By Giuseppe Fusco
Adaptive Voltage keep watch over in energy structures, a self-contained mixture of idea and novel software, bargains in-depth therapy of such adaptive keep an eye on schemes. insurance strikes from power-system-modelling difficulties via illustrations of the most adaptive regulate structures, together with self-tuning, model-reference and nonlinearities reimbursement to a close description of layout equipment: Kalman filtering, parameter-identification algorithms and discrete-time controller layout are all represented. Case reviews tackle functions concerns within the implementation of adaptive voltage regulate.
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Additional resources for Adaptive Voltage Control in Power Systems: Modelling, Design and Applications (Advances in Industrial Control)
If the control input is limited due to the presence of actuator saturation, it is not possible to restore the pre-fault condition. The saturated control input leads to a wrong identiﬁcation of the power system model parameters. An eﬀective solution to this problem is to adopt the poleshifting algorithm [23, 73, 85, 96]. With the application of this algorithm, the closed-loop pole positions are selected so that they are radially in line with the position of the poles of the estimated plant and are closer to the center of the unit circle in the z-plane by a fraction ρ, where ρ is the pole-shifting factor.
10) Finally it must be noted that a complete SVS model should include the dynamic response of the power electronic apparatus, which represents the actual variation of the thyristor ﬁring angle α(t) in response to variation of the SVS input command u(t). 11) where capital letters always represent the L-transformation of time-varying signals. 3 Active and Hybrid Shunt Filters Active shunt ﬁlters (ASFs) belong to the general category of active power quality conditioners, which include series and shunt active devices .
15) where D δ(tc,k ) is a pulse. It can be easily recognized that v0,1 (tc,k ) is a step function. v0,1 (tc,k ) u(tc,k ) z −d B(z −1 ) A(z −1 ) + v1 (tc,k ) Fig. 8. 16) where −1 −nB + B + (z −1 ) = 1 + b+ + . . + b+ nB + z 1 z −1 −nB − B − (z −1 ) = b0 + b− + . . + b− nB − z 1 z and nB = nB + + nB − . Usually it is realistic to assume nB − = 0, except for some speciﬁc cases, such as voltage regulation at midpoint of a long transmission line , which yield to a nonminimum phase model (nB − = 0).
Adaptive Voltage Control in Power Systems: Modelling, Design and Applications (Advances in Industrial Control) by Giuseppe Fusco