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首页> 外文期刊>Engineering - South Wales: Proceeding of the South Wales Institute of Engineers >Estimating rotor unbalance from a single run-down: a new technique for power station maintenance
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Estimating rotor unbalance from a single run-down: a new technique for power station maintenance

机译：通过一次停机估算转子不平衡：电站维护的新技术

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摘要

A novel method to determine the state of unbalance of a rotating machine is both presented and verified experimentally in this paper. This method allows the system to be balanced from a single run-down, which has obvious advantages for field balancing. In addition to unbalance excitation, the method also identifies the parameters of the machine's elastic support structure, which is a major consideration for the analysis of power station turbogenerators. The identification method is first presented, followed by the results obtained from an experimental rotor rig. A demanding set of experiments was performed, and excellent results were achieved for both unbalance and support parameter identification. Using this single-shot balancing technique, vibration levels were successfully reduced by over ninety percent. This method could provide considerable cost-saving benefits and reduce downtime in power stations.
机译：本文提出了一种确定旋转机械不平衡状态的新方法，并进行了实验验证。这种方法使系统可以从一次停机中进行平衡，这对于现场平衡具有明显的优势。除了不平衡激励外，该方法还可以识别机器的弹性支撑结构的参数，这是分析电站涡轮发电机的主要考虑因素。首先介绍了识别方法，然后介绍了从实验转子装置获得的结果。进行了一组苛刻的实验，并且在失衡和辅助参数识别方面均获得了出色的结果。使用这种单发平衡技术，振动水平成功降低了百分之九十以上。这种方法可以提供可观的节省成本的好处，并减少发电站的停机时间。

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