By Jacek Kabziński
This contributed quantity is written through key experts operating in multidisciplinary fields in electric engineering, linking keep an eye on thought, energy electronics, synthetic neural networks, embedded controllers and sign processing. The authors of every bankruptcy file the cutting-edge of some of the subject matters addressed and current result of their very own study, laboratory experiments and winning purposes. The provided suggestions be aware of 3 major components of interest:
· movement regulate in advanced electromechanical platforms, together with sensorless control;
· fault prognosis and fault tolerant keep watch over of electrical drives;
· new keep watch over algorithms for strength electronics converters.
The chapters and the total publication own robust monograph attributes. very important sensible and theoretical difficulties are deeply and properly offered at the history of an exhaustive state-of the artwork overview. Many effects are thoroughly new and have been by no means released earlier than. famous keep watch over equipment like box orientated regulate (FOC) or direct torque regulate (DTC) are referred as a kick off point for transformations or are used for comparability. between various keep an eye on theories used to resolve specific difficulties are: nonlinear regulate, strong keep an eye on, adaptive regulate, Lyapunov options, observer layout, version predictive keep watch over, neural keep watch over, sliding mode regulate, 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
BLF with x and v constr. 5 4 3 0 1 2 3 time [s] 4 5 6 7 8 9 time [s] b 1 multiplied by 39) Fig. 9 Control i and estimate of parameter m (the ﬁrst component of A 12 10 QLF BLF with x constr. BLF with x and v constr. 9 10 8 7 6 B est. A est. 8 6 4 4 3 2 0 5 2 QLF BLF with x constr. BLF with x and v constr. 0 1 2 3 4 5 time [s] 6 7 8 1 9 0 0 1 2 3 4 5 6 7 8 9 time [s] b 1 multiplied Fig. 10 Estimates of load parameters A, B (the second and the third component of A by 39) error of quantization during any digital measurement of an analogous signal, measurement noise and outliers are present in any real drive.
The barrier Lyapunov functions approach is applied to assure the preservation of constraints in any condition. The system’s performance is examined for three methods of controller design based on: quadratic Lyapunov functions; on barrier Lyapunov functions if only position constraints are imposed; and on barrier Lyapunov functions if both position and velocity constraints are present. The tuning rules are discussed and several experiments demonstrating features of the proposed control and the influence of the parameters are presented.
63. Taking into account the power invariance transformation of variables provides the value of rated phase amplitude equal to 1. The transient shown in Figs. 5 and 6 consists of consecutive starting, short time without load and ﬁnal interval of work with load. The transient of load torque is shown in Fig. 5. In the simulation investigation at ﬁrst the machine is excited with the speed near zero. 32 and after time less than 50 ms this variable is stabilized. 8. The fluxes ψrα(1) and ψrα(2) are synchronized as can be seen in Fig.
Advanced Control of Electrical Drives and Power Electronic Converters by Jacek Kabziński