四川电力技术
四川電力技術
사천전력기술
SICHUAN ELECTRIC POWER TECHNOLOGY
2014年
3期
10-13,81
,共5页
李浩%刘继勋%赵恒%范康林%肖先勇
李浩%劉繼勛%趙恆%範康林%肖先勇
리호%류계훈%조항%범강림%초선용
生物电阻抗%人体触电%漏电保护%剩余电流%特征
生物電阻抗%人體觸電%漏電保護%剩餘電流%特徵
생물전조항%인체촉전%루전보호%잉여전류%특정
electrical bioimpedance%human body electric shock%leakage protection%residual current%characteristic
识别人体触电特征是电网安全防御、用电安全保护、开发新型漏电保护装置等的重要前提。基于生物电阻抗理论,研究人体阻抗α频散特性和人体触电阻抗参数求取方法。利用低压配电网谐波电压,提出一种考虑人体阻抗及其频率散射特性的人体触电特征识别方法。基于PSCAD/EMTDC、MATLAB的仿真实验表明,该方法简单、可行,对于解决当前剩余电流保护普遍存在的死区问题和开发基于人体触电特征的新型漏电保护装置有一定参考价值。
識彆人體觸電特徵是電網安全防禦、用電安全保護、開髮新型漏電保護裝置等的重要前提。基于生物電阻抗理論,研究人體阻抗α頻散特性和人體觸電阻抗參數求取方法。利用低壓配電網諧波電壓,提齣一種攷慮人體阻抗及其頻率散射特性的人體觸電特徵識彆方法。基于PSCAD/EMTDC、MATLAB的倣真實驗錶明,該方法簡單、可行,對于解決噹前剩餘電流保護普遍存在的死區問題和開髮基于人體觸電特徵的新型漏電保護裝置有一定參攷價值。
식별인체촉전특정시전망안전방어、용전안전보호、개발신형루전보호장치등적중요전제。기우생물전조항이론,연구인체조항α빈산특성화인체촉전조항삼수구취방법。이용저압배전망해파전압,제출일충고필인체조항급기빈솔산사특성적인체촉전특정식별방법。기우PSCAD/EMTDC、MATLAB적방진실험표명,해방법간단、가행,대우해결당전잉여전류보호보편존재적사구문제화개발기우인체촉전특정적신형루전보호장치유일정삼고개치。
Identification for the characteristics of human body electric shock is an indispensable prerequisite for the security and defense of power grid, the security protection of power utilization, and the development of novel leakage protection de -vices.Based on the theory of electrical bioimpedance (EBI), the method for the frequency scattering characteristics of humanbody and the impedance parameters of human body electric shock are studied .Using the harmonic voltage commonly existingin low -voltage distribution network, the identification method for the characteristics of human body electric shock is proposedconsidering human body impedance and its frequency scattering characteristics .The proposed method is verified to be simple,feasible and fast by the simulation results with PSCAD /EMTDC and MATLAB, which is of reference significance for eliminatingthe dead -zone of the residual current protective devices and the design of novel leakage protection devices based on thecharacteristics of human body electric shock.