This special issue presents a review of recent advances in electrochemical energy storage, battery management systems, and power electronics for grid-scale energy storage applications. The importance of energy storage across the entire electricity infrastructure is growing rapidly. In particular, this is highlighted by the urgent need to address the intermittency challenge caused by the large-s...

A Hybrid algorithm of maximum-power-point-tracking (MPPT) controller for a photovoltaic (PV) energy conversion system is presented. Using the slope of power versus voltage of a PV array, the proposed MPPT controller allows the conversion system to track the maximum power point very rapidly. As opposed to conventional two-stage designs, a single-stage configuration is implemented, resulting in s...

Modeling of power electronics circuits presents significant challenges due to the non-linear time-varying behaviour of this kind of system. It is common practice to operate with families of models of different complexity depending on the analysis goal. In this paper we propose a wavelet-based approach as a unifying framework able to provide multi-resolution capabilities and consequently signifi...

This paper presents the complete modeling and real-time simulation of wind turbine driven doubly-fed induction generator (DFIG) which feeds ac power to the utility grid. For that, two pulse width modulated voltage source converters are connected back to back between the rotor terminals and utility grid via common dc link. It is found that there are so many limitations in the conventional contro...

This paper studies the energy conversion efficiency for a rectified piezoelectric power harvester. An analytical model is proposed, and an expression of efficiency is derived under steady-state operation. In addition, the relationship among the conversion efficiency, electrically induced damping and ac–dc power output is established explicitly. It is shown that the optimization criteria are dif...

Abstract A protocol conversion method of intelligent distribution equipment for a new power system is proposed to aim at the problems short data reading distance and high packet loss rate in current process equipment. The divided into two parts, uplink channel, downlink channel. multi-protocol designed. data-based scheme set up realize bidirectional protocol. original gateway replaced by CAN-PR...