1.5MW储能DCDC柜应用案例

1.5MW储能DCDC柜应用案例 | 1.5MW Energy-Storage DC-DC Cabinet Case

项目简介 | Project Introduction

本项目为1.5MW储能双向DCDC变流柜，由稳利达电力电子提供整套直流变换与电池侧接入解决方案。整机由8台200kW双向DCDC功率模块并联构成，额定功率1500kW，直流母线额定电压1500Vdc，电池侧电压范围1040-1490Vdc，**大电流1443A。设备实现储能电池簇与1500V直流母线之间的双向能量变换，支持恒压、恒流、恒功率多模式运行，用于大型储能电站、光伏配储、工商业储能及微电网系统。整机配置触摸屏（支持远程监视）、RS485（Modbus RTU）与以太网（Modbus TCP）通讯，具备完备的高压侧/低压侧过压、欠压、过流、过温及通讯保护，故障解除后可自动恢复运行。

This project is a 1.5MW bidirectional energy-storage DC-DC converter cabinet, delivered by Wenlida Power Electronics as a complete DC conversion and battery-side integration solution. The unit is composed of eight 200kW bidirectional DC-DC power modules in parallel, with a rated power of 1500kW, a DC-bus rated voltage of 1500Vdc, and a battery-side voltage range of 1040-1490Vdc at a maximum current of 1443A. The device realizes bidirectional energy conversion between the battery cluster and the 1500V DC bus, supporting constant-voltage, constant-current and constant-power operation modes. It is used in large-scale energy-storage stations, PV-plus-storage, C&I energy storage and microgrid systems. The cabinet features a touch screen (with remote monitoring), RS485 (Modbus RTU) and Ethernet (Modbus TCP) communication, and comprehensive HV/LV over-voltage, under-voltage, over-current, over-temperature and communication protections; operation auto-recovers after fault clearance.

执行参考标准 | Reference Standards

产品设计、生产、检验严格遵循国家及行业相关标准，涵盖电工电子环境试验（低温、高温、恒定湿热）、低压成套开关设备、电磁兼容（静电、射频、电快速瞬变脉冲群、浪涌、射频场感应传导、电压暂降、工业环境发射）、高压/低压预装式变电站、电力工程电缆设计、储能系统接入配电网运行控制规范（Q/GDW 696/1564/1884）、储能电池组及管理系统技术规范等全套规范，同时兼容IEC 60269、IEC 60439、IEC 61850系列国际标准，保障设备安全可靠运行。

Product design, manufacturing and inspection strictly comply with national and industrial standards, covering electrical/electronic environmental tests (low/high temperature, damp heat), low-voltage switchgear, EMC (ESD, RF, EFT, surge, conducted RF, voltage dips, industrial emissions), HV/LV prefabricated substations, power-cable design, energy-storage grid-connection codes (Q/GDW 696/1564/1884), and battery-stack & BMS specifications. IEC 60269, IEC 60439 and the IEC 61850 series are also adopted to ensure safe and reliable operation.

系统拓扑说明 | System Topology Description

图2：储能DCDC柜应用场景 | Figure 2: Energy-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。电池侧经直流断路器接入DCDC模块低压端口，高压侧经直流母线汇集后接入升压变流/并网点；8台200kW模块并联实现1.5MW总功率。所有电缆和信号线均采用底部下进线、下出线方式，便于柜内布线与维护。

The system is equipped with a 10-inch local touch screen for on-site data monitoring and touch operation. One RS485 port is provided for remote telecontrol, telemetry and tele-adjustment. The battery side connects to the low-voltage port of each DC-DC module through DC breakers; the high-voltage side is collected on a DC bus and then fed to the step-up converter / grid-connection point. Eight 200kW modules are paralleled to achieve the total 1.5MW power. All power cables and signal cables enter and exit from the bottom of the cabinet for convenient internal wiring and maintenance.

完整全套参数表 | Complete Parameter Tables

表1 200kW储能DCDC模块电气参数 | Table 1 Electrical Parameters of 200kW 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（1500V直流母线架构）

? 光伏/风电配储、风光储一体化电站

? 工商业峰谷套利储能、需量管理

? 微电网、数据中心UPS后备储能

? 电网调频调压、需求侧响应项目

? Large-scale standalone energy-storage stations (1500V DC-bus architecture)

? PV / wind plus storage, wind-solar-storage integrated plants

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

? Microgrid and data-center backup energy storage

? Grid frequency/voltage regulation and demand-response projects