System for generating electricity for an aircraft

By employing a multiphase permanent magnet generator concentrically mounted with a gas turbine in the aircraft turbine power generation system, combined with a starter/generator and management unit, voltage conversion and fault tolerance are achieved, solving the problem of insufficient adaptability and robustness of turbine generators in existing technologies, and improving system efficiency and power density.

CN122407360APending Publication Date: 2026-07-17SAFRAN SA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SAFRAN SA
Filing Date
2019-07-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing turbine generator technology is difficult to adapt to different propulsion functions and operating modes of aircraft, and the voltage output directly depends on the rotational speed and power, resulting in insufficient system robustness.

Method used

It adopts a multiphase permanent magnet generator and a gas turbine installed concentrically, combined with a starter/generator and management unit, and realizes voltage conversion and fault tolerance through a bidirectional converter. Monitoring elements detect winding faults, and an integrated battery or supercapacitor power supply unit is used.

Benefits of technology

It improves the efficiency and power density of the power generation system, ensures stable system operation in the event of a fault, reduces surge margin, and optimizes turbine size.

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Abstract

用于飞行器的发电系统(10),包括:具有高压轴并输出气流以致动自由式涡轮机(22)的燃气涡轮机(14),多相永磁发电机(PMG 12),该多相永磁发电机耦合到燃气涡轮机并且能够输出用于通过第一转换装置向飞行器的初级供电网(30)供电的第一交流电压,该自由式涡轮机和永磁发电机与燃气涡轮机的高压轴同心地安装在同一驱动轴(24)上,安装在高压轴上能够确保燃气涡轮机的起动的起动器,该起动器是能够输出用于向飞行器的次级供电网和燃气涡轮机的辅助装备(37)供电的第二交流电压的永磁起动器 / 发电机(PMS / G 28),并且第一转换装置包括由管理单元(34)控制的两个第一AC / DC转换器(32A、32B)。
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