초록 ▼

A permanent magnet alternator including a flux diversion member resiliently and magnetically coupled to the permanent magnet rotor for rotation therewith, an auxiliary (control) permanent magnet rotor rigidly coupled to the flux diversion member for rotation therewith, an auxiliary stator disposed a

A permanent magnet alternator including a flux diversion member resiliently and magnetically coupled to the permanent magnet rotor for rotation therewith, an auxiliary (control) permanent magnet rotor rigidly coupled to the flux diversion member for rotation therewith, an auxiliary stator disposed about the auxiliary rotor, and control means for variably loading the auxiliary stator to adjust the rotary position of the flux diversion member relative to the main permanent magnet rotor. The flux diversion member comprises a plurality of magnetic flux conducting vanes which coact with the rotor magnets such that variation of its rotary position relative to the rotary position of the permanent magnet rotor varies the stator flux, and hence the alternator output voltage.

대표청구항 ▼

A voltage controlled permanent magnet alternator comprising: a rotor shaft rotatably supported in a stationary alternator housing: main machine means including a main permanent magnet rotor pole structure secured to the rotor shaft for rotation therewith, a main stator pole structure secured to said

A voltage controlled permanent magnet alternator comprising: a rotor shaft rotatably supported in a stationary alternator housing: main machine means including a main permanent magnet rotor pole structure secured to the rotor shaft for rotation therewith, a main stator pole structure secured to said housing radially displaced with respect to said main rotor pole structure, and a main output winding wound therein, said main rotor and stator pole structures being magnetically coupled such that an alternating output voltage in induced in said said main output winding during rotation of said rotor shaft; flux control means including a plurality of magnetic flux conducting vanes disposed in a radial cavity between said main rotor and stator pole structures; control machine means axially displaced from said main machine means including a control permanent magnet rotor pole structure supported for rotation with said flux control means, a control stator pole structure secured to said housing, and a control output winding wound therein such that rotation of the control permanent magnet pole structure with respect to the control stator pole structure induces a voltage in the control output winding; and load control means for effecting a variable passive loading of the output winding of said control machine to vary the angular displacement of the flux conducting vanes of said flux control means with respect to said rotor and stator pole structures of said main machine, thereby varying the magnetic coupling therebetween to control the magnitude of the voltage induced in said main output winding.