一、产品概述 / Product Overview
中文：传统交流UPS存在交-直-交多级电能变换损耗，且逆变器存在单点故障风险。DN-DC_VSS直流侧应急电源直接接入数据机房高压直流母线，无需逆变转换，专门针对市电暂降、电网晃电、瞬时断电等电力故障场景提供直流侧应急功率支撑。设备可适配锂电池、超级电容两种储能介质，以毫秒级速度稳定母线电压，**填补柴油发电机组启动延时空白，杜绝服务器、算力集群宕机重启问题，广泛适配新建HVDC直流机房、AI算力数据中心及存量机房升级改造项目。
English：Traditional AC UPS suffers power loss from multi-stage AC-DC-AC conversion and single-point failure risks of inverters. The WLD-DC_VSS DC-side emergency power supply is directly connected to the high-voltage DC bus of data centers without inverter conversion. It provides DC-side emergency power support for power grid faults including mains voltage sag, power flicker and instantaneous power failure. Adopting lithium battery or supercapacitor as energy storage media, the equipment stabilizes bus voltage at millisecond level, perfectly covers the start delay of diesel generators, and avoids downtime and restart of servers and computing clusters. It is widely applicable for new-built HVDC DC rooms, AI computing data centers and renovation projects of existing computer rooms.
二、工作原理 / Working Principle
中文：市电正常工况下，系统全程实时采集监测直流母线电压，对储能单元进行智能浮充、均衡维护，整机处于热备用待命状态，低耗节能。当电网出现异常，母线电压跌落至预设保护阈值时，高速DSP数字化控制器瞬时响应，驱动双向DC/DC模块释放储能能量，快速补偿、稳定直流母线电压，持续保障后端负载稳定运行，直至柴油发电机组成功并网接管。市电恢复正常后，设备自动退出应急工作模式，回归常态监测与充电维护状态，全程无人值守、全自动运行。
English：Under normal mains conditions, the system collects and monitors DC bus voltage in real time, performs intelligent floating charge and balanced maintenance for energy storage units, and the whole machine is in hot standby state with low energy consumption. When grid abnormalities occur and the bus voltage drops to the preset protection threshold, the high-speed DSP digital controller responds instantly, drives the bidirectional DC/DC module to release stored energy, quickly compensates and stabilizes the DC bus voltage, and continuously ensures the stable operation of rear loads until the diesel generator is successfully connected to take over the power load. After the mains recovers, the equipment automatically exits the emergency mode and returns to normal monitoring and charging maintenance state with full-automatic unattended operation.
三、核心产品优势 / Core Advantages
1. 毫秒级**速响应，零切换延时 / Millisecond-level Response, Zero Switching Delay
中文：搭载全数字化DSP高速控制系统，24小时不间断监测母线工况，电网故障瞬间触发储能释放，无机械切换动作、无供电间隙，**杜绝瞬时断电导致的设备宕机、数据丢失问题。
English：Equipped with a full-digital high-speed DSP control system, it monitors bus operating conditions 24/7 and triggers energy storage release instantly when grid faults occur. With no mechanical switching action and no power supply gap, it completely avoids equipment downtime and data loss caused by instantaneous power failure.
2. 无逆变链路，可靠性与能效双提升 / No Inverter Link, Improved Reliability & Efficiency
中文：直接作用于直流母线，摒弃传统UPS交直流多级变换架构，消除逆变器单点故障隐患，大幅降低设备故障概率；减少电能转换损耗，有效提升机房整体供配电系统运行效率。
English：Directly acting on the DC bus, it abandons the multi-stage AC-DC conversion architecture of traditional UPS, eliminates the single-point failure risk of inverters, greatly reduces equipment failure probability, cuts down power conversion loss, and effectively improves the overall operation efficiency of the data center power supply and distribution system.
3. 模块化冗余设计，支持热插拔运维 / Modular Redundant Design, Hot-swappable Maintenance
中文：标准化功率模块架构，支持N+X冗余备份、多机并联扩容，功率覆盖100kW-5MW，可按需灵活配置。核心模块支持在线热插拔**换、维护，无需整机停机，**保障机房供电连续性，适配大型数据中心高频运维需求。
English：Adopting a standardized power module architecture, it supports N+X redundant backup and multi-machine parallel expansion with a power range of 100kW-5MW for flexible configuration on demand. Core modules support online hot-swappable replacement and maintenance without overall shutdown, maximizing the continuity of data center power supply and adapting to the high-frequency operation and maintenance needs of large-scale data centers.
4. 双储能可选，适配多场景需求 / Dual Energy Storage Options for Multi-scenario Adaptation
中文：可灵活选配超级电容或锂电池储能方案。超级电容方案循环寿命长、抗扰动能力强，适配电网频繁晃电场景；锂电池方案应急续航时长充足，满足柴油发电机启动延时较长的项目需求。
English：Supercapacitor or lithium battery energy storage schemes are optional flexibly. The supercapacitor scheme features long cycle life and strong anti-interference capability, suitable for scenarios with frequent grid power flicker; the lithium battery scheme provides sufficient emergency endurance to meet project demands with long diesel generator start delay.
5. 柔性无冲击投切，保护精密负载 / Flexible Impact-free Switching for Precision Load Protection
中文：采用双向DC/DC柔性控制技术，设备投切、充放电全过程电压电流平稳无冲击，不会产生母线电压震荡，全面保护后端服务器、算力设备等精密IT负载。
English：Adopting bidirectional DC/DC flexible control technology, the voltage and current remain stable without impact during the whole process of equipment switching, charging and discharging, no bus voltage oscillation is generated, which fully protects precision IT loads such as rear servers and computing equipment.
6. 全维度安全防护，运行稳定可靠 / Full-dimensional Safety Protection, Stable & Reliable Operation
中文：内置完善的软硬件保护机制，涵盖过压、欠压、过流、过热、短路、反接等多重保护；搭载智能BMS电池管理系统，实时监测储能单元SOC、温度、状态，提前预警故障，保障设备长期安全运行。
English：Built with perfect software and hardware protection mechanisms, including overvoltage, undervoltage, overcurrent, overheating, short circuit and reverse connection protection. Equipped with an intelligent BMS battery management system, it real-timely monitors the SOC, temperature and status of energy storage units and gives early fault warnings to ensure long-term safe operation of equipment.
7. 智能通讯对接，便捷远程运维 / Intelligent Communication & Convenient Remote O&M
中文：标配Modbus-RTU、CAN通用通讯接口，可无缝对接机房动环监控、智慧运维平台，实时上传设备运行参数、工作状态、告警信息、储能状态，实现全天候远程监控、智能运维。
English：Equipped with standard Modbus-RTU and CAN universal communication interfaces, it can seamlessly connect with data center environment monitoring and intelligent O&M platforms, real-timely upload equipment operating parameters, working status, alarm information and energy storage status, realizing 24/7 remote monitoring and intelligent operation and maintenance.
四、型号规格 / Model Specifications
型号命名规则 / Model Naming Rule：DN-DC_VSS-XXXK
DN：迪能电气
DC_VSS：直流电压支撑系统（直流侧应急电源） / DC Voltage Support System (DC-Side Emergency Power Supply)
XXXK：额定功率(kW) / Rated Power (kW)
|
机型型号 / Model
|
DN-DC_VSS-100K
|
DN-DC_VSS-200K
|
DN-DC_VSS-500K
|
DN-DC_VSS-1M~5M
|
|---|---|---|---|---|
|
储能侧电压 / Storage Voltage
|
300-700Vdc
|
300-700Vdc
|
300-700Vdc
|
定制 / Customized
|
|
机房母线电压 / Data Center Bus Voltage
|
500-800Vdc
|
500-800Vdc
|
500-800Vdc
|
定制 / Customized
|
备注 / Remark：功率、电压、风冷/水冷散热方式均可根据项目需求定制开发 / Power, voltage, air cooling and water cooling modes can be customized according to project requirements.
五、典型应用场景 / Typical Application Scenarios
中文：
1. 高压直流（HVDC）数据中心机房直流母线应急保电；
2. AI算力机房、大模型服务器集群，抵御电网晃电、电压暂降干扰；
3. 存量传统高压直流机房升级改造，无需改动原有主配电回路；
4. 通信数据机房、算力微电网，配合柴油发电机组，弥补启动供电延时。
English：
1. Emergency power protection for DC bus of high-voltage direct current (HVDC) data centers;
2. AI computing data centers and large model server clusters to resist grid power flicker and voltage sag interference;
3. Upgrade and renovation of existing traditional HVDC data centers without modifying the original main power distribution loop;
4. Communication data rooms and computing microgrids, cooperating with diesel generators to make up for power supply start delay.
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