Improved grid-synchronization technique based on adaptive notch filter

Jung, Hoon-Young; Ji, Yongsung; Won, Chung-Yuen; Song, Dong-Il; Kim, Jin-Wook

doi:10.1109/ipec.2010.5544516

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…Moreover, control algorithm robustness is affected by dependency on phase locked loop (PLL). To overcome these drawbacks, a notch filterbased algorithm has been developed in [14]; nonetheless, the ideal amplitude and ideal phase characteristics of notch filter make it difficult to implement in the real time. The improved linear sinusoidal tracer (ILST)-based algorithm [15] suffers poor steadystate response, since an low pass filter (LPF) is present in the path of fundamental extraction.…”

Section: Introductionmentioning

confidence: 99%

Fuzzy logic gain‐tuned adaptive second‐order GI‐based multi‐objective control for reliable operation of grid‐interfaced photovoltaic system

Vedantham

Kumar

Singh

et al. 2018

IET Generation, Transmission & Distribution

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Section: Introductionmentioning

confidence: 99%

Fuzzy logic gain‐tuned adaptive second‐order GI‐based multi‐objective control for reliable operation of grid‐interfaced photovoltaic system

Vedantham

Kumar

Singh

et al. 2018

IET Generation, Transmission & Distribution

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“…There are other PLL based grid synchronization techniques like power based PLL, quadrature PLL (QPLL). A PLL based new technique for synchronization with the grid has also been developed in [12]. This paper describes grid-connected photovoltaic system with a proposed high voltage conversion ratio DC-DC converter.…”

Section: Introductionmentioning

confidence: 99%

Design of Grid-Connected Photovoltaic System

Khan¹,

Aamir²,

Mehmood³

et al. 2017

JPEE

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This paper presents a grid connected photovoltaic system (PV) with a proposed high voltage conversion ratio DC-DC converter which steps up the variable low input voltages of photovoltaic module to the required DC link voltage. This voltage is applied to an H-bridge inverter which converts DC voltage into AC voltage and a low pass filter is used to filter the output. By adjusting the duty ratio of switches in DC-DC converter, the magnitude of inverter's output voltage is controlled. The frequency and phase synchronization are ensured by a feedback signal taken from the grid. In this way, inverter is synchronized and connected with the grid to meet the energy demand. The PV system has been designed and simulated.

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