Modular cell site with air-turbine backup
First Claim
1. A modular system that provides backup electrical power to telecommunications equipment via a pressurized air driven turbine operating in cooperation with a generator that are initiated by a control system, wherein the electrical power is presented at a voltage level appropriate for the telecommunications equipment, said system comprising:
- a first conversion device for converting alternating current (AC) from an AC utility into a primary source of direct current (DC) fed into a DC bus;
the turbine operable to utilize the pressurized air to create mechanical energy;
the generator for converting the mechanical energy created by the turbine to AC;
a second conversion device for converting AC from the generator into DC that is introduced to the DC bus when a power drop exists in the utility AC;
an energy-storage device for automatically introducing DC to the DC bus as a bridge during a switch between the AC utility to the turbine;
the DC bus that is electrically linked to the first conversion device, the second conversion device, and the energy-storage device in parallel, and conveys DC to the BTS equipment; and
a housing in which the first conversion device, the energy-storage device, the turbine and the generator are located, wherein the housing encloses the BTS equipment within an internal cabinet, and where the BTS equipment supports communication from a communications tower.
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Accused Products
Abstract
The present invention is a DC power system incorporated into a modular housing. The primary source of power is an electrical utility. Because the electrical utility provides alternating current, the module includes a rectifier which makes the conversion to DC. The module also includes an air turbine which is used as a backup source of power. Also included is an array of lithium-metal-polymer (LMP) batteries to bridge and also for backup power if necessary.
70 Citations
12 Claims
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1. A modular system that provides backup electrical power to telecommunications equipment via a pressurized air driven turbine operating in cooperation with a generator that are initiated by a control system, wherein the electrical power is presented at a voltage level appropriate for the telecommunications equipment, said system comprising:
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a first conversion device for converting alternating current (AC) from an AC utility into a primary source of direct current (DC) fed into a DC bus; the turbine operable to utilize the pressurized air to create mechanical energy; the generator for converting the mechanical energy created by the turbine to AC; a second conversion device for converting AC from the generator into DC that is introduced to the DC bus when a power drop exists in the utility AC; an energy-storage device for automatically introducing DC to the DC bus as a bridge during a switch between the AC utility to the turbine; the DC bus that is electrically linked to the first conversion device, the second conversion device, and the energy-storage device in parallel, and conveys DC to the BTS equipment; and a housing in which the first conversion device, the energy-storage device, the turbine and the generator are located, wherein the housing encloses the BTS equipment within an internal cabinet, and where the BTS equipment supports communication from a communications tower. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification