Dual-source trolleybuses powered by on-board battery and grid electricity are highly promising for reliable and efficient public transportation in populated cities due to their unique advantages in fuel economy, cost reduction, and passenger capacity. To maximize capacity of service and enhance safe and reliable operation, advanced power management strategies are of critical importance.  High mobility of buses and new configurations of power supply network configurations introduce challenging power management issues on their dedicated supply power grids. 

Integrating with the neighboring information based consensus control method for power management, we include line power loss in power management strategies and introduce a new optimal power management methodology. Using only neighborhood information exchange among feeder lines in the network, the distributed consensus-type control accommodates both current balancing and power loss reduction with fast convergence. One critical finding is that the local recursive optimization algorithm actually achieves the global optimal solution asymptotically. The power system configurations of the Beijing Dual-Source Trolleybus System are used for simulation case studies on the new power management methods. 

Le Yi Wang  received the Ph.D. degree in electrical engineering from McGill University, Montreal, Canada, in 1990. Since 1990, he has been with Wayne State University, Detroit, Michigan, where he is currently a professor in the Department of Electrical and Computer Engineering. His research interests are in the areas of complexity and information, system identification, robust control, H-infinity optimization, time-varying systems, adaptive systems, hybrid and nonlinear systems, information processing and learning, as well as medical, automotive, communications, power systems, and computer applications of control methodologies. He was a keynote speaker in several international conferences. He serves on the IFAC Technical Committee on Modeling, Identification and Signal Processing. He was an Associate Editor of the IEEE Transactions on Automatic Control, Journal of Control Theory and Applications, Journal of Systems Science and Complexity, and some other journals.  He was a Visiting Faculty at University of Michigan in 1996 and Visiting Faculty Fellow at University of Western Sydney in 2009 and 2013. He is a member of a Foreign Expert Team in Beijing Jiao Tong University and a member of the Core International Expert Group at Academy of Mathematics and Systems Science, Chinese Academy of Sciences. He is a Fellow of IEEE.