06
2026
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02
Flexible Charging Stacks & Split-Type Terminals: Decoding the "Flexible & Efficient" Dual Core of New Energy Charging
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Flexible Charging Stack: An Innovative Force in the New Energy Charging Field
Amid the vigorous development of new energy vehicles (NEVs), charging technology is also undergoing continuous upgrading and iteration. As an innovative charging device, the flexible charging stack is gradually becoming one of the key technologies to solve charging challenges.
The core of the flexible charging stack lies in integrating multiple independent power modules to form a "shared power pool". It breaks the fixed mode of traditional charging piles, where "one charging gun corresponds to one fixed power output". Through technologies such as dynamic power distribution and intelligent coordinated control, it realizes a flexible energy supplementary method of "one vehicle, one charging session, and power allocation on demand".
It boasts numerous notable advantages:
Dynamic Power Distribution: It can combine multiple power modules into a "shared energy pool". When multiple vehicles are charging simultaneously, the system dynamically allocates module combinations through intelligent algorithms based on the battery status of each vehicle. The response time for power adjustment is extremely short, supporting seamless switching from low to high power. This enables it to meet the full-scenario needs of vehicles ranging from micro electric vehicles to heavy-duty commercial vehicles, significantly improving the utilization rate of charging equipment.
Wide-Range Voltage Self-Adaptation: Equipped with a high-frequency isolated bidirectional DC/DC converter, it offers a wider output voltage range, covering 99% of NEV models. Meanwhile, it has a built-in automatic battery protocol identification module, which can quickly match the optimal charging curve. For older vehicle models, it can also activate a "smooth charging mode" to avoid battery damage.
Multi-Gun Coordinated Control: Based on a model predictive control algorithm, it monitors the charging progress and battery status of each charging gun in real time, and dynamically allocates resources from the total power pool. When a new vehicle is connected, it can recalculate the allocation plan in a short time, with only a small reduction in the charging power of existing vehicles. It also supports reserving power channels for emergency vehicles to meet the charging needs of special vehicles.
Virtual Synchronous Machine Technology: It can simulate the inertia characteristics of synchronous generators. When the grid voltage/frequency fluctuates, it automatically adjusts the charging power to suppress the fluctuation amplitude. Additionally, it has a built-in active power filter, which can control the total harmonic distortion rate at a low level, reducing pollution to the power grid. It can also participate in grid peak shaving to achieve "friendly interaction" with the power grid.
Furthermore, the flexible charging stack also features advanced technological attributes such as modular hot-swapping, digital twin operation and maintenance, and V2G (Vehicle-to-Grid) bidirectional interaction. It enables zero-downtime maintenance and remote intelligent operation and maintenance, and can also convert NEVs into distributed energy storage resources, further enhancing its functionality and practicality.
Split-Type Terminal: A Capable Partner of the Flexible Charging Stack
The split-type terminal is usually a crucial component in the flexible charging stack system. Together with the charging stack rectifier cabinet, it forms a flexible DC split-type charging stack, and is generally configured in a modular manner.
The split-type terminal connects directly to vehicles for charging and includes components such as the pile body, charging gun, and charging controller. It has the following characteristics:
Power Sharing and Flexible Charging: It can share power modules with other terminals of the charging stack. All power modules are centrally controlled by the charging stack, which can automatically allocate power according to the charging requirements sent by the vehicle’s BMS (Battery Management System). The allocation strategies are flexible and diverse, capable of meeting the charging needs of various vehicle models with different power requirements.
Strong Applicability: The charging stack can intelligently allocate ultra-wide voltage modules to each charging terminal. Therefore, the split-type terminal can charge electric vehicles of different brands and voltage levels simultaneously. It usually supports the online use of multiple charging guns, making it well-suited for scenarios with diverse vehicle models such as public parking lots.
Smooth Expansion: As the charging rate of NEV batteries increases and the demand for charging power grows, the power of the charging stack’s power cabinet can be expanded to meet higher future charging demands, giving it excellent scalability.
The flexible charging stack and split-type terminal work in tandem to provide NEV users with an efficient, flexible, and convenient charging experience. They effectively improve the utilization rate and compatibility of charging facilities, reduce users’ charging waiting time, and are more grid-friendly. Together, they serve as important technical support for promoting the development of the NEV industry and facilitating the realization of green travel.
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