Hydrogen Production Power Supply Two-Stage Conversion
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Solution Overview
Problem
Conventional hydrogen production power supply systems using electrolyzed water face issues with non-uniform load distribution among electrolyzers, leading to gas production losses due to differences in factory parameters and maintenance cycles, resulting in inefficiencies and emissions.
Innovation Solution
A hydrogen production power supply system with a two-stage conversion module structure, where each hydrogen production device receives independent power supply through parallel-connected DC/DC converters, eliminating the need for customized power frequency converters and adapting voltage without significant path loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single AC/DC converter supplies power to multiple electrolyzers, then device complexity is reduced, but load distribution becomes non-uniform causing gas production loss
Solution Approach 1:
The power supply system is segmented into multiple independent AC/DC converter modules, where each converter is dedicated to supplying power to a specific electrolyzer. This segmentation allows each converter to independently control its connected electrolyzer, ensuring uniform load distribution and eliminating the 'Buckets effect' that causes gas production loss, while maintaining manageable system complexity through modular design
2Ease of operation
If electrolyzers operate with non-uniform load, then system operation is simplified, but gas production efficiency decreases
Solution Approach 1:
Each AC/DC converter module is equipped with independent control capabilities that allow dynamic adjustment of operating parameters based on the specific conditions of its connected electrolyzer. This dynamic control ensures that each electrolyzer operates at optimal load levels, maintaining high gas production efficiency while the overall system remains easy to operate through standardized modular interfaces
3Productivity
If customized power frequency converters are used for each electrolyzer, then load uniformity is improved, but device complexity and cost increase
Solution Approach 1:
The system employs standardized AC/DC converter modules that can be universally applied to multiple electrolyzers. Each module is designed with multi-functionality to handle various operating conditions and can be configured through standardized interfaces, achieving uniform load distribution without requiring customized converters for each electrolyzer, thus avoiding increased complexity and cost
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 independent power supply to each hydrogen production device, reducing gas production losses and adapting voltage effectively, thus enhancing efficiency and aligning with zero-carbon emission targets.
Implementation Method 1
each output end of the second stage conversion module is connected to a power supply end of each hydrogen production device, respectively... adapting voltage without significant path loss
Data Source
AI summary
A hydrogen production power supply system is provided by the present disclosure, wherein two stage conversion modules are arranged between the power supplies, and each output end of the second stage conversion module is connected to a power supply end of each hydrogen production device, respectively, so that independent power supply is provided for each hydrogen production device, which eliminates the loss of gas production caused by the non-uniform load among the hydrogen production devices. In addition, being different from the conventional technology, it is unnecessary for the hydrogen production power supply system to adapt the voltage by using a customized power frequency converter in the present disclosure. Therefore, the path loss issue can be avoided.