Power electronics is a field of constant evolution. Power grids are seeing developments, and the electrification of the transport sector requires better motor drives. Power electronics plays a key role with new devices such as wide bandgap devices and power converters that convert alternating current into direct current and vice versa, or change the voltage or frequency. This expanded 2nd edition of Power Electronic Converters and Systems offers an update in two volumes, with a systematic revision of all chapters plus some all-new chapters. An overview of modern power electronic converters and systems is provided, and their applications explored. Devices covered include semiconductor switches, various converters, switching power supplies, and smart power electronic modules. Applications encompass different motor and induction motor drives, renewable energy, distribution and microgrids, automotive and shipboard power systems and wireless power transfer, as well as advanced control. In volume one, chapters cover semiconductor power devices, multilevel and multi-input converters, modular multilevel cascade and matrix converters, soft-switching, source power, and DC/DC converters, smart power electronics, motor drives, switched reluctance machines, reliability in power electronics and hardware-in-the-loop. In volume two, chapters cover wind and PV energy principles, charging and battery management, DC-DC switched capacitor converters, batteries, shipboard power systems, advanced control and power filter control, more electric aircraft, fault ride through strategies for grid-connected PV, support functions and grid-forming control. Both volumes off key insights and up-to-date information for researchers and practising engineers working in power electronics, converters and machine drives, wind and PV energy.