"' showing total 564 results
Start Over Author "Yin, Xianggen"
564 results on '"Yin, Xianggen"'

4. Rotor Winding Short Circuit Fault Protection Method of Variable Speed Pumped Storage Unit Based on Stator and Rotor Side Differential Current

Author

He, Rufei, Qiao, Jian, Wang, Wenhui, Yin, Xianggen, Peng, Yumin, Zhang, Hao, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Li, Jian, editor, Xie, Kaigui, editor, Hu, Jianlin, editor, and Yang, Qingxin, editor

Published
2023
Full Text
View/download PDF

36. Calculation method of external fault short-circuit current for variable-speed pumped storage units based on time-domain dynamic circuit.

Author

He, Rufei, Lu, Qinghui, Ma, Yiming, Qiao, Jian, Li, Yongqi, Peng, Yumin, Yin, Xianggen, Li, Yao, Huang, Jiejie, and Okedu, Kenneth E.

Subjects
SHORT-circuit currents, FAULT currents, PUMPED storage power plants, OVERCURRENT protection, CURRENT transformers (Instrument transformer), ON-chip charge pumps, VALUE engineering, VECTOR spaces
Abstract

The calculation method of the external fault short-circuit current of large units with clear mechanisms and practicality is of great value in engineering practice. Due to the special AC excitation structure and control mode, the external fault short-circuit characteristics of variable-speed pumped storage units (VSPSUs) are very different from those of conventional units. Therefore, this paper proposes a calculation method for external fault short-circuit current based on a time-domain dynamic circuit. According to the excitation and control characteristics of VSPSUs under external fault, the VSPSU under external fault is divided into two cases: continuous excitation and jumper action. Based on space vector analysis, the time-domain dynamic circuit models are established, respectively. On this basis, the analytical formula of the external fault short-circuit current of VSPSUs is derived by combining the transition boundary conditions of the two cases and the dynamic characteristics of the stator flux linkage. Finally, the comparison with PSCAD/EMTDC simulation results shows that the proposed VSPSUs' external fault short-circuit current calculation method has high accuracy and practical value, which can meet the needs of primary equipment selection and relay protection of variable-speed pumped storage power plants. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

42. Faulty Phase Selection and Location Method of Rotor Ground Fault for Variable Speed Pumped Storage Generator-Motor

Author

Qiao, Jian, Yin, Xin, Wang, Yikai, Yin, Xianggen, Lu, Qinghui, Zhu, Lingjin, and Zhang, Qichun

Abstract

The rotor winding of variable speed pumped storage generator-motor (VSPSGM) is a special three-phase winding structure, which not only makes the traditional rotor ground fault location method no longer applicable, but also increases the faulty phase selection problem. Therefore, the faulty phase selection and location method of rotor ground fault for VSPSGM is proposed in this article. Firstly, the relationship between the phase characteristics of the rotor winding potential and the working conditions is summarized according to the generation mechanism of the induced potential. The piecewise function is used to accurately analyze the amplitude and phase variation of the winding potential. On this basis, a reliable faulty phase selection method for rotor ground fault is proposed based on phasor trajectory analysis. Furthermore, the optimization model of ground fault location is constructed according to the geometric relationship of neutral point to ground voltage phasor, fault point to ground voltage phasor, and fault winding potential phasor. The accurate position of the ground fault can be obtained by solving the optimization model. This technique has been validated through simulations and experimental tests.

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results