Decoupled Reference Generator for Shunt Active Filters Using the Conservative Power Theory

Marafão, Fernando Pinhabel; Brandão, Danilo I.; Gonçalves, Flávio Alessandro Serrão; Paredes, Helmo Kelis Morales

doi:10.1007/s40313-013-0043-0

Cited by 23 publications

(16 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…To provide a flexible online control strategy, the reference signal containing any percentage of the undesired orthogonal components of current, in (13a and 13b) or (14), is expressed as a function of the different compensation coefficients, as in (23) or (24). Thus, the new strategy is defined for adaptive compensation (online), which enables flexible extraction of unwanted components of current, i.e., it allows one to select the type of disturbance and the percentage of compensation to be applied.…”

Section: Integration Of Current Referencesmentioning

confidence: 99%

“…Thus, the new strategy is defined for adaptive compensation (online), which enables flexible extraction of unwanted components of current, i.e., it allows one to select the type of disturbance and the percentage of compensation to be applied. In fact, there are two possible strategies, the first sets the disturbances apart according to (23) and the second one focuses on the overall compensation of the disturbances according to (24). Both the strategies can lead to the same improvement of PQ at the PCC.…”

Section: Integration Of Current Referencesmentioning

confidence: 99%

See 1 more Smart Citation

Control of Single-Phase Power Converters Connected to Low-Voltage Distorted Power Systems With Variable Compensation Objectives

Bonaldo

Paredes

Pomílio

2016

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

This paper presents a flexible control technique for power electronics converters, which can function as an active power filter, as a local power supply interface, or perform both functions simultaneously. Thus, it can compensate for current disturbances while simultaneously injecting active power into the electrical grid, transforming the power converter into a multifunctional device. The main objective is to use all the capacity available in the electronic power converter to maximize the benefits when it is installed in the electricity grid. This objective is achieved by using the orthogonal current decomposition of the Conservative Power Theory. Each current component is weighted by compensation coefficients ( ), which are adjusted instantaneously and independently, in any percentage, by means of load conformity factors ( ), thus providing online flexibility with respect to the objectives of compensation and injection of active power. Lastly, simulated and experimental results are presented to validate the effectiveness and performance of the proposed approach.

show abstract

Section: Integration Of Current Referencesmentioning

confidence: 99%

Section: Integration Of Current Referencesmentioning

confidence: 99%

Control of Single-Phase Power Converters Connected to Low-Voltage Distorted Power Systems With Variable Compensation Objectives

Bonaldo

Paredes

Pomílio

2016

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

show abstract

“…3) Compensação do fator de potência -De forma semelhante, o coeficiente para o fator de potência resulta em: (21) Utilizando (21) e (13), também pode ser ajustada a corrente de referência para o CEP que leva a uma compensação parcial ou total do fator de potência. Observe que, quando , o seu coeficiente é nulo ( ).…”

Section: ) Compensação Do Fator De Reatividade -Deunclassified

“…Por exemplo, o comportamento de um sistema fotovoltaico, fonte renovável mais comum nos ambientes de microrredes de baixa tensão, além de depender do horário de funcionamento, também é intermitente e imprevisível, como se observa na Figura 2. Na maioria dos casos de uso multifuncional o CEP é destinado a compensar todos os distúrbios da corrente [14]- [16] ou apenas um subconjunto das componentes indesejadas da corrente [17]- [21]. Embora a solução ideal seja compensar todas as componentes indesejadas da corrente, muitas vezes é necessário compensar apenas uma porcentagem ou uma específica componente indesejada da corrente, devido principalmente à limitação da capacidade do CEP.…”

Section: Introductionunclassified

Controle Flexível para Conversores Monofásicos Conectados a Sistemas Elétricos Distorcidos de Baixa Tensão

Bonaldo¹,

Paredes²,

Pomílio³

2014

Eletrônica de Potência

View full text Add to dashboard Cite

Resumo -Este trabalho apresenta uma técnica de controle flexível para conversores eletrônicos de potência, que podem funcionar como filtro ativo de potência, como interface entre uma fonte de energia local e a rede ou realizar ambas as funções simultaneamente. Desta forma se pode compensar distúrbios de corrente e injetar potência na rede elétrica ao mesmo tempo, configurando o conversor como um dispositivo multifuncional. O principal objetivo é usar toda a capacidade do conversor para atingir o máximo de benefícios quando este é instalado junto à rede elétrica. Para tal é utilizada a decomposição ortogonal da corrente da Teoria de Potência Conservativa. Cada componente ortogonal da corrente é ponderada por fatores de compensação ( ), que são ajustados instantaneamente de forma independente, em qualquer porcentagem, mediante os fatores de conformidade da carga ( ), proporcionando, assim, uma flexibilidade online em relação aos objetivos de compensação. Finalmente, resultados experimentais e de simulações são apresentados para validar a eficácia e o desempenho da abordagem proposta. FLEXIBLE CONTROL FOR SINGLE-PHASE CONVERTER ON DISTORTED LOW VOLTAGES POWER SYSTEMSAbstract -This paper presents a technique to add flexibility in the control of power electronic converters. The power converter can function as an active power filter, as a local power source interface or perform both functions i. e. mitigate current disturbances and inject power into the grid simultaneously, configuring it as a multifunctional device. The main goal is to extract the full capability of the grid connected power electronic converter to achieve maximum benefits. To achieve this goal, the orthogonal current decomposition of the

show abstract

“…Such equipment is generally known as active power filters [2], passive power filters [3] and hybrid power filter [4]. Regarding to the control strategies, a great number of possibilities have been addressed [5], [6], highlighting the important contributions based on the PQ Theory [7], [8], [9], DQ control method [10], [11] and CPT [12], [13]. The PQ theory and DQ control algorithm have been widely implemented in power conditioning applications, especially in the last two decades.…”

Section: Introductionmentioning

confidence: 99%

PQ, DQ and CPT control methods for shunt active compensators — A comparative study

Mortezaei

Lute

Simões

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

View full text Add to dashboard Cite

This paper investigates three different control techniques for controlling shunt active compensators for harmonic, reactive power and unbalance compensation. The considered methods were the instantaneous real and imaginary power theory (PQ), the Conservative Power Theory (CPT) and the synchronous reference frame method (DQ). So, the major goal is to explore the main similarities and differences in terms of steady state performance, dynamic response and computational complexity of each compensation method. Additionally, the paper also discusses how to achieve selective compensation by means of every technique, by means of suitable power and current decompositions. A three-phase grid with unbalanced non-linear load and non-negligible line impedance was used for comparing the approaches under ideal and deteriorated voltage conditions. I.978-1-4799-5776-7/14/$31.00 ©2014 IEEE

show abstract

Decoupled Reference Generator for Shunt Active Filters Using the Conservative Power Theory

Cited by 23 publications

References 15 publications

Control of Single-Phase Power Converters Connected to Low-Voltage Distorted Power Systems With Variable Compensation Objectives

Control of Single-Phase Power Converters Connected to Low-Voltage Distorted Power Systems With Variable Compensation Objectives

Controle Flexível para Conversores Monofásicos Conectados a Sistemas Elétricos Distorcidos de Baixa Tensão

PQ, DQ and CPT control methods for shunt active compensators — A comparative study

Contact Info

Product

Resources

About

Decoupled Reference Generator for Shunt Active Filters Using the Conservative Power Theory

Cited by 23 publications

References 15 publications

Control of Single-Phase Power Converters Connected to Low-Voltage Distorted Power Systems With Variable Compensation Objectives

Control of Single-Phase Power Converters Connected to Low-Voltage Distorted Power Systems With Variable Compensation Objectives

Controle Flexível para Conversores Monofásicos Conectados a Sistemas Elétricos Distorcidos de Baixa Tensão

PQ, DQ and CPT control methods for shunt active compensators &#x2014; A comparative study

Contact Info

Product

Resources

About

PQ, DQ and CPT control methods for shunt active compensators — A comparative study