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This paper proposes a new fine quick servo system that considers the saturation of voltage and current for interior permanent magnet synchronous motor (IPMSM) to achieve a stable current response to inverter voltage saturation. The proposed method gives priority to the d-axis voltage to avoid the d-axis voltage saturation. Moreover, the proposed system has a q-axis PI current controller to consider...
This paper proposes a quick and smooth speed servo system considering acceleration torque and total harmonic distortion (THD) for AC servo motor, which realizes both a quick speed response in transient state and a small value of THD in steady state. The proposed system has a new space voltage vector modulation (SVM) inverter, which is the mixed voltage limitation method of SVM. The proposed method...
This paper proposes a new switching control method of space voltage vector modulation inverter for speed servo system of induction motor. The proposed method shortens the digital control time of space voltage vector modulation inverter and improves the current control performance with wide bandwidth. Moreover, the proposed switching method is implemented by using FPGA in order to enhance its control...
This paper proposes a new switching control method of a space voltage vector modulation (SVM) inverter for a speed servo system of a vector controlled induction motor. The proposed switching control method shortens the control lag time of the SVM inverter and improves the current control characteristics of the servo system. Moreover, by using PI controllers considering the voltage saturation and the...
This paper proposes a new field-weakening control considering inverter voltage saturation for vector controlled induction motor. The proposed method improves the output torque characteristics in the field-weakening region. The effectiveness of proposed method is verified by the numerical simulation results and the experimental results
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