风力涡轮机的不同结构部分会振荡,移动或振动。塔,叶片,机舱,主轴承变速箱是其中的一些主要部件监控很重要。如果这些分量振荡,振动太大,或者如果它们松动并产生大
它可以危及风力发电机或造成严重的冲击损害。因此,监视这些组件是一艰巨的任务风力发电机安全链的重要组成部分。的PCH1026振动监测器是专门研制的完成了这项任务,并获得了德国劳埃德船级社的认证根据2010年指南第2.3.2.7和2.3.2.8章并按ISO功能安全标准评定13849-1作为PL= d额定元件。
设计
对pch1026型监测仪进行了详细的设计
与全球领先的风力涡轮机制造商合作。监视器具有12个同时操作的过滤带,内部和外部传感器,并已根据各种调整要求。基于这些知识的监控解决综合任务,确保最大限度保护风力发电机。
任务示例:
·监测塔,叶片和冲击振动,所有在一个监控
·监测变速箱与齿轮之间的扭力发电机包括简单齿轮啮合
·监测机舱差分振动
·通过内置跟踪塔共振频率双波段ZOOM FFT用于监测松动或水泥塔的裂缝。
·为控制器提供时间关键的“原始”数据塔阻尼回路。
·通过独立的故障安全系统确保冗余
故障和报警继电器,也操作,如果涡轮机控制器不工作
·提供对读数和配置的完整访问(参数化)通过CANopen, Modbus, Profinet, Profibus或以太网接口,和/或模拟输出把。
PCH1026 风力涡轮机
PCH工程有多年的经验设计风力涡轮机振动监测器。的关键因素是要使用高精度和精密度高的过滤器,所以你监控什么是重要的,并消除假警报。使用来自PCH工程的监视器,您可以获得最大值保护和高效率您的风力涡轮机在最危急的大风条件。不同的结构频率成分往往在频率尺度上分布非常紧密的。因此,过滤器必须具有高选择性,以便只传递感兴趣的频率分量。简单的过滤器在整个过程中都会出现问题频率范围和不会抑制结构共振在更高频率范围内的频率,尽管它们是预计。这会导致错误或过早的警报停机时间。频率响应很重要,但是还有时域响应,比如时延,相位和暂态响应是重要的参数。PCH工程有多种类型和订单的滤波器以满足频域和时域响应之间的折衷要求。高精度滤波器PCH工程的所有课程都是选择性通过的频率源于频带内感兴趣的结构分量并抑制所有非频段外有趣的频率。
智能保护系统永远值得信赖从PCH工程,从而最大化即使在最恶劣的风力下,风力涡轮机的运行时间条件。
PCH Engineering has many years of experience designing vibration monitors for wind turbines. The key factor is to use high precision and precision filters, so you monitor what is important and eliminate false alarms. Using monitors from PCH Engineering, you can get maximum protection and high efficiency for your wind turbine in the most critical wind conditions. The different structural frequency components tend to be very tightly distributed on the frequency scale. Therefore, the filter must be highly selective in order to transmit only the frequency component of interest. Simple filters will present problems throughout the frequency range and will not suppress structural resonances at frequencies in the higher frequency range, although they are expected. This can lead to errors or premature alarm downtime. The frequency response is important, but there are also time domain responses, such as time delay, phase and transient responses that are important parameters. PCH Engineering has multiple types and orders of filters to meet the tradeoff between frequency domain and time domain response. All courses in PCH Engineering are selective to pass frequencies derived from structural components of interest within the frequency band and suppress all frequencies of interest outside the frequency band.
Intelligent protection systems can always be trusted from PCH engineering, thus maximizing wind turbine operating time conditions even in the harshest winds.
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