By Jacek Kabziński
This contributed quantity is written by means of key experts operating in multidisciplinary fields in electric engineering, linking keep watch over conception, strength electronics, synthetic neural networks, embedded controllers and sign processing. The authors of every bankruptcy record the state-of-the-art of a few of the subject matters addressed and current result of their very own study, laboratory experiments and profitable purposes. The provided ideas be aware of 3 major components of interest:
· movement regulate in complicated electromechanical structures, together with sensorless control;
· fault analysis and fault tolerant keep watch over of electrical drives;
· new keep watch over algorithms for energy electronics converters.
The chapters and the whole e-book own robust monograph attributes. vital functional and theoretical difficulties are deeply and appropriately provided at the historical past of an exhaustive state-of the artwork evaluate. Many effects are thoroughly new and have been by no means released ahead of. famous regulate tools like box orientated keep watch over (FOC) or direct torque keep an eye on (DTC) are referred as a place to begin for differences or are used for comparability. between various keep an eye on theories used to resolve specific difficulties are: nonlinear keep an eye on, strong regulate, adaptive keep an eye on, Lyapunov strategies, observer layout, version predictive keep watch over, neural regulate, sliding mode keep watch over, sign filtration and processing, fault analysis, and fault tolerant control.
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Extra info for Advanced Control of Electrical Drives and Power Electronic Converters
15. 63 which is rated value. This means that the rotor flux is reduced in the phase system and do not 24 Fig. 5 Transients of the speed and the electromagnetic variables during starting and loading of machine Z. 5 Time (s) exceeds the rated value. The rotor flux is always kept on the value which assures operation of the machine in an unsaturated region. As it can be seen in the last chart of Fig. 6 the third harmonic of the stator current appearing in the second plane has a different angle in relation to the fundamental in consecutive time intervals.
In: Proceedings of the IEEE 16th annual applied power electronics conference and exposition, 4–8 Mar 2001, Vol 1, pp 392–398 5. Imecs M, Kelemen A (1995) Comparison between multiphase servo drives using the polyphase space-phasor theory. In: Proceedings of PCIM’95, Nurnberg 6. Zheng L, Fletcher JE, Williams BW, He X (2008) Dual-plane vector control of a ﬁve-phase induction machine for an improved flux pattern. IEEE Trans Ind Electron 55(5):1996–2005 7. Krzeminski Z (1987) Nonlinear control of induction motor.
Synchronization of harmonics differs for each kind of multiscalar model. The angular velocity of the rotor flux expressed in terms of multiscalar variables is as follows: xwrðnÞ ¼ xrðnÞ þ RrðnÞ LmðnÞ x12ðnÞ : LrðnÞ x21ðnÞ ð85Þ q11r q12r (-) (ωψr) q 11 (ωψ) q21r (-) q21 m1 (-) q12 q22r m2 (-) q22 u1 Decoupling Fig. 3 Control system for variables of the virtual machine u2 Voltage caculation The angular velocity of the rotor flux vector depends on the value of the variable x12ðnÞ which is proportional to the torque of the virtual machine.
Advanced Control of Electrical Drives and Power Electronic Converters by Jacek Kabziński