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1.华南理工大学电力学院,广东省广州市 510640
2.深圳供电局有限公司,广东省深圳市 518020
赖承中(1996—),男,硕士研究生,主要研究方向:电能质量分析与控制技术。E-mail:zqlflf@126.com
钟庆(1978—),男,通信作者,教授,主要研究方向:电力系统运行分析与控制、电能质量分析与控制技术。E-mail:epqzhong@scut.edu.cn
赵宇明(1978—),男,博士,教授级高级工程师,主要研究方向:直流系统分析、控制和保护。E-mail:zhaoym98@sina.com
收稿日期:2021-01-25,
修回日期:2021-02-25,
网络出版日期:2021-07-06,
纸质出版日期:2021-10-10
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赖承中,钟庆,赵宇明等.低压直流供电系统电气设备电击风险评估方法[J].电力系统自动化,2021,45(19):141-147.
LAI Chengzhong,ZHONG Qing,ZHAO Yuming,et al.Risk Assessment Method for Electric Shock of Electrical Equipment in Low-voltage DC Power Supply System[J].Automation of Electric Power Systems,2021,45(19):141-147.
赖承中,钟庆,赵宇明等.低压直流供电系统电气设备电击风险评估方法[J].电力系统自动化,2021,45(19):141-147. DOI: 10.7500/AEPS20210125002.
LAI Chengzhong,ZHONG Qing,ZHAO Yuming,et al.Risk Assessment Method for Electric Shock of Electrical Equipment in Low-voltage DC Power Supply System[J].Automation of Electric Power Systems,2021,45(19):141-147. DOI: 10.7500/AEPS20210125002.
低压直流(LVDC)供电系统的电击风险需要合适的评估方法对其进行量化。首先,文中根据电气设备安全性要素组合,结合LVDC供电系统特点,分析了LVDC的电击风险点。然后,建立了综合考虑伤害严重程度、暴露在危险中的可能性和限制伤害可能性这3个要素的LVDC供电系统电气设备5级电击风险评估模型。评估模型将输入的3个参数组合映射为5级电击风险评估结果。最后,以实际系统中的不同电压等级的设备为例,验证了所提方法的有效性。
The electric shock risk of the low-voltage direct current (LVDC) power supply system needs to be quantified by appropriate assessment methods. First
this paper analyzes the electric shock risk points of LVDC based on the combination of safety elements for electrical equipment and the characteristics of LVDC power supply systems. Then
a 5-level electric shock risk assessment model is established for electrical equipment of LVDC power supply system that integrates three elements: severity of injury
possibility of exposure to hazards and limitation of injury possibility. The assessment model maps the combination of the three input parameters into a 5-level electric shock risk assessment result. Finally
the effectiveness of the proposed method is verified by using different voltage levels of equipment in the actual system as an example.
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