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Li Yajie

Electric Power Research Institute

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Featured researches published by Li Yajie.

asian simulation conference | 2016

Research on Frequency-Converter Control Strategy Based on VSM Technology

Dong Weijie; Meng Xiaoli; Liu Keyan; Song Xiaohui; Li Yajie; Ye Xueshun

Frequency converter occupies a large proportion in production and daily life, in order to enable it to effectively take part in the process of system frequency regulation, a control strategy based on the virtual synchronous motor technology (VSM) is proposed in this paper. In the inverter part, VSM control strategy is used, using the mechanical inertia and electrical characteristics of the synchronous motor, the power control and frequency control are researched and designed respectively. The frequency converter are simulated under environment of Simulink/Matlab. Simulation results show that the proposed control strategy can make the frequency converter follow the characteristics of VSM, can change the inverter’s output voltage and frequency with the change of motor load.

Archive | 2014

Multi-agent system-based distribution network self-healing control method

Song Xiaohui; Sheng Wanxing; Meng Xiaoli; Shi Changkai; Li Jianfang; Zhang Yu; Li Yajie; Jia Dongli; Zhang Tianshu

Archive | 2014

Method for positioning short-circuit fault of distribution network based on distributed intelligent multi-calibration

Li Yajie; Sheng Wanxing; Song Xiaohui; Meng Xiaoli

Archive | 2013

Method for locating single-phase disconnection non-ground fault of power distribution network

Jia Dongli; Sheng Wanxing; Song Xiaohui; Shi Changkai; Li Yajie; Zhang Lin

Archive | 2015

Power distribution network broken line fault location method

Sheng Wanxing; Song Xiaohui; Li Yajie; Meng Xiaoli; Shi Changkai; Liu Yongmei; Chang Song; Li Jianfang; Jia Dongli; Zhang Yu; Zhang Tianshu; Hu Lijuan

Archive | 2013

Reactive power optimization method of power distribution network

Sheng Wanxing; Liu Keyan; Jia Dongli; Meng Xiaoli; Hu Lijuan; He Kaiyuan; Ye Xueshun; Diao Yinglong; Tang Jiangang; Li Yajie; Dong Weijie

Archive | 2014

Superposition-principle-based on-line power flow calculation method of distribution network

Sheng Wanxing; Song Xiaohui; Li Jianfang; Meng Xiaoli; Zhang Yu; Li Yajie; Jia Dongli; Zhang Tianshu

Archive | 2012

Distribution grid self-healing control system and implementation method thereof

He Kaiyuan; Meng Xiaoli; Sheng Wanxing; Song Xiaohui; Shi Changkai; Chang Song; Li Yajie; Zhang Yu; Liu Yongmei; Zhang Tianshu; Jia Dongli; Li Jianfang; Hu Lijuan; Feng Xueping

Archive | 2015