Coupled Coil Assembly for Electrolysis Choke Iron Reduction
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Solution Overview
Problem
Industrial-scale chemical electrolysis systems face challenges with harmonics and iron core requirements in direct current chokes, leading to significant size, weight, and cost issues due to the need for large iron cores to manage magnetic flux and harmonics in rectification processes.
Innovation Solution
A circuit assembly design where the first coil, acting as a direct current choke, is coupled with a second coil as a compensation coil through a shared magnetic coupling component, reducing the iron required in the first coil while maintaining inductance for smoothing and harmonic attenuation, using a yoke-like iron core and varying winding counts to adjust magnetic flux compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a direct current choke is used to smooth DC voltage and attenuate harmonics, then the smoothing function is achieved, but the amount of iron required increases significantly
Solution Approach 1:
The patent combines the direct current choke (first coil) and compensation coil (second coil) into a single integrated coil assembly sharing a common iron core, rather than using separate components. This merging allows the compensation coil to reduce magnetic flux in the shared core, enabling iron reduction while maintaining the choke's smoothing function.
Solution Approach 2:
The compensation coil acts as an intermediary element that generates a counteracting magnetic flux to reduce the overall magnetic flux in the iron core. This intermediary coil enables the system to achieve the same smoothing effect with less iron by mediating the magnetic field interactions.
2Reliability
If a balance choke is used between two direct current systems to correct circulating currents, then circulating current problem is solved, but the choke becomes very large requiring large iron core
Solution Approach 1:
The patent merges the balancing function with the existing direct current choke by integrating a compensation coil into the same iron core structure. This eliminates the need for a separate, large balance choke by combining multiple functions into one compact assembly.
Solution Approach 2:
The integrated coil assembly performs multiple functions simultaneously: it acts as a direct current choke for smoothing, a compensation mechanism for circulating currents, and a harmonic attenuator. This multi-functionality eliminates the need for separate dedicated components for each function.
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
This design significantly reduces the amount of iron needed in the first coil, maintaining effective smoothing and harmonic attenuation without increasing the size or weight of the choke, while allowing for adjustable compensation to manage high current magnitudes and phase offsets in industrial electrolysis applications.
Implementation Method 1
a magnetic flux generated by the second coil counteracts the magnetic flux generated by the first coil
Implementation Method 2
the first coil and the second coil are coupled to one another by means of a coupling component of the coil assembly that forms a core of each of the coils
Data Source
AI summary
A circuit assembly includes at least one coil assembly with a first coil and a second coil, the first coil being connected to a DC voltage side of a rectifier of the circuit assembly, and the second coil being connected to a power source of the circuit assembly, the first coil and the second coil being coupled to each other via a coupling component of the coil assembly, the coupling component forming a core of each of the coils.