Voltage Observer-Based Control for Single-Phase Grid-Connected PV Inverter

Hinsui, Thaworn; Sangtungtong, Wirote

doi:10.1109/ieecon45304.2019.8938957

Cited by 3 publications

(3 citation statements)

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“…Inspired by the voltage observer (such as [33]), similarly, the average power observer of the DG# ik unit is expressed as,

\begin{equation}{\hat P_{ik}} = {P_{ik}}\left( t \right) + \int\limits_0^t {\sum_{jk \in {N_i}} {{a_{ij}}\left( {{{\hat P}_{jk}}\left( \tau \right) - {{\hat P}_{ik}}\left( \tau \right)} \right)d\tau } } \end{equation}

where

{\hat P_{jk}}

is the estimated average active power from its neighbour DGs.…”

Section: Proposed Distributed Decentralized Cooperative Control Schemementioning

confidence: 99%

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A distributed decentralized cooperative control scheme for microgrids

Li¹,

Luo

Tian³

et al. 2023

IET Generation Trans & Dist

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A hybrid series‐parallel microgrid structure and its distributed decentralized cooperative control strategy are introduced in this paper. In the hybrid series‐parallel microgrids, the distributed generators (DGs) are concatenated in parallel to form a paralleled‐connected generation (PCG) module. Further, the hybrid series‐parallel microgrids consist of multiple PCG modules in series. For the considered microgrids, a distributed decentralized cooperative control strategy is proposed. For DGs in the same PCG module, low‐bandwidth communications are applied to obtain convergence control of the system. Meanwhile, different PCG modules realize autonomous synchronization in a communication‐free manner. Thus, the proposed distributed decentralized cooperative control method is a low‐bandwidth communication approach. Moreover, it is immune to single‐point fault and communication failure. Finally, the feasibility of the proposed controller for the considered microgrids is verified by stability and simulations.

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“…Inspired by the voltage observer (such as [33]), similarly, the average power observer of the DG# ik unit is expressed as,

\begin{equation}{\hat P_{ik}} = {P_{ik}}\left( t \right) + \int\limits_0^t {\sum_{jk \in {N_i}} {{a_{ij}}\left( {{{\hat P}_{jk}}\left( \tau \right) - {{\hat P}_{ik}}\left( \tau \right)} \right)d\tau } } \end{equation}

where

{\hat P_{jk}}

is the estimated average active power from its neighbour DGs.…”

Section: Proposed Distributed Decentralized Cooperative Control Schemementioning

confidence: 99%

“…Inspired by the voltage observer (such as [33]), similarly, the average power observer of the DG#ik unit is expressed as,…”

Section: Average Active Power Observermentioning

confidence: 99%

A distributed decentralized cooperative control scheme for microgrids

Li¹,

Luo

Tian³

et al. 2023

IET Generation Trans & Dist

View full text Add to dashboard Cite

show abstract

“…A full-state feedback current controller with a reduced-order disturbance observer is proposed for single-phase grid-tied inverter systeme (Cheng et al, 2021), it can reduce the influence of uncertain interference factors and improve the robustness of the system. Reference (Hinsui and Sangtungtong, 2019) designed a voltage observer instead of a voltage sensor for the single-phase gridconnected inverter system, and it can achieve the same performance in comparison with the actual solar-array voltage.…”

Section: Introductionmentioning

confidence: 99%

An Inductor Current Sensorless Control Strategy Based on Modified VSG Method for Single-Phase Microgrid Application With Seamless Transfer Capability

Zhang

Zheng

et al. 2021

Front. Energy Res.

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This paper proposes an inductor current sensorless control strategy based on modified virtual synchronous generator (VSG) method for single-phase inverter-interfaced microgrid application. Firstly, the outer power loop with Q-U integral term is presented for output reactive power enhancement, and an inner voltage regulation loop based on luenberger state observer is proposed to reduce the inductor current sensor. Meanwhile, in order to improve the response speed of the observer, the luenberger observer is designed based on the optimal pole assignment method. Secondly, a seamless switching strategy based on the modified VSG method is proposed, which can realize the seamless transition between the island mode and grid-connected mode. Finally, a single-phase 3kW VSG prototype is built, and the effectiveness and correctness of the proposed control strategy is verified by the simulation and experimental results.

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Simulation and Analysis of Single-Stage Grid-Connected Solar PV System Using ANN

Singh

Ansari

et al. 2022

Intelligent Computing Techniques for Smart Energy Systems

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Voltage Observer-Based Control for Single-Phase Grid-Connected PV Inverter

Cited by 3 publications

References 0 publications

A distributed decentralized cooperative control scheme for microgrids

A distributed decentralized cooperative control scheme for microgrids

An Inductor Current Sensorless Control Strategy Based on Modified VSG Method for Single-Phase Microgrid Application With Seamless Transfer Capability

Simulation and Analysis of Single-Stage Grid-Connected Solar PV System Using ANN

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