Control of grid‐connected converters

Milicua, Aritz; Abad, Gonzalo

doi:10.1002/9781118954454.ch4

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Arranging the involved terms into a single equation, and after some mathematical manipulations, the theoretical amplitude of the phase voltage at the PCC side can be obtained. As a result, the PCC voltage is related to the voltage amplitude at the grid side, the injected currents and the grid impedance as (14) where V x is the amplitude of the supported phase voltage, V gx is the phase voltage at the grid side, and I px and I qx are the unknown variables.…”

Section: A Maximization Of the Lowest Phasementioning

confidence: 99%

Control Strategy for Distribution Generation Inverters to Maximize the Voltage Support in the Lowest Phase During Voltage Sags

Camacho

Castilla

Miret

et al. 2018

IEEE Trans. Ind. Electron.

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Voltage sags are considered one of the worst perturbations in power systems. Distributed generation power facilities are allowed to disconnect from the grid during grid faults whenever the voltage is below a certain threshold. During these severe contingencies, a cascade disconnection could start, yielding to a blackout. To minimize the risk of a power outage, inverter-based distributedgeneration systems can help to support the grid by appropriately selecting the control objective. Which control strategy performs better when supporting the grid voltage is a complex decision that depends on many variables. This paper presents a control scheme that implements a smart and simple strategy to support the fault: the maximum voltage support for the lowest phase voltage. Therefore, the faulted phase that is more affected by the sag can be better supported since this phase voltage increases as much as possible, reducing the risk of under-voltage disconnection. The proposed controller has the following features: a) maximizes the voltage in the lowest phase, b) injects the maximum rated current of the inverter, and c) balances the active and reactive power references to deal with resistive and inductive grids. The control proposal is validated by means of experimental results in a laboratory prototype.

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Section: A Maximization Of the Lowest Phasementioning

confidence: 99%

Control Strategy for Distribution Generation Inverters to Maximize the Voltage Support in the Lowest Phase During Voltage Sags

Camacho

Castilla

Miret

et al. 2018

IEEE Trans. Ind. Electron.

View full text Add to dashboard Cite

show abstract

“…The control scheme proposes in this paper used to align the AC voltages with the orientation of grid voltage space-vector [24]. This control strategy can be easily being developed using the dq-components of a system model.…”

Section: Gvovcmentioning

confidence: 99%

Modelling and design of grid voltage oriented vector control scheme for DC railway recuperating system

Ling Toh,

Wei Tan

2023

IJEECS

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The braking energy harvested by a railway vehicle can be restored to the utility grid with a power recuperating system. A grid connected voltage source inverter (VSI) is commonly used as a grid-feeding converter in the recuperating system. This paper proposes to integrate grid voltage oriented vector control (GVOVC) and third harmonic voltage injection pulse width modulation (THVI-PWM) technique for the VSI to ensure grid voltage and frequency synchronization. A simulation study is carried out to evaluate the feasibility of the proposed control and modulation schemes using MATLAB/Simulink. The results show that the proposed controller may reach steady-state operating mode within 7 ms by producing good quality AC voltages and currents waveforms. With the independent control of voltage quantities in dq reference frame, the regulation of active and reactive power could be realized.

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Microgrid Fault Detection and Classification Based on the Boosting Ensemble Method With the Hilbert-Huang Transform

Azizi

Şeker

2022

IEEE Trans. Power Delivery

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Control of grid‐connected converters

Cited by 3 publications

References 7 publications

Control Strategy for Distribution Generation Inverters to Maximize the Voltage Support in the Lowest Phase During Voltage Sags

Control Strategy for Distribution Generation Inverters to Maximize the Voltage Support in the Lowest Phase During Voltage Sags

Modelling and design of grid voltage oriented vector control scheme for DC railway recuperating system

Microgrid Fault Detection and Classification Based on the Boosting Ensemble Method With the Hilbert-Huang Transform

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