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Li Yongqi

China Southern Power Grid Company

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Publication

Featured researches published by Li Yongqi.

power and energy society general meeting | 2014

Grounding faults of cascade battery energy storage system

Ling Zhibin; Cao Yang; Ma Qin-Dong; Chen Man; Guo Haifeng; Li Yongqi

Grounding faults are inevitable when cascade battery energy storage system (CBESS) is in operation, so the detection and protection are very important in the practical application. The possible grounding fault types of the 10kV CBESS and the detection protection method were analyzed. It could be known that single point grounding fault in CBESS could be detected by monitoring CBESS neutral voltage, and there is no overcurrent in circuit. When two points grounding fault or multi-point grounding fault occurred, the faults could be detected by overcurrent protection or short circuit protection of power unit, and the cascaded battery energy storage system should stop operation.

Archive | 2013

In-phase SOC (state of charge) balance control method applying to H bridge cascaded battery energy storage system

Chen Man; Ling Zhibin; Guo Haifeng; Zhang Baihua; Li Yongxing; Li Yongqi; Zhou Jinsong; Chao Gang

Archive | 2013

Method for managing battery modules of energy storage power station of power grid

Li Yongqi; Zhang Baihua; Liu Jianzheng; Guo Haifeng; Yuan Zhichang; Qi Guoguang; Yang Daiming; Chen Man; Zhou Jinsong; Li Yongxing

Archive | 2015

Offline wireless parallel operation method of a plurality of energy storing converters in large-capacity energy storing system

Zhang Baihua; Ding Zhao; Chen Man; Li Yongqi; Wang Xiaojun; Zhang Xiaoyu; Han Jian; Chen Jianwei

Archive | 2014

Optimization method for battery energy storage system before peak clipping and valley filling day based on quadratic programming model

Huang Xiaodong; Yu Jianguo; Rao Hong; Li Yongxing; Li Yongqi; Zhong Chaoxian; Lu Zhigang; Wang Ke; Chen Rouyi; Dong Xuzhu; Duan Weiguo; Yuan Zhichang; Lu Chao; Bao Guannan

Archive | 2014

Method for optimizing capacity of energy storage system in case of fluctuation of smooth and renewable energy sources electricity generation output

Rao Hong; Dong Xuzhu; Lu Zhigang; Liu Yi; Chen Bo; Chen Man; Li Yongqi; Shen Gang; Liu Zhongsheng; Guo Li

Archive | 2014

Method for controlling charging and discharging of energy storage system in wind power plant based on Kalman filtering

Yuan Zhichang; Zhang Baihua; Lu Chao; Guo Haifeng; Xu Hanchen; Li Yongqi; Chen Man

Archive | 2014

Micro-grid operation mode seamless switching method based on energy storage current transformer

Liu Zhichao; Guo Haifeng; Zhang Xiaoyu; Zhang Baihua; Zhao Lulu; Li Yongxing; Cao Fengmei; Li Yongqi; Ren Qiuli; Chen Man; Zhou Jinsong

Archive | 2013

Method for detecting internal resistance of storage battery through inductor-capacitor series discharge

Guo Haifeng; Ling Zhibin; Li Yongxing; Zhang Baihua; Li Yongqi; Chen Man

Archive | 2015

Rapid electric connector, lithium ion battery apparatus and lithium ion battery pack

Xu Delei; Cai Huiqun; Wei Yincang; Zhang Bing; Guo Haifeng; Zhang Baihua; Chen Man; Li Yongqi

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Chen Man

China Southern Power Grid Company

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Guo Haifeng

China Southern Power Grid Company

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Zhang Baihua

China Southern Power Grid Company

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Ling Zhibin

Shanghai Jiao Tong University

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Lu Chao

Tsinghua University

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Lu Zhigang

China Southern Power Grid Company

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Cao Yang

Shanghai Jiao Tong University

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Rao Hong

China Southern Power Grid Company

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Dong Xuzhu

Electric Power Research Institute

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Li Xiaolin

China Southern Power Grid Company

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