Compact dynamic phase angle regulators
First Claim
1. A system for controlling active and reactive power flows between a first AC source and a second AC source, comprising:
- a transformer comprising a first set of windings and a second set of windings, each of the first set of windings coupled to a line-line voltage, and the center point of each of the second set of windings coupled to a line-neutral voltage; and
a set of AC/AC converter coupled to the second set of windings, each of the set of AC/AC converters inserting a voltage to the corresponding line-neutral voltage.
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Accused Products
Abstract
Compact dynamic Phase Angle Regulators (CD-PARs) are provided. A Compact Dynamic Phase Angle Regulator (CD-PAR) is a stand-alone device that regulates phase angle through a single transformer. A CD-PAR has no external energy source, uses low-rating devices, and can be isolated from a fault in the grid. A CD-PAR may be implemented in a single-phase or in a three-phase configuration, but the operation of a CD-PAR cross-couples all three phases. A CD-PAR controls both the real and the reactive power flow between two AC sources having the same frequency by inserting a voltage with controllable magnitude and phase. A CD-PAR may be implemented in either a buck configuration or a boost configuration.
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Citations
15 Claims
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1. A system for controlling active and reactive power flows between a first AC source and a second AC source, comprising:
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a transformer comprising a first set of windings and a second set of windings, each of the first set of windings coupled to a line-line voltage, and the center point of each of the second set of windings coupled to a line-neutral voltage; and a set of AC/AC converter coupled to the second set of windings, each of the set of AC/AC converters inserting a voltage to the corresponding line-neutral voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification