Electromagnetic Effects for Electrical Power Generation and Consumption Pair Systems

Abstract

Electrical power generation and consumption pair systems on aircraft play critical roles for fundamental aviation operation. The importance of electrical power generation and consumption pair has been increasing due to extensive use of fly-by-wire in modern aircraft. In order to maintain the safe and successful flight operations, we must ensure the electrical power generation and consumption pair meets the electromagnetic interference requirements set by regulatory agencies and industrial standards. We would like to demonstrate this electromagnetic effect design and analysis processes with modern aviation power system examples. For electromagnetic effects, we consider the radio frequency emissions and lightning effects which originate in power generation subsystems. Those electromagnetic effects affect the downstream electrical power consumption subsystems. We want to analyze the electromagnetic interference at the power generation subsystem and at the power consumption subsystem. From design and certification point of view, we need to assess the typical maximum strengths of the transient level of the emission and lightning, and analyze the downstream effects at the location of the affected power consumption subsystems. This process enables design, qualification and certification of the electrical power generation and consumption pair. We describe the power generation and consumption pair fundamentals. The details of evaluating the broadband emission noise are presented. We discuss the optimum solutions that help resolve these RF and lightning issues. We conclude with a summary and present future work suggestions.