Simulation method of civil aircraft multi-electrical system loads

Abstract

The present invention mainly belongs to the field of civil aircraft electromechanical systems, and specifically relates to a simulation method of civil aircraft multi-electrical system loads. The simulation method comprises the following steps of (1) dividing the multi-electrical system loads into three types: the first type linear loads, the second type motor type non-linear loads and the third type power electronics type non-linear loads, and establishing simulation circuits for each type of loads; (2) establishing simulation models of electrical systems according to different load types, and providing true and accurate load characteristics for electrical system power supply quality simulation; and (3) establishing a general load power platform, and achieving dynamic simulation of the non-linear loads through high-power power electronics modules and control technologies. Digital implementation is completed by the simulation method, and the simulation method can be used in an aircraft electrical system concept design phase, a preliminary design phase and a detailed design phase, and can also be used in model copper bird benches.

Description

technical field [0001] The invention mainly belongs to the field of electromechanical systems of civil aircraft, and in particular relates to a method for simulating loads of multi-electric systems of civil aircraft. Background technique [0002] The aircraft power system is the general term for the system and electrical equipment in the store. It is one of the important components of the aircraft. Its normal work plays a vital role in the safety and normal flight of the aircraft. , All-electric development, its safety has received more and more attention. [0003] The aircraft power system consists of a power supply system and electrical equipment. Its function is to provide electrical energy to all electrical equipment on the aircraft (such as the flight system, avionics system, fire control system, etc.) to ensure the safe flight of the aircraft and complete transportation. and other tasks. With the rapid development of large aircraft in the direction of more electricit...

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Problems solved by technology

In the development process of the aircraft, the ground verification of the airborne system is mainly through the construction of the copper bird platform, and simulates the electrical load of the aircraft, so as to verify the characteristics of the entire electrical system. The simulation load is mainly used, and it cannot accurately simulate more and more complex rectified nonlinear loads added to multi-electric aircraft

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