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In condition of there is not rotor position detection method for full speed in the study of PMSM sensorless control, this paper tries a kind of compound algorithm by dividing the high speed and low speed into different section, to inject high frequency in low speed, detect the current signal and get the rotor position. The sliding mode observer designed in high speed to detect BEMF and get the rotor...
High-speed T/R converter is developed in this paper by using the combination of the circulator, the limiter and the RF switch technology. The super low noise receiving technology is realized through reducing the transmission loss and improving the gain of LNA. Experiments have proved that the T/R component's power tolerance in this paper is more than 100 W, and that the blind distance caused by it...
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