Wenrui Dai
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Wenrui Dai has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Haibo Zhang
Institute of Standard Metrology, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
1 shared publication - Like Pan
Standards & Metrology Research Institute, China Academy of Railway Sciences Co., Ltd., Beijing 100015, China
1 shared publication - Tong Xing
Standards & Metrology Research Institute, China Academy of Railway Sciences Co., Ltd., Beijing 100015, China
1 shared publication - Yingxin Zhao
Standards & Metrology Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100015, China
1 shared publication - Zhanhao Dong
School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611730, China
1 shared publication
Latest Publications
- Open Access
Research on Reliability Improvement Method of Mountainous Power Grid Considering Electrified Railways Access
The mountainous power grids exhibit significantly lower reliability compared to conventional urban grids due to inherent structural weaknesses, dispersed load distribution, and higher failure probabilities of power supply equipment. With the ongoing construction and commissioning of electrified railways in western China, it is crucial to analyze the impact of strong shocks and random fluctuations in traction loads on mountainous power grids, and to study the reliability enhancement of these grids considering electrified railways access, to ensure their safety and the reliable, continuous power supply for the railways. Therefore, this paper proposes a method to enhance the reliability of mountainous power grids considering electrified railways access. First, stochastic fluctuation characteristics of traction loads are simulated through train traction calculations. Subsequently, the reliability level of mountainous grids is quantitatively evaluated, with a novel line vulnerability index established to identify weak grid sections. Finally, two complementary enhancement strategies are proposed: dynamic line capacity expansion and optimized backup capacity allocation. Case studies demonstrate the effectiveness of the method through comparative analysis of reliability indices before and after implementation, confirming both technical validity and practical feasibility.
Open AccessResearch on Reliability Improvement Method of Mountainous Power Grid Considering Electrified Railways Access
The mountainous power grids exhibit significantly lower reliability compared to conventional urban grids due to inherent structural weaknesses, dispersed load distribution, and higher failure probabilities of power supply equipment. With the ongoing construction and commissioning of electrified railways in western China, it is crucial to analyze the impact of strong shocks and random fluctuations in traction loads on mountainous power grids, and to study the reliability enhancement of these grids considering electrified railways access, to ensure their safety and the reliable, continuous power supply for the railways. Therefore, this paper proposes a method to enhance the reliability of mountainous power grids considering electrified railways access. First, stochastic fluctuation characteristics of traction loads are simulated through train traction calculations. Subsequently, the reliability level of mountainous grids is quantitatively evaluated, with a novel line vulnerability index established to identify weak grid sections. Finally, two complementary enhancement strategies are proposed: dynamic line capacity expansion and optimized backup capacity allocation. Case studies demonstrate the effectiveness of the method through comparative analysis of reliability indices before and after implementation, confirming both technical validity and practical feasibility.