20.500.12556/DKUM-9351 Vodenje sinhronskega stroja s trajnimi magneti brez merilnika položaja z upoštevanjem različnih induktivnosti v oseh d in q ter uporabo optimizacije : magistrsko delo Realization of permanent magnet synchronous motor sensorless control with considered different inductances in the d- and q-axis based on optimization procedure V delu je predstavljena na uporabi optimizacijske metode temelječa izvedba vodenja sinhronskega stroja s trajnimi magneti (SSTM) brez merilnika položaja.Uporabljen je močno poenostavljen dvoosni magnetno nelinearni matematični model SSTM v katerem so upoštevane različne in spremenljive vrednosti induktivnosti v oseh d in q. Za vodenje je uporabljen princip vektorske regulacije v orientaciji polja trajnega magneta. Predstavljeni so postopki določanja parametrov dvoosnega nelinearnega modela sinhronskega stroja s trajnimi magneti, ki je opisan z napetostnima enačbama in enačbo gibanja. Opisani so postopki določanja parametrov regulatorjev toka, regulatorja hitrosti in parametrov nelinearnega opazovalnika. Pri določitvi slednjih je kot optimizacijska metoda uporabljena direktna naključna iskalna metoda diferenčne evolucije, ki spada med evolucijske strategije. Opazovalnik je zasnovan na razliki med merjenima in z opazovalnikom izračunanima tokoma SSTM. Brezsenzorsko vodenje je izvedeno z vključitvijo opazovalnika v strukturo vektorskega vodenja. Delovanje predlaganega brezsenzorskega vodenja sinhronskega motorja s trajnimi magneti je potrjeno z eksperimentalnimi rezultati. Pri tem je podana primerjava izmerjenih in z nelinearnim opazovalnikom izračunanih časovnih potekov položaja rotorja pri različnih hitrostih. This work presents realization of a closed-loop permanent magnet synchronous motor (PMSM) sensorless control based on an optimization procedure. A simplified magnetically nonlinear two-axis dynamic model of PMSM with different and variable inductances in the d- and q-axis is used for design of a permanent magnet flux linkage vector oriented speed vector control. Procedures applied for determining parameters of the magnetically nonlinear two-axis dynamic PMSM are presented together with procedures applied for determining parameters of current and speed controllers as well as parameter of a nonlinear-state observer. A direct stochastic search algorithm called differential evolution is applied, together with the nonlinear models of the PMSM, its nonlinear state-observer and closed-loop sensorless control, in order to determine parameters of nonlinear state-observer. The state-observer is designed on the error between measured and by the state-observer estimated values of the state-variables. The sensorless control is achieved by inclusion of the state-observer in the closed loop speed vector control of the PMSM. The obtained closed-loop sensorless control is confirmed by the experiments performed with an appropriate experimental set-up. The measured and observer estimated rotor positions are compared at different rotor speeds. sinhronski stroji s trajnimi magneti magnetne nelinearnosti dinamični model brezsenzorsko vodenje optimizacija permanent magnet synchronous motor magnetic nonlinearities dynamic model sensorless control optimization true true false V. Pečar Slovenski jezik Angleški jezik Magistrsko delo 2008-12-01 13:14:21 2008-12-01 13:14:21 2022-12-14 10:02:47 2022-12-15 03:11:03 2008 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.313.077.7 12828182 URN:SI:UM:DK:PJDNE1QJ MAG_Pecar_Vincenc_i2008.pdf MAG_Pecar_Vincenc_i2008.pdf 1 C3D8520AC7DA1B9A5ABF88252E1C110C 26400a691196a686ff82a3ebb94f94b2eea66e721feee7f7beb394db5f9800ec 7db9b59d-7c02-11eb-bb7a-00155d0001ca 20.500.12556/dkum/c297e8a2-3a3d-4aee-9983-f8b47c88b27e https://dk.um.si/Dokument.php?lang=slv&id=6746 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0