120KW DC + 7KW AC Charger Mixed Deployment Project

In the trend of diversified development of new energy charging scenarios, a single charging device can hardly meet the differentiated needs of different users. By deploying the mixed solution of D30 120KW DC charger (floor-mounted) and EC01 7KW AC charger (floor-mounted), we have successfully built a fast-slow complementary and efficient charging network for customers, comprehensively solving the core pain points in commercial operations.📑Core Needs and Technical Challenges
The customer has four clear core demands: faster charging speed, higher compatibility, intelligent management, and good economic benefits. During the project promotion, there were three major technical difficulties: balancing the equipment heat dissipation performance under high power density; solving the impact of high-power charging on the power grid; and breaking through the algorithm bottleneck of dynamic load distribution for multiple devices.
🖥️Solutions and Implementation Highlights
In response to scenario needs, we achieved precise breakthroughs through technical optimization:
⚙️D30 DC Charger Upgrade: Adopting an optimized heat dissipation channel design and equipped with an intelligent temperature-controlled fan that can automatically adjust the speed according to real-time power, ensuring 120KW high-power output while effectively controlling temperature, thus resolving the contradiction between high power density and thermal management.
⚙️Power Grid Adaptation Innovation: Introducing a dual protection mechanism of pre-charging and soft start to greatly suppress inrush current impact at the initial stage of charging, reduce interference to the power grid, and ensure stable power quality.
⚙️Intelligent Load Management: By optimizing the dynamic load distribution algorithm, intelligent scheduling of power resources between D30 and EC01 devices is realized, avoiding power overload during peak hours and improving the overall operational efficiency of the station.Project Achievements
This mixed deployment solution has been replicated in dozens of commercial stations. Leveraging "fast charging for quick energy, slow charging for parking" flexibility, equipment utilization is optimized. Customer data shows a 40% boost in charging service coverage. Coupled with reduced O&M costs from stable operations, the investment can be recouped within 1-2 years, enhancing both economic returns and operational efficiency.
For customized fast-slow charging mixed deployment solutions, click https://www.fescharging.com/ to learn more.