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Electricity markets of many countries, which are in developing phase, are facing problems like frequency fluctuations, generation deficiency and their performance is very sensitive to small disturbances. Operation of such power system is a challenging task and innovative strategies are required to get rid of these problems. Power utilities of India have introduced new tariff mechanism, Availability...
Fuel cell is an emerging energy source, which is characterized with advantages feature like non dependency of environment conditions, clean source of power generation etc. Use of fuel in grid independent operation may be attributed with challenges like load transients and voltage unbalancing. The paper presents and innovative approach to mitigate the challenges face during the grid independent operation...
Blum-Blum-Shub (x2 mod N) is proved cryptographically secure pseudorandom generator which passes all the statistical properties of randomness tests. It is secure, because it cannot predict in forward direction as well as in backward direction. The reason is hard to factorize the large integer N (≥ 264) which is the product of two special primes. The major challenge of BBS is the efficient...
This paper studies the potential of using vibration signatures in detecting stator winding short-circuit faults in the brushless synchronous generator. The vibration data collected from the experimental setup under various degrees and severities of the stator winding short-circuit faults in the brushless synchronous generator are investigated to identify fault signatures in the vibration signal. Investigation...
A new 1-bit full adder cell has been introduced in this paper. According to this approach body-biasing and semi domino logic both are used in a single full adder. Body-biasing technique is used to vary the threshold voltage to operate this adder at higher speed by allowing the faster gate switching. The important thing in this approach is that there is no requirement of any external circuitry for...
This paper presents a temperature and supply compensated sub-threshold voltage reference generator which generates a reference voltage of 173 mV at supply voltage of 0.6 V and temperature @ 27 °C, has been designed in 45 nm CMOS technology. Variation of output voltage with temperature over a range of −25 to 85 °C is 172.88 to 173.25 mV which gives temperature coefficient of 19 ppm/°C at supply voltage...
Cities typically face a wide gamut of management and maintenance problems. Existing automated sensor based solutions are prohibitively expensive to deploy. Furthermore, these solutions need to be complemented by incorporating human judgment for accurate, timely and cost-effective city-related event identification. To this end, this work proposes City Zen, which is a novel platform for event reporting...
LFSR based PN Sequence Generator technique is used for various cryptography applications and for designing encoder, decoder in different communication channel. It is more important to test and verify by implementing on any hardware for getting better efficient result. As FPGAs is used to implement any logical function for faster prototype development, it is necessary to implement the existing design...
The main purpose of this paper is to study the FPGA implementation of two 16 bit PN sequence generator namely Linear Feedback Shift Register (LFSR) and Blum-Blum-Shub (BBS). We have used FPGA to explain how FPGA's ease the hardware implementation part of communication systems. The logic of PN Sequence Generator presented here can be changed any time by changing the seed in LFSR or by changing the...
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