№73-24
Synthesis of load moment observerasynchronous electric drive with vector control
O. Sadovoi1, О. Kliuiev2, Yu. Sokhina2
1Dnipro University of Technology, Dnipro, Ukraine
2Dniprovsky State Technical University, Kamianske , Ukraine
Coll.res.pap.nat.min.univ. 2023, 73:265-277
https://doi.org/10.33271/crpnmu/73.265
Full text (PDF)
ABSTRACT
Purpose. The energy characteristics of asynchronous electric drives in steady-state operation are functions of three variables: the angular speed rotation of the rotor, the module of the vector flux coupling of the rotor and the moment load. The moment of load is an external disturbing influence, effective methods of its measurement are not available. Therefore, the purpose of this paper is to mathematically describe the observer of the state variables of the active power channel and the load moment on the shaft of an asynchronous electric drive with vector control.
Methodology. To achieve the purpose of the work, the method of synthesis modal observers is applied using the field-oriented model of the asynchronous machine with the decomposition of its equations and taking into account the nonlinearities of cross-connections between the control channels.
Results. As part of the relay-vector control system, a modal observer of the load moment is synthesized, the information from the output of which can be used to build algorithms for extreme control of an asynchronous electric drive. The asymptotic stability is proved by the method of mathematical modeling and is sufficient the accuracy of the observer of the load moment at different distributions of the roots its characteristic equation.
Scientific novelty. Thepaper solves the actual scientific problem of establishing the regularities of the structural-algorithmic synthesis and tuning of the modal observer of the moment of load on the shaft of an asynchronous electric drive. Identification of the moment load on the shaft of an electric machine will allow to improve the quality indicators of extreme control systems of asynchronous electric drives.
Practical significance. The obtained equations of the observer determine the load moment identification algorithm, the information about which can be used in two-channel vector control systems for asynchronous electric drives to build an external extreme control circuit, which improves the energy performance of the asynchronous machine. First of all, we are talking about minimizing the loss of active power or the consumption of reactive power an asynchronous machine when the load moment on its shaft changes.
Keywords: asynchronous machine, vector control, modal observer of load moment, asymptotic stability, distribution of polynomial roots.
References
1. Klyuev, O.V., & Sadovoi, A.V. (2011). Energeticheskie kharakteristiki asinkhronnogo elektroprivoda s dvukhkanalnoi sistemoi upravleniya. Zbirnyk naukovykh prats Dniprodzerzhynskoho derzhavnoho tekhnichnoho universytetu, 2(17), 174–181.
2. Kliuiev, O. V., Sadovoi, O. V., & Sokhina, Yu. V. (2018). Systemy keruvannia asynkhronnymy ventylnymy kaskadamy: monohrafiia. Kam’ianske.
3. Sadovoi, A.V., Klyuyev, O. V., Sokhina, Yu. V.,&Filin, I.V. (2020).Information system of minimization consumption reactive power in asynchronous electric drive with vector control. Applied aspects of information technology, 3(2), 74–84.
https://doi.org/10.15276/aait.02.2020.5
4. Choi, S.H., Ko, J.S., Kim, I.D., Park, J.S.,&Hong, S.C.(2005). Precise position control using a PMSM with a disturbance observer containing a system parameter compensator. IEEE Proceedings on Electric Power Applications, 152(6), 1573–1577.
https://doi.org/10.1049/ip-epa:20045200
5. Hamida, M.A., De Leon, J., Glumineau, A., & Boisliveau, R. (2013). An Adaptive Interconnected Observer for Sensorless Control of PM Synchronous Motors with Online Parameter Identification. IEEE Transactions on Industrial Electronics, 60(2), 739–748.
https://doi.org/10.1109/tie.2012.2206355
6. Liu, T.H., Pu, H.T., & Lin, C.K. (2010). Implementation of an adaptive position control system of a permanent-magnet synchronous motor and its application. Electric Power Applications, IET,4(2),121–130.
https://doi.org/10.1049/iet-epa.2009.0036
7. Jouili, M., Jarray, K., Koubaa,Y., & Boussak, M. (2012). Luenberger state observer for speed sensorless ISFOC induction motor drives. Electric Power Systems Research, 89, 139–147.
https://doi.org/10.1016/j.epsr. 2012.02.014.
8.Alonge, F., D׳Ippolito, F., Fagiolini, A., & Sferlazza, A. (2014). Extended complex Kalman filter for sensorless control of an induction motor. Control Engineering Practice, 27, 1–10.
https://doi.org/10.1016/j.conengprac.2014.02.007.
9. Chin-Chih, O., Chun-Jung, C., & Tien-Chi, C. (2010). Modelling and design a power assisted wheelchair used torque observer. International Symposium Computer Communication Control and Automation, 2, 63–66.
https://doi.org/10.1109/3ca.2010.5533763
10. Ki-Hong, P., Tae-Sung, K., Sung-Chan, A., & Dong-seok, H. (2003). Speed control of high-performance brushless DC motor drives by load torque estimation. IEEE 34th Annual Power Electronics Specialist Conference. 4, 1677–1681.
https://doi.org/10.1109/pesc.2003.1217709
11. Lee, K., Choy, I.,& Back, J. (2011). Disturbance observer based sensorless speed controller for PMSM with improved robustness against load torque variation. IEEE 8th International Conference Power Electronics and ECCE Asia (ICPE & ECCE), 2537–2543.
https://doi.org/10.1109/icpe.2011.5944734.
12. Tolochko, O.I., Chekavskyi, H.S., Rozkariaka, P.I., & Zhurov, I.O. (2013). Sproshcheni sposterihachi dlia vidnovlennia statychnoi ta dynamichnoi skladovykh elektromahnitnoho momentu asynkhronnoho dvyhuna v systemakh chastotno-rehulovanoho elektropryvoda. Visnyk Natsionalnoho tekhnichnoho universytetu «Kharkivskyi politekhnichnyi instytut». Zbirnyk naukovykh prats. Seriia: Problemy avtomatyzovanoho elektropryvodu. Teoriia i praktyka, 36 (1009), 75–79.
13. Lu,W., Zhang, Z., & Wang, D. (2019). A new load torque identification sliding mode observer for permanent magnet synchronous machine drive system. IEEE Transaction on Power Electronics,34(8),7852-7862.
https://doi.org/10.1109/TPEL.2018.2881217
14. Guzinski, J., Diguet, M., Krzeminski, Z., & Lewicki, A. (2010). Speed and load torque observer application in high-speed train electric drive. IEEE Transaction on Industrial Electronics. 57(2), 565-574.
https://doi.org/10.1109/TIE.2009.2029582
15. Popovych, M.H., Lozynskyi, O.Yu., & Klepikov, V.B. (2005). Elektromekhanichni systemy avtomatychnoho keruvannia ta elektropryvody: Navchalnyi posibnyk. Kyiv.
