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央广网8月10日消息(记者夏震宇 通讯员唐俊德)全国第十三届全运会进入开幕倒计时20天。此前,国网天津公司举行全运会首次无脚本综合应急演练。其实,在保电一线,国网天津公司有一批可称为“神器”的高科技成果和设施应用于全运会,组成陆军、网军、空军“部队”,助力保电任务毕其功于一役。记者日前分别来到全运会开幕式场馆奥林匹克中心体育场用户变电站、城西公司滨湖开闭站、35千伏凌庄子变电站、输电运检室和位于城南公司区域的国网天津电力城市供电网第一应急抢修中心,探访这些平常少为人知的秘密。
“陆军”:“眨眼”供电磁飞轮

在国网天津电力城市供电网第一应急抢修中心,一个宽3米、长12米、高近5米的汽车“巨无霸”呈现在记者眼前,给人以强烈震撼之感——这就是“磁悬浮飞轮储能应急发电车”——曾在2016年天津夏季达沃斯论坛上首次登场“亮相”。
作为高科技电力设备“代表”之一,“磁悬浮飞轮储能应急发电车”应用了全球最先进的磁悬浮飞轮储能UPS技术。使用前,在外部接入220伏电源“充电”,磁悬浮飞轮储能装置将电能转换为飞轮旋转的动能储存;在应急供电时,将飞轮动能迅速转换为电能输出。该磁悬浮飞轮储能应急发电车(500千瓦),载有两台磁飞轮储能发电机组(每组最大载荷250千瓦),与柴电应急发电车配合使用。利用该设备可以实现微秒级投切,在用户站主电源停电、切入应急发电车供电过程中,“一眨眼”的功夫就能为重要用户提供“零闪动”的低压电源,满足重大活动、特殊用户对连续、高质量供电的要求,真正做到主电源与应急电源的无缝对接。
“网军”:微网供电,智能检测

“微网供电”——在全运会这种大型活动中的保电模式,是国网天津公司首次采用。
记者在奥林匹克中心体育场看到,场外安装了12台柴油发电机,并在场内接入4台箱式变压器。据了解,全运会开幕式演艺负荷供电系统采用多电源供电方式:两路发电机组主供,互为备供;三路电网全负荷备供,构成一个“微电网”。届时,开幕式文艺演出发电机电源部分采用两个东南两个相互独立的“微电网”供电。因此这次开、闭幕式“微网供电模式”模式的实施,可对新增临时负荷直接供电,大大提高了开、闭幕式供电的可靠性。
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