초록 ▼

An electrical system for a turbine/alternator comprising a gas driven turbine and permanent magnet alternator rotor rotating on a common shaft and comprising an inverter circuit connected either to an AC output circuit or the stator windings of the alternator. A control circuit during start-up mode

An electrical system for a turbine/alternator comprising a gas driven turbine and permanent magnet alternator rotor rotating on a common shaft and comprising an inverter circuit connected either to an AC output circuit or the stator windings of the alternator. A control circuit during start-up mode connects the inverter circuit to the stator windings of the alternator and during the power generation mode it switches and connects the inverter circuit to the AC output circuit. Thus, during the start-up mode, the alternator functions as a motor to raise the speed of the turbine to a safe ignition speed and in the power generation mode the system provides power through the AC output circuit, electrical power having a frequency and voltage unrelated to the rotational speed of the turbine/alternator.

대표청구항 ▼

[ What is claimed is:] [1.]1. A high speed turbine/alternator system for generation of electric power, comprising:a gas driven turbine system;an alternator having a permanent magnet rotor and a stator;a shaft which is coupled in common to said turbine system and said rotor;an m-pole permanent magnet

[ What is claimed is:] [1.]1. A high speed turbine/alternator system for generation of electric power, comprising:a gas driven turbine system;an alternator having a permanent magnet rotor and a stator;a shaft which is coupled in common to said turbine system and said rotor;an m-pole permanent magnet system carried by said rotor;an annular retention system arranged over said rotor to oppose centripetal force and retain said magnet system in place;a high permeability core included in said stator;a slot system defined by said core;an n-phase distributed winding carried in said slot system; andan electrical system;wherein electromagnetic interaction that generates n-phase AC signals in response to rotation of said rotor by said turbine system is limited to said m-pole permanent magnet system and said n-phase distributed winding;and wherein said electrical system is configured to facilitate rotation of said rotor in a start-up operational mode of said turbine/alternator system and to extract said electric power from said n-phase AC signals during a power generation operational mode of said turbine/alternator system.