Estimation of equivalent inductance and resistance for adaptive control of three-phase PWM rectifiers

Bechouche, Alı; Abdeslam, Djaffar Ould; Seddiki, Hamid; Rahoui, Adel

doi:10.1109/iecon.2016.7794002

Cited by 13 publications

(13 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Considering the power expression depicted in (8), where the constant value are terms associated to the positive sequence and the other terms the interacting between different sequences.…”

Section: B Equivalent Impedance Of Active Loadsmentioning

confidence: 99%

“…In [7] grid impedance is estimated based on the grid harmonics and the impedance at different frequencies, this study is only supported with simulations. In [8] a similar approach is presented; the estimated coefficients are online updated using an adaptive linear neuron (ADALINE) algorithm, this model requires to measure grid current and voltages but it is experimentally demonstrated under balanced conditions. In [9], grid inductance is estimated using two consecutive samples of the grid current within a switching period.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Online Impedance Estimation in AC Grids Considering Parallel-Connected Converters

Suárez

Blanco

Garcı́a

et al. 2018

2018 IEEE Energy Conversion Congress and Exposition (ECCE)

View full text Add to dashboard Cite

This paper addresses the estimation of the grid impedance under unbalanced conditions in AC Grids with power converter operating in parallel. A Pulsed Signal Injection (PSI) approach is employed for online estimating the grid impedance using an Recursive Least Square (RLS) algorithm. The method proposes here extends previous works focused on the impedance measurement and identification for pure passive grids. The most important contribution of the proposal can thus be summarized as the presentation of an online impedance technique suitable to be used in distribution grids having other power converters connected near the Point of Common Coupling (PCC). The proposal is valid both for balanced and unbalanced conditions.

show abstract

“…Considering the power expression depicted in (8), where the constant value are terms associated to the positive sequence and the other terms the interacting between different sequences.…”

Section: B Equivalent Impedance Of Active Loadsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Online Impedance Estimation in AC Grids Considering Parallel-Connected Converters

Suárez

Blanco

Garcı́a

et al. 2018

2018 IEEE Energy Conversion Congress and Exposition (ECCE)

View full text Add to dashboard Cite

show abstract

“…The RLS algorithm will allow to estimate the resistances and inductances in (14) by determining the values of the coefficients a , as calculated by the observer, and the one estimated by…”

Section: Rls Algorithm Implementationmentioning

confidence: 99%

“…For this paper, the values shown in Table I have been used. After the injection of a new pulse, the estimation of the W components for both the α and the β components is updated and a new estimation for R αβ and L αβ is obtained using (14).…”

Section: Rls Algorithm Implementationmentioning

confidence: 99%

See 1 more Smart Citation

Observer-Based Pulsed Signal Injection for Grid Impedance Estimation in Three-Phase Systems

Garcia

Sumner

Navarro-Rodríguez

et al. 2018

IEEE Trans. Ind. Electron.

View full text Add to dashboard Cite

Abstract-This paper addresses the estimation of the grid impedance and the control of grid-tied converters by combining pulsed-signal injection and observer based techniques. A Luenberger based observer is used for controlling the grid-side current of an LCL filter by only measuring the converter-side currents and the grid-side voltage. This configuration mitigates the effects of parameter variation at the LCL filter. Under grid impedance changes, the observer control signal will be used for triggering the signal injection. A Pulsed Signal Injection (PSI) approach is employed for estimating online the grid impedance using an RLS algorithm. Compared with existing grid-impedance estimation techniques, the proposed method can: 1) identify a generic RL grid impedance, even under unbalanced conditions; 2) reduce the distortion induced by the excitation signal by relying on the observer to triggering the injection when a grid impedance change is detected; 3) Identify grid impedance values much lower than the converter filter impedance, which is the usual situation when the converter rated power is well below the grid rating. Finally, it is worth pointing out that the proposed estimation technique is well suited to be incorporated into an adaptive current controller scheme.

show abstract

Performance investigation: A predictive controller for a photovoltaic system connected to the grid

Abdzaid,

FIrouzi,

Altuma

et al. 2024

6th International Conference on Engineering Sciences – Ices2022

View full text Add to dashboard Cite

Estimation of equivalent inductance and resistance for adaptive control of three-phase PWM rectifiers

Cited by 13 publications

References 18 publications

Online Impedance Estimation in AC Grids Considering Parallel-Connected Converters

Online Impedance Estimation in AC Grids Considering Parallel-Connected Converters

Observer-Based Pulsed Signal Injection for Grid Impedance Estimation in Three-Phase Systems

Performance investigation: A predictive controller for a photovoltaic system connected to the grid

Contact Info

Product

Resources

About