Decentralized Power Management for Electrical Power Systems in More Electric Aircrafts

Abstract

In order to implement reliable and flexible power management among energy sources, a decentralized power management approach for electrical power systems (EPSs) in the more electric aircraft (MEA) is studied. Considering the increased use of electrical power for various functions, the performance of MEA would be determined by the design and operation of the EPS. By using a virtual impedance that includes both a resistive term and an inductive term, autonomous power sharing is realized. Because of the frequency dependence in the virtual impedance, different power sharing ratios between steady state and transient state can be considered. Not only the operation of various power sources is coordinated without supervision of a centralized controller, but also the operation profile of each source can be adjusted to meet output characteristics of each source. To demonstrate the effectiveness of the proposed approach, a series of simulations that consider various virtual impedance configurations were conducted. The proposed approach contributes to a higher level of operational flexibility, while enabling reliable and cost-effective management of MEAs.

Electric Power Systems in More and All Electric Aircraft: A Review

“…In the paper, a two-stage management strategy was proposed; the total power that is needed to be absorbed/generated is calculated in the first stage, and the power to be stored and to be dissipated are determined in the second stage (by a fuzzy logic approach as a multi objective approach). Decentralized EMS were taken into consideration in [78] and [79]. In [78], a virtual impedance consisted of a resistor and an inductor was utilized to adjust the power sharing ratio both in the transient and steady state.…”

“…Decentralized EMS were taken into consideration in [78] and [79]. In [78], a virtual impedance consisted of a resistor and an inductor was utilized to adjust the power sharing ratio both in the transient and steady state. In [79], an EMS was proposed for APU comprised of fuel cells and supercapacitors.…”

Robust Centralized Control for DC Islanded Microgrid Considering Communication Network Delay

“…whereφ ij and other terms are as given in LMI (8). Similarly, LMI (9) can be obtained by multiplying R S 12 * R ≥ 0 by diag P 2P2 .…”

Minimization of Network Induced Jitter Impact on FPGA-Based Control Systems for Power Electronics through Forward Error Correction

“…The pervasive electrification of the transportation sector is also driving up power electronics complexity, for both cars [3] with the introduction of hybrid and electric vehicles, and aircraft [4]. In fact, the More Electric Aircraft (MEA) [5] framework aims to replace the mechanical, hydraulic, and pneumatic systems with electromechanical ones. This will lead to an increase in overall efficiency through the use of a more effective, bleedless turbofan main engine, and to weight reduction due to the elimination of ducting, valving, and other power transmission components.…”