Adaptive Voltage Control in Power Systems: Modeling, Design by Giuseppe Fusco

By Giuseppe Fusco

Power caliber is a urgent difficulty in electrical strength structures. one of many major specifications of strength caliber administration is the warrantly of a sinusoidal voltage waveform with sufficient amplitude at every one node of the community. The fulfilment of the sort of keep an eye on goal is facilitated by way of adaptive platforms that could account for unpredictable fluctuations in working conditions.

Adaptive Voltage regulate in energy Systems, a self-contained combination of conception and novel software, is an in-depth therapy of such adaptive keep watch over schemes. The reader strikes from power-system-modelling difficulties via illustrations of the most adaptive regulate platforms (self-tuning, model-reference and nonlinearities repayment) to a close description of layout tools: Kalman filtering, parameter-identification algorithms and discrete-time controller layout are all represented. Case stories tackle purposes matters within the implementation of adaptive voltage control.

Practicing engineers and researchers in strength structures and keep watch over engineering will locate this monograph, written via representatives of every box, to be a necessary synthesis of either whereas its obtainable sort also will entice graduate students.

Advances in business Control goals to document and inspire the move of know-how up to the mark engineering. The speedy improvement of regulate know-how has an influence on all parts of the keep an eye on self-discipline. The sequence deals a chance for researchers to give a longer exposition of recent paintings in all points of commercial control.

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Additional info for Adaptive Voltage Control in Power Systems: Modeling, Design and Applications

Example text

On the other hand, when considering the voltage/reactive power control problem, the effect of local nodal voltage controller actions on local variables and their interaction through the power-flow balance equations is often weak enough to be neglected. From previous considerations, in the case of local nodal voltage amplitude control at fundamental and harmonic frequencies, power system steady-state models in the frequency domain [30,76] are usually adopted, such as those represented by a simple short-circuit impedance or by the Thevenin equivalent circuit as seen from the controlled bus.

Nh , the Cartesian to polar coordinates transformation: ch (t) = c2h,r (t) + c2h,i (t) χh (t) = tan−1 ch,i (t) ch,r (t) 28 3 Voltage and Current Phasor Identification It should be noted that the choice of time reference, that is of the time instant t = 0, determines the coordinates reference in both Cartesian and polar notation. If different signals have to be analyzed and their phasors compared or used in the same model, the reference choice is arbitrary provided that it is synchronized among all the signals.

39) after nA − 1 steps. 39), one obtains that such a sum is equal to zero. Then, in the ideal case, the control input is able to cancel the constant bias at the output. However, in real applications, the effectiveness of the compensation action of the disturbance term is strictly related to the estimate accuracy of v0,1 . 2. Since the variables of the simulated power system are initialized far from their steady-state values, the first 3 s of simulation are not significant because they do not represent actual system operation.

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Adaptive Voltage Control in Power Systems: Modeling, Design by Giuseppe Fusco
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