The IET International Conference on Power Electronics, Machines and Drives (PEMD) has returned for its 7th iteration - PEMD 2014. PEMD carries a prestigious past and reputation, bringing together hundreds of power electronics and machines specialists from around the world to focus on the latest developments in the technologies and applications of electrical drives, machines and power electronic systems. PEMD showcases the latest advances in power technology, providing an insight into the technology roadmaps of the materials and components that are integral to driving innovation in this sector.