An efficient layered routing and Energy saving Scheme in Heterogeneous Networks

A Framework of IRIS Analysis and Prediction in Real Time Security systemAuthors:-S Sarika, N V Ashok Kumar

Abstract:- To improve the life of battery-constrained wireless sensor networks, the energy efficiency of the routing algorithm is important (WSNs). In order to achieve optimum resource utilization, it is important to consider node heterogeneity in routing. To model a practical clustering-based WSN appropriate for heterogeneous sensing applications, this letter considers sensor nodes with random initial energies and random inequalities in data generation rate (traffic). In order to increase the stability period, the letter provides an energy model for the scenario and proposes a traffic and energy conscious routing (TEAR) method. Over legacy algorithms (LEACH, SEP and DEEC) in a multi-heterogeneous scenario in terms of stability duration. In addition, the principle of multi-heterogeneity (particularly the consideration of traffic heterogeneity) we develop more efficient routing algorithms with heterogeneous sensing for practical WSNs and Internet of Things applications.

Power Flow Management and Control in Weak low Voltage DC Grid System

Authors:-M. Prasad, P. Anil Kumar, Dr. T. SrinivasRao

Abstract:-Renewable energy resources such as solar photovoltaic, fuel cell, wind turbine, tidal energy, and bio-mass, etc. are gaining attraction with the depletion of fossils fuels. Most of these sources depends on the atmospheric conditions and hence the generated power fluctuates through the day. In view of this, energy storage devices such as batteries, ultra capacitor etc. are required to provide power to the loads in the absence of source power. Conventionally, a photovoltaic panel and a battery are used in the isolated grid system to supply consistent power to the consumers. The integration of the other resources such as fuel cell in this system can add a potential benefit for the isolated dc-grid such as accessibility of longtime power without power interruption and without adding any pollutants in the atmosphere. In context of this advantage, a hybrid system consisting of SPV (solar photo-voltaic), Fuel cell (FC) and battery is integrated with the common dc bus to form a reliable and efficient isolated dc system. Although this makes the weak dc-grid, yet it can serve the purpose of low cost dc system especially useful for village and remote areas of the developing countries. SPV is a primary source to provide the power to the load and fuel cell is the secondary source to provide power to the load. The power electronic DC-DC converters are used to integrate the SPV, FC and Battery. The power management algorithm to control the flow of power among the SPV, FC, and battery is implemented and executed to best utilize the accessible sources in an efficient way. The Solar photovoltaic can operate in the Maximum Power Point Tracking (MPPT) mode or Desired Power Control mode (DPC) to compensate the load power demand. The extra power required during the low irradiance case is supplied by the fuel cell in power control mode. The battery will work with in the voltage control mode to stabilize the DC load voltage additionally keeps up the state of charge (SOC) limits. The modeling of connected sources and control techniques are presented in this dissertation for the SPC-FC-Battery-Load system. The simulated results of the system consisting of a photovoltaic panel of 250Watt, Fuel cell of 160 Watt and battery of 6.5 Ah, 24 V are provided during all the modes of operation.

Modified Fuzzy Based Multi Input Converter for DC/AC Conversation with Buck/Boost Capabilities

Authors:-Yelisetti Ganesh Kumar, Dr.T Srinivasa Rao, P Varahala Dora

Abstract:- The proposal a new family of multi-input and multiple-output converters based on three switches leg is introduced. Inputs of the proposed converters are similar and they are topologically interchangeable and have boost or buck operation modes. The proposed converter has multiple output which operates as an inverter. A multiple-input multiple output dc–dc converter topology is proposed. This converter is able to accommodate an arbitrary number of sources and loads. The steady-state and dynamic characteristics of the proposed converter are analyzed. A controller scheme is proposed that enables budgeting the input powers coming from different energy sources, in addition to regulating the output voltages. Loss and efficiency modeling and sensitivity analysis to the underlying parameters are performed. Several case studies are presented to verify the analytical models and evaluate the performance of the proposed converter. Multi terminal converters eliminate using several single-input-single output converters and simplify their topologies and reduce their cost. In this paper, a new family of multi-input converters based on three switches leg is introduced. Inputs of the proposed converters are similar and they are topologically interchangeable and have boost or buck operation modes. The proposed converter has one output which operates as an inverter. Here, all operating modes of the proposed converters and their effects on each other are investigated, in details. Also, an appropriate switching technique for the converters is given. A detailed comparison between conventional and proposed two-input converters is also presented. A two-input, one-output prototype converter has been implemented to validate the given analyses and to verify the proposed converter’s performance. The experimental results are in good agreement with the theoretical and simulated analyses.

Performance Evaluation of 3Ø Transmission networks with Multistate Switching Cells

Authors:- G Gopaiah, K Ashok Kumar

Abstract:- This paper exhibits a three-stage multilevel power factor rectification (PFC) rectifier utilizing multistate switching cells. A summed up converter structure is displayed in view of the connection of exchanging systems of Vienna-sort rectifier topologies through multi inter phase transformers (MIPTs). The resulting rectifier presents the natural advantages to the utilized building blocks and the ones included by a secluded development that enables the diminishment of uninvolved segments and general misfortunes. The operation of the PFC rectifier is depicted, including appropriate modulation and control procedures. Plan rules for the magnetic components are determined for the MIPTs, help inductors, and power semiconductor gadgets. At long last, a lab model is utilized to present exploratory outcomes. This model is evaluated at 7.5 kW and utilizes a secluded structure to amass a four legs for each phase rectifier. Proficiency over 98% from 40% load and IEC61000-3-2requirements are watched.

Fuzzy based Hybrid Distributed System Integration with grid

Authors:- G Vijaya Surekhar, V N Malleswari

Abstract:- This paper depicts about vulnerabilities relief in joining of sun oriented power era and geothermal power era utilizing voltage source converter (VSC) PI controller. The power era of PV framework is persistently varies, because of this HVDC back-back association is utilized for coordination. The principle preferred standpoint of HVDC is powerless matrix reconciliation; this situation is beneficial for WECS joining. VSC based all inclusive scaffold inverter with PI controller is utilized. The DC stack adjusting is finished with battery vitality stockpiling framework (BESS).

A Novel controller for Enhancement of MMC performance

Authors:- T Praveena, K Ashok Kumar

Abstract:- The measured multilevel converter (MMC) is an emerging topology for high-control applications and is considered as the improvement pattern of the high-voltage control converters. In this paper, general usage of the stage moved carrier adjustment with a capacitor voltage adjusting strategy for MMC is initially presented. At that point, the numerical examination of PS modulation for MMC is performed to recognize the PWM harmonic characteristics of the yield voltage and the circling current. Moreover, impact of the transporter relocation edge amongst the upper and lower arms on these music is additionally contemplated. Using this examination, the ideal relocation points are determined for the output voltage harmonics minimization and the coursing current harmonics cancelation, individually. The symphonious elements of the line-to-line voltage and the dc-connect current are likewise investigated. Moreover, an expansion of the PSC adjustment for MMC with full-connect sub-modules is additionally proposed which can increment the equivalent exchanging recurrence of the yield voltage and circulating current by two times contrasted and the regular MMC. Finally, the discoveries are checked tentatively on a model of MC.

SVPWM based Multilevel Boost converter for PFC correction

Authors:-D Bhavani, N Balakrishna

Abstract:-This paper presents a PR controller with SVPWM rectifier with power consider redress (PFC) in view of a modified three-level lift converter topology. In correlation with the ordinary lift based frameworks and other multi-level arrangements the new PFC rectifier has fundamentally littler inductor and lower exchanging misfortunes. The upgrades are accomplished by supplanting the yield capacitor of the lift converter with a non-symmetric dynamic capacitive divider and by using downstream converter arrange for the divider charge adjusting.

SoA Based Carry Lookahead Adder Using Reversible MZI

Authors:- Andiboyina Vijayasri, B. Murali Krishna

Abstract:- Carry look ahead adder (CLA) is the fastest of all adders and achieve speed through parallel carry computations. This method does not require the carry signal to propagate stage by stage. In this project, an efficient reversible implementation of Carry-Look ahead Adder (CLA) in all-optical domain is presented. Now-adays, semiconductor optical amplifier (SOA)- based Mach–Zehnder interferometer (MZI) plays a vital role in the field of ultra-fast all-opsoa-based-carry-lookahead-adder-using-reversible-mzitical signal processing. We have used all optical based Mach-Zehnder Interferometer (MZI) switches to design the CLA circuit implementing reversible functionality. The design of reversible circuit with optical technology can be implemented using Semiconductor Optical Amplifier (SOA) based Mach-Zehnder Interferometer (MZI) switch, which has significant advantages of high speed, low power, fast switching time and ease of fabrication. A conventional carry select adder is still power consuming due to the dual ripple carry adder structures having cin as ‘0’ and ‘1’. An efficient method which replaces the ZCLA instead of RCA with cin=’0’in the conventional CSLA is efficient and this CLA with the Mach zehnder interferometer technique can be more helpful and advantageous for the digital optical fibre communications.

Authentication of Ranking Deceit for Mobile Apps

Authors:- Yalavarthipati Shaik Reshma, B Lakshmikanth

Abstract:- The Mobile App is a very popular and well known concept due to the rapid advancement in the mobile technology. Due to the large number of mobile Apps, ranking fraud is the key challenge in front of the mobile App market. Ranking fraud refers to fraudulent or vulnerable activities which have a purpose of bumping up the Apps in the popularity list. While the importance and necessity of preventing ranking fraud has been widely recognized. In the existing system the leading event and leading session of an app is identified from the collected historical records. Then three different types of evidences are collected from the user feedbacks namely ranking based evidence, rating based evidence and review based evidence. These three evidences are aggregated by using evidence aggregation method. In the proposed system additionally, we are proposing two enhancements. Firstly, we are using Approval of scores by the admin to identify the exact reviews and rating scores. Secondly, the fake feedbacks by a same person for pushing up that app on the leader board are restricted. Two different constraints are considered for accepting the feedback given to an application. The first constraint is that an app can be rated only once from a user login and the second is implemented with the aid of IP address that limits the number of user login logged per day. Finally, the proposed system will be evaluated with real-world App data which is to be collected from the App Store for a long time period.
Active periods, namely leading sessions, of mobile Apps. Such leading sessions can be leveraged for detecting the local anomaly instead of global anomaly of app rankings. Furthermore, we investigate three types of evidences, i.e., ranking based evidences, rating based evidences and review based evidences, by modeling apps’ ranking, rating and review behaviors through statistical hypotheses tests.
In Rating Based Evidences, specifically, after an App has been published, it can be rated by any user who downloaded it. Indeed, user rating is one of the most important features of App advertisement. An App which has higher rating may attract more users to download and can also be ranked higher in the leader board. Thus, rating manipulation is also an important perspective of ranking fraud. In Review Based Evidences, besides ratings, most of the App stores also allow users to write some textual comments as App reviews. Especially, this paper proposes a simple and effective algorithm to recognize the leading sessions of each mobile App based on its historical ranking records. This is one of the fraud evidence. Also, rating and review history, which gives some anomaly patterns from apps historical rating and reviews records.
The rest of the paper is organized as follows: Section II, presents the literature survey over the related work. In section III, proposed system is presented in section IV, implementation for each modules. Finally, the section V concludes the review paper.