Magnetic Power Control for Grid Frequency and Load Balancing
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Solution Overview
Problem
The integration of non-dispatchable renewable energy sources like wind and solar photovoltaic into the electric power grid poses challenges for load balancing and frequency stability due to timing imbalances, leading to energy losses and potential system failures.
Innovation Solution
A power control apparatus utilizing a magnetic core with primary and secondary windings, voltage source converters, and a controller to modulate electrical power signals through near-field induction and high-speed dispatch, enabling harmonisation and energy storage to stabilise frequency and balance load in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If non-dispatchable renewable energy sources are integrated into the power grid, then energy production capacity is improved, but frequency stability and load balancing deteriorate
Solution Approach 1:
The patent introduces a power control apparatus as an intermediary device between the renewable energy sources and the power grid. This apparatus includes a magnetic core with primary and secondary windings, voltage source converters, and controllers that actively modulate power signals to harmonize the output from non-dispatchable sources with grid requirements, thereby maintaining frequency stability while preserving energy production capacity
Solution Approach 2:
The patent employs real-time parameter modulation of electrical power signals including voltage, current, frequency, and phase angle. The controller adjusts these parameters dynamically to compensate for the variability of renewable energy sources, transforming their output characteristics to match grid specifications and maintain frequency stability
2Productivity
If the output of non-dispatchable renewable energy sources is increased, then energy production is improved, but timing imbalance between peak demand and energy production worsens
Solution Approach 1:
The patent implements predictive control mechanisms that anticipate peak demand periods and pre-adjust the power output from renewable energy sources. The controller receives demand signals and proactively modulates the power signal parameters before peak demand occurs, reducing the timing imbalance between energy production and consumption
Solution Approach 2:
The patent employs periodic modulation of power signals to align energy production with cyclical demand patterns. The voltage source converters and controllers apply periodic adjustments to the power output, synchronizing renewable energy generation with the rhythmic nature of electrical demand throughout the day
3Reliability
If conventional load balancing techniques are used, then frequency stability is improved, but device complexity and energy loss worsen
Solution Approach 1:
The patent replaces conventional mechanical load balancing methods (such as adjusting dispatchable generation or pumped-storage systems) with electronic power signal modulation. The power control apparatus uses electronic controllers and voltage source converters to directly modulate power signals, eliminating the need for complex mechanical adjustment systems while maintaining frequency stability
Solution Approach 2:
The patent enables the power control apparatus to automatically adjust and harmonize power signals without requiring external intervention or complex centralized control. The device monitors grid conditions and autonomously modulates power parameters to maintain frequency stability, reducing the need for additional control infrastructure
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 apparatus optimises energy flow and load balancing by reducing harmonics, stabilising frequency, and enabling temporal balance of demand and supply, even with non-linear loads, through efficient energy storage and modulation.
Implementation Method 1
A primary winding is arranged around the first limb, and a first secondary winding may be arranged around the first limb. A second secondary winding is arranged around the second limb, and a third secondary winding is arranged around the third limb.
Implementation Method 2
The power control apparatus comprises a voltage source converter having an AC connection and a DC connection, and a controller. The controller is configured to receive data associated with parameters of a first signal in the primary winding, compare the parameters of the first signal to parameters of a respective reference signal
Implementation Method 3
The power control apparatus comprises a magnetic core comprising a first limb, a second limb, and a third limb. Each limb is arranged around a central axis
Data Source
AI summary
Power control apparatus for modulating electrical power signals and methods for modulating electrical power signals are disclosed. In one example, a power control apparatus comprises a magnetic core comprising a first limb and a second limb, with a primary winding around the first limb, and a secondary winding around the second limb. The power control apparatus comprises a voltage source converter having an AC connection, a DC connection, and a controller. The controller is configured to receive data associated with parameters of a first signal in the primary winding, compare the parameters of the first signal to parameters of a reference signal for the secondary winding, determine a harmonization signal which, when applied to the first limb, causes a second signal in the secondary winding to approximate the reference signal. The controller is configured to cause application of the harmonization signal to the first limb using the voltage source converter.