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一、前言上海汽轮机厂生产中间再热汽轮机,至今已有十余年,除作为中间试验机组的再热5万千瓦汽轮机于1966年只生产一台外,再热12.5万千瓦汽轮机已生产了39台,再热30万千瓦汽轮机也生产了多台,运行、安装及科研等单位也掌握了丰富的经验,对机组的性能和存在的问题作了不少试验和研究,就调节系统而言,比较集中地反映了一个“晃动”问题,这是一个比较复杂的问题,它涉及到设计制造,安装运行和维修保养等各个方面。而就晃动的现象来说,有同步的和异步的,高频的和低频
I. INTRODUCTION Shanghai Steam Turbine Plant produces intermediate reheat steam turbines for more than ten years. In addition to producing only one reheating steam turbine of 50,000 kilowatts as an intermediate test unit in 1966, the reheating steam turbine of 125,000 kilowatts has produced 39 Taiwan, reheating 300,000 kilowatts steam turbine has also produced more than one unit, operation, installation and scientific research units also have a wealth of experience, the performance of the unit and the existing problems made a lot of tests and research on the regulation system, More concentrated reflection of a “shaking” problem, which is a more complex issue, which involves the design and manufacture, installation and maintenance and other aspects. As for the phenomenon of shaking, there are synchronous and asynchronous, high frequency and low frequency