초록 ▼

Electrical machine cycloconverter devices are provided that produce output signals in which the frequency, amplitude and phase are independent of rotor speed. The cycloconverters produce highly efficient increased output by providing multi-tap armatures that include multiple armature coils arranged

Electrical machine cycloconverter devices are provided that produce output signals in which the frequency, amplitude and phase are independent of rotor speed. The cycloconverters produce highly efficient increased output by providing multi-tap armatures that include multiple armature coils arranged such that at least two coils may be connected in series to an electrical load. Such configurations produce output signals that include multiple distinct voltage amplitude steps. In preferred embodiments, either rotating permanent magnets or field coils in conjunction with rotating steel teeth induce a voltage in the armature coils. The level of induced voltage is determined by the switching sequence of one or more armature coils that are switched ON and OFF in series, parallel, or series and parallel by semiconductor switches. The cycloconverters may be combined with additional components, such as a reciprocating engine and a connection to utility power, to provide a continuous power system, or they may be coupled to an external source of AC power instead of an electrical load and operated as a motor.

대표청구항 ▼

[ What is claimed is:] [1.] An electrical machine cycloconverter (101) comprising:a rotor (104) that may be rotated about a shaft (106), said rotor (104) comprising a high permeability material;a multi-tap armature having a plurality of armature coils (126), at least two of which can be operated in

[ What is claimed is:] [1.] An electrical machine cycloconverter (101) comprising:a rotor (104) that may be rotated about a shaft (106), said rotor (104) comprising a high permeability material;a multi-tap armature having a plurality of armature coils (126), at least two of which can be operated in series;a member (120) that generates magnetic flux that induces a high frequency AC voltage in said armature coils (126) when said rotor (104) is rotated about said shaft (106); andswitching circuitry (130) that controls the number of said armature coils (126) connected in series through an electrical load to produce a low frequency AC output signal that includes a plurality of distinct voltage amplitude steps.