3.25MW光伏直供电解槽DCDC系统 | 33路MPPT光伏·500V直流母线·400V制氢输出·绿氢

3.25MW光伏直供电解槽DCDC系统 | 33路MPPT光伏·500V直流母线·400V制氢输出·绿氢 | 3.25MW PV-Direct Electrolyzer DCDC System | 33-Channel MPPT · 500V DC Bus · 400V H? Output · Green Hydrogen

项目简介 | Project Introduction

本项目为3.25MW光伏直供电解槽DCDC系统（绿氢制氢电源），由稳利达电力电子提供整套光伏MPPT汇流、直流母线变换与电解槽供电一体化解决方案。系统由两类DCDC模块构成：光伏侧33台100kW MPPT DCDC（光伏600-1500Vdc，变换至500Vdc直流母线），制氢侧25台130kW DCDC（将500Vdc母线进一步变换为400Vdc电解槽直流输出），合计制氢功率3.25MW，转换效率98%。系统实现光伏阵列经500V直流母线直供400V电解槽，无需交流并网环节，大幅减少变换损耗，是典型的"光伏—电解水—绿氢"直供架构。整机配置触摸屏（支持远程监视）、RS485（Modbus RTU）与以太网（Modbus TCP）双通道通讯，保护完备，强制风冷、IP54防护，适用于可再生能源制氢、光伏直供电解槽、工业绿氢站等场景。

This project is a 3.25MW PV-direct electrolyzer DCDC system (green-hydrogen production power supply), delivered by Wenlida Power Electronics as an integrated solution of PV MPPT collection, DC-bus conversion and electrolyzer supply. It comprises two types of DCDC modules: on the PV side, thirty-three 100kW MPPT DCDC modules (PV 600-1500Vdc, converted to a 500Vdc DC bus); on the hydrogen side, twenty-five 130kW DCDC modules (further converting the 500Vdc bus to a 400Vdc electrolyzer DC output), totaling 3.25MW hydrogen-production power at 98% efficiency. The system realizes direct PV-to-electrolyzer supply through the 500V DC bus without an AC grid-tie stage, greatly reducing conversion losses — a typical "PV – water electrolysis – green hydrogen" direct architecture. The unit features a touch screen (remote monitoring), dual-channel RS485 (Modbus RTU) and Ethernet (Modbus TCP) communication, comprehensive protections, forced air cooling and IP54 protection. It suits renewable-energy hydrogen production, PV-direct electrolyzers and industrial green-hydrogen stations.

系统拓扑说明 | System Topology Description

图2：3.25MW光伏直供电解槽DCDC系统应用场景 | Figure 2: 3.25MW PV-direct electrolyzer DCDC system 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。33路光伏阵列（600-1500Vdc）经33台MPPT DCDC汇入500Vdc直流母线，再由25台制氢DCDC变换为400Vdc输出，分5路（每路650kW）向电解槽供电。整套系统由7台光伏柜、5台制氢电源柜、1台汇流柜组成（单机800×1000×2100mm）。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. Thirty-three PV strings (600-1500Vdc) are collected by thirty-three MPPT DCDC modules onto a 500Vdc DC bus, then converted by twenty-five hydrogen DCDC modules to 400Vdc output, supplied to the electrolyzer in 5 channels (650kW each). The whole system consists of 7 PV cabinets, 5 hydrogen-power cabinets and 1 junction cabinet (800×1000×2100mm each). All power and signal cables enter and exit from the bottom.

完整全套参数表 | Complete Parameter Tables

表1 光伏MPPT DCDC模块（100kW）电气参数 | Table 1 PV MPPT DCDC Module (100kW) Parameters

表2 制氢DCDC模块（130kW）电气参数 | Table 2 Hydrogen DCDC Module (130kW) Parameters

表3 整机规格参数 | Table 3 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

• 光伏直供电解水制氢（绿氢）电站
• 可再生能源制氢、风光储氢一体化
• 工业电解槽大功率直流电源
• 质子交换膜（PEM）/ 碱性（AWE）电解槽供电
• 化工、冶金、电子行业用氢自备电源
•  PV-direct water-electrolysis (green hydrogen) stations
•  Renewable-energy hydrogen production and wind-PV-storage-hydrogen integration
•  High-power DC supply for industrial electrolyzers
•  PEM / alkaline (AWE) electrolyzer power supply
•  On-site hydrogen supply for chemical, metallurgical and electronics industries