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Xuchang, China

The Power Grid Corporation of India Limited , is an Indian state-owned electric utilities company headquartered in Gurgaon, India. POWERGRID transmits about 50% of the total power generated in India on its transmission network. Its subsidiary company, Power System Operation Corporation Limited handles power management for Power Grid. POWERGRID also operates a telecom business under the name POWERTEL. Wikipedia.

Wang W.,Xuchang University | Chen J.,Xuchang University | Mao L.,Power Grid Corporation of India
Advanced Materials Research | Year: 2012

The discrete dynamic kinematics models of two-wheeled mobile robot was constructed and iterative learning control strategy was applied into this repeat motion plant, iterative learning controller for mobile robot was designed and the trajectory tracking algorithm was programmed, also the iterative learning control laws was designed and the ultimate simulation study manifest that learning operator can influence it's iterative learning quality and if the control system unsatisfied with convergence condition, the system will unstable and position tracking divergent, otherwise, the robust control realized. © (2012) Trans Tech Publications, Switzerland. Source

Sarkar S.,Power Grid Corporation of India | Datta R.,Indian Institute of Technology Kharagpur
Ad Hoc Networks | Year: 2015

A wireless mobile ad hoc network (MANET) is an autonomous system of mobile nodes connected by wireless links. MANET is infrastructureless and dynamic in nature. As the nodes have limited battery power and communicate through shared wireless channel, it is hard to design a secure and energy efficient routing protocol in a MANET. In this paper. 1 1This paper has been presented in part at IEEE 20th NCC'14, Kanpur, India, February 2014., we propose a secure and energy-efficient stochastic multipath routing protocol based on a Markov chain for mobile ad-hoc networks (MANETs). The proposed routing protocol computes multiple paths between source- destination pairs and selects an energy-efficient path stochastically from those paths to forward the data packets. In addition, this protocol also secures data flow in the network as the packets are forwarded through random paths from the source node to the destination node. The random data flow paths make it difficult to jam, intercept, and hijack data packets as this will require the attacker to listen to all possible paths from the source to the destination. The performance analysis and numerical results show that our proposed protocol achieves significant performance gains in terms of energy consumption, delay, throughput, and security of routing protocols. © 2015 Elsevier B.V. Source

Sarkar K.K.,Power Grid Corporation of India
Water and Energy International | Year: 2012

The earthing system of a substation shall be optimal, safe and economical. Accurate measurement of soil resistivity, proper analysis of soil resistivity measurements, optimal grid spacing, proper assumption off ault currents, analysis with two or multi layers soil model play important roles in optimal, safe and economical design of earthing system of a high voltage or an extra high voltage substation. The paper describes different aspects of designing optimal, safe and economical earthing mat of a high voltage or an extra high voltage AC substation in POWERGRID. The methodology of optimizing quantity of main Earthmat and risers by optimally designing the grid spacing where the substation area is very large and the soil resistivity is very low with homogeneous type soil or by adopting satellite Earthmat or deep driven vertical electrodes in hilly area where the area of the substation is considerably less and the soil resistivity is relatively high and non-uniform have been elaborated. Source

Mamun K.A.,University of The South Pacific | Ashraf Z.,Power Grid Corporation of India
2015 2nd Asia-Pacific World Congress on Computer Science and Engineering, APWC on CSE 2015 | Year: 2015

Nowadays rate of vehicle theft is very high all through the world and the situation are even worse in developing country. Therefore, protection of vehicles with an intelligent, reliable, effective and economical system is very important. The existing technologies for vehicle security have a number of limitations including high false alarm rate, easy deactivation and high cost. In this research an Anti-Theft Vehicle Security System (ATV2S) has been design and implemented utilizing sensor-network system which employ Global Positioning System (GPS) and Global System for mobile communication (GSM) technology to track the vehicle. The cutting edge technology of ATV2S is capable to protect, monitor and track the vehicle even within a minute. © 2015 IEEE. Source

Kumar R.,Power Grid Corporation of India | Kumar S.,Uttar Pradesh Technical University
2014 Recent Advances in Engineering and Computational Sciences, RAECS 2014 | Year: 2014

In this paper distributed parameters based a novel algorithm for finding location of fault in long transmission line is presented. Presently relay manufacturers use impedance based algorithm considering the lumped parameters even for long transmission line. Lumped parameters based gives accurate results for short transmission line, but fails to produce good accuracy in long transmission lines. This paper draws the attention of manufacturer to use distributed parameters based algorithm in long transmission line to get correct location of fault. A mathematical model is developed for proposed technique and a simulation model is developed for proposed fault locator in MATLAB for short and long transmission line. Simulation results are validated from actual field results and the results obtained from two different make relays. © 2014 IEEE. Source

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