Fuel-Control System for Telecommunications Power Continuity
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Solution Overview
Problem
Conventional power systems for telecommunications facilities face challenges in maintaining continuous electrical power due to blackouts and fuel supply disruptions, where diesel generators and batteries have limitations in reliability and duration, and gas turbines require steady fuel pressure to operate effectively.
Innovation Solution
A fuel-control system that utilizes a gas turbine generator as the primary power source, backed up by lithium metal polymer batteries and a low-power fuel cell, with pressure-controlled valves and a programmable logic controller to manage transitions between utility and stored natural gas sources, ensuring continuous power to a base transceiver station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a diesel generator is used to back up commercial AC power, then power continuity is improved during blackouts, but the system complexity and response time are worsened due to the need for battery bridging and generator startup delays
Solution Approach 1:
The patent extracts the fuel storage and pressure regulation components from the gas turbine system, creating a self-contained fuel management subsystem. This allows the turbine to operate independently without external fuel infrastructure, reducing overall system complexity while maintaining reliability.
Solution Approach 2:
The patent implements preliminary action by pre-storing fuel in onboard tanks and pre-regulating pressure through control systems. This ensures the gas turbine can immediately start and operate without waiting for external fuel delivery, eliminating the battery bridging and startup delays associated with diesel generators.
2Reliability
If a gas turbine is used to generate electrical power, then power reliability is improved, but the operation stability is worsened due to erratic fuel pressure delivery
Solution Approach 1:
The patent employs feedback control through pressure sensors and control systems that continuously monitor fuel pressure and adjust delivery accordingly. This closed-loop system maintains steady fuel pressure to the turbine, ensuring stable electrical production while preserving the reliability benefits of turbine operation.
3Stability of the object's composition
If pressure-controlled valves are used to deliver natural gas to a gas turbine, then the fuel pressure stability is improved, but the device complexity is worsened due to additional control components
Solution Approach 1:
The patent merges the pressure control function with the existing fuel delivery system by integrating pressure-controlled valves and control logic into the onboard fuel management subsystem. This consolidation achieves stable fuel pressure without adding significant external complexity, as the control components work together as a unified system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides seamless transition between power sources, maintaining uninterrupted power to telecommunications equipment, extending battery life, and ensuring the controller remains functional to monitor and manage the power system even during fuel shortages.
Implementation Method 1
a low-power fuel cell which is used to back up the PLC only... noncombustibly consuming a second fuel
Implementation Method 2
backed up by lithium metal polymer batteries
Data Source
AI summary
Various embodiments of a fuel-control system for regulating the administration of a first fuel to a fuel consuming device are disclosed. In one aspect, the fuel-control system includes a system-controlling device adapted to consume a primary source of electrical power. The system controlling device is also adapted to consume a secondary source of electrical power, with the secondary source produced by noncombustibly consuming a second fuel.