Abstract-A power-based control method is proposed and analysed for a supercapacitor energy storage device. The performance of the energy storage device is examined by simulation and experimentally when operating on a high voltage DC bus with a multi-phase, fault-tolerant generator and a high power, pulsed load such as an actuation or avionic system. In the practical system the energy storage device is emulated using a bi-directional electronic load and a real-time simulation platform. The energy storage device is shown to minimise the DC bus transients and virtually eliminate the torque pulsation on the generator shaft. The system design and performance trade-offs are analysed. The experimental work uses a 70kW generator and 30kW programmable load emulation devices.

An adaptive energy management control with an integrated variable rate-limit function is described for an energy storage system (ESS). The proposed control protects the primary power source(s) in the system as effectively as possible from sudden load transients within the constraints of the available stored energy. The control can be designed to use the available energy more aggressively during load changes in the low-or high-power regions while offering the lowest possible rate-of-change of the main source power or offers a fixed minimum rate-of-change in power for a given total load and amount of energy. The control design is described in detail and demonstrated experimentally when applied to a supercapacitor ESS within an aircraft test facility. 0278-0046 © 2014 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information. Todd (M'08-SM'12) received the M.Eng. degree from The University of Manchester Institute of Science and Technology, Manchester, U.K., in 2001 and the Eng.D. degree from The University of Manchester, Manchester, in 2006. She was a Research Associate with the Rolls-Royce University Technology Centre from 2006 to 2010, and since 2010, she has been a Lecturer with The University of Manchester.Her research interests include advanced control methods, supercapacitor-based energy storage devices, and energy management for onboard electrical systems comprising multiple engine embedded generators and power electronic motor drive loads.

A comprehensive and unified analysis is presented for the discontinuous conduction/current mode operation of dual interleaved buck and boost converters with an interphase transformer or coupled inductors. By exploiting the symmetry in the current waveforms between the buck and boost modes of operation, detailed operating maps are derived showing the seven separate discontinuous operating patterns in each circuit. Boundary conditions and overall conversion characteristics are presented along with validation results from simulations and measurements on high‐power prototypes.

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