Power generation apparatus using permanent-magnet generator
AssigneeHitachi, Ltd.
InventorsHironari Kawazoe, Motoo Futami, Akira Kikuchi
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Abstract
A power generation apparatus includes a permanent-magnet AC generator, a first converter for converting AC power into DC power, and a second converter for converting the DC power produced by the first converter into AC power. The first converter includes a unit for controlling active power and a unit for controlling reactive power and the second converter includes a unit for controlling a voltage of a DC system and reactive power or AC voltage of a power system.
Claims6
A power generation apparatus including a permanent-magnet generator for generating AC power, a first converter for converting the AC power generated by said generator into DC power, and a second converter for converting the DC power produced by said first converter into AC power, wherein:
- said first converter includes self-commutating semiconductor elements, means for controlling an active power component of the AC power of said generator and means for controlling a reactive power component of the AC power of said generator;
- and
- said second converter includes self-commutating semiconductor elements and means for producing a first active power.
A power generation apparatus including a permanent-magnet generator for generating AC power, a first converter for converting the AC power generated by said generator into DC power, and a second converter for converting the DC power produced by said first converter into AC power, wherein:
- said first converter includes self-commutating semiconductor elements, means for controlling an active power component of the AC power of said generator, means for controlling a voltage of the AC power of said generator, and means for calculating a voltage command value on the basis of an active power command value and a rotation speed of said generator;
- and
- said first converter controls a terminal voltage of said generator on the basis of the active power command value and the rotation speed of said generator.
A power generation apparatus including a permanent-magnet generator for generating AC power, a first converter for converting the AC power generated by said generator into DC power, and a second converter for converting the DC power produced by said first converter into AC power, wherein:
- said first converter includes self-commutating semiconductor elements, means for controlling an active power component of the AC power of said generator, means for controlling a voltage of the AC power of said generator, and means for calculating a voltage command value on the basis of an active power command value or a rotation speed of said generator;
- and
- said first converter controls a terminal voltage of said generator on the basis of the active power command value or the rotation speed of said generator.
Dependencies are inferred from the claim text.