A new nonlinear directional overcurrent relay coordination technique, and banes and boons of near-end faults based approach

被引:177
作者
Birla, Dinesh [1 ]
Maheshwari, Rudra Prakash [1 ]
Gupta, H. O. [1 ]
机构
[1] Indian Inst Technol, Dept Elect Engn, Roorkee 247667, Uttar Pradesh, India
关键词
backup/primary (B/P); coordination time interval (CTI); directional overcurrent relays (DOCRs); objective function; pick-up current setting (Ip); time dial setting (TDS);
D O I
10.1109/TPWRD.2005.861325
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 [电气工程]; 0809 [电子科学与技术];
摘要
Considerations of weight factors and far-end faults in the directional overcurrent relay coordination problem formulation do not affect the optimal solution. This paper investigates this viewpoint and verifies that indeed by such an approach the optimality is not lost. But, this study reveals that in doing so, the coordination quality is sacrificed to some extent. It is also observed that if all remaining valid constraints (after relaxing few constraints based on the back-up coordination philosophy and strength of fault level generated) are considered and if the objective function is changed to running sum of all violating constraints, all valid considered constraints are satisfied. This study is done by simultaneously optimizing all settings in nonlinear environment by Sequential Quadratic Programming method using Matlab Toolbox. The results of the analysis on a sample 6-bus and IEEE 30-bus systems are presented in this paper.
引用
收藏
页码:1176 / 1182
页数:7
相关论文
共 35 条
[1]
An adaptive protection scheme for optimal coordination of overcurrent relays [J].
Abdelaziz, AY ;
Talaat, HEA ;
Nosseir, AI ;
Hajjar, AA .
ELECTRIC POWER SYSTEMS RESEARCH, 2002, 61 (01) :1-9
[2]
ABDELAZIZ AY, 1999, P 3 CIGRE REG C AR C
[3]
A new optimal approach for coordination of overcurrent relays in interconnected power systems [J].
Abyaneh, HA ;
Al-Dabbagh, M ;
Karegar, HK ;
Sadeghi, SHH ;
Khan, RAJ .
IEEE TRANSACTIONS ON POWER DELIVERY, 2003, 18 (02) :430-435
[4]
ABYANEH HA, 2002, P AUSTR U POW ENG C
[6]
Albrecht RE, 1964, IEEE T POWER APPARAT, V83, P402, DOI DOI 10.1109/TPAS.1964.4766018
[8]
Time-Overcurrent Relay Coordination: A Review [J].
Birla, Dinesh ;
Maheshwari, Rudra Prakash ;
Gupta, Hari Om .
INTERNATIONAL JOURNAL OF EMERGING ELECTRIC POWER SYSTEMS, 2005, 2 (02)
[9]
Braga A. S., 1996, P IEEE MELECON C, V3, P1535
[10]
A PERSONAL-COMPUTER APPROACH TO OVERCURRENT PROTECTIVE DEVICE COORDINATION [J].
BROWN, KA ;
PARKER, JM .
IEEE TRANSACTIONS ON POWER DELIVERY, 1988, 3 (02) :509-513