Browse Publications Technical Papers 1999-01-2545
1999-08-02

On the Concept of Negative Impedance Instability in the More Electric Aircraft Power Systems with Constant Power Loads 1999-01-2545

The purpose of this paper is to present an assessment of the negative impedance instability concept of the constant power loads in the More Electric Aircraft (MEA) power systems. We address the fundamental problems faced in the stability studies of these multi-converter power electronic systems. An approach to the design of sliding-mode controllers for PWM DC/DC converters with constant power loads is presented. Because of the negative impedance destabilizing characteristics of constant power loads, conventional linear control methods have stability limitations around the operating points. However, the proposed controllers improve large-signal stability and dynamic responses. The proposed controllers are simulated and their responses under different operations are discussed. Finally, we verify the stability of the controllers using the second theorem of Lyapunov.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Data Communication Protocols on Aircrafts On-Board Electronics: A Study of their Application around the World

2004-01-3315

View Details

STANDARD

AIRCRAFT DATA NETWORK PART 7 AVIONICS FULL-DUPLEX SWITCHED ETHERNET NETWORK

ARINC664P7-1

View Details

TECHNICAL PAPER

Utilization Life of Electronic Systems - Aging Avionics Usable Life and Wear-Out Issues

2002-01-3013

View Details

X