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In photovoltaic (PV) applications, power electronic converters play a vital role in transferring power from source to load. In general, operating voltages of PV arrays are low. To interface them with high voltage DC bus, a high voltage conversion system is needed which is provided by high gain topologies. Moreover, to increase the power density, efficiency of conversion and decrease cost, recent developments...
In this paper, fast acting dc-link voltage-based energy management schemes are proposed for a hybrid energy storage system fed by solar photovoltaic (PV) energy. Using the proposed control schemes, quick fluctuations of load are supplied by the supercapacitors and the average load demand is controlled by the batteries. Fast dc-link voltage, effective energy management, and reduced current stress on...
Carrier based PWMs are easy to implement for the multilevel inverters compared to space vector based implementation. This paper proposes two carrier based PWMs called Carrier Overlapped Sinusoidal PWM (CO-SPWM) and Carrier Overlapped Switching Frequency Optimal PWM (CO-SFO-PWM) methods for the three-level cascaded inverter. The basic idea uses adding a simple offset to the carriers that create an...
Two-phase induction motor (TPIM) can be controlled using a 4-leg voltage source inverter (VSI) topology. A space vector based space vector pulse width modulation (SVM) is proposed in this paper for the 4-leg VSI by decomposing it into a dual single phase full-bridge VSIs. The switching algorithm is envisaged by exploiting the principles of SVM of three-phase VSIs. The implementation of the proposed...
In this paper a fourth order front end boost converter topology with single sensor maximum power point (MPP) tracking algorithm is proposed for solar PV application. The detailed steady state analysis is presented under continuous inductor current mode and discontinuous inductor current mode of operation. Small-signal models of the proposed converter are derived using state-space averaging method...
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