Harmonic Analysis in Frequency and Time Domain

Medína, A.; Segundo, J. P.; Ribeiro, Paulo F.; Xu, Wilsun; Lian, Kuo Lung; Chang, G.W.; Dinavahi, Venkata; Watson, N.R.

doi:10.1109/tpwrd.2013.2258688

Cited by 102 publications

(60 citation statements)

References 73 publications

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“…Several methods have been developed to compute Φ [20], and all those methods rely on numerical integration processes. Each method differs from each other on how the approximation is done, and in the number of full cycles required for the full identification of Φ.…”

Section: Newton Methodsmentioning

confidence: 99%

“…Average models fall within this type of systems, but they have evident limitations to evaluate adverse effect of the harmonic distortion on the performance of the MG. Alternatively, the harmonic domain modeling approach is able to consider the distorted nature of microgrids and also leads to time-invariant representations; however, the proper modeling of closed-loop controls and nonlinearities are still a bottleneck in this domain [20]. In order to deal with these problems, the fast time-domain methods were proposed [21], [22] and based on these seminal papers, other methods have been proposed and some of them will be presented in the following sections.…”

Section: On the Computation Of The Periodic Steady State Solutionmentioning

confidence: 99%

See 1 more Smart Citation

Harmonic Issues Assessment on PWM VSC-Based Controlled Microgrids Using Newton Methods

Tinajero

Segundo

Gallardo

et al. 2018

IEEE Trans. Smart Grid

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Abstract-This paper presents the application of Newton-based methods in the time-domain for the computation of the periodic steady state solutions of microgrids with multiple distributed generation units, harmonic stability and power quality analysis. Explicit representation of the commutation process of the power electronic converters and closed-loop power management strategies are fully considered. Case studies under different operating scenarios are presented: grid-connected mode, islanded mode, variations in the Thevenin equivalent of the grid and the loads. Besides, the close relation between the harmonic distortion, steady state performance of the control systems, asymptotic stability and power quality is analyzed in order to evaluate the importance and necessity of using full models in stressed and harmonic distorted scenarios.

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Section: Newton Methodsmentioning

confidence: 99%

Section: On the Computation Of The Periodic Steady State Solutionmentioning

confidence: 99%

Harmonic Issues Assessment on PWM VSC-Based Controlled Microgrids Using Newton Methods

Tinajero

Segundo

Gallardo

et al. 2018

IEEE Trans. Smart Grid

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“…In time domain, the conventional solution (brute force) and the fast periodic steady-state solution are distinguished (Medina et al, 2013). In these methods, voltage and current waveforms are obtained by integrating the differential equations that describe the steady-state of the system.…”

Section: Time Domain Methodsmentioning

confidence: 99%

Assessment of the harmonic distortion in residential distribution networks: literature review

Navarro¹,

Romero²,

Zini³

2017

Ing. Inv.

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Harmonic distortion in residential distribution networks is increasing due to the penetration of multiple nonlinear loads, including modern technologies such as plug-in electric vehicles and energy efficient lighting (e.g., compact fluorescent and LED lamps). The distributed nature of these loads introduces complexity in the analysis of harmonic propagation. Therefore, more sophisticated tools are needed to investigate this issue, on the basis of formerly established methodologies. This paper presents a literature review on the assessment of the harmonic distortion in residential distribution networks. To that end, bibliographic data of the most representative publications related to the topic were obtained. From these data, a novel citation analysis method was developed to construct a chronologically organized direct citation network. Based on the temporal evolution of the citation network, the aforementioned issue is presented, identifying lines of research and proposed methodologies. From the analysis of the literature review, the stages for modeling and simulating harmonic propagation are identified and described. The principal aspects to be addressed for obtaining an accurate harmonic analysis are also identified and detailed, namely, harmonic interaction, diversity, unbalance, and uncertainty. Finally, main conclusions are highlighted.Keywords: Electric power system, harmonic distortion, power quality, systematic review. RESUMENLa distorsión armónica en redes de distribución está aumentando debido a la penetración de múltiples cargas no lineales, incluyendo tecnologías modernas como los vehículos eléctricos y las lámparas de alta eficiencia energética (por ejemplo, lámparas compactas fluorescentes y LEDs). La naturaleza distribuida de estas cargas introduce complejidad en el análisis de la propagación de armónicos. Por lo tanto, se necesitan herramientas más sofisticadas para investigar esta temática, sobre la base de metodologías establecidas. Este artículo presenta una revisión literaria sobre la evaluación de la distorsión armónica en las redes de distribución residencial. Para ello, se obtuvieron datos bibliográficos de las publicaciones más representativas relacionadas con el tema. A partir de estos datos, se desarrolló un nuevo método de análisis de citas para construir una red de citas directas, organizada cronológicamente. Con base en la evolución temporal de la red, se observan las líneas de investigación y las metodologías propuestas. Además, se identifican las etapas para el modelado y simulación de la propagación de armónicos y se detallan los aspectos para obtener un análisis armónico preciso, a saber, interacción armónica, diversidad, desequilibrio e incertidumbres. Finalmente, se presentan las conclusiones.Palabras clave: Calidad de potencia, distorsión armónica, revisión sistemática, sistema eléctrico de potencia.

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“…Applying the dynamic harmonic domain methodology to Equation (8), and then applying a numerical integration rule, the companion harmonic circuit model in the Norton equivalent form is obtained as shown in Equation (9). The detailed procedure of the development of the CHCM of the induction machine is presented in Appendix A.…”

Section: Induction Machine Modelmentioning

confidence: 99%

Harmonic Modelling of the Wind Turbine Induction Generator for Dynamic Analysis of Power Quality

et al. 2018

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Abstract:Given the increasing integration of wind-based generation systems into the electric grid, efforts have been made to deal with the problem of power quality associated with the intermittent nature of these systems. This paper presents a new modelling approach oriented towards harmonic distortion analysis of the induction machine for wind power applications. The model is developed using companion harmonic circuit modelling, which is a natural approach for analysis of the adverse effects of harmonic distortion in electric power systems, and represents an easier solution method than the well known dynamic harmonic domain, since it solves algebraic equations instead of state-space differential equations. The structure of the companion circuits simplifies both the formulation and solution for power systems with wind-based generation systems. This approach is especially useful for analysis of the harmonic interaction in transient and steady states between the wind power generator and the power system, whose interconnection is made through electronic converters. The proposed model allows us to compute the dynamics of the wind turbine, which are influenced by disturbances such as changes in the wind velocity, voltage fluctuations, electric waveform distortion, and mechanical vibrations, among other factors. Moreover, the cross-coupling between harmonic components at different frequencies is considered. The proposed model represents an integral framework of the electrical and mechanical subsystems of a wind turbine, allowing for analysis of the interactions between them, and understanding power quality degradation behaviour as well as causes and consequences, while also giving useful information on the field of simulation and control. To test the performance of the proposed model, a test power system is used to obtain the behaviour of a wind turbine induction generator in response to typical power quality disturbances, i.e., harmonic distortion, and voltage sags and swells. Then, the dynamics of the variables considering their harmonic interactions are analysed.

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Harmonic Analysis in Frequency and Time Domain

Cited by 102 publications

References 73 publications

Harmonic Issues Assessment on PWM VSC-Based Controlled Microgrids Using Newton Methods

Harmonic Issues Assessment on PWM VSC-Based Controlled Microgrids Using Newton Methods

Assessment of the harmonic distortion in residential distribution networks: literature review

Harmonic Modelling of the Wind Turbine Induction Generator for Dynamic Analysis of Power Quality

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