Renewable energy sources bring to fore the significance of power electronics and corresponding control. The topic of wind turbine fault-tolerant control has emerged as a promising line of research for improving their market competence. The paper presents summarized control of wind turbine converter with a fault-tolerant control extension for generator electromechanical faults, based on a proper...

In order to carry out the simulation of the electrical noise, a pulse generator with fast rise time is needed. For this reason, the pulse generator using a coaxial cable is usually used. The pulse generator consists of a DC power supply, a charging resistor, a coaxial cable, a relay, and a terminator. Even the same voltage as charge voltage was outputted when the termination of the impedance wa...

For low power wind energy or micro-hydel applications of the order of 1-10KW, the lowest cost can be achieved if the generator is a simple squirrel cage induction motor used as a self excited induction generator (SEIG). The induction generator output can be rectified to produce a DC Bus from which a single phase inverter can feed the power supply grid. A SEIG requires capacitors to be connected...

This paper presents the design, analysis, and experimental results of a vibration-induced power generator with total volume of -1 cm3 that uses laser-micromachined springs as resonating structures. The goal of our research is to create a minimally sized electric power generator capable of producing enough voltage to drive low-power IC circuit systems or micro sensors for robotic and automation ...

Estimation of dynamic state variables in a multi-machine power system connected with UPFC is presented this paper, using Extended Kalman filter (EKF) algorithm. A two-generator test case used to estimate the generator rotor angle and speed. The DC link voltage additional variable be estimated. Dynamic mathematical modeling explained work. DSE done under transient condition three-phase fault.

This article present high efficient electromagnetic energy harvesting system for low frequency applications. The proposed circuit is composed of two stages. In the first stage (EM) rectifier uses an improved structure with active diodes powered internally by a passive ac-dc positive and negative voltage quadrupler. boost input peak 0.6 V to +0.8 -0.8 power unbalance-size comparators (Comp_1 Com...

This paper deals with the control of a grid-connected multi-source power system based on photovoltaic (PV) array and battery energy storage (ESS), taking into account variable intermittent characteristics solar irradiation level ambient temperature in Morocco. The PV generator is connected via dc-dc boost converter to common dc bus which through bidirectional ESS. output mains PWM dc-ac an LCL ...

In this paper, we study the unbalance problem of the input Direct Current (DC) voltages of the five-level neutral point clamping (NPC) voltage source inverter (VSI) used in hybrid renewable energy system. The hybrid system is composed of doubly fFed induction generator (DFIG) driven by wind turbine, the rotor is connected to three fivelevel NPC VSI feed by photovoltaic voltage source. We show p...

A monolithic CMOS voltage-mode, boost DC-DC converter with integrated power switches and on-chip pulse-width modulation (PWM) technique of switching control is presented in this paper. The PWM scheme used in this converter is constructed by a CMOS ring oscillator, whose duty is compensated by a pseudo hyperbola current generator to achieve almost constant frequency operation. The proposed boost...