Voltage Regulation of a Negative Output Luo Converter Using a PD-PI Type Sliding Mode Current Controller

Goudarzian, Alireza; Khosravi, Adel

doi:10.5829/ije.2019.32.02b.13

Cited by 3 publications

(6 citation statements)

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“…This eliminates the failure effect on the output voltage and the resulting voltage loop is simplified (Fig. 12) [29]- [32]. Since we used the dead-beat controller to design the controller for the internal current loop, which monitors the reference signal with the least delay, we can neglect its dynamics in the design of the voltage loop and consider this loop constant.…”

Section: B Design Of Outer Control Loop -Voltage Loopmentioning

confidence: 99%

“…We do regulator synthesis using the pole placement method described in [31], [32]. The main idea behind this method is to force the transmission of the system to the poles chosen by us to determine its dynamic behavior.…”

Section: B Design Of Outer Control Loop -Voltage Loopmentioning

confidence: 99%

“…We, therefore, compensate for this zero. Then, the control scheme changes as shown in Fig. 13 [29], [31], [32].…”

Section: B Design Of Outer Control Loop -Voltage Loopmentioning

confidence: 99%

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Combining DVR and UPS Techniques for an Uninterruptable Supply of Ultra-Sensitive Non-Linear Appliances

Dobrucký

Šedo

Konarik

2020

ELEKTRON ELEKTROTECH

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The paper deals with an application of combined techniques of dynamical voltage restorer (DVR) and uninterruptible power supply (UPS) that make possible both the short voltage sags compensation, as well as longer power supply interruptions, under the simultaneous operation of equipment and network. This is enabled mainly by an instantaneous voltage sag detection, quick bidirectional over-switches, and an instantaneous control method of the output voltage. This needs a fast control method, which can provide a voltage recovery for phase-sensitive loads during several calculation steps, so the dead-beat regulator is used. Such a system even compensates for the influence of non-linear loads on the power supply network without a change of a phase and amplitude of the supply voltage. The simulation results in Matlab/Simulink, as well as real experiments and their comparison results, are given in the paper.

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Section: B Design Of Outer Control Loop -Voltage Loopmentioning

confidence: 99%

Section: B Design Of Outer Control Loop -Voltage Loopmentioning

confidence: 99%

See 1 more Smart Citation

Combining DVR and UPS Techniques for an Uninterruptable Supply of Ultra-Sensitive Non-Linear Appliances

Dobrucký

Šedo

Konarik

2020

ELEKTRON ELEKTROTECH

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show abstract

“…If the signal period is known or can be measured, a relatively small sample size can be chosen within this interval. Such an approach is implemented, for example, in digital oscilloscopes 2 . At the same time, under the unknown signal period, a big sample size is required and that leads to a larger number of summations, which results in increasing the computational costs and decreasing the measurement operating speed.…”

Section: Technical Notementioning

confidence: 99%

“…Measuring the root-mean-square (RMS) values of alternating signals (currents and voltages) is a common task in various areas of electronic engineering [1][2][3][4]. There are various ways to perform such measurement [5,6] that can be divided into several groups.…”

Section: Introductionmentioning

confidence: 99%

Digital Root-mean-square Signal Meter

Chernoyarov

Glushkov

Lintvinenko

et al. 2020

IJE

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This paper introduces a meter of the root-mean-square value of deterministic and stochastic signals of an arbitrary shape that are generated over the set time interval. Such a meter involves only the minimum number of simple arithmetic operations to obtain results, and it ensures a high degree of measurement accuracy. For this purpose, the direct calculation of the signal root-mean-square value is applied while the measurement of the half-period average straightened signal value is carried out by means of the traditional measurement devices. Implementation of this meter requires neither the knowledge of what the signal period is, nor the synchronization with the processed sampling. Simulation is then carried out demonstrating the high efficiency of the proposed measurement algorithm. We analyze the characteristics of the meter operating within a wide frequency range of the measurable signals. The recommendations concerning the hardware implementation of such a meter by means of the field programmable gate arrays are considered. The meter can be used when designing digital high-frequency AC voltmeters and ammeters and it can provide the readings that do not depend upon the signal waveform.

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Design of type‐2 fuzzy logic controller optimized with firefly algorithm for maximum power point tracking of photovoltaic system based on super lift Luo converter

Keçecioğlu

2022

Int J Numerical Modelling

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The efficiency is a very important parameter for photovoltaic systems. Positive output elementary super lift Luo converter classified as high gain DC‐DC converter are used in photovoltaic systems because of their advantages such as high efficiency, reduced ripples, and low switching loss. The drawback of the photovoltaic system based on this converter is its sensitivity to small changes on the control signal. Both maximum power point tracking and control signal stability require a powerful control system as this is a challenging task for the photovoltaic system. Interval type‐2 fuzzy logic systems have recently been utilized in many control processes due to their ability to model uncertainties better than type‐1 fuzzy logic systems. In this work, interval type‐2 Takagi–Sugeno–Kang fuzzy logic controller was first designed as a controller. Then, the controller, which was proposed for this paper, was optimized with the Firefly Algorithm to improve the control performance. Performance of controllers is evaluated via comparative simulation studies under the most demanding environmental conditions. It has been observed that the proposed controller reduces the settling time by more than 50% and increases the efficiency up to 10% according to the simulation situations.

show abstract

Voltage Regulation of a Negative Output Luo Converter Using a PD-PI Type Sliding Mode Current Controller

Cited by 3 publications

References 0 publications

Combining DVR and UPS Techniques for an Uninterruptable Supply of Ultra-Sensitive Non-Linear Appliances

Combining DVR and UPS Techniques for an Uninterruptable Supply of Ultra-Sensitive Non-Linear Appliances

Digital Root-mean-square Signal Meter

Design of type‐2 fuzzy logic controller optimized with firefly algorithm for maximum power point tracking of photovoltaic system based on super lift Luo converter

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