Loss Distribution Methodology with a Sense Of Emission Dispatch
Low Power Optimization Technique Based Linear Feedback Shift Register
Leakage Power Reduction Using Multi Modal Driven Hierarchical Power Mode Switches
Validation of IOV chain using OVM Technique
Performance of Continuous and Discontinuous Space Vector Pwm Technique for Open End Winding Induction Motor Drive
Electronic Circuit Design for Electromagnetic Compliance through Problem-Based Learning
Trioinformatics: The Innovative and Novel Logic Notation That Defines, Explains, and Expresses the Rational Application of The Law of Trichotomy for Digital Instrumentation and Circuit Design
Design Of a Novel Gated 5T SRAM Cell with Low Power Dissipation in Active and Sleep Mode
A Two Stage Power Optimized Implantable Neural Amplifier Based on Cascoded Structures
An Efficient Hybrid PFSCL based Implementation of Asynchronous Pipeline
The increased effect of process variation and increase in parasitic resistance and capacitance in nano scale technologies at lower supply voltages, and continuous increase in the size of SRAMs require additional techniques, such as write assist and read assist to improve the write-ability, readability, and stability of SRAM memories. The SRAM bit cell write-ability is very critical at lower voltages. The impact of the write assist technique is analysed in this paper which will improve the write-ability of the SRAM memory and also its impact on the performance, power, and area of the chip. The Negative Bit-line Voltage Bias scheme is discussed and executed at the transistor level using conventional SRAM cell (6T). With the write assist circuit, the implemented SRAM bit cell efficiently performs a write operation at lower voltages. The main objective of this paper is to improve the write-ability of the SRAM cell at lower supply voltage using Negative Bit-line Write Assist Circuit.
The main contribution of the paper is the proposal of Fuzzy Logic Controller (FLC) for three phase transformerless neutral point clamped inverters to eliminate harmonics in photovoltaic systems without requiring any modification on the multilevel inverter or any additional hardware. Multilevel level inverter technology has been widely used in the high power Medium voltage energy control systems [1]. In this paper, the authors have proposed a Fuzzy Logic Controller for three phase neutral point clamped inverter with PV system. They have used the neutral point clamped inverter in this paper because NPC inverter results in the low frequency voltage harmonics in the NP, which is the point between the two DC-link capacitors [7]. In primary side, PV system eliminates the harmonics by using the FLC, and the voltage controller is to produce regulated output voltage with low distortions under all loading conditions. A Fuzzy Logic Controller is developed by using MATLAB/SIMULINK for the chosen inverter having applications in the PV system. FLC is found to have better performance. This paper presents a methodology to generate gating signal to control NPCVSI using MATLAB/SIMULINK.
In the socio-economic development, the requirement of energy is considered as the most essential element. Renewable energy sources can play an enormous role to fulfill this need of energy. These sources will not only improve independency of energy, but also help in many ways, such as mitigation of climate change, swift development of rural areas, improved health status, and will be the best way to move towards sustainable development. Among all the renewable energy sources, the wind energy plays a key role to reduce fossil fuels dependency and acts as a helpful tool to conflict global warming. Wind energy is indeed a form of solar energy produced by differential heating on the earth surface. Wind's kinetic energy can be captured and converted into electricity via wind turbines. This paper presents the analysis of wind energy conversion system employing DFIG when it is connected to the grid. The Back to Back Voltage Source Converter is used for converting the unregulated generated AC into regulated AC. The sinusoidal pulse width modulation technique is used for generating the control pulses to the converter
This paper proposes a transformerless hybrid series active filter which is connected to a single phase distribution feeder. This system uses a sliding mode controller and filtering techniques to reduce voltage and current harmonics for a typical nonlinear load (VSC). The reactive power compensation is done by injecting sag, swell, and distortions at grid side of Point Common Coupling (PCC). In the existing methods to compensate harmonics, PI controllers were to control DC link voltage, there maybe presence of some amount of steady state error and also this PI controller may not work under continuous condition mode. So the authors have opted for Fuzzy Logic Controller (FLC) technique to improve steady state error and the system performance should be improved by reducing the harmonics. Both the existing PI based and fuzzy based controllers’ results are compared and are shown on Matlab/simulink.
Microgrids provide a powerful solution for enabling the conversion of the electric grid to a more distributed architecture and providing greater flexibility of electricity service to customers. Microgrids are small, independent electric-power grids, including both sources and loads. Microgrids have the capability to connect and disconnect effortlessly from the traditional grid. A microgrid comprises distributed generation, energy storage, loads, and a control system that is capable of operating in grid-tied mode and islanded mode. The concept of microgrid including it's architecture, components, types, mode of operation, various projects, benefits, and the challenges of microgrids have been summarized in this paper.