280kW装船机势能回收节电器 | 65t配重·12m下放·400V锂电池·98%高效

280kW装船机势能回收节电器 | 65t配重·12m下放·400V锂电池·98%高效 | 280kW Ship-Loader Potential-Energy Recovery | 65t Load · 12m Drop · 400V Li-Battery · 98% Efficiency

项目简介 | Project Introduction

本项目为港口散货装船机势能回收节电器，由稳利达电力电子提供整套锂电池储能与DCDC变换解决方案。系统由2台140kW双向DCDC模块并联构成（整柜电池侧**大功率280kW），电池侧额定400Vdc（整机**大电流700A），接入装船机变频器直流母线（500-750Vdc，整机**大电流280A），转换效率98%。装船机臂架/料斗下放65t配重（下放高度12m）时，重力势能经DCDC转换为电能存入400V锂电池组（配≥1.5kWh）；提升或重载作业时，电池能量经DCDC回馈至直流母线辅助电机做功，显著降低装船机电能消耗与电网冲击。系统配置触摸屏、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，自然冷却（电池液冷）、IP20防护，适用于港口装船机、卸船机、门座起重机、抓斗等下放势能回收场景。

This project is a potential-energy-recovery energy saver for a bulk-cargo ship loader, delivered by Wenlida Power Electronics as a complete Li-battery storage and DC-DC conversion solution. The system consists of two 140kW bidirectional DC-DC modules in parallel (battery-side peak 280kW for the whole unit): battery side rated 400Vdc (max 700A), connected to the ship loader inverter DC bus (500-750Vdc, max 280A), at 98% efficiency. When the loader's arm/spout lowers a 65t load over 12m, gravitational potential energy is converted via DC-DC into electricity stored in a 400V Li-battery pack (≥1.5kWh); during lifting or heavy operation, the stored energy is fed back to the DC bus to assist the motor, significantly reducing energy consumption and grid impact. The system features a touch screen, dual-channel RS485 (Modbus RTU) and Ethernet (Modbus TCP) communication, comprehensive protections with auto-recovery, natural cooling (battery liquid-cooled) and IP20 protection. It suits potential-energy recovery for ship loaders, unloaders, portal cranes and grabs at ports.

系统拓扑说明 | System Topology Description

图2：装船机节电器应用场景 | Figure 2: Ship-loader energy saver 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。400V锂电池组经2台并联DCDC模块接入装船机变频器直流母线（500-750Vdc）；装船机下放时电池充电储能，提升时电池放电回馈母线，形成"势能—电能—机械能"的闭环能量利用。

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. The 400V Li-battery pack connects through two paralleled DC-DC modules to the ship loader inverter DC bus (500-750Vdc). During lowering, the battery charges and stores energy; during lifting, it discharges back to the bus, forming a closed-loop "potential energy – electrical energy – mechanical energy" utilization.

势能回收计算 | Potential-Energy Recovery Calculation

完整全套参数表 | Complete Parameter Tables

表1 140kW DCDC模块电气参数 | Table 1 140kW DC-DC Module Parameters

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

• 港口散货装船机、卸船机下放势能回收
• 门座起重机、抓斗起重机配重势能回收
• 冶金铸造起重机、料坝提升机构节能改造
• 大型电梯、立体车库重力势能回收
• 冲击性负载电网缓冲与功率平抑
• Lowering-energy recovery for port ship loaders and unloaders
• Counterweight-energy recovery for portal cranes and grab cranes
• Energy-saving retrofit of metallurgical cranes and hoisting mechanisms
• Gravitational-potential recovery for large elevators and automated parking systems
• Grid buffering and power smoothing for surge loads