Uncertainty and Disturbance Estimator-Based Controller Equipped With a Time-Delayed Filter to Improve the Voltage Quality of Inverters

Gadelovits, Shlomo; Zhong, Qing-Chang; Kadirkamanathan, Visakan; Kuperman, Alon

doi:10.1109/tie.2018.2831182

Cited by 19 publications

(21 citation statements)

References 61 publications

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“…The condition imposed by Assumption 3 is also satisfied by many engineering systems, e.g. stepper motor [Defoort et al (2009), Assumption 1], DC/AC power inverter [Gadelovits et al (2019), Eq. (2)], hydraulic actuators [Ruderman et al (2019), Eq.…”

Section: Synchronization Control Designmentioning

confidence: 99%

Output global oscillatory synchronisation of heterogeneous systems

Ahmed

Ushirobira

Efimov

et al. 2019

International Journal of Control

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The global output synchronization problem for heterogeneous nonlinear systems having relative degree 2 or higher is studied. The proposed approach consists in two steps. First, a partial projection of individual subsystems into the Brockett oscillators is performed using a sliding-mode control. Second, the network of these oscillators is synchronized using the global synchronization results of a particular second order nonlinear oscillator model from . Our approach is based on output feedback and uses a higher order sliding mode observer to estimate the states and perturbations of the synchronized nonlinear systems. Along with numerical simulations, the performance of the proposed synchronization scheme is experimentally verified on a network of Van der Pol oscillators.

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Section: Synchronization Control Designmentioning

confidence: 99%

Output global oscillatory synchronisation of heterogeneous systems

Ahmed

Ushirobira

Efimov

et al. 2019

International Journal of Control

View full text Add to dashboard Cite

show abstract

“…On the other hand, output voltage reference is of the form (3). A cascaded dual-loop control structure is utilized (similarly to [22], [24]). Inductor current dynamics is given by Fig.…”

Section: B Tracking Controllermentioning

confidence: 99%

“…There, UDE controller equipped with a multi-band-stop-filter (MBS) was utilized to tackle the challenge of inverter output voltage quality enhancement. In [23], UDE controller equipped with a time-delayed-filter (TD) was proposed to improve its ability to approximate and eliminate signals characterized by periodic behavior and applied in [24] to single-phase inverter output voltage quality enhancement. Performance comparison between systems based on the two filters above under similar operating conditions indicated the superiority of TD in terms of both output voltage THD and settling time and the supremacy of MBS in terms of robustness to fundamental frequency variations.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, this paper mainly aims to improve the performance of UDE based controller equipped with a time-delayed-filter in terms of robustness to fundamental frequency variations by increasing the number of delays in the time-delayed-filter, i.e. utilizing a multipletime-delayed filter (MTD) rather than single-time-delayed filter, employed in [23] and [24].…”

Section: Introductionmentioning

confidence: 99%

“…Since the LUD in (6) contain odd harmonics only, then 0 ( ) 15with ∆T denoting the delay of Q(s) at 0 [23]. The resulting Gf1(s) is referred to as time-delayed filter in [24]. Within the pass band of Q(s),…”

Section: Introductionmentioning

confidence: 99%

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