Výsledky vyhledávání - "ZHANG Gaomin"

Akademický článek

Suppression of transient overvoltage in renewable energy transmission terminal by grid-forming based reactive power compensation

Autor: SHANG Lei, TANG Wangqianyun, SU Shi, ZHANG Gaomin, TANG Xiaoqian, HUA Zhuhu

Publikováno v: 电力工程技术, Vol 43, Iss 2, Pp 83-93 (2024)

Line commutated converter based high voltage direct current (LCC-HVDC) is the key to large-scale grid connection and long-distance transmission of renewable energy. However, faults such as DC blocking and commutation failure may lead to short-term ex

Externí odkaz: https://doaj.org/article/735d6ee95464461ea72ff00b41ee73a9

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Akademický článek

Analysis and testing of wireless transmission attenuation in coal mine underground and research on the optimal operating frequency band

Autor: SUN Jiping, LIANG Weifeng, PENG Ming, ZHANG Gaomin, PAN Tao, ZHANG Hou, LI Xiaowei

Publikováno v: Gong-kuang zidonghua, Vol 49, Iss 4, Pp 1-8 (2023)

The application of technologies such as 5G, UWB, ZigBee and WiFi6 in coal mine mobile communication, personnel and vehicle positioning, and wireless transmission has promoted coal mine safety production and intelligent construction. However, due to t

Externí odkaz: https://doaj.org/article/5b002a0840954eceb3c64763ec93bc10

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Akademický článek

Research on the safety threshold of radio wave explosion-proof

Autor: SUN Jiping, PENG Ming, PAN Tao, ZHANG Gaomin

Publikováno v: Gong-kuang zidonghua, Vol 49, Iss 2, Pp 1-5 (2023)

The powerful radio waves can ignite explosive gases. Therefore, it is necessary to reasonably set the radio wave explosion-proof safety power and energy threshold emitted by the radio transmitter to limit the radio wave power and energy emitted by th

Externí odkaz: https://doaj.org/article/ced6fd5c7b704442a5405cebd4bb90ad

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Akademický článek

Coal mine underground wireless transmission analysis method

Autor: SHAO Shuicai, GUO Xudong, PENG Ming, ZHANG Gaomin

Publikováno v: Gong-kuang zidonghua, Vol 48, Iss 10, Pp 123-128 (2022)

At present, the design and plan of the mine mobile communication system and the personnel and vehicle positioning system mainly depend on experience and field test. There are some problems such as heavy workload, difficult optimization of the layout

Externí odkaz: https://doaj.org/article/d7c10425229146e0969ba3e89fc36c10

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Akademický článek

Research on safe power threshold of radio wave explosion-proof in coal mine

Autor: LIANG Weifeng, SUN Jiping, PENG Ming, PAN Tao, ZHANG Gaomin

Publikováno v: Gong-kuang zidonghua, Vol 48, Iss 12, Pp 123-128, 163 (2022)

In order to prevent gas explosion caused by radio waves emitted by wireless equipment in the coal mine, the power and energy of radio waves in coal mines should be limited. This paper introduces the safety power threshold of continuous radio wave exp

Externí odkaz: https://doaj.org/article/6c2a7a5290d4490cbf6a8e134ec30ff7

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Akademický článek

Influence of underground radio wave on human body in coal mine

Autor: DING Xuhai, PAN Tao, PENG Ming, ZHANG Gaomin

Publikováno v: Gong-kuang zidonghua, Vol 48, Iss 11, Pp 84-92, 144 (2022)

The large-power radio waves emitted by 5G, WiFi6, UWB, ZigBee and other mine mobile communication systems and personnel and vehicle positioning systems will affect the health of underground personnel. Therefore, it is necessary to study the influence

Externí odkaz: https://doaj.org/article/760727de10df4589b17aececa64d5d1a

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