Modified scheme of predictive torque control for three-phase four-switch inverter-fed motor drive with adaptive DC-link voltage imbalance suppression

• Autorzy: Sobański P.

Identyfikatory

DOI

10.5277/PED170208

• Języki publikacji: EN

Abstrakty

EN

Classical voltage space vector modulation techniques cannot be efficiently applied in four-switch three-phase voltage inverter-fed electrical drives due to a voltage offset in DC-link capacitors. The capacitor voltages imbalance is a result of a bidirectional current which flows in a phase of an electric motor that is connected to a DC-link capacitor midpoint. To overcome this problem which leads to an incorrect inverter voltage modulation or even can affect the DC-link capacitors, predictive control algorithms considering the voltage offset in DC-link capacitors have been developed. Despite the predictive methods are highly effective, they require to adjust the cost function weighting factors which is normally an inexplicit task. In this paper, an on-line tuning method of the weighting factor related to the capacitor voltages imbalance incorporated in the cost function of the predictive algorithm has been proposed. According to the proposed approach, the weighting factor is self-adjusted so that the DC-link capacitor voltages are stabilized as well as a high quality of the drive control is remained simultaneously, regardless of its operating point. The proposed strategy has been validated by using simulation model of the induction motor drive system.

Słowa kluczowe

EN

fault tolerant systems; semiconductor faults; four switch inverter; predictive control; cost function; variable speed drives

• Wydawca: De Gruyter
• Czasopismo: Power Electronics and Drives
• Rocznik: 2017
• Tom: Vol. 2 (37), No. 2
• Strony: 93--101
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Sobański P.

• Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Bibliografia

• [1] MENDES A.M.S., CARDOSO A.J.M., Fault-tolerant operating strategies applied to three-phase induction-motor drives, IEEE Transactions on Industrial Electronics, 2006, 53(6), 1807-1817.
• [2] FREIRE N.M.A., CARDOSO A.J.M., A fault-tolerant direct controlled PMSG drive for wind energy conversion systems, IEEE Trans. Ind. Electron., 2014, 61(2), 821-834.
• [3] SOBANSKI P., ORLOWSKA-KOWALSKA T., Analysis of space vector modulation technique in inverter-fed fault-tolerant induction motor drive, IEEE Int. Conf. Power Electronics and Motion Control, PEMC 2014, Turkey, on CD.
• [4] KAZEMLOU S., ZOLGHADRI M.L., Direct torque control of four-switch three phase inverter fed induction motor using a modified SVM to compensate dc-link voltage imbalance, IEEE Int. Conf. Power Electronics and Motion Control, PEMC 2014, Turkey, on CD.
• [5] ZHIJIAN J., XU Z., FENG PING W., An improved development of four-switch low cost inverter on voltage equilibrium with magnetic flux control method, IEEE Int. Conf. Electric Power and Energy Conversion Systems, EPECS 2009, United Arab Emirates, on CD.
• [6] HONG HEE L., PHAN QUOC K., LE DINH K., LE MINH P., Dynamic adaptive space vector PWM for four switch three phase inverter fed induction motor with compensation of DC-link voltage ripple, IEEE Int. Conf. Power Electronics and Drive Systems PEDS 2009, Taiwan, on CD.
• [7] GOVIC G.A., PETERS G.L., DC link imbalance compensation in four-switch inverter AC motor drives, IET Electronics Letters, 1997, 33(13), 1101-1102.
• [8] GI-TAEK K., LIPO T.A., VSI-PWM rectifier/inverter system with a reduced switch count, IEEE Trans. Ind. Appl., 1996, 32(6, 1331-1337.
• [9] BLAABJERG F., NEACSU D.O., PEDERSEN J.K., Adaptive SVM to compensate DC-link voltage ripple for fourswitch three-phase voltage-source inverters, IEEE Trans. Power Electron., 1999, 14(4), 743-752.
• [10] DEHONG Z., JIN Z., YANG L., Predictive torque control scheme for three-phase four-switch inverter-fed induction motor drives with DC-link voltages offset suppression, IEEE Trans. Power Electron., 2015, 30(6), 3309-3318.
• [11] SOBANSKI P., ORLOWSKA-KOWALSKA T., Predictive flux and torque control of induction motor drive under post-fault operation of three-phase voltage inverter, Scientific Works of the Institute of Electrical Machines, Drives and Measurements of the Wroclaw University of Technology, 74, Ser. Studies and Materials, 2014, 34, 1-16 (in Polish).
• [12] SOBANSKI P., ORLOWSKA-KOWALSKA T., Predictive flux and torque control of induction motor drive under post-fault operation of three-phase voltage inverter, IEEE Int. Conf. Industrial Technology, ICIT 2015, Sevilla, Spain, on CD.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).