Novel sensorless direct power and torque control of space vector modulated ac/dc/ac converter

A novel control strategy for PWM rectifier-inverter system is proposed. Fast controls strategies such as line voltage sensorless virtual flux (VF) based direct power-control with space vector modulator (DPC-SVM) for rectifier and direct torque control with space vector modulator (DTC-SVM) for inverter side are used. These strategies lead to good dynamic and static behaviour of the proposed control system- direct power and torque control- space vector modulated (DPT-SVM). The results obtained in simulations and experiment show good performance of the proposed system. Additional power loop from motor to PWM rectifier side improved dynamic behaviors of the power flow control. As result, better input-output energy matching allows decreasing the size of the dc-link capacitor.

[1]  J. Holtz,et al.  Pulsewidth modulation for electronic power conversion , 1994, Proc. IEEE.

[2]  Toshihiko Noguchi,et al.  A New Quick-Response and High-Efficiency Control Strategy of an Induction Motor , 1986, IEEE Transactions on Industry Applications.

[3]  Jinhwan Jung,et al.  A feedback linearizing control scheme for a PWM converter-inverter having a very small DC-link capacitor , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[4]  Tokuo Ohnishi,et al.  Three phase PWM converter/inverter by means of instantaneous active and reactive power control , 1991, Proceedings IECON '91: 1991 International Conference on Industrial Electronics, Control and Instrumentation.

[5]  Namho Hur,et al.  A fast dynamic DC-link power-balancing scheme for a PWM converter-inverter system , 2001, IEEE Trans. Ind. Electron..

[6]  Sanjib Kumar Panda,et al.  Space-vector based, constant frequency, direct torque control and dead beat stator flux control of AC machines , 2001, IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243).

[7]  Mariusz Malinowski,et al.  Simple Direct Power Control of Three-Phase PWM Rectifier Using Space Vector Modulation – A Comparative Study , 2003 .

[8]  Sam G. Parler,et al.  Deriving Life Multipliers for Electrolytic Capacitors , 2004 .

[9]  M.P. Kazmierkowski,et al.  Direct torque control of permanent magnet synchronous motor (PMSM) using space vector modulation (DTC-SVM)-simulation and experimental results , 2002, IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02.

[10]  Francesco Profumo,et al.  Performance comparison of output power estimators used in AC/DC/AC converters , 1994, Proceedings of IECON'94 - 20th Annual Conference of IEEE Industrial Electronics.

[11]  H. Tajima,et al.  Speed sensorless field orientation control of the induction machine , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

[12]  S. Sul,et al.  New control scheme for AC-DC-AC converter without DC link electrolytic capacitor , 1993, Proceedings of IEEE Power Electronics Specialist Conference - PESC '93.

[13]  Paolo Tenti,et al.  AC/DC/AC PWM converter with reduced energy storage in the DC link , 1995 .

[14]  Toshihiko Noguchi,et al.  Direct power control of PWM converter without power source voltage sensors , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[15]  Sheng-Nian Yeh,et al.  A novel instantaneous power control strategy and analytic model for integrated rectifier/inverter systems , 2000 .

[16]  Thomas G. Habetler,et al.  A space vector-based rectifier regulator for AC/DC/AC converters , 1993 .