Utilization of Active Diodes in Self-powered Sensorless Three-phase Boost-rectifiers for Energy Harvesting Applications
نویسندگان
چکیده
The main contribution of this paper is the use of sensorless active diodes to generate the gate signals for a three-phase boost-rectifier with a self-powered control scheme. The sensorless operation is achieved making use of the gate control signals generated by the active diode schemes on each of the switching devices using a pulse width half-controlled boost rectifier modulation technique (PWM-HCBR). The proposed scheme synchronizes the gate control signals with a three phase voltage supply. Autonomous operation is obtained making use of the output DC bus to feed the control circuitry, the active diodes and the driver circuitry. The three-phase boost-rectifier is supplied by a three-phase permanent magnet electric generator powered by a solar concentrator dish with variable voltage and variable frequency conditions. Experimental results report an efficiency of up to 94.6% for 25 W and an input of 3.6 V peak per phase with 450.
منابع مشابه
Low Voltage Energy Harvesting by an Efficient AC-DC Step-Up Converter
In this paper, a direct ac-to-dc power converter is proposed for efficient energy harvesting from the low voltage inertial micro generators. The conventional power converters use diode bridge rectifiers and condition the micro generator outputs in two stages. Hence, they are inefficient and may not be a feasible option for very low voltage micro generators. Moreover, they are not conducive for ...
متن کاملAn Active Input Current Waveshaping with Zero Switching Losses for Three-Phase Circuit Using Power Diode
In this paper a zero voltage switched active network (Fig. 1) which can be used in conjunction with single-phase or three-phase ac to dc diode rectifiers is presented. It is shown that application of the proposed switching network in threephase ac to dc boost converter yields zero switching losses while maintaining a unity input power factor. Active network capacitor, Cs, diodes D7, and D8, mai...
متن کاملThe Utilization of High Fidelity Simulation in the Support of UAV Launch Phase Design: Three Case Studies
Improvement of the launch phase of a jet powered Unmanned Aerial Vehicle (UAV) with Jet Assisted Take Off (JATO), has been the subject of attention in the UAV industry. Use of flight simulation tools reduces the risk and required some amount of flight testing for complex aerospace systems. Full nonlinear equations of motion are used to study and simulate this maneuver and three case studies of ...
متن کاملAn Interleaved Configuration of Modified KY Converter with High Conversion Ratio for Renewable Energy Applications; Design, Analysis and Implementation
In this paper, a new high efficiency, high step-up, non-isolated, interleaved DC-DC converter for renewable energy applications is presented. In the suggested topology, two modified step-up KY converters are interleaved to obtain a high conversion ratio without the use of coupled inductors. In comparison with the conventional interleaved DC-DC converters such as boost, buck-boost, SEPIC, ZETA a...
متن کاملA highly shape-adaptive, stretchable design based on conductive liquid for energy harvesting and self-powered biomechanical monitoring
The rapid growth of deformable and stretchable electronics calls for a deformable and stretchable power source. We report a scalable approach for energy harvesters and self-powered sensors that can be highly deformable and stretchable. With conductive liquid contained in a polymer cover, a shape-adaptive triboelectric nanogenerator (saTENG) unit can effectively harvest energy in various working...
متن کامل