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This research assesses the feasibility of using artificial neural networks (ANN) to predict and improve the spatial distribution of solar radiation data, using Peninsular Malaysia as a case study. This peninsula has seas to the east and west that control cloud formation and rain throughout the year. A rugged mountain range bisects the length of the peninsula creating a complex topography. These features...
Today's technology in microprocessors has significantly improved as operation above Mhz range for microcontroller and digital signal processing (DSP) are easy to obtain and inexpensive to own. Since reactive components such as transformers, capacitors, and inductors are frequency dependent devices, using higher frequency will significantly reduce the component size. This leads to many developments...
This paper proposed a technique to identify Proton Exchange Membrane Fuel Cell (PEMFC)'s parameters using an optimization approach. This paper present the application of particle swarm optimization (PSO) based algorithm known as local optima avoidance particle swarm optimization (LOAPSO) in extracting parameters from PEMFC. The proposed technique is used to identify the PEMFC parameters in term of...
This paper presents the design process of a slotted TORUS axial-flux permanent-magnet motor suitable for direct drive of an electric vehicle through sizing equation and Finite Element Analysis. AFPM motor is a high torque density motor which can be easily and compactly mounted into the automobile's wheel fitting the rim perfectly. A double-sided slotted AFPM motor with 6 rotor poles for high torque...
This paper presents a simplified self-tuned Sugeno type neuro fuzzy controller (NFC) based direct torque control (DTC) scheme for induction motor (IM) drive. A simple tuning algorithm is developed based on the reference and actual acceleration of the motor. The online tuning strategy adjusts the parameters of the consequent layer of the NFC in such a way to minimize the square of the error between...
This paper introduces an implementation of Fuzzy Logic Controller (FLC) for the single-ended primary-inductor converter (SEPIC) that control the maximum power point tracking (MPPT) signal together with the cascaded single-phase inverter. The extracting of the maximum power through using the SEPIC fuzzy controller is considered the main improvement here. Fuzzy-controlling in duty cycle increases/decreases...
This paper presents a modeling and simulation of an integrated SEPIC converter with a multiplier cell for MPPT implementation in standalone photovoltaic application. An integrated SEPIC converter with a multiplier cell is proposed for the use as a high gain step-up converter and its semiconductor switch operates in continuous conduction mode (CCM). This paper describes the operational principles of...
Introduced here is an implementation of an optimized Proportional, Integral, and Derivative (PID) controller that controls single-phase inverter and single-ended primary-inductor DC/DC converter (SEPIC). The main improvement is the endowment of classical PID controller with gradient-descent optimization method, which generates exact values for PID-controller parameters Kp, Ki, and Kd, which in turns...
This paper presents a single-phase multi-string five-level PV inverter topology for grid-connected photovoltaic (PV) systems with a novel PWM control scheme. Three PV strings are cascaded together in parallel configuration and connected to a five-level inverter to produce output voltage in five levels: zero, +1/2Vdc; Vdc; −1/2Vdc and −Vdc. Two reference signals identical to each other with an offset...
This paper presents a comparison between TORUS and AFIR, the two topologies for double-sided axial-flux permanent-magnet machines. Their slotted and non-slotted topologies were investigated and compared in terms of power density and torque quality. The critical field analysis of the topologies was by finite element method. Results show TORUS topology's high power-density in high current-density and...
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