Delivering Smooth Power to Pulse-Current Battery Chargers: Electric Vehicles as a Case in Point

An Improved Rainflow Algorithm Combined with Linear Criterion for the Accurate Li-ion Battery Residual Life Prediction

“…Take out all the full cycles and note the amplitude of each cycle. (5) The divergent convergent load time history remaining after counting in the first stage is equivalent to a convergent divergent load time history, and the second stage rain flow counting is performed. The total number of counting cycles is equal to the sum of the counting cycles of the two counting stages.…”

“…Li-ion battery has the advantages of high energy density [1][2][3][4], long life, high output power [5] and high-cost performance, which plays an important role in the field of renewable energy [6]. With the new energy industry more and more attention, the use of Li-ion batteries is increasing year by year.…”

Important Technical Considerations in Design of Battery Chargers of Electric Vehicles

“…In this paper, a well-known topology for battery chargers and charging stations of EVs was selected, and then personal experiences in some particular aspects of power electronics in the design of EV battery charging systems were explained in detail. The purpose of this paper is to explain challenges and technical considerations in the projects published in [1][2][3][4][5][6]. In [1], a special parallel capacitor battery structure for an EV charging system founded on a pulse-current charging-discharging method with its control system has been put forward to exchange constant continuous power in front of drastic changes in the battery power.…”

“…The purpose of this paper is to explain challenges and technical considerations in the projects published in [1][2][3][4][5][6]. In [1], a special parallel capacitor battery structure for an EV charging system founded on a pulse-current charging-discharging method with its control system has been put forward to exchange constant continuous power in front of drastic changes in the battery power. In [2], two DC-DC converters with their control systems have been proposed for EV charging systems.…”

“…In [4,5], an EV battery charger was introduced such that it can help a power system and participate in vehicle-to-grid technology. The designs of all EV charging systems in [1][2][3][4][5][6] have many areas that can be carefully examined, such as cost, volume, weight, conduction losses, switching losses, microcontrollers, isolation, voltage and current levels, voltage and current ripples, battery specifications, charging-discharging algorithms, control system, switch gate drivers, and efficiency of battery chargers of EVs. In this paper, these areas are spelled out.…”