船舶岸电供电也成为大铲湾践行环保承诺的举措。“但是作为一门新的工艺技术,国内岸电技术的应用案例并不多,技术解决方案本身没有太多经验可以参考。”陈军一语道出大铲湾上马岸电项目之初大的挑战,“我们要寻找高品质、高性价比,能满足自身港口特定需求的岸电解决方案。”
作为岸电解决方案的核心技术,西门子的岸电变频电源设备使陈军的愿望变成了现实。
西门子专注于船舶电气和自动化技术已有**历史,相比其他竞争对手,西门子大型传动部开发的**于船舶岸电供电系统的岸电**变频电源在并船切换、逻辑控制等关键领域表现**,而且具备工业级的产品品质,完**够满足大铲湾岸电工程的诉求。
作为此次主体岸电系统设备供货方,西门子充分考虑大铲湾码头停靠船舶的船型及设计靠泊吨位,确定大铲湾码头岸电的供电容量为5MVA,并为用户提供2套 2.5MVA 的集装箱式岸电系统设备,整体覆盖 4 个泊位,既可实现单独使用,亦可并联实现高 5MVA 的大容量、稳定电源给进港船只。而且,两个相同2.5MVA容量的岸电系统所需备品备件相同,更加节省成本。
西门子岸电变频电源设备的优还体现在系统设计上。对大铲湾码头而言,港区主要停靠船舶供电频率为60Hz,主要靠泊船舶的供电电压为6.6kV。西门子采用了“高-低-高”系统解决方案,即10kV-50Hz输入,经过降压变压器、低压变频电源及升压变压器,,变为6.6kV-60Hz输出,通过变频电源将岸上50Hz频率转化为60Hz输出给船侧,实现船电向岸电的在线平稳切换。
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