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This paper presents a novel subthreshold Darlington pair based negative bias temperature instability (NBTI) monitoring sensor under the stress conditions. The Darlington pair used in the circuit provides the stability of the circuit and the high input impedance of the circuit makes it less affected by the PVT variations. The proposed sensor provides the high degree of linearity and sensitivity under...
The study in this article focuses on chattering free higher order sliding mode control (HOSMC) and continuous time event triggered higher order sliding mode control (ET-HOSMC) for nonlinear uncertain systems. Conventional sliding mode control is affected by high-frequency oscillation in the control signal known as chattering. Chattering in the control signal overshadows the main advantages of sliding...
In this paper, analytical and simulation based analysis to verify the inherent properties of SiGe HBT is done. The major performance parameters of SiGe HBT are cut-off freuency fT, maximum oscillation frequency fmax, base transit time τb, current gain β and electron mobility μn of SiGe base. These performance parameters are responsible for the reliability of SiGe HBT. Temperature is one of the major...
This paper proposes an optimised design approach for Multi-Modular (M-M), single-phase UPS inverters system. The Voltage Source Inverters (VSIs) have low output impedance for good voltage regulation, which conflict with the requirement of high impedance in the parallel configuration to restrain Inter-Modular (I-M) circulating currents. Conventional dual-loop approach of Proportional-Resonant (PR)...
Electrical drives are hefty tool have major contribution in most of the industrial and nonindustrial motion control applications. The electrical drive connected through a flexible shaft with a load can be modeled as a two inertia motor system. The proposed work deals with an easy-to-tune controller design strategy for two inertia motor system based on coefficient diagram method. Three speed control...
Power electronic converters having capability of driving hybrid (ac and dc) loads are becoming popular in specific applications such as standalone nanogrid. The proposed hybrid switched inductor impedance source converter (HLZSC) is derived from the switched inductor impedance source inverter (LZSI). It can independently regulate both ac and dc voltages in continuous conduction mode (CCM). However,...
The paper holistically discusses the analysis and simulation of simplified two diode model and its comparative analysis with the one and three diode models. The two diode model presented has been grounded on the interpretation of the output current equation. This model entails four parameters and condenses the complexity and the computational time considerably. I-V and P-V curves for two diode model...
This paper presents a novel CMOS folded cascode operational amplifier that leads to high PSRR and provides gain nearly equal to that of a two stage op-amp. The proposed design is implemented in GPDK 0.18μm CMOS technology. This op-amp uses a folded cascode structure in the output stage combined with the differential amplifier having PMOS input transistors to achieve good input common mode range and...
The point of this paper is to illustration a speed Controller of a DC motor by decision of a PID parameters using Genetic Algorithm (GAs), the DC motor is widely used as a part of various applications, for example, steel plants, electric trains, cranes and significantly more. DC could be spoken to by a nonlinear model when nonlinearities, for example, interesting dissemination is considered. To give...
The current paper shows the modeling, controller design and simulation of Permanent Magnet Synchronous Motor (PMSM) drive. As the paper deals with use of neural network methods to implement control of PMSM hence two control methods are used-For the inner loop current control the Hysteresis current controller is used and for the purpose of outer loop speed control the PI controller is used. The conventional...
The Fuzzy C Strange (FCS) points clustering algorithm takes a broad view of the Enhanced K Strange points clustering algorithm to permit a point to partly fit in to various clusters thereby generating a soft categorization for a given set of elements. To achieve this, the objective function of the hard Enhanced K Strange has been drawn-out by incorporating fuzzy membership degrees in clusters into...
This paper presents a novel fuzzy logic based incremental conductance (IC) for maximum power point tracking (MPPT). Due to the simplicity of control algorithm, it is easier to implement, modify and tune the control rules of fuzzy controller. The proposed MPPT method provides better dynamic performance than the conventional IC MPPT method especially under rapidly changing weather conditions. The simulation...
Social media has become an integrated part of the modern life-as-it has become one of the main instruments for sharing information, helping people, getting in touch with other people. Billions of people are using social networking websites such as Facebook, Twitter, and LinkedIn and generating huge amounts of data every day. Teaching,-particularly in higher education, has become more student-centered...
The concept of connecting group of electric vehicles (EVs) to the grid for power transaction is known as Vehicle-to-Grid (V2G). The EVs can be connected to the grid through V2G integrators and charging slots. The arrival of EVs in parking lot is time varying and random in nature and facilitating them to participate in power transaction is challenging and aggregator's responsibility. In this paper,...
RSSI method is used to measure the distance between beacon nodes and unknown node. This technique is not more relevant because the radio frequency (RF) signals are mostly affected with the noise available in the environment. Therefore, the accurate distance evaluation cannot possible between the known nodes and unknown nodes. RSSI method is having many accuracy challenges which need improvements....
The communication between the grid control center (GCC) to aggregator and aggregator to Electrical Vehicles (EV) is very important in order to support the grid requirements and meet the load demand in a short duration of time. The aggregator sends the power requirement information to EVs and EVs have to receive this information irrespective of either being parked or moving. The EVs which have received...
A new configuration of underwater robotic vehicle, named AQUAD, is presented here. It is a configuration with four thrusters in a plane which is inspired from an aerial quadrotor system. The system is designed considering the hydrodynamic challenges, and mathematically modelled using Newton-Euler approach. A PID controller is used to control the attitude of the system and implemented with the model...
Gas Insulated Substations (GIS) have found wide use in the past few decades. They offer several advantages over traditional Air Insulated Substations (AIS) which include superior dielectric strength, limited space requirements. Gas Insulated Busbar (GIB) is a critical part in a GIS since it serves as a component for tapping power for subsequent distribution to various interconnected components. Its...
We present an analytical model of 3D potential distribution for surrounding-gate (SurG) gate-all-around (GAA) MOSFET. The model is based on solution of Laplace's and Poisson's equations, where isomorphic polynomial functions are used to describe the potential distribution. The short channel effects are precisely accounted for by introducing z dependent characteristic length. From this, the device...
The symmetric/asymmetric planar slab waveguide is simplest waveguide structure to be analyzed. These waveguides are used in optical communication systems. In this paper we have derived the Eigenvalue equations by using the transmission line (TL) method for the case of symmetric/asymmetric planar slab waveguide structure. Earlier also the equations have been derived but no where the intermediate steps...
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