Integrated circuit for real-time poly-phase power quality monitoring

Araujo, V.V. de; Filho, Eduardo F. Simas; Oliveira, Amauri Pereira de; Oliveira, Wagner Luiz Alves de; Esteves, Linton T. C.

doi:10.1016/j.mejo.2018.07.002

Cited by 7 publications

(3 citation statements)

References 22 publications

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“…Still in phasor estimation context, in Rocha et al (2017) is developed a comparative study among computational algorithms used for phasor estimations in power systems. Also about power measurement, in Araujo et al (2018) an integrated circuit for real-time poly-phase power quality monitoring is presented. Studies about power quality can be found in de Melo urea Soares Carneiro and and Leonardo and Oleskovicz (2018).…”

Section: Power System Operationmentioning

confidence: 99%

Real-Time Simulators Applied to Brazilian Power Systems: A Review

Oliveira

García

et al. 2020

J Control Autom Electr Syst

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This paper presents a review on real-time simulators and their use applied to power systems in Brazil. The review comprises most of the current research made in institutions/enterprises that own real-time simulators as well as the application trends of related technologies, considering both conferences and journals published papers. It is observed that several Brazilian universities have simulators in real-time and that the publications in journals have been increased, which shows that the learning curve of the Brazilian research institutions has led to an improvement in the quality of the publications. It is also important to emphasize that the analysis of real systems in most publications indicates a trend and a demand for studies with simulators in real time, to solve problems of companies of the electric sector. Related with works that use real systems in their simulations, several publications were generated in the context of R&D projects. This shows that real-time simulators are very relevant tools for studies on power systems of companies in the electricity sector, aligning scientific research and the provision of highly specialized services.

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Section: Power System Operationmentioning

confidence: 99%

Real-Time Simulators Applied to Brazilian Power Systems: A Review

Oliveira

García

et al. 2020

J Control Autom Electr Syst

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“…SVC is according to the reactive power to compensate automatically and it is from the grid to absorb reactive power to maintain voltage stability of instruction. Moreover, it is good for power grid reactive power balance [3]. When the system fails, svc can stabilize the system by adjusting reactive power.…”

Section: Introductionmentioning

confidence: 99%

Improved Adaptive Backstepping Sliding Mode Control of Static Var Compensator

Dong

Shen

2018

Energies

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The stability of a single machine infinite bus system with a static var compensator is proposed by an improved adaptive backstepping algorithm, which includes error compensation, sliding mode control and a κ -class function. First, storage functions of the control system are constructed based on modified adaptive backstepping sliding mode control and Lyapunov methods. Then, adaptive backstepping method is used to obtain nonlinear controller and parameter adaptation rate for static var compensator system. The results of simulation show that the improved adaptive backstepping sliding mode variable control based on error compensation is effective. Finally, we get a conclusion that the improved method differs from the traditional adaptive backstepping method. The improved adaptive backstepping sliding mode variable control based on error compensation method preserves effective non-linearities and real-time estimation of parameters, and this method provides effective stability and convergence.

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“…In other words, the number of samples needed to reconstruct a signal depends on its bandwidth. However, due to the very short duration and ultrabroadband nature of the transmitted THz signals, this theorem imposes several challenges on the hardware, storage, and subsequent signal processing ultimately leading to stressed out analog-to-digital converters (ADCs) at the receiver side [4,5]. Moreover, the state-of-the art ADCs can only sample at rates around 100 Giga-Samples-per-second (GSas) [6,7], much below the Nyquist rate for THz signals.…”

Section: Introductionmentioning

confidence: 99%

Compressed Detection for Pulse‐Based Communications in the Terahertz Band

Singh

Kim

Jung

2018

Wireless Communications and Mobile Computing

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Terahertz (THz) band (0.1-10 THz)-based electromagnetic communications are envisioned as a key technology to enable future high-data-rate short-range ultrabroadband communications. However, one of the fundamental bottlenecks is the efficiency of the analog-to-digital converters (ADCs) considering the formidable challenge of sampling the signal at the Nyquist rate eventually increasing transceiver design complexity. The Compressed sensing (CS) framework enables the successful reconstruction of sparse signals from a small set of projections onto a random vector which would lead to sub-Nyquist rate sampling. In this paper, THz band channel estimation based on the theory of CS is developed. The proposed approach exploits the fact that transmitting an ultrashort pulse through a multipath THz channel leads to a received THz signal that can be approximated by a linear combination of a few atoms from a predefined dictionary, yielding thus a sparse representation of the received signal. The fundamental idea is in the design of the dictionary of atoms that closely matches the transmitted pulse leading thus to a higher probability of CS reconstruction. The Orthogonal Matching Pursuit (OMP) algorithm is used to identify the strongest atoms in the projected signal. This reconstructed signal is subsequently used as a reference template in a correlator-based detector. The bit error rate (BER) performance of the proposed detector is analyzed and compared with the conventional CS-based channel estimation and reconstruction approach. Extensive simulations show that, for different design parameters, our proposed detector outperforms the traditional CS-based correlator receiver for the same sampling rate leading thus to a much-reduced use of analog-to-digital resources. Moreover, the proposed detector has been shown to reduce the hardware complexity of the receiver by significantly reducing the number of parallel mixer-integration branches.

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Integrated circuit for real-time poly-phase power quality monitoring

Cited by 7 publications

References 22 publications

Real-Time Simulators Applied to Brazilian Power Systems: A Review

Real-Time Simulators Applied to Brazilian Power Systems: A Review

Improved Adaptive Backstepping Sliding Mode Control of Static Var Compensator

Compressed Detection for Pulse‐Based Communications in the Terahertz Band

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