In this thesis, a slid frequency vector control system and a speed sensorless vector control system based on reactive power are investigated and analyzed.
本文研究分析了转差频率型矢量控制和基于无功功率的无速度传感器矢量控制。
When the extrusion temperature was increased, the pressure vibration frequency and critical slid length decreased, while the vibration period increased.
挤出温度升高，压力振荡频率减小，周期变大，外推滑移长度有变小趋势。
When the extrusion temperature was increased, the pressure vibration frequency and critical slid length decreased, while the vibration period increased.
挤出温度升高，压力振荡频率减小，周期变大，外推滑移长度有变小趋势。
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