Power grid fault traveling wave network protection scheme

2011 ◽  
Vol 33 (4) ◽  
pp. 875-879 ◽  
Author(s):  
Li Zewen ◽  
Yao Jiangang ◽  
Zeng Xiangjun ◽  
Deng Feng
Keyword(s):  
Traveling Wave ◽  
Power Grid ◽  
Protection Scheme ◽  
Network Protection ◽  
Wave Network

Power grid fault traveling wave network location method

2013 ◽  
Author(s):  
Li Zewen ◽  
Hua Huanhuan ◽  
Deng Feng ◽  
Zeng Xiangjun ◽  
Yu Kun
Keyword(s):  
Traveling Wave ◽  
Power Grid ◽  
Location Method ◽  
Network Location ◽  
Wave Network

Research on High Bandwidth Rogowski Coil for Measuring Lightning Traveling Wave Current on Double Circuit Transmission Line

2014 ◽  
Vol 986-987 ◽  
pp. 1558-1564
Author(s):  
Cheng Ju Yang ◽  
Cheng Wei Zhang ◽  
Geng Bin Zhang ◽  
Pei Ling Chen ◽  
Shi Jun Xie
Keyword(s):  
Transmission Line ◽  
Traveling Wave ◽  
High Frequency ◽  
Power Grid ◽  
Low Frequency ◽  
Rogowski Coil ◽  
The Self ◽  
Equivalent Model ◽  
High Bandwidth ◽  
Frequency Components

Double circuit transmission line is an important part of the power grid, which is vulnerable to lightning and may endanger the security and stability of the power grid. In order to design a sensor which can monitor the lightning traveling wave current on double circuit transmission line, simulations of lightning on the double circuit transmission line were conducted. The simulation result shows that besides high frequency components, the traveling wave contains a lot of low frequency components. Based on the equivalent model and the frequency response of the self-integrated Rogowski coil, it turns out that the widely used self-integrated Rogowski coil is not suitable for this application as the problem of low frequency distortion. In this paper, through theoretical analysis and simulations in Matlab, an improved Rogowski coil with analog integrator is proposed which can correct the low frequency distortion of the self-integrated Rogowski coil. All the simulations, experiments and operating data installed to a double circuit transmission line in China verify the validity of the high bandwidth Rogowski coil.

Protection Scheme for Distribution Network with Distributed Generation

2014 ◽  
Vol 960-961 ◽  
pp. 1376-1380
Author(s):  
Chong Xin Xu ◽  
Yan Jun Jiao
Keyword(s):  
Power Generation ◽  
Distributed Generation ◽  
Distribution System ◽  
Distribution Network ◽  
Protection System ◽  
Protection Scheme ◽  
Network Protection ◽  
New Energy ◽  
Comprehensive Judgment

Power generation becomes a main way of using new energy. However, the access of distributed generation(DG) causes the ordinary protection system develop a series of problems. In this paper, the structure of distribution network with DG is introduced firstly.Secondly,it is analysed that the effect that DG brings to distribution network protection, and then a new protection scheme of distribution network with DG is put forward. The segment I, II of direction three-current protection on the line which is at the upstream of DG, and the next line’s segment I, II consists of a simple communication unit. Through the comprehensive judgment of two protections’ action results, fault can be isolated in minimum range quickly and accurately. Finally, the correctness and feasibility of the new protection principle are verified by simulating a 10KV distribution system.

Wide area traveling wave based power grid fault network location method

2014 ◽  
Vol 63 ◽  
pp. 173-177 ◽  
Author(s):  
Li Zewen ◽  
Zeng Xiangjun ◽  
Yao Jiangang ◽  
Deng Feng ◽  
Hua Huanhuan
Keyword(s):  
Traveling Wave ◽  
Power Grid ◽  
Wide Area ◽  
Location Method ◽  
Network Location ◽  
Fault Network

Fault Analysis and Traveling-Wave Protection Scheme for Bipolar HVDC Lines

2012 ◽  
Vol 27 (3) ◽  
pp. 1583-1591 ◽  
Author(s):  
Ying Zhang ◽  
Nengling Tai ◽  
Bin Xu
Keyword(s):  
Traveling Wave ◽  
Fault Analysis ◽  
Protection Scheme

Special Protection Schemes: A Survey and Vision for the Future

2016 ◽  
Vol 839 ◽  
pp. 49-53 ◽  
Author(s):  
K. Shafeeque Ahmed ◽  
Shanmugam Prabhakar Karthikeyan ◽  
Sarat Kumar Sahoo
Keyword(s):  
Power System ◽  
Power Grid ◽  
General Structure ◽  
Power Grids ◽  
Human Beings ◽  
Protection Scheme ◽  
System Protection ◽  
System Integrity ◽  
Integrity Protection ◽  
Special Protection

Any power system network is subjected to disturbances at any time and place. It is considered as one of the most stochastic system ever seen by the human beings. To enhance the power system reliability, System Protection Scheme (SPS) is an effective tool for utilizing the power grid during rare contingencies. This method is often employed as secondary protection schemes. SPS is also termed as Special Protection Scheme. SPS is referred with different names by different users such as IEEE as System Integrity Protection Scheme (SIPS), Bonneville Power Administration (BPA) as Remedial Action Scheme (RAS) and WECC and others as SPS. In India, only in late 90s, the concept of SPS was introduced to solve the above problem. In Indian power grid different SPS has been designed and implemented successfully. This paper presents a complete knowledge, need , general structure, characteristics and a brief description of the major SPS employed in various Indian Power grids. Post - commissioning performance of these SPS has also been analyzed briefly. Finally, highlights of major issues involved with the employment of SPS in the Indian scenario.

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