Uninterruptible power supply systems and methods supporting load balancing
First Claim
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1. A system, comprising:
- an AC input configured to be coupled to an AC power source;
an AC output comprising a plurality of phases;
a converter having an input coupled to the AC input and an output coupled to the AC output;
a bypass circuit configured to selectively couple and decouple the AC input and the AC output; and
a control circuit configured to cause the converter to compensate for an unbalanced loading of the phases of the AC output.
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Abstract
An uninterruptible power supply (UPS) system that includes a multiphase AC output configured to be coupled to a load, an inverter having an output coupled to the AC output and a control circuit operatively associated with the inverter and configured to cause the inverter to compensate for a phase imbalance of a load coupled to the AC output while power is being delivered to the load from an AC power source independently of the inverter.
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Citations
15 Claims
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1. A system, comprising:
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an AC input configured to be coupled to an AC power source; an AC output comprising a plurality of phases; a converter having an input coupled to the AC input and an output coupled to the AC output; a bypass circuit configured to selectively couple and decouple the AC input and the AC output; and a control circuit configured to cause the converter to compensate for an unbalanced loading of the phases of the AC output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system, comprising:
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a converter having an AC output comprising a plurality of phases and an input configured to be coupled to a variably available power source; and a control circuit configured to cause the converter to selectively transfer power to and from the variably available power source to compensate for an unbalanced loading of the phases of the AC output. - View Dependent Claims (12, 13, 14, 15)
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Specification