PERMANENT MAGNET SYNCHRONOUS MOTOR CONTROL APPARATUS AND METHOD BASED ON SLIDING MODE OBSERVER AND CURRENT PREDICTION

The present disclosure discloses a Permanent Magnet Synchronous Motor (PMSM) control method based on a sliding mode observer and current prediction. The method includes the following steps: acquiring a rotating speed and a position angle of a PMSM; acquiring a current of the PMSM, and acquiring two-...

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Hauptverfasser:	QIWEI XIA, XIAOHUA LI, ZHONG LIAO, LEI CHEN, MINGYANG LV, ZHAOHUA LIU
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The present disclosure discloses a Permanent Magnet Synchronous Motor (PMSM) control method based on a sliding mode observer and current prediction. The method includes the following steps: acquiring a rotating speed and a position angle of a PMSM; acquiring a current of the PMSM, and acquiring two-phase currents, a d-axis voltage, and za q-axis voltage ll} a rotating coordinate system; establishing a motor feedforward disturbance compensation module to obtain a dfaxis voltage disturbance quantity and a q- axis voltage disturbance guantity; establishing a sliding" mode- Luenberger observation. module to obtain. a d-axis current observation value, a q-axis current observation value, and a permanent magnet flux linkage equation; establishing a dead beat current prediction module to obtain a d-axis reference voltage and a q-axis reference voltage; and obtaining a voltage in a two-phase static coordinate system to generate a switching pulse signal to drive the PMSM to operate.