Welcome to International Journal of Emerging Technologies in Engineering Research (IJETER)

Volume 7, Issue 7, July (2019)

S.No Title & Authors Full Text
1 Study and Analysis of Energy Conservation in Wireless Sensor Network
Yashaswini B K, Ranjani G
Abstract - Wireless sensor networks (WSN’s) are becoming increasingly popular with the advent of the Internet of Things (IOT). Various real-world applications of WSNs such as in smart grids, smart farming and smart health would require a potential deployment of thousands or maybe hundreds of thousands of sensor nodes/actuators. To ensure proper working order and network efficiency of such a network of sensor nodes, an effective WSN management system has to be integrated. However the inherent challenges of WSNs such as sensor/actuator heterogeneity, application dependency and resource constraints have led to to challenges in implementing effective traditional WSN management. This difficulty in management increases as the WSN becomes larger. Energy conversation is a critical problem in wireless sensor networks (WSNs) so that the energy consumption must be minimized while satisfying application requirements. In this paper we will analyze the energy efficiency between the sensor nodes and also between the sensor nodes and the base station.
2 Performance Analysis of a Non-inverting DC-DC Buck-Boost Converter with PI Controller
M. Sowmiya, Dr. D. Murali
Abstract - In general, DC-DC converters are used for voltage regulation of renewable energy resources such as fuel cell and solar cell. The voltage obtained from the solar panel and fuel cell is unregulated. In order to get regulated voltage, it is needed to connect a DC-DC converter. In this paper, a non-inverting DC-DC Buck- Boost converter is proposed, in which both the boost converter and buck converter stages are connected in cascade. The proposed configuration operates either in buck / boost operating mode. In both buck and boost operating modes, constant voltage is obtained with reduced ripple current. A phase shifted technique is used, in which size of filter components are reduced. The time domain simulations are carried out in MATLAB/SIMULINK environment to validate the effectiveness of the proposed configuration of the converter with and without PI (Proportional + Integral) controller. A prototype model of the converter has been developed to validate its performance.

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