#China #Beijing #BESS #Huawei Digital Power #Safety Rating

Huawei Digital Power's BESS Evaluation System

Recently, Huawei Digital Power, in collaboration with significant industry partners, successfully completed a rigorous technical assessment conducted by the China Electricity Council for its Battery Energy Storage System (BESS) safety evaluation framework. This framework has earned the highest evaluation rating in China, showcasing its position at the forefront of energy storage safety technology.

Overview of the Evaluation Process

The assessment committee comprised of notable experts, including Professor Ouyang Minggao from Tsinghua University and Rao Hong, the Chief Scientist at China Southern Power Grid, as well as twelve other specialists from various prestigious institutions. Together, they evaluated the innovative aspects and technical efficacy of Huawei's safety evaluation system.

This framework addresses critical technical gaps in battery energy storage systems (BESS) on both national and international levels. The committee members unanimously agreed on its excellence, praising its ability to create a comprehensive safety evaluation system for BESS throughout its entire lifecycle.

Key Features of the BESS Safety Evaluation System

The Huawei BESS safety evaluation system classifies safety risks into three levels: A (unacceptable), B (must mitigate), and C (acceptable). Level A represents extremely high risks that are uncontrollable, indicating a high likelihood of serious safety incidents. Level B identifies high risks that necessitate ongoing product design optimization and innovative technology integration. Finally, Level C denotes controllable risks where severe consequences can effectively be prevented, such as fire incidents.

Achievements in Safety Technology

The evaluation system is a product of detailed empirical research and advanced methodologies. It includes:

1. Active Safety Warning Technology - This highly accurate, intelligent system employs a hierarchical architecture with dual decoders and multiple frequencies, ensuring a minimum 95% reminder rate for operational anomalies.
2. Oxygen Blocking Architecture - The cutting-edge design of battery modules enhances resistance to high temperatures and pressure, has airtight capabilities, and prevents corrosion, ensuring that failures like thermal runaway do not lead to a catastrophic event.
3. Two-stage Energy Conversion Architecture - This innovative architecture prevents back-feeding to the grid during transient voltage, ensuring stable power recovery and system safety.
4. High-temperature Insulation Technology - Pioneered in this project, it ensures high resistance to electrolyte leakage and integrates real-time insulation detection across the system to mitigate arcing risks associated with insulation failures.

Impact and Future Directions

The results derived from Huawei's BESS evaluation system are already being applied to several significant projects, both domestically and internationally. Examples include energy storage plants in Ngari Prefecture, China, an energy storage facility in Uzbekistan, and a fully renewable microgrid in Saudi Arabia.

Professor Ouyang Minggao highlighted that the quantitative safety evaluation methodology is revolutionary within the industry, filled with noteworthy technological innovations that significantly enhance overall safety levels within BESS operations. The social, economic, and practical benefits of this project are immense, marking it as a notable advancement on a global scale.

Notably, Steven Zhou, the President of Huawei Digital Power’s Smart PV and Energy Storage Systems product line, stated that the next few years are critical for the growth of renewable energy sources, notably solar and wind energy, alongside energy storage systems. Zhou expressed hope for continued collaboration across the industry, regulatory bodies, associations, and organizations to enhance standardization and sharing of technological advancements.

In conclusion, Huawei Digital Power is committed to fostering large-scale, standardized, and high-quality growth in the sector. This commitment aims not only at advancing solar energy, wind energy, and energy storage as primary sources but also at bridging the global energy gap, thereby facilitating access to sustainable, reliable, and affordable energy for all.