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US 12,424,378 B2Granted
AC drive coupled to zigzag transformer power processing apparatus and method of use thereof
OwnerGrant A. MacLennan, Hans Wennerstrominventors
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Abstract
The invention comprises a method and apparatus for processing power, comprising the steps of: generating/using 3-phase power; feeding an AC drive with the 3-phase power, the AC drive generating a first output; and transforming the first output with a zigzag transformer, the zigzag transformer linked to at least one load output/load connector. The method and apparatus comprises an optional filter for filtering the 3-phase power prior to the step of transforming, the filter including a distributed gap core material.
Claims18
A method for processing power, comprising the steps of:
- providing a 3-phase power;
- feeding an AC drive with the 3-phase power, said AC drive generating a first output;
- transforming the first output with a zigzag transformer, said zigzag transformer linked to at least one load output connector, said step of transforming further comprising the steps of:
- generating 208 V output from a first phase and a second phase of the 3-phase power;
- and
- generating 480 V output from a first phase and a third phase of the 3-phase power.
3 more elements
A method for processing power, comprising the steps of:
- providing a 3-phase power;
- feeding an AC drive with the 3-phase power, said AC drive generating a first output;
- and
- transforming the first output with a zigzag transformer, said zigzag transformer linked to at least one load output connector, said step of transforming further comprising the steps of:
- generating 240 V output from combined outputs of:
- (1) a first transformer, of said zigzag transformer processing a first phase of the 3-phase power and (2) a second transformer, of said zigzag transformer, processing a second phase of said 3-phase power;
- and
- generating 480 V output from combined outputs of:
- (1) a first transformer, of said zigzag transformer processing a first phase of the 3-phase power and (2) a third transformer, of said zigzag transformer, processing a third phase of said 3-phase power.
6 more elements
A method for processing power, comprising the steps of:
- providing a 3-phase power:
- feeding an AC drive with the 3-phase power, said AC drive generating a first output;
- and
- transforming the first output with a zigzag transformer, said zigzag transformer linked to at least one load output connector, said step of generating further comprising the step of:
- storing a fraction of a second output from said zigzag transformer in a battery.
2 more elements
A method for processing power, comprising the steps of:
- providing a 3-phase power;
- feeding an AC drive with the 3-phase power, said AC drive generating a first output;
- transforming the first output with a zigzag transformer, said zigzag transformer linked to at least one load output connector;
- and
- isolating magnetic phases of said second output of said AC drive prior to said step of transforming with said zigzag transformer.
2 more elements
A method for processing power, comprising the steps of:
- providing a 3-phase power;
- feeding an AC drive with the 3-phase power, said AC drive generating a first output:
- transforming the first output with a zigzag transformer, said zigzag transformer linked to at least one load output connector;
- and
- generating the 3-phase power with a hybrid generator positioned on a mobile platform comprising at least one of:
- a trailer;
- and
- a ship.
5 more elements
An apparatus, comprising:
- a generator configured to generate a 3-phase power;
- an AC drive configured to use a first output of said generator, said AC drive configured to generate a second output;
- and
- a zigzag transformer, linked to at least one load output connector, configured to transform the second output and at least partially balance an individual load between individual phases of the 3-phase power, said zigzag transformer further comprising:
- a first transformer electrically linked to a first phase of the 3-phase power:
- a second transformer electrically linked to a second phase of the 3-phase power;
- a third transformer electrically linked to a third phase of the 3-phase power;
- and
- at least four secondary windings in each of said first transformer, said second transformer, and said third transformer.
6 more elements
An apparatus, comprising:
- a generator configured to generate a 3-phase power:
- an AC drive configured to use a first output of said generator, said AC drive configured to generate a second output:
- a zigzag transformer, linked to at least one load output connector, configured to transform the second output and at least partially balance an individual load between individual phases of the 3-phase power;
- and
- a sine wave filter configured to filter the second output from said generator prior to input to said zigzag transformer.
2 more elements
Dependencies are inferred from the claim text.