Current Control of Grid-Tied <i>LCL</i>-VSI With a Sliding Mode Controller in a Multiloop Approach

Martins, Leandro Tomé; Stefanello, Márcio; Pinheiro, Humberto; Vieira, Rodrigo Padilha

doi:10.1109/tpel.2019.2905717

Cited by 27 publications

(19 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…where K 3 ∈ ℝ + is a positive constant gain selected based on the stability analysis, sgn( ⋅ ) is the standard signum function which is used to compensate for uncertainty N 0 . Finally, by substituting the control signal from (21) into (20), the closed-loop error dynamic for η t can be obtained as…”

Section: Control Developmentmentioning

confidence: 99%

“…Proof: See Theorem 8.4 in [10] for Lemma 2 proof. Theorem 1: The control law in (21) ensures that all the closed loop error signals are bounded and regulated as e 2 t , e t , e f t , r f t , η t → 0 as t → ∞, provided K 3 is selected to satisfy (24) Proof: Let us define the auxiliary function P 0 t ∈ ℝ as…”

Section: Stability Analysismentioning

confidence: 99%

“…The controller includes an inner voltage loop and an outer current loop. In [21], the authors proposed a multiloop control scheme to inject clean current to the grid. They use the inner loop voltage control as an active damping technique for LCL resonance and the outer loop current control to control the grid current.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improvement of the power quality of single‐phase grid‐connected inverter by filter‐based control scheme

Alqatamin

McIntyre

2020

IET Power Electronics

View full text Add to dashboard Cite

In this study, a filter-based control scheme is developed for a single-phase grid-connected inverter system with the local load. Improving the quality of the local load voltage in the grid-connected mode and injecting clean current to the grid at the same time is the main objective of the proposed scheme. Moreover, unity power factor at the grid side for different types of the local load is ensured by the proposed controller. Furthermore, this control approach ensures the seamless transfer between grid-connected and stand-alone operation modes without adjusting the controller structure and without any resynchronisation scheme. The proposed scheme is validated by the Lyapunov stability analysis. Moreover, an experimental testbed has been implemented to further validate the controller in the real-time environment, as well as, the performance is compared to a conventional approach.

show abstract

Section: Control Developmentmentioning

confidence: 99%

Section: Stability Analysismentioning

confidence: 99%

See 1 more Smart Citation

Improvement of the power quality of single‐phase grid‐connected inverter by filter‐based control scheme

Alqatamin

McIntyre

2020

IET Power Electronics

View full text Add to dashboard Cite

show abstract

“…By the other hand, the active damping methods are based on the application of a controller, without adding any external passive components. In the literature, there are several approaches to control gridside currents of LCL filter, including: PI (Proportional-Integral) [10], [14], [15], PI with Resonant Controller [12], [16], Multi-resonant Control [17], Optimal Control [18], [19], Robust Control [20]- [23], Sliding Mode Control [24], [25], Predictive Control [26], among others.…”

Section: Introductionmentioning

confidence: 99%

A Direct Discrete-Time Reduced Order Robust Model Reference Adaptive Control for Grid-Tied Power Converters with Lcl Filter

Evald¹,

Tambara²,

Gründling³

2020

Eletrônica de Potência

View full text Add to dashboard Cite

In this work is presented the design of a direct discrete-time reduced order RMRAC (Robust Model Reference Adaptive Control) applied to the gridside current control of a static grid-tied voltage-fed 3wire converter with LCL filter. The proposed controller tracks the reference model output as close as a higher order RMRAC, with similar performance. Furthermore, it rejects exogenous disturbances from grid without the need of conventional resonant controllers, often employed in this kind of application. To design the reduced order controller, the LCL filter is approximated to a first order transfer function, neglecting the capacitor influence. Besides, it is shown mathematically that capacitor is the main element that compounds the additive dynamics, which is considered as unmodelled dynamics to design the controller. Furthermore, experimental results performed in a TMS320F28335 Delfino microcontroller are presented and show the similarity of performance between proposed control method and higher order RMRAC, regarding to harmonics content, which indicate its feasibility.

show abstract

“…Como consequência, na literatura são apresentadas diversas técnicas que possibilitam operação satisfatória nesse sistema Guo et al (2019). Por exemplo, as técnicas model predictive controller, sliding mode controller e backstepping são adotadas para incrementar a robustez e lidar com o problema associado ao pico de ressonância Falkowski e Sikorski (2018); Martins et al (2019); Dehkordi et al (2017).…”

Section: Introductionunclassified

Desenvolvimento e análise de um algoritmo backstepping aplicado a um conversor estático com conexão à rede

Araujo

Vieira

2020

Anais Do Congresso Brasileiro De Automática 2020

View full text Add to dashboard Cite

Esse artigo apresenta o desenvolvimento e análise de um algoritmo backstepping aplicado ao controle de corrente de um conversor estático conectado à rede. A análise do sistema proposto é realizada com apresentação de uma metodologia de projeto de ganhos do controlador e vericação do impacto das variações paramétricas. Assim, o projeto do sistema é realizado de uma forma simples, em que a escolha de ganhos e associada a dinâmica requerida. Resultados de simulações são apresentados para validar o método proposto.

show abstract

Current Control of Grid-Tied LCL-VSI With a Sliding Mode Controller in a Multiloop Approach

Cited by 27 publications

References 40 publications

Improvement of the power quality of single‐phase grid‐connected inverter by filter‐based control scheme

Improvement of the power quality of single‐phase grid‐connected inverter by filter‐based control scheme

A Direct Discrete-Time Reduced Order Robust Model Reference Adaptive Control for Grid-Tied Power Converters with Lcl Filter

Desenvolvimento e análise de um algoritmo backstepping aplicado a um conversor estático com conexão à rede

Contact Info

Product

Resources

About