Nearly Constant Switching Frequency Hysteresis Current Controller for Multilevel Inverter based STATCOM

Raju, Athira; Cheriyan, Elizabeth P.; Ramchand, Rijil

doi:10.1109/tencon.2019.8929458

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…Moreover, the proposed control strategy based STATCOM is not reported till now. The authors have conducted a simulation study on multilevel inverter based STATCOM with the proposed controller [32]. The present work illustrates the analysis and hardware implementation of the proposed controlled two‐level VSI based STATCOM and forms the foundation work for the above study.…”

Section: Introductionmentioning

confidence: 93%

Investigations on STATCOM using current error space phasor based modified hysteresis current controller

Raju

Cheriyan

Ramchand

2020

IET Generation Trans & Dist

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A STATCOM that employs a nearly constant switching frequency hysteresis current controlled VSI is presented in this paper. Hysteresis controller enhances the dynamic performance of STATCOM. The switching frequency variations associated with the conventional hysteresis current controller is reduced by using a variable hysteresis boundary. Variable hysteresis boundary is predetermined by the current error, based on the sampled magnitudes of the reference voltage vector. This makes the switching frequency nearly constant and switching vector selection optimal. As a result, a voltage FFT profile similar to that of a space vector modulated STATCOM is obtained. Choosing a space vector based reference voltage vector keeps the current error within the pre-calculated boundaries and improves the current tracking capability of STATCOM. The systematic method of selecting a switching sequence avoids random switching. Effectiveness of the proposed method for the control of grid-connected STATCOM is experimentally verified and compared with a voltage-controlled space vector modulated voltage source inverter based STAT-COM. The hardware implementation of the controller for grid-connected STATCOM is carried out in OPAL-RT real-time simulator platform and experimentally validated for a three-phase balanced load of 5 kVA.

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Section: Introductionmentioning

confidence: 93%

Investigations on STATCOM using current error space phasor based modified hysteresis current controller

Raju

Cheriyan

Ramchand

2020

IET Generation Trans & Dist

Self Cite

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“…Estos dispositivos están construidos con elementos estáticos y mediante elementos de electrónica de potencia que, en su conjunto, nos permite mejorar el control y aumentar la capacidad de transferencia de energía en sistemas de corriente alterna (CA). El principio de funcionamiento del compensador sincrónico, que es un tipo de FACTS, opera bajo tres criterios fundamentales i) un condensador de corriente continua (CC) detrás de un transformador opera como una fuente de tensión controlable, ii) la diferencia de tensión en la reactancia del transformador produce intercambios de potencia activa y reactiva entre el STATCOM y el SEP y iii) la magnitud de tensión de salida del STATCOM se puede controlar a través de la variación de tensión que circula por el condensador de CC [19][20][21]. Una estructura básica que resume la arquitectura del STATCOM se ilustra con la Figura 2.…”

Section: Materiales Y Métodosunclassified

Mejora del proceso de molienda de lactosa para una empresa fabricante de productos lácteos

Loja

Pillco

Cobos

et al. 2022

ings

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El aumento de la demanda en los distintos sistemas eléctricos de potencia (SEP) tiene un impacto negativo en la estabilidad de la tensión, la confiabilidad y la calidad del suministro eléctrico. El perfil de tensión disminuye cuando las unidades de generación no son capaces de suministrar potencia reactiva al sistema eléctrico en los momentos que se requiere. Con el desarrollo de la electrónica de potencia y los complejos sistemas de control, se han podido introducir dispositivos de sistemas flexibles de transmisión de corriente alterna (FACTS, del inglés Flexible Alternating Current Transmission System). En este artículo se analiza en detalle el impacto que genera la introducción de un tipo de FACTS que permite la compensación de potencia reactiva en el SEP. Además, se analizará una metodología para decidir la capacidad del compensador síncrono estático (STATCOM, del inglés Static Synchronous Compensator) y su ubicación óptima con la ejecución de flujos de potencia continuos (FPC). Finalmente, se estudiará el impacto positivo de la instalación de un control estabilizador de potencia (PSS, del inglés Power System Stabilizer) para asegurar la estabilidad de tensión en el SEP. Este artículo se desarrolla utilizando el sistema base IEEE de 14 barras bajo dos modelos matemáticos para el cálculo del flujo de potencia desarrollados en el software Matlab, que son: i) utilizando las ecuaciones de balance de potencia y ii) Newton Raphson con el \textit{toolbox} de MATLAB (PSAT, del inglés Power System Analysis Toolbox).

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“…has found performance comparable to the PI controller in terms of response dynamics and control effort required. The hysteresis control scheme[151,158,171,178] is very useful in controlling reactive power and voltage variation. A combination of dynamic stability and damping of power system oscillation has been achieved by the PID controller in[99,105,109].…”

mentioning

confidence: 99%

A Comprehensive Review on STATCOM: Paradigm of Modeling, Control, Stability, Optimal Location, Integration, Application, and Installation

Sharma,

Gupta,

Zuhaib

et al. 2024

IEEE Access

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The Static synchronous compensator (STATCOM) is a renowned FACTS (flexible alternating current transmission system) device used in power grids to cope with protean conditions. This article provides a comprehensive bibliographic review of various aspects of STATCOM developed over the last 16 years. The paper includes a detailed study presenting different models, test systems, and results of various researches. The study covers the modelling, control technology, stability, optimal location, applications, and installation of STATCOM. The modelling of STATCOM is diverse and include various models such as voltage source converters, software-based models, load flow models, pulse width modulation, and modular multilevel converters. The control technology includes a PI/PID controller, fuzzy-based, feedback controller, model predictive controller, sliding mode controller, and miscellaneous controller based on different schemes, algorithms, and controllers. In studying the stability analysis, all stability aspects such as steady-state stability, dynamic stability, and transient stability are considered for the stability analysis. The genetic algorithm, heuristic algorithm, probabilistic technique and branch and bound approach are mainly used for the optimal placement of STATCOM as described in the available research paper. Various applications of STATCOM in power system are identified such as optimal power flow, voltage stability, voltage fluctuation mitigation, fault analysis and total harmonic distortion. This paper, also mentions the current installation of STATCOM is also mentioned with their different locations such as China (2018), and Canada (2019). The current functions of STATCOM still have many limitations. So there is still a lot of room for improvement. This paper will help the researcher finding the reference of a particular topic of interest in different aspects of STATCOM. The finding of different sections of the paper can help the researchers to develop new ideas and work on different prospective of the device.

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Nearly Constant Switching Frequency Hysteresis Current Controller for Multilevel Inverter based STATCOM

Cited by 6 publications

References 14 publications

Investigations on STATCOM using current error space phasor based modified hysteresis current controller

Investigations on STATCOM using current error space phasor based modified hysteresis current controller

Mejora del proceso de molienda de lactosa para una empresa fabricante de productos lácteos

A Comprehensive Review on STATCOM: Paradigm of Modeling, Control, Stability, Optimal Location, Integration, Application, and Installation

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