2MW储能DCDC柜应用案例

2MW储能DCDC柜应用案例 | 2MW Energy-Storage DC-DC Cabinet Case

项目简介 | Project Introduction

本项目为2MW液冷型储能双向DCDC变流柜，由稳利达电力电子提供整套大功率直流变换与电池侧接入解决方案。整机由8台250kW液冷DCDC功率模块并联构成，额定功率2000kW；电池侧电压范围1000-1500Vdc（整机**大电流2000A），直流母线侧额定1000Vdc（整机**大电流2000A），转换效率98%。设备实现储能电池簇与1000V直流母线之间的大功率双向能量变换，并配置4个250A/1000V充电座为电池充电；另设3路200kW国标九孔（GB/T 20234.3-2015）直流充电接口，可同时向直流快充负载供电。整机采用液冷散热（液冷机组另行配置），配置触摸屏（支持远程监视）、RS485（Modbus RTU）与以太网（Modbus TCP）双通道通讯，保护完备，故障解除后自动恢复运行，适用于大型储能电站、光储充一体站、工商业储能及直流快充站等场景。

This project is a 2MW liquid-cooled bidirectional energy-storage DC-DC converter cabinet, delivered by Wenlida Power Electronics as a complete high-power DC conversion and battery-side integration solution. The unit is composed of eight 250kW liquid-cooled DC-DC power modules in parallel, with a rated power of 2000kW. The battery-side voltage range is 1000-1500Vdc (max 2000A for the whole unit), and the DC-bus side is rated 1000Vdc (max 2000A), with a conversion efficiency of 98%. The device realizes high-power bidirectional energy conversion between the battery cluster and the 1000V DC bus, and is equipped with four 250A/1000V charging sockets for battery charging. In addition, three 200kW national-standard 9-pin (GB/T 20234.3-2015) DC charging ports are provided to simultaneously supply DC fast-charging loads. The unit uses liquid-cooled heat dissipation (liquid-chiller unit configured separately), and features a touch screen (remote monitoring supported), dual-channel RS485 (Modbus RTU) and Ethernet (Modbus TCP) communication, with comprehensive protections and auto-recovery after fault clearance. It is suitable for large-scale energy-storage stations, PV-storage-charging stations, C&I energy storage and DC fast-charging depots.

系统拓扑说明 | System Topology Description

图2：2MW液冷储能DCDC柜应用场景 | Figure 2: 2MW liquid-cooled storage DC-DC cabinet application scenario

整套系统配置10寸本地触摸屏，供客户监控数据和触摸操作；提供一路RS485接口，支持遥控、遥测、遥调功能。系统配置4个250A/1000V充电座为电池充电；液冷机组另行配置。电池簇经直流断路器接入8台并联DCDC模块的电池侧（1000-1500Vdc），变换后汇集至1000V直流母线；3路200kW国标九孔充电接口从直流母线引出，向电动车辆或直流负载供电。所有电缆和信号线均采用底部下进线、下出线方式。

The system is equipped with a 10-inch local touch screen for on-site data monitoring and touch operation, and one RS485 port for remote telecontrol, telemetry and tele-adjustment. Four 250A/1000V charging sockets are configured to charge the battery; the liquid-chiller unit is configured separately. The battery cluster connects through DC breakers to the battery side of eight paralleled DC-DC modules (1000-1500Vdc), and after conversion is collected on the 1000V DC bus. Three 200kW national-standard 9-pin charging ports are tapped from the DC bus to supply EVs or DC loads. All power and signal cables enter and exit from the bottom of the cabinet.

触摸屏监控功能 | Touch-screen Monitoring Functions

完整全套参数表 | Complete Parameter Tables

表1 250kW储能DCDC模块电气参数 | Table 1 Electrical Parameters of 250kW Storage DC-DC Module

表2 整机规格参数 | Table 2 Complete Unit Specifications

设备搬运说明 | Equipment Handling Instruction

机柜底座开有两个方形孔，搬运时叉车两根货叉通过方形孔叉入机柜底部，移动过程中需保证缓慢、平稳，避免设备磕碰倾倒。

Two square holes are reserved at the cabinet base. Insert two forklift forks through the square holes to the cabinet bottom during handling. Move slowly and steadily to prevent collision or tipping-over.

应用场景 | Application Scenarios

典型应用 | Typical Applications

? 大型独立储能电站（1000V直流母线架构）

? 光储充一体站、储能+直流快充融合

? 工商业峰谷套利、需量管理储能

? 电池化成分容、动力电池检测大功率直流电源

? 数据中心、工业园区直流配电

? Large-scale standalone energy-storage stations (1000V DC-bus architecture)

? PV-storage-charging integration and storage + DC fast-charging fusion

? C&I peak-valley arbitrage and demand-charge management storage

? High-power DC power for battery formation/sorting and EV-battery testing

? Data-center and industrial-park DC distribution