第439章 继电器的控制难题
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第439章继电器的控制难题(第1/2页)
曹建友再一次愣在原地,在脑海中迅速构建出沈永健所描述的“第三轨”模型。
“列车侧轨,利用转向架上的‘集电靴’与之滑动接触取电…”
作为电力系统及自动化的专家,本身也是宝蓉铁路电气化的负责人。
这方案提出,一番思索之下,眼睛越来越亮。
显然这方案的可行性极强。
“妙!妙啊!”
曹建友单手一拍大腿,口中激动地喃喃着。
只是对上的却是沈永健平静的面容。
“建友同志,你说的继电器问题呢?”
“要不先带我们去看看吧?”
…
“啊~!好!好啊!”
曹建友闻言,立刻收敛心中激动。
对于自己原本的另一困扰,也愈发有了期待。
进入再里头的核心区,沈永健目光便被眼前庞然大物般的控制柜阵列所吸引。
足足七八个高大的铁皮柜一字排开,柜门正由技术员动手一一敞开。
里面密密麻麻全是老式的电磁继电器、接触器和断路器。
各种粗细不一的线缆像蜘蛛网一样交织在一起,接线端子排得密不透风,看着就让人头皮发麻。
“沈委员,这就是目前设计的站台电力控制中枢。”
看着沈委员微蹙的眉头,曹建友无奈地叹了口气,指着这些柜子道。
“为了保证地铁供电的可靠性,我只能用现有的继电器逻辑控制。”
“但就像我之前说的,这些设备太庞大了,光是这一个站点的控制柜就占了半个屋子,机械触点太多,里面因为控制逻辑的接线您也能看到…”
“别说是故障率根本压不下来,就算现在理论验证阶段,每一次调整就得重新来一轮接线。”
“万一要是真的这么运行出现失误,很可能造成一系列的安全隐患…”
沈永健走上前,仔细打量着这些复杂的线路。
无数的继电器和线缆在他眼中被迅速区分着,整个主体电器网络的逻辑也由他判断着。
约莫一刻钟后,才收回视线,兀自思索起来。
目前模拟架设的这套电力控制中枢,整体逻辑思维倒是没错。
只是单靠传统继电器来实现这般复杂的逻辑,弊端也是显而易见。
大量复杂的逻辑线束,外加上这个时代的继电器的工艺与质量…
“建友同志,你的担心的确没错。”
“这么庞大复杂的线网,万一某个继电器卡死或者线圈烧毁,在这种封闭运行的空间内,引起火灾等…是致命的隐患。”
…
“是的!”
“沈委员,不光如此,实际地铁列车启动与停止频繁,加速时电流会剧烈变化,目前的继电器也很难有精细的配合。”
“另外断路器在发生短路时,也难以在几十毫秒内断开…”
“我设计到如今,已经不敢再继续下去,要是更多的功能附带更多的继电器,以及更庞大的逻辑接线,这…”
曹建友眉头紧皱,目前面临的问题,其实并非是他在理论上的困难,而是实际面临的系统性风险太大。
这套理论无法这么直接落地,隐患太大。
“所以…你考虑的是让微电子集成电路来代替这些功能?”
(本章未完,请点击下一页继续阅读)第439章继电器的控制难题(第2/2页)
…
“没错!”
“您原先对6Y1电力机车内部的控制部分进行微电子的优化处理,给了我很多想法。”
“晶闸管替换控制系统,让整辆电力机车原本复杂的关窍都通了…”
“我想着能否让微电子领域对这一系列的电力模块进行优化替代,尤其是对继电器与断路器的逻辑控制进行优化。”
曹建友最初的想法就来源于6Y1的电力机车。
要是没有对6Y1机车的研究,可能理论设计只会继续这般推进,面对这系列的系统性风险,也只能靠具体的现场工程师进行完善解决。
他被借调来只是进行理论方案设计,真正到地铁修建那一步,还得要几年。
如今有了6Y1机车改进的思路,在将部分配件微电子化后,克服了关键难题,整车效率大大提升。
这才让曹建友看到了微电子领域在控制领域的应用效果。
希望通过微电子领域的改进来克服这些系统性的安全风险。
沈永健眉头蹙起,目光不断在这大型控制柜上打量。
好半晌后,才缓缓点头道。
“建友同志,我明白你的诉求了。”
“电力系统这一块通过微电子改进想法很好,不过具体替代的方案,我还得考虑研究一段时间。”
“你目前对地铁电力系统的
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