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Wireless power transmission systems has revolutionized the transmission of power in various application. The concept has gained momentum recently. This work presents an exhaustive insight and detailed discussion on the components of a systems having Wireless Power Transfer (WPT) and the various techniques used for its implementation. The use of WPT in various fields such as medical, defense etc. have...
Exception happens during fulfilment of NGN (Next Generation Network) & All-IP based telecom-/data-services, which are provisioned over NGN-OSS (Next Generation Network — Operations Support Systems) and NGN-BSS (Next Generation Network — Business Support Systems). As the volume and heterogeneity of NGN & All-IP based services that are provisioned over the fulfilment-stack increases, the operational...
In this paper authors proposed a secured Digital Biometric based watermarking algorithm and its hardware realization by means of Field Programmable Gate Array (FPGA). The scheme focuses on the Graph Based Visual Saliency (GBVS) technique. Biometric watermarking has been introduced for validity and ultimate security of a digital media. Biometric information which is basically fingerprint is being hidden...
This paper represents a reliable, compact, fast and low cost smart home automation system, based on Arduino (microcontroller) and Android app. Bluetooth chip has been used with Arduino, thus eliminating the use of personal computers (PCs). Various devices such as lights, DC Servomotors have been incorporated in the designed system to demonstrate the feasibility, reliability and quick operation of...
Coming days are becoming a much challenging task for the power system researchers due to the anomalous increase in the load demand with the existing system. As a result there exists a discordant between the transmission and generation framework which is severely pressurizing the power utilities. In this paper a quick and efficient methodology has been proposed to identify the most sensitive or susceptible...
In the present work, electric stress analysis is performed on a MV cable termination subjected to transient electric stresses. It is well known that stress cone is used in cable joints and terminations to relief electric stresses at the junction point of insulation and conductor screen. The high electric stress near the screen-cut zone may lead to tracking, partial discharge etc. which eventually...
In this 21st century, there has been a remarkable change in the field of Room Automation due to the introduction of improved voice recognition & wireless technologies. These systems are supposed to be implemented in the existing infrastructure of any home without any kind of changes in the existing connections. This system is most suitable for elderly and physically challenged person those who...
This paper presents a real-time performance evaluation of direct torque control (DTC) and regenerative braking control of improved z-source inverter fed induction motor drives using field programmable gate arrays (FPGA) based real-time digital simulator (RTDS). RTDS was built using Very High Speed Integrated Circuit Hardware Description Language (VHDL), composing it versatile and compact. The proposed...
Renewable energy potential in the form of wind or micro hydro are available in abundance at rural locations far away from city habitat. To harness this green energy the rugged induction generator has come up as a viable option. However, induction generator has change in reactive power requirement with change in load. This dynamic reactive power requirement is proposed to be met by a DSTATCOM and thereby...
Diode and thyristor based solid state converters are preferred because of their high reliability in applications for bulk power conversion. These converters generally use Power diodes or SCR (silicon controlled rectifiers) which has non-linear characteristics. Due to this reason such converters generate highly non-sinusoidal currents at the power supply utility. As a result of distorted currents the...
The paper presents a technique for detection classification and diagnosis of fault location on overhead transmission lines for different types of fault. Discrete wavelet transform (DWT) has been used for extraction of features of signals of current under faulted condition and back propagation neural network (BPNN) have been used for training the features of current signal for different fault location...
This paper reviews the historical background, present state, future challenges and opportunities of Control, Automation and Protection systems for a modern Combined Cycle (CC)/Co-generation Power plant. As the demand for lean, efficient, agile, and environmental friendly and low cost green energy methods grow, the need to automate combined cycle power plant process and auxiliaries continues. The recent...
FACTS devices can enable a line to carry its flow close to rating capacity and consequently can improve the power system security even in contingency and over loaded network. An opposition-based modified differential evolution algorithm is proposed to solve the OPF problem under different operating conditions for enhancement of power system performance with a SSSC device. The best location of SSSC...
Phasor measurement units (PMUs) have revolutionized power systems monitoring and control. By providing higher resolution measurements which provides better situational awareness, those time-synchronized measurements have enabled the development of better controls and operations for power systems. This paper discusses the basics of PMUs and their applications, mainly state estimation. The paper also...
This paper presents a design of multi-objective controller for a two input two output interacting Coupled Tank System (CTS) and its real time implementation. The multi-objective control has been achieved by satisfying time domain objective like pole placement and frequency domain objective like H-infinity condition. This multi-objective control has been formulated using Linear Matrix Inequality (LMI)...
Differential Code Shift Keying (DCSK) communication scheme a modified version of spread spectrum technology meant for power line carrier communication (PLCC). In power line conditions, this modulation scheme has its own advantages over other conventional modulation techniques. Development of DCSK scheme in MATLAB environment to transmit character string suffers with longer superchirp length particularly...
Source routing techniques like Trajectory Based Forwarding (TBF) are suitable for dense wireless sensor networks (WSNs) due to their low power requirement. Though usual opportunistic coordination adds reliability to TBF, it also increases delay and coordination complexity. Alternatively, this work proposes the use of multiple cooperative relays within every single hop of a trajectory so that two adjacent...
The work concentrated on developing a low-cost, portable, low power, accurate and effective Galvanic Skin response (GSR) acquisition system. Very High Frequency sinewave generator for stimulating current delivery is designed using a wide bandwidth dual JFET Operational Amplifier functioning at specific frequencies in the range 10 KHz to 45 KHz. The portability and power isolation is maintained by...
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