Island Power Transmission With Flexible Loads for Full Line Utilization
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Solution Overview
Problem
Existing electrical transmission systems are limited by grid regulations and requirements, which increase costs and reduce capacity, especially when serving sensitive loads that do not require strict voltage, frequency, and phase control.
Innovation Solution
A power conversion system that operates as an island system, utilizing fully utilized transmission lines and flexible loads to transmit AC power at varying frequencies and voltages, eliminating the need for grid code regulations, and incorporating a buffer for energy storage and hydrogen production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If grid code regulated systems are used to ensure voltage, frequency, and phase control, then reliability is improved, but transmission capacity is reduced
Solution Approach 1:
The patent extracts the island from the main grid, creating an independent microgrid that operates autonomously. By separating the island system from grid code regulations, the transmission lines can operate at higher capacities without being constrained by voltage, frequency, and phase control requirements that apply to interconnected grid systems.
Solution Approach 2:
The patent changes the operational parameters of the transmission lines by operating them in an unregulated mode within the island system. This allows transmission lines to carry higher power loads that would otherwise be restricted by grid code limits on voltage, frequency, and phase deviations.
2Productivity
If transmission lines are operated at maximum physical capacity, then productivity is improved, but reliability deteriorates due to lack of redundancy
Solution Approach 1:
The patent implements energy storage systems and hydrogen production facilities in advance within the island system. These preliminary actions allow the system to store excess energy when transmission capacity is high and retrieve it when needed, providing reliability buffers that enable transmission lines to operate at maximum capacity without compromising system stability.
3Reliability
If grid code regulations are implemented, then reliability is improved, but operational costs increase
Solution Approach 1:
The patent extracts the island system from the regulated grid environment, eliminating the need to comply with grid code regulations. This extraction removes the associated operational costs of voltage control, frequency regulation, and phase synchronization that would otherwise be required to maintain reliability in an interconnected grid system.
4Reliability
If transmission lines are underutilized due to regulations, then reliability is maintained, but loss of energy increases
Solution Approach 1:
The patent implements continuous useful action by operating transmission lines at or near maximum capacity continuously within the island system. The energy storage systems and flexible loads ensure that transmission capacity is continuously utilized, converting what would be wasted capacity into useful energy storage and production activities.
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
Enhances transmission capacity to 75-100% of the maximum physical rate, reduces operational costs, and optimizes energy utilization for flexible loads.
Implementation Method 1
an electrical generator operable to generate an electrical power
Implementation Method 2
an inverter operable to receive the electrical power from the electrical generator and operable to output the electrical power with a desired frequency and at a desired voltage
Implementation Method 3
A flexible load is operable in response to the receipt of the electrical power from the electrical transmission system to convert a portion of the electrical power into a form of stored energy
Data Source
AI summary
A power conversion system includes an electrical generator operable to generate an electrical power and an electrical transmission system that is operable to transmit the electrical power from the electrical generator, the electrical transmission system having a maximum physical power transmission rate. A flexible load is operable in response to the receipt of the electrical power from the electrical transmission system to convert a portion of the electrical power into a form of stored energy. The electrical transmission system is separate from any grid code regulated systems, and the electrical transmission system is configured to transmit electrical power from the electrical generator to the flexible load at a rate that is 75 percent to 100 percent of the maximum physical power transmission rate.