Uninterruptible power supply systems and methods for communications systems
First Claim
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1. An uninterruptible power supply for supply electrical power to a load, comprising:
- a connection to a primary source for supplying primary power;
a battery system for storing battery power;
an inverter operatively connected to the battery system;
a transformer comprisinga first winding operatively connected to the primary source for supplying primary power,a second winding operatively connected to the load, anda third winding operatively connected to the inverter; and
a controller for controlling the inverter to operate ina first mode in which the inverter supplies power to the primary load and the battery system using primary power supplied by the primary source to the inverter through the transformer,a second mode in which the inverter supplies power to the primary load through the transformer using battery power stored in the battery system, anda third mode in which the inverter supplies power to the primary source through the transformer using battery power stored in the battery system.
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Abstract
An uninterruptible power supply for supply electrical power to a load, comprises a connection to a primary source for supplying primary power, a battery system for storing battery power, an inverter, and a controller. The controller controls the inverter to operate in a first mode, a second mode, and in a third mode. In the first mode, power is supplied to the primary load and the battery system based on primary power. In the second mode, power is supplied to the primary load based on battery power. In the third mode, power is supplied to the primary source based on battery power.
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Citations
20 Claims
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1. An uninterruptible power supply for supply electrical power to a load, comprising:
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a connection to a primary source for supplying primary power; a battery system for storing battery power; an inverter operatively connected to the battery system; a transformer comprising a first winding operatively connected to the primary source for supplying primary power, a second winding operatively connected to the load, and a third winding operatively connected to the inverter; and a controller for controlling the inverter to operate in a first mode in which the inverter supplies power to the primary load and the battery system using primary power supplied by the primary source to the inverter through the transformer, a second mode in which the inverter supplies power to the primary load through the transformer using battery power stored in the battery system, and a third mode in which the inverter supplies power to the primary source through the transformer using battery power stored in the battery system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 16, 17, 18, 19, 20)
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12. A method of supplying electrical power to a load, comprising the steps of:
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providing a battery system for storing battery power; operatively connecting an inverter to the battery system; providing a transformer comprising a first winding, a second winding, and a third winding; operatively connecting the first winding to a primary source for supplying primary power; operatively connecting the second winding to the load; operatively connecting the third winding to the inverter; and controlling the inverter to operate in a first mode in which the inverter supplies power to the primary load and the battery system using primary power obtained from the primary power source through the transformer, a second mode in which the inverter supplies power to the primary load through the transformer using battery power stored in the battery system, and a third mode in which the inverter supplies power to the primary source through the transformer using battery power stored in the battery system.
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15. An uninterruptible power supply for supply electrical power to a load, comprising:
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a connection to a primary source for supplying primary power; a battery system for storing battery power; an inverter operatively connected to the battery system; a transformer comprising a first winding operatively connected to the primary source for supplying primary power, a second winding operatively connected to the load, and a third winding operatively connected to the inverter; and a controller for controlling, based on at least one characteristic of the primary power, the inverter to operate in a first mode in which the inverter supplies power to the primary load and the battery system using primary power supplied by the primary source to the inverter through the transformer, a second mode in which the inverter supplies power to the primary load through the transformer using battery power stored in the battery system, and a third mode in which the inverter supplies power to the primary source through the transformer using battery power stored in the battery system.
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Specification