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This paper presents a versatile monitoring system for solar photovoltaic (PV) system under real-time environment. The parameters of solar PV system such as panel voltage, panel current, irradiance level and module temperature are acquired through various compact Data Acquisition (DAQ) modules. These parameters are utilized to plot the dynamic characteristics of the PV module such as I-V and P-V curves,...
Wireless network existing in the present generation of communication is homogeneous wireless network, which work in between the same connectivity up to the particular region with specified data rate by standard. We are proposing a heterogeneous wireless network which work in coexistence with other network, which evolve together to communicate over a large region of operation and provide Always Best...
KY Boost converter is a negative output voltage DC-DC converter, that is polarity of output voltage is the reverse of input voltage. KY Boost converter operates in continuous conduction mode and it has non-pulsating output current, which decreases the current stress on the output capacitor as well as reduces the output ripples. Real time simulation of KY Boost converter is useful in testing the converter...
SEPIC (Single Ended Primary Inductance Converter) is a dc-dc converter which can provide an output voltage either greater than or less than the input voltage. Basically it is similar to a buck-boost converter. The output voltage polarity of a SEPIC is non-inverted whereas the output voltage polarity is inverted in a buck-boost converter. SEPIC converters are widely used in battery operated equipment,...
Determination of relative position between two objects is an important task during space activities like automated space rendezvous and docking. The relative orientation measured in terms of six Degree of Freedom (6DOF) vector. The six Degree of Freedom vector can be determined by using a sensor system consists of a passive reflective pattern on the target vehicle, imaging this reflective pattern...
This paper proposes use of a contour evaluation program to aid in exploring the structure of the boundary of the solutions of the power flow problem. A simple example of a two bus system has been considered to illustrate the complex nature of the power flow solution space. Boundary curves have been obtained using contour evaluation program which show the voltage stability limits, system performance...
Diabetic Retinopathy (DR) is usually diagnosed and graded based on the incidence and severity of micro-aneurysms, hemorrhages, macular/retinal edema andexudates on the fundus images. Similarly, optical Cup to Disc Ratio (CDR) is another feature based on which the progression of glaucoma is evaluated. To enable easy identification of these clinical indications from the fundus images, their contrast...
Load frequency control (LFC) is major issue in the field of power system engineering. The primary reason behind to do a study on LFC is to maintain the balance between generated power and demand of consumer without compromising any deviation in the nominal frequency and schedule tie-line power. This paper deals with application of classical controller like linear quadratic regulator (LQR) and differential...
This paper presents a design of a self-tuned adaptive neuro-fuzzy torque controller (NFTC) technique with reduced number of membership functions (MF) applied to a decoupling linearized induction motor (IM) drive for enhancing the performance. The decoupling controlled of IM is modeled by making the flux and torque decoupled and simulation is carried out in the stationary reference frame with linearized...
The work describes the modeling and simulation of a renewable energy based hybrid power system in the aspects of improving power quality and system reliability. An Energy Management and Control Unit (EMCU) is also proposed. For meeting the sustained load demands during varying natural conditions, different renewable energy sources and converters need to be integrated with each other. The paper focuses...
It is well known that, electrical power distribution network (PDN) is a very complex dynamic system. In order to analyze instantaneous behavior of PDN, an efficient Electromagnetic Transient (EMT) simulation framework is required. In this paper a PDN model of substation of Guwahati city, India is presented for EMT analysis. The EMT problem formulation is based on trapezoidal integration for lumped...
Simulation is an extremely valuable tool for designing, operating and understanding complex systems in Power systems and Power Electronics. Broadly simulation can be of two types, Off-line and Real-time Simulation. Off-line simulation uses a digital computer and real time simulation uses a dedicated high speed digital processing hardware. Real time simulation allows analysis of a physical system in...
In this paper, we present an integrated approach for path planning and control for autonomous mobile robots. Typically, path planners pass on the trajectory coordinates to a motion controller that controls steering or curvature of the autonomous robot. However, these approaches ignores the smoothness of trajectory or staying on the path at different times. Our proposed system is a novel approach,...
This work is a detailed investigation of the performance of the PV module under varying climatic conditions. A refined approach for PV modeling which incorporates the accurate estimation of all its parameters under different operating conditions is presented. Also the equations for open-circuit voltage and maximum voltage of PV module have been put forth to correspond to realistic climatic condition...
Now a days LEDs are replacing traditional incandescent and fluorescent lamp in domestic and commercial applications due to their advantages of high efficiency, low power consumption and long life. The ripple content of current in both sides is reduced and performance improvement is obtained by controlling the forward current of LED using isolated/non-isolated dc-dc converters. Even though cuk and...
This work describes the study of various controllers on a two wheeled self-balancing robot. The concept behind the two wheeled self-balancing robot is based on the principle of an inverted pendulum system. The model is constructed on the basis of state space design of cart and pendulum system. The main focus of the work is to develop an efficient controller to act robot in a real time environment...
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