In this paper, we present and demonstrate a rotational energy harvesting generator and a method to improve its power density at low operational speeds. The electro-mechanical behavior of the generator is described using direct current (DC) motor theory. Reported results from a previously designed and tested maximum power point tracking (MPPT) circuit are discussed. The effects of imposing a cur...

This note describes a simple high-voltage dc generator which serves as an emergency power source for an ion vacuum pump during power interruptions, or failure of the main supply.

The common dc-bus concept has become an attractive solution for future aircraft electrical power systems. This article considers the case where a battery connected dc–dc converter and permanent magnet generator ac–dc are supplying dc bus. Applying proper modulation scheme converters, suppression of first-band harmonics ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink...

A sustainable residential microgrid composed of two distributed generation sources (photovoltaic panels and biofuel generator), one energy storage device (battery bank), and able of supplying both AC and DC loads, including a plug-in hybrid electric vehicle, is proposed. The microgrid can operate in grid-connected mode and island mode. It is composed of a main DC bus and also an AC bus. The cha...

This paper presents efficiency analysis of the power buffering in common voltage bus systems. Operation of the power buffering is briefly described with the power control experiments. The efficiency measurement setup and performed measurements from the charging and discharging events of the ultracapacitor module with the dc-dc converter are presented. As a result, the efficiency map of the dc-d...

This paper presents the Wind Energy Conversion System (WECS) combining Permanent Magnet Synchronous Generator (PMSG) with PSO-RNN controller. The proposed hybrid technique uses Particle Swarm Optimization (PSO) algorithm along with Recurrent Neural Network (RNN) which generates the optimal dc reference current. The proposed Maximum Power Point Tracking (MPPT) algorithm finds the maximum operati...

Nonlinear dependence is general in regulation mechanism of gene regulatory networks (GRNs). It is vital to properly measure or test nonlinear dependence from real data for reconstructing GRNs and understanding the complex regulatory mechanisms within the cellular system. A recently developed measurement called the distance correlation (DC) has been shown powerful and computationally effective i...

This work deals with design, modeling and simulation of the PI & the Fuzzy controlled DAB DC to DC converter systems. Open loop system is simulated with step change in input voltage. The output voltage in closed loop system is regulated using PI and Fuzzy controllers. The response of these two systems are compared. This converter has advantages like low EMI,less switching loss and improved dyna...

This paper presents the comparative analysis of improved quality three phase AC/DC boost converters, using SIMULINK. Comparison of three phase controlled single switch and six switch AC/DC boost converters have been done to identify the boost converter with low cost/small size/high efficiency for three phase system. Three phase AC/DC boost converters with improved quality in terms of power fact...

This paper investigates the integration of Superconducting Magnetic Energy Storage (SMES) System into the standalone Permanent Magnet Synchronous Generator (PMSG) based on Variable Speed Wind turbine (VSWT) in DC Microgrid system. The primary aim of SMES system is to retain power balance by drawing power during high wind generation and to extricate it during low power generation. An effective c...