System integrity protection scheme based on on-line transient stability calculation using protection relay device hardware

2016 ◽  
Author(s):  
H. Iwaki ◽  
Y. Inoue ◽  
A. Ishibashi ◽  
M. Kimura ◽  
K. Omata ◽  
...  
Keyword(s):  
Transient Stability ◽  
Stability Calculation ◽  
Protection Relay ◽  
Protection Scheme ◽  
System Integrity ◽  
Integrity Protection ◽  
On Line ◽  
Relay Device

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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