Beijing Boe Optoelectronics Technology Co., Ltd.

State Grid Corporation of China

Global Energy Interconnection Research Institute Co. Ltd

Haijun Liu

Guoliang Zhao

Zhengang Lu

Feng Wang

Daekeun Yoon

Xiang Wang

Weiguo Li

Dong Liang

Dae Keun Yoon

Weidong Shen

Jun Ge

Zhe Zhou

Zhanfeng Deng

Yunfei Xu

Chulyoun Kim

Xiaolin Mo

Pengliang Xu

Guofu Chen

Guozhong Zhang

Wenyuan Ning

Linhai Cai

Jieying Song

Jing Ge

Provided are an insulation coordination method and system for a series compensation apparatus, a storage medium and an electronic device. The method includes determining a topology of a series compensation apparatus and a system parameter and an operation mode of an access system of the series compensation apparatus; performing overvoltage partitioning on the series compensation apparatus; constructing a simulated operating condition according to a plurality of overvoltage analysis areas and an operating condition; establishing an overvoltage simulation analysis model; in each overvoltage analysis area, performing a simulating calculation for different preset fault types according to the overvoltage simulation analysis model; determining the number of lightning arresters installed in each overvoltage analysis area and a continuous operating voltage value of each lightning arrester; and determining, according to a preset insulation coordination coefficient and the continuous operating voltage value of each lightning arrester, a safe operating voltage of the series compensation apparatus.

Insulation coordination method and system for a series compensation apparatus, storage medium and electronic device

Disclosed in embodiments of the present invention are a control method and device for an alternating-current and direct-current conversion circuit, and a computer storage medium. The alternating-current and direct-current conversion circuit comprises a first commutation unit, a second commutation unit, and a coupling unit. By obtaining voltage information and current information of the alternating-current and direct-current conversion circuit, a controllable device of the first commutation unit can be controlled to be turned on in delay or turned off in advance; and the second commutation unit is controlled to work in a controllable rectification state or a controllable inversion state or an uncontrollable rectification state.

Control method and device for alternating-current and direct-current conversion circuit, and computer storage medium

A light guide device is provided in an embodiment of the invention. The light guide device comprises a light guide plate and a light source provided on a side surface of the light guide plate. A light guide strip is provided on a side surface of the light guide plate intersecting with the side surface provided with the light source. A side surface of the light guide strip facing the light guide plate is a light exit surface of the light guide strip, a side surface of the light guide strip opposite to the light exit surface is a reflective surface of the light guide strip, and an end surface of the light guide strip adjacent to the light source is a light entrance surface of the light guide strip.

Light guide device

The invention disclosed a light source, comprising a light tube and a plurality of prism members disposed on an outer surface of the light tube for reducing amount of external lights entering the light tube. According to the invention, the prism members disposed on the outer surface of the light tube can not only focus the light emitting from the light tube, but also increase the possibility of total reflection of the incident light.

Light source and backlight module with the same

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Beijing, China

Haijun Liu