Problems with the acceleration and deceleration of the turbine?
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The turbines in our company are used to drive synthetic compressors. Recently, due to unstable gas flow in the previous processing stage, we have been using speed control to regulate the load. I would like to ask whether industrial small turbines can adjust their speed frequently within their automatic control range, and what effects frequent speed changes have on the units
Speed can be increased or decreased as long as no flutter occurs; if that is not desired, the anti-flutter control valve should be opened frequently.
As long as the compressor’s operating point is kept outside the surge line with an appropriate margin, and sufficient steam supply is available, it is possible to consider using speed control to adjust the compressor load; however, the speed should be reduced gradually, while paying attention to the position of the compressor’s operating point.
In practical operation, the compressor’s operating point is far from the anti-surge line and has an appropriate margin; when there is sufficient steam supply, it is possible to adjust the compressor load by changing its speed. During the speed reduction process, pay attention to the operating point of the compressor; it’s sufficient to proceed slowly.