【Ten Years of Great Progress in Chemical Engineering Technology】044-2023 Management Module for Large-Scale Hydrogen Production from Renewable Energy
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On April 25, CIMC Power Solutions held an inauguration ceremony for the \"Advanced Green Hydrogen Equipment and Core Materials Testing Center\" at its green hydrogen equipment production base in Yangzhou, Jiangsu. At the same time, it introduced three innovative products: the SS WAC off-grid electrolyzer post-treatment control module, the HMS 1.0 thermal energy management module, and the EC on-line electrolyzer safety management module – all of which are suitable for large-scale hydrogen production from renewable energy sources. Lv Guoai, Executive Vice President of CIMC Power Collection and General Manager of Yangzhou CIMC Power, explained in detail to the guests the innovative features of this new product and conducted a live demonstration. Traditional electrolytic water hydrogen production systems generally operate under conditions such as a stable power supply, low hydrogen production volume, and single cells, requiring minimal demands on the post-treatment system. Within the context of the **hydrogen energy strategy, the main area for producing hydrogen through water electrolysis is its integration with renewable energy sources such as wind and solar power, in order to enable large-scale production. How to achieve rapid response to renewable energy sources, how to improve the overall efficiency of water electrolysis hydrogen production systems through scientific heat management, and how to effectively ensure the operational safety of large-scale green hydrogen plants and offshore electrolyzers are among the most pressing issues in the water electrolysis hydrogen production industry. To address the pain points in the industry, CIMC Power Supply offers leading solutions.
01 SS WAC Off-grid electrolyzer post-treatment control module: “SS WAC” is an abbreviation for “Start & Stop Wide-range control”, meaning “instant start/stop and wide-range adjustment”. The hydrogen production post-treatment unit equipped with this system achieves a cold start time of less than 5 minutes and a hot start time of 1 second, thanks to 6 major technological innovations ranging from process improvements to dynamic algorithms; tests conducted at the ceremony showed a hot start time of just 0.4 seconds. Meanwhile, the hydrogen production system is capable of responding within seconds to the instantaneous fluctuations in renewable energy sources, ensuring stable operation of the system.
The SS WAC off-grid electrolyzer post-treatment control module is a control system capable of rapid start-up and shutdown as well as wide-range adjustment, and can be used for post-treatment control in large-scale renewable energy hydrogen production scenarios. Through 6 technological innovations, ranging from process improvements to advanced algorithms, this system has been upgraded, enabling a cold start time of less than 5 minutes and a hot start time of just 1 second (even 0.4 seconds in field tests). Meanwhile, the hydrogen production system can respond quickly to sudden fluctuations in renewable energy sources, ensuring stable operation of the system. The introduction of these innovative devices will accelerate the integration of renewable energy and hydrogen production technologies, making a significant contribution to the development of green hydrogen. .
02 In the HMS 1.0 thermal energy management module, 26% of the electrical energy is lost during the electrolysis-based hydrogen production process; in addition, 2% more electrical energy is required to control the temperature. The thermal energy integrated management module recovers and reuses this heat energy. In addition to being used for the preheating of gases in processes such as degassing and drying, this heat can also be converted into hot water at 60°C or even 100°C. It can be utilized for supplying hot water in workshops and office areas, as well as for heating the entire facility. The recovery rate of thermal energy by this module exceeds 90%.
The 03 EC on-line electrolyzer safety management module automatically collects data through an online monitoring module and dynamic algorithms, enabling real-time monitoring of the voltage in each electrolysis cell to detect any abnormalities promptly. It can also analyze historical voltage data to identify trends and issue warnings, thereby ensuring the safe and stable operation of the entire system.