Rajasthan Technical University

About: Rajasthan Technical University is a education organization based out in Kota, Rajasthan, India. It is known for research contribution in the topics: Photovoltaic system & PID controller. The organization has 716 authors who have published 1084 publications receiving 4530 citations. The organization is also known as: RTU.

Prediction of irradiation: A comparative study of ANFIS

Abstract: The accurate information of solar isolation data and its components are fundamental specifications for the purpose of designing, installation and monitoring of solar power plant. The beam components is easily available but the diffuse component is rarely available for each location around the globe. During the past decades, the most of work is done on prediction of global and diffusion radiation on plane surface by using metrological and geographical data. In this study, predicting the global solar isolation on inclined surface by using Adaptive Neural Fuzzy Interference System (ANFIS) method with different member function on the bases of input parameters such as global irradiance, extraterrestrial isolation, incident angle and zenith angle. This study is based on Liu & Jorden isotropic diffuse radiation model. The statistical indices such as RMSE, RMBE and R2 are used to predict the solar isolation on tilted surface. The results show that the Triangular-shaped member function estimate the better prediction as compare to other member functions at location Jodhpur, Bharat.

Performance analysis of chebyshev UWB bandpass filter using defected ground structure

Abstract: This paper deals with design and analysis of Chebyshev ultra-wideband (UWB) bandpass filter with wide passband using defected ground structure. The BPF is constructed from the step impedance lowpass filter (LPF), optimum distributed highpass filter (HPF) and four rectangular shaped DGS were etched on the ground plane. Furthermore, the LPF and HPF are designed, based on their equivalent L-C circuit on Electromagnetic (EM) Circuit Simulator. The calculation of lumped element values is done and performance analysis curves are plotted for these filters which are compared to their practical response as done on CST. The analysis on Electromagnetic (EM) Circuit Simulator is done for UWB here, but the same can be done for any general frequency band on microwave range. Further, a compact UWB bandpass filter is designed on FR-4 substrate of thickness h = 1 mm with Dielectric constant = 4.05 is and it occupies 22.4 mm × 12 mm die of area. The working frequency of UWB filter is 3.1 to 10.6 GHz. The design of this filter is simulated on CST Microwave studio showing the desired simulation response.

Improvement in QoS of MANET Routing by finding optimal route using Mobile Agent paradigm and Intelligent Routing Decision using Fuzzy Logic Approach

Abstract: Wireless network can be mainly categorized in two broad classes called infrastructure based and infrastructure less networks. Infrastructure based networks with a centralized control unit called base station. Existing infrastructure based cellular network can carry both data and voice. Second is infrastructure-less networks and Mobile ad-hoc Networks (MANETs) come under this category. An ad-doc network work as a specially appointed system is an accumulation of specialized devices that desire to impart, yet have no fixed foundation accessible, and have no pre-decided association of accessible connections. In the absence of centralized administration, and its inbuilt unique characteristics like resource scarceness, high mobility of nodes, quickly changing network topology makes Quality of Service (QoS) routing a challenging task in MANET. In this research paper we proposed two optimal routing, first routing technique is used to improve quality of service of Ad-hoc On demand Distance vector (AODV) routing protocol by using mobile software agent (MSA) paradigm taking multiple parameters Received Signal strength, Remaining Energy, Queue length, and delay together for finding path from source to destination node Simulation results prove that our proposed mechanism is capable to improve the quality of traditional AODV routing protocol using mobile agent technique and second technique is based on fuzzy logic technique for finding optimal routing decision with four complex QoS matrices for MANET environment and capable to take optimal routing decision.

Performance analysis of WOA optimised PID controllers for LFC of interconnected thermal power systems

Abstract: Nature inspired whale optimisation algorithm (WOA) has been implemented for load frequency control (LFC) of two-area interconnected non-reheat thermal power systems in order to maintain the system frequency at a prescheduled value in the presence of disturbances. Two similar PID controllers have been used in each area and control optimisation problem for proper tuning of controllers' parameters is defined by considering the integral of time multiplied absolute error (ITAE) as an objective function. The superiority of WOA optimised PID controllers has been established by comparing the results with other existing approaches such as; BFOA/PI, DE/PI, NSGA-II/PI, GSA/PI and GWO/PI for the same system in the presence of load changes of different magnitude and location. For performance analysis, the percentage reduction in ITAE, settling times of frequency & tie line power deviations and minimum damping ratio (MDR), etc. have also been calculated. The simulation results show that the WOA/PID approach gives far better results in terms of system dynamic responses, ITAE, MDR, settling times and overshoots of Δf1, Δf2 and ΔPTie for the same system under study when compared with some existing approaches.