Centrifugal compressor
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The speed of the turbine in a centrifugal compressor is determined by either the inlet flow rate of the turbine or the inlet flow rate of the compressor.
The power source (the driving force) and the load (the resistance) operate on the same principle as when riding a bicycle: you are the power source. When the output power remains constant, the resistance encountered while going uphill or downhill differs, and the speed is affected by this. As the air compressor serves as the load device, when the set pressure is fixed, it has an impact on how it changes in relation to the change when the set steam pressure of the turbine is fixed. To understand this principle, it’s easy if you set a reference point.
Determined by the inlet flow rate of the compressor
The purpose of a turbine is to drive a compressor to compress and transport gas
I think it’s due to the inlet flow rate of the turbine, because there are guide vanes at the compressor inlet that can be adjusted
The amount of flow at the compressor inlet determines the amount of turbine steam required to maintain the corresponding speed
I understand it on my own by reading the paper. If there are any mistakes, I hope my seniors will kindly offer their guidance. For compressors with a constant discharge pressure and stable rotation speed, the discharge pressure can be stabilized by adjusting the inlet flow rate using guide vanes; if pressure control cannot be achieved through such adjustments, then the speed of the turbine should be adjusted instead.