A Review of on-Board Integrated Electric Vehicles Charger and a New Single-Phase Integrated Charger

Abstract

To avoid weight, size and cost constraints, on-board integrated charging devices use the traction system components. In this paper, the topologies of on-board integrated electric vehicles (EVs) chargers are reviewed. The topologies of on-board integrated chargers can be classified into three groups based on the integrated components. The first type is that only converter is integrated as one part of the on-board charger. While the grid side also needs filter inductors. The second group is based on the switched reluctance motor, which can integrate both the converter and the motor windings into the on-board charger. This is followed by the integrated charger based on permanent magnet motor (PM) and induction motor (IM). The last group also integrates both the converter and the motor windings. Then this paper gives a new single-phase on-board integrated charger based on AC motor. Parts of inverter are used as single-phase rectifier, parts of inverter coupled with one capacitor and inductor reconstruct an active power filter (APF) circuit, and the motor windings are used as grid-side filter inductors. As the existence of APF circuit, the proposed integrated charger can eliminate the second harmonic ripple and the quasi-Z-source network just need small capacitor and inductor to suppress ripples. Using the proposed topology, the motor can keep still in charging mode. A 2.2-kW prototype is designed to give the experimental results.Index Terms-Active power filter (APF), integrated charger, quasi-Z-source.

A Review of Integrated On-Board EV Battery Chargers: Advanced Topologies, Recent Developments and Optimal Selection of FSCW Slot/Pole Combination

“…A single-phase integrated OBC charger achieving a power factor of 0.992 has been presented in [49]. The proposed topology comprises: a single-phase inverter, a bidirectional Quasi-Z-source converter, an active power filter (APF) and a single-phase surface-mounted permanent magnet synchronous (SMPMS) machine, as depicted in Fig.…”

“…8 [37]. Unlike three-phase charging, the battery current under single-phase charging will experience a pulsating current component at double the line frequency, which has been addressed using innovative converter topologies in [49]. The voltage-oriented control technique can also be utilized for single-phase charging taking into account that there is no decoupling transformation applied to either the grid voltage or the machine currents.…”

A Review of Bidirectional On-Board Chargers for Electric Vehicles

“…Many papers investigate integrated OBCs with electrical motor or contactless inductive charging technologies. However, they do not concentrate on the research and application of the bidirectional OBC [1], [13], [25], [26]. For bidirectional OBCs, some papers proposed advanced new two-stage or single-stage topologies, control strategy, and design optimization methods [16], [24], [27], which is summarized in the following section.…”

Condition monitoring of IGBT modules using online TSEPs and data‐driven approach

“…Apart from these, the usage of on‐board monitoring systems 9,10 which can detect an abnormality based on the threshold setting and stack it for future usage has been developed. The major drawback of these techniques is their detection time and inability to identify new failure mechanisms developing in the module 11 . Besides, an online condition monitoring algorithm is developed in Reference 12 for detecting the bond‐wire degradation in three phase three level neutral point clamped converters.…”