门机节电器项目应用案例
Door-Crane Energy Saver Project Case
|
出品方：稳利达电力电子 | Wenlida Power Electronics |
项目简介 | Project Introduction
本门机节电器为稳利达电力电子推出的港口门座式起重机（门机）势能回收专用设备，基于大功率双向DCDC变换与超级电容储能技术，实现门机下放势能高效回收再利用。设备在门机下降过程中将势能转换为电能储存于超级电容，在抬升或负载作业时释放，显著降低电能消耗与电网冲击。系统由350A双向DCDC单元与超级电容储能簇组成，具备10寸触摸屏监控、RS485远程通讯功能，保护机制完备，运行稳定可靠，广泛适用于各类港口门机、岸桥及重载起升设备的节能改造项目。
This door-crane energy saver, developed by Wenlida Power Electronics, is a dedicated potential-energy recovery device for port portal cranes (door cranes), based on high-power bidirectional DC-DC conversion and super-capacitor energy-storage technology. It efficiently recovers and reuses the potential energy released during crane lowering. During descent, the device converts potential energy into electricity stored in super-capacitors, then releases it during lifting or loaded operation, significantly reducing energy consumption and grid impact. Composed of a 350A bidirectional DC-DC unit and a super-capacitor energy-storage bank, it features 10-inch touch-screen monitoring and RS485 remote communication, with comprehensive protection and stable performance. It is widely applicable to energy-saving retrofit projects for various port cranes, quay cranes and heavy-duty lifting equipment.
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、低压成套设备、电磁兼容、储能系统接入、电力电缆设计、储能电池管理、安全防护等全套规范，同时兼容部分IEC国际标准，保障设备安全可靠运行。
Product design, manufacturing and inspection strictly comply with national & industrial standards, covering environmental tests for electrical & electronic products, low-voltage switchgear, EMC, energy-storage grid-connection, power-cable design, battery-management and safety protection. Partial IEC international standards are also adopted to ensure safe and reliable equipment operation.
系统拓扑说明 | System Topology Description
|
图1：系统拓扑图 | Figure 1: System Topology Diagram |
图2：门机节电器应用场景 | Figure 2: Door-crane energy saver application scenario
整套系统配置10寸本地触摸屏，实现本地数据监控、触摸功能操作；配置1路RS485通讯接口，支持遥控、遥测、遥调远程功能。系统由350A双向DCDC变换单元、超级电容储能簇组成；超级电容接入超容侧端口，DCDC单元连接变频器直流母线，实现门机下放势能的回收储存与作业时能量释放。
The system is equipped with a 10-inch local touch screen for on-site data monitoring and touch-based operation. One RS485 communication port is provided for remote telecontrol, telemetry and tele-adjustment. The system consists of a 350A bidirectional DC-DC converter unit and a super-capacitor energy-storage bank. Super-capacitors connect to the super-cap side port, and the DC-DC unit links to the inverter DC bus to recover and store lowering potential energy and release it during operation.
势能回收计算 | Potential-Energy Recovery Calculation
|
计算项目 Item |
结果 Result |
|
工况条件 Working Condition |
重量160吨 Weight 160t；高度3m；下降速度 3m/min = 0.05m/s |
|
势能回收能量 Potential Energy |
E = m·g·h = 160t × 9.8 × 3m = 4704KJ ≈ 1.31kWh |
|
按70%效率转换 70% Efficiency |
E = 4704KJ × 0.7 = 3292.8KJ ≈ 0.915kWh |
|
势能回收功率 Recovery Power |
P = m·g·v = 160t × 9.8 × 0.05 = 78.4kW |
|
按70%效率转换 70% Efficiency |
P = 78.4kW × 0.7 = 54.88kW |
|
超容储能计算 Super-cap Energy Storage |
1/2·C·U? = 1/2 × 93 × (384? ? 192?) = 3856.8KJ |
|
功率计算 Power Calculation |
P = U·I = 192V × 350A = 67.2kW |
|
结论 Conclusion：采用12个96V93F模组（4串3并）满足回收能量需求，350A模块满足功率需求。System with 12 pcs 96V93F modules (4S3P) meets recovery energy demand; 350A module meets power demand. |
完整全套参数表 | Complete Parameter Tables
表1 350A DCDC单元电气参数 | Table 1 Electrical Parameters of 350A DC-DC Unit
|
序号 No. |
电气类目 Category |
详细类目 Item |
规格 Specification |
|
1 |
直流电压 DC Voltage |
超容侧直流电压 Super-cap-side DC Voltage |
192-384Vdc |
|
|
|
母线侧直流电压 Bus-side DC Voltage |
450-750Vdc |
|
2 |
直流电流 DC Current |
超容侧直流电流 Super-cap-side DC Current |
≤350A |
|
|
|
母线侧直流电流 Bus-side DC Current |
≤150A |
|
3 |
转换效率 Conversion Efficiency |
HV 750V, LV 600V |
98% (Obtained under lab conditions) |
|
4 |
额定功率 Rated Power |
|
67.2kW |
|
5 |
工作模式 Operation Mode |
|
Constant-voltage / constant-current (Configurable) |
|
6 |
电压稳定度 Voltage Stability |
静态 Static |
±1% |
|
|
|
动态 Dynamic |
±3% |
|
7 |
电流稳定度 Current Stability |
静态 Static |
±1% |
|
|
|
动态 Dynamic |
±3% |
|
8 |
通信接口 Communication Port |
RS485, fully isolated |
Modbus RTU protocol |
|
|
|
CAN2.0A/B, fully isolated |
Up to 1M/S |
|
9 |
供电方式 Power Supply |
|
220Vac or DC customization |
|
10 |
设置方式 Configuration |
|
Via PC or upper computer by communication |
|
11 |
保护 Protection |
- |
HV/LV side over-voltage & under-voltage protection, over-current, over-temperature, communication fault protection; auto-recovery after fault clearance |
|
12 |
尺寸 Dimension |
L×W×H |
500mm × 543mm × 154mm |
|
13 |
重量 Weight |
|
55kg |
|
14 |
操作方式 Control Mode |
|
Auto or communication-based control |
|
15 |
散热方式 Cooling |
|
Air cooling |
表2 超级电容储能簇参数 | Table 2 Super-capacitor Energy-storage Bank Parameters
|
项目 Item |
规格 Specification |
|
模组配置 Module Configuration |
12 pcs 96V 93F modules, 4S3P |
|
超容电压范围 Super-cap Voltage Range |
192-384V |
|
储能容量 Energy Storage |
3856.8KJ (1/2·C·U?) |
|
放电功率 Discharge Power |
67.2kW (192V × 350A) |
表3 整机规格参数 | Table 3 Complete Unit Specifications
|
模块 Module |
项目 Item |
参数 Parameter |
|
变频器直流母线接口参数 |
电压范围 Voltage Range (V) |
450-750 |
|
**大电流 Max. Current (A) |
150 |
|
|
额定功率 Rated Power (kW) |
67.2 |
|
|
整机基本参数 |
工作温度范围 Operating Temp. (℃) |
-10 ~ +45 |
|
相对湿度 Relative Humidity |
0 ~ 90%, non-condensing |
|
|
**工作海拔 Max. Operating Altitude (m) |
2000 |
|
|
冷却方式 Cooling Mode |
Natural cooling (battery liquid-cooled) |
|
|
显示 Display |
Touch screen |
|
|
系统供电 System Power Supply |
AC220V (User-supplied) |
|
|
通讯方式 Communication |
RS485 (Modbus RTU) / Ethernet (Modbus TCP) |
|
|
防护等级 Protection Class |
IP54 |
|
|
重量 Weight (kg) |
Approx. 800 |
|
|
尺寸 (宽×深×高 mm) |
800 × 800 × 2100 (Tentative) |
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
? 港口门座式起重机（门机）势能回收
? 岸桥、轨道吊等重载起升设备节能改造
? 冶金、矿山等大惯量升降装备能量回收
? 冲击性负载功率平抑与电网缓冲
? 高架行车、装卸机械势能再利用
? Potential-energy recovery for port portal cranes
? Energy-saving retrofit of quay cranes, rail cranes and heavy lifting equipment
? Energy recovery for large-inertia lifting equipment in metallurgy & mining
? Surge-load power stabilization and grid buffering
? Potential-energy reuse for overhead cranes and handling machinery
|
定制说明：稳利达电力电子本系列产品支持定制开发，可根据现场工况调整功率、接口、运行逻辑，适配不同项目的建设需求。 Customization Note: Customization available by Wenlida Power Electronics. Power rating, ports and operation logic can be adjusted according to site conditions to meet various project requirements. |
沪公网安备31011402011875
TONGJI
021-31587108
947074041@qq.com
在线留言
