The FGI DC/DC module has been successfully applied in the flow energy storage project in Singapore
FGI's 100kW DCDC converter and 630kW bidirectional converter, which were custom-developed for a client from Jiangsu Province in Singapore, worked in coordination, successfully solving the startup problem of the flow battery energy storage system. As a "technology pioneer" of core equipment for flow batteries, this DCDC module, with its 0V undisturbed start-up technology, provides a solid guarantee for the smooth implementation and operation of customers' flow battery projects.
1.Technical features of the FGI100kW DCDC module
(1) Wide-voltage dynamic matching technology
Cover a wide area
The low-voltage side is 0-850V (0-±275A), and the high-voltage side is 50-900V, perfectly adapting to the wide voltage fluctuation characteristics of all-vanadium, iron-chromium and other flow batteries.
Lead in efficiency
By adopting the interlaced parallel technology of silicon carbide (SiC) devices and 6-phase units, the full-load efficiency reaches 99.5%, leading the industry.
(2)Intelligent 0V non-impact activation
Optimize the charging logic
Through pre-charge detection and stepwise voltage boosting algorithm, the smooth start-up of the flow battery at 0V state is achieved, avoiding electrolyte backflow and electrode damage, and extending the battery life by more than 20%.
cost optimization
Reduce the design of additional pre-charging circuits, saving approximately 15% of hardware costs per module.
(3)Modular redundant design
Flexible expansion
Supports multi-module parallel connection, with a single-unit power coverage of 50-100kW, and the system can be expanded to the MW level.
N+1 redundant backup
When any module fails, the system automatically switches to the standby unit to ensure continuous operation.
2.DCDC technology contributes to the development of the flow battery industry
As the cost of flow batteries continues to decline (expected to fall below 1.5 yuan /Wh by 2025), the high efficiency and intelligence of DCDC modules will become the focus of industry competition.
(1)Photovoltaic storage direct flexible application
Through the deep coupling of DCDC and PCS, the DC load is directly driven, reducing the conversion loss of the supporting power supply such as photovoltaic systems.
(2)Empowered by artificial intelligence
The AI power prediction algorithm realizes the self-optimization of the charging and discharging strategy of the DCDC module.
3.FGI100kW DCDC module technology
FGI has been deeply engaged in the power electronics field for over 30 years, covering scenarios such as flow batteries, hydrogen energy, and rail transit.
Core advantage
(1) Full-stack self-research and development
Mastering key technologies such as topology design, thermal simulation, and intelligent control.
(2) Stringent verification
Passed 67 reliability tests including salt spray, vibration, and high-low temperature cycling.
(3) Quick response
Supporting rapid customized design and development, providing lifetime maintenance services.
