Method to Analyze Effect of Circuit Tolerance on Reliability of Protective Relays

Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (3): 61-65,76.

• Power & Electrical Engineering • Previous Articles Next Articles

Method to Analyze Effect of Circuit Tolerance on Reliability of Protective Relays

Wang Gang¹Shao Qi-zhuan²Li Xiao-hua¹

1. School of Electric Power , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China;2. Yunnan Electric Power Dispatching Centre , Kunming 650011 , Yunnan , China

Received:2005-12-22 Online:2007-03-25 Published:2007-03-25
Contact: 王钢(1966-)，男，教授，博士生导师，主要从事电力系统继电保护及自动化研究. E-mail:wg_scut@263.net
About author:王钢(1966-)，男，教授，博士生导师，主要从事电力系统继电保护及自动化研究.
Supported by:
国家自然科学基金资助项目( 50107004 ,50337010) ;霍英东青年教师基金资助项目(81048) ;华南理工大学自然科学基金资助项目

Abstract

Abstract:

In order to analyze the effect of circuit tolerance on the reliability of protective relays , the correct re-sponse rate is presented as the reliability index , and the corresponding confidence interval is estimated. Moreover ,a reliability criterion is proposed , that is , the system fails when the practical magnitude of system output signal ex-ceeds the tolerance range of the nominal magnitude. By combining the circuit simulation function of OrCAD/PSpice
software and Monte Carlo simulation method , the reliability index and its confidence interval can be obtained via point and interval estimations. As an example , the sensitivity of the component parameters in the data acquisition system of digital protector is analyzed , the results verifying the proposed method.

Key words: protective relay, reliability, circuit tolerance, Monte Carlo method, data acquisition system, sensitivity

Wang Gang Shao Qi-zhuan Li Xiao-hua. Method to Analyze Effect of Circuit Tolerance on Reliability of Protective Relays[J]. Journal of South China University of Technology (Natural Science Edition), 2007, 35(3): 61-65,76.

[1]	ZHAO Xiaomei, ZHU Xiangyuan, WANG Qin, et al. Operational Reliability Optimization Strategies of Multi-type Bus Lines [J]. Journal of South China University of Technology(Natural Science Edition), 2023, 51(8): 32-39.
[2]	JIANG Jihai DU Boran ZHANG Jian. Application and Technology Prospects of Hydrodynamic-Magnetic Compound Support for Axial Piston Pump [J]. Journal of South China University of Technology(Natural Science Edition), 2021, 49(2): 88-98,109.
[3]	WAN Yipin SONG Xuding YUAN Zhengwen. Fatigue Test and Fatigue Reliability Evaluation of Loader Working Device [J]. Journal of South China University of Technology (Natural Science Edition), 2020, 48(8): 108-114.
[4]	LIU Xiaoling, WANG Bing, HUANG Qiao, et al. Condition Assessment Model for Cable-Stayed Bridges Based on Evidence Reasoning Framework [J]. Journal of South China University of Technology (Natural Science Edition), 2020, 48(6): 69-76.
[5]	LIU Guang LIU Jike Lü Zhongrong. Parameter Identification of Fractional-Order System via Enhanced Response Sensitivity Approach [J]. Journal of South China University of Technology (Natural Science Edition), 2020, 48(4): 65-72,94.
[6]	SU Hailiang, LAN Fengchong, HE Yuyan, et al. Reliability Topology Optimization Design Based on Chebyshev Zero Polynomial Interval Uncertainty [J]. Journal of South China University of Technology (Natural Science Edition), 2020, 48(4): 54-64.
[7]	Lü Hui, YANG Kun, HUANG Xiaoting, et al. Inherent Characteristics Analysis and Optimization of Powertrain Mounting Systems Involving Fuzzy Uncertainty [J]. Journal of South China University of Technology (Natural Science Edition), 2020, 48(10): 105-112.
[8]	ZHANG Nian LUO Xia ZHANG Ke. Bus Travel Choice Reversals Based on the Equate-to-Differentiate Theory [J]. Journal of South China University of Technology (Natural Science Edition), 2019, 47(9): 61-67.
[9]	ZHANG Zifan LI Qiang LI Xiang ZHANG Chaojie. Reliability of Subway Bogies Based on Probability Cumulative Damage and Wiener Process [J]. Journal of South China University of Technology (Natural Science Edition), 2019, 47(7): 90-98.
[10]	ZHANG Jinbao ZHAO Yongqiang LIU Ming KONG Lingxian. Reliability Modelling for Degradation Based on Type-Ⅱ Generalized Logistic Distribution and Particle Swarm Optimization [J]. Journal of South China University of Technology (Natural Science Edition), 2019, 47(5): 96-102.
[11]	ZHAO Xing JI Kang LIN Hao XU Peng. Resource Allocation Model Based on Multi-objective Path Planning in Emergency Management [J]. Journal of South China University of Technology (Natural Science Edition), 2019, 47(4): 76-82.
[12]	YAN Hai LIU Ｒunkun. Short-Turn Vehicles Departure Strategy Considering Ｒeliability of Bus Operation [J]. Journal of South China University of Technology (Natural Science Edition), 2019, 47(11): 25-32,43.
[13]	. Incorporating Heterogeneity and Subjective Evaluation into Travel Mode Choice [J]. Journal of South China University of Technology(Natural Science Edition), 2019, 47(10): 124-129,150.
[14]	ZENG Fanliang HUANG Yansheng ZHOU Jing. Reliability Verification for Seismic Capacity Utilization Factors of Structure [J]. Journal of South China University of Technology (Natural Science Edition), 2019, 47(1): 56-63.
[15]	JIAN Bin MING Yanghua LEI Chaoyi TANG Tiantian. A DDBD Seismic Design Method Based Double Substitute Structures [J]. Journal of South China University of Technology(Natural Science Edition), 2018, 46(9): 43-50.

Method to Analyze Effect of Circuit Tolerance on Reliability of Protective Relays

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments